Multi-layer composite material embossment card film covering device

Abstract

The invention relates to a multilayer composite material embossment card film covering device which comprises a rack, a conveying assembly arranged on the surface of the rack and used for conveying cards, a film covering assembly fixed to the upper portion of the rack and used for conducting cold mounting on the cards, and a positioning mechanism used for positioning the cards on the conveying assembly. The conveying assembly comprises power rollers rotationally arranged on the two sides of the rack. According to the multilayer composite material embossment card laminating device, the concave section is arranged on the surface of the conveying belt, the depth of the concave section is consistent with the height of a card before laminating, and the concave section is matched with suction force generated by a negative pressure adsorption plate through air holes, so that the card is stably embedded into the conveying belt, and displacement in the conveying process is avoided; the contact pressure between the conveying belt and the negative-pressure adsorption plate is detected in real time through the pressure sensor on the surface of the upper pressing roller, and when it is detected that the pressure is reduced, the lifting structure automatically drives the supporting plate to ascend, the abrasion loss of the negative-pressure adsorption plate is compensated, and constant adsorption force is ensured.

Description

Technical Field

[0001] The invention relates to the technical field of card processing, in particular to a multi-layer composite material embossed card laminating device. Background Art

[0002] As a high value-added craft product, multi-layer composite gold foil embossed cards usually need to be coated on the surface to enhance the decorative effect and protection. The traditional laminating device has the following problems during the processing:

[0003] Insufficient positioning accuracy: The surface of the card has an embossed structure, which needs to be precisely aligned with the coating material during lamination. However, traditional conveyor belts are prone to displacement of cards due to insufficient friction or mechanical vibration, resulting in coating offset, wrinkles and other problems.

[0004] Difficulty in wear compensation: During the lamination process, the long-term friction between the conveyor belt and the adsorption components is prone to wear, resulting in a decrease in the negative pressure adsorption force, requiring frequent shutdowns to replace components, affecting production efficiency.

[0005] Poor adaptability: Traditional devices are not adaptable enough to changes in card thickness and cannot dynamically adjust the contact pressure between the conveyor belt and the adsorption component, resulting in unstable adsorption of thin cards or compression deformation of thick cards.

[0006] High maintenance cost: key components such as negative pressure adsorption plates and conveyor belts are designed with the same material and need to be replaced as a whole after wear, which is very costly.

[0007] In order to solve the above problems, this patent proposes a multi-layer composite material embossed card laminating device, which significantly improves the laminating accuracy and equipment durability through innovatively designed conveying components, positioning mechanisms and dynamic adjustment systems. Summary of the invention

[0008] In view of the deficiencies in the prior art, the present invention provides a multi-layer composite material embossed card laminating device to solve the above-mentioned problems.

[0009] To achieve the above objectives, the present invention is implemented through the following technical solutions: a multi-layer composite material embossed card laminating device, comprising a frame, a conveying assembly arranged on the surface of the frame for conveying cards, a laminating assembly fixed above the frame for cold laminating the cards, and a positioning mechanism for positioning the cards on the conveying assembly, the conveying assembly comprising power rollers rotatably arranged on both sides of the frame, the surfaces of the two power rollers are both transmission-connected with a conveyor belt for conveying the cards, and the surface of the conveyor belt is provided with a plurality of air holes connected to the positioning mechanism;

[0010] The positioning mechanism includes a support platform fixed in the inner cavity of the frame. The support platform is arranged below the conveyor belt. A support plate driven by a lifting structure is slidably connected in the inner cavity of the support platform. A negative pressure adsorption plate is slidably connected to the top of the support plate. The top of the negative pressure adsorption plate is in sliding friction with the bottom of the conveyor belt. A driving cylinder is fixedly connected to the side of the support plate. One end of the piston rod of the driving cylinder is fixedly connected with a positioning plate for positioning the negative pressure adsorption plate. Positioning grooves adapted to the positioning plate are opened at both ends of the negative pressure adsorption plate.

[0011] As a further solution of the present invention: an inner concave section for placing the cards is opened in the middle of the conveyor belt. The inner concave section is recessed annularly on the surface of the conveyor belt, and the depth is the same as the height of the card before film coating, which can effectively position the cards and then convey them through the conveyor belt.

[0012] As a further solution of the present invention: a upper pressure roller located above the conveyor belt is rotatably connected to the side of the frame. A plurality of annularly arranged pressure sensors are fixedly connected to the surface of the upper pressure roller. During use, the upper pressure roller continuously contacts the surface of the conveyor belt. While extruding the conveyor belt for upper positioning, the force detected and fed back by the pressure sensors is continuously detected. When the negative pressure adsorption plate is worn, the force detected and fed back by the pressure sensor decreases at this time. The support plate in the support platform is driven by the lifting structure to rise, driving the negative pressure adsorption plate to rise, so that it can continuously adhere to the surface of the conveyor belt. When the normal pressure is detected, the rising is stopped. While the upper pressure roller limits the upper position of the negative pressure adsorption plate, it can ensure that the height of its upper surface is constant. Even if it is worn, the allowance can be quickly replenished, ensuring the accuracy of card conveying, more accurate film coating processing, and preventing errors.

[0013] As a further solution of the present invention: the lifting structure includes a top plate slidably arranged in the inner cavity of the support platform. A top ball is slidably arranged in the inner cavity of the support platform through a through groove. The top of the top ball abuts against the bottom of the support plate. A guiding groove adapted to the top ball is opened on the surface of the top plate. The guiding groove is an inclined groove that gradually rises from front to back. During use, the top plate abuts against the top ball through the guiding groove, and the top ball rises to abut against the bottom of the support plate, jacking it up and positioning its height. And the support plate is slidably arranged up and down in the support platform without lateral offset. After the support plate is jacked up and positioned by the top ball, it is cooperated with the extrusion of the upper pressure roller above for positioning. When it is necessary to adjust the height of the negative pressure adsorption plate to make it rise, the top plate is driven by a cylinder to move forward in the support platform, and the top ball is pushed to rise under the guidance of the guiding groove, jacking up the support plate. Through the force conversion of the guiding groove, multiple top balls can be applied with force, enabling them to support the stable lifting of the support plate at multiple points, effectively preventing the situation that the support plate is bent due to unbalanced jacking force, and effectively ensuring the levelness.

[0014] As a further solution of the present invention: A plurality of top balls are provided and symmetrically arranged on the surface of the support table. The top balls are limited by the through grooves so that they can only move up and down.

[0015] As a further solution of the present invention: The hardness of the negative pressure adsorption plate is lower than that of the conveyor belt. When in use, almost no frictional loss occurs to the conveyor belt, and only the negative pressure adsorption plate generates frictional loss. The service life of the conveyor belt can be effectively guaranteed by the quickly replaceable negative pressure adsorption plate, reducing the loss and the time required for replacing components.

[0016] As a further solution of the present invention: The negative pressure adsorption plate is communicated with an external air pump. The air pump applies suction force to the negative pressure adsorption plate. Through the air holes on the surface of the conveyor belt, the cards can be effectively adsorbed on the concave section for transportation, and can be tightly attached thereto without relative displacement with the conveyor belt, resulting in a better laminating effect and effectively preventing warping.

[0017] As a further solution of the present invention: The negative pressure adsorption plate is communicated with an external air pump. The air pump applies suction force to the negative pressure adsorption plate. Through the air holes on the surface of the conveyor belt, the cards can be effectively adsorbed on the concave section for transportation, and can be tightly attached thereto without relative displacement with the conveyor belt, resulting in a better laminating effect and effectively preventing warping.

[0018] An iron block is fixedly connected to the side of the negative pressure adsorption plate, and an electromagnet for adsorbing the iron block is fixedly connected to the side of the support plate. The positioning is more accurate through the adsorption of the electromagnet.

[0019] The present invention has the following beneficial effects compared with the prior art:

[0020] High-precision positioning and adsorption:

[0021] A concave section is provided on the surface of the conveyor belt, and its depth is the same as the height of the card before laminating. In cooperation with the suction force generated by the air holes of the negative pressure adsorption plate, it is ensured that the card is stably embedded in the conveyor belt, avoiding displacement during transportation.

[0022] In the positioning mechanism, the driving cylinder pushes the positioning plate into the positioning groove of the negative pressure adsorption plate to achieve precise positioning of the negative pressure adsorption plate, further improving the fixing effect of the card.

[0023] Dynamic wear compensation:

[0024] The contact pressure between the conveyor belt and the negative pressure adsorption plate is detected in real time by the pressure sensor on the surface of the upper pressure roller. When the detected pressure decreases, the lifting structure automatically drives the support plate to rise to compensate for the wear amount of the negative pressure adsorption plate, ensuring a constant adsorption force.

[0025] The guiding groove of the top plate cooperates with the top ball to synchronously lift the support plate at multiple points, avoiding deformation of the support plate caused by uneven single-point stress and ensuring a stable adjustment process.

[0026] Modular and easy-to-maintain design:

[0027] The negative pressure adsorption plate is made of low-hardness material, forming a friction pair with the high-hardness conveyor belt. Only the vulnerable negative pressure adsorption plate needs to be replaced, reducing the maintenance cost.

[0028] The negative pressure adsorption plate adopts a multi-piece independent design, which can be quickly disassembled and replaced, reducing the downtime.

[0029] Improvement of film laminating quality:

[0030] The cooperation between the concave section and the negative pressure adsorption plate keeps the distance between the card surface and the film laminating component constant, ensuring uniform cold laminating pressure and avoiding bubbles or warping. Brief description of the drawings

[0031] Figure 1 is a schematic structural diagram of the present invention;

[0032] Figure 2 is the present invention Figure 1 a partial enlarged view of part A in;

[0033] Figure 3 is a top view of the conveyor belt structure of the present invention;

[0034] Figure 4 is a top view of the support plate structure of the present invention;

[0035] Figure 5 is a schematic structural diagram of the top plate of the present invention.

[0036] In the figure: 1, frame; 2, driving roller; 3, film laminating component; 4, support table; 5, support plate; 6, top plate; 7, electromagnet; 8, iron block; 9, guiding groove; 10, top ball; 11, negative pressure adsorption plate; 12, positioning plate; 13, conveyor belt; 14, upper pressure roller; 15, pressure sensor; 16, concave section; 17, driving cylinder; 18, air hole; 19, positioning groove; 20, through groove. Detailed implementation manners

[0037] To further elaborate on the technical means and effects adopted by the present invention to achieve the predetermined invention purpose, the following, in conjunction with the accompanying drawings and preferred embodiments, details the specific implementation manners, structures, features and their effects of the present invention as follows.

[0038] Please refer to Figures 1-5, the present invention provides a technical solution: a multi-layer composite material embossed card laminating device, which includes a frame 1, a conveying component arranged on the surface of the frame 1 for conveying cards, a laminating component 3 fixed above the frame 1 for cold laminating cards, and a positioning mechanism for positioning the cards on the conveying component. The conveying component includes power rollers 2 rotatably arranged on both sides of the frame 1. The surfaces of the two power rollers 2 are both drivingly connected with a conveyor belt 13 for conveying cards. A plurality of air holes 18 communicating with the positioning mechanism are opened on the surface of the conveyor belt 13;

[0039] The positioning mechanism includes a support table 4 fixed in the inner cavity of the frame 1. The support table 4 is arranged below the conveyor belt 13. A support plate 5 driven by a lifting structure is slidably connected in the inner cavity of the support table 4. A negative pressure adsorption plate 11 is slidably connected to the top of the support plate 5. The top of the negative pressure adsorption plate 11 is in sliding friction with the bottom of the conveyor belt 13. A driving cylinder 17 is fixedly connected to the side of the support plate 5. One end of the piston rod of the driving cylinder 17 is fixedly connected with a positioning plate 12 for positioning the negative pressure adsorption plate 11. Positioning grooves 19 adapted to the positioning plate 12 are opened at both ends of the negative pressure adsorption plate 11.

[0040] An inner concave section 16 for placing cards is opened in the middle of the conveyor belt 13. The inner concave section 16 is concavely arranged in a circular shape on the surface of the conveyor belt 13, and its depth is the same as the height of the card before laminating, which can effectively position the card, and then convey it through the conveyor belt 13.

[0041] A upper pressure roller 14 is rotatably connected to the side of the frame 1 above the conveyor belt 13. A plurality of annularly arranged pressure sensors 15 are fixedly connected to the surface of the upper pressure roller 14. During use, the upper pressure roller 14 continuously contacts the surface of the conveyor belt 13. While extruding the conveyor belt 13 to position it from above, the force continuously detected and fed back by the pressure sensors 15 is used. When the negative pressure adsorption plate 11 is worn, at this time the force detected and fed back by the pressure sensors 15 decreases. The support plate 5 in the support table 4 is driven by the lifting structure to rise, driving the negative pressure adsorption plate 11 to rise, so that it can continuously adhere to the surface of the conveyor belt 13. When the normal pressure is detected, the rising stops. While the upper pressure roller 14 limits the negative pressure adsorption plate 11 from above, it can ensure that the height of its upper surface is constant. Even if it is worn, the remaining amount can be quickly replenished, ensuring the accuracy of card conveying, making the laminating process more accurate and preventing errors.

[0042] The lifting structure includes a top plate 6 slidably arranged in the inner cavity of the support table 4. A top ball 10 is slidably arranged in the inner cavity of the support table 4 through a through groove 20. The top of the top ball 10 abuts against the bottom of the support plate 5. A guiding groove 9 adapted to the top ball 10 is formed on the surface of the top plate 6. The guiding groove 9 is an inclined groove that gradually rises from front to back. When in use, the top plate 6 abuts against the top ball 10 through the guiding groove 9, and the top ball 10 rises to abut against the bottom of the support plate 5, jacking it up and positioning its height. Moreover, the support plate 5 is slidably arranged up and down in the support table 4 without lateral offset. After the support plate 5 is jacked up and positioned by the top ball 10, it is cooperated with the upper pressure roller 14 above for extrusion and positioning. When it is necessary to adjust the height of the negative pressure adsorption plate 11 to lift it, the top plate 6 is driven by a cylinder to move forward in the support table 4, and the top ball 10 is pushed to rise under the guidance of the guiding groove 9, jacking up the support plate 5. Through the force conversion of the guiding groove 9, multiple top balls 10 can be applied with force, enabling them to support the smooth lifting of the support plate 5 at multiple points, effectively preventing the situation that the support plate 5 is bent due to unbalanced jacking force, and effectively ensuring the levelness.

[0043] A plurality of top balls 10 are provided and symmetrically arranged on the surface of the support table 4. The top balls are limited by the through groove 20 so that they can only move up and down.

[0044] The hardness of the negative pressure adsorption plate 11 is lower than that of the conveyor belt 13. When in use, almost no frictional loss occurs to the conveyor belt 13, and only the negative pressure adsorption plate 11 has frictional loss. By the quickly replaceable negative pressure adsorption plate 11, the service life of the conveyor belt 13 can be effectively guaranteed, reducing the loss and the time required for replacing components.

[0045] The negative pressure adsorption plate 11 is communicated with an external air pump. The air pump applies suction force to the negative pressure adsorption plate 11. Through the air holes 18 on the surface of the conveyor belt 13, the cards can be effectively adsorbed on the concave section 16 for conveying, and can be tightly attached thereto without relative displacement with the conveyor belt 13, resulting in a better laminating effect and effectively preventing warping.

[0046] The negative pressure adsorption plate 11 is communicated with an external air pump. The air pump applies suction force to the negative pressure adsorption plate 11. Through the air holes 18 on the surface of the conveyor belt 13, the cards can be effectively adsorbed on the concave section 16 for conveying, and can be tightly attached thereto without relative displacement with the conveyor belt 13, resulting in a better laminating effect and effectively preventing warping.

[0047] An iron block 8 is fixedly connected to the side of the negative pressure adsorption plate 11, and an electromagnet 7 adsorbed to the iron block 8 is fixedly connected to the side of the support plate 5. The adsorption by the electromagnet 7 makes the positioning more accurate.

[0048] High-precision positioning and adsorption:

[0049] The surface of the conveyor belt 13 is provided with a concave section 16, the depth of which is the same as the height of the card before film laminating. Cooperating with the suction force generated by the negative pressure adsorption plate 11 through the air holes 18, it ensures that the card is stably embedded in the conveyor belt 16 and avoids displacement during the conveying process.

[0050] In the positioning mechanism, the driving cylinder 17 pushes the positioning plate 12 to insert into the positioning groove 19 of the negative pressure adsorption plate 11, realizing the precise positioning of the negative pressure adsorption plate 11 and further improving the card fixing effect.

[0051] Dynamic wear compensation:

[0052] The contact pressure between the conveyor belt 13 and the negative pressure adsorption plate 11 is detected in real time through the pressure sensor 15 on the surface of the upper pressure roller 14. When it is detected that the pressure decreases due to wear and the gap increases, the lifting structure automatically drives the support plate 5 to rise to compensate for the wear amount of the negative pressure adsorption plate 11 and ensure a constant adsorption force.

[0053] The guiding groove 9 of the top plate 6 cooperates with the top ball 10 to synchronously lift the support plate 5 at multiple points, avoiding deformation of the support plate 5 caused by uneven single-point stress and ensuring a stable adjustment process.

[0054] Modular and easy-to-maintain design:

[0055] The negative pressure adsorption plate 11 is made of a low-hardness material, forming a friction pair with the high-hardness conveyor belt 13. Only the vulnerable negative pressure adsorption plate 11 needs to be replaced, reducing the maintenance cost.

[0056] The negative pressure adsorption plate 11 adopts a multi-piece independent design, which can be quickly disassembled and replaced, reducing the downtime.

[0057] Improvement of film laminating quality:

[0058] The cooperation between the concave section 16 and the negative pressure adsorption plate 11 keeps the distance between the surface of the card and the film laminating assembly 3 constant, ensuring uniform cold laminating pressure and avoiding bubbles or warping.

[0059] The above are only the preferred embodiments of the present invention and do not impose any form of limitation on the present invention. Although the present invention has been disclosed above with the preferred embodiments, it is not intended to limit the present invention. Any person skilled in the art can make some modifications or equivalent changes within the scope of the technical solution of the present invention. However, as long as it does not depart from the content of the technical solution of the present invention, any brief modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention still fall within the scope of the technical solution of the present invention.

Claims

1. Multi-layer composite material relief card laminating device, comprising a frame (1), a conveying assembly arranged on the surface of the frame (1) for conveying cards, a laminating assembly (3) fixed above the frame (1) for cold laminating the cards, and a positioning mechanism for positioning the cards on the conveying assembly, characterized in that: The conveying assembly includes power rollers (2) rotatably arranged on both sides of the frame (1). The surfaces of the two power rollers (2) are both drivingly connected with a conveyor belt (13) for conveying the cards. A plurality of air holes (18) communicating with the positioning mechanism are formed on the surface of the conveyor belt (13). The positioning mechanism includes a support table (4) fixed in the inner cavity of the frame (1). The support table (4) is arranged below the conveyor belt (13). A support plate (5) driven by a lifting structure is slidably connected in the inner cavity of the support table (4). A negative pressure adsorption plate (11) is slidably connected to the top of the support plate (5). The top of the negative pressure adsorption plate (11) is in sliding friction with the bottom of the conveyor belt (13). A driving cylinder (17) is fixedly connected to the side of the support plate (5). One end of the piston rod of the driving cylinder (17) is fixedly connected with a positioning plate (12) for positioning the negative pressure adsorption plate (11). Positioning grooves (19) adapted to the positioning plate (12) are formed at both ends of the negative pressure adsorption plate (11).

2. The multi-layer composite material embossed card laminating device according to claim 1, wherein: An inner concave section (16) for placing the cards is formed in the middle of the conveyor belt (13). The inner concave section (16) is recessed annularly on the surface of the conveyor belt (13), and the depth is the same as the height of the card before film coating.

3. The multi-layer composite material relief card laminating device according to claim 1, characterized in that: An upper pressure roller (14) located above the conveyor belt (13) is rotatably connected to the side of the frame (1). A plurality of pressure sensors (15) arranged in an annular array are fixedly connected to the surface of the upper pressure roller (14).

4. The multi-layer composite material embossed card laminating device according to claim 1, characterized in that: The lifting structure includes a top plate (6) slidably arranged in the inner cavity of the support table (4). A top ball (10) is slidably arranged in the inner cavity of the support table (4) through a through groove (20). The top end of the top ball (10) abuts against the bottom of the support plate (5). A guiding groove (9) adapted to the top ball (10) is formed on the surface of the top plate (6). The guiding groove (9) is an inclined groove gradually rising from front to back.

5. The multi-layer composite material relief card laminating device according to claim 4, wherein: A plurality of the top balls (10) are provided and symmetrically arranged on the surface of the support table (4).

6. The multi-layer composite material relief card laminating device according to claim 1, wherein: The hardness of the negative pressure adsorption plate (11) is lower than that of the conveyor belt (13).

7. The multi-layer composite material relief card laminating device according to claim 1, characterized in that: The negative pressure adsorption plate (11) is communicated with an external air pump, and a suction force is applied to the negative pressure adsorption plate (11) by the air pump.

8. The multi-layer composite material embossed card laminating device according to claim 1, wherein: A plurality of the negative pressure adsorption plates (11) are arranged on the support plate (5).

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