A printed card laminating device

Abstract

This application discloses a card laminating device, relating to the field of card processing technology. It includes a support plate, with a heat-pressing assembly inside the support plate for stretching and cutting the film around the card before heat pressing. An auxiliary assembly outside the support plate cooperates with the heat-pressing assembly to prevent wrinkles in the card lamination. This application achieves cutting without stretching the film by using a limiting frame, avoiding repeated stretching that affects lamination quality. When pressed down, the first inclined block contacts the film first, locally tightening the film around the card through the inclined surface, providing stable tension for subsequent cutting. The second inclined block, placed in a slot, matches the shape of the first inclined block, forming a four-way clamping grip on the card, preventing card displacement during film covering. Continuous downward pressure from the square frame moves the second inclined block, creating a cutting gap, avoiding the problem of traditional devices requiring film movement for cutting.

Description

Technical Field

[0001] This application relates to the field of card processing technology, and in particular to a printing card laminating apparatus. Background Technology

[0002] Card-type products (such as identity cards, payment cards, and collectible cards) require surface lamination after printing to prevent wear and tear on the graphics and extend their lifespan. Existing lamination devices generally employ a continuous roll-to-roll process. For example, Chinese utility model patent CN222697973U discloses a lamination device for printed cards, but it still has the following shortcomings in practical use:

[0003] The patent includes a base plate, side plates, raw material rollers, waste rollers, and a hot-press cutting assembly. The cutting process of this device requires the film to be moved by a cutting plate to achieve cutting. This method causes the film to be stretched and deformed during the cutting process, resulting in loose edges and surface wrinkles after cutting, which seriously affects the quality of the finished product. When each card is laminated, the film is repeatedly stretched by the movement of the cutting plate. Utility Model Content

[0004] To improve the problem of precision defects caused by film displacement, this application provides a printing card coating device.

[0005] The printing card laminating device provided in this application adopts the following technical solution:

[0006] A printing card laminating device includes a support plate, wherein the inside of the support plate is provided with a hot pressing component for stretching and cutting the film around the card before hot pressing, and the outside of the support plate is provided with an auxiliary component for cooperating with the hot pressing component and preventing card lamination wrinkles.

[0007] The hot pressing assembly includes a square frame, on one side of the surface of the square frame are four first inclined blocks of different heights and four cutting plates, and on the inner side of the square frame are four heating plates that are in contact with the surfaces of the four cutting plates.

[0008] The auxiliary component includes a limiting frame fixedly connected to the surface of the support plate. A movable plate adapted to the size of the limiting frame is slidably connected to the inner side of the limiting frame. A placement slot for placing a card is opened on one side of the surface of the movable plate. Four second inclined blocks that match the shape of the first inclined block are slidably connected inside the placement slot. The shape formed by the four second inclined blocks matches the shape of the card.

[0009] By adopting the above technical solution, the use of the limiting frame eliminates the need for cutting by stretching and moving the film, avoiding repeated stretching of the film and affecting the coating quality. When pressed down, the first inclined block contacts the film first, and the inclined surface cooperates to locally tighten the film around the card, providing stable tension for subsequent cutting. The second inclined block placed in the slot matches the shape of the first inclined block to form a four-way clamping of the card, preventing the card from shifting when the film is covered, thus fundamentally solving the problem of coating wrinkles.

[0010] Preferably, a sliding rod that slides inside a square frame is fixedly connected to one side of the surface of the heating plate, and a fixed plate that slides through the sliding rod is fixedly connected to the inner wall of the square frame. A spring for adapting to the displacement of the heating plate is fixedly connected between one side of the fixed plate and the sliding rod.

[0011] By adopting the above technical solution, the spring buffers the downward impact, so that the heating plate makes uniform contact with the card surface, avoiding excessive local pressure that could cause the film to melt through or insufficient pressure that could cause poor adhesion.

[0012] Preferably, the support plate has a first groove inside, and a ball screw that is fixedly connected to the surface of the square frame is rotatably connected inside the first groove.

[0013] By adopting the above technical solution, the ball screw controls the displacement of the square frame.

[0014] Preferably, the inner circumferential array of the placement groove has four third sliding grooves, and the interior of the third sliding groove is slidably connected to a sliding plate fixed to the surface of the second inclined block. A spring is fixedly connected between the sliding plate and the inner wall of the third sliding groove.

[0015] By adopting the above technical solution, the second spring provides an adjustable clamping force of 0.5-2N, which ensures that the card does not shift in the placement slot and avoids deformation of the card edge due to excessive clamping.

[0016] Preferably, the support plate has a second sliding groove inside, and a ball screw that is fixedly connected to the surface of the moving plate is rotatably connected inside the second sliding groove.

[0017] By adopting the above technical solution, the two ball screws are linked by PLC control to ensure precise coordination between the moving plate and the downward pressing action of the square frame.

[0018] Preferably, a limiting rod that slides through the support plate is fixedly connected to the surface of the movable plate.

[0019] By adopting the above technical solution, the gap between the limiting rod and the support plate hole is small, which effectively suppresses the horizontal sway of the moving plate.

[0020] Preferably, both ends of the limiting frame are fixedly connected with rollers for achieving rolling friction.

[0021] By adopting the above technical solution, the roller surface is hard chrome plated, which does not produce scratches when in contact with the film, thus ensuring the surface quality of the film.

[0022] Preferably, servo motors are fixedly connected to both ends of the support plate, and the output ends of the two servo motors are fixedly connected to the surfaces of ball screw one and ball screw two, respectively.

[0023] By adopting the above technical solution, ball screw one and ball screw two are driven by independent servo motors, which can realize two modes: individual debugging of hot pressing components and linkage operation of auxiliary components.

[0024] In summary, this application includes at least one of the following beneficial technical effects:

[0025] 1. By setting the limiting frame, the film can move stably on the limiting frame. The film can be cut simultaneously during the heating process of the square frame moving down, without the need to cut by stretching and moving the film, thus avoiding repeated stretching of the film and affecting the coating quality.

[0026] 2. The wedge-shaped mechanism formed by the first and second inclined blocks converts vertical pressure into horizontal tension during the pressing process, enabling film fine-tuning. Before hot pressing, it tightens the film around the card to prevent wrinkles during hot pressing and facilitates cutting by the cutting board, reducing the burr rate at the cutting edge. The continuous pressing of the square frame moves the second inclined block to create a cutting gap, avoiding the problem of traditional devices requiring film movement for cutting. This ensures a smooth cutting process for the cutting board and protects the cutting board from contact with the spring. Attached Figure Description

[0027] Figure 1 This is a three-dimensional schematic diagram of the overall structure of this application;

[0028] Figure 2 This is a cross-sectional view of the overall structure of this application;

[0029] Figure 3 This is a schematic diagram of the auxiliary component structure of this application;

[0030] Figure 4 This is a partial structural diagram of the auxiliary components of this application;

[0031] Figure 5 This is a schematic diagram of the internal structure of the rectangular frame in this application;

[0032] Figure 6 for Figure 5 Enlarged structural diagram at point A in the middle;

[0033] Figure 7 This is a schematic diagram of the hot-pressing assembly after it has been cut and moved according to the present application.

[0034] Figure 8 for Figure 7 Enlarged structural diagram at point B.

[0035] Reference numerals: 1. Support plate;

[0036] 2. Hot pressing assembly; 21. First slide groove; 22. Ball screw one; 23. Square frame; 24. First inclined block; 25. Cutting plate; 26. Heating plate; 27. Slide rod; 28. Fixing plate; 29. ​​Spring one;

[0037] 3. Auxiliary components; 31. Second slide rail; 32. Second ball screw; 33. Limit frame; 34. Moving plate; 35. Roller; 36. Third slide rail; 37. Slide plate; 38. Second spring; 39. Second inclined block; 310. Placement slot; 311. Limit rod; 4. Servo motor. Detailed Implementation

[0038] The following is in conjunction with the appendix Figures 1-8 This application will be described in further detail.

[0039] This application discloses a printing card coating device.

[0040] Reference Figure 1 , Figure 2 A printing card laminating device includes a support plate 1, a hot pressing component 2 is disposed inside the support plate 1, the hot pressing component 2 is used to stretch the film around the card before cutting before hot pressing, and an auxiliary component 3 is disposed outside the support plate 1, the auxiliary component 3 is used to cooperate with the hot pressing component 2 and avoid wrinkles after the card is laminated.

[0041] During film transport, the film passes over the auxiliary component 3. When the film is coated, the film stops moving and the hot pressing component 2 is activated to tighten the film around the card, heat it, and then cut it, thereby improving the quality of the card coating.

[0042] Reference Figure 6 , Figure 8The hot pressing assembly 2 includes a square frame 23. The lower surface of the square frame 23 is fixedly connected to four first inclined blocks 24 and four cutting plates 25. The four first inclined blocks 24 are arranged around the edges of the four sides of the lower surface of the square frame 23. The four cutting plates 25 are arranged around the edges of the four sides of the lower surface of the square frame 23 near the inner side. The bottom of the cutting plates 25 is higher than the bottom of the first inclined blocks 24. When the first inclined blocks 24 move downward, it is ensured that the first inclined blocks 24 and the cutting plates 25 touch the film first. The inner bottom of the square frame 23 slides with the outer surface of the heating plate 26. The size of the heating plate 26 is the same as that of the cutting plates 25. Initially, the bottom surface of the heating plate 26 is located between the bottom of the first inclined blocks 24 and the bottom of the cutting plates 25. The four outer sides of the heating plate 26 are attached to the inner sides of the four cutting plates 25 so that the edges of the cutting plates 25 are flush with the edges of the film when cutting the film.

[0043] Heating wires are evenly installed inside the heating plate 26. The heating wires are used to heat the film to activate the adhesive layer on the surface of the film and make it firmly bonded to the surface of the card. When the square frame 23 moves downward, it drives the first inclined block 24, the cutting plate 25 and the heating plate 26 to move. The first inclined block 24 first contacts the film and causes the film around the card to bend downward, flattening the film on the card. Then the heating plate 26 contacts the film on the card and attaches the film to the card. Subsequently, the cutting plate 25 separates the film covering the card from the other films along the edge of the card. The cutting plate 25 cuts along the gap of the inclined block with a cutting accuracy of ±0.05mm.

[0044] Reference Figure 5 , Figure 7 The upper surface of the heating plate 26 is fixed to the lower surface of the slide rod 27. The middle part of the slide rod 27 is a square block that slides on the inner wall of the square frame 23. The inner wall of the square frame 23 is fixed to both sides of the fixing plate 28 above the square block of the slide rod 27. The middle part of the fixing plate 28 is slid through the top of the slide rod 27. The size of the top of the slide rod 27 is larger than the size of the middle shaft of the slide rod 27, which is used to limit the slide rod 27 and prevent the heating plate 26 from being unable to be fixed. The lower surface of the fixing plate 28 is fixed to the top of the spring 29. The bottom end of the spring 29 is fixed to the upper surface of the square block of the slide rod 27. By compressing the spring 29, it is deformed to achieve redundancy in the displacement of the heating plate 26. The inner top of the support plate 1 is provided with a first sliding groove 21. The inside of the first sliding groove 21 is rotatably connected to the bottom end of the ball screw 22. The moving end of the ball screw 22 is fixed to the upper surface of the square frame 23.

[0045] In the initial state, spring 29 is in an uncompressed state. The rotation of ball screw 22 causes the moving end of ball screw 22 to move the square frame 23 up and down. When the heating plate 26 contacts the card, the square frame 23 continues to move. At this time, the heating plate 26 is resisted. When the square frame 23 moves, it causes the fixing plate 28 to squeeze the spring 29 to deform it, so as to prevent the heating plate 26 from pressing down and damaging the card.

[0046] Reference Figure 3 , Figure 4 The auxiliary component 3 includes a limiting frame 33 fixedly connected to the surface of the support plate 1. The limiting frame 33 is square, and its inner side is slidably connected to the outer wall of the movable plate 34. The size of the limiting frame 33 is adapted to that of the movable plate 34. A placement groove 310 is provided on the upper surface of the movable plate 34 for placing cards. The placement groove 310 is square, and its inner wall slides against a second inclined block 39 on each of its four sides. The inclined surface of the second inclined block 39 is located at the top, and the inclined surface of the first inclined block 24 is located at the bottom. The inclined surfaces of the second inclined block 39 and the first inclined block 24 are parallel and at a 45-degree angle, serving as a reference for the interaction between the second inclined block 39 and the first inclined block 24. When the 24 inclined planes collide with each other, they drive the second inclined block 39 to move. The shape formed by the four second inclined blocks 39 matches the shape of the card. The card is placed inside the placement groove 310 formed by the four second inclined blocks 39. The inner wall of the placement groove 310 is provided with a third sliding groove 36 on all four sides. The four third sliding grooves 36 are arranged in a circumferential array. The inner wall of each third sliding groove 36 is slidably connected to the outer surface of a slide plate 37. There is no gap between the third sliding groove 36 and the slide plate 37 to avoid instability when the slide plate 37 moves. One end of the slide plate 37 located inside the third sliding groove 36 is fixed to one end of the second spring 38. The end of the second spring 38 away from the slide plate 37 is fixed to the inner wall of the third sliding groove 36.

[0047] In the initial state, spring 2 38 is in an uncompressed state. During use, the card is picked up and placed by raising and lowering the moving plate 34. The movement of the moving plate 34 does not affect the position of the film. When the inclined surface at the bottom of the first inclined block 24 contacts the inclined surface at the top of the second inclined block 39, the first inclined block 24 moves downward and pushes the second inclined block 39 outward. When the second inclined block 39 moves, it drives the slide plate 37 to slide inside the third slide groove 36. When the third slide groove 36 moves, it squeezes the spring 2 38 to deform it and create a cutting gap. When the first inclined block 24 and the second inclined block 39 contact, the film between the first inclined block 24 and the second inclined block 39 is clamped and tightened to avoid wrinkles during hot pressing. The second inclined block 39 is made of hard alloy material (hardness ≥ HRC60) with a dimensional tolerance of ±0.02mm.

[0048] Reference Figure 4 , Figure 8The support plate 1 has a second sliding groove 31 at its inner bottom. The top of the inner wall of the second sliding groove 31 is rotatably connected to the top of the second ball screw 32. The moving end of the second ball screw 32 is fixed to the lower surface of the moving plate 34. The lower surface of the moving plate 34 is fixed to the top of the two limiting rods 311. The two limiting rods 311 are symmetrically arranged at the bottom of the moving plate 34. Two protrusions are symmetrically arranged at the bottom of the support plate 1 near the square frame 23. The limiting rods 311 pass through the two protrusions and are slidably connected to the protrusions. The roller 35 is composed of a rotating shaft and a rotating cylinder. The rotating shaft and the rotating cylinder are rotatably connected. The two ends of the limiting frame 33 are respectively fixed to the rotating shaft of one roller 35. The highest point of the rotating cylinder of the roller 35 is parallel to the top surface of the limiting frame 33. The roller 35 contacts the limiting frame 33 through a thin film without contacting the limiting frame 33, thus changing from sliding friction to rolling friction. The rollers 35 at both ends of the limiting frame 33 are hard chrome plated (thickness 0.1mm) with a friction coefficient ≤0.1.

[0049] The servo motor 4 at the bottom starts and drives the ball screw 32 to rotate. The rotation of the ball screw 32 causes the moving end to move the moving plate 34 up and down. When the moving plate 34 moves down, the staff takes out the laminated card and places an unlaminated card into the placement slot 310. Before placing the card, it is necessary to ensure that the card is coated with glue.

[0050] Reference Figure 1 , Figure 2 The top and bottom of the support plate 1 are respectively fixed to the mounting end of a servo motor 4. The output end of the servo motor 4 located at the top of the support plate 1 is fixed to the top of the ball screw 22, and the output end of the servo motor 4 located at the bottom of the support plate 1 is fixed to the bottom of the ball screw 32. The ball screw includes a precision-ground screw shaft (with a helical raceway machined on the outer surface), a nut (with an embedded matching raceway structure), circulating balls (filling the raceway gap between the screw and the nut), and a ball circulator (guiding the balls to roll continuously). The outer wall of the nut of the ball screw 22 is rigidly fixed to the upper surface of the square frame 23, converting the rotational motion into linear motion. One end of the screw shaft is directly connected to the output shaft of the servo motor 4 located at the top of the support plate 1 through a coupling. The outer wall of the nut of the ball screw 32 is rigidly fixed to the lower surface of the moving plate 34, converting the rotational motion into linear motion. One end of the screw shaft is directly connected to the output shaft of the servo motor 4 located at the bottom of the support plate 1 through a coupling.

[0051] The two servo motors 4 and the heating wire are existing technologies, and their structural principles will not be elaborated here. The connecting wire of the heating wire is connected to the power supply through the outside of the sliding rod 27 and the square frame 23. The two servo motors 4 are connected to the compiler and the power supply through connecting wires. The ball screw 1 22 and the ball screw 2 32 can be HIWIN ball screw 512R40 models. The two servo motors 4 can be Yaskawa 6SGM7G model servo motors 4. The circuit part uses a PLC or motion control card as the core controller, outputting pulse / direction signals to two servo drivers. After receiving the signals, the drivers control the servo motors 4 to rotate, which is converted into linear motion by the ball screws.

[0052] The implementation principle of the card laminating device in this application embodiment is as follows: During use, the servo motor 4 at the bottom of the support plate 1 is started. The servo motor 4 drives the screw shaft of the ball screw 32 to rotate, causing the nut to move the moving plate 34 downward. The worker places the card coated with glue between the second inclined blocks 39 inside the placement slot 310. The servo motor 4 reverses to move the moving plate 34 upward and make it flush with the limiting frame 33. When the film is transported, it passes over the limiting frame 33 and the card. The limiting frame 33 makes the film move stably on the limiting frame 33. The film can be cut simultaneously during the heating process of the square frame 23 moving downward. It is not necessary to cut the film by stretching and moving it, thus avoiding repeated stretching of the film and affecting the laminating quality.

[0053] By activating the servo motor 4 at the top of the support plate 1, the servo motor 4 drives the ball screw 22 to rotate, causing the nut to rotate the square frame 23. When the square frame 23 moves downward, the wedge mechanism formed by the first inclined block 24 and the second inclined block 39 converts the vertical pressure into horizontal tension during the pressing process, realizing film fine adjustment. Before hot pressing, the film around the card is tightened to avoid wrinkles during hot pressing and facilitate cutting by the cutting plate 25, reducing the burr rate at the cutting edge. The continuous downward pressure of the square frame 23 causes the second inclined block 39 to move, creating a cutting gap. This avoids the problem of traditional devices requiring the film to be moved for cutting, ensuring a smooth cutting process for the cutting plate 25 and protecting the cutting plate 25 from contact with the spring 29.

[0054] The above are merely optional embodiments of this application and are not intended to limit this application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A printed card laminating apparatus characterized by comprising: Includes a support plate (1), the inside of which is provided a hot pressing assembly (2) for stretching and cutting the film around the card before hot pressing, and the outside of which is provided an auxiliary assembly (3) for cooperating with the hot pressing assembly (2) and avoiding wrinkles in the card coating. The hot pressing assembly (2) includes a square frame (23), and four first inclined blocks (24) of different heights and four cutting plates (25) are fixedly connected to one side of the surface of the square frame (23). The inner side of the square frame (23) is slidably connected to four heating plates (26) that are in contact with the surfaces of the four cutting plates (25). The auxiliary component (3) includes a limiting frame (33) fixedly connected to the surface of the support plate (1). The inner side of the limiting frame (33) is slidably connected to a movable plate (34) that is adapted to the size of the limiting frame (33). A placement slot (310) for placing a card is provided on one side of the surface of the movable plate (34). Four second inclined blocks (39) that match the shape of the first inclined block (24) are slidably connected inside the placement slot (310). The shape formed by the four second inclined blocks (39) matches the shape of the card.

2. The printing card laminating device according to claim 1, characterized in that: A sliding rod (27) that slides inside a square frame (23) is fixedly connected to one side of the surface of the heating plate (26). A fixed plate (28) that slides through the sliding rod (27) is fixedly connected to the inner wall of the square frame (23). A spring (29) for adapting to the displacement of the heating plate (26) is fixedly connected between one side of the surface of the fixed plate (28) and the sliding rod (27).

3. The printing card laminating device according to claim 1, characterized in that: The support plate (1) has a first groove (21) inside, and a ball screw (22) that is fixedly connected to the surface of the square frame (23) is rotatably connected inside the first groove (21).

4. The printing card laminating device according to claim 1, characterized in that: The inner circumferential array of the placement groove (310) has four third sliding grooves (36), and the interior of the third sliding groove (36) is slidably connected to a sliding plate (37) fixed to the surface of the second inclined block (39). A spring (38) is fixedly connected between the sliding plate (37) and the inner wall of the third sliding groove (36).

5. The printing card laminating device according to claim 1, characterized in that: The support plate (1) has a second groove (31) inside, and a ball screw (32) that is fixedly connected to the surface of the moving plate (34) is rotatably connected inside the second groove (31).

6. The printing card laminating device according to claim 1, characterized in that: The surface of the movable plate (34) is fixedly connected to a limiting rod (311) that slides through the support plate (1).

7. The printing card laminating device according to claim 1, characterized in that: Both ends of the limiting frame (33) are fixedly connected to rollers (35) for achieving rolling friction.

8. The printing card laminating device according to claim 1, characterized in that: Both ends of the support plate (1) are fixedly connected to servo motors (4), and the output ends of the two servo motors (4) are fixedly connected to the surfaces of ball screw one (22) and ball screw two (32), respectively.

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