Glue-free environment-friendly film laminating device
By using ball seats and rollers to detect changes in the thickness of the board material in an adhesive-free environmentally friendly coating device, real-time detection of surface defects on the board material is achieved. This solves the problem of the device being unable to stop in time, reduces production costs, and improves production efficiency.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- YUNNAN XIANGHENG PACKAGING CO LTD
- Filing Date
- 2025-06-07
- Publication Date
- 2026-06-16
AI Technical Summary
Existing adhesive-free environmentally friendly laminating equipment lacks the function of detecting defects on the surface of the boards. This means that if there are dents on the board surface, the machine cannot be stopped in time, resulting in inferior boards still being laminated, which increases production costs.
Design a glue-free, environmentally friendly laminating device. Through the cooperation of ball seat and ball bearing, the thickness change of the board is detected in real time. The ball bearing pushes the connecting rod to move along the positioning tube. The connecting rod contacts or disengages from the trigger switch. The controller detects the signal change and realizes the timely shutdown of the laminating machine and the continuous operation of the chain conveyor, thus avoiding the lamination of inferior boards.
It enables real-time detection of surface defects in boards, preventing inferior boards from being coated, reducing production costs, and improving production efficiency and product quality.
Smart Images

Figure CN224360854U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of film packaging technology, and in particular to an adhesive-free environmentally friendly film coating device. Background Technology
[0002] A laminating machine is a device used to bond plastic film or other materials to the surface of printed materials, paper, boards, etc., by hot or cold pressing. It is mainly used to enhance the waterproofness, wear resistance, aesthetics, or extend the service life of products.
[0003] Existing adhesive-free environmentally friendly laminating equipment lacks automatic detection of board surface quality during use. When defects such as dents or cracks appear on the board surface, the equipment cannot identify them in time and stop the machine, resulting in unqualified boards still being laminated. This not only wastes laminating materials but also increases the cost of subsequent rework, seriously affecting production efficiency and product quality.
[0004] Therefore, given that the existing adhesive-free environmentally friendly laminating devices lack the function of detecting defects on the surface of the boards, and that the device cannot stop in time if there are dents on the board surface, resulting in inferior boards still being laminated and increasing production costs, there is an urgent need to design a new type of adhesive-free environmentally friendly laminating device. Utility Model Content
[0005] In order to overcome the problem that existing adhesive-free environmentally friendly laminating equipment lacks the function of detecting defects on the surface of the board, and that if there are dents on the surface of the board, the equipment cannot stop in time, resulting in inferior boards still being laminated, which increases production costs.
[0006] The technical solution of this utility model is as follows: a glue-free, environmentally friendly film coating device, comprising an installation frame, a crossbeam, a pressing component, a connecting seat, a controller, an installation box, a positioning tube, a trigger switch, a second spring, a connecting rod, a pressure plate, a ball seat, and a ball bearing. A chain conveyor is installed on the lower side of the interior of the installation frame, and the film coating machine body is installed on the upper side of the interior of the installation frame. A crossbeam is installed at the front position inside the installation frame, a pressing component is installed at the bottom of the crossbeam, a connecting seat is installed at the bottom of the pressing component, a controller is installed at the top center of the connecting seat, and an installation box is connected to the bottom of the connecting seat. Several positioning tubes are installed on the top inner side of the installation box, and trigger switches are installed on the top inner side of the installation box, located inside the positioning tubes. A second spring is installed at the upper position inside the positioning tube, and the top of the second spring is connected to the installation box. A connecting rod is inserted and slidably connected to the bottom of the positioning tube. A pressure plate is installed at the upper outer surface of the connecting rod, and the bottom of the second spring is connected to the top of the pressure plate. A ball seat is installed at the bottom of the connecting rod, and a ball bearing is movably connected inside the ball seat.
[0007] Preferably, by setting a ball seat and a ball bearing, when the square sheet is being transported, the ball bearing rolls inside the ball seat due to friction. Simultaneously, influenced by the sheet thickness, the ball bearing pushes the connecting rod upwards along the positioning tube. During this movement, the second spring contracts under the pressure of the pressure plate, and the top of the connecting rod remains in contact with the trigger switch. If there is a depression on the upper surface of the sheet, the second spring rebounds when the ball bearing reaches that position, pushing the connecting rod downwards, thus removing the contact between the connecting rod and the trigger switch. The controller can capture this signal, thereby stopping the laminating machine while maintaining the operation of the chain conveyor. This moves the sheet with surface defects to one station, preventing it from being laminated. This solves the problem that existing adhesive-free environmentally friendly laminating devices lack the function of detecting surface defects in the sheet, and if there are depressions on the sheet surface, the device cannot stop in time, resulting in inferior sheets still being laminated, increasing production costs.
[0008] Preferably, the clamping assembly includes a slide rod, a positioning seat, a guide cylinder, and a connecting plate; slide rods are slidably connected to the top left and right sides of the crossbeam, and positioning seats are installed at the bottom of the crossbeam corresponding to the positions of the two slide rods. A guide cylinder is installed at the bottom of the positioning seat, and a connecting plate is installed through the positioning seat and the guide cylinder of the slide rod. The bottom of the connecting plate is connected to the top of the connecting seat.
[0009] Preferably, the clamping assembly also includes a first spring; the first spring is sleeved on the lower part of the slide rod, the bottom of the first spring is connected to the top of the connecting plate, and the top of the first spring is connected to the bottom of the guide cylinder.
[0010] Preferably, a limit ring is installed at the middle position of the outer surface of the connecting rod, and a limit plate is threaded to the bottom of the positioning tube.
[0011] Preferably, a fixing plate is provided inside the mounting frame at the rear of the laminating machine body. Drive wheels are rotatably connected to the lower left and right sides of the rear surface of the fixing plate. Belts are fitted on the outer sides of the two drive wheels, and mounting seats are connected to the lower side of the belts. Blades are installed at the bottom of the mounting seats.
[0012] Preferably, a drive motor is installed on the front side of the fixed plate corresponding to the position of the right transmission wheel, and the output end of the drive motor passes through the fixed plate and is connected to the right transmission wheel.
[0013] Preferably, two symmetrical weight-reducing grooves are provided on the front side of the fixing plate, and two symmetrical fixing blocks are installed on the front side of the fixing plate near the side, with the top of the fixing blocks connected to the mounting frame.
[0014] The beneficial effects of this utility model are:
[0015] 1. By setting up a ball seat and a ball bearing, the cooperation between the ball seat and the ball bearing enables the transmission and detection of square plates. When the plate is being conveyed, the ball bearing is driven by the friction of the plate to roll inside the ball seat. Due to the thickness of the plate, the ball bearing will push the connecting rod to move upward along the positioning tube. At this time, the second spring is compressed by the pressure plate, so that the top of the connecting rod keeps in contact with the trigger switch. When there is a depression on the surface of the plate, the ball bearing moves to the depression area, which will cause the second spring to rebound, driving the connecting rod to move downward, causing the connecting rod to disengage from the trigger switch. The controller will immediately detect this signal change and stop the operation of the laminating machine body, while keeping the chain conveyor working, thereby conveying the defective plate to the next station and avoiding laminating it. Attached Figure Description
[0016] Figure 1 The diagram shown is a three-dimensional structural schematic of an adhesive-free environmentally friendly film coating device according to this utility model.
[0017] Figure 2 The diagram shown is a three-dimensional structural schematic of the pressing component of a glue-free, environmentally friendly film coating device according to this utility model.
[0018] Figure 3 The diagram shown is a three-dimensional structural diagram of the internal structure of the installation box of the adhesive-free environmentally friendly film coating device of this utility model.
[0019] Figure 4 The diagram shown is a three-dimensional structural schematic of the positioning tube of a glue-free, environmentally friendly film coating device according to this utility model.
[0020] Figure 5 The diagram shown is a three-dimensional structural schematic of the connecting rod of an adhesive-free environmentally friendly film coating device according to this utility model.
[0021] Figure 6 The diagram shown is a three-dimensional structural schematic of the blade of a glue-free, environmentally friendly coating device according to this utility model.
[0022] Explanation of reference numerals in the attached drawings: 1. Mounting frame; 2. Chain conveyor; 3. Laminating machine body; 4. Crossbeam; 51. Slide rod; 52. Positioning seat; 53. Guide cylinder; 54. Connecting plate; 55. First spring; 6. Connecting seat; 7. Controller; 8. Mounting box; 9. Positioning tube; 10. Trigger switch; 11. Second spring; 12. Connecting rod; 13. Pressure plate; 14. Ball seat; 15. Ball bearing; 16. Limiting ring; 17. Limiting piece; 18. Fixing plate; 19. Transmission wheel; 20. Belt; 21. Mounting seat; 22. Blade; 23. Drive motor; 24. Weight reduction groove; 25. Fixing block. Detailed Implementation
[0023] The present invention will be further described below with reference to the accompanying drawings and embodiments.
[0024] Please see Figures 1-6 This utility model provides an embodiment: a glue-free, environmentally friendly film-coating device, including a mounting frame 1, a crossbeam 4, a pressing assembly, a connecting seat 6, a controller 7, a mounting box 8, a positioning tube 9, a trigger switch 10, a second spring 11, a connecting rod 12, a pressure plate 13, a ball seat 14, and a ball bearing 15. A chain conveyor 2 is installed on the lower side of the interior of the mounting frame 1, and the film-coating machine body 3 is installed on the upper side of the interior of the mounting frame 1. The crossbeam 4 is installed at the front position inside the mounting frame 1, and a pressing assembly is provided at the bottom of the crossbeam 4. A connecting base 6 is installed at the bottom, and a controller 7 is installed at the top center of the connecting base 6. A mounting box 8 is connected to the bottom of the connecting base 6. Several positioning tubes 9 are installed on the top inner side of the mounting box 8. A trigger switch 10 is installed on the top inner side of each positioning tube 9. A second spring 11 is installed near the upper part of the inside of each positioning tube 9. The top of the second spring 11 is connected to the mounting box 8. A connecting rod 12 is slidably inserted into the bottom of the positioning tube 9. A pressure plate 13 is installed near the upper outer surface of the connecting rod 12. The second spring 11... The bottom of the connecting rod 12 is connected to the top of the pressure plate 13. A ball seat 14 is installed at the bottom of the connecting rod 12. A ball bearing 15 is movably connected inside the ball seat 14. The real-time detection of the conveying status of the square plate is achieved through the cooperation of the ball seat 14 and the ball bearing 15. During the conveying process, the friction between the plate and the ball bearing 15 drives the ball bearing 15 to roll inside the ball seat 14. Due to the standard thickness of the plate, the ball bearing 15 pushes the connecting rod 12 to move upward along the positioning tube 9. At this time, the second spring 11 is compressed by the pressure plate 13, so that the top of the connecting rod 12 is connected to the trigger. The switch 10 maintains stable contact. When a dent appears on the surface of the board, the ball 15 will fall into the dented area, causing the second spring 11 to exert its restoring force, driving the connecting rod 12 to move downward along the positioning tube 9. This interrupts the contact between the connecting rod 12 and the trigger switch 10. The control system monitors the signal change in real time. When the trigger switch 10 is detected to be disconnected, the operation of the laminating machine body 3 is stopped immediately, while the normal operation of the chain conveyor 2 is maintained. This allows the defective board to be transported to the subsequent process, avoiding laminating the unqualified board.
[0025] Please see Figures 2-5In this embodiment, the clamping assembly includes a slide rod 51, a positioning seat 52, a guide cylinder 53, and a connecting plate 54. Slide rods 51 are slidably connected to the top left and right sides of the crossbeam 4. Positioning seats 52 are installed at the bottom of the crossbeam 4 corresponding to the positions of the two slide rods 51. Guide cylinders 53 are installed at the bottom of the positioning seats 52. A connecting plate 54 is installed through the positioning seats 52 and the guide cylinders 53 of the slide rod 51. The bottom of the connecting plate 54 is connected to the top of the connecting seat 6. By setting the guide cylinder 53 and the slide rod 51, the slide rod 51 can slide along the guide cylinder 53, thereby adjusting the height of the bottom connecting seat 6. The clamping assembly also includes... A first spring 55 is provided; the first spring 55 is sleeved on the lower part of the slide rod 51. The bottom of the first spring 55 is connected to the top of the connecting plate 54, and the top of the first spring 55 is connected to the bottom of the guide cylinder 53. By setting the first spring 55, the extension and contraction of the second spring 11 can be compensated, so that the ball 15 can always be in contact with the plate. A limit ring 16 is installed in the middle of the outer surface of the connecting rod 12. The bottom of the positioning tube 9 is threadedly connected to a limit piece 17. By setting the limit ring 16 and the limit piece 17, the position of the connecting rod 12 can be restricted, preventing the connecting rod 12 from slipping off the bottom of the positioning tube 9.
[0026] Please see Figure 1 and Figure 6 In this embodiment, a fixing plate 18 is provided inside the mounting frame 1 at the rear side of the laminating machine body 3. Drive wheels 19 are rotatably connected to the lower left and right sides of the rear surface of the fixing plate 18. A belt 20 is fitted around the outer side of each drive wheel 19, and a mounting base 21 is connected to the lower side of the belt 20. A blade 22 is mounted on the bottom of the mounting base 21. By setting the drive wheels 19, their rotation drives the belt 20 to move, thereby causing the mounting base 21 to drive the blade 22 to cut the film roll. A drive motor is installed on the front side of the fixing plate 18 corresponding to the position of the right drive wheel 19. 23. The output end of the drive motor 23 passes through the fixed plate 18 and is connected to the transmission wheel 19 on the right side. By setting the drive motor 23, its output end can drive the transmission wheel 19 on the right side to rotate during operation, thereby realizing the automatic cutting function. Two symmetrical weight-reducing grooves 24 are opened on the front side of the fixed plate 18. Two symmetrical fixing blocks 25 are installed on the front side of the fixed plate 18 near the side. The top of the fixing blocks 25 is connected to the mounting frame 1. By setting the weight-reducing grooves 24 and fixing blocks 25, the weight of the fixed plate 18 can be reduced while the installation strength of the fixed plate 18 can be improved to prevent loosening.
[0027] During operation, the sheet material is placed from the left side of the chain conveyor 2 and conveyed by the chain conveyor 2. When it moves to the underside of the mounting box 8, the ball bearing 15, affected by the thickness of the sheet material, drives the connecting rod 12 to move upward and squeezes the second spring 11, so that the top of the connecting rod 12 keeps in contact with the trigger switch 10. When the ball bearing 15 moves to the concave position on the surface of the sheet material, the second spring 11 rebounds, causing the connecting rod 12 to separate from the trigger switch 10. The controller 7 captures the signal and stops the operation of the laminating machine body 3, while keeping the chain conveyor 2 running. This allows the inferior sheet material to be moved to the right to prevent it from being laminated. Then, the laminating machine body 3 is restarted to complete the laminating operation on subsequent sheet materials.
[0028] Through the above steps, by setting up a ball seat 14, the ball seat 14 and the ball bearing 15 monitor the thickness of the square plate being conveyed in real time. When the plate is being conveyed normally, its surface friction drives the ball bearing 15 to roll in the ball seat 14 and pushes the connecting rod 12 to move upward along the positioning tube 9, compressing the second spring 11, so that the top of the connecting rod 12 continuously contacts the trigger switch 10. If there is a depression on the surface of the plate, the ball bearing 15 falls, the second spring 11 rebounds, and drives the connecting rod 12 to move downward, causing the trigger switch 10 to open. The controller 7 detects the signal change in real time and immediately stops the operation of the laminating machine body 3, while keeping the chain conveyor 2 working to send the defective plate to the next station, avoiding ineffective lamination. This solves the problem that the existing glue-free adhesive environmentally friendly laminating device lacks the function of detecting defects on the surface of the plate. If there is a depression on the surface of the plate, the device cannot stop in time, resulting in inferior plates still being laminated, which increases production costs.
Claims
1. A glue-free, environmentally friendly film coating device, comprising an installation frame (1); characterized in that: It also includes a crossbeam (4), a clamping assembly, a connecting seat (6), a controller (7), a mounting box (8), a positioning tube (9), a trigger switch (10), a second spring (11), a connecting rod (12), a pressure plate (13), a ball seat (14), and a ball bearing (15). A chain conveyor (2) is installed on the lower inside of the mounting frame (1). A laminating machine body (3) is installed on the upper inside of the mounting frame (1). A crossbeam (4) is installed at the front inside the mounting frame (1). A clamping assembly is provided at the bottom of the crossbeam (4). A connecting seat (6) is installed at the bottom of the clamping assembly. A controller (7) is installed at the top center of the connecting seat (6). The bottom of the connecting seat (6) is connected to... A mounting box (8) is attached. Several positioning tubes (9) are installed on the top inner side of the mounting box (8). Trigger switches (10) are provided on the top inner side of the mounting box (8) and inside the positioning tubes (9). A second spring (11) is provided at the upper position inside the positioning tube (9). The top of the second spring (11) is connected to the mounting box (8). A connecting rod (12) is inserted and slidably connected to the bottom of the positioning tube (9). A pressure plate (13) is provided at the upper position on the outer surface of the connecting rod (12). The bottom of the second spring (11) is connected to the top of the pressure plate (13). A ball seat (14) is installed at the bottom of the connecting rod (12). A ball ball (15) is movably connected inside the ball seat (14).
2. The adhesive-free environmentally friendly coating device according to claim 1, characterized in that: The clamping assembly includes a slide rod (51), a positioning seat (52), a guide cylinder (53), and a connecting plate (54). The top left and right sides of the crossbeam (4) are slidably connected with slide rods (51). The bottom of the crossbeam (4) is equipped with positioning seats (52) corresponding to the positions of the two slide rods (51). The bottom of the positioning seat (52) is equipped with a guide cylinder (53). The slide rod (51) passes through the positioning seat (52) and the guide cylinder (53) and is equipped with a connecting plate (54). The bottom of the connecting plate (54) is connected to the top of the connecting seat (6).
3. The adhesive-free environmentally friendly coating device according to claim 2, characterized in that: The clamping assembly also includes a first spring (55); the first spring (55) is sleeved on the lower part of the slide bar (51), the bottom of the first spring (55) is connected to the top of the connecting plate (54), and the top of the first spring (55) is connected to the bottom of the guide cylinder (53).
4. The adhesive-free environmentally friendly coating device according to claim 1, characterized in that: A limit ring (16) is installed at the middle position of the outer surface of the connecting rod (12), and a limit piece (17) is threaded to the bottom of the positioning tube (9).
5. The adhesive-free environmentally friendly coating device according to claim 1, characterized in that: The mounting frame (1) is located inside the rear side of the film-coating machine body (3) and a fixing plate (18) is provided. The lower left and right sides of the rear surface of the fixing plate (18) are rotatably connected to the drive wheels (19). The outer sides of the two drive wheels (19) are fitted with belts (20). The lower side of the belts (20) is connected to the mounting base (21). The bottom of the mounting base (21) is fitted with a blade (22).
6. The adhesive-free environmentally friendly coating device according to claim 5, characterized in that: A drive motor (23) is installed on the front side of the fixed plate (18) at the position corresponding to the right transmission wheel (19). The output end of the drive motor (23) passes through the fixed plate (18) and is connected to the right transmission wheel (19).
7. The adhesive-free environmentally friendly coating device according to claim 5, characterized in that: Two symmetrical weight-reducing grooves (24) are opened on the front side of the fixing plate (18), and two symmetrical fixing blocks (25) are installed on the front side of the fixing plate (18) near the side. The top of the fixing blocks (25) is connected to the mounting frame (1).