1. The utility model provides a food printing equipment for packing, includes chassis (1), mounting bracket (2), mount (3), driving motor (4) and printing roller (5), its characterized in that: the automatic painting and drying machine is characterized in that two conveying mechanisms (6) are symmetrically arranged in the chassis (1), each conveying mechanism (6) comprises a driving roller, a driven roller and a conveying belt wrapped on the driving roller and the driven roller, a transmission rod (7) is connected to each driving roller, two first belt discs (8) are fixedly mounted on an output shaft of the driving motor (4), two transmission rods (7) are far away from one end of each conveying mechanism (6) and are respectively provided with a second belt disc (9) matched with the first belt discs (8), a pigment box (15) is mounted on the top wall of the mounting rack (2), a cam (17) is fixedly mounted on an output shaft of the driving motor (4), a reciprocating pressurizing coating mechanism is mounted between the pigment box (15) and the driving motor (4), a shunt pipe (21) is mounted on the mounting rack (2), and a quick air drying mechanism is mounted between the shunt pipe (21) and the driving motor (4), the loading plate (26) is installed in the bottom frame (1), the two loading plates (26) are located between the two conveying mechanisms (6), and a height adjusting mechanism is arranged between the loading plates (26) and the bottom frame (1).

2. The food printing and packaging device of claim 1, wherein: reciprocal pressurization coating mechanism is including installing first piston cylinder (10) on mount (3), first piston cylinder (10) are close to cam (17) one end movable mounting has first piston rod (11), first piston rod (11) are kept away from and are connected with first reset spring (12) between cam (17) one end and first piston cylinder (10) inner wall, be connected with first connecting pipe (13) between pigment case (15) and first piston cylinder (10), pigment case (15) diapire equidistance is installed a plurality of material loading pipes (14), and is a plurality of material loading pipe (14) are kept away from pigment case (15) one end and are installed sponge material loading frame (16) jointly, and sponge material loading frame (16) hug closely on the outer wall of printing roller (5).

3. The food printing and packaging device of claim 1, wherein: quick air-dry mechanism is including installing a plurality of air-dry pipes (24) on shunt tubes (21) diapire, and air-dry pipe (24) run through the outer wall of mounting bracket (2), install second piston cylinder (18) on mount (3), second piston cylinder (18) are close to cam (17) one end movable mounting and have second piston rod (19), cam (17) one end and second piston cylinder (18) inner wall are kept away from in second piston rod (19) and are connected with second reset spring (20), be connected with second connecting pipe (22) between second piston cylinder (18) and shunt tubes (21).

4. A food printing and packaging apparatus as claimed in claim 3, wherein: the shunt pipe (21) is internally provided with a heating wire (23), and the air drying pipe (24) is in an inverted Y shape.

5. The food printing and packaging device of claim 1, wherein: the height adjustment mechanism comprises a plurality of spring rods (25) mounted between the carrier plate (26) and the chassis (1), a threaded pipe (28) is fixedly arranged on the bottom wall of the carrying plate (26), a threaded rod (29) matched with the threaded pipe (28) is inserted on the bottom wall of the underframe (1) in a rotating and penetrating way, an installation cover is fixedly arranged on the bottom wall of the bottom frame (1), a rotating rod (30) is inserted on the outer wall of the installation cover in a rotating way, a first gear (31) is fixedly arranged at one end of the rotating rod (30) close to the threaded rod (29), a second gear (32) matched with the first gear (31) is arranged at the bottom end of the threaded rod (29), the first gear (31) and the second gear (32) are both bevel gears, two rotating plates (27) are symmetrically and rotatably mounted on two sides of the object carrying plate (26), and the two rotating plates (27) are both wedge-shaped.

6. A food printing and packaging apparatus as claimed in claim 5, wherein: the utility model discloses a visual inspection tool, including chassis (1), fixed mounting has transparent scale plate (34) in observation hole (33), threaded pipe (28) are close to on the lateral wall of observation hole (33) fixed mounting have linkage pointer pole (35), observation hole (33) have been seted up on the lateral wall of chassis (1).

Background

Machines for printing text and images. Modern printing machines are generally composed of mechanisms for plate loading, inking, stamping, paper feeding, etc. The working principle is as follows: the characters and images to be printed are made into printing plates, the printing plates are arranged on a printing machine, then ink is coated on the positions, where the characters and images are arranged, of the printing plates by a person or the printing machine, and then the printing plates are directly or indirectly transferred to paper or other printing materials, so that the same printed matters as the printing plates are copied, and in the process of producing food, the outer walls of the packaging boxes for the food need to be printed.

In a conventional patent (publication number: CN109049966A), a food printing and packaging apparatus, wherein two ends of a supporting mechanism are symmetrically provided with a conveying mechanism, and in the using process, a food packaging bag slides between a protecting mechanism and the conveying mechanism, wherein the two conveying mechanisms are driven by separate motors; adding a proper amount of printing ink into the water tank through a feeding hopper, and uniformly feeding the printing ink into each spray head; the other end of shower nozzle stretches into the inside of second foam-rubber cushion, make the even inside that gets into the second foam-rubber cushion of printing ink, along with the rotation of a printing section of thick bamboo, a printing section of thick bamboo contacts with the lateral wall of second foam-rubber cushion, make printing ink paint the lateral wall at a printing section of thick bamboo, a printing section of thick bamboo continues to rotate and a plurality of first foam-rubber cushion contacts, a printing section of thick bamboo promotes first foam-rubber cushion and rotates, and the lateral wall contact of a first foam-rubber cushion and a printing section of thick bamboo, make the printing ink of a printing section of thick bamboo lateral wall is paintd to first foam-rubber cushion, make printing ink evenly distributed at the lateral wall of a printing section of thick bamboo.

Although the above invention achieves uniform ink distribution, it has certain problems:

1. two transport mechanism all adopt solitary motor to drive, and the printing roller also need set up driving motor alone, leads to the actuating mechanism in this equipment more, has not only increased the cost, and a plurality of driving motor also make the noise of equipment when moving too big, and secondly a plurality of motors need the rotational speed the same also be convenient for control.

2. The ink flows into the spray head by utilizing the gravity of the ink, and is sprayed into the spongy cushion by the spray head, so that the uniform feeding effect is very poor, the ink is thick and has slow flow rate, the ink is contacted with air for a long time, the ink is dehydrated quickly, the flow rate of the ink is further slowed down, and the pipeline is seriously blocked; secondly the packing carton need carry out drying process to its printing face after the printing finishes, and generally printing and stoving need two different equipment to handle to reduce the efficiency of production, more increased the cost of production.

3. The distance between the fixed table and the printing roller is fixed, so that the thickness of the package box which can be printed is also certain, and the flexibility of the equipment is reduced.

Therefore, the food printing and packaging equipment is provided.

Disclosure of Invention

The invention aims to provide food printing and packaging equipment, wherein a driving motor drives two conveying mechanisms to complete operation through belt transmission while a printing roller rotates, so that a single driving mechanism drives the whole equipment to complete operation; secondly, the cam on the output shaft of the driving motor is used for pushing the first piston rod and the second piston rod to reciprocate so as to respectively complete uniform feeding and quick drying; moreover, the distance between the object carrying plate and the printing roller is adjusted by utilizing the gear transmission and the screw thread transmission, so that the equipment can adjust the distance according to the packaging boxes with different thicknesses, and the problems in the background art are solved through the schemes.

In order to achieve the purpose, the invention provides the following technical scheme:

a food printing and packaging device comprises a bottom frame, a mounting frame, a fixing frame, a driving motor and a printing roller, wherein two conveying mechanisms are symmetrically arranged in the bottom frame and respectively comprise a driving roller, a driven roller and a conveying belt wrapped on the driving roller and the driven roller, the two driving rollers are respectively connected with a transmission rod, two first belt discs are fixedly mounted on an output shaft of the driving motor, one ends of the two transmission rods, far away from the conveying mechanisms, are respectively provided with a second belt disc matched with the first belt discs, a pigment box is mounted on the top wall of the mounting frame, a cam is fixedly mounted on an output shaft of the driving motor, a reciprocating pressurizing coating mechanism is mounted between the pigment box and the driving motor, a flow dividing pipe is mounted on the mounting frame, a quick air drying mechanism is mounted between the flow dividing pipe and the driving motor, and a carrying plate is mounted in the bottom frame, and the two carrying plates are positioned between the two conveying mechanisms, and a height adjusting mechanism is arranged between the carrying plates and the underframe.

The printing roller is driven to rotate by the driving motor, the two first belt pulleys are driven to rotate by an output shaft of the driving motor, a belt is arranged between the first belt pulley and the second belt pulley which are matched, and the two second belt pulleys are driven to rotate by belt transmission, so that the two conveying mechanisms are driven to operate, the operation of the whole equipment is completed by a single driving mechanism, the stability of the operation of the equipment is improved, and the printing quality is improved; the discharging is more uniform through reciprocating pressurization, so that the coating on the printing roller is more uniform, and the printing quality is improved; the printed packaging box is dried in time through the quick air drying mechanism, so that the production efficiency is improved, and the production quality is also improved; adjust the height of carrying the thing board through high adjustment mechanism to the interval of carrying thing board and printing roller is adjusted, thereby adapts to the packing carton of different thickness, thereby has improved lithography apparatus's flexibility, has also improved the quality of printing.

Preferably, reciprocal pressurization coating mechanism is including installing the first piston cylinder on the mount, first piston cylinder is close to cam one end movable mounting has a first piston rod, first piston rod is kept away from and is connected with first reset spring between cam one end and the first piston cylinder inner wall, be connected with first connecting pipe between pigment case and the first piston cylinder, a plurality of material loading pipes are installed to equidistance on the pigment case diapire, and is a plurality of material loading pipe keeps away from pigment case one end and installs sponge material loading frame jointly, and sponge material loading frame hugs closely on the outer wall of printing roller.

The driving motor drives the cam to rotate, the cam can push the first piston rod when rotating, the first piston rod is pressed into the first piston cylinder, the first return spring is compressed and deformed, air in the first piston cylinder is pressed into the pigment box, the pressure in the pigment box is increased, the pigment box is movably provided with a piston plate, when the upper part of the pigment box is acted by air pressure, the piston plate is pressed downwards to extrude the pigment, the pigment enters the sponge feeding frame through the feeding pipe, the pigment gradually enters the sponge, after the first piston rod loses the thrust action of the cam, the first piston rod is restored to the original position under the elastic force action of the first return spring, the first piston cylinder is provided with a one-way valve, so that external air can only enter the first piston cylinder and can not be discharged, and when the first piston rod restores to the position, the air pressure in the first piston cylinder is restored, the cam and the first return spring are matched with each other, so that reciprocating uniform feeding is realized, and the printing quality is improved.

Preferably, quick air-dry mechanism is including installing a plurality of air-dry pipes on the shunt tubes diapire, and air-dry the outer wall that the pipe runs through the mounting bracket, install the second piston cylinder on the mounting bracket, the second piston cylinder is close to cam one end movable mounting has the second piston rod, the second piston rod is kept away from and is connected with second reset spring between cam one end and the second piston cylinder inner wall, be connected with the second connecting pipe between second piston cylinder and the shunt tubes.

Promote the second piston rod during cam rotation, the second piston rod presses the air in the second piston cylinder into the shunt tubes, it discharges from a plurality of air-drying pipes to form the air current, second reset spring is compressed deformation this moment, treat that the second piston rod loses the thrust effect back of cam, the second piston rod resumes the position under second reset spring's elastic force effect, thereby realize reciprocal purpose of blowing, and then timely carry out quick air-drying to the packing carton after the printing finishes, the efficiency of production is improved, the quality of production has also been improved.

Preferably, the shunt pipe is internally provided with a heating wire, and the air drying pipe is in an inverted Y shape.

The air drying pipe is arranged to be inverted Y-shaped, the air drying area can be enlarged, the air drying efficiency is improved, the heating effect of the heating wire is matched, the temperature of blown air is higher, the air drying efficiency is further improved, and the production efficiency and quality are further improved.

Preferably, height adjusting mechanism is including installing a plurality of spring levers between year thing board and chassis, fixed mounting has the screwed pipe on the diapire of year thing board, it has the threaded rod with screwed pipe matched with to rotate the interlude on the diapire of chassis, fixed mounting has the installation cover on the diapire of chassis, it has the dwang to rotate the interlude on the outer wall of installation cover, the dwang is close to threaded rod one end fixed mounting and has first gear, the threaded rod bottom install with first gear matched with second gear, first gear and second gear are bevel gear, it installs two rotor plates to carry thing board bilateral symmetry to rotate, and two rotor plates all are the wedge.

The dwang rotates, the dwang drives first gear revolve, first gear drives second gear revolve, second gear threaded rod rotates, the threaded rod when rotating and the screwed pipe between the screw thread meshing effect can drive the screwed pipe and reciprocate, thereby realize carrying the altitude mixture control of thing board, thereby adjust the interval that highly changes year thing board and printing roller of carrying the thing board, the rotor plate of both sides passes through the action of gravity laminating on two transport mechanism, can be after carrying thing board height-adjusting, conveniently realize carrying the thing board with the packing carton from carrying the thing board guide to carrying the thing board, not only can adapt to the packing carton of different thickness like this, printing roller is to the pressure of packing carton when can also adjusting the printing, thereby the flexibility and the quality of printing have been improved.

Preferably, an observation hole is formed in the outer side wall of the bottom frame, a transparent scale plate is fixedly mounted in the observation hole, and a linkage pointer rod is fixedly mounted on the outer side wall, close to the observation hole, of the threaded pipe.

When the threaded pipe is lifted, the linkage finger needle rod can be driven to move up and down together, and the linkage finger needle rod moves up and down to be matched with the transparent scale plate to observe the moving height, so that the adjusting precision is improved, and the printing quality is further improved.

Compared with the prior art, the invention has the beneficial effects that:

1. the driving motor drives the two conveying mechanisms to complete operation through belt transmission when driving the printing roller to rotate, a plurality of driving devices are avoided, production cost is reduced, the device can run more stably, and printing quality is improved.

2. Reciprocating pressure action through the cam comes to carry out the pressure boost to paintbox and shunt tubes respectively to accomplish the reciprocal even material loading of paintbox and the reciprocal of air-dry tube respectively and blow, thereby improved the quality of printing and holistic production efficiency.

3. The height of carrying the thing board is adjusted through rotating the dwang and driving gear drive and screw thread transmission to realize adjusting the interval of carrying thing board and printing roller, and then can carry out nimble adjustment according to the packing carton of different thickness, improved the flexibility of equipment, also improved the quality of printing.

Drawings

FIG. 1 is a schematic view of a driving part according to the present invention;

FIG. 2 is a front cross-sectional view of the present invention;

FIG. 3 is a top view of the present invention;

FIG. 4 is a side cross-sectional view of the chassis and mount section of the present invention;

FIG. 5 is an enlarged view of part A of the structure of the present invention;

FIG. 6 is an enlarged view of the structure of part B of the present invention;

fig. 7 is an enlarged view of the structure of part C of the present invention.

In the figure: 1. a chassis; 2. a mounting frame; 3. a fixed mount; 4. a drive motor; 5. a printing roller; 6. a transport mechanism; 7. a transmission rod; 8. a first belt pulley; 9. a second belt reel; 10. a first piston cylinder; 11. a first piston rod; 12. a first return spring; 13. a first connecting pipe; 14. feeding pipes; 15. a paint box; 16. a sponge feeding frame; 17. a cam; 18. a second piston cylinder; 19. a second piston rod; 20. a second return spring; 21. a shunt tube; 22. a second connecting pipe; 23. heating wires; 24. an air-drying pipe; 25. a spring lever; 26. a loading plate; 27. a rotating plate; 28. a threaded pipe; 29. a threaded rod; 30. rotating the rod; 31. a first gear; 32. a second gear; 33. an observation hole; 34. a transparent scale plate; 35. the linkage is the needle bar.

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.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", and the like, indicate orientations and positional relationships based on those shown in the drawings, and are used only for convenience of description and simplicity of description, and do not indicate or imply that the mechanism or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be considered as limiting the present invention.

Furthermore, the terms "first", "second" and "first" 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, features defined as "first", "second", may explicitly or implicitly include one or more of the described features. In the description of the present invention, "a plurality" means two or more unless specifically defined otherwise. Furthermore, the terms "mounted," "connected," and "connected" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Referring to fig. 1 to 7, the present invention provides a food printing and packaging apparatus, which has the following technical scheme:

the utility model provides a food printing equipment for packing, including chassis 1, mounting bracket 2, mount 3, driving motor 4 and printing roller 5, the symmetry is equipped with two transport mechanism 6 in the chassis 1, two transport mechanism 6 include the drive roll, driven voller and the conveyer belt of parcel on drive roll and driven voller, all be connected with transfer line 7 on two drive rolls, fixed mounting has two first belt pulleys 8 on driving motor 4's the output shaft, 6 one end of keeping away from transport mechanism of two transfer lines 7 is installed respectively with 8 matched with second belt pulleys 9 of first belt pulley.

Referring to fig. 3, driving motor 4 drives printing roller 5 and rotates, driving motor 4's output shaft drives two first belt pulleys 8 and rotates, be furnished with the belt between first belt pulley 8 of matched with and the second belt pulley 9, drive two second belt pulleys 9 through belt transmission and rotate, thereby drive two transport mechanism 6 operations, realize the operation of single actuating mechanism completion whole equipment, the stability of equipment operation has been improved, thereby the quality of printing has been improved.

Install paintbox 15 on the mounting bracket 2 roof, fixed mounting has cam 17 on the output shaft of driving motor 4, installs reciprocal pressurization coating mechanism between paintbox 15 and the driving motor 4.

The discharging is more uniform through reciprocating pressurization, so that the coating on the printing roller 5 is more uniform, and the printing quality is improved.

As an embodiment of the present invention, referring to fig. 1, 3 and 5, the reciprocating pressurized paint mechanism includes a first piston cylinder 10 mounted on the fixed frame 3, a first piston rod 11 is movably mounted at one end of the first piston cylinder 10 close to the cam 17, a first return spring 12 is connected between one end of the first piston rod 11 far from the cam 17 and an inner wall of the first piston cylinder 10, a first connecting pipe 13 is connected between the paint box 15 and the first piston cylinder 10, a plurality of feeding pipes 14 are equidistantly mounted on a bottom wall of the paint box 15, a sponge feeding frame 16 is commonly mounted at one end of the plurality of feeding pipes 14 far from the paint box 15, and the sponge feeding frame 16 is tightly attached to an outer wall of the printing roller 5.

The driving motor 4 drives the cam 17 to rotate, the cam 17 can push the first piston rod 11 when rotating, the first piston rod 11 is pressed into the first piston cylinder 10, the first return spring 12 is compressed and deformed, air in the first piston cylinder 10 is pressed into the pigment box 15, and the pressure in the pigment box 15 is increased, it is worth noting that the pigment box 15 is movably provided with a piston plate, when the upper part of the pigment box 15 is acted by air pressure, the piston plate is pressed downwards to extrude the pigment, so that the pigment enters the sponge feeding frame 16 through the feeding pipe 14, the pigment gradually enters the sponge, after the first piston rod 11 loses the thrust action of the cam 17, the first piston rod 11 is restored to the original position under the elastic force action of the first return spring 12, the first piston cylinder 10 is provided with a one-way valve, so that external air can only enter the first piston cylinder 10 and cannot be discharged, and when the first piston rod 11 is restored to the position, the air pressure in the first piston cylinder 10 is recovered, and the cam 17 and the first return spring 12 are matched with each other, so that the reciprocating uniform feeding is realized, and the printing quality is improved.

The mounting frame 2 is provided with a shunt pipe 21, and a quick air drying mechanism is arranged between the shunt pipe 21 and the driving motor 4.

The packaging box which is printed is dried in time through the quick air drying mechanism, so that the production efficiency is improved, and the production quality is also improved.

Referring to fig. 2 and 3, the quick air drying mechanism comprises a plurality of air drying pipes 24 installed on the bottom wall of the shunt pipe 21, the air drying pipes 24 penetrate through the outer wall of the mounting frame 2, a second piston cylinder 18 is installed on the mounting frame 3, a second piston rod 19 is movably installed at one end, close to the cam 17, of the second piston cylinder 18, a second return spring 20 is connected between one end, far away from the cam 17, of the second piston rod 19 and the inner wall of the second piston cylinder 18, and a second connecting pipe 22 is connected between the second piston cylinder 18 and the shunt pipe 21.

Promote second piston rod 19 when cam 17 rotates, second piston rod 19 presses the air in the second piston cylinder 18 into shunt tubes 21, it discharges from a plurality of air-drying pipes 24 to form the air current, second reset spring 20 is compressive deformation this moment, wait to second piston rod 19 and lose cam 17's thrust effect after, second piston rod 19 resumes the position under second reset spring 20's elasticity effect, thereby realize reciprocal purpose of blowing, and then timely carry out quick air-drying to the packing carton after the printing finishes, the efficiency of production is improved, the quality of production has also been improved.

Referring to fig. 2, a heating wire 23 is provided in the bypass pipe 21, and the air drying pipe 24 has an inverted "Y" shape.

The air drying pipe 24 is arranged to be inverted Y-shaped, the number of air outlets is increased, the air drying area can be enlarged, the air drying efficiency is improved, the heating effect of the upper heating wire 23 is matched, the temperature of blown air is higher, the air drying efficiency is further improved, and the production efficiency and quality are further improved.

The loading plate 26 is installed in the chassis 1, two loading plates 26 are positioned between the two conveying mechanisms 6, and a height adjusting mechanism is arranged between the loading plate 26 and the chassis 1.

The height of the loading plate 26 is adjusted through the height adjusting mechanism, so that the distance between the loading plate 26 and the printing roller 5 is adjusted, the packaging boxes with different thicknesses are adapted, the flexibility of the printing equipment is improved, and the printing quality is also improved.

Referring to fig. 4 and 6, as an embodiment of the present invention, the height adjusting mechanism includes a plurality of spring rods 25 installed between the object carrying plate 26 and the bottom frame 1, a threaded pipe 28 is fixedly installed on the bottom wall of the object carrying plate 26, a threaded rod 29 matched with the threaded pipe 28 is rotatably inserted into the bottom wall of the bottom frame 1, an installation cover is fixedly installed on the bottom wall of the bottom frame 1, a rotating rod 30 is rotatably inserted into the outer wall of the installation cover, a first gear 31 is fixedly installed at one end of the rotating rod 30 close to the threaded rod 29, a second gear 32 matched with the first gear 31 is installed at the bottom end of the threaded rod 29, the first gear 31 and the second gear 32 are both bevel gears, two rotating plates 27 are symmetrically rotatably installed at two sides of the object carrying plate 26, and both rotating plates 27 are wedge-shaped.

The spring rod 25 is composed of a telescopic rod and a spring, and automatically extends and retracts by matching with the height of the object carrying plate 26, the rotating rod 30 is rotated, the rotating rod 30 drives the first gear 31 to rotate, the first gear 31 drives the second gear 32 to rotate, the second gear 32 drives the threaded rod 29 to rotate, the threaded pipe 28 can be driven to move up and down by the thread meshing effect between the threaded rod 29 and the threaded pipe 28 when rotating, so as to realize the height adjustment of the carrier plate 26, thereby adjusting the height of the carrier plate 26 to change the distance between the carrier plate 26 and the printing roller 5, the rotating plates 27 at both sides are attached to the two conveying mechanisms 6 through the action of gravity, after the height of the carrier plate 26 is adjusted, the guiding of the packing boxes from the carrier plate 26 to the carrier plate 26 is conveniently realized, therefore, the printing roller can adapt to packaging boxes with different thicknesses, and the pressure of the printing roller 5 on the packaging boxes during printing can be adjusted, so that the printing flexibility and quality are improved.

Referring to fig. 7, as an embodiment of the present invention, an observation hole 33 is formed on an outer side wall of the chassis 1, a transparent scale plate 34 is fixedly installed in the observation hole 33, and a linkage pointer rod 35 is fixedly installed on an outer side wall of the threaded pipe 28 near the observation hole 33.

When the threaded pipe 28 is lifted up and down, the linkage finger rod 35 is driven to move up and down together, the linkage finger rod 35 moves up and down and is matched with the transparent scale plate 34, the moving height can be observed, and therefore the adjusting precision is improved, and the printing quality is further improved.

The working principle is as follows: drive motor 4 drives printing roller 5 and rotates, drive motor 4's output shaft drives two first belt pulleys 8 and rotates, be furnished with the belt between first belt pulley 8 of matched with and the second belt pulley 9, drive two second belt pulleys 9 through belt transmission and rotate, thereby drive two transport mechanism 6 operations, realize the operation that single actuating mechanism accomplished whole equipment, the stability of equipment operation has been improved, thereby the quality of printing has been improved.

The driving motor 4 drives the cam 17 to rotate, the cam 17 can push the first piston rod 11 when rotating, the first piston rod 11 is pressed into the first piston cylinder 10, the first return spring 12 is compressed and deformed, air in the first piston cylinder 10 is pressed into the paint box 15, the pressure in the paint box 15 is increased, so that the paint enters the sponge feeding frame 16 through the feeding pipe 14, the paint gradually enters the sponge, after the first piston rod 11 loses the thrust action of the cam 17, the first piston rod 11 is restored to the original position under the elastic force action of the first return spring 12, the first piston cylinder 10 is provided with a one-way valve, so that external air can only enter the first piston cylinder 10 and cannot be discharged, and therefore when the first piston rod 11 is restored to the position, the air pressure in the first piston cylinder 10 is restored, the cam 17 and the first return spring 12 are matched with each other, thereby realizing reciprocating and uniform feeding, improving the printing quality and the product quality; promote second piston rod 19 when cam 17 rotates, second piston rod 19 presses the air in the second piston cylinder 18 into shunt tubes 21, it discharges from a plurality of air-drying pipes 24 to form the air current, second reset spring 20 is compressive deformation this moment, wait to second piston rod 19 and lose cam 17's thrust effect after, second piston rod 19 resumes the position under second reset spring 20's elasticity effect, thereby realize reciprocal purpose of blowing, and then timely carry out quick air-drying to the packing carton after the printing finishes, the efficiency of production is improved, the quality of production has also been improved.

The rotating rod 30 is rotated, the rotating rod 30 drives the first gear 31 to rotate, the first gear 31 drives the second gear 32 to rotate, the second gear 32 is provided with the threaded rod 29 to rotate, the threaded rod 29 and the threaded pipe 28 can be driven to move up and down under the threaded meshing action when rotating, so that the height adjustment of the object carrying plate 26 is realized, the height of the object carrying plate 26 is adjusted to change the distance between the object carrying plate 26 and the printing roller 5, the rotating plates 27 on two sides are attached to the two conveying mechanisms 6 under the action of gravity, after the height of the object carrying plate 26 is adjusted, the packaging boxes are conveniently guided to the object carrying plate 26 from the object carrying plate 26, so that the packaging boxes with different thicknesses can be adapted, the pressure of the printing roller 5 on the packaging boxes during printing can be adjusted, the flexibility and the quality of printing are improved, the needle rod 35 can be driven to move up and down together under the linkage action when the threaded pipe 28 goes up and down, the linkage needle rod 35 moves up and down and is matched with the transparent scale plate 34 to observe the moving height, so that the adjustment precision is improved, and the printing quality is further improved.

The electric elements in the document are electrically connected with an external main controller and 220V mains supply through a transformer, the main controller can be a conventional known device controlled by a computer and the like, the product model provided by the invention is only used according to the structural characteristics of the product, the product can be adjusted and modified after being purchased, so that the product is more matched with and accords with the technical scheme of the invention, the product model is a technical scheme of the optimal application of the technical scheme, the product model can be replaced and modified according to the required technical parameters, and the product model is familiar to the technical personnel in the field, so that the technical scheme provided by the invention can clearly obtain the corresponding use effect.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.