A coating device for gilding foil production

Abstract

The utility model discloses a gilding foil production is with coating device relates to gilding foil coating technical field, aims at solving gilding foil in the winding process easy to appear position deviation, and then produces the technical problem of wrinkle, including coating machine, winding bottom plate, winding mechanism and adjusting mechanism. The utility model discloses through the sliding design of sliding block in the first sliding slot, cooperates the elastic pressure of spring, makes the compression roller can always closely adhere the gilding foil surface of winding, can produce the uniform thrust along the gilding foil axial through the spiral form of screw strip, can actively correct the slight deviation of gilding foil in the winding process, avoids the deviation of stacking due to relaxation, makes the compression roller still can steady rotation when going up with the winding thickness, ensures the continuous even of winding action, makes gilding foil always keep neat stacking in the winding process, improves the appearance regularity of winding body after winding. Solve gilding foil in the winding process easy to appear position deviation, and then produces the problem of wrinkle.

Description

Technical Field

[0001] This utility model relates to the field of hot stamping foil coating technology, and more specifically, to a coating device for hot stamping foil production. Background Technology

[0002] Hot stamping foil is a special material commonly used in packaging decoration, printed decoration, and other fields. In the production process of hot stamping foil, the coating operation is one of the key steps. The coating operation mainly involves evenly applying a specific coating to the surface of the hot stamping foil substrate to enhance its adhesion to subsequent plating layers, improve surface abrasion resistance, or impart specific physical and chemical properties. This ensures that the hot stamping foil can stably transfer patterns during subsequent hot stamping processes and is less prone to problems such as peeling or wear.

[0003] After coating, the hot stamping foil needs to be wound up for subsequent storage, transportation, and further processing. Most existing hot stamping foil winding devices use a drive motor to directly rotate the winding roller to achieve basic winding. However, when the hot stamping foil is conveyed to the winding roller for winding, positional misalignment can easily occur. If the angle at which the hot stamping foil enters the winding roller is slightly off, or if it is subjected to minor external disturbances during conveyance, it cannot stack along the ideal path and gradually develops wrinkles and misaligned stacking. Therefore, we propose a coating device for hot stamping foil production. Utility Model Content

[0004] The purpose of this utility model is to overcome the shortcomings of the existing technology, adapt to the needs of reality, and provide a coating device for hot stamping foil production, so as to solve the technical problem that hot stamping foil is prone to positional displacement during the winding process, which in turn causes wrinkles.

[0005] To solve the above-mentioned technical problems, this utility model provides the following technical solution: a coating device for hot stamping foil production, comprising a coating machine, a winding base plate, a winding mechanism, and an adjusting mechanism. The winding base plate is fixedly installed at the discharge position of the coating machine. A side plate is fixedly installed on the top of the winding base plate. An auxiliary roller is rotatably installed on the inner side of the side plate. The winding mechanism includes a sliding block, a pressure roller, and a threaded pressure strip. The sliding block is slidably installed inside a first groove corresponding to it on the side plate. The pressure roller is rotatably installed inside the sliding block. At least one continuous spiral protrusion is symmetrically provided along the axial direction on the outer surface of the pressure roller to form a threaded pressure strip. The adjusting mechanism includes a fixed sleeve, a threaded sleeve, and a spring. The fixed sleeve is fixedly installed on the top of the sliding block. The threaded sleeve is slidably sleeved inside the fixed sleeve. The spring is disposed between the fixed sleeve and the threaded sleeve.

[0006] Preferably, the winding mechanism further includes a motor, a first gear is fixedly mounted on the output end of the motor, a winding roller is rotatably mounted on the inner side of the side plate, a second gear that meshes with the first gear is fixedly mounted on the outer side of the winding roller, a mounting frame is slidably mounted on the outer side of the side plate, a third gear and a fourth gear that mesh with each other are rotatably mounted inside the mounting frame, the second gear and the third gear mesh, and a fifth gear that meshes with the fourth gear is fixedly mounted on the outer side of the pressure roller.

[0007] Preferably, the adjusting mechanism further includes a fixed base, which is fixedly installed outside the fixed sleeve. A fixed ring is fixedly installed outside the threaded sleeve, and a limit block is fixedly installed outside the threaded sleeve. A sliding groove is provided at the corresponding position of the fixed sleeve and the limit block, and the limit block is slidably installed inside the sliding groove. A threaded rod is threadedly installed inside the threaded sleeve, and a handwheel is fixedly installed on the top of the threaded rod.

[0008] Preferably, the axle of the second gear is hinged to the axle of the third gear via a first connecting rod, and the axle of the fourth gear is hinged to the axle of the fifth gear via a second connecting rod.

[0009] Preferably, the spiral protrusion of the threaded strip has a rounded corner edge in the contact area with the hot stamping foil.

[0010] Preferably, a second sliding groove is provided at the position corresponding to the mounting bracket on the side plate, and a slider structure that cooperates with the second sliding groove is provided on the side wall of the mounting bracket.

[0011] Preferably, the spring is sleeved outside the threaded sleeve, and its two ends abut against the fixed base and the fixed ring respectively, and the threaded rod is rotatably installed between the side plate and the inner wall of the top of the first slide groove.

[0012] Compared with the prior art, the beneficial effects of this utility model are: 1. This utility model utilizes a sliding block design within the first groove, combined with the elastic pressure of a spring, to ensure that the pressure roller remains tightly fitted to the surface of the rolled hot foil, preventing stacking misalignment due to slack. This allows the pressure roller to rotate stably evenly as the thickness of the rolled foil increases, ensuring continuous and uniform winding. This keeps the hot foil neatly stacked during the winding process, improving the overall uniformity of the finished roll. It also solves the problem of positional shifts and wrinkles that easily occur during the winding process of hot foil.

[0013] 2. This utility model also utilizes the spiral shape of the threaded pressure strip to generate uniform thrust on both sides of the hot stamping foil axis, which can actively correct the slight deviation that occurs during the hot stamping foil winding process, smooth out the parts that may cause wrinkles to the edge, ensure that each layer of hot stamping foil can be aligned, reduce the squeezing and friction caused by irregular stacking of internal materials, and effectively protect the integrity of the coating structure. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the external structure of the present utility model; Figure 2 This is a schematic diagram of the external structure of the winding mechanism and the adjusting mechanism of this utility model; Figure 3 This is a schematic diagram of the winding mechanism of this utility model; Figure 4 This is an exploded view of the winding mechanism of this utility model; Figure 5 This is a schematic diagram of the sliding block and its related structures according to the present invention; Figure 6 This is a schematic diagram of the adjustment mechanism structure of this utility model; Figure 7 This is a schematic diagram of the fixing sleeve and related structures of this utility model.

[0015] The following are the labels in the diagram: 1. Coating machine; 2. Winding mechanism; 21. Motor; 211. First gear; 22. Second gear; 221. First connecting rod; 23. Mounting bracket; 231. Third gear; 232. Fourth gear; 24. Sliding block; 241. First slide groove; 25. Fifth gear; 251. Second connecting rod; 26. Winding roller; 27. Pressure roller; 271. Threaded pressure bar; 3. Adjusting mechanism; 31. Fixed sleeve; 311. Fixed base; 32. Threaded sleeve; 321. Limiting block; 322. Fixed ring; 33. Spring; 34. Threaded rod; 35. Handwheel; 4. Winding base plate; 41. Side plate; 411. Second slide groove; 42. Auxiliary roller. Detailed Implementation

[0016] Example: Figures 1 to 7As shown, this utility model relates to a coating device for hot stamping foil production, including a coating machine 1, a winding base plate 4, a winding mechanism 2, and an adjusting mechanism 3. The winding base plate 4 is fixedly installed at the discharge position of the coating machine 1. A side plate 41 is fixedly installed on the top of the winding base plate 4, and an auxiliary roller 42 is rotatably installed on the inner side of the side plate 41. The winding mechanism 2 includes a sliding block 24, a pressure roller 27, and a threaded pressure strip 271. The sliding block 24 is slidably installed inside the first groove 241 corresponding to it on the side plate 41. The pressure roller 27 is rotatably installed inside the sliding block 24. The outer surface of the pressure roller 27 is symmetrically provided with at least one continuous spiral protrusion along the axial direction to form the threaded pressure strip 271. The outer edge of the spiral protrusion of the threaded pressure strip 271 has a rounded corner bevel in the contact area with the hot stamping foil. The adjusting mechanism 3 includes a fixing sleeve. The device comprises a cylinder 31, a threaded sleeve 32, and a spring 33. The fixed sleeve 31 is fixedly installed on the top of the sliding block 24. The threaded sleeve 32 is slidably fitted inside the fixed sleeve 31. The spring 33 is located between the fixed sleeve 31 and the threaded sleeve 32, and is fitted outside the threaded sleeve 32, with its two ends abutting against the fixed base 311 and the fixed ring 322, respectively. This invention, through the sliding design of the sliding block 24 within the first groove 241, combined with the elastic pressure of the spring 33, ensures that the pressure roller 27 remains tightly fitted to the surface of the hot stamping foil during winding, preventing stacking shifts caused by slack. This allows the pressure roller 27 to rotate stably evenly as the winding thickness increases, ensuring continuous and uniform winding action. This keeps the hot stamping foil neatly stacked during winding, improving the uniformity of the finished roll. This solves the problem of positional shifts and wrinkles that easily occur during the winding process of hot stamping foil.

[0017] Furthermore, such as Figures 2 to 5 As shown, the winding mechanism 2 also includes a motor 21. A first gear 211 is fixedly mounted on the output end of the motor 21. A winding roller 26 is rotatably mounted on the inner side of the side plate 41. A second gear 22 that meshes with the first gear 211 is fixedly mounted on the outer side of the winding roller 26. A mounting bracket 23 is slidably mounted on the outer side of the side plate 41. A second groove 411 is provided at the corresponding position of the side plate 41 and the mounting bracket 23. A slider structure that cooperates with the second groove 411 is provided on the side wall of the mounting bracket 23. A third gear 231 and a fourth gear 232 that mesh with each other are rotatably mounted inside the mounting bracket 23. The pressure roller 27 is fixedly mounted with a fifth gear 25 that meshes with the fourth gear 232. The axle of the second gear 22 is hinged to the axle of the third gear 231 through the first connecting rod 221, and the axle of the fourth gear 232 is hinged to the axle of the fifth gear 25 through the second connecting rod 251. The motor 21 drives the take-up roller 26 to rotate synchronously in opposite directions with the pressure roller 27 through the first gear 211, the second gear 22, the third gear 231, the fourth gear 232 and the fifth gear 25, so as to ensure that the hot stamping foil maintains a stable tension and travel trajectory during the conveying process.

[0018] Furthermore, such as Figures 6 to 7 As shown, the adjustment mechanism 3 also includes a fixed base 311, which is fixedly installed on the outside of the fixed sleeve 31. A fixed ring 322 is fixedly installed on the outside of the threaded sleeve 32, and a limit block 321 is fixedly installed on the outside of the threaded sleeve 32. A sliding groove is opened at the corresponding position of the fixed sleeve 31 and the limit block 321, and the limit block 321 is slidably installed inside the sliding groove. A threaded rod 34 is threadedly installed inside the threaded sleeve 32. The threaded rod 34 is rotatably installed between the side plate 41 and the top inner wall of the first sliding groove 241. A handwheel 35 is fixedly installed on the top of the threaded rod 34. By rotating the threaded rod 34, the position of the threaded sleeve 32 inside the fixed sleeve 31 can be adjusted, thereby changing the preload of the spring 33 and realizing the control of the pressure intensity of the threaded pressure strip 271 on the hot stamping foil surface. It can be flexibly adjusted according to different hot stamping foil materials, thicknesses and other actual conditions, which enhances the applicability of the device and can better meet diverse production needs.

[0019] Working principle: This embodiment provides a coating device for hot stamping foil production. In use, after the hot stamping foil has been coated inside the coating machine 1, it is wound around the take-up roller 26 via the auxiliary roller 42. Then, the motor 21 is started. The output end of the motor 21 drives the first gear 211 to rotate, which in turn drives the second gear 22 that meshes with it to rotate. This causes the second gear 22 to drive the take-up roller 26 to rotate, thereby performing a take-up operation on the hot stamping foil. During the take-up process, the pressure roller 27 continuously presses on the surface of the hot stamping foil being taken up by the take-up roller 26.

[0020] When the second gear 22 rotates, it drives the third gear 231, which meshes with it inside the mounting frame 23, to rotate. The rotation of the third gear 231 drives the fourth gear 232, which meshes with it inside the mounting frame 23, to rotate. In turn, the fourth gear 232 drives the fifth gear 25 to rotate. The rotation of the fifth gear 25 drives the pressure roller 27 to rotate, and the rotation direction is opposite to that of the take-up roller 26. The threaded pressure strip 271 fixedly installed on the outside of the pressure roller 27 generates an axial pushing force to both sides during rotation to flatten the hot stamping foil and squeeze out the air bubbles in the hot stamping foil stacking process.

[0021] As the hot foil is wound up, it becomes thicker and thicker. The pressure roller 27 moves upward with the thickness, causing the sliding block 24 to slide inside the first groove 241. While the sliding block 24 is sliding, it pushes the fixed sleeve 31, causing the fixed sleeve 31 to move outside the threaded sleeve 32 and compress the spring 33. The spring 33 keeps the threaded pressure strip 271 in contact with the surface of the wound hot foil. As the sliding block 24 moves upward, it drives the fifth gear 25 to move upward. The upward movement of the fifth gear 25 pulls the fourth gear 232 located inside the mounting frame 23 upward through the second connecting rod 251. This causes the mounting frame 23 to slide within the second groove 411 on the surface of the side plate 41, thus maintaining the contact state between the fourth gear 232 and the fifth gear 25. This ensures that the pressure roller 27 continues to rotate during the winding process, allowing the threaded pressure strip 271 to continuously flatten the wound hot foil.

[0022] Turning the handwheel 35 causes the threaded rod 34 to rotate, which in turn moves the threaded sleeve 32 inside the fixed sleeve 31, thereby adjusting the preload of the spring 33 and controlling the pressure intensity of the threaded pressure bar 271 on the hot stamping foil surface.

[0023] The embodiments disclosed herein are preferred embodiments, but are not limited thereto. Those skilled in the art can readily grasp the spirit of this utility model based on the above embodiments and make different extensions and variations. However, as long as they do not depart from the spirit of this utility model, they are all within the protection scope of this utility model.

Claims

1. A coating device for gilding foil production, characterized by, include, Coating machine (1); A take-up base plate (4) is fixedly installed at the discharge position of the coating machine (1). A side plate (41) is fixedly installed on the top of the take-up base plate (4). An auxiliary roller (42) is rotatably installed on the inner side of the side plate (41). The winding mechanism (2) includes a sliding block (24), a pressure roller (27) and a threaded pressure strip (271). The sliding block (24) is slidably installed inside the first groove (241) corresponding to the side plate (41). The pressure roller (27) is rotatably installed inside the sliding block (24). The outer surface of the pressure roller (27) is symmetrically provided with at least one continuous spiral protrusion along the axial direction to form the threaded pressure strip (271). Adjustment mechanism (3) includes a fixed sleeve (31), a threaded sleeve (32) and a spring (33). The fixed sleeve (31) is fixedly installed on the top of the sliding block (24). The threaded sleeve (32) is slidably sleeved inside the fixed sleeve (31). The spring (33) is disposed between the fixed sleeve (31) and the threaded sleeve (32).

2. The coating device for gold foil production according to claim 1, characterized in that, The winding mechanism (2) also includes a motor (21), and a first gear (211) is fixedly installed at the output end of the motor (21). A take-up roller (26) is rotatably mounted on the inner side of the side plate (41), and a second gear (22) that meshes with the first gear (211) is fixedly mounted on the outer side of the take-up roller (26). A mounting bracket (23) is slidably mounted on the outer side of the side plate (41). A third gear (231) and a fourth gear (232) are rotatably mounted inside the mounting bracket (23). The second gear (22) and the third gear (231) are meshed. The pressure roller (27) is fixedly mounted with a fifth gear (25) that meshes with the fourth gear (232).

3. The coating apparatus for hot stamping foil production according to claim 2, characterized in that, The adjustment mechanism (3) further includes a fixed base (311), which is fixedly installed on the outside of the fixed sleeve (31). A fixed ring (322) is fixedly installed on the outside of the threaded sleeve (32), and a limiting block (321) is fixedly installed on the outside of the threaded sleeve (32). A sliding groove is provided at the corresponding position of the fixed sleeve (31) and the limiting block (321), and the limiting block (321) is slidably installed inside the sliding groove. The threaded sleeve (32) has a threaded rod (34) installed inside, and a handwheel (35) is fixedly installed on the top of the threaded rod (34).

4. The coating device for gold foil production according to claim 2, wherein The axle of the second gear (22) is hinged to the axle of the third gear (231) via the first connecting rod (221); The axle of the fourth gear (232) is hinged to the axle of the fifth gear (25) via the second link (251).

5. The coating apparatus for hot stamping foil production according to claim 2, characterized in that, The spiral protrusion of the threaded strip (271) has a rounded edge in the contact area with the hot stamping foil.

6. The coating device for gold foil production according to claim 2, wherein The side plate (41) is provided with a second slide groove (411) at the corresponding position of the mounting bracket (23), and the side wall of the mounting bracket (23) is provided with a slider structure that cooperates with the second slide groove (411).

7. The coating device for gold foil production according to claim 3, wherein The spring (33) is sleeved on the outside of the threaded sleeve (32), and its two ends abut against the fixed base (311) and the fixed ring (322) respectively. The threaded rod (34) is rotatably installed between the side plate (41) and the top inner wall of the first slide groove (241).

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