Battery protection cover processing method and cutting device thereof

Abstract

The application provides a battery protective cover processing method and a cutting device thereof, checks high-oxygen silicon cloth and PET single-sided adhesive film, stores the high-oxygen silicon cloth and the PET single-sided adhesive film in a warehouse after the checking is completed, attaches the PET single-sided adhesive film to both sides of the high-oxygen silicon cloth to form a protective cover material film, lays the protective cover material film flat in a battery protective cover processing device integrating conveying, cutting and stretching to perform cutting processing, continuously stretches the protective cover material film in the process of cutting and hollowing, levels the surface of the protective cover material film, forms a plurality of separate protective cover flat sheets after the protective cover material film is processed, and completes the processing by stacking and storing the protective cover flat sheets in a warehouse. The processing method and the cutting device can automatically process the protective cover, prevent the protective cover from being wrinkled during processing, and improve the yield. The device integrates hollowing, stretching and cutting processing, realizes full-automatic processing, reduces manual operation steps, and improves production efficiency.

Description

Technical Field

[0001] This invention belongs to the field of new energy vehicle technology, specifically relating to a battery protective cover processing method and its cutting device. Background Technology

[0002] Pure electric vehicles need to be equipped with batteries, and a protective cover needs to be installed between the battery and the car to prevent the heat generated by the battery during charging and discharging from entering the passenger compartment. The protective cover needs to be cut to a size that matches the battery using a cutting and processing device.

[0003] However, due to the relatively soft material of the battery protective cover, traditional processing methods lack a stretching step during cutting, making it impossible to guarantee a smooth surface during processing. Wrinkles easily form as the protective cover material moves under the cutting device, resulting in a mismatch between the cut cover dimensions and the battery, and potentially causing displacement of the different layers of material. Furthermore, small burrs are easily generated on the surface after cutting. Therefore, it is necessary to provide a battery protective cover processing method and cutting device that facilitates cutting of the protective cover material, achieves good cutting results, and maintains a smooth surface during the cutting process. Summary of the Invention

[0004] To address the aforementioned technical problems, this invention provides a battery protective cover processing method and its cutting device, thereby solving the technical problems mentioned in the background art.

[0005] Technical solution

[0006] To achieve the above objectives, the present invention provides a method for processing a battery protective cover, comprising the following steps:

[0007] S1. Inspect the high-oxygen silicone cloth and PET single-sided adhesive film, and store them in the warehouse after inspection.

[0008] S2. Take out the stored high-oxygen silicone cloth and PET single-sided adhesive film, and attach PET single-sided adhesive film to both sides of the high-oxygen silicone cloth to form a protective cover film.

[0009] S3. The protective cover film is laid flat in a battery protective cover processing device that integrates conveying, cutting and stretching for cutting and processing. During the cutting and hollowing process, the protective cover film is continuously stretched to flatten the surface of the protective cover film. After processing, the protective cover film forms several individual protective cover flat sheets.

[0010] S4. Stack the protective cover flat sheets and store them in the warehouse to complete the processing.

[0011] Preferably, the protective cover is formed by folding, splicing and bonding the flat sheet of the protective cover. The flat sheet of the protective cover includes a high-oxygen silicone cloth. Both the upper and lower sides of the high-oxygen silicone cloth are covered with a PET single-sided adhesive film. The PET single-sided adhesive film is formed by composite of acrylic adhesive, PET and release film. The PET single-sided adhesive film is an acrylic resin PET protective film, which is composed of acrylic adhesive, PET and release film.

[0012] Preferably, the processing device includes a mounting housing, with limit blocks provided on both sides of the top of the mounting housing, a rotating rod provided on the outer wall of the limit block, and limit grooves provided in the middle and on one side of the rotating rod;

[0013] A fixed frame is provided, with rotating rods rotatably connected to each of its four corners. The fixed frame and the mounting housing are connected by springs. A discharge chute is provided in the middle of the fixed frame. A sliding block is slidably connected inside the limiting groove at one end of each rotating rod. The number of sliding blocks is set to two, and a lifting shaft is provided between the two sliding blocks.

[0014] Preferably, the mounting housing is provided with a conveyor belt structure inside, and the number of mounting housings is set to two, with a mounting frame provided between the two mounting housings.

[0015] Preferably, the top of the mounting housing is provided with a top plate, and a sliding groove is formed between the top plate and the mounting housing, with a sliding block slidably connected inside the sliding groove.

[0016] Preferably, the top plate is positioned directly above the sliding block, and the top plate and the sliding block cooperate with each other.

[0017] Preferably, the mounting frame is equipped with an electric telescopic rod, and one end of the electric telescopic rod is equipped with a protective cover cutting device. The protective cover cutting device is located directly above the discharge chute, and the cross-section of the protective cover cutting device is equal to the cross-section of the discharge chute.

[0018] Preferably, it also includes an extrusion plate, on both sides of the horizontal center line of the extrusion plate, and a return spring is rotatably connected inside the auxiliary groove. One end of the return spring is connected to the outer wall of the protective cover cutting device, and the outer wall of the return spring is in contact with the inner side of the extrusion plate.

[0019] A battery protective cover cutting device, such as the battery protective cover processing device integrating conveying, cutting and stretching as described above.

[0020] The technical solution provided by this invention has the following advantages compared with the prior art:

[0021] The processing method of the present invention is simple and convenient. With the device of the present invention, it can quickly process in batches. During the cutting process, it can smooth out wrinkles and keep the surface of the protective cover film flat. At the same time, it can press the high oxygen silicone cloth and PET single-sided adhesive film, improve the adhesion between the high oxygen silicone cloth and PET single-sided adhesive film. Meanwhile, the PET adhesive film can effectively prevent the high oxygen silicone cloth from getting burrs after cutting, thus improving product quality.

[0022] This invention uses a fixed frame and a protective cover cutting device to fix a flexible battery protective cover during the cutting process. The fixed frame and the protective cover cutting device are in close contact with each other, pushing the fixed frame to move downward. Then, the fixed frame pushes the lifting shaft to move upward through the rotating rod. The lifting shaft drives the flexible battery protective cover to move upward and fit against the top plate, tightening the flexible protective cover and preventing wrinkles from forming during the cutting process. Attached Figure Description

[0023] Figure 1 This is a perspective view of the present invention;

[0024] Figure 2 This is a three-dimensional cross-sectional view of the present invention;

[0025] Figure 3 This is a perspective view of the fixing frame of the present invention;

[0026] Figure 4 This is a perspective view of the mounting housing of the present invention;

[0027] Figure 5 This is a schematic diagram of the protective cover structure of the present invention.

[0028] Figure Labels

[0029] 1. Housing; 2. Conveyor belt structure; 3. Top plate; 4. Slide chute; 5. Lifting shaft; 6. Sliding block; 7. Limiting block; 8. Mounting frame; 9. Fixing frame; 10. Rotating rod; 11. Limiting groove; 12. Discharge chute; 13. Extrusion plate; 14. Auxiliary groove; 15. Return spring; 16. Protective cover cutting device; 17. Electric telescopic rod; 18. PET single-sided adhesive film; 19. High-oxygen silicone cloth. Detailed Implementation

[0030] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "page," "bottom," "inner," "outer," "clockwise," "counterclockwise," "coaxial," "bottom," "one end," "top," "other end," "one side," "front," "both ends," and "both sides," etc., indicating the orientation or positional relationship shown in the accompanying drawings, are only for the convenience of describing this invention and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this invention.

[0031] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this invention, "a plurality of" means two or more, unless otherwise explicitly specified.

[0032] In this invention, unless otherwise explicitly specified and limited, the terms "installed," "connected," "linked," "fixed," and "equipped" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0033] Referring now to the accompanying drawings, the various figures are intended only to illustrate certain exemplary embodiments and are not intended to limit the invention. In the various figures, the same reference numerals denote the same or corresponding parts. The dimensions and scales in the various figures are also for illustration only and should not be construed as limiting the invention; these dimensions may be enlarged relative to actual products.

[0034] Reference Figures 1-5 The battery protective cover processing method shown includes the following steps:

[0035] S1. Inspect the high-oxygen silicone cloth 19 and PET single-sided adhesive film 18, and store them in the warehouse after inspection.

[0036] S2. Take out the stored high-oxygen silicone cloth 19 and PET single-sided adhesive film 18, and attach PET single-sided adhesive film 18 to both sides of the high-oxygen silicone cloth 19 to form a protective cover film.

[0037] S3. The protective cover film is laid flat in a battery protective cover processing device that integrates conveying, cutting and stretching for cutting and processing. During the cutting and hollowing process, the protective cover film is continuously stretched to flatten the surface of the protective cover film. After processing, the protective cover film forms several individual protective cover flat sheets.

[0038] S4. Stack the protective cover flat sheets and store them in the warehouse to complete the processing.

[0039] The PET single-sided adhesive film is an acrylic resin PET protective film, composed of acrylic adhesive, PET, and release film.

[0040]

[0041] The table above shows the composition of the PET single-sided adhesive film 18 of the present invention.

[0042]

[0043]

[0044] The table above shows the performance parameters of the protective cover manufactured using this method.

[0045]

[0046] The table above is the combustion test table for the product of this invention.

[0047]

[0048] The table above is the mechanical performance test table for the product of this invention.

[0049] SiO2 content % ≥96％ JY / T016-1996 Width (CM) 92±2 GB / T-7689.3-2013 / Measuring Tape Thickness (mm) 1.35±0.15 GB / T-7689.1-2013 / Thickness Gauge Operating temperature (°C) 1000 High temperature furnace Strength N / 25*100MM Longitude 1000 Latitude 750 GB / T-7689.5-2013 / Strength Tester

[0050] The table above shows the requirements for traditional high-oxygen silica fiberglass cloth protective covers.

[0051] As shown in the table above, compared with the traditional high-oxygen silica fiberglass cloth protective cover, the tensile strength of multiple samples of the battery protective cover processed by the present invention is much higher than that of the traditional high-oxygen silica fiberglass cloth. The tensile strength is high, and the front side meets the requirements of temperature test above 1000℃ without burn-through. The temperature of the back side is about 250℃ after 4 minutes, which shows good heat insulation performance. In addition, the PET single-sided adhesive film used is free of harmful materials and meets environmental protection requirements.

[0052] The protective cover is formed by folding, splicing and bonding the flat sheet material. The flat sheet material includes a high-oxygen silicone cloth 19. Both the upper and lower sides of the high-oxygen silicone cloth 19 are covered with a PET single-sided adhesive film 18. The PET single-sided adhesive film 18 is formed by combining acrylic adhesive, PET and release film.

[0053] The processing device includes a mounting housing 1, with limit blocks 7 on both sides of the top of the mounting housing 1, and a rotating rod 10 on the outer wall of the limit block 7. The rotating rod 10 has limit grooves 11 in the middle and on one side.

[0054] The fixed frame 9 has rotating rods 10 rotatably connected to each of its four corners. The fixed frame 9 and the mounting housing 1 are connected by springs. The fixed frame 9 has a discharge chute 12 in the middle. A sliding block 6 is slidably connected inside the limiting groove 11 at one end of the rotating rod 10. The number of sliding blocks 6 is set to two, and a lifting shaft 5 is provided between the two sliding blocks 6.

[0055] Furthermore, in the above technical solution, a conveyor belt structure 2 is provided inside the mounting housing 1. Two mounting housings 1 are provided, and a mounting frame 8 is provided between the two mounting housings 1. An electric telescopic rod 17 is provided inside the mounting frame 8. A protective cover cutting device 16 is provided at one end of the electric telescopic rod 17. The protective cover cutting device 16 is positioned directly above the discharge chute 12, and the cross-section of the protective cover cutting device 16 is equal to the cross-section of the discharge chute 12. The electric telescopic rod 17 pushes the protective cover cutting device 16 downwards. The rear protective cover cutting device 16 squeezes the flexible protective cover between the protective cover cutting device 16 and the fixed frame 9, and the extrusion plate 13 on the outer wall of the protective cover cutting device 16 is in contact with the top of the fixed frame 9. The electric telescopic rod 17 continues to drive the protective cover cutting device 16 to move the flexible protective cover downward and cut the flexible protective cover. After cutting, the flexible protective cover of the battery can be directly discharged through the discharge chute 12 in the fixed frame 9. A conveyor belt structure 2 is also provided directly below the discharge chute 12. The conveyor belt structure 2 transports the flexible protective cover after discharge.

[0056] Furthermore, in the above technical solution, a top plate 3 is provided on the top of the mounting housing 1, and a sliding groove 4 is provided between the top plate 3 and the mounting housing 1. A sliding block 6 is slidably connected inside the sliding groove 4. The top plate 3 is located directly above the sliding block 6, and the top plate 3 and the sliding block 6 cooperate with each other. When the fixing frame 9 moves downward, the fixing frame 9 drives the sliding block 6 to slide inside the sliding groove 4 through the rotating rod 10. Then, the sliding block 6 drives the lifting shaft 5 to move upward. The lifting shaft 5 pushes the flexible protective cover upward and pulls the flexible protective cover through the lifting shaft 5 and the top plate 3, so that the flexible protective cover remains flat during the cutting process and avoids creases.

[0057] Furthermore, the above technical solution also includes an extrusion plate 13. The extrusion plate 13 has auxiliary grooves 14 on both sides of its horizontal center line. A return spring 15 is rotatably connected inside the auxiliary grooves 14. One end of the return spring 15 is connected to the outer wall of the protective cover cutting device 16. The outer wall of the return spring 15 is in contact with the inner side of the extrusion plate 13. The return spring 15 can cause the protective cover cutting device 16 to detach from the extrusion plate 13 and continue to be pushed downward by the electric telescopic rod 17 to cut the flexible protective cover material below the protective cover cutting device 16.

[0058] A battery protective cover cutting device, such as the battery protective cover processing device integrating conveying, cutting and stretching as described above.

[0059] The working principle of this practical application is as follows:

[0060] Refer to the instruction manual appendix Figures 1-4 First, when the flexible protective cover of the automobile battery needs to be cut by the cutting processing device, the flexible protective cover material is placed into the top of the conveyor belt structure 2 inside the mounting housing 1. The conveyor belt structure 2 moves the flexible protective cover material to directly below the protective cover cutting device 16. Then, the electric telescopic rod 17 pushes the protective cover cutting device 16 downward. The protective cover cutting device 16 drives the extrusion plate 13 to attach to the top of the fixing frame 9 and pushes the fixing frame 9 downward. The electric telescopic rod 17 continues to push the protective cover cutting device 16 downward, so that the protective cover cutting device 16 stretches the return spring 15. The protective cover cutting device 16 cuts the flexible protective cover material in the discharge trough 12.

[0061] As the fixed frame 9 moves downward, the fixed frame 9 drives the rotating rod 10 to rotate along the connection position between the limiting groove 11 in the middle of the rotating rod 10 and the limiting block 7, and can slide left and right. The limiting groove 11 at one end of the rotating rod 10 drives the sliding block 6 to slide inside the limiting groove 11, and the rotating rod 10 pushes the sliding block 6 to slide upward inside the sliding groove 4. The sliding block 6 drives the lifting shaft 5 to move upward, and the lifting shaft 5 drives the flexible protective cover material on the surface of the conveyor belt structure 2 to move upward, so that the lifting shaft 5 and the top plate 3 cooperate to clamp and pull the flexible protective cover material, so as to prevent wrinkles from appearing in the flexible protective cover material during the cutting process.

[0062] The processing method of this invention, combined with a cutting device, can automatically process protective covers, preventing wrinkles from forming during processing and improving the yield rate. The device of this invention integrates hollowing, stretching, and cutting processing, achieving fully automatic processing, reducing manual operation steps, and improving production efficiency.

[0063] The above-described embodiments are merely illustrative of certain implementations of the present invention, and are described in a relatively specific and detailed manner. However, they should not be construed as limiting the scope of the present invention. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of the present invention, and these modifications and improvements are all within the scope of protection of the present invention. Therefore, the scope of protection of the present invention should be determined by the appended claims.

Claims

1. A method for processing a battery protective cover, characterized in that: The steps include the following: S1. Inspect the high-oxygen silicone cloth (19) and PET single-sided adhesive film (18), and store them in the warehouse after inspection. S2. Take out the stored high-oxygen silicone cloth (19) and PET single-sided adhesive film (18), and initially attach PET single-sided adhesive film (18) to both sides of the high-oxygen silicone cloth (19) to form a protective cover film. S3. The protective cover film is laid flat in the battery protective cover processing device that integrates conveying, cutting and stretching for cutting. During the cutting and hollowing process, the protective cover film is continuously stretched to flatten the surface of the protective cover film. At the same time, the protective cover film is pressed and then attached and pressed again during the cutting process. After the protective cover film is processed, several individual protective cover flat sheets are formed. S4. Stack and store the flat sheets of the protective cover in the warehouse to complete the processing; The processing device includes a mounting housing (1), with limit blocks (7) provided on both sides of the top of the mounting housing (1), and a rotating rod (10) provided on the outer wall of the limit block (7), with limit grooves (11) provided in the middle and on one side of the rotating rod (10). A fixed frame (9) is provided, with rotating rods (10) rotatably connected to each of the four corners of the fixed frame (9). The fixed frame (9) and the mounting housing (1) are connected by springs. A discharge groove (12) is provided in the middle of the fixed frame (9). A sliding block (6) is slidably connected inside the limiting groove (11) at one end of the rotating rod (10). The number of sliding blocks (6) is set to two. A lifting shaft (5) is provided between the two sliding blocks (6). The mounting housing (1) is provided with a conveyor belt structure (2) inside. The number of mounting housings (1) is set to two, and a mounting frame (8) is provided between the two mounting housings (1). The mounting frame (8) is equipped with an electric telescopic rod (17), and a protective cover cutting device (16) is provided at one end of the electric telescopic rod (17). The protective cover cutting device (16) is located directly above the discharge trough (12), and the cross-section of the protective cover cutting device (16) is equal to the cross-section of the discharge trough (12). The top of the mounting housing (1) is provided with a top plate (3), and a sliding groove (4) is provided between the top plate (3) and the mounting housing (1). A sliding block (6) is slidably connected inside the sliding groove (4). The top plate (3) is positioned directly above the sliding block (6), and the top plate (3) and the sliding block (6) cooperate with each other; It also includes an extrusion plate (13), on both sides of the horizontal center line of the extrusion plate (13) are auxiliary grooves (14), and a return spring (15) is rotatably connected inside the auxiliary groove (14). One end of the return spring (15) is connected to the outer wall of the protective cover cutting device (16), and the outer wall of the return spring (15) is in contact with the inner side of the extrusion plate (13).

2. The battery protective cover processing method according to claim 1, characterized in that: The protective cover is formed by folding, splicing and bonding the flat sheet of the protective cover. The flat sheet of the protective cover includes high oxygen silicone cloth (19). Both the upper and lower sides of the high oxygen silicone cloth (19) are attached with PET single-sided adhesive film (18). The PET single-sided adhesive film (18) is formed by combining acrylic adhesive, PET and release film.

3. The battery protective cover processing method according to claim 2, characterized in that: The PET single-sided adhesive film is an acrylic resin PET protective film, composed of acrylic adhesive, PET, and release film.

4. A battery protective cover cutting device, characterized in that, The cutting device is formed by a battery protective cover processing device that integrates conveying, cutting, and stretching for the processing method described in any one of claims 1 to 2.

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