A UV printing device for plastic product surface

Abstract

The present invention belongs to the field of printing technology, specifically a device for UV printing on the surface of plastic products, including a guide component, wherein the guide component has a guide top plate, the top of the inner cavity of the guide top plate is evenly provided with exhaust grooves, the lower surface of the guide top plate is fixedly connected to a support platform, the bottom of the inner wall of the support platform is evenly provided with piston push rods, and the bottom of the support platform is fixedly connected to a floor. When the printing press is in a continuous working state, the ink consumption is large. At this time, in order not to affect the working state of the printing press, the required dye can be provided to the printing press through the feeding equipment above, avoiding the problem of cumbersome manual feeding operation. Since each pigment cartridge can accurately control the input dye dosage by controlling the internal bidirectional torque motor, the device can add different proportions of ink materials according to the color of the consumed ink, thereby achieving the effect of not wasting or accumulating the dye.

Description

Technical Field

[0001] The invention belongs to the technical field of printing, in particular to a UV printing device for the surface of plastic products. Background Art

[0002] Currently, UV printing is gradually replacing traditional printing processes due to its rapid curing, high production efficiency, and lack of volatile substances, which does not cause environmental pollution. Current UV printing uses direct piezoelectric inkjet printing, where a mobile printhead is positioned above the surface of the plastic product to perform inkjet printing. UV ink is sprayed directly onto the surface of the plastic product, and then irradiated by LED lights on both sides of the printhead to achieve drying of the ink.

[0003] The current UV printing equipment has a high working efficiency. When printing simple patterns, the printing work can basically be completed by scanning in one time. Therefore, the ink consumption of the UV printer is large when it is working continuously, and it is necessary to add printing ink more frequently. Because the amount of ink consumed by the printed patterns is different during each printing process, manual operation is required to add ink materials in different proportions according to the color of the consumed ink. Therefore, the adding work becomes more cumbersome and needs to be improved. Summary of the Invention

[0004] In view of the shortcomings of the prior art, the present invention solves the technical problems thereof by adopting the following technical solutions: a UV printing device for the surface of plastic products, comprising a guide component, wherein the guide component has a guide top plate, the top of the inner cavity of the guide top plate is evenly provided with exhaust grooves, the lower surface of the guide top plate is fixedly connected to a support platform, the bottom of the inner wall of the support platform is evenly provided with piston push rods, the bottom of the support platform is fixedly connected to a floor, and when the piston push rod is pushed upward, exhaust is extruded upward through the exhaust grooves;

[0005] The upper surface of the guide top plate is provided with a control slide box, and the back of the control slide box is provided with a feeding device;

[0006] The feeding device includes a feeding device, the bottom end of the feeding device is plugged with a guide outer tube, the bottom end of the guide outer tube is fixedly connected to a distribution box, the end of the distribution box output shaft away from the guide outer tube is fixedly connected to the feeding device, the guide outer tube and the distribution box are both arranged on the back of the control slide box, and multiple groups of liquid drainage tracks are arranged inside the distribution box for adding the required dye to the feeding device;

[0007] The material passing device includes an arched slider, the top of the inner wall of the arched slider is fixedly connected to a guide inner plate, the bottom end of the guide inner plate is fixedly connected to a connecting pipe, and a rotary motor is symmetrically arranged at the bottom of the inner cavity of the arched slider. The top end of the rotary motor is connected to a friction ball through a roller for rotation. The guide inner plate has the effect of conveying dye and keeping the dye warm. The dye passes through the inner wall of the guide inner plate and is directly supplied to the printing machine through the connecting pipe grooves on both sides.

[0008] The feeding equipment includes a fixed clamp shell, the inner wall of which is rotatably connected to a hollow twist wheel, the inner cavity of the hollow twist wheel is fixedly connected to a compression hose on the side close to the control slide box, and the inner cavity of the hollow twist wheel is fixedly connected to a right-angle insert on the side away from the control slide box.

[0009] Furthermore, the control slide box includes a accommodating box shell, and paint cartridges are evenly inserted into the upper part of the inner cavity of the accommodating box shell. A bidirectional torque motor is fixedly connected to the middle part of the inner cavity of the paint cartridge, and both ends of the output shaft of the bidirectional torque motor are fixedly connected to a turbine rotating rod. The middle part of the inner cavity of the accommodating box shell is rotatably connected to a box door rotating plate. After removing the control slide box, the box door rotating plate at the bottom is opened to take out the internal paint cartridges, and a single color dye is added to the inside of each paint cartridge for storage and backup. When the turbine rotating rod rotates, the dye inside the paint cartridge can be transported to the outside through a compression hose.

[0010] Furthermore, the end of the compression hose away from the hollow twist wheel is fixedly connected to the back of the inner cavity of the accommodating box shell through a through-hole, and the end of the compression hose away from the hollow twist wheel extends to the interior of the paint tube, and the bottom end of the output shaft of the distribution box is fixedly connected to the back of the inner cavity of the guide inner plate, and printing machines are symmetrically arranged on both sides of the outer surface of the connecting tube.

[0011] Furthermore, the bottom end of the arched slider is slidably connected to one side of the inner wall of the support platform, the outer surface of the friction rotating ball is rollingly connected to the middle of the inner wall of the support platform through the median groove, the upper surface of the arched slider is plugged into the axis of the lower surface of the accommodating box shell, the bottom end of the piston push rod and the lower part of the outer surface of the arched slider are squeezed against each other, and the rotary motor twists the friction rotating ball, and the friction between the friction rotating ball and the sliding grooves on both sides of the middle of the support platform drives the control sliding box and the feeding equipment to slide along the guide top plate.

[0012] Furthermore, the number of the fixed clamp shells is seven groups, the front end of the fixed clamp shell is fixedly connected to the back of the outer surface of the containing box shell, both sides of the containing box shell are fixedly connected to the limiting shell, the inner wall of the limiting shell is fixedly connected to the deflection motor, and the output shaft of the deflection motor is fixedly connected to the axis center of the outer surface of the side hollow twist wheel.

[0013] Furthermore, the hollow twist wheel includes a slotted circular shell, a limiting clamping ring is fixedly connected to the middle of the inner cavity of the slotted circular shell, a modified sleeve is slidably connected to the axis center of the inner wall of the limiting clamping ring, and drainage grooves are evenly opened on the lower part of the inner cavity of the modified sleeve, a weak magnetic ring is fixedly connected to the bottom of the outer surface of the modified sleeve, and a closed end is fixedly connected to the top of the modified sleeve. The limiting clamping ring in the middle is made of metal material, and the modified sleeve can be simply fixed by adsorbing the weak magnetic ring. At this time, the dye can pass through the hollow twist wheel through the middle opening of the modified sleeve and the drainage groove passing through the limiting clamping ring, otherwise the dye will be blocked inside the slotted circular shell, and the external air will not be able to flow back into the paint tube through the slotted circular shell.

[0014] Furthermore, the number of the hollow twist wheels is seven groups, the outer surface of the hollow twist wheel is rotatably connected to the inner wall of the fixed clamp shell, the outer surface of the weak magnetic ring is plugged into the outer surface of the limit clamp close to the side of the control slide box, and the bottom end of the modified sleeve is slidably connected to the axis of the inner wall of the slotted circular shell.

[0015] Furthermore, support partitions are symmetrically arranged on both sides of the bottom of the inner wall of the containing box shell, and the upper surface of the support partition is fixedly connected to a balance meter, and pressure-sensitive plates are symmetrically arranged on both sides of the balance meter, and the lower surface of the pressure-sensitive plate is fixedly connected to a thrust spring, and the bottom end of the thrust spring is fixedly connected to a deflection plate, and one side of the deflection plate is rotatably connected to a fixed shaft rod.

[0016] Furthermore, the front and rear ends of the fixed shaft are fixedly connected to the inner cavity of the containing box shell, the top end of the thrust spring extends to the top of the support partition through the groove, one end of the pressure-sensitive plate extends to the interior of the balance instrument, and the bottom of the containing box shell is slidably connected to the upper surface of the guide top plate.

[0017] The beneficial effects of the present invention are as follows:

[0018] 1. This device can be used to perform UV printing on objects. When the printing press is in continuous working state, the ink consumption is large. At this time, in order not to affect the working state of the printing press, the required dye can be provided to the printing press through the feeding device above, avoiding the tedious problem of manual feeding operation. Since each pigment cartridge can accurately control the input dye dosage by controlling the internal bidirectional torque motor, the device can add different proportions of ink materials according to the color of the consumed ink, thereby achieving the effect of no waste or accumulation of the dye.

[0019] 2. When the device adds dye through the feeding equipment, the dye will not come into contact with oxygen in the air during the transportation process. Compared with the manual feeding operation, by preventing oxygen from directly entering the device, the dye inside the device will not change color or deteriorate due to oxidation, so that the dye can be stored inside the device for a longer time.

[0020] 3. When the right-angle insert is deflected and inserted into the top of the guide outer tube, the modified sleeve inside the hollow twist wheel will automatically slide due to centrifugal force, thereby opening the feed channel inside the hollow twist wheel, so that the dye can be smoothly transported to the printing press. After the right-angle insert is pulled out from the inside of the guide outer tube, the dye channel inside the hollow twist wheel will automatically close again, so external impurities will not flow back into the pigment tube through the opening of the right-angle insert, causing pollution to the dye in the pigment tube, and it has a certain intelligent effect.

[0021] 4. As the arched slider slides along the guide top plate, the gas is discharged upward through the exhaust grooves, and then acts on the deflection plates on both sides. The impact force of the airflow is fed back to the balance instrument through the pressure-sensitive plate, thereby judging the cooling effect of the current piston push rod jet, ensuring that the temperature inside the control slide box is low, thereby reducing the internal heat energy generated by self-heating when the device is working, and avoiding adverse effects such as deterioration of the dye inside the pigment tube caused by high temperature. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a front view of the present invention;

[0023] Figure 2 is a cross-sectional view of the present invention;

[0024] Figure 3 is a cross-sectional view of the control slide box of the present invention;

[0025] Figure 4 is a cross-sectional view of the feeding device of the present invention;

[0026] Figure 5 It is a cross-sectional view of the material passing device of the present invention;

[0027] Figure 6 It is a structural schematic diagram of the feeding equipment of the present invention;

[0028] Figure 7 is a top view of the feeding device of the present invention;

[0029] Figure 8 This is a schematic structural diagram of the right-angle cannula of the present invention before deflection;

[0030] Figure 9 is a cross-sectional view of the hollow twist wheel of the present invention;

[0031] Figure 10It is an enlarged view of the control slide box A of the present invention.

[0032] In the figure: 1. Guide component; 11. Guide top plate; 12. Exhaust groove; 13. Piston push rod; 14. Support platform; 15. Floor; 2. Control slide box; 21. Containment box shell; 22. Box door rotating plate; 23. Paint canister; 24. Bidirectional torque motor; 25. Turbine rotating rod; 26. Balancer; 27. Fixed shaft; 28. Deflection rotating plate; 29. ​​Thrust spring; 210. Pressure plate; 3. Feeding device; 31. Material passing device; 32. Material conveying device; 33. Guide Outer guide tube; 34, material distribution box; 311, arched slider; 312, guide inner plate; 313, connecting pipe; 314, printing press; 315, rotary motor; 316, friction ball; 321, fixed clamp shell; 322, deflection motor; 323, compression hose; 324, right-angle insert; 325, limit shell; 4, hollow torsion wheel; 41, slotted round shell; 42, limit clamp; 43, closed end; 44, modified sliding sleeve; 45, weak magnetic ring; 46, drainage groove. DETAILED DESCRIPTION

[0033] The present invention will be described in further detail below with reference to the accompanying drawings and specific embodiments. The embodiments of the present invention are provided for purposes of illustration and description and are not intended to be exhaustive or to limit the invention to the disclosed forms. Many modifications and variations will be apparent to those skilled in the art. The embodiments are chosen and described to better illustrate the principles of the invention and its practical application, and to enable those skilled in the art to understand the invention and design various embodiments with various modifications suitable for specific applications.

[0034] Example 1, please refer to Figures 1-8 The present invention provides a technical solution: a UV printing device for the surface of plastic products, comprising a guide component 1, the guide component 1 having a guide top plate 11, the top of the inner cavity of the guide top plate 11 being evenly provided with exhaust grooves 12, the lower surface of the guide top plate 11 being fixedly connected to a support platform 14, the bottom of the inner wall of the support platform 14 being evenly provided with piston push rods 13, the bottom of the support platform 14 being fixedly connected to a contact plate 15, when the piston push rod 13 is pushed upward and extruded, exhaust will be extruded upward through the exhaust grooves 12;

[0035] The upper surface of the guide top plate 11 is provided with a control slide box 2, and the back of the control slide box 2 is provided with a feeding device 3;

[0036] The feeding device 3 includes a feeding device 32, the bottom end of which is plugged with a guide outer tube 33, the bottom end of which is fixedly connected to a distribution box 34, and the end of the distribution box 34 whose output shaft is away from the guide outer tube 33 is fixedly connected to the feeding device 31. The guide outer tube 33 and the distribution box 34 are both arranged on the back of the control slide 2, and multiple groups of liquid drainage tracks are arranged inside the distribution box 34 for adding the required dye to the feeding device 31;

[0037] The material feeding device 31 includes an arched slider 311. The top of the inner wall of the arched slider 311 is fixedly connected to a guide inner plate 312. The bottom end of the guide inner plate 312 is fixedly connected to a connecting pipe 313. A rotary motor 315 is symmetrically arranged at the bottom of the inner cavity of the arched slider 311. The top end of the rotary motor 315 is connected to a friction ball 316 for rotation via a roller. The guide inner plate 312 serves to transport the dye and keep it warm. The dye passes through the inner wall of the guide inner plate 312 and is directly supplied to the printing machine 314 through the grooves cut in the connecting pipes 313 on both sides.

[0038] The feeding equipment 32 includes a fixed clamp shell 321, the inner wall of which is rotatably connected to a hollow twist wheel 4, a compression hose 323 is fixedly connected to the side of the inner cavity of the hollow twist wheel 4 close to the control slide box 2, and a right-angle insert 324 is fixedly connected to the side of the inner cavity of the hollow twist wheel 4 away from the control slide box 2.

[0039] The control slide box 2 includes a accommodating box shell 21, and paint cartridges 23 are evenly inserted into the upper part of the inner cavity of the accommodating box shell 21. A bidirectional torque motor 24 is fixedly connected to the middle part of the inner cavity of the paint cartridge 23. Both ends of the output shaft of the bidirectional torque motor 24 are fixedly connected to a turbine rotating rod 25. The middle part of the inner cavity of the accommodating box shell 21 is rotatably connected to a box door rotating plate 22. After removing the control slide box 2, the box door rotating plate 22 at the bottom is opened to take out the internal paint cartridges 23. A single color dye is added to the inside of each paint cartridge 23 for storage and backup. When the turbine rotating rod 25 rotates, the dye inside the paint cartridge 23 can be transported to the outside through the compression hose 323.

[0040] The end of the compression hose 323 away from the hollow twist wheel 4 is fixedly connected to the back of the inner cavity of the accommodating box shell 21 through the through-hole, and the end of the compression hose 323 away from the hollow twist wheel 4 extends to the inside of the paint tube 23, and the bottom end of the output shaft of the distribution box 34 is fixedly connected to the back of the inner cavity of the guide inner plate 312, and the printing machines 314 are symmetrically arranged on both sides of the outer surface of the connecting tube 313.

[0041] The bottom end of the arched slider 311 is slidably connected to one side of the inner wall of the support platform 14, and the outer surface of the friction ball 316 is rollingly connected to the middle of the inner wall of the support platform 14 through the median groove. The upper surface of the arched slider 311 is plugged into the axis of the lower surface of the accommodating box shell 21. The bottom end of the piston push rod 13 and the lower part of the outer surface of the arched slider 311 squeeze each other, and the rotary motor 315 twists the friction ball 316. Through the friction force between the friction ball 316 and the sliding grooves on both sides of the middle of the support platform 14, the control slide box 2 and the feeding device 3 are driven to slide along the guide top plate 11.

[0042] There are seven groups of fixed clamp shells 321. The front end of the fixed clamp shell 321 is fixedly connected to the back of the outer surface of the containing box shell 21. Both sides of the containing box shell 21 are fixedly connected to the limiting shell 325. The inner wall of the limiting shell 325 is fixedly connected to the deflection motor 322. The output shaft of the deflection motor 322 is fixedly connected to the axis center of the outer surface of the side hollow twist wheel 4.

[0043] Before using the device, each pigment cartridge 23 inside the housing 21 is filled with a different single-color dye, and then Figure 3 The container shell 21 is arranged in the form of a container, and a reserved feeding port is provided below the inner cavity of the pigment cartridge 23, which is covered by a cartridge cover. The volume inside the pigment cartridge 23 is large, and can accommodate more dyes. The container shell 21 itself has the function of heat preservation and moisture retention, and prevents the dye from solidifying inside the pigment cartridge 23.

[0044] When using this device for printing, the object to be printed is placed in front of the floor 15, and then the arched slider 311 controls the rotary motors 315 on both sides to twist the friction balls 316. Through the rolling friction of the friction balls 316, the traction control slide box 2 and the feeding device 3 are pulled back and forth along the guide top plate 11. When the printing machine 314 passes the object to be printed, the printing machine 314 performs the spraying work, and the above work is performed reciprocally to finally achieve the printing effect.

[0045] When the printing machine 314 of the device is working, the required dye is transported to the inside of the printing machine 314 by the dye cartridge 23 through the transfer method. The specific process is as follows: the bidirectional torque motor 24 inside the dye cartridge 23 controls the turbine rotating rod 25 to rotate clockwise, transporting the dye to the compression hose 323, and then spraying it outward through the hollow twist wheel 4 and the right-angle insert 324. Therefore, when the actual feeding work is carried out, the deflection motors 322 on both sides will deflect the side hollow twist wheel 4 90 degrees clockwise. At this time, the feeding device 32 is rotated by Figure 8 The status shown changes to Figure 7The state shown is that the right-angled tube 324 is inserted into the top of the guide outer tube 33, so the dye sprayed outward by the right-angled tube 324 will enter the interior of the distribution box 34 through the guide outer tube 33. When dyes of different colors flow inside the distribution box 34 and the guide inner plate 312, there will be no color cross-talk problem due to the obstruction of the partition. Then they are drained into the connecting tube 313 and supplied to the printing machine 314 for use through the cut-out opening of the connecting tube 313.

[0046] Since the compression hose 323 can be deformed appropriately, and the fixed clamp shell 321 only restricts the circular side of the hollow twist wheel 4, the seven hollow twist wheels 4 rotate synchronously through the side plug rods, so when the feeding equipment 32 is deflecting, each right-angle plug 324 can rotate synchronously.

[0047] Example 2, please refer to Figures 1-10 The present invention provides a technical solution: on the basis of embodiment 1, the hollow twist wheel 4 includes a slotted circular shell 41, and the middle part of the inner cavity of the slotted circular shell 41 is fixedly connected to a limiting snap ring 42, and a modified sliding sleeve 44 is slidably connected to the axis center of the inner wall of the limiting snap ring 42. The lower part of the inner cavity of the modified sliding sleeve 44 is evenly provided with drainage grooves 46, and the bottom of the outer surface of the modified sliding sleeve 44 is fixedly connected to a weak magnetic ring 45, and the top of the modified sliding sleeve 44 is fixedly connected to a closed end 43. The limiting snap ring 42 in the middle is made of metal material, and the modified sliding sleeve 44 can be simply fixed by adsorbing the weak magnetic ring 45. At this time, the dye can pass through the hollow twist wheel 4 through the middle opening of the modified sliding sleeve 44 and the drainage groove 46 that passes through the limiting snap ring 42. Otherwise, the dye will be blocked in the interior of the slotted circular shell 41, and the external air cannot flow back to the paint cartridge 23 through the slotted circular shell 41.

[0048] There are seven groups of hollow torsion wheels 4. The outer surface of the hollow torsion wheel 4 is rotatably connected to the inner wall of the fixed clamp shell 321. The outer surface of the weak magnetic ring 45 is plugged into the outer surface of the limit clamp 42 near the side of the control slide box 2. The bottom end of the modified sliding sleeve 44 is slidably connected to the axis center of the inner wall of the slotted circular shell 41.

[0049] Support partitions are symmetrically arranged on both sides of the bottom of the inner wall of the accommodating box shell 21, and the upper surface of the support partitions is fixedly connected to a balance meter 26. Pressure-sensitive plates 210 are symmetrically arranged on both sides of the balance meter 26. The lower surface of the pressure-sensitive plate 210 is fixedly connected to a thrust spring 29. The bottom end of the thrust spring 29 is fixedly connected to a deflection rotating plate 28, and one side of the deflection rotating plate 28 is rotatably connected to a fixed shaft rod 27.

[0050] The front and rear ends of the fixed shaft 27 are fixedly connected to the inner cavity of the containing box shell 21, the top end of the thrust spring 29 extends to the top of the support partition through the groove, one end of the pressure-sensitive plate 210 extends to the interior of the balance instrument 26, and the bottom of the containing box shell 21 is slidably connected to the upper surface of the guide top plate 11.

[0051] During the process of the right-angled intubation tube 324 rotating from the vertical state to the horizontal state, the modified sliding sleeve 44 located inside the hollow twisting wheel 4 also slides along the inner wall of the slotted circular shell 41 under the action of centrifugal force. Figure 7 As shown, at this time, the modified sliding sleeve 44 is pushed toward the side close to the right-angled cannula 324, and then the portion where the drainage groove 46 is located passes through the limiting clamp 42, and the weak magnetic ring 45 at the bottom of the modified sliding sleeve 44 is inserted into the slot on the side of the limiting clamp 42, and they are attracted to each other. The liquid dye entering the compression hose 323 can pass through the connected drainage groove 46 and the slotted circular shell 41, and then enter the right-angled cannula 324. When the right-angled cannula 324 is in a vertical state, the modified sliding sleeve 44 will slide down due to its own gravity, as shown in FIG. Figure 9 As shown, at this time, the drainage groove 46 cannot penetrate the limiting clamp 42, and the magnetic force of the weak magnetic ring 45 cannot completely offset the gravity of the modified sliding sleeve 44, so the interior of the slotted circular shell 41 is in a blocked state.

[0052] During the sliding movement of the arch slider 311 along the guide top plate 11, the two sides of the bottom of the arch slider 311 periodically squeeze the piston push rod 13 through the grooves, that is, the piston push rod 13 is pushed upward, and the gas is discharged upward through the exhaust groove 12, and then acts on the deflection turn plates 28 on both sides. The impact force of the airflow pushes the deflection turn plates 28 upward, and then when the deflection turn plates 28 deflect along the fixed shaft 27, they will be squeezed onto the pressure-sensitive plate through the thrust spring 29, and then fed back to the balance meter 26 through the pressure-sensitive plate, and then the cooling effect of the current jet of the piston push rod 13 can be judged.

[0053] Obviously, the embodiments described are only some of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field and related fields without making creative efforts should fall within the scope of protection of the present invention. Structures, devices, and operating methods not specifically described and explained in the present invention shall be implemented in accordance with conventional means in the field unless otherwise specified or limited.

Claims

1. A UV printing device for the surface of a plastic product, comprising a guide component (1), wherein the guide component (1) has a guide top plate (11), the top of the inner cavity of the guide top plate (11) is uniformly provided with exhaust grooves (12), the lower surface of the guide top plate (11) is fixedly connected to a support platform (14), the bottom of the inner wall of the support platform (14) is uniformly provided with piston push rods (13), and the bottom of the support platform (14) is fixedly connected to a floor surface (15), characterized in that: A control slide box (2) is provided on the upper surface of the guide top plate (11), and a feeding device (3) is provided on the back of the control slide box (2); The feeding device (3) comprises a feeding device (32), the bottom end of the feeding device (32) is plugged with a guide outer tube (33), the bottom end of the guide outer tube (33) is fixedly connected to a material distribution box (34), and the end of the output shaft of the material distribution box (34) away from the guide outer tube (33) is fixedly connected to a material passing device (31); The material passing device (31) comprises an arched slider (311), the top of the inner wall of the arched slider (311) is fixedly connected to a guide inner plate (312), the bottom end of the guide inner plate (312) is fixedly connected to a connecting pipe (313), a rotary motor (315) is symmetrically arranged at the bottom of the inner cavity of the arched slider (311), and the top end of the rotary motor (315) is rotatably connected to a friction ball (316) via a roller; The feeding device (32) comprises a fixed clamp shell (321), the inner wall of the fixed clamp shell (321) is rotatably connected to a hollow twist wheel (4), a compression hose (323) is fixedly connected to the side of the inner cavity of the hollow twist wheel (4) close to the control slide box (2), and a right-angle insert (324) is fixedly connected to the side of the inner cavity of the hollow twist wheel (4) away from the control slide box (2); The control slide box (2) comprises a housing shell (21), a paint cartridge (23) is evenly inserted into the upper portion of the inner cavity of the housing shell (21), a bidirectional torque motor (24) is fixedly connected to the middle portion of the inner cavity of the paint cartridge (23), and both ends of the output shaft of the bidirectional torque motor (24) are fixedly connected to a turbine rotating rod (25); One end of the compression hose (323) away from the hollow twist wheel (4) extends to the interior of the paint cartridge (23); Both sides of the containing box shell (21) are fixedly connected to a limiting outer shell (325), the inner wall of the limiting outer shell (325) is fixedly connected to a deflection motor (322), and the output shaft of the deflection motor (322) is fixedly connected to the axis center of the outer surface of the side hollow twist wheel (4); The hollow twist wheel (4) comprises a slotted circular shell (41), a limiting clamping ring (42) is fixedly connected to the middle of the inner cavity of the slotted circular shell (41), a modified sliding sleeve (44) is slidably connected to the axis center of the inner wall of the limiting clamping ring (42), drainage grooves (46) are evenly opened at the lower part of the inner cavity of the modified sliding sleeve (44), a weak magnetic ring (45) is fixedly connected to the bottom of the outer surface of the modified sliding sleeve (44), and a closed end (43) is fixedly connected to the top of the modified sliding sleeve (44).

2. The UV printing device for plastic product surface according to claim 1, characterized in that: The middle portion of the inner cavity of the containing box shell (21) is rotatably connected to a box door rotating plate (22).

3. The UV printing device for plastic product surface according to claim 2, characterized in that: One end of the compression hose (323) away from the hollow twist wheel (4) is fixedly connected to the back of the inner cavity of the accommodating box shell (21) through a through opening, and the bottom end of the output shaft of the distribution box (34) is fixedly connected to the back of the inner cavity of the guide inner plate (312). Printing machines (314) are symmetrically provided on both sides of the outer surface of the connecting tube (313).

4. The UV printing device for plastic product surface according to claim 3, characterized in that: The bottom end of the arched slider (311) is slidably connected to one side of the inner wall of the support platform (14), the outer surface of the friction ball (316) is rollingly connected to the middle of the inner wall of the support platform (14) through the median groove, the upper surface of the arched slider (311) is plugged into the axis of the lower surface of the accommodating box shell (21), and the bottom end of the piston push rod (13) and the lower part of the outer surface of the arched slider (311) are pressed against each other.

5. The UV printing device for plastic product surface according to claim 4, characterized in that: The number of the fixed clamp shells (321) is seven groups, and the front ends of the fixed clamp shells (321) are fixedly connected to the back of the outer surface of the accommodating box shell (21).

6. The UV printing device for plastic product surface according to claim 1, characterized in that: The number of the hollow twist wheels (4) is seven. The outer surface of the hollow twist wheels (4) is rotatably connected to the inner wall of the fixed clamp shell (321). The outer surface of the weak magnetic ring (45) is plugged into the outer surface of the limit clamp ring (42) on the side close to the control slide box (2). The bottom end of the modified sliding sleeve (44) is slidably connected to the axis of the inner wall of the slotted circular shell (41).

7. The UV printing device for plastic product surface according to claim 2, characterized in that: Support partitions are symmetrically arranged on both sides of the bottom of the inner wall of the containing box shell (21), and the upper surface of the support partition is fixedly connected to a balance meter (26), and pressure-sensitive plates (210) are symmetrically arranged on both sides of the balance meter (26), and the lower surface of the pressure-sensitive plate (210) is fixedly connected to a thrust spring (29), and the bottom end of the thrust spring (29) is fixedly connected to a deflection plate (28), and one side of the deflection plate (28) is rotatably connected to a fixed shaft rod (27).

8. The UV printing device for plastic product surface according to claim 7, characterized in that: The front and rear ends of the fixed shaft (27) are fixedly connected to the inner cavity of the housing shell (21), the top end of the thrust spring (29) extends to the top of the supporting partition through the groove, one end of the pressure-sensitive plate (210) extends to the inside of the balance instrument (26), and the bottom of the housing shell (21) is slidably connected to the upper surface of the guide top plate (11).

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