Label paper coating coating device

Abstract

The utility model discloses a label paper coating device which comprises a base and a winding part for conveying label paper, a support is fixed to the outer wall of the top of the base, a rotating assembly is installed on the outer wall of the top of the support, a rotating disc is fixed to the bottom of the rotating assembly, an elastic piece is installed on the rotating disc, and a coating head is fixed to the bottom of the elastic piece. A cushion plate is fixed to the outer wall of the top of the base, a storage box is fixed to the top of the cushion plate, a conical roller is movably connected between the inner walls of the two sides of the storage box, and a connecting frame is welded to the outer wall of one side of the storage box. According to the utility model, the rotating motor drives the conical roller to rotate in the storage box, so that the surface of the conical roller uniformly absorbs a coating, and meanwhile, the rotating assembly drives the coating head to rotate, contact with the surface of the conical roller and rotate relative to the surface of the conical roller, so that the coating is uniformly coated on the lower surface of the coating head; and the coating on the coating head can be uniformly coated on the label paper, so that the coating uniformity of the coating is effectively ensured.

Description

Technical Field

[0001] This utility model relates to the field of label paper coating technology, and in particular to a label paper coating device. Background Technology

[0002] In the existing technology, in the field of label paper production and processing, the coating process is one of the key links that determines the final quality and performance of the label paper. A high-quality coating can not only improve the appearance and texture of the label paper, such as giving it gloss and color saturation, but also enhance its functionality, such as improving its waterproof, oil-proof, wear-resistant, and scratch-resistant properties, to meet the diverse needs of different application scenarios (such as food packaging, logistics labels, electronic device markings, etc.). Achieving uniform coating on the surface of the label paper is the core element to ensure the stability of label paper quality and enhance product competitiveness.

[0003] A search revealed a Chinese patent application with patent number 202420322277.5, which discloses a label paper coating device, including a working box. The working box has a top plate on top and an operating platform fixed to the bottom of the inner wall of the working box. A coating device for coating the label paper body is provided above the operating platform, and a first rotating rod is provided on one side of the coating device.

[0004] The label paper coating device in the above patent has the following shortcomings: when the glue is squeezed out from the coating plate through the glue outlet tube, the glue cannot be evenly distributed on the surface of the coating plate because the outer diameter of the glue outlet tube is smaller than the outer diameter of the coating plate, so the uniformity of glue coating on the label paper cannot be guaranteed during coating. Utility Model Content

[0005] The purpose of this invention is to address the shortcomings of existing technologies by proposing a label paper coating device.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A label paper coating device includes a base and a winding section for conveying label paper. A bracket is fixed to the top outer wall of the base, and a rotating component is installed on the top outer wall of the bracket. A turntable is fixed to the bottom of the rotating component, and an elastic element is installed on the turntable. A coating head is fixed to the bottom of the elastic element. A pad is fixed to the top outer wall of the base, and a storage box is fixed to the top of the pad. A conical roller is movably connected between the inner walls of the two sides of the storage box. A connecting frame is welded to one outer wall of the storage box, and a rotary motor is fixed to one outer wall of the connecting frame. The output end of the rotary motor is connected to one end of the conical roller through a coupling.

[0008] As a further embodiment of this utility model: the rotating assembly includes a drive motor and a connecting shaft. The drive motor is fixed to the top outer wall of the bracket, and the connecting shaft is connected to the output end of the drive motor through a coupling. The bottom of the connecting shaft is fixedly connected to the turntable.

[0009] As a further embodiment of this utility model: the elastic element includes a spring and a T-shaped rod. The T-shaped rod is movably connected to the inner wall of the through hole opened on the surface of the turntable, and the spring is sleeved on the outer wall of the T-shaped rod. The two ends of the spring are respectively fixed to the inner wall of the top of the T-shaped rod and the outer wall of the top of the turntable.

[0010] As a further embodiment of this utility model: the winding part includes a winding assembly and an unwinding assembly. The winding assembly includes a winding motor and a mounting plate. The mounting plate is fixed to the top outer wall of the base, and the winding motor is fixed to one side outer wall of the mounting plate. The output end of the winding motor is connected to a winding roller via a coupling.

[0011] As a further embodiment of this utility model: a winding roller is sleeved on the outer wall of the winding roller, and a nut is connected to one end of the winding roller via an external thread.

[0012] As a further embodiment of this utility model: the unwinding assembly includes a second winding roller and a second mounting plate. The second mounting plate is fixed to the top outer wall of the base, and the second winding roller is movably connected to the side wall of the second mounting plate. A coil spring is installed between the outer circumference of the second winding roller and the outer wall of one side of the second mounting plate.

[0013] As a further embodiment of this utility model: a second winding drum is sleeved on the outer wall of the second winding roller, and a nut is connected to one end of the second winding roller via an external thread.

[0014] As a further embodiment of this utility model: an electric telescopic rod is fixed to the top outer wall of the bracket, and a pressure plate is fixed to the output end of the electric telescopic rod by a pin, and the pressure plate and the T-shaped rod are used in conjunction.

[0015] As a further embodiment of this utility model: a guide assembly is installed on the top outer wall of the base. The guide assembly includes a vertical plate and guide rollers. The vertical plate is fixed to the top outer wall of the base, and both sets of guide rollers are movably connected to the side wall of the vertical plate.

[0016] Compared with the prior art, the present invention provides a label paper coating device, which has the following beneficial effects:

[0017] 1. A rotary motor drives a conical roller to rotate within a storage box, allowing the roller surface to uniformly absorb the coating. Simultaneously, a rotating component drives a coating head to rotate, contacting and rotating relative to the conical roller surface. This uniformly coats the coating onto the lower surface of the coating head. During the label paper winding process, the coating on the coating head can be evenly applied to the label paper, effectively ensuring the uniformity of the coating and improving the coating quality of the label paper.

[0018] 2. The winding section includes a winding assembly and an unwinding assembly. The unwinding assembly uses the elasticity of the coil spring to maintain a certain tension on the label paper during the unwinding process, ensuring that the label paper will not loosen or wrinkle during the conveying process. The winding assembly drives the winding roller to rotate through the winding motor to wind the coated label paper, ensuring the stability and continuity of the label paper conveying, which is beneficial to improving the accuracy and efficiency of coating.

[0019] 3. The combined use of the electric telescopic rod and the pressure plate allows for flexible adjustment of the adhesion between the coating head and the label paper surface, depending on the thickness of the label paper and the coating requirements. When the drive motor moves the T-shaped rod directly under the pressure plate, the electric telescopic rod drives the pressure plate downward, applying pressure to the top of the T-shaped rod, causing the coating head to move downward and fit tightly against the label paper surface, ensuring uniform coating. This design enhances the operational flexibility of the device, enabling it to adapt to the coating work of label paper with different specifications and requirements.

[0020] The parts of the device not covered herein are the same as or can be implemented using existing technologies. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the overall structure of a label paper coating device proposed in this utility model.

[0022] Figure 2 This is a side view structural diagram of a label paper coating device proposed in this utility model;

[0023] Figure 3 This is a schematic diagram of the storage component structure of a label paper coating device proposed in this utility model;

[0024] Figure 4 This is a schematic diagram of the label paper winding assembly structure of a label paper coating device proposed in this utility model;

[0025] Figure 5 This is a schematic diagram of the coating component structure of a label paper coating device proposed in this utility model;

[0026] Figure 6 This is a schematic diagram of the contact between the coating head and the conical roller in a label paper coating device proposed in this utility model.

[0027] In the diagram: 1. Base; 2. Bracket; 3. Drive motor; 4. Electric telescopic rod; 5. Label paper; 6. Rewind motor; 7. Vertical plate; 8. Coating head; 9. Spring; 10. Pad; 11. Storage box; 12. Guide roller; 13. Connecting shaft; 14. Pressure plate; 15. Turntable; 16. Conical roller; 17. Connecting frame; 18. Rotary motor; 19. T-shaped rod; 20. Mounting plate one; 21. Winding roller one; 22. Roller one; 23. Nut one; 24. Nut two; 25. Roller two; 26. Winding roller two; 27. Mounting plate two; 28. Spring. Detailed Implementation

[0028] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0029] In the description of this utility model, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0030] A label paper coating device, in order to ensure uniform coating, such as... Figures 1 to 5 As shown, the device includes a base 1 and a winding section for conveying label paper 5. A bracket 2 is fixed to the top outer wall of the base 1 by bolts, and a rotating component is installed on the top outer wall of the bracket 2. A turntable 15 is fixed to the bottom of the rotating component, and an elastic element is installed on the turntable 15. A coating head 8 is fixed to the bottom of the elastic element. A pad 10 is fixed to the top outer wall of the base 1 by bolts, and a storage box 11 is fixed to the top of the pad 10. A conical roller 16 is rotatably connected between the inner walls on both sides of the storage box 11. A connecting frame 17 is welded to one outer wall of the storage box 11. A rotary motor 18 is fixed to one outer wall of the connecting frame 17 by bolts, and the output end of the rotary motor 18 is connected to one end of the conical roller 16 through a coupling.

[0031] The coating can be stored in the storage box 11. When the rotary motor 18 drives the conical roller 16 to rotate, the surface of the conical roller 16 is evenly dipped in the coating. The rotary component can drive the turntable 15 and the elastic element to rotate, thereby making the coating head 8 rotate synchronously. When the coating head 8 rotates along the surface of the conical roller 16, the relative rotation between the conical roller 16 and the coating head 8 makes the coating on the conical roller 16 evenly coated on the lower surface of the coating head 8, ensuring that the coating head 8 will then evenly coat the label paper 5.

[0032] Please see Figure 6 The conical roller 16 is tilted to ensure that the top of the conical roller 16 and the bottom surface of the coating head 8 can make close contact.

[0033] The tapered roller 16 is tapered because the design requires the tapered roller 16 to roll along the bottom of the coating head 8 to apply the coating. As the coating head 8 rotates with the turntable 15, the linear speeds on the inner and outer sides of the coating head 8 are different. Specifically, the linear speed of the coating head 8 is slower the closer it is to the center of the turntable 15, and faster the further it is from the center of the turntable 15. If a cylindrical roller is used in conjunction with the coating head 8, because the linear speeds on the inner and outer sides of the cylindrical roller are the same when it rotates, there will be a speed difference in the inner and outer directions (radial direction of the turntable 15) when it contacts the coating head 8, which will result in uneven coating thickness on the inner and outer sides of the lower surface of the coating head 8.

[0034] The tapered roller 16 has the same angular velocity at both ends, but its structure, with a smaller inner diameter and a larger outer diameter, results in a slower linear velocity at the inner end and a faster linear velocity at the outer end during rotation, similar to the coating head 8. This ensures that the tapered roller 16 has a uniform velocity in the inner and outer directions of the contact surface when it contacts the coating head 8, thereby improving the uniformity of the coating thickness on both the inner and outer sides of the lower surface of the coating head 8.

[0035] The rotating assembly includes a drive motor 3 and a connecting shaft 13. The drive motor 3 is fixed to the top outer wall of the bracket 2 by bolts, and the connecting shaft 13 is connected to the output end of the drive motor 3 by a coupling. The bottom of the connecting shaft 13 is fixedly connected to the turntable 15.

[0036] The drive motor 3 can drive the connecting shaft 13 and the turntable 15 to rotate, thereby causing the coating head 8 to rotate.

[0037] The elastic element includes a spring 28 and a T-shaped rod 19. The T-shaped rod 19 is slidably connected to the inner wall of the through hole on the surface of the turntable 15, and the spring 28 is sleeved on the outer wall of the T-shaped rod 19. The two ends of the spring 28 are respectively fixed to the inner wall of the top of the T-shaped rod 19 and the outer wall of the top of the turntable 15.

[0038] The elastic force of the spring 28 ensures that after the coating head 8 and the conical roller 16 come into contact with each other, the coating head 8 and the conical roller 16 remain in close contact, thereby ensuring that the conical roller 16 evenly coats the coating on the bottom of the coating head 8.

[0039] It should be noted that, in the initial state, the height of the bottom outer wall of the coating head 8 is lower than the height of the top of the conical arc surface of the conical roller 16. When the coating head 8 and the conical arc surface of the conical roller 16 rotate to fit together, the conical arc surface of the conical roller 16 presses upward on the coating head 8, and the spring 28 is stretched. At this time, the rebound pressure of the spring 28 is used to ensure that the coating head 8 and the conical roller 16 keep in close contact after they come into contact with each other.

[0040] In this embodiment, the height difference between the bottom outer wall of the coating head 8 and the top of the conical arc surface of the conical roller 16 is not large, so the coating head 8 does not need to be provided with a guide structure when it contacts the conical roller 16.

[0041] In some embodiments, a guide arc surface may be provided on the coating head 8. The guide arc surface is located on the side that contacts the conical roller 16 first when the coating head 8 rotates. By providing the guide arc surface, the coating head 8 can be prevented from getting stuck when it contacts the conical roller 16.

[0042] The winding section includes a winding assembly and an unwinding assembly. The winding assembly includes a winding motor 6 and a mounting plate 20. The mounting plate 20 is fixed to the top outer wall of the base 1 by bolts, and the winding motor 6 is fixed to one side outer wall of the mounting plate 20 by bolts. The output end of the winding motor 6 is connected to a winding roller 21 through a coupling. A drum 22 is sleeved on the outer wall of the winding roller 21, and a nut 23 is connected to one end of the winding roller 21 through an external thread.

[0043] The unwinding assembly includes a second winding roller 26 and a second mounting plate 27. The second mounting plate 27 is fixed to the top outer wall of the base 1 by bolts, and the second winding roller 26 is rotatably connected to the side wall of the second mounting plate 27. A coil spring 9 is installed between the outer circumference of the second winding roller 26 and the outer wall of one side of the second mounting plate 27. A second winding drum 25 is sleeved on the outer wall of the second winding roller 26, and a nut 24 is connected to one end of the second winding roller 26 by an external thread.

[0044] After the label paper 5 to be coated is wound onto the second roll 25, the second nut 24 is used to fix the second winding roller 26 and the second roll 25. The winding motor 6 can drive the first winding roller 21 to rotate, so that the first roll 22 can wind the coated label paper 5. The first nut 23 fixes the first roll 22 and the first winding roller 21. The elasticity of the coil spring 9 ensures that the label paper 5 remains taut during the winding and unwinding process.

[0045] It should be noted that when selecting the coil spring 9, the stroke of the coil spring 9 must be sufficient to support the winding drum 22 in winding the coated label paper 5. This is to avoid the winding section jamming due to the coil spring 9's stroke being exhausted before the winding drum 22 can completely wind up a roll of finished product if the coil spring 9's stroke is too short.

[0046] After the first roll 22 finishes winding up a roll of finished product, the label paper 5 is cut off, the coil spring 9 returns to its elastic state, the first roll 22 is removed and replaced with a new first roll 22, so as to achieve continuous coating of the label paper 5.

[0047] The top outer wall of the bracket 2 is fixed with an electric telescopic rod 4 by bolts, and the output end of the electric telescopic rod 4 is fixed with a pressure plate 14 by a pin, and the pressure plate 14 and the T-shaped rod 19 are used together.

[0048] When the drive motor 3 drives the T-shaped rod 19 to move directly below the pressure plate 14, the electric telescopic rod 4 drives the pressure plate 14 to move down, so that the pressure plate 14 applies pressure to the top of the T-shaped rod 19, thereby making the coating head 8 adhere to the surface of the label paper 5 during the downward movement. When the label paper 5 is wound up, the coating on the coating head 8 is evenly coated on the surface of the label paper 5.

[0049] A guide assembly is installed on the top outer wall of the base 1. The guide assembly includes a vertical plate 7 and guide rollers 12. The vertical plate 7 is fixed to the top outer wall of the base 1 by bolts, and both sets of guide rollers 12 are rotatably connected to the side wall of the vertical plate 7.

[0050] The guide roller 12 can be used to guide the movement path of the label paper 5 during winding and unwinding.

[0051] Working principle: Storage box 11 is used to store coatings. Rotary motor 18 drives conical roller 16 to rotate inside storage box 11, so that the surface of conical roller 16 can evenly absorb coatings. Drive motor 3 starts and drives turntable 15 to rotate through connecting shaft 13, which in turn causes coating head 8 fixed at the bottom of elastic element to rotate synchronously. During the rotation of coating head 8, its bottom contacts the surface of conical roller 16. Due to the relative rotation between conical roller 16 and coating head 8, the coating on conical roller 16 is evenly coated on the lower surface of coating head 8. The elastic force of spring 28 ensures that coating head 8 and conical roller 16 are in close contact, ensuring coating uniformity. Label paper 5 to be coated is wound onto roll 25. Nut 24 is used to fix winding roller 26 and roll 25. Winding roller 26 is connected to mounting plate 27 through coil spring 9. The spring 9 keeps the label paper 5 taut during unwinding. After the label paper 5 is output from the second roll 25, it passes between two sets of guide rollers 12. The guide rollers 12 guide the movement path of the label paper 5 to ensure smooth delivery. The winding motor 6 drives the first winding roller 21 to rotate, and the first roll 22 rotates accordingly to wind the coated label paper 5. The nut 23 is used to fix the first winding roller 21 and the first roll 22. When the drive motor 3 drives the T-shaped rod 19 to move directly below the pressure plate 14, the electric telescopic rod 4 starts to drive the pressure plate 14 to move down and apply pressure to the top of the T-shaped rod 19, so that the coating head 8 moves down and fits against the surface of the label paper 5. During the winding process of the label paper 5, the coating on the coating head 8 is evenly coated on the surface of the label paper 5, completing the coating work of the label paper.

[0052] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A label paper coating apparatus, comprising a base (1) and a winding section for conveying label paper (5), characterized in that, The base (1) has a bracket (2) fixed on its top outer wall, and a rotating component is installed on the top outer wall of the bracket (2). A turntable (15) is fixed at the bottom of the rotating component, and an elastic element is installed on the turntable (15). A coating head (8) is fixed at the bottom of the elastic element. A pad (10) is fixed on the top outer wall of the base (1), and a storage box (11) is fixed on the top of the pad (10). A conical roller (16) is movably connected between the inner walls on both sides of the storage box (11). A connecting frame (17) is welded to one side of the outer wall of the storage box (11). A rotary motor (18) is fixed to one side of the outer wall of the connecting frame (17), and the output end of the rotary motor (18) is connected to one end of the conical roller (16) through a coupling.

2. The label paper coating apparatus according to claim 1, characterized in that, The rotating assembly includes a drive motor (3) and a connecting shaft (13). The drive motor (3) is fixed to the top outer wall of the bracket (2), and the connecting shaft (13) is connected to the output end of the drive motor (3) through a coupling. The bottom of the connecting shaft (13) is fixedly connected to the turntable (15).

3. The label paper coating apparatus according to claim 2, characterized in that, The elastic element includes a spring (28) and a T-shaped rod (19). The T-shaped rod (19) is movably connected to the inner wall of the through hole opened on the surface of the turntable (15), and the spring (28) is sleeved on the outer wall of the T-shaped rod (19). The two ends of the spring (28) are respectively fixed to the inner wall of the top of the T-shaped rod (19) and the outer wall of the top of the turntable (15).

4. The label paper coating apparatus according to claim 3, characterized in that, The winding section includes a winding assembly and an unwinding assembly. The winding assembly includes a winding motor (6) and a mounting plate (20). The mounting plate (20) is fixed to the top outer wall of the base (1), and the winding motor (6) is fixed to one side outer wall of the mounting plate (20). The output end of the winding motor (6) is connected to a winding roller (21) via a coupling.

5. The label paper coating apparatus according to claim 4, characterized in that, The outer wall of the winding roller (21) is fitted with a drum (22), and one end of the winding roller (21) is connected to a nut (23) via an external thread.

6. The label paper coating apparatus according to claim 5, characterized in that, The unwinding assembly includes a second winding roller (26) and a second mounting plate (27). The second mounting plate (27) is fixed to the top outer wall of the base (1), and the second winding roller (26) is movably connected to the side wall of the second mounting plate (27). A coil spring (9) is installed between the outer circumference of the second winding roller (26) and the outer side wall of the second mounting plate (27).

7. The label paper coating apparatus according to claim 6, characterized in that, The outer wall of the second winding roller (26) is sleeved with a second winding drum (25), and one end of the second winding roller (26) is connected to a second nut (24) via an external thread.

8. The label paper coating apparatus according to claim 7, characterized in that, An electric telescopic rod (4) is fixed to the top outer wall of the bracket (2), and a pressure plate (14) is fixed to the output end of the electric telescopic rod (4) by a pin, and the pressure plate (14) and the T-shaped rod (19) are used together.

9. A label paper coating apparatus according to claim 8, characterized in that, The base (1) is equipped with a guide assembly on its top outer wall. The guide assembly includes a vertical plate (7) and guide rollers (12). The vertical plate (7) is fixed to the top outer wall of the base (1), and both sets of guide rollers (12) are movably connected to the side wall of the vertical plate (7).

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