A device for preparing a gum frame ribbon

Abstract

The application relates to a rubber frame material tape preparation device. The rubber frame material tape preparation device comprises a first unwinding assembly for unwinding and outputting a first rubber frame incoming material tape; a second unwinding assembly for unwinding and outputting a first release film; a first composite cutting assembly arranged downstream of the first unwinding assembly and the second unwinding assembly, used for compositing the passing first rubber frame incoming material tape and the first release film, and cutting a notch on one side edge of the passing first rubber frame incoming material tape; a third unwinding assembly arranged downstream of the first composite cutting assembly, used for unwinding and outputting a second rubber frame incoming material tape; and a second composite cutting assembly arranged downstream of the third unwinding assembly, used for compositing the passing first release film and the first rubber frame incoming material tape with the second rubber frame incoming material tape, and cutting the passing first rubber frame incoming material tape and the second rubber frame incoming material tape into a rubber frame.

Description

Technical Field

[0001] This application relates to the field of solid-state battery manufacturing equipment technology, specifically to a frame material preparation device. Background Technology

[0002] With the continuous advancement of technology and the increasing demands of people, battery technology is also constantly evolving. Among them, solid-state batteries are a new type of battery technology that uses a solid electrolyte instead of a liquid electrolyte. Compared with traditional liquid batteries, solid-state batteries have advantages such as higher energy density, faster charging speed, better safety performance, and longer lifespan, and have attracted widespread attention.

[0003] In existing technologies, solid-state batteries generally include a positive electrode, a negative electrode, a solid electrolyte, and a frame. The process requires first cutting the positive and negative electrode sheets, solid electrolyte, and frame into sheets, and then stacking these sheets on a stacking table to form a solid-state battery cell. However, existing solid-state battery manufacturing equipment has low sheet-forming efficiency, which cannot match the stacking efficiency of the stacking process, resulting in low overall equipment production efficiency and an inability to meet capacity requirements. Utility Model Content

[0004] Therefore, it is necessary to provide a film preparation device that can improve film production efficiency and better meet production capacity requirements to address the above problems.

[0005] An apparatus for preparing adhesive frame tape, comprising: The first unwinding assembly is used to unwind and output the first rubber frame material tape; The second unwinding assembly is used to unwind and output the first release film; The first composite cutting assembly is arranged downstream of the first unwinding assembly and the second unwinding assembly, and is used to composite the first adhesive frame material tape and the first release film, and to cut a notch on one side edge of the first adhesive frame material tape. The third unwinding assembly, located downstream of the first composite cutting assembly, is used to unwind and output the second frame feed tape; and The second composite cutting assembly is arranged downstream of the third unwinding assembly and is used to composite the first release film and the first frame feed tape with the second frame feed tape, and to cut the first frame feed tape and the second frame feed tape into frames.

[0006] In some embodiments, the first composite cutting assembly includes a first composite unit and a first cutting assembly, the first composite unit being used for the first release film and the first adhesive frame feed tape to pass through and be composited, and the first cutting assembly being arranged downstream of the first composite unit.

[0007] In some embodiments, the first composite unit includes two first pressure rollers arranged opposite to each other, and a first composite channel is formed between the two first pressure rollers for the first adhesive frame feed strip and the first release film to pass through.

[0008] In some embodiments, the first adhesive frame feed tape includes a first adhesive frame film layer and a first release film layer stacked together; The adhesive frame material tape preparation device further includes a first waste material winding assembly, which is arranged between the first cutting assembly and the second composite cutting assembly, and is used to wind up the first release film layer of the first adhesive frame material tape and the waste material formed by the first cutting assembly.

[0009] In some embodiments, the first waste material winding assembly includes a first tape unwinding component, a first pressing unit, and a first tape winding component; The first pressing unit is arranged between the first cutting component and the second composite cutting component. The first tape unwinding component is used to unwind and output the first tape to the first pressing unit. The first pressing unit is used to press the first tape and the incoming material tape of the first frame together. The first tape winding component is used to wind up the first tape that has passed through the first pressing unit.

[0010] In some embodiments, the first waste winding assembly further includes a first guide roller disposed downstream of the first pressing unit, the first guide roller being for the first conveyor belt to be wound around, and the first conveyor belt winding member disposed downstream of the first guide roller for winding the first conveyor belt wound around the first guide roller.

[0011] In some embodiments, the second composite cutting assembly includes a second composite unit and a second cutting assembly. The second composite unit is used for passing through and laminating the first composite strip formed by the first adhesive frame material strip and the first release film with the second adhesive frame material strip. The second cutting assembly is arranged downstream of the second composite unit.

[0012] In some embodiments, the second composite unit includes two second pressure rollers arranged opposite to each other, and a second composite channel is formed between the two second pressure rollers for the first composite material strip formed by the first adhesive frame feed strip and the first release film to pass through with the second adhesive frame feed strip.

[0013] In some embodiments, the second adhesive frame feed tape includes a second adhesive frame film layer and a second release film layer stacked together; The adhesive frame material strip preparation device further includes a second waste material winding assembly, which is arranged downstream of the second cutting assembly and is used to wind up the second release film layer of the second adhesive frame material strip and the waste material formed by the second cutting assembly.

[0014] In some embodiments, the second waste winding assembly includes a second tape unwinding component, a second pressing unit, and a second tape winding component; The second pressing unit is arranged downstream of the second cutting assembly. The second tape unwinding member is used to unwind and output the second tape to the second pressing unit. The second pressing unit is used to press the second tape passing through and the material tape of the second frame. The second tape winding member is used to wind up the second tape that has passed through the second pressing unit.

[0015] In some embodiments, the second waste winding assembly further includes a second guide roller disposed downstream of the second pressing unit, the second guide roller being for the second tape to be wound around, and the second tape winding member disposed downstream of the second guide roller for winding the second tape wound around the second guide roller.

[0016] In some embodiments, the adhesive strip preparation apparatus further includes a sixth pass roller and a fourth unwinding assembly, the sixth pass roller being arranged downstream of the second waste material winding assembly, and the fourth unwinding assembly being used to unwind and output the second release film to the sixth pass roller.

[0017] In some embodiments, the tape preparation apparatus further includes a third guide roller and a winding assembly, the third guide roller being arranged downstream of the second composite cutting assembly, and the winding assembly being arranged downstream of the third guide roller.

[0018] A method for preparing a plastic frame tape includes the following steps: The first release film is unwound and the first adhesive frame material tape is unwound and output, and the first adhesive frame material tape is combined with the first release film to form a first composite material tape; A notch is formed by cutting one side edge of the first adhesive frame material strip on the first composite material strip; The second frame material tape is unwound and output, and then combined with the first composite material tape to form a second composite material tape; wherein, in the second composite material tape, the first frame material tape is located between the second frame material tape and the first release film; The first and second adhesive frame feed tapes on the second composite material tape are cut to form an adhesive frame that is attached to the first release film.

[0019] The aforementioned frame strip preparation apparatus and method utilize a first composite cutting component and a second composite cutting component to sequentially laminate the first frame strip and the second frame strip to the same side of a first release film. The first and second frame strips are then cut into double-layer frames to form the frame strip. This frame strip can be wound and laminated with the negative electrode sheet strip in subsequent processes before being cut to form a composite sheet of the negative electrode sheet and the double-layer frame. This avoids the need to separately cut the two frames, improving sheet production efficiency and thus the overall production efficiency of the machine, better meeting capacity requirements. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the structure of the adhesive frame tape preparation device in one embodiment of this application; Figure 2 for Figure 1 The diagram shows the process of the adhesive frame material strip preparation device cutting the first adhesive frame film layer of the first adhesive frame material strip to form a notch. Figure 3 for Figure 1 The diagram shows the process of cutting the first and second adhesive frame film layers to form a double-layer adhesive frame using the adhesive frame material preparation device. Figure 4 This is a flowchart illustrating the steps of a method for preparing a frame material strip in one embodiment of this application. Detailed Implementation

[0021] To make the above-mentioned objectives, features, and advantages of this application more apparent and understandable, the specific embodiments of this application are described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a thorough understanding of this application. However, this application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this application. Therefore, this application is not limited to the specific embodiments disclosed below.

[0022] In the description of this application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, are only for the convenience of describing this application and simplifying the description, and do not 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 application.

[0023] 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 at least one of that feature. In the description of this application, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0024] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; 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; they can refer to the internal communication of two components or the interaction between two components, unless otherwise expressly limited. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0025] In this application, unless otherwise expressly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0026] It should be noted that when an element is referred to as being "fixed to" or "set on" another element, it can be directly on the other element or there may be an intervening element. When an element is considered to be "connected to" another element, it can be directly connected to the other element or there may be an intervening element. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only possible implementation.

[0027] Please see Figures 1 to 3This application provides a frame material tape preparation apparatus, including a first unwinding assembly 10, a second unwinding assembly 20, a first composite cutting assembly 30, a third unwinding assembly 40, and a second composite cutting assembly 50. The first unwinding assembly 10 is used to unwind and output a first frame material tape a1, and the second unwinding assembly 20 is used to unwind and output a first release film a2. The first composite cutting assembly 30 is arranged downstream of the first unwinding assembly 10 and the second unwinding assembly 20, and is used to composite the passing first frame material tape a1 with the first release film a2 to form a first composite material tape a3. The first composite cutting assembly 30 is also used to cut a notch a12 on one side edge of the first frame material tape a1 of the first composite material tape a3. The third unwinding assembly 40 is arranged downstream of the first composite cutting assembly 30, and is used to unwind and output a second frame material tape a4. The second composite cutting assembly 50 is arranged downstream of the third unwinding assembly 40 and is used to composite the passing first composite material strip a3 with the second frame material strip a4, that is, to attach the second frame material strip a4 to the side of the first frame material strip a1 opposite to the first release film a2, thereby forming the second composite material strip a5. The second composite cutting assembly 50 is also used to cut the passing second composite material strip a5 into double-layer frames a13, thereby forming a frame material strip a6. The frame material strip a6 includes the first release film a2 and a plurality of double-layer frames a13 attached to the same side of the first release film a2, and the plurality of double-layer frames a13 are arranged sequentially at intervals along the length direction of the first release film a2.

[0028] The aforementioned frame strip preparation apparatus utilizes a first composite cutting component 30 and a second composite cutting component 50 to sequentially laminate the first frame strip a1 and the second frame strip a4 to the same side of the first release film a2. The apparatus then cuts the first frame strip a1 and the second frame strip a4 into a double-layer frame a13 to form the frame strip a6. This frame strip a6 can be wound and laminated with the negative electrode strip in subsequent processes before being cut to form a composite sheet of the negative electrode sheet and the double-layer frame a13. This avoids the need to separately cut the two frames, improving sheet production efficiency and thus the overall production efficiency of the machine, better meeting capacity requirements.

[0029] It should also be noted that the above-mentioned frame material strip preparation device uses the first composite cutting component 30 to cut one side edge of the first frame material strip a1 to form a notch a12, so that one of the double-layer frame a13 on the frame material strip a6 has the notch a12. When the composite sheet material made of negative electrode sheet and double-layer frame a13 is stacked alternately with positive electrode sheet to form a battery cell, the notch a12 can be used to accommodate the positive electrode tab on the positive electrode sheet, so as to avoid the positive electrode tab of each layer of positive electrode sheet becoming thicker and thicker during the process of stacking to form a battery cell.

[0030] In embodiments of this application, the first composite cutting assembly 30 includes a first composite unit 32 and a first cutting assembly 33. The first composite unit 32 is arranged downstream of the first unwinding assembly 10 and the second unwinding assembly 20, for the passage of the first frame material tape a1 and the first release film a2, and for bonding the first frame material tape a1 and the first release film a2 to form a first composite material tape a3. That is, the first composite unit 32 presses the passing first frame material tape a1 onto the first release film a2, so that the first frame material tape a1 and the first release film a2 are bonded together to form the first composite material tape a3.

[0031] The first cutting component 33 is arranged downstream of the first composite unit 32 and is used to cut the first frame material strip a1 of the first composite material strip a3, so that a notch a12 is formed on one side edge of the first frame material strip a1. Downstream of the first cutting component 33, the second composite cutting component 50 is arranged downstream of the third unwinding component 40, such that the second composite cutting component 50 composites the second frame material strip a4 to the first composite material strip a3 and cuts the first frame material strip a1 and the second frame material strip a4 into a double-layer frame a13.

[0032] Furthermore, the first frame material tape a1 unwound from the first unwinding assembly 10 includes a first frame film layer a11 and a first release film layer stacked together. Therefore, the first composite material tape a3 passing through the first cutting assembly 33 includes a first release film layer, a first frame film layer a11, and a first release film a2 stacked together in sequence. The first cutting assembly 33 cuts the first release film layer and the first frame film layer a11 of the passing first composite material tape a3, thereby cutting a notch a12 on one side edge of the first frame film layer a11, and forming waste material at the notch a12. In order to remove the waste material and the first release film layer from the first release film a2, the frame tape preparation apparatus also includes a first waste material winding assembly (not shown in the figure). The first waste material winding assembly is arranged between the downstream of the first cutting assembly 33 and the upstream of the second composite cutting assembly 50. It is used to wind up the first release film layer of the first frame tape a1 and the waste material of the first frame film layer a11 at the notch a12, so that the first composite tape a3 includes the first frame film layer a11 with the notch a12 and the first release film a2 stacked together.

[0033] Specifically, in this embodiment, the first waste material winding assembly includes a first tape unwinding member 341, a first pressing unit 343, and a first tape winding member 345. The first pressing unit 343 is arranged between the downstream of the first cutting assembly 33 and the upstream of the second composite cutting assembly 50. The first tape unwinding member 341 is used to unwind and output the first tape b1 to the first pressing unit 343. The first pressing unit 343 is used to press the passing first tape b1 and the first composite material tape a3 together, so that the first tape b1 adheres to the first release film layer and waste material on the passing first composite material tape a3, thereby causing the first release film layer and waste material to move with the first tape b1 toward the first tape winding member 345 and separate from the first release film a2. The first tape winding member 345 is used to wind the first tape b1 that has passed through the first pressing unit 343 and the first release film layer and waste material adhered to the first tape b1.

[0034] Furthermore, the first pressing unit 343 includes two first pressing rollers 3431. These two first pressing rollers 3431 are arranged opposite to each other, forming a first adhesive channel through which the first composite material strip a3 and the first adhesive strip b1 pass. The two first pressing rollers 3431 jointly press the first composite material strip a3 and the first adhesive strip b1 passing through the first adhesive channel, causing the first adhesive strip b1 to adhere to the first release film layer and waste material on the first composite material strip a3. Consequently, when the first adhesive strip winding member 345 winds up the first adhesive strip b1, the first adhesive strip b1 pulls the first release film layer and waste material away from the first release film a2.

[0035] Furthermore, the first waste material winding assembly also includes a first guide roller 347 disposed downstream of the first pressing unit 343. The first guide roller 347 is used for winding the first conveyor belt b1. A first conveyor belt winding member 345 is disposed downstream of the first guide roller 347 for winding the first conveyor belt b1 wound around the first guide roller 347.

[0036] Specifically, in this embodiment, the first composite unit 32 includes two first pressure rollers 321. The two first pressure rollers 321 are arranged opposite to each other, thereby forming a first composite channel E between the two first pressure rollers 321 for the first frame material strip a1 and the first release film a2 to pass through. The first frame material strip a1 unwound by the first unwinding assembly 10 and the first release film a2 unwound by the second unwinding assembly 20 pass together through the first composite channel E between the two first pressure rollers 321. The two first pressure rollers 321 jointly roll the first frame material strip a1 and the first release film a2 passing through the first composite channel E, so that the first frame material strip a1 and the first release film a2 are composited to form a first composite material strip a3. The first cutting assembly 33 is arranged downstream of the two first pressure rollers 35 and is used to cut a notch a12 on one side edge of the first frame material strip a1 on the passing first composite material strip a3.

[0037] Furthermore, the first composite cutting assembly 30 also includes a fourth guide roller 36, which is arranged between the downstream of the first unwinding assembly 10 and the upstream of the first composite unit 32 for the first frame material strip a1 to be wound around and to guide the first frame material strip a1 into the first composite channel E between the two first pressure rollers 321.

[0038] In embodiments of this application, the second composite cutting assembly 50 includes a second composite unit 51 and a second cutting assembly 53. A third unwinding assembly 40 is used to unwind and output the second frame material strip a4 to the second composite unit 51. The second composite unit 51 is used for the second frame material strip a4 and the first composite material strip a3 to pass through, such that the second composite unit 51 rolls the second frame material strip a4 and the first composite material strip a3, thereby combining the second frame material strip a4 and the first composite material strip a3 to form a second composite material strip a5. The second cutting assembly 53 is arranged downstream of the second composite unit 51 and is used to cut the first frame material strip a1 and the second frame material strip a4 on the second composite material strip a5 into a double-layer frame a13. The second composite strip a5 after being cut by the second cutting component 53 includes a first release film a2 and a plurality of double-layer adhesive frames a13 stacked on the same side of the first release film a2. The plurality of double-layer adhesive frames a13 are arranged sequentially along the length direction of the first release film a2.

[0039] Specifically, in this embodiment, the second frame material tape a4 unwound by the third unwinding assembly 40 includes a second frame film layer and a second release film layer stacked together. Therefore, the second composite material tape a5 passing through the second cutting assembly 53 includes a first release film a2, a first frame film layer a11, a second frame film layer, and a second release film layer stacked sequentially. The second cutting assembly 53 cuts the second release film layer, the second frame film layer, and the first frame film layer a11 of the passing second composite material tape a5, cutting the first frame film layer a11 and the second frame film layer into a double-layer frame a13 and waste material. To remove the waste material and the second release film layer from the first release film a2 (leaving only the double-layer frame a13 on the first release film a2), the frame material tape preparation apparatus also includes a second waste material winding assembly. This second waste material winding assembly is arranged downstream of the second cutting assembly 53 and is used to wind up the second release film layer and the waste material formed by the second cutting assembly 53.

[0040] Specifically, in this embodiment, the second waste material winding assembly includes a second tape unwinding member 551, a second pressing unit 553, and a second tape winding member 555. The second tape unwinding member 551 unwinds and outputs the second tape b2 to the second pressing unit 553. The second pressing unit 553 presses the passing second tape b2 onto the passing frame material a6, that is, it presses the wound second tape b2 onto the passing frame material a6, causing the second tape b2 to adhere to the second release film layer and waste material on the passing frame material a6. This allows the second release film layer and waste material to move with the second tape b2 towards the second tape winding member 555 and separate from the first release film a2. The second tape winding member 555 winds up the second tape b2 that has passed through the second pressing unit 553, as well as the second release film layer and waste material adhered to the second tape b2.

[0041] Furthermore, the second pressing unit 553 includes two second pressing rollers 5531. These two second pressing rollers 5531 are arranged opposite to each other, forming a second adhesive channel through which the second composite material strip a5 and the second adhesive strip b2 pass. The two second pressing rollers 5531 jointly roll and press the second composite material strip a5 and the second adhesive strip b2 passing through the second adhesive channel, causing the second adhesive strip b2 to adhere to the second release film layer and waste material on the second composite material strip a5. This allows the second adhesive strip b2 to separate from the first release film a2 when the second adhesive strip winding unit 555 winds up the second adhesive strip b2.

[0042] Furthermore, the second waste winding assembly also includes a second guide roller 557 disposed downstream of the second pressing unit 553. The second guide roller 557 is used for winding the second tape b2. The second tape winding member 555 is disposed downstream of the second guide roller 557 for winding the second tape b2 wound around the second guide roller 557.

[0043] Specifically, in this embodiment, the second composite unit 51 includes two second pressure rollers 511. The two second pressure rollers 511 are arranged opposite to each other and are both located downstream of the first waste material winding assembly. A second composite channel F is formed between the two second pressure rollers 511 for the second frame material strip a4 and the first composite material strip a3 to pass through. The second frame material strip a4 and the first composite material strip a3, unwound from the third unwinding assembly 40, pass together through the second composite channel F between the two second pressure rollers 511. The two second pressure rollers 511 jointly roll the second frame material strip a4 and the first composite material strip a3 passing through the second composite channel F, so that the second frame material strip a4 and the first composite material strip a3 are combined to form a second composite material strip a5. The second cutting assembly 53 is arranged downstream of the two second pressure rollers 511 and is used to cut the first frame material strip a1 and the second frame material strip a4 on the passing second composite material strip a5 into a double-layer frame a13.

[0044] Furthermore, the second composite cutting assembly 50 also includes a fifth guide roller 56, which is arranged between the downstream of the third unwinding assembly 40 and the upstream of the second composite unit 51. The fifth guide roller 56 is used for the second frame material strip a4 unwound from the third unwinding assembly 40 to be wound around, thereby guiding the second frame material strip a4 into the second composite channel F between the two second pressure rollers 511.

[0045] In embodiments of this application, the frame tape preparation apparatus further includes a sixth guide roller 61 and a fourth unwinding assembly 70. The sixth guide roller 61 is arranged downstream of the second waste material winding assembly. The fourth unwinding assembly 70 is used to unwind and output a second release film a7 to the sixth guide roller 61, such that the second release film a7 passing through the sixth guide roller 61 is combined with a second composite tape a5, that is, the second composite tape a5 and the second release film a7 are combined to form a frame tape a6. The frame tape a6 includes a first release film a2, a double-layer frame a13, and a second release film a7 stacked sequentially.

[0046] It should be noted that in other embodiments, the second composite strip a5 and the second release film a7 can also be composited by rolling the second composite strip a5 and the second release film a7 with rollers. As long as the composite of the second composite strip a5 and the second release film a7 can be achieved, it is not limited here.

[0047] In a specific embodiment, the frame material strip preparation apparatus further includes a third guide roller 60 and a winding assembly 80. The third guide roller 60 is arranged downstream of the sixth guide roller 61 and is used for winding the frame material strip a6. The winding assembly 80 is arranged downstream of the third guide roller 60 and is used for winding the frame material strip a6 after passing through the third guide roller 60, thereby forming a frame material roll a8.

[0048] It should be noted that in some embodiments, the third guide roller 60 and the sixth guide roller 61 can be two rollers. The third guide roller 60 and the sixth guide roller 61 are arranged at intervals along the conveying direction of the material belt. In other embodiments, the third guide roller 60 and the sixth guide roller 61 can also be the same roller, as long as it can realize the bonding of the second release film a7 with the second composite material belt a5 and guide the composite frame material belt a6, which is not limited here.

[0049] Based on the above-described apparatus for preparing adhesive frame tape, this application also provides a method for preparing adhesive frame tape. The method for preparing adhesive frame tape includes the following steps: S10: Unwind and output the first release film a2, unwind and output the first frame material tape a1, and combine the first frame material tape a1 with the first release film a2 to form a first composite material tape a3. Specifically, the first release film a2 is unwound and output to the downstream first composite unit 32 using the second unwind assembly 20, and the first frame material tape a1 is unwound and output to the downstream first composite unit 32 using the first unwind assembly 10. The first frame material tape a1 includes a stacked first frame film layer a11 and a first release film layer. The first composite unit 32 realizes the combination of the first release film a2 and the first frame material tape a1 to form the first composite material tape a3. The first composite material tape a3 includes a stacked first release film a2, a first frame film layer a11, and a first release film layer.

[0050] S20. A notch a12 is formed by cutting one side edge of the first frame material strip a1 on the first composite material strip a3. Specifically, the first cutting component 33 is used to cut the first frame film layer a11 and the first release film layer on the first composite material strip a3, thereby forming a notch a12 on one side edge of the first frame film layer a11, and the waste material formed by cutting is located at the notch a12.

[0051] S30. The first adhesive tape b1 is used to adhere the first release film layer and the waste material formed by the first cutting component 33 on the first composite material tape a3. Specifically, the first tape unwinding component 341 unwinds the first tape b1 to the first pressing unit 343, and the first pressing unit 343 presses the first tape b1 onto the passing first composite material tape a3, so that the first tape b1 adheres to the first release film layer and the waste material. The first tape winding component 345 winds up the first tape b1 that has passed through the first pressing unit 343, as well as the first release film layer and waste material adhered to the first tape b1.

[0052] S40: Unwind the second frame material tape a4 and combine it with the first composite tape a3 to form a second composite tape a5. In this second composite tape a5, the first frame material tape a1 is located between the second frame material tape a4 and the first release film a2. Specifically, the second frame material tape a4 is unwound and output to the second composite unit 51 using the third unwinding assembly 40. The second frame material tape a4 includes a stacked second release film layer and a second frame film layer. The second composite unit 51 is used to roll the passing second frame material tape a4 and the first composite tape a3, thus achieving the combination of the second frame material tape a4 and the first composite tape a3 to form the second composite tape a5. The second composite tape a5 includes a first release film a2, a first frame film layer a11, a second frame film layer, and a second release film layer stacked sequentially.

[0053] S50. The first frame film layer a11, the second frame film layer, and the second release film layer on the second composite strip a5 are cut using the second cutting component 53. The first frame film layer a11 and the second frame film layer are cut into a double-layer frame a13 attached to the first release film a2, along with waste material located inside and outside the double-layer frame a13. It is understood that in the double-layer frame a13, one layer is formed by cutting the first frame film layer a11 using the second cutting component 53, and the other layer is formed by cutting the second frame film layer using the second cutting component 53. Since a notch a12 is formed in the first frame film layer a11 during step S20, when the first frame film layer a11 is cut into a frame in step S50, one edge of the frame has the aforementioned notch a12.

[0054] S60. The second adhesive tape b2 is used to adhere the second release film layer and the waste material formed by the second cutting component 53 to the second composite material tape a5. Specifically, the second adhesive tape unwinding member 551 unwinds the second adhesive tape b2 to the second pressing unit 553, and the second pressing unit 553 presses the second adhesive tape b2 onto the passing second composite material tape a5, so that the second adhesive tape b2 adheres to the second release film layer and the waste material. The second adhesive tape winding member 555 winds up the second adhesive tape b2 that has passed through the second pressing unit 553, as well as the second release film layer and waste material adhered to the second adhesive tape b2.

[0055] S70, the second release film a7 is unwound and output to the sixth roller 61 using the fourth unwinding assembly 70, so that the second release film a7 passing through the sixth roller 61 and the second composite material strip a5 are combined to form a frame material strip a6. Specifically, the frame material strip a6 includes a first release film a2, a double-layer frame a13 and a second release film a7 stacked in sequence.

[0056] S80. The frame material strip a6 is wound up using the winding assembly 80 to form a frame material roll.

[0057] Thus, the first frame material strip a1 and the second frame material strip a4 are successively laminated to the same side of the first release film a2, and then the first frame material strip a1 and the second frame material strip a4 are cut into a double-layer frame a13 to form a frame material strip a6. This frame material strip a6 can be laminated with the negative electrode sheet material strip in subsequent processes, and then cut to form a composite sheet material composed of the negative electrode sheet and the double-layer frame a13. This avoids cutting the two frames separately, which helps to improve sheet production efficiency and thus improve the overall production efficiency of the machine, so as to better meet the production capacity requirements.

[0058] It should also be noted that a notch a12 is formed by cutting one side edge of the first frame material strip a1, so that one layer of the double frame a13 of the frame material strip a6 has the notch a12. When the composite sheet material composed of negative electrode sheet and double frame a13 is stacked alternately with positive electrode sheet to form a cell, the notch a12 can be used to accommodate the positive electrode tab on the positive electrode sheet, so as to avoid the positive electrode tab of each layer of positive electrode sheet becoming thicker and thicker during the process of stacking to form a cell.

[0059] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0060] The embodiments described above are merely illustrative of several implementation methods of this application, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the patent application. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this application, and these all fall within the protection scope of this application. Therefore, the protection scope of this patent application should be determined by the appended claims.

Claims

1. A device for preparing adhesive frame tape, characterized in that, include: The first unwinding assembly (10) is used to unwind and output the first rubber frame material tape (a1); The second unwinding assembly (20) is used to unwind and output the first release film (a2); The first composite cutting component (30) is arranged downstream of the first unwinding component (10) and the second unwinding component (20) for bonding the first frame material tape (a1) and the first release film (a2) that are passing through, and for cutting a notch (a12) on one side edge of the first frame material tape (a1) that is passing through. The third unwinding assembly (40) is arranged downstream of the first composite cutting assembly (30) for unwinding and outputting the second frame feed tape (a4); and The second composite cutting assembly (50) is arranged downstream of the third unwinding assembly (40) for bonding the first release film (a2) and the first frame feed tape (a1) with the second frame feed tape (a4) and cutting the first frame feed tape (a1) and the second frame feed tape (a4) into frames.

2. The adhesive frame tape preparation device according to claim 1, characterized in that, The first composite cutting assembly (30) includes a first composite unit (32) and a first cutting assembly (33). The first composite unit (32) is used for the first release film (a2) and the first adhesive frame feed tape (a1) to pass through and be composited. The first cutting assembly (33) is arranged downstream of the first composite unit (32).

3. The adhesive frame tape preparation device according to claim 2, characterized in that, The first composite unit (32) includes two first pressure rollers (321), which are arranged opposite to each other, and a first composite channel (E) is formed between the two first pressure rollers (321) for the first adhesive frame feed strip (a1) and the first release film (a2) to pass through.

4. The adhesive frame tape preparation device according to claim 2, characterized in that, The first adhesive frame material tape (a1) includes a first adhesive frame film layer (a11) and a first release film layer stacked together; The adhesive frame material strip preparation device further includes a first waste material winding assembly, which is arranged between the first cutting assembly (33) and the second composite cutting assembly (50) for winding the first release film layer of the first adhesive frame material strip (a1) and the waste material formed by the first cutting assembly (33).

5. The adhesive frame tape preparation device according to claim 4, characterized in that, The first waste material winding assembly includes a first tape unwinding component (341), a first pressing unit (343), and a first tape winding component (345). The first pressing unit (343) is arranged between the first cutting assembly (33) and the second composite cutting assembly (50). The first tape unwinding member (341) is used to unwind and output the first tape (b1) to the first pressing unit (343). The first pressing unit (343) is used to press the first tape (b1) passing through and the first frame material tape (a1). The first tape winding member (345) is used to wind up the first tape (b1) that has passed through the first pressing unit (343).

6. The adhesive frame tape preparation apparatus according to claim 5, characterized in that, The first waste winding assembly further includes a first guide roller (347) arranged downstream of the first pressing unit (343), the first guide roller (347) being used for the first conveyor belt (b1) passing through, and the first conveyor belt winding member (345) arranged downstream of the first guide roller (347) for winding the first conveyor belt (b1) that has passed through the first guide roller (347).

7. The adhesive frame tape preparation apparatus according to claim 1, characterized in that, The second composite cutting assembly (50) includes a second composite unit (51) and a second cutting assembly (53). The second composite unit (51) is used for the first composite strip (a3) ​​formed by the first adhesive frame material strip (a1) and the first release film (a2) to pass through and be composited with the second adhesive frame material strip (a4). The second cutting assembly (53) is arranged downstream of the second composite unit (51).

8. The adhesive frame tape preparation apparatus according to claim 7, characterized in that, The second composite unit (51) includes two second pressure rollers (511), which are arranged opposite to each other, and a second composite channel (F) is formed between the two second pressure rollers (511) through which the first composite strip (a3) ​​formed by the first adhesive frame material strip (a1) and the first release film (a2) passes and the second adhesive frame material strip (a4).

9. The adhesive frame tape preparation apparatus according to claim 7, characterized in that, The second adhesive frame feed strip (a4) includes a second adhesive frame film layer and a second release film layer stacked together; The adhesive frame material strip preparation device further includes a second waste material winding assembly, which is arranged downstream of the second cutting assembly (53) and is used to wind up the second release film layer of the second adhesive frame material strip (a4) and the waste material formed by the second cutting assembly (53).

10. The adhesive frame tape preparation apparatus according to claim 9, characterized in that, The second waste material winding assembly includes a second tape unwinding component (551), a second pressing unit (553), and a second tape winding component (555). The second pressing unit (553) is arranged downstream of the second cutting assembly (53). The second tape unwinding member (551) is used to unwind and output the second tape (b2) to the second pressing unit (553). The second pressing unit (553) is used to press the second tape (b2) passing through it against the second frame feed tape (a4). The second tape winding member (555) is used to wind up the second tape (b2) that has passed through the second pressing unit (553).

11. The adhesive frame tape preparation apparatus according to claim 10, characterized in that, The second waste winding assembly further includes a second guide roller (557) arranged downstream of the second pressing unit (553), the second guide roller (557) being used for the second conveyor belt (b2) passing through, and the second conveyor belt winding member (555) arranged downstream of the second guide roller (557) for winding the second conveyor belt (b2) that has passed through the second guide roller (557).

12. The adhesive frame tape preparation apparatus according to claim 9, characterized in that, The tape preparation device further includes a sixth pass roller (61) and a fourth unwinding assembly (70). The sixth pass roller (61) is arranged downstream of the second waste material winding assembly, and the fourth unwinding assembly (70) is used to unwind and output the second release film (a7) to the sixth pass roller (61).

13. The adhesive frame tape preparation apparatus according to claim 1, characterized in that, The tape preparation device further includes a third guide roller (60) and a winding assembly (80). The third guide roller (60) is arranged downstream of the second composite cutting assembly (50), and the winding assembly (80) is arranged downstream of the third guide roller (60).

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