A tension-adjustable water transfer paper coating device

By combining infrared monitoring and cylinder cutting with an adjustable take-up roller structure, the problem of film loosening or shifting during roller changing in water transfer coating devices is solved, achieving stable material winding and efficient unwinding, and reducing scrap rate.

CN224279172UActive Publication Date: 2026-05-26SHANDONG HONGLIAN SPECIAL PAPER TECH CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
SHANDONG HONGLIAN SPECIAL PAPER TECH CO LTD
Filing Date
2025-08-04
Publication Date
2026-05-26

AI Technical Summary

Technical Problem

In traditional water transfer coating equipment, the film is prone to loosening or shifting when changing rollers, which can lead to material deformation and increase the scrap rate.

Method used

An adjustable tension water transfer paper coating device was designed. It uses an infrared receiver and an infrared transmitter to monitor the material thickness. The cylinder pushes the blade and rubber roller to cut the material while clamping the unwound portion. The design of the cylinder and rubber roller prevents the material from coming loose during rewinding. The adjustable winding and unwinding roller structure enables quick disassembly and installation.

Benefits of technology

It effectively prevents materials from loosening or shifting during roller changes, reduces material deformation, improves work efficiency, and lowers scrap rate.

✦ Generated by Eureka AI based on patent content.

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Abstract

This utility model relates to the field of coating processing technology and discloses a tension-adjustable water transfer paper coating device, including a machine base. An infrared receiver and an infrared transmitter are symmetrically fixedly connected to the top left side of the machine base. A mounting frame is fixedly connected to the top inner wall of the machine base. A cylinder is fixedly connected to the upper inside of the mounting frame. Two third slide grooves are symmetrically fixedly connected to the upper inside of the mounting frame. A second slider is slidably connected to the inner wall of each third slide groove. A mounting plate is fixedly connected to the bottom surface of the cylinder. The top surface of the mounting plate is fixedly connected to the bottom of each second slider. A blade is installed on the bottom left side of the mounting plate. A support column is fixedly connected to the bottom of the other side of the mounting plate. A second spring is sleeved on the outer wall of the support column. The bottom of the support column is slidably connected to the inside of the rubber roller to prevent unwound material from detaching from the roller during rewinding, thus preventing material deformation and reducing scrap rate.
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Description

Technical Field

[0001] This utility model relates to the field of coating processing technology, specifically to a water transfer paper coating device with adjustable tension. Background Technology

[0002] Water transfer printing paper coating equipment has evolved from manual operation and simple gravure coating to automation, environmental protection and intelligence, which has promoted the widespread application of water transfer printing technology in many industries such as automobiles, electronics, and building materials, and met the global market's demand for personalized manufacturing.

[0003] Traditional water transfer coating equipment cuts the film during winding, but without a clamping structure to hold the film in place for rewinding, the film may loosen or shift on other rollers when changing rollers, causing material deformation and increasing the scrap rate. Summary of the Invention

[0004] Technical problems to be solved

[0005] To address the shortcomings of existing technologies, this utility model provides a water transfer paper coating device with adjustable tension. It has the advantage of cutting the film during winding while clamping the unwound film, allowing for rewinding after replacing the new winding roller. This solves the problem of the film loosening or shifting on other rollers during roller replacement, causing material deformation.

[0006] Technical solution

[0007] To achieve the aforementioned goal of preventing the film from loosening or shifting on other rollers during roller changes, this utility model provides the following technical solution: a tension-adjustable water transfer paper coating device, comprising a machine base, an infrared receiver and an infrared transmitter symmetrically fixedly connected to the top left side of the machine base, a mounting frame fixedly connected to the top inner wall of the machine base, a cylinder fixedly connected to the upper inside of the mounting frame, two third sliding grooves symmetrically fixedly connected to the upper inside of the mounting frame, a second slider slidably connected to the inner wall of each third sliding groove, a mounting plate fixedly connected to the bottom surface of the cylinder, the top surface of the mounting plate fixedly connected to the bottom of each second slider, a blade mounted on the bottom left side of the mounting plate, a support column fixedly connected to the bottom of the other side of the mounting plate, a second spring sleeved on the outer wall of the support column, and the bottom of the support column slidably connected to the inside of the rubber roller.

[0008] As a further embodiment of this utility model: a feeding roller is installed on the bottom left side of the machine base, and a take-up roller is installed above the feeding roller. A square protrusion is inserted into one end of the back of both the take-up roller and the feeding roller. A connecting post is fixedly connected to the back of each square protrusion. A motor is fixedly connected to the end of each connecting post away from the square protrusion. A cylindrical slot is formed at the end of both the take-up roller and the feeding roller away from the square protrusion. Two cylindrical mounting posts are symmetrically fixedly connected to the inner wall of the front of the machine base. The inner wall of the slot is inserted into a cylindrical mounting post. A limiting ring is fitted onto the outer wall of each cylindrical mounting post. A third spring is fitted onto the outer wall of each cylindrical mounting post. One end of each third spring near the cylindrical slot is fixedly connected to the limiting ring. The outer wall of each limiting ring is slidably connected to the inner wall of the U-shaped mounting post. A slot is provided on the top surface of each U-shaped mounting post. A insert is inserted into the inner wall of each slot. The side of each insert near the cylindrical slot is in contact with the side of the limiting ring near the third spring.

[0009] As a further embodiment of this utility model: a controller is fixedly connected to the outer wall of the front of the machine platform; first sliding grooves are respectively opened on the outer walls of the front and back of the machine platform; a limit post is fixedly connected to the inner wall of each first sliding groove; a first spring is sleeved on the outer wall of each limit post; a compensation roller is installed on the right side of the feeding roller; cylindrical grooves are respectively opened at both ends of the compensation roller; the end of each limit post away from the controller is sleeved with the cylindrical groove; the two ends of the compensation roller are slidably connected to the inner wall of the first sliding groove; a tension detection roller is installed above the compensation roller; an adjusting roller is installed on the right side of the tension detection roller; second sliding grooves are respectively opened on the inner walls of the front and back of the machine platform; a first servo motor is fixedly connected to the bottom of each second sliding groove; a first threaded rod is fixedly connected to the top surface of each first servo motor; and the outer wall of each first threaded rod is threadedly connected to both ends of the adjusting roller.

[0010] As a further embodiment of this utility model: a first roller is installed on the right side of the adjusting roller, a paint roller is installed below the first roller, and a second roller is installed above the paint roller.

[0011] As a further embodiment of this utility model: a paint tank is provided below the paint roller, the bottom surface of the paint tank is fixedly connected to the inner bottom of the machine base, and a water pump is installed on the left side of the paint tank.

[0012] As a further embodiment of this utility model: a slide rail is installed on the right side of the paint tank, the bottom surface of the slide rail is fixedly connected to the bottom of the inner wall of the machine, a second servo motor is fixedly connected to the end of the slide rail away from the paint tank, a second threaded rod is fixedly connected to the side of the second servo motor close to the paint tank, a first slider is threadedly connected to the outer wall of the second threaded rod, the outer wall of the first slider is slidably connected to the inner wall of the slide rail, and a scraper is fixedly connected to the top surface of the first slider.

[0013] Beneficial effects

[0014] Compared with the prior art, this utility model provides a water transfer paper coating device with adjustable tension, which has the following beneficial effects:

[0015] 1. This tension-adjustable water transfer paper coating device monitors the material winding thickness on the take-up roller through an infrared receiver and an infrared transmitter. The cylinder pushes the blade and rubber roller downward to cut the material while clamping the remaining unwound material, preventing the remaining unwound material from detaching from other rollers during rewinding, thus causing material deformation and reducing the scrap rate.

[0016] 2. This tension-adjustable water transfer paper coating device allows the feed roller to be removed by pushing it towards the U-shaped mounting post, moving it away from the square protrusion. The material to be coated is then placed onto the feed roller, and the end of the feed roller with the cylindrical groove is aligned with the cylindrical mounting post for insertion. The other side of the feed roller is then inserted into the square protrusion, and the insert is inserted into the slot. This completes the quick disassembly and installation of the take-up roller and the feed roller, improving overall work efficiency. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of the tension-adjustable water transfer paper coating device of this utility model;

[0018] Figure 2 This is a schematic diagram of the internal structure of the machine tool of this utility model;

[0019] Figure 3 This is a front view of the machine tool structure of this utility model;

[0020] Figure 4 This is a schematic diagram of the mounting bracket structure of this utility model.

[0021] Figure 5 This is a cross-sectional schematic diagram of the winding roller structure of this utility model.

[0022] Figure 6 This is a cross-sectional schematic diagram of the U-shaped mounting column structure of this utility model.

[0023] In the diagram: 1. Machine base; 2. Controller; 3. Feeding roller; 4. First chute; 5. First spring; 6. Limiting post; 7. Compensating roller; 8. Cylindrical groove; 9. Tension detection roller; 10. Second chute; 11. First servo motor; 12. First threaded rod; 13. Adjusting roller; 14. First roller; 15. Water pump; 16. Paint tank; 17. Paint roller; 18. Slide rail; 19. First slider; 20. Scraper; 21. Second servo motor; 22. Second threaded rod; 23. Second roller 24. Cylinder; 25. Mounting bracket; 26. Cylinder; 27. Third slide groove; 28. Second slider; 29. ​​Mounting plate; 30. Blade; 31. Support column; 32. Second spring; 33. Rubber roller; 34. Motor; 35. Connecting column; 36. Square protrusion; 37. Take-up roller; 38. Cylindrical slot; 39. U-shaped mounting column; 40. Cylindrical mounting column; 41. Third spring; 42. Slot; 43. Limiting ring; 44. Insert; 45. Infrared receiver; 46. Infrared transmitter. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0025] Please see Figure 1-3An adjustable tension water transfer paper coating device includes a machine base 1. A controller 2 is installed on the left side of the front of the machine base 1. A feeding roller 3 is installed on the bottom left side inside the machine base 1. First grooves 4 are respectively opened on the front and back of the machine base 1. A limit post 6 is fixedly connected inside each first groove 4. A first spring 5 is sleeved on one end of each limit post 6 near the controller 2. A compensation roller 7 is installed on the right side of the feeding roller 3. Cylindrical grooves 8 are opened at both ends of the compensation roller 7. The inner wall of each cylindrical groove 8 is inserted into the other end of the limit post 6. The two ends of the compensation roller 7 are slidably connected inside the first grooves 4, and connected by the first spring. The elastic force generated by roller 5 will buffer the compensating roller 7, thereby adapting to materials of different materials and toughness, and stabilizing the tension of the material during the coating process. A tension detection roller 9 is installed above the compensating roller 7, and an adjusting roller 13 is installed on the right side of the tension detection roller 9. The inner wall of the machine base 1 is symmetrically provided with second slide grooves 10 in the middle. A first servo motor 11 is fixedly connected to the bottom of the inner wall of each second slide groove 10, and a first threaded rod 12 is fixedly connected to the top surface of each first servo motor 11. The two ends of the adjusting roller 13 are threadedly connected to the outer wall of the first threaded rod 12. A first roller is installed on the right side of the adjusting roller 13. 14. A water pump 15 is fixedly connected to the bottom right side of the machine base 1. A paint tank 16 is installed to the right of the water pump 15. The bottom surface of the paint tank 16 is fixedly connected to the bottom of the machine base 1. A paint roller 17 is installed above the paint tank 16. A slide rail 18 is installed to the right side of the paint tank 16. The bottom surface of the slide rail 18 is fixedly connected to the bottom of the machine base 1. A second servo motor 21 is fixedly connected to the end of the slide rail 18 away from the paint tank 16. A second threaded rod 22 is fixedly connected to the left side of the second servo motor 21. A first slider 19 is slidably connected to the inner wall of the slide rail 18. The inner wall of the first slider 19 is connected to the outer wall of the second threaded rod 22. The walls are connected by threads. A scraper 20 is fixedly connected to the top surface of the first slider 19. A second roller 23 is installed above the coating roller 17. A take-up roller 36 is installed on the left side of the second roller 23. A through-shaft sensor is embedded inside the tension detection roller 9. The tension is converted into an electrical signal by the elastic deformation of the tension detection roller 9. After conversion and processing, high-precision data is output to achieve accurate measurement of material tension. The through-shaft sensor is electrically connected to the controller 2. The controller 2 will automatically control the height of the adjusting roller 13 through the tension detection data to adjust to a suitable tension and avoid material wrinkling, breakage, or material loosening and deviation.

[0026] Please see Figure 1-6A square protrusion 35 is engaged with the end of the take-up roller 36 and the unloading roller 3 away from the controller 2. A connecting post 34 is fixedly connected to the side of each square protrusion 35 away from the controller 2. A motor 33 is fixedly connected to the side of each connecting post 34 away from the square protrusion 35. A cylindrical slot 37 is opened at the other end of the take-up roller 36 and the unloading roller 3. Two cylindrical mounting posts 39 are fixedly connected axially symmetrically to the inner wall of the front of the machine base 1. The inner wall of each cylindrical slot 37 is inserted into the cylindrical mounting post 39. A limit ring 42 is sleeved on the outer wall of each cylindrical mounting post 39. A third spring 40 is sleeved on the outer wall of the cylindrical mounting column 39. One end of each third spring 40 near the cylindrical slot 37 is fixedly connected to the limiting ring 42. The outer wall of each limiting ring 42 is slidably connected to the inner wall of the U-shaped mounting column 38. A slot 41 is opened on the top surface of each U-shaped mounting column 38. An insert 43 is inserted into the inner wall of each slot 41. The side of each insert 43 near the cylindrical slot 37 is in contact with the side of the limiting ring 42 near the third spring 40. This allows for quick disassembly and installation of the take-up roller 36 and the unloading roller 3, improving overall work efficiency.

[0027] Please see Figure 1-4 A mounting frame 24 is provided on the left side of the second roller 23. A cylinder 25 is fixedly connected to the upper part of the mounting frame 24. Two third slide grooves 26 are symmetrically installed on the upper part of the mounting frame 24. A second slider 27 is slidably connected to the inner wall of each third slide groove 26. A mounting plate 28 is fixedly connected to the bottom of the cylinder 25. The bottom of each second slider 27 is fixedly connected to the mounting plate 28. A blade 29 is installed on the bottom of the mounting plate 28 near the take-up roller 36. A support column 30 is fixedly connected to the bottom of the other side of the mounting plate 28. A second spring 31 is sleeved on the outer wall of the support column 30. The bottom of the support column 30 is slidably connected to the inside of the rubber roller 32. An infrared receiver 44 and an infrared transmitter 45 are symmetrically fixedly connected to the top left side of the machine base 1. While cutting the material and taking it up, the rubber roller 32 can clamp the unwound material to prevent the material from falling off other rollers during rewinding, causing material deformation and reducing the scrap rate.

[0028] Working principle: First, reset the machine, then turn on the water pump 15 to fill the paint tank 16 with paint. Pull the insert 43 from the slot 41 at the feeding roller 3, push the feeding roller 3 towards the U-shaped mounting post 38 to move the limiting ring 42 inward, and at the same time move the feeding roller 3 away from the square protrusion 35. The feeding roller 3 can then be removed. Place the material to be coated onto the feeding roller 3. After placement, align the end of the feeding roller 3 with the cylindrical slot 37 with the cylindrical mounting post 39 and insert it. Push the feeding roller 3 towards the U-shaped mounting post 38 so that the other side of the feeding roller 3 is flush with the square protrusion 35. Then stop pushing, and the third spring 40 generates a thrust to insert the square protrusion 35 into the other end of the feeding roller 3. After installation, insert the insert 43 into the slot 41 to fix the feeding roller 3 and prevent it from shifting during rotation. After fixing, start the machine, and the motor 33 will start rotating. The operator needs to pull out the end of the feeding roller 3 with the bottom paper and manually operate it to make the paper... The material passes through the bottom of the compensating roller 7, which moves within the first chute 4. The elastic force generated by the first spring 5 buffers the compensating roller 7, thus adapting to materials of different materials and toughness, ensuring stable tension during the coating process. The material is then manually passed over the tension detection roller 9 and under the adjusting roller 13. The tension detection roller 9 can detect the tension of the material in real time. If the tension is too high or too low, the controller 2 will control the first servo motor 11 to adjust the adjusting roller 13 to a suitable height to control the tension. The material is then manually wound over the first roller 14 and under the coating roller 17, so that the side requiring coating contacts the coating in the coating tank 16. The material is then wound over the second roller 23. At the same time, the controller 2 starts the second servo motor 21 to adjust the position of the scraper 20, thereby controlling the thickness of the coating on the material. Finally, the material is wound onto the surface of the take-up roller 36 for winding.

[0029] After the material is wound to a certain thickness, the material on the take-up roller 36 will block the infrared rays from the infrared emitter 45. When the infrared receiver 44 does not receive the infrared rays, it will activate the cylinder 25 to press down the blade 29. The blade 29 cuts the material and completes the winding. At the same time, the blade 29 also presses down the rubber roller 32, so that the rubber roller 32 can clamp the unwound material after the material is cut. The rubber material has a large friction and can easily clamp the material. At the same time, the second spring 31 can buffer the rubber roller 32 during the downward process, which can prevent excessive pressure from damaging the material. After the material is clamped, the operator needs to pull the unwound material and replace the take-up roller 36 and the unwound roller 3 according to the above method of disassembling and installing the unwound roller 3. After the take-up roller 36 is replaced, the infrared receiver 44 can receive the infrared rays normally, so the blade 29 and the rubber roller 32 are reset. The operator then winds the remaining unwound material onto the surface of the take-up roller 36, thus completing the rewinding.

[0030] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0031] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A tension-adjustable water transfer paper coating apparatus, comprising a machine base (1), characterized in that: An infrared receiver (44) and an infrared transmitter (45) are fixedly connected symmetrically on the top left side of the machine base (1). A mounting frame (24) is fixedly connected to the top of the inner wall of the machine base (1). A cylinder (25) is fixedly connected to the upper inside of the mounting frame (24). Two third slide grooves (26) are fixedly connected symmetrically on the upper inside of the mounting frame (24). A second slider (27) is slidably connected to the inner wall of each third slide groove (26). A mounting plate (28) is fixedly connected to the bottom of the cylinder (25). The top surface of the mounting plate (28) is fixedly connected to the bottom of each second slider (27). A blade (29) is installed on the bottom left side of the mounting plate (28). A support column (30) is fixedly connected to the bottom of the other side of the mounting plate (28). A second spring (31) is sleeved on the outer wall of the support column (30). The bottom of the support column (30) is slidably connected to the inside of the rubber roller (32).

2. The tension-adjustable water transfer paper coating apparatus according to claim 1, characterized in that: A feeding roller (3) is installed on the bottom left side inside the machine base (1). A take-up roller (36) is installed above the feeding roller (3). A square protrusion (35) is inserted into one end of the back of the take-up roller (36) and the feeding roller (3). A connecting post (34) is fixedly connected to the back of each square protrusion (35). A motor (33) is fixedly connected to the end of each connecting post (34) away from the square protrusion (35). A cylindrical slot (37) is opened at the end of the take-up roller (36) and the feeding roller (3) away from the square protrusion (35). Two cylindrical mounting posts (39) are fixedly connected axially symmetrically to the inner wall of the front of the machine base (1). The inner wall of each cylindrical slot (37) is connected to the cylindrical mounting post (39). The mounting posts (39) are inserted, and each cylindrical mounting post (39) is fitted with a limiting ring (42) on its outer wall. Each cylindrical mounting post (39) is fitted with a third spring (40) on its outer wall. One end of each third spring (40) near the cylindrical slot (37) is fixedly connected to the limiting ring (42). The outer wall of each limiting ring (42) is slidably connected to the inner wall of the U-shaped mounting post (38). Each U-shaped mounting post (38) has a slot (41) on its top surface. Each slot (41) has a insert (43) inserted into its inner wall. The side of each insert (43) near the cylindrical slot (37) is in contact with the side of the limiting ring (42) near the third spring (40).

3. The tension-adjustable water transfer paper coating apparatus according to claim 2, characterized in that: A controller (2) is fixedly connected to the outer wall of the front of the machine base (1). First grooves (4) are respectively opened on the outer walls of the front and back of the machine base (1). A limiting post (6) is fixedly connected to the inner wall of each first groove (4). A first spring (5) is sleeved on the outer wall of each limiting post (6). A compensating roller (7) is installed on the right side of the feeding roller (3). Cylindrical grooves (8) are respectively opened at both ends of the compensating roller (7). The end of each limiting post (6) away from the controller (2) is sleeved with the cylindrical groove (8). The compensating roller (7)... Both ends are slidably connected to the inner wall of the first slide groove (4). A tension detection roller (9) is installed above the compensation roller (7). An adjustment roller (13) is installed on the right side of the tension detection roller (9). The inner walls of the front and back sides of the machine base (1) are respectively provided with second slide grooves (10). A first servo motor (11) is fixedly connected to the bottom of each second slide groove (10). A first threaded rod (12) is fixedly connected to the top surface of each first servo motor (11). The outer wall of each first threaded rod (12) is threadedly connected to both ends of the adjustment roller (13).

4. The tension-adjustable water transfer paper coating apparatus according to claim 3, characterized in that: A first roller (14) is installed on the right side of the adjusting roller (13), a paint roller (17) is installed below the first roller (14), and a second roller (23) is installed above the paint roller (17).

5. The tension-adjustable water transfer paper coating apparatus according to claim 4, characterized in that: A paint tank (16) is provided below the paint roller (17). The bottom surface of the paint tank (16) is fixedly connected to the bottom of the inner side of the machine base (1). A water pump (15) is installed on the left side of the paint tank (16).

6. The tension-adjustable water transfer paper coating apparatus according to claim 5, characterized in that: A slide rail (18) is installed on the right side of the paint tank (16). The bottom surface of the slide rail (18) is fixedly connected to the bottom of the inner wall of the machine base (1). A second servo motor (21) is fixedly connected to the end of the slide rail (18) away from the paint tank (16). A second threaded rod (22) is fixedly connected to the side of the second servo motor (21) close to the paint tank (16). A first slider (19) is threadedly connected to the outer wall of the second threaded rod (22). The outer wall of the first slider (19) is slidably connected to the inner wall of the slide rail (18). A scraper (20) is fixedly connected to the top surface of the first slider (19).