UV ink-jet printer

Abstract

The invention discloses a UV ink-jet printer which comprises two symmetrically-arranged mounting frames, a conveying belt is jointly arranged between two rotating rollers in a sleeving mode, a cleaning assembly is arranged on the portion, located on the upstream of a UV ink-jet printer body, in the conveying direction of the conveying belt, a moving block is in threaded connection with the circumferential outer wall of a lead screw, and the moving block is fixedly connected with the cleaning assembly. A large disc provided with a driven shaft at the top is arranged between the mounting plate and the supporting frame, the driving shaft and the driven shaft are in transmission connection through a transmission mechanism, a plurality of inner protruding teeth are arranged on the circumferential inner wall of the large disc, and a plurality of outer protruding teeth are arranged on the circumferential outer wall of the small disc. The upper end of the lead screw penetrates through the mounting box and is fixedly sleeved with a first gear. On the basis of realizing automatic cleaning, the UV ink-jet printing machine is simple and reliable in structure, the overall equipment cost is reduced, the situation that product transmission is influenced is avoided, the position precision of products is guaranteed, and the ink-jet printing effect is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of inkjet printers, and in particular to a UV inkjet printer. Background Art

[0002] A UV inkjet printer is a device that uses ultraviolet drying technology for spraying and printing. It adopts special inkjet technology, sprays coatings, inks or printing inks, and forms required patterns, characters or barcodes and other markings on the surface of the ejected object. Through the UV inkjet printer, product identification and traceability can be achieved quickly and efficiently, and the controllability of production management and product quality can be improved.

[0003] After retrieval, the patent with the publication number CN219856516U discloses "a conveying type industrial inkjet printer with a dust cleaning function", which includes a fixed bracket for support, a conveying device installed at the upper end of the fixed bracket, and an inkjet device arranged above the conveying device, a mounting column, the lower end of the mounting column is fixedly connected to the inkjet device through bolts, and the upper end of the mounting column is inserted with a fixed column, a clamping mechanism, the clamping mechanism is symmetrically arranged on the left and right sides of the upper end of the conveying device, and the clamping mechanism is used for clamping and conveying the products to be conveyed, a cleaning brush, the cleaning brush is arranged at the rear end of the inkjet device. This device is convenient for clamping and stably conveying products during the conveying process, is convenient for clamping and conveying products of different types and sizes, and through the setting of the cleaning brush, it is convenient to clean the outer surface of the product inkjet, ensuring clarity during the inkjet process.

[0004] In the prior art, a cleaning device is provided to clean the dust on the surface of the product. However, this cleaning device is generally fixedly arranged. If the distance between the cleaning device and the conveyor belt is adjusted improperly, during the transmission of the product, the cleaning device will block the product, resulting in the displacement of the product position and causing the subsequent inkjet position to shift. Summary of the Invention

[0005] The purpose of the present invention is to provide a UV inkjet printer, which is simple and reliable in structure while realizing automatic cleaning, reduces the overall equipment cost, and also avoids the situation of affecting product transmission, is beneficial to ensuring the position accuracy of the product, and thus improves the inkjet effect.

[0006] To achieve the above purpose, the technical solution adopted by the present invention is: a UV inkjet printer, including: two symmetrically arranged mounting frames, and a rotating roller is arranged at intervals between the two mounting frames. A conveyor belt is sleeved between the two rotating rollers. An electric rotating motor for driving the rotating roller is arranged on the outer wall of one of the mounting frames. A UV inkjet printer body is arranged between the two mounting frames on this conveyor belt. A cleaning component is arranged upstream of the UV inkjet printer body in the transmission direction of the conveyor belt; Above the conveyor belt and between two mounting brackets, a support frame is provided. The support frame is fixedly connected with a mounting box internally rotatably installed with a lead screw. A moving block is threadedly connected to the outer wall of the circumferential direction of the lead screw, and the moving block is fixedly connected with the cleaning assembly; Above the support frame, a mounting plate rotatably connected with a driving shaft is provided. And between the output shaft of the driving shaft and the rotating motor, they are connected by a belt drive. Between the mounting plate and the support frame, a large disc with a driven shaft installed at the top is provided. Between the driving shaft and the driven shaft, they are connected by a transmission mechanism; At the bottom of the large disc, a small disc is fixedly installed concentrically. On the circumferential inner wall of the large disc, a number of inner convex teeth are provided. On the circumferential outer wall of the small disc, a number of outer convex teeth are provided. The upper end of the lead screw penetrates through the mounting box and is fixedly sleeved with a first gear. The first gear between the inner wall of the large disc and the outer wall of the small disc is meshed with the inner convex teeth and the outer convex teeth respectively, so that the lead screw can rotate forward or backward.

[0007] In the above technical solution, the further improved solutions are as follows: 1. In the above solution, the cleaning assembly includes: a limiting plate arranged between two mounting brackets, a forward and reverse motor, and a cleaning roller fixedly connected to the output shaft of the forward and reverse motor. Along the length direction of the limiting plate, a chute internally slidably connected with a slider is provided. On the side of the forward and reverse motor opposite to the cleaning roller, it is fixedly connected with the slider.

[0008] 2. In the above solution, on one side of the forward and reverse motor and parallel to the chute, a rack is provided. And between the forward and reverse motor and the cleaning roller, a second gear meshed with the rack is provided.

[0009] 3. In the above solution, a second rotating shaft is fixedly connected between the output shaft of the forward and reverse motor and the cleaning roller, and the second gear is sleeved on the outer wall of the circumferential direction of the second rotating shaft.

[0010] 4. In the above solution, a limiting rod is provided between the forward and reverse motor and the cleaning roller and below the second rotating shaft.

[0011] 5. In the above solution, the transmission mechanism includes: a driving bevel gear sleeved on the outer wall of the driving shaft, a driven bevel gear sleeved on the outer wall of the driven shaft, and the driving bevel gear and the driven bevel gear are meshed with each other.

[0012] 6. In the above solution, through grooves are respectively provided on two mounting brackets on both sides of the cleaning roller.

[0013] 7. In the above solution, on the side of the two mounting brackets opposite to the conveyor belt, a dust collection box matching with the through groove is provided.

[0014] 8. In the above solution, the rack and the limit plate are fixedly connected through a connecting plate.

[0015] 9. In the above solution, the inner diameter of the large disc is 1.2 to 2.8 times the outer diameter of the small disc.

[0016] Due to the application of the above technical solution, the present invention has the following advantages compared with the prior art: 1. For the UV inkjet printer of the present invention, a belt drive connection is provided between the driving shaft and the output shaft of the rotating motor. A large disc with a driven shaft installed on top is arranged between the mounting plate and the support frame. A small disc is fixedly installed concentrically at the bottom of the large disc. A plurality of inner convex teeth are provided on the circumferential inner wall of the large disc, and a plurality of outer convex teeth are provided on the circumferential outer wall of the small disc. When the rotating motor drives the rotating roller to drive the belt to rotate, the driving shaft is driven to rotate at the same time. Under the cooperation of the transmission mechanism, the driven shaft is driven to rotate, so that the large disc and the small disc rotate, thereby driving the inner convex teeth on the inner wall of the large disc and the outer convex teeth on the outer wall of the small disc to be sequentially engaged with the first gear, so that the lead screw can be driven to rotate forward or backward. When conveying, the cleaning roller is lifted to avoid affecting the transmission of the circuit board, and the circuit board is cleaned when the circuit board stops transmitting. On the basis of realizing automatic cleaning, the structure is simple and reliable, the overall equipment cost is reduced, and the situation that the cleaning component affects the product transmission is avoided, which is beneficial to ensuring the position accuracy of the product, thereby improving the inkjet printing effect.

[0017] 2. For the UV inkjet printer of the present invention, a chute with a slider slidably connected inside is provided along the length direction of the limit plate. The opposite side of the forward and reverse motor to the cleaning roller is fixedly connected to the slider. A rack is arranged on one side of the forward and reverse motor and parallel to the chute. A second gear meshing with the rack is arranged between the forward and reverse motor and the cleaning roller. When the forward and reverse motor drives the cleaning roller to rotate, through the cooperation of the gear and the rack, the cleaning roller can be driven to move along the length direction of the rack, so as to realize the automatic cleaning of the surface of the product on the conveyor belt, expand the cleaning range of a single cleaning roller, improve the cleaning efficiency, and is beneficial to improving the inkjet printing quality. Brief Description of the Drawings

[0018] Attached Figure 1 is the first perspective structural diagram of the UV inkjet printer of the present invention; Attached Figure 2 is the second perspective structural diagram of the UV inkjet printer of the present invention; Attached Figure 3 is the partial structural schematic Figure 1 ; Attached Figure 4 is the partial structural schematic Figure 2 .

[0019] In the above drawings: 1. Second mounting plate; 2. Driven bevel gear; 3. Driving shaft; 4. Driving bevel gear; 5. Reversible motor; 6. Cleaning roller; 7. Conveyor belt; 8. Driven shaft; 9. Large disc; 10. UV inkjet printer body; 11. Mounting plate; 12. Mounting frame; 13. Mounting box; 14. Through groove; 15. Dust collection box; 16. Belt; 17. Rotating motor; 18. Lead screw; 19. Limiting plate; 20. Moving block; 21. Support rod; 22. Connecting plate; 23. Rack; 24. Inner convex teeth; 25. Small disc; 26. Outer convex teeth; 27. First gear; 28. Limiting rod; 29. First rotating shaft; 30. Second rotating shaft; 31. Slide block; 32. Second gear; 33. Slide groove; 34. Cleaning assembly; 35. Rotating roller. Embodiment

[0020] The present patent can be further clearly understood through the following specific embodiments, but they do not limit the present patent.

[0021] Embodiment 1: A UV inkjet printer, comprising: two symmetrically arranged mounting frames 12, and a rotating roller 35 is arranged at intervals between the two mounting frames 12. A conveyor belt 7 is sleeved between the two rotating rollers 35. On the outer wall of one of the mounting frames 12, a rotating motor 17 for driving the rotating roller 35 is arranged. A UV inkjet printer body 10 is arranged on the conveyor belt 7 and between the two mounting frames 12. A cleaning assembly 34 is arranged upstream of the UV inkjet printer body 10 in the transmission direction of the conveyor belt 7; The objects to be inkjet-printed are placed on the surface of the conveyor belt at equal intervals in sequence. The rotating motor is started to drive the first rotating shaft to rotate. The rotation of the first rotating shaft drives the driving roller of the conveyor belt to rotate, and the driving roller cooperates with the driven roller to convey the conveyor belt; A support frame 21 is arranged above the conveyor belt 7 and between the two mounting frames 12. The support frame 21 is fixedly connected with a mounting box 13 internally rotatably installed with a lead screw 18. A moving block 20 is threadedly connected to the outer circumferential wall of the lead screw 18, and the moving block 20 is fixedly connected with the cleaning assembly 34; A mounting plate 1 rotatably connected with a driving shaft 3 is arranged above the support frame 21. A belt 16 is used for driving connection between the driving shaft 3 and the output shaft of the rotating motor 17. A large disc 9 with a driven shaft 8 installed on the top is arranged between the mounting plate 1 and the support frame 21. A transmission mechanism is used for driving connection between the driving shaft 3 and the driven shaft 8; The first rotating shaft drives the driving shaft to rotate through a belt. The driving shaft drives the driven shaft to rotate through a driving bevel gear and a driven bevel gear. The driven shaft drives the large disc to rotate, and the large disc drives the small disc to rotate. The inner convex teeth on the inner wall of the large disc first engage with the first gear to drive the first gear to rotate forward. The first gear drives the lead screw to rotate forward. After the inner convex teeth are disengaged, the outer convex teeth on the outer circumference of the small disc then engage with the first gear to drive the first gear to rotate in the reverse direction. The first gear drives the lead screw to rotate in the reverse direction; A small disc 25 is fixedly installed concentrically at the bottom of the large disc 9. A plurality of inner convex teeth 24 are provided on the circumferential inner wall of the large disc 9. A plurality of outer convex teeth 26 are provided on the circumferential outer wall of the small disc 25. The upper end of the lead screw 18 passes through the mounting box 13 and is fixedly sleeved with a first gear 27. The first gear 27 located between the inner wall of the large disc 9 and the outer wall of the small disc 25 is meshed and connected with the inner convex teeth 24 and the outer convex teeth 26 respectively, so that the lead screw 18 can rotate forward or in the reverse direction; In this way, the lead screw is driven to rotate forward and backward reciprocally. The reciprocating rotation of the lead screw causes the moving block to reciprocally move up and down on the lead screw. Then the moving block drives the limiting plate to reciprocally move up and down, thereby driving the cleaning roller to reciprocally move up and down. When cleaning, it moves downward to contact the surface of the article. After cleaning is completed, it moves upward to leave the surface of the article to avoid affecting its conveyance.

[0022] The above-mentioned cleaning assembly 34 includes: a limiting plate 19 arranged between two mounting brackets 12, a forward and reverse motor 5, and a cleaning roller 6 fixedly connected to the output shaft of the forward and reverse motor 5. A chute 33 with a slider 31 slidably connected therein is opened along the length direction of the limiting plate 19. The side of the forward and reverse motor 5 opposite to the cleaning roller 6 is fixedly connected to the slider 31; When the conveyor belt stops conveying, the object to be inkjet-printed is conveyed to directly below the cleaning roller. At the same time, the cleaning roller descends to the surface of the object to be inkjet-printed to facilitate subsequent cleaning. The forward and reverse motor is started to drive the second rotating shaft to rotate. The second rotating shaft drives the cleaning roller to rotate, and the second rotating shaft also drives the second gear to rotate.

[0023] A rack 23 is arranged on one side of the forward and reverse motor 5 and is parallel to the chute 33. A second gear 32 meshing with the rack 23 is arranged between the forward and reverse motor 5 and the cleaning roller 6; Since the second gear meshes with the rack, the second gear rotates and moves while rotating. Then the cleaning roller is driven by the second rotating shaft to move and rotate while moving, so as to sweep away the dust on the surface of the object to be inkjet-printed. The dust swept by the cleaning roller is swept into the dust collection box through the through groove. The dust in the dust collection box can be cleaned uniformly. The dust on the surface of the object to be inkjet-printed can be automatically cleaned, avoiding affecting the quality of inkjet printing, and there is no need for manual cleaning, which saves time and effort.

[0024] A second rotating shaft 30 is fixedly connected between the output shaft of the forward and reverse motor 5 and the cleaning roller 6 , and the second gear 32 is sleeved on the circumferential outer wall of the second rotating shaft 30 .

[0025] A limiting rod 28 is disposed between the forward and reverse motor 5 and the cleaning roller 6 and below the second rotating shaft 30 .

[0026] The transmission mechanism comprises: a driving bevel gear 4 sleeved on the outer wall of the driving shaft 3 and a driven bevel gear 2 sleeved on the outer wall of the driven shaft 8 , and the driving bevel gear 4 and the driven bevel gear 2 are meshingly connected.

[0027] A through slot 14 is provided on both sides of the cleaning roller 6 and on the two mounting frames 12 .

[0028] A dust collecting box 15 matching with the through slot 14 is arranged on the side of the two mounting frames 12 opposite to the conveyor belt 7 .

[0029] The rack 23 and the limiting plate 19 are fixedly connected via a connecting plate 22 .

[0030] The inner diameter of the large disc 9 is 1.8 times the outer diameter of the small disc 25 .

[0031] The rotating motor 17 and the rotating roller 35 are fixedly connected via a first rotating shaft 29 .

[0032] The first rotating shaft 29 is connected to the driving shaft 3 via a belt 16 .

[0033] The rack 23 and the limiting rod 28 are symmetrically arranged about the second rotating shaft 30 .

[0034] A second mounting plate 11 is disposed above the UV inkjet printer body 10 , and the mounting plate 1 is fixedly mounted on the side wall of the second mounting plate 11 .

[0035] The mounting plate 1 is in an L-shape.

[0036] The second mounting plate 11 is in a C-shape.

[0037] Embodiment 2: A UV inkjet printer, comprising: two symmetrically arranged mounting frames 12, a rotating roller 35 is arranged between the two mounting frames 12, a conveyor belt 7 is sleeved between the two rotating rollers 35, a rotating motor 17 for driving the rotating roller 35 is arranged on the outer wall of one of the mounting frames 12, a UV inkjet printer body 10 is arranged between the conveyor belt 7 and the two mounting frames 12, and a cleaning component 34 is arranged upstream of the UV inkjet printer body 10 in the transmission direction of the conveyor belt 7; A support frame 21 is disposed above the conveyor belt 7 and between the two mounting frames 12, and the support frame 21 is fixedly connected to a mounting box 13 in which a screw rod 18 is rotatably mounted, a moving block 20 is threadedly connected to the circumferential outer wall of the screw rod 18, and the moving block 20 is fixedly connected to the cleaning assembly 34; The rotating motor drives the rotating roller to drive the belt to rotate and drives the driving shaft to rotate at the same time, and drives the driven shaft to rotate under the cooperation of the transmission mechanism, so that the large disc and the small disc rotate, thereby driving the inner convex teeth on the inner wall of the large disc and the outer convex teeth on the outer wall of the small disc to mesh with the first gear in sequence, so that the lead screw can be driven to rotate forward or reversely; A mounting plate 1 rotatably connected to a driving shaft 3 is disposed above the support frame 21, and the driving shaft 3 is connected to the output shaft of the rotating motor 17 via a belt 16. A large disc 9 with a driven shaft 8 mounted on the top is disposed between the mounting plate 1 and the support frame 21, and the driving shaft 3 and the driven shaft 8 are connected via a transmission mechanism. A small disc 25 is fixedly mounted on the bottom of the large disc 9 in a concentric manner, a plurality of inner convex teeth 24 are arranged on the circumferential inner wall of the large disc 9, a plurality of outer convex teeth 26 are arranged on the circumferential outer wall of the small disc 25, the upper end of the screw rod 18 passes through the mounting box 13 and is fixedly sleeved with a first gear 27, the first gear 27 located between the inner wall of the large disc 9 and the outer wall of the small disc 25 is meshed and connected with the inner convex teeth 24 and the outer convex teeth 26 respectively, so that the screw rod 18 can rotate forward or reverse; During transportation, the cleaning roller rises to avoid affecting the transmission of the circuit board, and cleans the circuit board when it stops transmitting. On the basis of realizing automatic cleaning, the structure is simple and reliable, which reduces the overall equipment cost and avoids the situation where the cleaning component affects the product transmission, which is beneficial to ensure the position accuracy of the product, thereby improving the coding effect.

[0038] The above-mentioned cleaning component 34 includes: a limit plate 19 arranged between two mounting frames 12, a forward and reverse motor 5, and a cleaning roller 6 fixedly connected to the output shaft of the forward and reverse motor 5. A sliding groove 33 with a slider 31 internally slidably connected is provided along the length direction of the above-mentioned limit plate 19, and the side of the forward and reverse motor 5 opposite to the cleaning roller 6 is fixedly connected to the slider 31.

[0039] A rack 23 is disposed on one side of the forward and reverse motor 5 and parallel to the slide slot 33, and a second gear 32 meshing with the rack 23 is disposed between the forward and reverse motor 5 and the cleaning roller 6; While driving the cleaning roller to rotate through the forward and reverse motor, the cooperation of the gear and the rack can drive the cleaning roller to move along the length direction of the rack, so as to realize the automatic cleaning of the surface of the product on the conveyor belt, expand the cleaning range of a single cleaning roller, improve the cleaning efficiency, and be beneficial to improving the inkjet printing quality.

[0040] A second rotating shaft 30 is fixedly connected between the output shaft of the above-mentioned forward and reverse motor 5 and the cleaning roller 6, and the above-mentioned second gear 32 is sleeved on the outer wall of the circumferential direction of the second rotating shaft 30.

[0041] A limiting rod 28 is arranged between the above-mentioned forward and reverse motor 5 and the cleaning roller 6 and below the second rotating shaft 30. By limiting the second rotating shaft through the limiting rod and the rack, the position accuracy of the second rotating shaft is greatly improved, and the stability of the movement of the cleaning roller is also improved.

[0042] The above-mentioned transmission mechanism includes: a driving bevel gear 4 sleeved on the outer wall of the driving shaft 3, a driven bevel gear 2 sleeved on the outer wall of the driven shaft 8, and the above-mentioned driving bevel gear 4 and the driven bevel gear 2 are meshed and connected; After the cleaning is completed, the conveyor belt works again to convey the next item over. The cleaning roller completes a process of rising and falling until the next cleaning, so as to drive the cleaning roller to lift and lower by using the driving device (rotating motor) that drives the conveyor belt to convey.

[0043] Through grooves 14 are respectively opened on two mounting brackets 12 located on both sides of the above-mentioned cleaning roller 6.

[0044] A dust collection box 15 matching with the through groove 14 is arranged on one side of the two above-mentioned mounting brackets 12 opposite to the conveyor belt 7, which can realize the centralized collection of the dust swept down, facilitating centralized cleaning by personnel.

[0045] The above-mentioned rack 23 and the limiting plate 19 are fixedly connected through a connecting plate 22.

[0046] The inner diameter of the above-mentioned large disc 9 is 2.4 times the outer diameter of the small disc 25.

[0047] The shape of the above-mentioned moving block 20 is L-shaped.

[0048] The above-mentioned mounting box 13 is arranged in the middle of the above-mentioned support frame 21.

[0049] The shape of the above-mentioned support frame 21 is C-shaped.

[0050] A number of the above-mentioned inner convex teeth 24 are continuously distributed on the inner wall of half a circumference of the large disc 9. The above-mentioned outer convex teeth 26 are connected and arranged on the half circumference of the small disc 25 opposite to the inner convex teeth 24, so that the lead screw 18 is sequentially meshed with the inner convex teeth 24 and the outer convex teeth 26.

[0051] The working principle is as follows: During use, the objects to be inkjet-printed are placed on the surface of the conveyor belt at equal intervals in sequence. The rotation motor is started to drive the first rotating shaft to rotate. The rotation of the first rotating shaft drives the driving roller of the conveyor belt to rotate. The driving roller cooperates with the driven roller to convey the conveyor belt; The first rotating shaft drives the driving shaft to rotate through a belt. The driving shaft drives the driven shaft to rotate through the driving bevel gear and the driven bevel gear. The driven shaft drives the large disc to rotate. The large disc drives the small disc to rotate. The inner convex teeth on the inner wall of the large disc first engage with the first gear to drive the first gear to rotate forward. The first gear drives the lead screw to rotate forward. After the inner convex teeth are engaged, the outer convex teeth on the outer circumference of the small disc then engage with the first gear to drive the first gear to rotate backward. The first gear drives the lead screw to rotate backward. In this way, the lead screw reciprocates forward and backward. The reciprocating rotation of the lead screw causes the moving block to reciprocate up and down on the lead screw. Then the moving block drives the limiting plate to reciprocate up and down, thereby driving the cleaning roller to reciprocate up and down. When cleaning, it moves downward to contact the surface of the article. After cleaning, it moves upward to leave the surface of the article to avoid affecting its conveyance; When the conveyor belt stops conveying, the object to be inkjet-printed is conveyed to directly below the cleaning roller. At the same time, the cleaning roller descends to the surface of the object to be inkjet-printed for convenient subsequent cleaning. The forward and reverse motor is started to drive the second rotating shaft to rotate. The second rotating shaft drives the cleaning roller to rotate. The second rotating shaft also drives the second gear to rotate. Since the second gear meshes with the rack, the second gear rotates and moves while rotating. Then the cleaning roller is driven by the second rotating shaft to move and rotate while moving, thereby sweeping away the dust on the surface of the object to be inkjet-printed. The dust swept by the cleaning roller is swept into the dust collection box through the through groove. The dust in the dust collection box can be cleaned uniformly. It can automatically clean the dust on the surface of the object to be inkjet-printed, avoid affecting the quality of inkjet printing, and does not require manual cleaning, saving time and effort; After cleaning, the conveyor belt works again to convey the next article. The cleaning roller completes a process of rising and falling until the next cleaning, thereby using the rotation motor, which is the driving device for driving the conveyor belt to convey, to drive the cleaning roller to lift and lower.

[0052] When the above UV inkjet printer is adopted, while the rotation motor drives the rotating roller to drive the belt to rotate, it drives the driving shaft to rotate. Under the cooperation of the transmission mechanism, it drives the driven shaft to rotate, causing the large disc and the small disc to rotate, thereby driving the inner convex teeth on the inner wall of the large disc and the outer convex teeth on the outer wall of the small disc to engage with the first gear in sequence, so that the lead screw can be driven to rotate forward or backward. When conveying, the cleaning roller rises to avoid affecting the transmission of the circuit board. When the circuit board stops transmitting, it is cleaned. On the basis of realizing automatic cleaning, the structure is simple and reliable, the overall equipment cost is reduced, and the situation that the cleaning component affects the product transmission is also avoided, which is beneficial to ensuring the position accuracy of the product, thereby improving the inkjet printing effect; In addition, while the cleaning roller is driven to rotate by the forward and reverse motors, the cooperation of the gear and the rack can drive the cleaning roller to move along the length direction of the rack, so as to realize the automatic cleaning of the surface of the product on the conveyor belt, expand the cleaning range of a single cleaning roller, improve the cleaning efficiency, and is beneficial to improving the inkjet printing quality.

[0053] The above embodiments are only for illustrating the technical concept and characteristics of the present invention, and the purpose is to enable those who are familiar with this technology to understand the content of the present invention and implement it accordingly, and cannot be used to limit the protection scope of the present invention. Any equivalent changes or modifications made according to the spirit and essence of the present invention should be covered within the protection scope of the present invention.

Claims

1. A UV inkjet printer, include: Two mounting frames (12) are symmetrically arranged, and a rotating roller (35) is arranged at intervals between the two mounting frames (12); a conveyor belt (7) is sleeved between the two rotating rollers (35); a rotating motor (17) for driving the rotating roller (35) is arranged on the outer wall of one of the mounting frames (12); a UV inkjet printer body (10) is arranged on the conveyor belt (7) and between the two mounting frames (12); the device is characterized in that: a cleaning component (34) is arranged upstream of the UV inkjet printer body (10) in the transmission direction of the conveyor belt (7); A support frame (21) is disposed above the conveyor belt (7) and between the two mounting frames (12); the support frame (21) is fixedly connected to a mounting box (13) in which a screw rod (18) is rotatably mounted; a moving block (20) is threadedly connected to the circumferential outer wall of the screw rod (18); and the moving block (20) is fixedly connected to the cleaning assembly (34); A mounting plate (1) rotatably connected to a driving shaft (3) is arranged above the support frame (21), and the driving shaft (3) and the output shaft of the rotating motor (17) are connected by a belt (16). A large disc (9) with a driven shaft (8) mounted on the top is arranged between the mounting plate (1) and the support frame (21), and the driving shaft (3) and the driven shaft (8) are connected by a transmission mechanism. A small disc (25) is fixedly mounted on the bottom of the large disc (9) in a concentric manner. The inner circumferential wall of the large disc (9) is provided with a plurality of inner convex teeth (24), and the outer circumferential wall of the small disc (25) is provided with a plurality of outer convex teeth (26). The upper end of the screw rod (18) passes through the mounting box (13) and is fixedly sleeved with a first gear (27). The first gear (27) located between the inner wall of the large disc (9) and the outer wall of the small disc (25) is meshed with the inner convex teeth (24) and the outer convex teeth (26) respectively, so that the screw rod (18) can rotate forward or reverse.

2. The UV inkjet printer according to claim 1, Features: The cleaning assembly (34) comprises: a limit plate (19) arranged between two mounting frames (12), a forward and reverse motor (5), and a cleaning roller (6) fixedly connected to the output shaft of the forward and reverse motor (5); a slide groove (33) with a slider (31) slidably connected thereto is provided along the length direction of the limit plate (19); and the forward and reverse motor (5) is fixedly connected to the slider (31) on a side opposite to the cleaning roller (6).

3. The UV inkjet printer according to claim 2, Features: A rack (23) is provided on one side of the forward and reverse motor (5) and parallel to the slide groove (33), and a second gear (32) meshing with the rack (23) is provided between the forward and reverse motor (5) and the cleaning roller (6).

4. The UV inkjet printer according to claim 3, Features: A second rotating shaft (30) is fixedly connected between the output shaft of the forward and reverse motor (5) and the cleaning roller (6), and the second gear (32) is sleeved on the outer wall of the second rotating shaft (30).

5. The UV inkjet printer according to claim 4, characterized in that: A limiting rod (28) is arranged between the forward and reverse motor (5) and the cleaning roller (6) and below the second rotating shaft (30).

6. The UV inkjet printer according to claim 1, characterized in that: The transmission mechanism includes: a driving bevel gear (4) sleeved on the outer wall of the driving shaft (3), a driven bevel gear (2) sleeved on the outer wall of the driven shaft (8), and the driving bevel gear (4) and the driven bevel gear (2) are meshed and connected.

7. The UV inkjet printer according to claim 1, characterized in that: Through grooves (14) are formed in two mounting brackets (12) respectively on both sides of the cleaning roller (6).

8. The UV inkjet printer according to claim 7, characterized in that: A dust collection box (15) matched with the through groove (14) is arranged on one side of the two mounting brackets (12) opposite to the conveyor belt (7).

9. The UV inkjet printer according to claim 1, characterized in that: The rack (23) and the limiting plate (19) are fixedly connected through a connecting plate (22).

10. The UV inkjet printer according to claim 1, characterized in that: The inner diameter of the large disc (9) is 1.2 to 2.8 times the outer diameter of the small disc (25).

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