1. The preparation method of the polypropylene modified plastic with high thermoplasticity and corrosion resistance is characterized by comprising the following steps:

s1, weighing the raw materials;

s2, placing the polypropylene resin, the polypropylene, the polyvinyl alcohol, the methyl methacrylate, the magnesium stearate, the polyethylene wax and the silicon dioxide into a stirrer to be stirred to obtain a first mixture;

s3, placing the filler, the plasticizer, the antioxidant and the flame retardant into a high-speed stirrer to be stirred to obtain a second mixture;

and S4, mixing the first mixture and the second mixture, adding the mixture into a double-screw extruder, extruding to obtain a raw material pipe, and cutting the raw material pipe into granules through a cutting device to obtain the high-thermoplasticity corrosion-resistant polypropylene modified plastic.

2. The method for preparing the polypropylene modified plastic with high thermoplasticity and corrosion resistance as claimed in claim 1, wherein the step S1 comprises the following raw materials by weight: 60-70 parts of polypropylene resin, 15-30 parts of polypropylene, 10-12 parts of polyvinyl alcohol, 3-8 parts of methyl methacrylate, 4-6 parts of magnesium stearate, 2-4 parts of polyethylene wax, 2-4 parts of silicon dioxide, 10-15 parts of filler, 2-4 parts of plasticizer, 3-5 parts of antioxidant and 4-6 parts of flame retardant.

3. The method as claimed in claim 1, wherein the stirring speed of the stirrer in step S2 is 300-.

4. The method as claimed in claim 1, wherein the stirring speed of the high speed stirrer in step S3 is 800-.

5. The method as claimed in claim 1, wherein the processing temperature of the twin-screw extruder in step S4 is 170-260 ℃, and the rotation speed of the main frame is 300 r/min.

6. The method for preparing polypropylene modified plastic with high thermoplastic and corrosion resistance as claimed in claim 1, wherein the plasticizer is dibutyl phthalate.

7. The method for preparing high thermoplastic corrosion-resistant polypropylene modified plastic according to claim 1, wherein the filler is one or more of calcium carbonate, silica, talc, barium sulfate and wollastonite, and is mixed in any proportion.

8. The method for preparing the polypropylene modified plastic with high thermoplasticity and corrosion resistance as claimed in claim 1, is characterized in that the method for preparing the flame retardant comprises the following steps: weighing 15-20 parts of triethyl phosphate, 18-20 parts of melamine, 25-35 parts of chlorinated paraffin and 30-40 parts of magnesium hydroxide according to the following parts by weight, mixing and dispersing by using ultrasonic waves, and then stirring to obtain the flame retardant.

9. The method for preparing the polypropylene modified plastic with high thermoplasticity and corrosion resistance as claimed in claim 1, wherein the operation process of the blanking device is as follows:

firstly, placing a raw material pipe on the upper surface of a workbench (1), driving a sliding plate (207) to move downwards on a sliding rod (206) by rotating a handle (205), and driving a clamping plate (209) to clamp the raw material pipe through a telescopic spring (208);

secondly, the output end of the lifting motor (302) is driven to drive the two first sliding seats (304) to be close to or far away from each other, and the two connecting rods (310) are matched to drive the limiting plate (308) to move in the lifting chamber (301) in the vertical direction, so that the cutting roller (409) is lifted and moved to a position on the raw material pipe to be cut;

and thirdly, driving a cutting roller (409) to rotate by a cutting motor (410) to prepare for cutting, and driving a motor chamber (407) to slide in the horizontal direction by a moving motor (402) to perform feeding motion to cut the raw material pipe, so that the cutting process is completed.

10. A high-thermoplastic corrosion-resistant polypropylene modified plastic, which is prepared by the preparation method of the high-thermoplastic corrosion-resistant polypropylene modified plastic according to claim 1.

Background

Plastics are plastic (flexible) materials formed by processing and molding synthetic resins with high molecular weight as the main component and adding appropriate additives, such as plasticizers, stabilizers, antioxidants, flame retardants, colorants, etc., or rigid materials formed by curing and crosslinking, and are widely used and are virtually indispensable in our daily lives.

The existing plastic has poor corrosion resistance and thermoplasticity, so that the quality of a plastic product is poor, the plastic product is difficult to store, the plastic is difficult to stretch due to poor thermoplasticity, and the application range is low; a cutting device is often used in the process of preparing plastics, and the moving range of a cutting roller of the conventional cutting device is small during cutting, so that the device is narrow in application range and low in cutting precision.

In order to solve the above-mentioned drawbacks, a technical solution is now provided.

Disclosure of Invention

The invention aims to provide a high-thermoplasticity corrosion-resistant polypropylene modified plastic and a preparation method thereof.

The technical problems to be solved by the invention are as follows:

the existing plastic has poor corrosion resistance and thermoplasticity, so that the quality of a plastic product is poor, the plastic product is difficult to store, the plastic is difficult to stretch due to poor thermoplasticity, and the application range is low; a cutting device is often used in the process of preparing plastics, and the moving range of a cutting roller of the conventional cutting device is small during cutting, so that the device is narrow in application range and low in cutting precision.

The purpose of the invention can be realized by the following technical scheme:

a preparation method of polypropylene modified plastic with high thermoplasticity and corrosion resistance comprises the following steps:

s1, weighing the raw materials;

s2, placing the polypropylene resin, the polypropylene, the polyvinyl alcohol, the methyl methacrylate, the magnesium stearate, the polyethylene wax and the silicon dioxide into a stirrer to be stirred to obtain a first mixture;

s3, placing the filler, the plasticizer, the antioxidant and the flame retardant into a high-speed stirrer to be stirred to obtain a second mixture;

and S4, mixing the first mixture and the second mixture, adding the mixture into a double-screw extruder, extruding to obtain a raw material pipe, and cutting the raw material pipe into granules through a cutting device to obtain the high-thermoplasticity corrosion-resistant polypropylene modified plastic.

Further, step S1 includes the following raw materials by weight: 60-70 parts of polypropylene resin, 15-30 parts of polypropylene, 10-12 parts of polyvinyl alcohol, 3-8 parts of methyl methacrylate, 4-6 parts of magnesium stearate, 2-4 parts of polyethylene wax, 2-4 parts of silicon dioxide, 10-15 parts of filler, 2-4 parts of plasticizer, 3-5 parts of antioxidant and 4-6 parts of flame retardant.

Further, in step S2, the stirring speed of the stirrer is 300-.

Further, the stirring speed of the high-speed stirrer in the step S3 is 800-.

Further, the processing temperature of the twin-screw extruder in the step S4 is 170-260 ℃, and the rotation speed of the main machine is 300 r/min.

Further, the plasticizer is dibutyl phthalate.

Furthermore, the filler is one or more of calcium carbonate, silicon dioxide, talcum powder, barium sulfate and wollastonite which are mixed in any proportion.

Further, the preparation method of the flame retardant comprises the following steps: weighing 15-20 parts of triethyl phosphate, 18-20 parts of melamine, 25-35 parts of chlorinated paraffin and 30-40 parts of magnesium hydroxide according to the following parts by weight, mixing and dispersing by using ultrasonic waves, and then stirring to obtain the flame retardant.

Further, the working process of the blanking device is as follows:

firstly, placing a raw material pipe on the upper surface of a workbench, and driving a sliding plate to move downwards on a sliding rod by rotating a handle, so that a clamping plate is driven by a telescopic spring to clamp the raw material pipe;

secondly, the output end of the lifting motor is driven to drive the two first sliding seats to be close to or far away from each other, and the two first sliding seats are matched with the two connecting rods to drive the limiting plate to move in the lifting chamber in the vertical direction, so that the cutting roller is lifted and moved to a position, needing to be cut, on the raw material pipe;

and thirdly, driving a cutting roller to rotate by a cutting motor to prepare for cutting, and driving a motor chamber to slide in the horizontal direction by a movable motor to perform feeding motion to cut the raw material pipe to finish the cutting process.

A high-thermoplastic corrosion-resistant polypropylene modified plastic prepared by the preparation method of the high-thermoplastic corrosion-resistant polypropylene modified plastic according to claim 1.

The invention has the beneficial effects that:

according to the invention, the corrosion resistance of the plastic is improved by adding the filler, the filler has a good corrosion resistance effect, the service life is prolonged, and the corrosion resistance of the plastic is further improved; the plastic has good heat resistance by adding the antioxidant and the silicon dioxide, has the characteristics of light weight, stable chemical property and the like, and improves the thermoplasticity of the plastic; the plastic has higher toughness, high hardness, good impact resistance and obviously enhanced impact toughness by adding the plasticizer;

through setting up clamping mechanism for rotate the rotation handle and drive first threaded rod and rotate, drive the sliding plate downstream on the slide bar, thereby drive the clamp plate through expanding spring and press from both sides tightly the former block pipe, make the former block pipe remain stable when cutting, improve cutting accuracy.

Through setting up elevating system for elevator motor drive second threaded rod rotates, thereby drives two first sliding seat and is close to each other or keeps away from, cooperates two connecting rods to drive the limiting plate and do the ascending motion of vertical side in the lifter chamber, thereby makes the cutting means on the lifter plate realize going up and down, satisfies the cutting demand of unidimensional former feed tube, and application scope is wider, and the practicality is higher.

Through setting up cutting mechanism for cutting motor drive cutting roller rotates and prepares the cutting, rotates through removal motor drive third threaded rod simultaneously, drives the third sliding seat and slides on the third threaded rod, drives the motor room through the bracing piece and slides on the horizontal direction and be feed motion, cuts the former feed pipe.

Drawings

The invention is described in further detail below with reference to the figures and specific embodiments.

FIG. 1 is a flow chart of the preparation of a polypropylene modified plastic with high thermoplastic and corrosion resistance according to the invention;

FIG. 2 is a schematic structural view of the blanking device of the present invention;

FIG. 3 is a schematic view of the clamping mechanism of the present invention;

FIG. 4 is a schematic structural view of the lift mechanism of the present invention;

FIG. 5 is a top view of the internal structure of the mobile chamber of the present invention;

fig. 6 is a top view of the internal structure of the motor chamber of the present invention.

In the figure: 1. a work table; 2. a clamping mechanism; 3. a lifting mechanism; 4. a cutting mechanism; 101. supporting legs; 102. a support plate; 103. a separator plate; 201. a first fixing plate; 202. a second fixing plate; 203. a threaded seat; 204. a first threaded rod; 205. rotating the handle; 206. a slide bar; 207. a sliding plate; 208. a tension spring; 209. a clamping plate; 301. a lifting chamber; 302. a lifting motor; 303. a second threaded rod; 304. a first sliding seat; 305. a first slider; 306. a lifting plate; 307. a support base; 308. a limiting plate; 309. a second sliding seat; 310. a connecting rod; 401. a mobile chamber; 402. a moving motor; 403. a third threaded rod; 404. a third sliding seat; 405. a third slider; 406. a support bar; 407. a motor chamber; 408. rotating the rod; 409. a cutting roller; 410. cutting the motor; 411. a driving spur gear; 412. a driven spur gear.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Example 1

A preparation method of polypropylene modified plastic with high thermoplasticity and corrosion resistance comprises the following steps:

s1, weighing the raw materials;

s2, placing the polypropylene resin, the polypropylene, the polyvinyl alcohol, the methyl methacrylate, the magnesium stearate, the polyethylene wax and the silicon dioxide into a stirrer to be stirred to obtain a first mixture;

s3, placing the filler, the plasticizer, the antioxidant and the flame retardant into a high-speed stirrer to be stirred to obtain a second mixture;

and S4, mixing the first mixture and the second mixture, adding the mixture into a double-screw extruder, extruding to obtain a raw material pipe, and cutting the raw material pipe into granules through a cutting device to obtain the high-thermoplasticity corrosion-resistant polypropylene modified plastic.

Step S1 includes the following raw materials by weight: 60 parts of polypropylene resin, 15 parts of polypropylene, 10 parts of polyvinyl alcohol, 3 parts of methyl methacrylate, 4 parts of magnesium stearate, 2 parts of polyethylene wax, 2 parts of silicon dioxide, 105 parts of filler, 2 parts of plasticizer, 3 parts of antioxidant and 4 parts of flame retardant.

In step S2, the stirring speed of the stirrer is 300r/min, the stirring temperature is 180 ℃, and the stirring time is 30 min.

In step S3, the stirring speed of the high-speed stirrer is 800r/min, the stirring temperature is 150 ℃, and the stirring time is 20 min.

In the step S4, the processing temperature of the double-screw extruder is 170 ℃, and the rotating speed of the main machine is 300 r/min.

The plasticizer is dibutyl phthalate.

The filler is one or more of calcium carbonate, silicon dioxide, talcum powder, barium sulfate and wollastonite which are mixed in any proportion.

The preparation method of the flame retardant comprises the following steps: weighing 15 parts by weight of triethyl phosphate, 18 parts by weight of melamine, 25 parts by weight of chlorinated paraffin and 30 parts by weight of magnesium hydroxide, mixing and dispersing by using ultrasonic waves, and stirring to obtain the flame retardant.

Example 2

A preparation method of polypropylene modified plastic with high thermoplasticity and corrosion resistance comprises the following steps:

s1, weighing the raw materials;

s2, placing the polypropylene resin, the polypropylene, the polyvinyl alcohol, the methyl methacrylate, the magnesium stearate, the polyethylene wax and the silicon dioxide into a stirrer to be stirred to obtain a first mixture;

s3, placing the filler, the plasticizer, the antioxidant and the flame retardant into a high-speed stirrer to be stirred to obtain a second mixture;

and S4, mixing the first mixture and the second mixture, adding the mixture into a double-screw extruder, extruding to obtain a raw material pipe, and cutting the raw material pipe into granules through a cutting device to obtain the high-thermoplasticity corrosion-resistant polypropylene modified plastic.

Step S1 includes the following raw materials by weight: 65 parts of polypropylene resin, 22 parts of polypropylene, 11 parts of polyvinyl alcohol, 5 parts of methyl methacrylate, 5 parts of magnesium stearate, 3 parts of polyethylene wax, 3 parts of silicon dioxide, 12 parts of filler, 3 parts of plasticizer, 4 parts of antioxidant and 5 parts of flame retardant.

In step S2, the stirring speed of the stirrer is 350r/min, the stirring temperature is 200 ℃, and the stirring time is 40 min.

In step S3, the stirring speed of the high-speed stirrer is 900r/min, the stirring temperature is 160 ℃, and the stirring time is 25 min.

In the step S4, the processing temperature of the double-screw extruder is 210 ℃, and the rotating speed of the main machine is 300 r/min.

The plasticizer is dibutyl phthalate.

The filler is one or more of calcium carbonate, silicon dioxide, talcum powder, barium sulfate and wollastonite which are mixed in any proportion.

The preparation method of the flame retardant comprises the following steps: 17 parts of triethyl phosphate, 19 parts of melamine, 30 parts of chlorinated paraffin and 35 parts of magnesium hydroxide in parts by weight are weighed, mixed and dispersed by ultrasonic waves, and then stirred to prepare the flame retardant.

Example 3

A preparation method of polypropylene modified plastic with high thermoplasticity and corrosion resistance comprises the following steps:

s1, weighing the raw materials;

s2, placing the polypropylene resin, the polypropylene, the polyvinyl alcohol, the methyl methacrylate, the magnesium stearate, the polyethylene wax and the silicon dioxide into a stirrer to be stirred to obtain a first mixture;

s3, placing the filler, the plasticizer, the antioxidant and the flame retardant into a high-speed stirrer to be stirred to obtain a second mixture;

and S4, mixing the first mixture and the second mixture, adding the mixture into a double-screw extruder, extruding to obtain a raw material pipe, and cutting the raw material pipe into granules through a cutting device to obtain the high-thermoplasticity corrosion-resistant polypropylene modified plastic.

Step S1 includes the following raw materials by weight: 70 parts of polypropylene resin, 30 parts of polypropylene, 12 parts of polyvinyl alcohol, 8 parts of methyl methacrylate, 6 parts of magnesium stearate, 4 parts of polyethylene wax, 4 parts of silicon dioxide, 15 parts of filler, 4 parts of plasticizer, 5 parts of antioxidant and 6 parts of flame retardant.

In step S2, the stirring speed of the stirrer is 400r/min, the stirring temperature is 230 ℃, and the stirring time is 50 min.

In step S3, the stirring speed of the high-speed stirrer is 1000r/min, the stirring temperature is 170 ℃, and the stirring time is 30 min.

In the step S4, the processing temperature of the double-screw extruder is 260 ℃, and the rotating speed of the main machine is 300 r/min.

The plasticizer is dibutyl phthalate.

The filler is one or more of calcium carbonate, silicon dioxide, talcum powder, barium sulfate and wollastonite which are mixed in any proportion.

The preparation method of the flame retardant comprises the following steps: weighing 20 parts by weight of triethyl phosphate, 20 parts by weight of melamine, 35 parts by weight of chlorinated paraffin and 40 parts by weight of magnesium hydroxide, mixing and dispersing by using ultrasonic waves, and stirring to obtain the flame retardant.

Referring to fig. 1-6, the cutting device in the above embodiment includes a workbench 1, wherein symmetrically distributed support legs 101 are fixed at four corners of the bottom of the workbench 1, symmetrically distributed support plates 102 are fixed at two ends of the upper surface of the workbench 1, two symmetrically distributed isolation plates 103 are fixed on the upper surface of the workbench 1, a cutting groove is formed at a position close to the middle of the top end of the isolation plate 103, and the support plates 102 and the isolation plates 103 divide the upper surface of the workbench 1 into three regions for dividing a raw material pipe into three parts for cutting respectively, so as to improve cutting efficiency;

two ends of the workbench 1 are provided with symmetrically distributed clamping mechanisms 2, and the clamping mechanisms 2 are used for clamping a raw material pipe above the workbench 1;

the two sides of the workbench 1 are provided with symmetrically distributed lifting mechanisms 3 near the middle part, and the lifting mechanisms 3 are used for lifting the cutting tool so that the cutting tool moves downwards to the cutting position of the raw material pipe;

a cutting mechanism 4 is arranged above the lifting mechanism 3, and the cutting mechanism 4 is used for driving a cutting tool to perform feeding motion in the horizontal direction so as to cut the raw material pipe;

the clamping mechanism 2 comprises two first fixing plates 201 which are symmetrically distributed, the two first fixing plates 201 are respectively fixed with the tops of the two support plates 102, a second fixing plate 202 is fixed between the tops of the two first fixing plates 201, a threaded seat 203 is fixed on the top of the second fixing plate 202, a first threaded rod 204 penetrates through the interior of the threaded seat 203, the first threaded rod 204 is in threaded connection with the threaded seat 203, a rotating handle 205 is fixed on the top of the first threaded rod 204, the bottom end of the first threaded rod 204 penetrates through the second fixing plate 202 and is rotatably connected with the second fixing plate 202, sliding rods 206 which are symmetrically distributed are fixed at two ends of the bottom of the second fixing plate 202, a limiting block is fixed at the bottom end of each sliding rod 206, a sliding plate 207 is slidably connected between the two sliding rods 206, and the bottom end of the first threaded rod 204 is rotatably connected with the tops of the sliding plates 207.

A plurality of uniformly distributed telescopic springs 208 are fixed at the bottom of the sliding plate 207, and a clamping plate 209 is fixed between the bottom ends of the plurality of telescopic springs 208; through setting up clamping mechanism 2 for rotating handle 205 and driving first threaded rod 204 and rotate, drive sliding plate 207 downstream on slide bar 206, thereby drive clamp plate 209 through expanding spring 208 and press from both sides tightly the former block pipe, make the former block pipe remain stable when cutting, improve cutting accuracy.

The lifting mechanism 3 comprises a lifting chamber 301 fixed with the side wall of the supporting plate 102, a lifting motor 302 is fixed on one side wall of the outside of the lifting chamber 301, a second threaded rod 303 is fixed at the output end of the lifting motor 302, the second threaded rod 303 penetrates through the lifting chamber 301 and is rotatably connected with the inner wall of the lifting chamber 301, positive threads and reverse threads are respectively arranged at two ends of the outer surface of the second threaded rod 303, first sliding seats 304 which are symmetrically distributed are respectively sleeved on the positive threads and the reverse threads, the two first sliding seats 304 are respectively in threaded connection with the positive threads and the reverse threads, a first sliding block 305 is fixed at the bottom of each first sliding seat 304, and the bottom of each first sliding block 305 is in sliding connection with the inner bottom end of the lifting chamber 301;

the top of lift chamber 301 runs through and is equipped with the lifter plate 306 with lift chamber 301 sliding connection, be fixed with between the top of lifter plate 306 among two elevating system 3 and support base 307, the bottom mounting of lifter plate 306 has limiting plate 308, limiting plate 308's bottom both ends sliding connection has the second sliding seat 309 of symmetric distribution, the bottom of two second sliding seats 309 respectively with be connected with the connecting rod 310 of symmetric distribution between the top of two first sliding seats 304, the both ends of connecting rod 310 respectively with second sliding seat 309 and first sliding seat 304 hinged joint and two connecting rod 310 crossing arrangement. Through setting up elevating system 3 for elevator motor 302 drive second threaded rod 303 rotates, thereby drives two first sliding seat 304 and is close to each other or keep away from, cooperates two connecting rods 310 to drive limiting plate 308 and is the ascending motion of vertical direction in lift chamber 301, thereby makes the cutting means on the lifter plate 306 realize going up and down, satisfies the cutting demand of unidimensional former feed tube, and application scope is wider, and the practicality is higher.

The cutting mechanism 4 comprises a moving chamber 401 fixed with the upper surface of a supporting base 307, a moving motor 402 is fixed on one end wall of the outside of the moving chamber 401, a third threaded rod 403 is fixed at the output end of the moving motor 402, the third threaded rod 403 penetrates through the moving chamber 401 and is rotatably connected with the inner wall of the moving chamber 401, a third sliding seat 404 is sleeved on the outer surface of the third threaded rod 403, the third sliding seat 404 is in threaded connection with the third threaded rod 403, a third sliding block 405 is fixed at the top end of the third sliding seat 404, the top of the third sliding block 405 is in sliding connection with the top end of the inside of the moving chamber 401, two symmetrically distributed supporting rods 406 are fixed at the bottom of the third sliding seat 404, a sliding groove is formed in one side of the moving chamber 401 in a penetrating manner, and one end of each supporting rod 406, which is far away from the third sliding seat 404, penetrates through the sliding groove and is fixed with a motor chamber 407;

the inside of motor room 407 is equipped with dwang 408, the one end of dwang 408 is rotated with the inner wall of motor room 407 and is connected, the other end of dwang 408 passes motor room 407 and is fixed with cutting roller 409, cutting roller 409 is located directly over the cutting groove, the inner wall of motor room 407 is fixed with cutting motor 410, the output of cutting motor 410 is fixed with driving spur gear 411, the surface mounting of dwang 408 has driven spur gear 412, driving spur gear 411 meshes with driven spur gear 412 mutually. Through setting up cutting mechanism 4 for cutting motor 410 drive cutting roller 409 rotates and prepares for the cutting, drives third threaded rod 403 through moving motor 402 simultaneously and rotates, drives third sliding seat 404 and slides on third threaded rod 403, drives motor chamber 407 through bracing piece 406 and slides on the horizontal direction and be feed motion, cuts the former block pipe.

The working principle is as follows:

when the device is used, a raw material tube is firstly placed on the upper surface of a workbench 1 and divided into three parts through a partition plate 103, a rotating handle 205 is rotated to drive a first threaded rod 204 to rotate, and the first threaded rod 204 is connected with a threaded seat 203 through threads of the first threaded rod 204, so that the first threaded rod 204 pushes a sliding plate 207 to move downwards on a sliding rod 206, and a clamping plate 209 is driven by a telescopic spring 208 to clamp the raw material tube;

the lifting motor 302 is started, the output end of the lifting motor is driven to drive the second threaded rod 303 to rotate, the two first sliding seats 304 are driven to mutually approach or separate through the threaded connection of the positive threads and the negative threads on the first sliding seats 304 and the second threaded rod 303, and the two connecting rods 310 are matched to drive the limiting plate 308 to move in the lifting chamber 301 in the vertical direction, so that the cutting roller 409 is lifted and moved to a position, needing to be cut, on the raw material pipe;

start cutting motor 410, drive its output and drive initiative spur gear 411 and rotate, thereby it rotates to drive the driven spur gear 412 with it meshing, driven spur gear 412 drives dwang 408 and rotates, thereby it prepares the cutting to drive cutting roller 409 rotation, start moving motor 402 and drive its output and drive third threaded rod 403 and rotate, threaded connection through third threaded rod 403 and third sliding seat 404, it slides on third threaded rod 403 to drive third sliding seat 404, thereby it is feed motion to cut the former feed pipe to drive motor chamber 407 through bracing piece 406 and slide on the horizontal direction, accomplish the cutting process.

In the description of the present invention, it is to be understood that the terms "upper", "lower", "left", "right", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are only for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation and a specific orientation configuration and operation, and thus, should not be construed as limiting the present invention. Furthermore, "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless otherwise specified.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and the like are to be construed broadly and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be directly connected or indirectly connected through an intermediate member, or they may be connected through two or more elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

While one embodiment of the present invention has been described in detail, the description is only a preferred embodiment of the present invention and should not be taken as limiting the scope of the invention. All equivalent changes and modifications made within the scope of the present invention shall fall within the scope of the present invention.