Heating film exhausting bubble-free double faced adhesive tape laminating structure and laminating machine comprising same

Abstract

The utility model discloses a heating film exhausting bubble-free double faced adhesive tape laminating structure and a laminating machine comprising the same, and relates to the field of heating film laminating, the heating film exhausting bubble-free double faced adhesive tape laminating structure comprises two U-shaped frames with opposite opening directions, and the two U-shaped frames are distributed up and down; and film coating rollers with soft materials attached to the surfaces are rotationally connected to the interiors of the two U-shaped frames correspondingly, and heating rods are arranged in the two film coating rollers correspondingly. The heating rods in the two laminating rollers are controlled to emit heat, then a plate body is fed between the two laminating rollers, the upper laminating roller is driven to rotate through the retarding motor, the plate body and a film body can be driven to move backwards while being extruded, and meanwhile the heat emitted by the heating rods can be transmitted to a soft material on the surface. The soft material on the surface of the laminating roller can enable a film body to be tightly attached to the surface of a plate body through heating, bubbles are avoided, the whole operation process is fast and convenient, bubble-free laminating is conducted on the two faces of the plate body at the same time, and the working efficiency and the laminating effect are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of heating film laminating technology, and particularly relates to a heating film exhaust bubble-free double-sided adhesive laminating structure and a laminating machine comprising the structure. Background Technique

[0002] A battery heating film is a material used for heat preservation and heating, and is usually used for heating and heat preservation of a battery module. Its essence is a pressure-sensitive film with heat conduction and heat insulation properties, which can convert electrical energy into heat energy for heating. The product for heating a power battery pack is generally an alloy heating film. The manufacturing method of this heating product usually adopts the method of wet etching alloy materials to form a heating body, and then it is encapsulated between two insulating films.

[0003] At present, both sides of the heating film plate body need to be adhered to the film body through back glue. The film body is generally a special PET polyester film. Most of the existing laminating equipment can only operate on one side, that is, the two sides of the plate body are laminated in sequence. This method requires a turning action, which affects the work efficiency. Moreover, in the traditional method, the pressure roller directly presses, which easily generates bubbles between the film body and the plate body, and the subsequent treatment is more cumbersome. Content of the Utility Model

[0004] The purpose of the utility model is to provide a heating film exhaust bubble-free double-sided adhesive laminating structure and a laminating machine comprising the structure to solve the above problems, as described in detail below.

[0005] To achieve the above purpose, the utility model provides the following technical solutions:

[0006] A heating film exhaust bubble-free double-sided adhesive laminating structure provided by the utility model includes two U-shaped frames arranged oppositely in the opening direction, and the two U-shaped frames are distributed one above the other. A laminating roller with a soft material attached to its surface is rotatably connected in each of the two U-shaped frames, and heating rods are arranged inside both of the two laminating rollers. One end of the upper U-shaped frame is fixedly installed with a slow-speed motor for driving the rotation of one of the laminating rollers.

[0007] When using the above-mentioned heating film exhaust bubble-free double-sided adhesive laminating structure, apply glue to the surface of the plate body, then align and initially attach the film body to the surface of the plate body. Control the heating rods in the two laminating rollers to emit heat, and then send the plate body between the two laminating rollers. Drive the upper laminating roller to rotate through the slow-speed motor, which can drive the plate body and the film body to move backward while being squeezed. At the same time, the heat emitted by the heating rods can be transferred to the soft material on the surface. The soft material on the surface of the laminating roller can make the film body closely adhere to the surface of the plate body through heat generation, avoiding the generation of bubbles until double-sided lamination is completed.

[0008] Preferably, the film - covering roller is composed of a heat - conducting hollow cylinder and a high - temperature - resistant rubber layer, and the high - temperature - resistant rubber layer is sleeved outside the heat - conducting hollow cylinder.

[0009] Preferably, one end of the heat - conducting hollow cylinder is fixedly connected with a rotating shaft, and the other end of the heat - conducting hollow cylinder is rotatably connected with a hollow tube. The rotating shaft is rotatably connected with one end of the U - shaped frame, and the hollow tube is fixedly connected with and penetrates through the other end of the U - shaped frame.

[0010] Preferably, the output shaft of the speed - reducing motor is connected with the upper rotating shaft, the heating rod is fixedly installed at the end of the hollow tube, and the wire of the heating rod passes through the hollow tube and is electrically connected with an external temperature controller.

[0011] The utility model also provides a film - covering machine, which includes a table board and the heating - film exhaust - bubble - free double - sided adhesive film - covering structure described in any one of the above. Four corners of the bottom surface of the table board are fixedly connected with legs. A through - groove is vertically penetrated through one side of the table board, and two film - covering rollers are both located at the through - groove. Tension structures for making the two film - covering rollers abut against each other are arranged at the through - groove positions on the upper and lower side walls of the table board.

[0012] Preferably, the tension structure includes two vertical rods fixedly connected to the surface of the table board. The two vertical rods are respectively located at the diagonals of the through - groove and are symmetric about the center of the through - groove. Both ends of the U - shaped frame are fixedly connected with sleeves through support plates, and the sleeves are slidably connected to the vertical rods. A spring is connected between the sleeve and the table board, and the spring is sleeved outside the vertical rod.

[0013] Preferably, the springs on the upper and lower sides stably keep the abutting position of the two film - covering rollers on the upper surface of the table board through tension.

[0014] The beneficial effects are as follows:

[0015] By controlling the heat generated by the heating rods in the two film - covering rollers, then feeding the plate body between the two film - covering rollers, and driving the upper film - covering roller to rotate through the speed - reducing motor, the plate body and the film body can be driven to move backward while being extruded. At the same time, the heat generated by the heating rods can be transferred to the soft material on the surface. The soft material on the surface of the film - covering roller can make the film body closely adhere to the surface of the plate body through heating, avoiding the generation of bubbles. The whole operation process is fast and convenient, enabling bubble - free film - covering on both sides of the plate body at the same time, improving the working efficiency and the film - covering effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for the description of the embodiments or the prior art. Obviously, the drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0017] Figure 1 is a perspective view of the present invention;

[0018] Figure 2 is a sectional perspective view of the film covering roller of the present invention.

[0019] The description of the reference numerals is as follows:

[0020] 1, U-shaped frame; 2, film covering roller; 21, heat-conducting hollow cylinder; 22, high-temperature resistant rubber layer; 3, heating rod; 4, speed-reducing motor; 5, rotating shaft; 6, hollow tube; 7, table board; 8, supporting leg; 9, through groove; 10, vertical rod; 11, sleeve; 12, spring. Detailed implementation manners

[0021] To make the purpose, technical solutions and advantages of the present invention clearer, the following will describe the technical solutions of the present invention in detail. Obviously, the described embodiments are only some embodiments of the present invention, rather than all embodiments. Based on the embodiments of the present invention, all other implementation manners obtained by those of ordinary skill in the art without creative efforts belong to the scope protected by the present invention.

[0022] See Figure 1 - Figure 2 As shown, the present invention provides a film covering structure for heating film exhaust without bubbles double-sided tape, including two U-shaped frames 1 arranged with opposite opening directions, and the two U-shaped frames 1 are distributed one above the other. A film covering roller 2 with a soft material attached to its surface is rotatably connected in both of the two U-shaped frames 1, and heating rods 3 are arranged inside both of the two film covering rollers 2. One end of the upper U-shaped frame 1 is fixedly installed with a speed-reducing motor 4 for driving the rotation of the film covering roller 2 therein.

[0023] Refer to Figure 2 As shown, the film covering roller 2 is composed of a heat-conducting hollow cylinder 21 and a high-temperature resistant rubber layer 22. The high-temperature resistant rubber layer 22 is sleeved outside the heat-conducting hollow cylinder 21. The high-temperature resistant rubber layer 22 is the soft material attached to the outer surface of the film covering roller 2, and can have a certain deformation ability, so that the film body can fit more closely to the plate body with slight undulations on the surface, improving the film covering effect.

[0024] As an optional implementation, one end of the heat-conducting hollow cylinder 21 is fixedly connected to a rotating shaft 5, and the other end of the heat-conducting hollow cylinder 21 is rotatably connected to a hollow tube 6. The rotating shaft 5 is rotatably connected to one end of the U-shaped frame 1, and the hollow tube 6 is fixedly connected to and penetrates through the other end of the U-shaped frame 1. The output shaft of the speed-reducing motor 4 is connected to the upper rotating shaft 5, and the heating rod 3 is fixedly installed at the end of the hollow tube 6. The wire of the heating rod 3 passes through the hollow tube 6 and is electrically connected to an external temperature controller, which can make the heat-conducting hollow cylinder 21 rotate stably in the U-shaped frame 1. At the same time, the speed-reducing motor 4 can drive the upper heat-conducting hollow cylinder 21 to rotate slowly. The heating temperature of the heating rod 3 can be adjusted through the external temperature controller. Finally, through the heat transfer effect between substances, a certain amount of heat is also carried on the surface of the high-temperature resistant rubber layer 22, improving the bonding effect of the film body.

[0025] The present utility model also provides a film laminating machine, which includes a table board 7 and the heating film exhaust bubble-free double-sided adhesive film laminating structure of any one of the above. Legs 8 are fixedly connected to the four corners of the bottom surface of the table board 7. A through groove 9 is vertically penetrated through one side of the table board 7, and the two film laminating rollers 2 are both located at the through groove 9. Tension structures for making the two film laminating rollers 2 abut against each other are provided at the through groove 9 on the upper and lower side walls of the table board 7. By placing the plate body and the film body on the surface of the table board 7 and squeezing them between the two film laminating rollers 2, the rotation of the film laminating rollers 2 can drive the extrusion of the film body and the plate body to be bonded.

[0026] As an optional implementation, the tension structure includes two vertical rods 10 fixedly connected to the surface of the table board 7. The two vertical rods 10 are respectively located at the diagonals of the through groove 9 and are symmetric about the center of the through groove 9. Both ends of the U-shaped frame 1 are fixedly connected with sleeves 11 through support plates, and the sleeves 11 are slidably connected to the vertical rods 10. A spring 12 is connected between the sleeve 11 and the table board 7, and the spring 12 is sleeved outside the vertical rod 10. The tension of the spring 12 can drive the sleeve 11 to slide on the vertical rod 10, and at the same time can drive the two film laminating rollers 2 to approach each other until they abut. The staggered arrangement of the two vertical rods 10 is convenient for installing the speed-reducing motor 4 and circuit wiring.

[0027] Specifically, the upper and lower side springs 12 stably position the abutting part of the two film laminating rollers 2 on the upper surface of the table board 7 through tension. Due to the influence of gravity, the tension of the lower spring 12 should be stronger than that of the upper spring 12. At this time, the pressures on the upper and lower surfaces of the plate body are the same. When the abutting point of the two film laminating rollers 2 is located on the upper surface of the table board 7, it can make the plate body enter between the two film laminating rollers 2 on the surface of the table board 7 more smoothly.

[0028] With the above structure, during use, apply glue to the surface of the plate body. Then align the film body and initially attach it to the surface of the plate body. Control the heating rods 3 in the two film laminating rollers 2 to generate heat. Subsequently, send the plate body between the two film laminating rollers 2. Drive the upper film laminating roller 2 to rotate through the slow-speed motor 4, which can drive the plate body and the film body to move backward while being squeezed. At the same time, the heat generated by the heating rods 3 can be transferred to the soft material on the surface. The soft material on the surface of the film laminating roller 2 can make the film body closely adhere to the surface of the plate body through heating, avoiding the generation of bubbles until double-sided film lamination is completed.

[0029] As described above, the above is only the specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention can easily think of changes or substitutions, which should all be covered within the protection scope of the present invention. Therefore, the protection scope of the present invention should be subject to the protection scope of the claims.

Claims

1. A double-sided adhesive film laminating structure for heating film exhaust without bubbles, characterized in that: It includes two U-shaped frames (1) with opposite opening directions, and the two U-shaped frames (1) are distributed one above the other. A film covering roller (2) with a soft material attached to its surface is rotatably connected in each of the two U-shaped frames (1), and a heating rod (3) is provided inside each of the two film covering rollers (2). At one end of the upper U-shaped frame (1), a slow-speed motor (4) is fixedly installed to drive the rotation of the film covering roller (2) therein.

2. The double-sided adhesive film laminating structure for heating film exhaust without bubbles according to claim 1, wherein: The film covering roller (2) is composed of a heat-conducting hollow cylinder (21) and a high-temperature resistant rubber layer (22), and the high-temperature resistant rubber layer (22) is sleeved on the outside of the heat-conducting hollow cylinder (21).

3. A double-sided adhesive film laminating structure for heating film exhaust without bubbles according to claim 2, characterized in that: One end of the heat-conducting hollow cylinder (21) is fixedly connected to a rotating shaft (5), and the other end of the heat-conducting hollow cylinder (21) is rotatably connected to a hollow tube (6). The rotating shaft (5) is rotatably connected to one end of the U-shaped frame (1), and the hollow tube (6) is fixedly connected to and penetrates through the other end of the U-shaped frame (1).

4. A double-sided adhesive film laminating structure for heating film exhaust without bubbles according to claim 3, characterized in that: The output shaft of the slow-speed motor (4) is connected to the upper rotating shaft (5). The heating rod (3) is fixedly installed at the end of the hollow tube (6), and the wire of the heating rod (3) passes through the hollow tube (6) and is electrically connected to an external temperature controller.

5. A laminating machine, comprising a table board (7) and a heating film exhaust bubble-free double-sided adhesive laminating structure according to any one of claims 1-4, characterized in that: Four corners of the bottom surface of the tabletop (7) are fixedly connected with legs (8). A through groove (9) is vertically formed through one side of the tabletop (7), and the two film covering rollers (2) are both located at the through groove (9). Tension structures are provided at the through groove (9) on the upper and lower side walls of the tabletop (7) to make the two film covering rollers (2) abut against each other.

6. The laminating machine according to claim 5, wherein: The tension structure includes two vertical rods (10) fixedly connected to the surface of the tabletop (7). The two vertical rods (10) are respectively located at the diagonals of the through groove (9) and are centrosymmetric about the center of the through groove (9). Both ends of the U-shaped frame (1) are fixedly connected with sleeves (11) through support plates, and the sleeves (11) are slidably connected to the vertical rods (10). A spring (12) is connected between the sleeve (11) and the tabletop (7), and the spring (12) is sleeved on the outside of the vertical rod (10).

7. A laminating machine according to claim 6, characterized in that: The upper and lower springs (12) stably position the abutting portion of the two film covering rollers (2) on the upper surface of the tabletop (7) through tension.

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