Film coating device for paper cup processing

Abstract

The invention relates to a film coating device for paper cup processing, and relates to the technical field of paper cup production, the film coating device comprises a pressing frame, the pressing frame is installed at the output end of a coating installation assembly through a linkage mechanism, the pressing frame is installed on a rack in a sliding mode, the coating installation assembly is installed at the output end of a moving module, and the coating installation assembly and the rack are in relative sliding connection. Through the design of the downward pressing frame and the rectangular limiting area, paper cup raw materials are precisely limited in the coating area, and coating liquid is prevented from overflowing to the vacuum conveying belt, so that adsorption holes are prevented from being blocked, the maintenance frequency is reduced, meanwhile, the service life of the vacuum conveying belt is prolonged, the downtime caused by cleaning is shortened, and the production efficiency is improved. Therefore, the core problem that the coating liquid pollutes the vacuum conveying belt can be solved.

Description

Technical Field

[0001] This invention relates to the field of paper cup production technology, specifically to a coating device for paper cup processing. Background Technology

[0002] Paper cup coating refers to covering the inner or outer wall of a paper cup with a waterproof or oil-proof material to prevent the paper cup from softening, leaking, or breaking due to contact with liquid. Currently, the mainstream coating materials include PE coating and waxed cups. In particular, PE coating requires special equipment to perform the coating operation on the paper cup so that the paper cup raw material can be directly coated.

[0003] For example, in the patent application document with application number 202510034940.0, a coating device for processing PLA biodegradable paper cups is disclosed, and it is specifically disclosed that by cutting the paper cup raw material into fan-shaped areas and coating the fan-shaped areas, the problem of waste of polyethylene plastic coating can be solved.

[0004] In the above technical solution, the paper cup raw material is vacuum adsorbed onto the conveyor belt. The coating area of ​​the paper cup raw material is a set fan-shaped area. During the coating process, due to inertia or low precision of the pushing area, the coating material may fall onto the vacuum conveyor belt, which will have a certain impact on the adsorption holes of the vacuum conveyor belt. Therefore, the vacuum conveyor belt needs to be treated regularly. Summary of the Invention

[0005] The purpose of this invention is to provide a coating apparatus for paper cup processing.

[0006] The technical problem solved by this invention is to address the issue in the prior art where coating materials fall onto the vacuum conveyor belt, causing a certain impact on the adsorption pores of the vacuum conveyor belt.

[0007] The present invention can be achieved by the following technical solution: a coating device for paper cup processing, including a pressing frame, the pressing frame is connected to the output end of the coating mounting component through a linkage mechanism, the pressing frame is slidably mounted on the frame, and the coating mounting component is mounted on the output end of the moving module, the coating mounting component and the frame are slidably connected relative to each other.

[0008] A further technical improvement of the present invention is that: the pressure frame is fixedly installed at the bottom end of the connecting rod, the connecting rod and the frame are slidably connected by a connecting spring, and a linkage mechanism is provided at the top of the connecting rod.

[0009] A further technical improvement of the present invention is that: the linkage mechanism includes a movable baffle, the movable baffle is installed on the coating mounting assembly, and the movable baffle is provided with a mating arc plate on its edge, and a mating plane is provided at the bottom of the movable baffle. The mating arc plate and the mating plane are connected, and the top of the mating tie rod is fixed with a mating arc end, which respectively mates with the mating arc plate and the mating plane.

[0010] A further technical improvement of the present invention is that: a plurality of screw holes are provided on the lower pressure frame, and a side mounting base is detachably installed on the lower pressure frame by bolts, and a first support limiting rod and a second support limiting rod are respectively fixedly installed on the side mounting base.

[0011] A further technical improvement of the present invention is that: a first sensor mating end is fixedly installed on the first support limiting rod, and a second sensor mating end is fixedly installed on the second support limiting rod; bottom support frames are respectively provided on both sides of the coating mounting assembly, and a first proximity sensor and a second proximity sensor for realizing proximity sensing are fixed on the bottom support frames.

[0012] A further technical improvement of the present invention is that the coating mounting assembly includes a longitudinal housing, wherein the output end of the longitudinal housing is provided with a spray base, a detachable base is provided on the spray base, and a spray head for uniformly coating the coating liquid is provided on the detachable base.

[0013] A further technical improvement of the present invention is that: a central sliding groove is uniformly provided on the lower pressure frame, wherein a nozzle is uniformly fixed on the central sliding groove and the nozzle is connected to the output end of the air pump.

[0014] A further technical improvement of the present invention is that: the longitudinal housing includes a longitudinal push rod, which is fixedly installed on the ejection base, and a longitudinal tie rod is fixedly installed at the end of the push rod. The longitudinal tie rod is slidably installed inside the longitudinal housing by a longitudinal tension spring. An internal eccentric wheel is provided inside the longitudinal housing by an internal motor, and the internal eccentric wheel acts on the end of the longitudinal tie rod.

[0015] Compared with the prior art, the present invention has the following beneficial effects: 1. This application uses a “pressure frame + rectangular limiting area” design to precisely limit the paper cup raw material within the coating area, preventing the coating liquid from overflowing into the vacuum conveyor belt, thereby preventing the adsorption holes from becoming clogged, reducing the maintenance frequency, extending the life of the vacuum conveyor belt, and reducing downtime caused by cleaning. Therefore, this application can solve the core problem of coating liquid contaminating the vacuum conveyor belt.

[0016] 2. This application achieves automatic lifting of the lowering frame and synchronous movement of the coating component through the linkage of "moving baffle - cooperating arc plate - cooperating pull rod", ensuring that: the coating start / end position is accurately controllable (real-time feedback through proximity sensor); the coating liquid evenly covers the set fan-shaped area, reducing material waste.

[0017] 3. This application enhances equipment compatibility and maintenance convenience with an adjustable limiting structure: the spacing between the first and second support limiting rods can be adjusted to accommodate paper cup raw materials of different sizes; detachable design: components such as spray heads and side mounting bases can be quickly replaced, simplifying the maintenance process; self-cleaning function: the spray pipes on the lower frame can blow away residual impurities, further reducing the risk of conveyor belt contamination. Attached Figure Description

[0018] To facilitate understanding by those skilled in the art, the present invention will be further described below with reference to the accompanying drawings.

[0019] Figure 1 This is a schematic diagram showing the position of the pressure frame of the present invention; Figure 2 This is a schematic diagram of the structure of the pressure frame of the present invention; Figure 3 This is a schematic diagram showing the longitudinal chassis position of the present invention; Figure 4 For the present invention Figure 3 A magnified view of a section at point A in the middle; Figure 5 This is a schematic diagram of the longitudinal chassis structure of the present invention.

[0020] In the diagram: 1. Movable baffle; 2. Matching arc plate; 3. Movable base; 4. Drive motor; 5. Connecting support rod; 6. Mounting support frame; 7. First proximity sensor; 8. First sensor mating end; 9. Second proximity sensor; 10. Second sensor mating end; 11. Bottom support frame; 12. Matching pull rod; 13. Downward pressure frame; 14. Matching tension spring; 15. Fixed support frame; 16. Matching plane; 17. Matching arc-shaped end; 18. First support limiting rod; 19. Liquid tank; 20. Liquid inlet; 21. Second support limiting rod; 22. Side mounting base; 23. Spraying base; 24. Longitudinal housing; 25. Detachable base; 26. Nozzle; 27. Intermediate chute; 28. Internal eccentric wheel; 29. ​​Longitudinal pull rod; 30. Longitudinal push rod; 31. Longitudinal tension spring. Detailed Implementation

[0021] To further illustrate the technical means and effects of the present invention in achieving its intended purpose, the following detailed description of the specific implementation methods, structures, features, and effects of the present invention, in conjunction with the accompanying drawings and preferred embodiments, is provided below.

[0022] Please see Figure 1-5 As shown, a coating device for paper cup processing includes a movable base 3, which is fixedly mounted on a frame. A drive motor 4 is fixedly mounted on the movable base 3. The output end of the drive motor 4 is provided with a movable module for movement. The output end of the movable module is provided with a connecting support rod 5. A mounting support frame 6 is fixedly mounted at the end of the connecting support rod 5. The output end of the mounting support frame 6 is provided with a coating mounting assembly for coating. A reciprocating pressing frame 13 is provided on the frame. During use, the longitudinal movement of the pressing frame 13 allows it to press against the original paper cup. The material is pressed down and fixed. After fixing, the drive motor 4 drives the moving module, which in turn moves the mounting support frame 6, thereby moving the coating mounting assembly. The coating mounting assembly coats the paper cup material inside the pressing frame 13. The pressing frame 13 limits the paper cup material, and the output end of the coating mounting assembly performs the coating function on the paper cup material. During this process, since the paper cup material is confined between the pressing frames 13, the coating material is prevented from falling onto the vacuum adsorption belt, further avoiding the problem of the vacuum adsorption belt being blocked, extending the cleaning cycle of the vacuum adsorption belt, and ensuring the service life of the vacuum adsorption belt.

[0023] A liquid tank 19 for holding coating liquid is fixedly installed on the mounting support frame 6. At the same time, a liquid inlet 20 for adding coating liquid is connected to the liquid tank 19. In this process, by connecting the liquid tank 19 to the input end of the coating mounting assembly, the liquid tank 19 moves with the coating mounting assembly, so that the liquid output of the coating mounting assembly is relatively stable, thereby ensuring the coating quality of the coating mounting assembly.

[0024] Furthermore, the movable module adopts a screw assembly, that is, a sliding groove is provided on the movable base 3, a movable slider is slidably arranged on the sliding groove, and a screw is rotatably arranged inside the sliding groove. The screw is rotatably installed at the output end of the drive motor 4, and the drive motor 4 drives the screw to rotate. At the same time, the movable slider and the screw are threadedly connected. In use, the drive motor 4 drives the screw, and the movable slider threadedly connected to the screw can move laterally, thereby driving the mounting support frame 6 on which the coating mounting component is installed. The mounting support frame 6 is fixedly connected to the movable slider through the connecting support rod 5.

[0025] Furthermore, movable baffles 1 are symmetrically fixedly installed on the connecting support rod 5. The movable baffles 1 are symmetrically fixedly installed on both sides of the mounting support frame 6. The movable baffles 1 cooperate with the lower pressure frame 13. In use, when the connecting support rod 5 slides under the action of the movable slider, it will drive the movable baffles 1 to move, so that the movable baffles 1 cooperate with the lower pressure frame 13 during the movement, thereby limiting the position of the lower pressure frame 13.

[0026] To limit the movement of the pressing frame 13 and the movable baffle 1, a fixed support frame 15 is fixedly installed on the frame. A mating rod 12 is slidably mounted on the fixed support frame 15, and a mating arc-shaped end 17 is fixed to the end of the mating rod 12. A mating tension spring 14 is provided between the mating arc-shaped end 17 and the fixed support frame 15. The bottom of the mating rod 12 is fixedly connected to the pressing frame 13. The movable baffle 1 is provided with a mating arc plate 2 and a mating plane 16 for mating with the mating arc-shaped end 17. In use, when the movable baffle 1 moves to the edge position, the mating arc-shaped end 17 and the mating arc plate 2 engage. At this time, under the action of the mating tension spring 14, the pressing frame 13 is moved. At the highest point, the vacuum suction belt positioned below the pressure frame 13 moves the paper cup material until it reaches a position below the pressure frame 13, ready for coating. At this point, the vacuum suction belt stops moving, and the drive motor 4 moves the mounting support frame 6. The mating arc plate 2 gradually engages with the mating arc end 17, and after engagement, the mating plane 16 engages with the mating arc end 17. The mating arc end 17 then lowers to its lowest point, and the pressure frame 13 lowers to its lowest point. Therefore, as the mounting support frame 6 continues to move under the action of the drive motor 4, the coating mounting assembly can be positioned appropriately on the pressure frame 13 to perform the coating operation on the paper cup material.

[0027] As a further embodiment of this application, the lower pressure frame 13 is provided with a plurality of screw holes, and a side mounting base 22 is detachably installed on the lower pressure frame 13 by bolts. A first support limiting rod 18 and a second support limiting rod 21 are respectively fixedly installed on the side mounting base 22. In use, by adjusting the distance between the first support limiting rod 18 and the second support limiting rod 21, the first support limiting rod 18 and the second support limiting rod 21 can respectively form a rectangular area with the edge of the lower pressure frame 13. The rectangular area can be used to limit the paper cup material, preventing the paper cup material from moving. At the same time, the rectangular area can also be used to limit the paper cup material, preventing the coating material from falling onto the vacuum conveyor belt, and further preventing the blockage of the holes on the vacuum conveyor belt.

[0028] Furthermore, a first sensor mating end 8 is fixedly installed on the first support limiting rod 18, and a second sensor mating end 10 is fixedly installed on the second support limiting rod 21. Two sets of bottom support frames 11 are fixedly installed at the bottom of the mounting support frame 6, and the coating mounting assembly is installed between adjacent bottom support frames 11. A first proximity sensor 7 and a second proximity sensor 9 for proximity sensing are fixed on the bottom support frame 11. The first proximity sensor 7 is used to sense proximity with the second sensor mating end 10 to determine the starting position of coating. The proximity sensing between the first proximity sensor 7 and the first sensor mating end 8 is used to determine the end of coating. When the second proximity sensor 9 and the second sensor mating end 10 sense proximity, it is used to determine the stability of coating. When the second proximity sensor 9 and the first sensor mating end 8 sense proximity, it is used to determine that coating is completely finished.

[0029] Furthermore, the coating assembly includes a longitudinal housing 24, wherein the output end of the longitudinal housing 24 is provided with a spray base 23, and a detachable base 25 is provided on the spray base 23. The detachable base 25 is provided with a spray head for uniform coating of the coating liquid. In use, the height of the spray base 23 is controlled by the longitudinal housing 24 so that the spray head at the output end of the spray base 23 can act on the paper cup raw material.

[0030] In another embodiment of this application, a central groove 27 is uniformly provided on the lower pressure frame 13, and a nozzle 26 is uniformly fixed on the central groove 27. The nozzle 26 is connected to the output end of the air pump. When the lower pressure frame 13 is at its highest position, there is no paper cup material in the vacuum adsorption belt of the area to be coated, and the adsorption function of the vacuum adsorption belt in that area is removed. At this time, the nozzle 26 on the lower pressure frame 13 directly acts on the vacuum adsorption belt to blow away the impurities present on the vacuum adsorption belt, so as to avoid the impurities affecting the adsorption function of the vacuum adsorption belt.

[0031] The longitudinal housing 24 includes a longitudinal push rod 30, which is fixedly mounted on the ejection base 23. A longitudinal tie rod 29 is fixedly mounted at the end of the longitudinal push rod 30. The longitudinal tie rod 29 is slidably mounted inside the longitudinal housing 24 via a longitudinal tension spring 31. An internal eccentric wheel 28 is provided inside the longitudinal housing 24 by an internal motor, and the internal eccentric wheel 28 acts on the end of the longitudinal tie rod 29.

[0032] In use, by adjusting the distance between the first support limiting rod 18 and the second support limiting rod 21, the first support limiting rod 18 and the second support limiting rod 21 can each form a rectangular area with the edge of the pressing frame 13. This rectangular area can be used to limit the paper cup material, preventing the paper cup material from moving. At the same time, this rectangular area can also be used to limit the paper cup material, preventing the coating material from falling onto the vacuum conveyor belt, and further preventing the blockage of the holes on the vacuum conveyor belt. When the moving baffle 1 moves to the edge position, the cooperating arc end 17 and the cooperating arc plate 2 cooperate. At this time, under the action of the cooperating tension spring 14, the lower pressure frame 13 is moved to the highest position. At this time, the vacuum suction belt set below the lower pressure frame 13 drives the paper cup raw material to move until it moves below the position of the lower pressure frame 13. When the coating operation is required, the vacuum suction belt stops moving. The drive motor 4 drives the mounting support frame 6 to move. At this time, the cooperating arc plate 2 gradually cooperates with the cooperating arc end 17. After the cooperation is completed, the cooperating plane 16 cooperates with the cooperating arc end 17. At this time, the cooperating arc end 17 is lowered to the lowest position, and the lower pressure frame 13 is lowered to the lowest position. Therefore, when the mounting support frame 6 continues to move under the action of the drive motor 4, the coating mounting component can act on the appropriate position of the lower pressure frame 13 to perform the coating operation on the paper cup raw material.

[0033] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention in any way. Although the present invention has been disclosed above with reference to preferred embodiments, it is not intended to limit the present invention. Any person skilled in the art can make some modifications or alterations to the above-disclosed technical content to create equivalent embodiments without departing from the scope of the present invention. Any simple modifications, equivalent changes and alterations made to the above embodiments based on the technical essence of the present invention without departing from the scope of the present invention are within the scope of the present invention.

Claims

1. A coating apparatus for paper cup processing, characterized in that: The device includes a pressure frame (13), which is connected to the output end of the coating mounting assembly via a linkage mechanism. The pressure frame (13) is slidably mounted on the frame, and the coating mounting assembly is mounted on the output end of the mobile module. The coating mounting assembly and the frame are slidably connected relative to each other.

2. The coating apparatus for paper cup processing according to claim 1, characterized in that, The pressure frame (13) is fixedly installed at the bottom end of the connecting rod (12). The connecting rod (12) and the frame are slidably connected by the connecting spring (14). A linkage mechanism is provided at the top of the connecting rod (12).

3. The coating apparatus for paper cup processing according to claim 2, characterized in that, The linkage mechanism includes a movable baffle (1), which is mounted on the coating mounting assembly. The movable baffle (1) has a mating arc plate (2) on its edge and a mating plane (16) on its bottom. The mating arc plate (2) and the mating plane (16) are connected. The top of the mating tie rod (12) is fixed with a mating arc end (17), which mates with the mating arc plate (2) and the mating plane (16) respectively.

4. The coating apparatus for paper cup processing according to claim 1, characterized in that, The lower pressure frame (13) has several screw holes, and a side mounting base (22) is detachably installed on the lower pressure frame (13) by bolts. A first support limiting rod (18) and a second support limiting rod (21) are fixedly installed on the side mounting base (22).

5. A coating apparatus for paper cup processing according to claim 4, characterized in that, A first sensor mating end (8) is fixedly installed on the first support limiting rod (18), and a second sensor mating end (10) is fixedly installed on the second support limiting rod (21). Bottom support frames (11) are respectively provided on both sides of the coating mounting assembly, and a first proximity sensor (7) and a second proximity sensor (9) for realizing proximity sensing are fixed on the bottom support frame (11).

6. The coating apparatus for paper cup processing according to claim 1, characterized in that, The coating mounting assembly includes a longitudinal housing (24), wherein the output end of the longitudinal housing (24) is provided with a spray base (23), a detachable base (25) is provided on the spray base (23), and a spray head for uniformly coating the coating liquid is provided on the detachable base (25).

7. A coating apparatus for paper cup processing according to claim 4, characterized in that, The lower pressure frame (13) is provided with a central sliding groove (27) evenly, and a nozzle (26) is evenly fixed on the central sliding groove (27), which is connected to the output end of the air pump.

8. A coating apparatus for paper cup processing according to claim 6, characterized in that, The longitudinal housing (24) includes a longitudinal push rod (30) inside. The longitudinal push rod (30) is fixedly installed on the ejection base (23). A longitudinal tie rod (29) is fixedly installed at the end of the longitudinal push rod (30). The longitudinal tie rod (29) is slidably installed inside the longitudinal housing (24) by a longitudinal tension spring (31). An internal eccentric wheel (28) is provided inside the longitudinal housing (24) by an internal motor. The internal eccentric wheel (28) acts on the end of the longitudinal tie rod (29).

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