1. The high polymer material of the mildew-proof alloy chopsticks comprises the following raw materials in parts by weight: 40-70 parts of PPA, 20-50 parts of auxiliary materials, 25-30 parts of calcium carbonate, 0.5 part of flow modifier, 0.4-0.5 part of colorant, 0.5 part of antioxidant and 1-2 parts of titanium alloy powder; the PPA comprises the specific components of PA6T and PA66 segmented copolymer, wherein the content of PA6T is 35-50%; the glass fiber in the auxiliary material is long fiber or chopped fiber, and the thickness of the chopped fiber is 3-5 mm; the flow modifier is a dendritic nylon lubricant.

2. A preparation process of mildew-proof alloy chopsticks made of high polymer materials is characterized by comprising the following steps; step 1: taking 40-70 parts of PPA, 20-50 parts of auxiliary materials, 25-30 parts of calcium carbonate, 0.5 part of flow modifier, 0.4-0.5 part of colorant, 0.5 part of antioxidant and 1-2 parts of titanium alloy powder, and fully mixing for 5-10min in a mixer;

step 2: carrying out high-temperature heating treatment on the mixed material to enable the mixed material to be in a molten state, wherein the heating temperature is 200-300 ℃, and then introducing the mixed material into an extruder and leading out the mixed material through a screw rod;

and step 3: the material extruded by the extruder is extruded into strips through an extrusion disc, the inner diameter of a through hole of the extrusion disc is 2-5mm, then the materials are cut into particles through a knife wheel, the particles are screened through a sieve plate, the sieve plate is 300 meshes, and finally the materials are shaped through a thermoplastic mold.

3. The production device of the high polymer material mildew-proof alloy chopsticks according to claim 2, comprising a mounting frame (1), a mixing mechanism (2), a cooling mechanism (3), an extruding mechanism (4) and a granulating mechanism (5), wherein the mixing mechanism (2) is installed at the top of the mounting frame (1), the cooling mechanism (3) is installed at the outlet end of the mixing mechanism (2), the extruding mechanism (4) is installed at the outlet end of the cooling mechanism (3), and the granulating mechanism (5) is installed at the outlet end of the extruding mechanism (4);

the mixing mechanism (2) comprises a mixing barrel (21), a mounting plate (22), a stirring motor (23), a stirring shaft (24), stirring impellers (25), a discharging barrel (26) and a scraping assembly (27), wherein the mixing barrel (21) is fixedly mounted at the top of the mounting plate (1), the mounting plate (22) is fixedly mounted at the top of the mixing barrel (21), the stirring motor (23) is fixedly mounted at the top of the stirring motor (23), the stirring shaft (24) is rotatably mounted inside the mixing barrel (21), an output shaft of the stirring motor (23) is fixedly connected with the stirring shaft (24), the stirring impellers (25) are distributed in a plurality, the stirring impellers (25) are uniformly distributed along the central axis of the stirring shaft (24), and the discharging barrel (26) is fixedly mounted at the bottom of the mixing barrel (21);

the scraping component (27) is arranged in the discharging barrel (26), the scraping component (27) comprises a reciprocating screw rod (271), a thread seat (272), a connecting rod (273), an annular scraping plate (274) and a limiting block (275), the top end of the reciprocating screw (271) is fixedly connected with the bottom of the stirring shaft (24) through a coupler, the limit block (275) is fixedly arranged at the bottom end of the reciprocating screw rod (271), the thread seat (272) is arranged on the reciprocating screw rod (271) in a threaded manner, the number of the connecting rods (273) is a plurality, the connecting rods are uniformly distributed around the threaded seat (272), one ends of the connecting rods (273) are fixedly connected with the outer side of the threaded seat (272), the other ends of the connecting rods (273) are fixedly connected with the inner side of the annular scraper (274), the annular scraper (274) is in contact with the inner wall of the discharging barrel (26) and is in sliding connection with the inner wall of the discharging barrel (26);

the cooling mechanism (3) comprises a water cooling box (31), a material guide seat (32), U-shaped heat exchange tubes (33), condensate guide tubes (34), a material pump (35) and a condensate storage box (36), wherein the water cooling box (31) is fixedly arranged at the bottom end of a material discharge barrel (26), the material guide seat (32) is fixedly arranged in the water cooling box (31), the number of the U-shaped heat exchange tubes (33) is a plurality of, the U-shaped heat exchange tubes (33) are uniformly and fixedly arranged in the water cooling box (31), the number of the condensate guide tubes (34) is two, the condensate guide tubes (34) are respectively communicated with the inlet end and the outlet end of the U-shaped heat exchange tubes (33), the material pump (35) is fixedly arranged on the mounting frame (1), the outlet end of the material pump (35) is respectively communicated with the corresponding condensate guide tubes (34) through guide tubes, and the condensate storage box (36) is fixedly arranged on the mounting frame (1), the inlet end of the material pump (35) is communicated with the interior of the condensate storage tank (36) through a conduit;

the extruding mechanism (4) comprises a material guide cylinder (41), a screw shaft (42), an extruding box (43), an extruding disc (44), an air cylinder (45), a top disc (46) and an ejector rod (47), wherein the material guide cylinder (41) is fixedly arranged at the outlet end of the water cooling box (31), the screw shaft (42) is rotatably arranged inside the material guide cylinder (41), the extruding box (43) is fixedly arranged at the outlet end of the material guide cylinder (41), the extruding disc (44) is fixedly arranged inside the extruding box (43), the air cylinder (45) is fixedly arranged at one end of the extruding box (43), the top disc (46) is fixedly arranged at the output end of the air cylinder (45), the top disc (46) is slidably arranged inside the extruding box (43), the ejector rod (47) is fixedly arranged on the top disc (46), and the ejector rod (47) can be matched with the extruding disc (44);

the granulating mechanism (5) comprises a discharge channel (51), a cutting motor (52), a cutting knife wheel (53), a screening assembly (54) and a transmission assembly (55), the discharge channel (51) is fixedly installed at the bottom end of the extrusion box (43), the cutting motor (52) is fixedly installed on the outer side of the discharge channel (51), the cutting knife wheel (53) is rotatably installed inside the discharge channel (51), and an output shaft of the cutting motor (52) is fixedly connected with the cutting knife wheel (53);

the screening assembly (54) comprises a screening box (541), a filter plate (542), two material grooves (543), two collecting boxes (544), a cleaning plate (545), a fixed seat (546), two sliding rods (547), a rack (548) and a first gear (549), wherein the screening box (541) is fixedly installed at the bottom of the discharge channel (51), the filter plate (542) is fixedly installed inside the screening box (541), the two material grooves (543) are respectively arranged at two ends of the filter plate (542), the two collecting boxes (544) are respectively and fixedly installed at the positions of notches of the material grooves (543), the cleaning plate (545) is slidably installed on the top surface of the filter plate (542), the fixed seat (546) is fixedly installed at the top of the cleaning plate (545), and the sliding rods (547) penetrate through the side wall, the side wall and the side wall of the screening box (541) The screening device is connected with the screening box (541) in a sliding mode, one end of the sliding rod (547) is fixedly connected with the fixed seat (546), the other end of the sliding rod (547) is fixedly connected with the rack (548), the first gear (549) is rotatably installed on the outer side of the screening box (541), and the first gear (549) and the rack (548) are meshed with each other;

the transmission assembly (55) comprises a mounting seat (551), a second gear (552), a third gear (553), a driving motor (554), a first incomplete gear (555) and a second incomplete gear (556), the mounting seat (551) is fixedly mounted on the mounting rack (1), the second gear (552) is coaxially and fixedly connected with the first gear (549), the third gear (553) is rotatably mounted on the mounting base (551), the third gear (553) is meshed with the second gear (552), the driving motor (554) is fixedly arranged at the outer side of the mounting seat (551), a first incomplete gear (555) and a second incomplete gear (556) are fixedly arranged on an output shaft of the driving motor (554), the first incomplete gear (555) may be meshed with a second gear (552), and the second incomplete gear (556) may be meshed with a third gear (553).

4. The production device for preparing the mildew-proof alloy chopsticks made of the high polymer material as claimed in claim 3, wherein the upper and lower ends of the annular scraper (274) are chamfered, and the upper and lower ends of the annular scraper (274) scrape the material on the inner wall of the discharge barrel (26).

5. The production device for preparing the mildew-proof alloy chopsticks made of the polymer materials as claimed in claim 3, wherein cold water is introduced into the water cooling tank (31) for cooling materials, and the condensate introduced by the condensate conduit (34) can refrigerate the water.

6. The production device for preparing the mildew-proof alloy chopsticks made of the high polymer material as claimed in claim 3, wherein the upper end of the material guiding seat (32) is used for guiding out the melted material, the lower end of the material guiding seat (32) is in contact with cold water, and the material guiding seat (32) has thermal conductivity.

7. The production device for preparing the mildew-proof alloy chopsticks made of the high polymer material as claimed in claim 3, wherein the number of the ejector rods (47) is several, the several ejector rods (47) correspond to the through holes of the extrusion disc (44) one by one, and the several ejector rods (47) can be inserted into the corresponding through holes and are connected with the through holes in a sliding manner.

8. The production device for preparing the mildew-proof alloy chopsticks made of the polymer materials as claimed in claim 3, wherein the number of the cutting knife wheels (53) is several, the several cutting knife wheels (53) are uniformly distributed on an output shaft of the cutting motor (52), and the cutting knife wheels (53) are used for cutting strip-shaped materials into particles.

9. The production device for making the mildewproof alloy chopsticks according to claim 3, wherein the first incomplete gear (555) and the second incomplete gear (556) are arranged in parallel, and the tooth ends of the first incomplete gear (555) and the second incomplete gear (556) are symmetrical.

10. The production device for preparing the mildewproof alloy chopsticks according to claim 3, wherein the second gear (552) and the third gear (553) are arranged in a staggered mode, the staggered portion of the second gear (552) can be meshed with the first incomplete gear (555), and the staggered portion of the third gear (553) can be meshed with the second incomplete gear (556).

Background

Bamboo chopsticks are not easy to clean, have strong water absorption and adsorption, have residue of detergent and are easy to be polluted by pathogenic microorganisms. The bamboo chopsticks must be sterilized at high temperature often to keep clean, so as to avoid the phenomena of mildew and hair growth of the bamboo chopsticks, and the bamboo chopsticks need to be replaced in a batch for three months;

substances such as heavy metal lead, organic solvent benzene and the like in the coating of the colored paint coated chopsticks have carcinogenicity; once the coating on the chopsticks falls off along with abrasion in use, the coating enters human bodies along with food, and the health of people can be seriously harmed; the metal chopsticks are heavy, bad in hand feeling and strong in heat conductivity, and easily scald the mouth when eating overheated food. It is also clear that stainless steel is not food grade, and if inferior stainless steel tableware is used or stainless steel tableware is used in an improper method, heavy metals can cause harm to human health;

the melamine plastic chopsticks are crisp in texture, do not resist high temperature, are easy to deform and melt after being heated, and generate substances harmful to human bodies; PPS (polyphenylene sulfide) plastic chopsticks are hard in texture and bright in color, but substances harmful to human health are generated in the extrusion and injection molding processes of PPS, so that no PPS plastic chopsticks passing food safety standard certification are available in the market at present; therefore, the invention provides a preparation process of the mildew-proof alloy chopsticks made of the high polymer material.

Disclosure of Invention

The invention aims to solve the defect that the prior art cannot meet the requirements of environmental protection and durability, and provides a high polymer material for mildew-proof alloy chopsticks. In order to achieve the purpose, the invention adopts the following technical scheme:

the high polymer material of the mildew-proof alloy chopsticks comprises the following raw materials in parts by weight: 40-70 parts of PPA, 20-50 parts of auxiliary materials, 25-30 parts of calcium carbonate, 0.5 part of flow modifier, 0.4-0.5 part of colorant, 0.5 part of antioxidant and 1-2 parts of titanium alloy powder;

the PPA comprises the specific components of PA6T and PA66 segmented copolymer, wherein the content of PA6T is 35-50%; the glass fiber in the auxiliary material is long fiber or chopped fiber, and the thickness of the chopped fiber is 3-5 mm; the flow modifier is a dendritic nylon lubricant.

The invention also provides a preparation process of the mildew-proof alloy chopsticks made of the high polymer material, which comprises the following steps;

step 1: taking 40-70 parts of PPA, 20-50 parts of auxiliary materials, 25-30 parts of calcium carbonate, 0.5 part of flow modifier, 0.4-0.5 part of colorant, 0.5 part of antioxidant and 1-2 parts of titanium alloy powder, and fully mixing for 5-10min in a mixer;

step 2: carrying out high-temperature heating treatment on the mixed material to enable the mixed material to be in a molten state, wherein the heating temperature is 200-300 ℃, and then introducing the mixed material into an extruder and leading out the mixed material through a screw rod;

and step 3: the material extruded by the extruder is extruded into strips through an extrusion disc, the inner diameter of a through hole of the extrusion disc is 2-5mm, then the materials are cut into particles through a knife wheel, the particles are screened through a sieve plate, the sieve plate is 300 meshes, and finally the materials are shaped through a thermoplastic mold.

The invention also provides a production device for preparing the mildew-proof alloy chopsticks made of the high polymer material, which comprises an installation frame, a mixing mechanism, a cooling mechanism, an extruding mechanism and a granulating mechanism, wherein the mixing mechanism is installed at the top of the installation frame;

the mixing mechanism comprises a mixing barrel, a mounting plate, a stirring motor, a stirring shaft, stirring impellers, a discharging barrel and a scraping assembly, wherein the mixing barrel is fixedly mounted at the top of the mounting frame, the mounting plate is fixedly mounted at the top of the mixing barrel, the stirring motor is fixedly mounted at the top of the stirring motor, the stirring shaft is rotatably mounted inside the mixing barrel, an output shaft of the stirring motor is fixedly connected with the stirring shaft, the stirring impellers are distributed uniformly along the central axis of the stirring shaft, and the discharging barrel is fixedly mounted at the bottom of the mixing barrel; the scraping assembly is arranged inside the discharging barrel and comprises a reciprocating screw, a threaded seat, connecting rods, annular scrapers and a limiting block, the top end of the reciprocating screw is fixedly connected with the bottom of the stirring shaft through a coupler, the limiting block is fixedly arranged at the bottom end of the reciprocating screw, the threaded seat is in threaded arrangement on the reciprocating screw, the connecting rods are a plurality of and are uniformly distributed around the threaded seat, one ends of the connecting rods are fixedly connected with the outer side of the threaded seat, the other ends of the connecting rods are fixedly connected with the inner side of the annular scrapers, and the annular scrapers are in contact with the inner wall of the discharging barrel and are in sliding connection with the inner wall of the discharging barrel;

the cooling mechanism comprises a water cooling tank, a material guide seat, U-shaped heat exchange tubes, condensate guide tubes, a material pump and a condensate storage tank, the water cooling tank is fixedly arranged at the bottom end of a discharge barrel, the material guide seat is fixedly arranged in the water cooling tank, the number of the U-shaped heat exchange tubes is a plurality of, the U-shaped heat exchange tubes are uniformly and fixedly arranged in the water cooling tank, the number of the condensate guide tubes is two, the two condensate guide tubes are respectively communicated with the inlet ends and the outlet ends of the U-shaped heat exchange tubes, the material pump is fixedly arranged on a mounting rack, the outlet ends of the material pump are respectively communicated with the corresponding condensate guide tubes through guide tubes, the condensate storage tank is fixedly arranged on the mounting rack, and the inlet ends of the material pump are communicated with the interior of the condensate storage tank through guide tubes;

the extrusion mechanism comprises a guide cylinder, a spiral shaft, an extrusion box, an extrusion disc, an air cylinder, a top disc and a top rod, wherein the guide cylinder is fixedly arranged at the outlet end of the water cooling box, the spiral shaft is rotatably arranged inside the guide cylinder, the extrusion box is fixedly arranged at the outlet end of the guide cylinder, the extrusion disc is fixedly arranged inside the extrusion box, one end of the extrusion box is fixedly provided with the air cylinder, the output end of the air cylinder is fixedly provided with the top disc, the top disc is slidably arranged inside the extrusion box, the top rod is fixedly arranged on the top disc, and the top rod can be matched with the extrusion disc;

the granulating mechanism comprises a discharge channel, a cutting motor, a cutting knife wheel, a screening assembly and a transmission assembly, the discharge channel is fixedly arranged at the bottom end of the extrusion box, the cutting motor is fixedly arranged on the outer side of the discharge channel, the cutting knife wheel is rotatably arranged inside the discharge channel, and an output shaft of the cutting motor is fixedly connected with the cutting knife wheel;

the screening component comprises a screening box, a filter plate, a material groove, a collecting box, a cleaning plate, a fixed seat, a slide bar, a rack and a first gear, the screening box is fixedly arranged at the bottom of the discharge channel, the filter plate is fixedly arranged inside the screening box, the number of the material grooves is two, the two material grooves are respectively arranged at the two ends of the filter plate, the number of the collecting boxes is two, the two collecting boxes are respectively and fixedly arranged at the notch positions of the material grooves, the cleaning plate is slidably arranged on the top surface of the filter plate, the fixed seat is fixedly arranged on the top of the cleaning plate, the slide bar penetrates through the side wall of the screening box and is connected with the screening box in a sliding way, one end of the slide bar is fixedly connected with the fixed seat, the other end of the sliding rod is fixedly connected with the rack, the first gear is rotatably arranged on the outer side of the screening box, and the first gear is meshed with the rack;

the transmission assembly comprises a mounting seat, a second gear, a third gear, a driving motor, a first incomplete gear and a second incomplete gear, the mounting seat is fixedly mounted on the mounting frame, the second gear is fixedly connected with the first gear in a coaxial mode, the third gear is rotatably mounted on the mounting seat, the third gear is meshed with the second gear, the driving motor is fixedly mounted on the outer side of the mounting seat, the output shaft of the driving motor is fixedly provided with the first incomplete gear and the second incomplete gear, the first incomplete gear can be meshed with the second gear, and the second incomplete gear can be meshed with the third gear.

Preferably, the edge openings at the upper end and the lower end of the annular scraper are provided with chamfers, and the edge openings of the annular scraper scrape the materials on the inner wall of the discharge barrel.

Preferably, cold water is introduced into the water cooling tank to cool the material, and the condensate introduced by the condensate conduit can refrigerate the water.

Preferably, the upper end of the material guide seat is used for guiding out molten materials, the lower end of the material guide seat is in contact with cold water, and the material guide seat has thermal conductivity.

Preferably, the number of the ejector rods is a plurality, the ejector rods correspond to the through holes of the extrusion disc one by one, and the ejector rods can be inserted into the corresponding through holes and are in sliding connection with the through holes. Preferably, the number of the cutting knife wheels is a plurality, the cutting knife wheels are uniformly distributed on an output shaft of the cutting motor, and the cutting knife wheels are used for cutting strip-shaped materials into particles. Preferably, the first incomplete gear and the second incomplete gear are arranged in parallel, and the teeth ends of the first incomplete gear and the second incomplete gear are symmetrical with each other.

Preferably, the second gear and the third gear are arranged in a staggered manner, the staggered part of the second gear can be meshed with the first incomplete gear, and the staggered part of the third gear can be meshed with the second incomplete gear.

The preparation process of the mildew-proof alloy chopsticks made of the high polymer materials has the beneficial effects that: the high-temperature nylon is used as a base material and is reinforced by glass fiber and titanium alloy, and the high-temperature nylon has the characteristics of light weight, no decolorization, no toxicity, environmental protection and long service cycle;

the production device for preparing the mildew-proof alloy chopsticks made of the high polymer materials has the advantages that:

1. the stirring shaft can synchronously drive the reciprocating screw rod to rotate, so that the threaded seat can reciprocate up and down along the reciprocating screw rod, the annular scraper can slide up and down along the inner wall of the discharge barrel, and materials adhered to the inner wall of the discharge barrel are scraped, and the complexity of later cleaning work and the saved use cost are avoided;

2. the molten material is introduced into the water cooling tank, firstly, heat exchange is carried out between water and the material, the material is cooled, then, condensate is introduced into the U-shaped heat exchange tube by the material pump, and at the moment, the condensate exchanges heat with the water, so that the water is cooled, the water in the water cooling tank can be always kept in a low-temperature state, and the molten material is further cooled all the time;

3. make the push plate drive the ejector pin through the cylinder and remove, then the ejector pin cooperates with corresponding through-hole on the push plate, can be ejecting with the material in the push plate through-hole like this, avoids remaining material to cause the jam to the through-hole.

Drawings

FIG. 1 is a flow chart of a process for manufacturing mildew-proof alloy chopsticks made of polymer materials according to the present invention;

FIG. 2 is a schematic structural diagram I of a production apparatus for producing mildew-proof alloy chopsticks made of polymer materials according to the present invention;

FIG. 3 is a schematic structural diagram II of a production apparatus for producing mildew-proof alloy chopsticks made of polymer materials according to the present invention;

FIG. 4 is a schematic structural diagram of a part of a production apparatus for producing mildew-proof alloy chopsticks made of polymer materials according to the present invention;

FIG. 5 is a schematic structural diagram of a mixing mechanism of a production device for producing mildew-proof alloy chopsticks made of polymer materials according to the present invention;

fig. 6 is a schematic structural diagram of a scraping component of a production device for producing mildew-proof alloy chopsticks made of polymer materials according to the present invention;

FIG. 7 is a schematic structural diagram of a cooling mechanism of a production device for producing mildew-proof alloy chopsticks made of polymer materials according to the present invention;

FIG. 8 is a schematic structural diagram of an extrusion mechanism of a production device for producing mildew-proof alloy chopsticks made of polymer materials according to the present invention;

fig. 9 is a schematic structural diagram of a granulation mechanism of a production device for producing mildew-proof alloy chopsticks made of high polymer materials according to the present invention;

FIG. 10 is a schematic structural diagram of a screening component of a production apparatus for producing mildew-proof alloy chopsticks made of polymer materials according to the present invention;

FIG. 11 is a schematic structural diagram of a transmission assembly of a production device for producing mildew-proof alloy chopsticks made of polymer materials according to the present invention;

in the figure: the device comprises a mounting rack 1, a mixing mechanism 2, a mixing barrel 21, a mounting plate 22, a stirring motor 23, a stirring shaft 24, a stirring impeller 25, a discharging barrel 26, a scraping component 27, a reciprocating screw 271, a threaded seat 272, a connecting rod 273, an annular scraper 274, a limiting block 275, a cooling mechanism 3, a water cooling tank 31, a material guide seat 32, a U-shaped heat exchange pipe 33, a condensate conduit 34, a material pump 35, a condensate storage tank 36, an extruding mechanism 4, a material guide barrel 41, a screw shaft 42, an extruding box 43, a squeezing disc 44, an air cylinder 45, a top disc 46, a top rod 47, a granulating mechanism 5, a discharging channel 51, a cutting motor 52, a cutting knife wheel 53, a screening component 54, a screening box 541, a filter plate 544, a trough 543, a collecting box, a cleaning plate 545, a fixing seat 546, a sliding rod 553, a rack 548, a first gear 549, a transmission component 55, a mounting seat 551, a second gear 552, a third gear, a driving motor 554, a stirring blade, a stirring rod 272, a stirring rod 80, a stirring rod 45, a stirring rod 275, a stirring mechanism 4, a stirring mechanism 4, a stirring mechanism, a stirring, A first incomplete gear 555, a second incomplete gear 556.

Detailed description of the inventiontechnical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is apparent that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.

Example 1:

the high polymer material of the mildew-proof alloy chopsticks comprises the following raw materials in parts by weight: 70 parts of PPA, 50 parts of auxiliary materials, 25 parts of calcium carbonate, 0.5 part of flow modifier, 0.4 part of colorant, 0.5 part of antioxidant and 1 part of titanium alloy powder;

the PPA comprises PA6T and PA66 block copolymer, wherein the content of PA6T is 50%; the glass fiber in the auxiliary material is long fiber or short fiber, and the thickness of the short fiber is 5 mm; the flow modifier is a dendritic nylon lubricant.

Referring to fig. 1, a preparation process of a mildew-proof alloy chopstick made of a high polymer material comprises the following steps;

step 1: taking 70 parts of PPA, 50 parts of auxiliary materials, 25 parts of calcium carbonate, 0.5 part of flow modifier, 0.5 part of colorant, 0.5 part of antioxidant and 1 part of titanium alloy powder, and fully mixing for 5min in a mixer;

step 2: heating the mixed materials at high temperature to enable the mixed materials to be in a molten state, wherein the heating temperature is 300 ℃, and then guiding the mixed materials into an extruder to be led out through a screw rod;

and step 3: the material extruded by the extruder is extruded into strips through an extrusion disc, the inner diameter of a through hole of the extrusion disc is 2mm, then the materials are cut into particles through a cutter wheel, the particles are screened through a sieve plate, the particles are led out, the sieve plate is 200 meshes, and finally the materials are shaped through a thermoplastic mold.

The invention uses high-temperature nylon as a base material, is reinforced by glass fiber and titanium alloy, and has the characteristics of light weight, no decolorization, no toxicity, environmental protection and long service cycle.

Example 2:

the high polymer material of the mildew-proof alloy chopsticks comprises the following raw materials in parts by weight: 40 parts of PPA, 20 parts of auxiliary materials, 30 parts of calcium carbonate, 0.5 part of flow modifier, 0.4 part of colorant, 0.5 part of antioxidant and 2 parts of titanium alloy powder;

the PPA comprises PA6T and PA66 segmented copolymer, wherein the content of PA6T is 35%; the glass fiber in the auxiliary material is long fiber or short fiber, and the thickness of the short fiber is 5 mm; the flow modifier is a dendritic nylon lubricant.

Referring to fig. 1, a preparation process of a mildew-proof alloy chopstick made of a high polymer material comprises the following steps;

step 1: taking 40 parts of PPA, 20 parts of auxiliary materials, 30 parts of calcium carbonate, 0.5 part of flow modifier, 0.4 part of colorant, 0.5 part of antioxidant and 2 parts of titanium alloy powder, and fully mixing for 10min in a mixer;

step 2: heating the mixed materials at high temperature to make the mixed materials in a molten state, wherein the heating temperature is 200 ℃, and then guiding the mixed materials into an extruder and guiding the mixed materials out through a screw rod;

and step 3: the material extruded by the extruder is extruded into strips through an extrusion disc, the inner diameter of a through hole of the extrusion disc is 5mm, then the materials are cut into particles through a cutter wheel, the particles are screened through a sieve plate, the screened particles are guided out, the sieve plate is 300 meshes, and finally the materials are shaped through a thermoplastic mold.

Example 3:

in the embodiment 2, materials need to be fully mixed by a stirrer, and because the mixed materials contain nylon plastics, the materials are easy to adhere after being mixed, and the later cleaning is difficult; in addition, the extruder makes the materials into strips through the extrusion disc, after the materials fall off, the materials are easy to remain in the through holes of the extrusion disc, and the through holes of the extrusion disc are easy to block after the materials are completely cooled, so that the extrusion efficiency is reduced;

referring to fig. 2-11, a production device for preparing mildew-proof alloy chopsticks made of high polymer materials comprises an installation frame 1, a mixing mechanism 2, a cooling mechanism 3, an extruding mechanism 4 and a granulating mechanism 5, wherein the mixing mechanism 2 is installed at the top of the installation frame 1, the cooling mechanism 3 is installed at the outlet end of the mixing mechanism 2, the extruding mechanism 4 is installed at the outlet end of the cooling mechanism 3, and the granulating mechanism 5 is installed at the outlet end of the extruding mechanism 4;

the mixing mechanism 2 comprises a mixing barrel 21, a mounting plate 22, a stirring motor 23, a stirring shaft 24, stirring impellers 25, a discharging barrel 26 and a scraping assembly 27, the mixing barrel 21 is fixedly mounted at the top of the mounting plate 1, the mounting plate 22 is fixedly mounted at the top of the mixing barrel 21, the stirring motor 23 is fixedly mounted at the top of the stirring motor 23, the stirring shaft 24 is rotatably mounted inside the mixing barrel 21, an output shaft of the stirring motor 23 is fixedly connected with the stirring shaft 24, the stirring impellers 25 are distributed in a plurality, the stirring impellers 25 are uniformly distributed along the central axis of the stirring shaft 24, and the discharging barrel 26 is fixedly mounted at the bottom of the mixing barrel 21; the stirring shaft 24 is driven to rotate by the stirring motor 23, so that all the stirring impellers 25 rotate at a high speed, and the mixed materials are fully mixed.

The scraping component 27 is installed inside the discharging cylinder 26, the scraping component 27 comprises a reciprocating screw 271, a threaded seat 272, connecting rods 273, an annular scraping plate 274 and a limiting block 275, the top end of the reciprocating screw 271 is fixedly connected with the bottom of the stirring shaft 24 through a coupler, the limiting block 275 is fixedly installed at the bottom end of the reciprocating screw 271, the threaded seat 272 is installed on the reciprocating screw 271 in a threaded manner, the connecting rods 273 are a plurality and are uniformly distributed around the threaded seat 272, one ends of the connecting rods 273 are fixedly connected with the outer side of the threaded seat 272, the other ends of the connecting rods 273 are fixedly connected with the inner side of the annular scraping plate 274, and the annular scraping plate 274 is in contact with the inner wall of the discharging cylinder 26 and is in sliding connection with the inner; chamfers are respectively arranged on the edge openings of the upper end and the lower end of the annular scraper 274, and the edge openings of the annular scraper 274 scrape materials on the inner wall of the discharge barrel 26.

The stirring shaft 24 can synchronously drive the reciprocating screw 271 to rotate, so that the thread seat 272 can move up and down along the reciprocating screw 271, the annular scraping plate 274 can slide up and down along the inner wall of the discharging barrel 26, and then the material adhered to the inner wall of the discharging barrel 26 is scraped, and the trouble of later cleaning work and the saved use cost are avoided.

The cooling mechanism 3 comprises a water cooling tank 31, a material guide seat 32, a U-shaped heat exchange tube 33, a condensate conduit 34, a material pump 35 and a condensate storage tank 36, the water cooling tank 31 is fixedly arranged at the bottom end of the discharging barrel 26, cold water is introduced into the water cooling tank 31 for cooling the material, and condensate introduced by the condensate conduit 34 can refrigerate water; the material guide seat 32 is fixedly installed inside the water cooling tank 31, the upper end of the material guide seat 32 is used for guiding out the molten material, the lower end of the material guide seat 32 is in contact with cold water, and the material guide seat 32 has thermal conductivity; the number of the U-shaped heat exchange tubes 33 is a plurality, the U-shaped heat exchange tubes 33 are uniformly and fixedly arranged in the water cooling box 31, the number of the condensate conduits 34 is two, the two condensate conduits 34 are respectively communicated with the inlet end and the outlet end of the U-shaped heat exchange tubes 33, the material pump 35 is fixedly arranged on the mounting rack 1, the outlet end of the material pump 35 is respectively communicated with the corresponding condensate conduit 34 through a conduit, the condensate storage tank 36 is fixedly arranged on the mounting rack 1, and the inlet end of the material pump 35 is communicated with the interior of the condensate storage tank 36 through a conduit;

the molten material is introduced into the water cooling tank 31, firstly, heat exchange is carried out between water and the material, the material is cooled, then, the material pump 35 introduces condensate into the U-shaped heat exchange tube 33, at the moment, the condensate exchanges heat with the water, and the water is cooled, so that the water in the water cooling tank 31 can be always kept in a low-temperature state, and the molten material is cooled all the time. The extruding mechanism 4 comprises a material guide cylinder 41, a screw shaft 42, an extruding box 43, an extruding disc 44, an air cylinder 45, a top disc 46 and a top rod 47, wherein the material guide cylinder 41 is fixedly arranged at the outlet end of the water cooling box 31, the screw shaft 42 is rotatably arranged inside the material guide cylinder 41, the extruding box 43 is fixedly arranged at the outlet end of the material guide cylinder 41, the extruding disc 44 is fixedly arranged inside the extruding box 43, the air cylinder 45 is fixedly arranged at one end of the extruding box 43, the top disc 46 is fixedly arranged at the output end of the air cylinder 45, the top disc 46 is slidably arranged inside the extruding box 43, the top rod 47 is fixedly arranged on the top disc 46, and the top rod 47 can be matched with the extruding disc 44; the number of the ejector rods 47 is a plurality, the ejector rods 47 correspond to the through holes of the extrusion disc 44 one by one, and the ejector rods 47 can be inserted into the corresponding through holes and are in sliding connection with the through holes; make the holding-up plate 46 drive ejector pin 47 through cylinder 45 and remove, then ejector pin 47 and the corresponding through-hole cooperation on the holding-up plate 46, can be ejecting with the material in the holding-up plate 46 through-hole like this, avoid remaining material to cause the jam to the through-hole.

The granulating mechanism 5 comprises a discharge channel 51, a cutting motor 52, a cutting knife wheel 53, a screening assembly 54 and a transmission assembly 55, wherein the discharge channel 51 is fixedly arranged at the bottom end of the extrusion box 43, the cutting motor 52 is fixedly arranged at the outer side of the discharge channel 51, the cutting knife wheel 53 is rotatably arranged in the discharge channel 51, and an output shaft of the cutting motor 52 is fixedly connected with the cutting knife wheel 53; the number of the cutting knife wheels 53 is several, the cutting knife wheels 53 are evenly distributed on the output shaft of the cutting motor 52, and the cutting knife wheels 53 are used for cutting strip-shaped materials into particles.

The screening assembly 54 comprises a screening material box 541, a filtering plate 542, material tanks 543, collecting boxes 544, cleaning plates 545, a fixing seat 546, a slide bar 547, racks 548 and a first gear 549, the screening material box 541 is fixedly installed at the bottom of the discharging channel 51, the filtering plate 542 is fixedly installed inside the screening material box 541, the number of the material tanks 543 is two, the two material tanks 543 are respectively arranged at two ends of the filtering plate 542, the number of the collecting boxes 544 is two, the two collecting boxes 544 are respectively and fixedly installed at the positions of the notches of the material tanks 543, the cleaning plates 545 are slidably installed on the top surfaces of the filtering plate 542, two ends of the cleaning plates 545 are both of a slope structure, and the cleaning plates 545 can move to the positions of the notches of the two material tanks 543; the fixed seat 546 is fixedly installed at the top of the cleaning plate 545, the sliding rod 547 penetrates through the side wall of the screening material box 541 and is in sliding connection with the screening material box 541, one end of the sliding rod 547 is fixedly connected with the fixed seat 546, the other end of the sliding rod 547 is fixedly connected with the rack 548, the first gear 549 is rotatably installed on the outer side of the screening material box 541, and the first gear 549 is meshed with the rack 548;

drive rack 548 through first gear 549 and remove to make slide bar 547 drive cleaning plate 545 slide on filter 542, cleaning plate 545 can clear up the filter on filter 542 like this, avoids the filter residue to cause the jam to filter 542, and in addition, cleaning plate 545 will filter residue propelling movement to corresponding silo 543 in, then fall and store recycle in collecting box 544.

The transmission assembly 55 comprises a mounting base 551, a second gear 552, a third gear 553, a driving motor 554, a first incomplete gear 555 and a second incomplete gear 556, wherein the mounting base 551 is fixedly mounted on the mounting frame 1, the second gear 552 is coaxially and fixedly connected with the first gear 549, the third gear 553 is rotatably mounted on the mounting base 551, the third gear 553 is meshed with the second gear 552, the driving motor 554 is fixedly mounted on the outer side of the mounting base 551, an output shaft of the driving motor 554 is fixedly provided with the first incomplete gear 555 and the second incomplete gear 556, the first incomplete gear 555 can be meshed with the second gear 552, and the second incomplete gear 556 can be meshed with the third gear 553; the first incomplete gear 555 and the second incomplete gear 556 are arranged in parallel, and the tooth ends of the first incomplete gear 555 and the second incomplete gear 556 are symmetrical; the second gear 552 and the third gear 553 are disposed in an offset manner, and an offset portion of the second gear 552 may mesh with the first incomplete gear 555 and an offset portion of the third gear 553 may mesh with the second incomplete gear 556.

The first incomplete gear 555 and the second incomplete gear 556 can be driven to rotate simultaneously by the driving motor 554, and when the first incomplete gear 555 is meshed with the second gear 552, the second gear 552 is meshed to be opposite to the rotating direction of the driving motor 554; when the second incomplete gear 556 is engaged with the third gear 553, the third gear 553 turns in the opposite direction to the rotation direction of the driving motor 554, and at this time, the second gear 552 rotates in the same direction as the driving motor 554; by doing so, the rotation direction of the second gear 552 is periodically changed, so that the rotation direction of the first gear 549 is periodically changed, which enables the cleaning plate 545 to be reciprocally moved.

The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.