Pole piece double-sided adhesive film stripping device, transfer printing equipment and production line

Abstract

The utility model discloses a pole piece double-sided adhesive film stripping device, transfer printing equipment and a production line, and belongs to the technical field of solid-state battery production, the pole piece double-sided adhesive film stripping device is applied to a transfer printing device and comprises a first adhesive film conveying mechanism, a second adhesive film conveying mechanism, a first stripping mechanism and a second stripping mechanism, the first adhesive film conveying mechanism is used for conveying a first adhesive film; the second adhesive film conveying mechanism is used for conveying a second adhesive film, the conveying direction of the second adhesive film is consistent with the conveying direction of the first adhesive film, and the second adhesive film is located below the first adhesive film; the transfer printing device is used for pressing the pole piece with the first adhesive film and the second adhesive film; the first stripping mechanism comprises a first rubber stripping roller, and a first rubber film bypasses the first rubber stripping roller and is separated from the pole piece; the second stripping mechanism comprises a second rubber stripping roller, the second rubber film bypasses the second rubber stripping roller and is separated from the pole piece, the first rubber stripping roller and the second rubber stripping roller are arranged at an interval along the conveying direction of the first rubber film, and the bending deformation of the pole piece caused by stripping the rubber film is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of solid-state battery production, in particular to a pole piece double-sided adhesive film peeling device. Background Art

[0002] Solid-state batteries use solid electrolytes instead of the separators and liquid electrolytes found in traditional batteries. Solid-state lithium batteries can use lithium metal anodes instead of the graphite or silicon anodes found in traditional lithium-ion batteries. Lithium metal anodes have a higher energy density than traditional anodes, allowing the battery to store more energy within the same volume. Compared to liquid electrolyte layers, the solid electrolyte layer of solid-state batteries is difficult to fully bond to the electrode.

[0003] In order to improve the positioning or bonding effect between the solid electrolyte layer and the electrode, our company sets a rubber frame on both surfaces of the positive electrode or negative electrode through a transfer process. After the rubber frame is pressed onto the positive electrode or negative electrode, the rubber film originally attached to the rubber frame needs to be peeled off from the electrode. During the peeling process, the electrode is easily bent and deformed excessively due to the simultaneous force on both sides of the electrode. Utility Model Content

[0004] The present invention aims to solve at least one of the technical problems existing in the prior art. To this end, the present invention provides a device for peeling off the double-sided adhesive film of a pole piece, which is helpful in reducing the bending deformation of the pole piece when peeling off the adhesive film.

[0005] The utility model also provides a transfer device.

[0006] The utility model also provides a production line.

[0007] According to the embodiment of the first aspect of the present invention, the electrode double-sided film stripping device is applied to a transfer device; the electrode double-sided film stripping device includes: a first film conveying mechanism for conveying the first film; a second film conveying mechanism for conveying the second film, the conveying direction of the second film is consistent with the conveying direction of the first film, and the second film is located below the first film; the transfer device is used to press the electrode with the first film and the second film; the first stripping mechanism includes a first stripping roller, the first film bypasses the first stripping roller and is separated from the electrode; the second stripping mechanism includes a second stripping roller, the second film bypasses the second stripping roller and is separated from the electrode, and the first stripping roller and the second stripping roller are arranged at intervals along the conveying direction of the first film.

[0008] The electrode double-sided film stripping device according to the embodiment of the present invention has at least the following beneficial effects: the electrode double-sided film stripping device is applied to the transfer device, the first film conveying mechanism is used to convey the first film to the transfer device, and the second film conveying mechanism is used to convey the second film to the transfer device. The first film and the second film are arranged up and down, and the electrode to be processed is conveyed between the first film and the second film. The transfer device is used to press the electrode with the first film and the second film so that the frame on the first film and the frame on the second film are respectively transferred to the two surfaces of the electrode, and the first film bypasses the first film stripping roller. By applying traction to the first film, the first film is separated from the electrode at the first stripping roller. The second film is adapted to bypass the second stripping roller, and by applying traction to the second film, the second film is separated from the electrode at the second stripping roller. The conveying direction of the second film is consistent with the conveying direction of the first film. The first stripping roller and the second stripping roller are arranged at intervals along the conveying direction of the first film, that is, one of the first film and the second film is separated from the electrode before the other, which is beneficial to reducing the bending deformation of the electrode when peeling off the first film and the second film, so as to ensure the production quality of the solid-state battery.

[0009] According to some embodiments of the present invention, the first peeling mechanism further includes a first winding component, the first winding component being used to wind up the first adhesive film passing through the transfer device so that the first adhesive film passes around the first stripping roller; and / or,

[0010] The second peeling mechanism further includes a second winding component, which is used to wind up the second adhesive film passing through the transfer device so that the second adhesive film passes around the second stripping roller.

[0011] Optionally, the first peeling mechanism also includes a first winding component, which is used to wind up the first film that passes through the transfer device, that is, after the transfer is completed, the first winding component applies a traction force to the first film so that the first film bypasses the first stripping roller and is separated from the pole piece; optionally, the second peeling mechanism also includes a second winding component, which is used to wind up the second film that passes through the transfer device, that is, after the transfer is completed, the second winding component applies a traction force to the second film so that the second film bypasses the second stripping roller and is separated from the pole piece.

[0012] According to some embodiments of the present invention, the first adhesive film is transported from rear to front, and the second adhesive stripping roller is located in front of the first adhesive stripping roller; and / or,

[0013] The setting height of the first rubber stripping roller is higher than the setting height of the second rubber stripping roller.

[0014] Optionally, the transfer device is used to press the electrode with the first adhesive film and the second adhesive film, so that the first adhesive film and the second adhesive film are respectively adhered to the two surfaces facing away from the electrode, so that the first adhesive film, the second adhesive film and the electrode are transported forward together, and the second adhesive film is located in front of the first adhesive film stripping roller. When the first adhesive film, the second adhesive film and the electrode are transported to the first adhesive film stripping roller together, the first adhesive film bypasses the first adhesive film stripping roller, and the first adhesive film can be peeled off from the electrode. In this process, the electrode tends to move upward with the first adhesive film due to its adhesion to the first adhesive film, but under the action of its own gravity, the electrode will eventually fall back on the second adhesive film. As the second adhesive film and the electrode continue to be transported forward, the second adhesive film and the electrode are transported to the second adhesive film stripping roller together. By bypassing the second stripping roller, the second film can be peeled off from the electrode. During this process, even if the electrode tends to move downward with the second film due to its adhesion to the second film, it will stop falling due to the support provided by the support surface provided downstream, thereby avoiding the electrode from being uncontrollably bent and deformed due to the upward and downward peeling forces at the same time due to its backs to two surfaces; optionally, the setting height of the first stripping roller is higher than the setting height of the second stripping roller, so that the end of the first film is rolled up, thereby realizing the separation of the first film and the electrode, and the end of the second film is rolled down, thereby realizing the separation of the second film and the electrode, which is beneficial to avoid the problem of interference between the first film and the second film.

[0015] According to some embodiments of the present invention, the electrode double-sided adhesive film stripping device further includes a fan, the air outlet of the fan is arranged toward the first stripping roller, so as to apply downward pressure to the electrode transferred to the first stripping roller.

[0016] Specifically, considering that due to the traction force of the first film, the electrode may be transported upward with the first film, resulting in the electrode and the first film cannot be successfully separated, the electrode double-sided film stripping device also includes a fan, the air outlet of the fan is arranged toward the first stripping roller, so as to apply downward pressure to the electrode transferred to the first stripping roller, that is, to apply downward pressure away from the first film to the electrode, so that the first film is smoothly separated from the electrode, ensuring that the electrode falls back to the conveying height of the second film, which is conducive to improving the success rate of stripping the first film.

[0017] According to some embodiments of the present invention, a first adhesive frame and a first isolation film are connected to the first adhesive film, the first adhesive frame is arranged between the first isolation film and the first adhesive film, and the first adhesive film conveying mechanism includes a first unwinding component and a third rewinding component, the first unwinding component is used to unwind the first adhesive film, and the third rewinding component is used to rewind the first isolation film, so that the first adhesive frame is exposed; and / or,

[0018] The second film is connected to a second frame and a second isolation film, and the second frame is arranged between the second isolation film and the second film. The second film conveying mechanism includes a second unwinding component and a fourth winding component. The second unwinding component is used to unwind the second film, and the fourth winding component is used to wind up the second isolation film, leaving the second frame exposed.

[0019] Optionally, the first adhesive film is initially in a coil and is wound around the first unwinding component. The electrode double-sided adhesive film peeling device can unwind the first adhesive film through the rotation of the first unwinding component, thereby realizing the conveyance of the first adhesive film. The first adhesive film is connected to a first adhesive frame and a first isolation film. The first adhesive frame is arranged between the first isolation film and the first adhesive film. The third winding part is used to wind up the first isolation film to separate the first isolation film from the first adhesive frame, that is, the first adhesive frame is exposed. Under the pressing action of the transfer device, the first adhesive frame can be attached to the electrode. Under the peeling action of the first peeling mechanism, the first adhesive film attached to the electrode can be peeled off, thereby realizing the transfer of the first adhesive frame from the first adhesive film to the electrode. Optionally, the second film is initially in a coil and is wound on the second unwinding component. The electrode double-sided film peeling device can unwind the second film through the rotation of the second unwinding component, thereby realizing the transportation of the second film. The second film is connected to a second frame and a second isolation film, and the second frame is arranged between the second isolation film and the second film. The fourth winding part is used to wind up the second isolation film to separate the second isolation film from the second frame, that is, the second frame is exposed. Under the pressure of the transfer device, the second frame can be attached to the electrode. Under the peeling action of the second peeling mechanism, the second film attached to the electrode can be peeled off, thereby realizing the transfer of the second frame from the second film to the electrode.

[0020] The transfer device according to the second embodiment of the present invention includes: a pole piece double-sided adhesive film peeling device as described in any one of the first aspects; and a transfer device for pressing the pole piece with the first adhesive film and the second adhesive film.

[0021] The transfer device according to the embodiment of the present invention has at least the following beneficial effects: the transfer device includes a double-sided adhesive film stripping device as in any one of the first aspects, the first adhesive film conveying mechanism is used to convey the first adhesive film to the transfer device, the second adhesive film conveying mechanism is used to convey the second adhesive film to the transfer device, the first adhesive film and the second adhesive film are arranged up and down, the electrode to be processed is conveyed between the first adhesive film and the second adhesive film, the transfer device is used to press the electrode with the first adhesive film and the second adhesive film, so that the adhesive frame on the first adhesive film and the adhesive frame on the second adhesive film are respectively transferred to the two surfaces of the electrode, and the first adhesive film bypasses the first adhesive film stripping mechanism. Roller, by applying traction to the first film, the first film is separated from the electrode at the first stripping roller, adapted, the second film bypasses the second stripping roller, and by applying traction to the second film, the second film is separated from the electrode at the second stripping roller, the conveying direction of the second film is consistent with the conveying direction of the first film, the first stripping roller and the second stripping roller are arranged at intervals along the conveying direction of the first film, that is, one of the first film and the second film is separated from the electrode before the other, which is beneficial to reduce the bending deformation of the electrode when peeling off the first film and the second film, so as to ensure the production quality of the solid-state battery.

[0022] According to some embodiments of the present invention, the transfer device also includes a visual recognition component and a transfer mechanism. A second adhesive frame is provided on the second adhesive film. The visual recognition component can identify the position of the second adhesive frame. The transfer mechanism is configured to transfer the electrode to the upper end of the second adhesive frame according to the position of the second adhesive frame identified by the visual recognition component.

[0023] In order to improve the accuracy of positioning the second rubber frame and the electrode, and to improve the molding effect of the second rubber frame on the electrode, the transfer equipment also includes a visual recognition component, which can identify the position of the second rubber frame. The transfer mechanism is configured to transfer the electrode to the upper end of the second rubber frame according to the position of the second rubber frame identified by the visual recognition component. The cooperation between the visual recognition component and the transfer mechanism is conducive to more accurately transferring the electrode to the upper end of the second rubber frame, so as to improve the positioning effect of the electrode and the second rubber frame, and thereby improve the molding effect of the second rubber frame on the electrode.

[0024] According to some embodiments of the present invention, the transfer device also includes a pole piece conveying mechanism and a cutting mechanism. The pole piece conveying mechanism is used to convey the pole piece strip to the cutting mechanism. The cutting mechanism is used to cut the pole piece strip into sheet-shaped pole pieces. The transfer mechanism can transfer the pole pieces between the cutting mechanism and the second film conveying mechanism.

[0025] Specifically, the transfer equipment also includes a pole piece conveying mechanism, which is used to convey the pole piece strip to the cutting mechanism, and the cutting mechanism is used to cut the pole piece strip into sheet-shaped pole pieces, that is, automatically realize the cutting of the pole piece strip, and the transfer mechanism can transfer the pole piece between the cutting mechanism and the second film conveying mechanism, that is, the transfer mechanism can convey the cut pole piece to the second film conveying mechanism, and the transfer device can press the frame and the pole piece to realize the transfer of the frame from the first film or the second film to the pole piece.

[0026] According to some embodiments of the present invention, the transfer device also includes a positioning and transferring mechanism, including a positioning component and a transferring component, the positioning component is used to be detachably connected to the first film or the second film, the transferring component is used to drive the positioning component to move back and forth in a straight line, and the conveying direction of the positioning and transferring mechanism is consistent with the conveying direction of the second film conveying mechanism; and / or, the transfer device includes a linear drive, a pressure plate and a workbench, and a pressing space is constructed between the pressure plate and the workbench for the first film and the second film to pass through, and the linear drive is used to drive the pressure plate closer to or away from the workbench.

[0027] Optionally, the positioning component is used to be detachably connected to the first film or the second film to achieve the limitation of the first film or the second film in the transverse plane, and control the first film conveying mechanism or the second film conveying mechanism to cooperate with the positioning transfer mechanism to jointly realize the conveyance of the first film or the second film, so that the first film or the second film is conveyed to the transfer station of the transfer device. Through the detachable connection of the positioning component and the first film or the second film, and the driving of the positioning component by the transfer component, the first film or the second film can be more stably and accurately conveyed to the transfer device, reducing the conveying error caused by the insufficient accuracy of the first film conveying mechanism or the second film conveying mechanism, and helping to reduce the relative offset of the electrode during the conveying process of the first film or the second film, so as to improve the first The positioning accuracy of the film or the second film and the electrode at the transfer device; optionally, specifically, the transfer device includes a linear drive, a pressure plate and a workbench, and a pressing space for the first film and the second film to pass through is constructed between the pressure plate and the workbench, and the linear drive is used to drive the pressure plate closer to or away from the workbench. The linear drive can drive the pressure plate away from the workbench to eliminate the pressing force on the first film and the second film, so that the first film and the second film can be transported along the set direction. After the electrode is transported between the first film and the second film, the linear drive can drive the pressure plate closer to the workbench so that the first film and the second film are pressed against the two surfaces of the electrode respectively, so as to facilitate the transfer of the frame on the first film and the frame on the second film to the two surfaces of the electrode respectively.

[0028] According to the solid-state battery production line of the embodiment of the third aspect of the present utility model, it includes the pole piece double-sided adhesive film peeling device shown in the first aspect.

[0029] The solid-state battery production line according to the embodiment of the present utility model has at least the following beneficial effects: the solid-state battery production line includes the pole piece double-sided film stripping device shown in the first aspect, the pole piece double-sided film stripping device is applied to the transfer device, the first film conveying mechanism is used to convey the first film to the transfer device, and the second film conveying mechanism is used to convey the second film to the transfer device. The first film and the second film are arranged up and down, and the pole piece to be processed is conveyed between the first film and the second film. The transfer device is used to press the pole piece with the first film and the second film so that the frame on the first film and the frame on the second film are respectively transferred to the two surfaces of the pole piece. The first film passes around the first stripping roller, and the first film is separated from the electrode at the first stripping roller by applying traction to the first film. The second film passes around the second stripping roller, and the second film is separated from the electrode at the second stripping roller by applying traction to the second film. The conveying direction of the second film is consistent with the conveying direction of the first film. The first stripping roller and the second stripping roller are arranged at intervals along the conveying direction of the first film, that is, one of the first film and the second film is separated from the electrode before the other, which is beneficial to reduce the bending deformation of the electrode when peeling off the first film and the second film, so as to ensure the production quality of the solid-state battery.

[0030] Additional aspects and advantages of the present invention will be given in part in the following description and will become apparent from the following description or learned through practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] The present invention will be further described below with reference to the accompanying drawings and embodiments, wherein:

[0032] Figure 1 This is a schematic structural diagram of a transfer device according to an embodiment of the present invention;

[0033] Figure 2 This is a front view of a transfer device according to an embodiment of the present invention;

[0034] Figure 3 This is a structural schematic diagram of a transfer device according to an embodiment of the present invention from another perspective;

[0035] Figure 4 for Figure 3 A partial enlarged view of point A of the transfer device shown in FIG.

[0036] Figure Number:

[0037] 100, first film conveying mechanism; 110, first unwinding component; 120, third winding component;

[0038] 200, second film conveying mechanism; 210, second unwinding component; 220, fourth winding component;

[0039] 300, first peeling mechanism; 310, first winding component; 320, first stripping roller;

[0040] 400, second peeling mechanism; 410, second winding component; 420, second stripping roller;

[0041] 500, transfer device;

[0042] 600, fan;

[0043] 700, electrode conveying mechanism;

[0044] 800, cutting mechanism;

[0045] 900. Positioning and transfer mechanism. DETAILED DESCRIPTION

[0046] The following describes in detail embodiments of the present invention. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended only to explain the present invention and are not to be construed as limiting the present invention.

[0047] In the description of the present invention, it should be understood that descriptions involving orientation, such as the orientation or positional relationship indicated by up, down, etc., are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0048] In the description of this utility model, "a plurality" means more than two. The use of "first" or "second" is solely for the purpose of distinguishing technical features and should not be construed as indicating or implying relative importance, or implicitly indicating the number of technical features indicated, or implicitly indicating the order of the technical features indicated.

[0049] In the description of the present invention, unless otherwise clearly defined, terms such as setting, installing, and connecting should be understood in a broad sense, and technicians in the relevant technical field can reasonably determine the specific meanings of the above terms in the present invention based on the specific content of the technical solution.

[0050] Reference Figures 1 to 4As shown, an embodiment of the present invention shows a device for peeling off double-sided adhesive film from a pole piece. The device is applied to a transfer device 500. The transfer device is used to press the adhesive frame and the pole piece together to facilitate the transfer of the adhesive frame to the pole piece surface. The device comprises: a first adhesive film conveying mechanism 100, a second adhesive film conveying mechanism 200, a first peeling mechanism 300, and a second peeling mechanism 400.

[0051] Reference Figure 1 、 Figure 2 and Figure 4 , wherein the first film conveying mechanism 100 is used to convey the first film so that the first film passes through the transfer device 500; the second film conveying mechanism 200 is used to convey the second film so that the second film passes through the transfer device 500, and the second film is located below the first film, and the conveying direction of the second film is consistent with the conveying direction of the first film.

[0052] Reference Figure 2 、 Figure 3 and Figure 4 The first film and the second film are arranged up and down, and the electrode to be processed is transported between the first film and the second film. The transfer device 500 can press the electrode with the first film and the second film so that the frame on the first film and the frame on the second film are respectively transferred to the two surfaces of the electrode.

[0053] Reference Figure 1 、 Figure 2 and Figure 4 The first peeling mechanism 300 includes a first winding component 310 and a first stripping roller 320. The first winding component 310 is used to wind up the first film passing through the transfer device 500, so that the first film bypasses the first stripping roller 320 and is separated from the electrode. By applying traction to the first film, the first film is separated from the electrode at the first stripping roller.

[0054] Reference Figure 1 、 Figure 2 and Figure 4 The second peeling mechanism 400 includes a second winding component 410 and a second stripping roller 420. The second winding component 410 is used to wind up the second film passing through the transfer device 500, so that the second film bypasses the second stripping roller 420 and is separated from the electrode. By applying traction to the second film, the second film is separated from the electrode at the second stripping roller.

[0055] Reference Figure 1 、 Figure 2 and Figure 4The second film is conveyed in the same direction as the first film, and the first and second stripping rollers 320 and 420 are spaced apart along the conveying direction of the first film. This means that one of the first and second films separates from the electrode sheet before the other, minimizing bending and deformation of the electrode sheet during the peeling process, thereby ensuring the production quality of solid-state batteries.

[0056] Reference Figure 2 、 Figure 3 and Figure 4 It can be understood that the electrode double-sided film stripping device also includes a frame, the first stripping roller 320 and the second stripping roller 420 are parallel to each other, and are both rotatably connected to the frame. As the first film moves, the first film abuts against the first stripping roller 320, and the first stripping roller 320 can be driven to rotate. As the second film moves, the second film abuts against the second stripping roller 420, and the second stripping roller 420 can be driven to rotate, thereby realizing the stripping of the first film and the second film.

[0057] Reference Figure 1 、 Figure 2 and Figure 4 It is understandable that the following description will be made using the example of the first and second adhesive films being conveyed from back to front, and the second adhesive stripping roller 420 is located in front of the first adhesive stripping roller 320 .

[0058] The transfer device 500 presses the electrode with the first film and the second film, so that the first film and the second film are respectively adhered to the two surfaces facing away from the electrode, so that the first film, the second film and the electrode are transported forward together. The second stripping roller 420 is located in front of the first stripping roller 320. When the first film, the second film and the electrode are transported to the first stripping roller 320 together, the first film bypasses the first stripping roller 320, so that the first film can be peeled off from the electrode first. In this process, the electrode tends to move upward with the first film due to its adhesion to the first film, but under the action of the electrode's own gravity, the electrode will eventually fall back on the second film.

[0059] Then, as the second film and the electrode continue to be transported forward, the second film and the electrode are transported together to the second stripping roller 420. Since the second film bypasses the second stripping roller 420, the second film can be peeled off from the electrode. In this process, even if the electrode tends to move downward with the second film due to its adhesion to the second film, it will stop falling due to the support provided by the support surface provided downstream, thereby avoiding the electrode from bending and deforming uncontrollably due to the upward and downward peeling forces acting on the two surfaces at the same place at the back of the electrode.

[0060] Reference Figure 1 、 Figure 3 and Figure 4, that is, the electrode is successively conveyed to the first stripping roller 320 and the second stripping roller 420, and the first film is separated from the electrode before the second film, and the first film is located above the second film. Under the cooperation of the first stripping roller 320 and the first winding component 310, the first film is separated from the electrode at the first stripping roller 320. Under the action of the electrode's own weight, the electrode separated from the first film can fall back to the conveying height of the second film, and then under the cooperation of the second stripping roller 420 and the second winding component 410, the second film is separated from the electrode at the second stripping roller 420, thereby realizing the separation of the first film and the second film from the electrode in turn, which is conducive to avoiding the problem of excessive bending and deformation caused by the two surfaces of the electrode being subjected to traction at the same time, and is conducive to reducing the bending and deformation of the electrode when peeling off the first film and the second film, so as to ensure the production quality of the solid-state battery.

[0061] It should be understood that in some other embodiments, the first and second films are conveyed from back to front, with the first stripping roller 320 located in front of the second stripping roller 420. That is, the electrode is conveyed to the second stripping roller 420 and the first stripping roller 320 in sequence, and the second film is separated from the electrode before the first film. Under the cooperative action of the second stripping roller 420 and the second winding member 410, the second film is separated from the electrode at the second stripping roller 420. Under the cooperative action of the first stripping roller 320 and the first winding member 310, the first film is separated from the electrode at the first stripping roller 320, thereby achieving the sequential separation of the second film and the first film from the electrode. This helps to avoid the problem of excessive bending and deformation caused by the two surfaces of the electrode being subjected to traction at the same time, and helps to reduce the bending and deformation of the electrode when the first and second films are peeled off, thereby ensuring the production quality of the solid-state battery.

[0062] Reference Figure 1 、 Figure 2 and Figure 4 It can be understood that, in this embodiment, the setting height of the first stripping roller 320 is higher than the setting height of the second stripping roller 420, so that the end of the first film is rolled up, thereby realizing the separation of the first film and the electrode, and the end of the second film is rolled down, thereby realizing the separation of the second film and the electrode, which is beneficial to avoid the problem of interference between the first film and the second film.

[0063] Reference Figure 1 、 Figure 2 and Figure 4It can be understood that the electrode double-sided film peeling device also includes a support frame. The first film is transported from the back to the front. The support frame is located in front of the second peeling roller 420 to support the electrode separated from the second film. The second film is peeled off from the electrode through the second peeling mechanism 400. The support frame can support the electrode separated from the second film to realize the collection and placement of the electrode.

[0064] Reference Figure 1 、 Figure 2 and Figure 4 It is understandable that, considering that under the traction force of the first film, the electrode may be transported upward with the first film, resulting in the first film and the electrode cannot be successfully separated, the electrode double-sided film peeling device also includes a fan 600.

[0065] Reference Figure 1 、 Figure 2 and Figure 4 The air outlet of the fan 600 is set toward the first stripping roller 320 to apply downward pressure to the electrode transferred to the first stripping roller 320, so that the first film is smoothly separated from the electrode, ensuring that the electrode falls back to the conveying height of the second film, which is conducive to improving the success rate of peeling off the first film.

[0066] Reference Figure 1 、 Figure 2 and Figure 4 Specifically, the fan 600 is located above the first stripping roller 320, and the air outlet of the fan 600 is set downward, thereby applying downward pressure to the electrode transferred to the first stripping roller 320, that is, applying downward pressure to the electrode away from the first film, so that the first film is smoothly separated from the electrode, which is beneficial to improving the success rate of peeling off the first film.

[0067] Reference Figure 1 、 Figure 2 and Figure 4 Specifically, it is understood that a first adhesive frame and a first isolation film are connected to the first adhesive film, with the first adhesive frame disposed between the first isolation film and the first adhesive film. The first adhesive film conveying mechanism 100 includes a first unwinding component 110 and a third rewinding component 120. The first unwinding component 110 is used to unwind the first adhesive film, and the third rewinding component 120 is used to rewind the first isolation film, leaving the first adhesive frame exposed. The transfer device 500 can press the first adhesive frame and the electrode to transfer the first adhesive frame from the first adhesive film to the electrode.

[0068] Reference Figure 1 、 Figure 2 and Figure 4The first film is initially in a coil state and is wound on the first unwinding component 110. The electrode double-sided film peeling device can unwind the first film through the rotation of the first unwinding component 110, and then realize the transportation of the first film. The two ends of the first film are respectively connected to the first unwinding component 110 and the first winding component 310. The first film is connected to the first film frame and the first isolation film. The first film frame is arranged between the first isolation film and the first film. The third winding part is used to wind up the first isolation film to separate the first isolation film from the first film frame, that is, the first film frame is exposed. Under the pressure of the transfer device 500, the first film frame can be attached to the electrode. Under the peeling action of the first peeling mechanism 300, the first film attached to the electrode can be peeled off, thereby realizing the transfer of the first film frame from the first film to the electrode.

[0069] Reference Figure 1 、 Figure 2 and Figure 4 As can be understood, the second film is connected to a second film frame and a second isolation film, with the second film frame positioned between the second isolation film and the second film. The second film conveying mechanism 200 includes a second unwinding member 210 and a fourth rewinding member 220. The second unwinding member 210 is used to unwind the second film, and the fourth rewinding member 220 is used to rewind the second isolation film, leaving the second film frame exposed. The transfer device 500 can press the second film frame against the electrode, transferring the second film frame from the second film to the electrode.

[0070] Reference Figure 1 、 Figure 2 and Figure 4 The second film is initially in a coil and is wound on the second unwinding component 210. The electrode double-sided film peeling device can unwind the second film through the rotation of the second unwinding component 210, and then realize the transportation of the second film. The two ends of the second film are respectively connected to the second unwinding component 210 and the second winding component 410. The second film is connected to the second film frame and the second isolation film. The second film frame is arranged between the second isolation film and the second film. The fourth winding part is used to wind up the second isolation film to separate the second isolation film from the second film frame, that is, the second film frame is exposed. Under the pressure of the transfer device 500, the second film frame can be attached to the electrode. Under the peeling action of the second peeling mechanism 400, the second film attached to the electrode can be peeled off, thereby realizing the transfer of the second film frame from the second film to the electrode.

[0071] Reference Figure 1 、 Figure 2 and Figure 4It should be noted that the first unwinding component 110 includes a first unwinding roller and a first drive motor. The first drive motor drives the first unwinding roller to rotate, thereby unwinding the first film. The second unwinding component 210 includes a second unwinding roller and a second drive motor. The second drive motor drives the second unwinding roller to rotate, thereby unwinding the second film.

[0072] The first winding component 310 includes a first winding roller and a fourth drive motor, and the fourth drive motor drives the first winding roller to rotate, thereby realizing the winding of the first adhesive film; the second winding component 410 includes a second winding roller and a fifth drive motor, and the fifth drive motor drives the second winding roller to rotate, thereby realizing the winding of the second adhesive film; the third winding component 120 includes a third winding roller and a sixth drive motor, and the sixth drive motor drives the third winding roller to rotate, thereby realizing the winding of the first isolation film; the fourth winding component 220 includes a fourth winding roller and a seventh drive motor, and the seventh drive motor drives the fourth winding roller to rotate, thereby realizing the winding of the second isolation film.

[0073] The first drive motor, the fourth drive motor and the sixth drive motor may be the same drive motor, and the second drive motor, the fifth drive motor and the seventh drive motor may be the same drive motor.

[0074] Reference Figure 1 、 Figure 2 and Figure 4 The transfer device provided by one embodiment of the present invention includes the electrode double-sided film peeling device as shown in any of the above embodiments, and a transfer device 500. The transfer device 500 is used to press the electrode with the first film and the second film.

[0075] Reference Figure 1 、 Figure 2 and Figure 4The first film conveying mechanism 100 is used to convey the first film to the transfer device 500, so that the first film is passed through the transfer device 500, and the second film conveying mechanism 200 is used to convey the second film to the transfer device 500, so that the second film is passed through the transfer device 500. The first film and the second film are arranged up and down, and the electrode to be processed is conveyed between the first film and the second film. The transfer device 500 is used to press the electrode with the first film and the second film, so that the frame on the first film and the frame on the second film are respectively transferred to the two surfaces of the electrode. The first winding component 310 is used to wind up the first film passing through the transfer device 500, so that the first film bypasses the first film stripping roller and passes through A traction force is applied to the first film so that the first film is separated from the electrode at the first stripping roller. The second winding component 410 is adapted to wind up the second film passing through the transfer device 500 so that the second film bypasses the second stripping roller. By applying a traction force to the second film, the second film is separated from the electrode at the second stripping roller. The conveying direction of the second film is consistent with the conveying direction of the first film. The second stripping roller 420 and the first stripping roller 320 are arranged at intervals along the conveying direction of the first film, that is, one of the first film and the second film is separated from the electrode before the other, which is beneficial to reduce the bending deformation of the electrode when peeling off the first film and the second film, so as to ensure the production quality of the solid-state battery.

[0076] Reference Figure 1 、 Figure 3 and Figure 4 It is understood that in order to improve the accuracy of positioning the adhesive frame and the electrode, and to improve the effect of molding the adhesive frame on the electrode, the transfer device also includes a visual recognition component and a transfer mechanism. The second adhesive film is provided with a second adhesive frame, and the visual recognition component can identify the position of the second adhesive frame. The transfer mechanism is configured to transfer the electrode to the upper end of the second adhesive frame according to the position of the second adhesive frame identified by the visual recognition component, so as to achieve stacking of the electrode and the second adhesive film. Under the conveying action of the second adhesive film conveying mechanism 200, the electrode and the second adhesive film are conveyed forward together, cooperating with the conveying action of the first adhesive film conveying mechanism 100, so that the electrode is arranged between the first adhesive film and the second adhesive film. The first adhesive film is provided with a first adhesive frame.

[0077] Reference Figure 1 、 Figure 3 and Figure 4 The transfer mechanism is configured to transfer the pole piece to the upper end of the second rubber frame according to the position of the second rubber frame identified by the visual recognition component. Through the cooperation of the visual recognition component and the transfer mechanism, it is conducive to more accurately transferring the pole piece to the upper end of the second rubber frame, so as to improve the positioning effect of the pole piece and the second rubber frame, and thereby improve the molding effect of the second rubber frame on the pole piece.

[0078] Reference Figure 1 、 Figure 3 and Figure 4 It should be noted that the visual recognition component can locate the position of the second rubber frame through image recognition, which is conducive to more accurately transferring the pole piece to the upper end of the second rubber frame, so as to improve the positioning effect of the pole piece and the second rubber frame, and thereby improve the molding effect of the second rubber frame on the pole piece.

[0079] Reference Figure 2 、 Figure 3 and Figure 4 It should be understood that in some other embodiments, the visual recognition component can also identify the position of the second rubber frame by means of cursor recognition, such as printing an identification cursor at the same time as the second rubber frame of the second rubber film is printed, and the transfer mechanism locates the position of the second rubber frame through the visual recognition component, thereby accurately placing the electrode on the upper end of the second rubber frame.

[0080] Reference Figure 1 、 Figure 2 and Figure 4 It can be understood that the transfer device also includes a pole piece conveying mechanism 700 and a cutting mechanism 800. The pole piece conveying mechanism 700 is used to convey the pole piece strip to the cutting mechanism 800. The cutting mechanism 800 is used to cut the pole piece strip into sheet-shaped pole pieces. The transfer mechanism can transfer the pole pieces between the cutting mechanism 800 and the second film conveying mechanism 200.

[0081] The electrode sheet conveying mechanism 700 is used to convey the electrode sheet material strip to the cutting mechanism 800. The cutting mechanism 800 is used to cut the electrode sheet material strip into sheet-shaped electrodes, that is, automatically realize the cutting of the electrode sheet material strip. The transfer mechanism can transfer the electrode sheet between the cutting mechanism 800 and the second film conveying mechanism 200, that is, the transfer mechanism can convey the cut electrode sheet to the upper end of the second frame of the second film. The transfer device 500 can press the frame and the electrode sheet to realize the transfer of the frame from the first film or the second film to the electrode sheet.

[0082] Reference Figure 1 、 Figure 2 and Figure 4 Specifically, the electrode material strip is initially in coil form. The electrode conveying mechanism 700 includes a third unwinding component that unwinds the electrode material strip so that the electrode material strip can be conveyed to the cutting mechanism 800 for cutting. The electrode cutting mechanism 800 includes a cutter and a lifting drive. The lifting drive drives the cutter toward or away from the electrode material strip to cut the electrode material strip, thereby obtaining sheet-shaped electrode sheets.

[0083] Reference Figure 1 、 Figure 2 and Figure 4It should be noted that the third unwinding component includes a third unwinding roller and a third drive motor. The third drive motor drives the third unwinding roller to rotate, thereby realizing the unwinding of the electrode strip.

[0084] Reference Figure 1 、 Figure 2 and Figure 4 It should be noted that the lifting drive can be an electric push rod, a pneumatic push rod or a hydraulic drag rod, etc., to drive the cutter to move closer to or away from the pole piece strip, so as to achieve cutting of the pole piece strip and obtain sheet-shaped pole pieces.

[0085] Reference Figure 1 、 Figure 2 and Figure 4 It can be understood that the transfer mechanism includes a connecting member, a transverse plane driving device and a lifting linear driving device. The connecting member has a suction cup or a clamping claw. The suction cup adsorbs the pole piece or the clamping claw clamps the pole piece, so as to realize the detachable connection between the connecting member and the pole piece. The transverse plane driving device and the lifting linear driving device are both cylinders, oil cylinders, linear modules, screw slider mechanisms, etc. The connecting member can be driven to move in the transverse plane by the transverse plane driving device, and can be driven to move up and down by the lifting linear driving device, thereby realizing the transportation of the pole piece.

[0086] Reference Figure 1 、 Figure 2 and Figure 4 It can be understood that the transfer device also includes a positioning and transferring mechanism 900, including a positioning component and a transferring component. The positioning component is used to be detachably connected to the first film or the second film, and the transferring component is used to drive the positioning component to move back and forth in a straight line. The conveying direction of the positioning and transferring mechanism 900 is consistent with the conveying direction of the second film conveying mechanism 200.

[0087] Reference Figure 1 、 Figure 2 and Figure 4 The positioning component is used to be detachably connected to the first film or the second film to achieve the limitation of the first film or the second film in the horizontal plane, and control the first film conveying mechanism 100 or the second film conveying mechanism 200 to cooperate with the positioning transfer mechanism 900 to jointly realize the conveyance of the first film or the second film, so that the first film or the second film is conveyed to the transfer station of the transfer device 500. Through the detachable connection between the positioning component and the first film or the second film, and the driving of the positioning component by the transfer component, the first film or the second film can be more stably and accurately conveyed to the transfer device 500, reducing the conveying error caused by the insufficient accuracy of the first film conveying mechanism 100 or the second film conveying mechanism 200, and helping to reduce the relative offset of the electrode during the conveying process of the first film or the second film, so as to improve the positioning accuracy of the first film or the second film and the electrode at the transfer device 500.

[0088] Reference Figure 1 、 Figure 2 and Figure 4 Specifically, the positioning component includes a support plate, a pressure block and an opening and closing driver. When the first film or the second film is passed around the positioning component, the first film or the second film can be passed between the pressure block and the support plate, and the opening and closing driver of the positioning component drives the pressure block to be close to the support plate, so that the pressure block and the support plate can jointly clamp the first film or the second film, and cooperate with the driving of the transfer component to realize the pressure clamping and conveying of the first film or the second film. Through the joint clamping of the pressure block and the support plate on the first film or the second film, the first film or the second film can be horizontally clamped. The limitation to the plane is beneficial to reducing the positioning error caused by the offset of the first film conveying mechanism 100 or the second film conveying mechanism 200 on the horizontal plane, and is beneficial to reducing the relative displacement of the electrode relative to the first film or the second film during the conveying process. Under the joint conveying action of the first film conveying mechanism 100 or the second film conveying mechanism 200 and the positioning transfer mechanism 900, the electrode and the first film or the second film are accurately conveyed to the transfer device 500 to realize the molding process of the electrode, so that a plastic frame is formed on the electrode.

[0089] Reference Figure 1 、 Figure 2 and Figure 4 It should be noted that the transfer assembly can be a linear conveying mechanism such as a screw slider mechanism, a belt conveyor mechanism, a chain conveyor mechanism, etc., to drive the positioning assembly to move back and forth linearly. The opening and closing drive can be a linear drive mechanism such as an electric push rod, a hydraulic push rod, or a starter push rod.

[0090] Reference Figure 1 、 Figure 2 and Figure 4 It can be understood that the transfer device 500 includes a linear drive, a pressure plate and a workbench. A pressing space for the first film and the second film to pass through is constructed between the pressure plate and the workbench. The linear drive is used to drive the pressure plate closer to or away from the workbench.

[0091] Reference Figure 1 、 Figure 2 and Figure 4Specifically, a pressing space for the first film and the second film to pass through is constructed between the pressing plate and the workbench, and the linear drive is used to drive the pressing plate closer to or away from the workbench. The linear drive can drive the pressing plate away from the workbench to eliminate the pressing force on the first film and the second film, so that the first film and the second film can be transported along the set direction. After the electrode is placed between the first film and the second film, the linear drive can drive the pressing plate closer to the workbench to make the first film and the second film pressed against the two surfaces of the electrode respectively, so as to facilitate the transfer of the first frame on the first film and the first frame on the second film to the two surfaces of the electrode respectively.

[0092] It should be noted that the linear drive can be a linear drive mechanism such as an electric push rod, a hydraulic push rod or a starting push rod.

[0093] Reference Figure 1 、 Figure 2 and Figure 4 It is understandable that the transfer device 500 also includes a heater, which is used to supply heat to the glue frame. The glue frame includes a first glue frame and a second glue frame. The heater supplies heat to the glue frame to facilitate the transfer of the glue frame to the surface of the electrode, thereby improving the transfer efficiency of the glue frame.

[0094] Reference Figure 1 、 Figure 2 and Figure 4 A solid-state battery production line according to one embodiment of the present invention includes a pole piece double-sided adhesive film peeling device as shown in any of the above embodiments.

[0095] Reference Figure 1 、 Figure 2 and Figure 4The solid-state battery production line includes the electrode double-sided film stripping device shown in any of the above embodiments, which is applied to the transfer device 500. The first film conveying mechanism 100 is used to convey the first film to the transfer device 500, so that the first film is passed through the transfer device 500. The second film conveying mechanism 200 is used to convey the second film to the transfer device 500, so that the second film is passed through the transfer device 500. The first film and the second film are arranged up and down. The electrode to be processed is conveyed between the first film and the second film. The transfer device 500 is used to press the electrode with the first film and the second film, so that the frame on the first film and the frame on the second film are respectively transferred to the two surfaces of the electrode. The first winding component 310 is used to wind up and pass through the transfer device The first film of the transfer device 500 is arranged so that the first film bypasses the first stripping roller, and the first film is separated from the electrode at the first stripping roller by applying traction to the first film. The second winding component 410 is adapted to wind up the second film passing through the transfer device 500, so that the second film bypasses the second stripping roller, and the second film is separated from the electrode at the second stripping roller by applying traction to the second film. The conveying direction of the second film is consistent with the conveying direction of the first film. The second stripping roller 420 and the first stripping roller 320 are arranged at intervals along the conveying direction of the first film, that is, one of the first film and the second film is separated from the electrode before the other, which is beneficial to reduce the bending deformation of the electrode when peeling off the first film and the second film, so as to ensure the production quality of the solid-state battery.

[0096] The embodiments of the present invention are described in detail above with reference to the accompanying drawings. However, the present invention is not limited to the above embodiments. Various changes can be made within the scope of knowledge possessed by ordinary technicians in the relevant technical field without departing from the purpose of the present invention.

Claims

1. The device for peeling off the double-sided adhesive film of the electrode piece is characterized by: Applicable to a transfer device (500); the electrode double-sided adhesive film peeling device comprises: A first adhesive film conveying mechanism (100) is used to convey the first adhesive film; The second film conveying mechanism (200) is used to convey the second film, the conveying direction of the second film is consistent with the conveying direction of the first film, and the second film is located below the first film; the transfer device (500) is used to press the electrode with the first film and the second film; A first peeling mechanism (300) comprises a first stripping roller (320), wherein the first adhesive film passes around the first stripping roller (320) and is separated from the electrode; The second peeling mechanism (400) includes a second stripping roller (420), the second adhesive film passes around the second stripping roller (420) and is separated from the electrode, and the first stripping roller (320) and the second stripping roller (420) are arranged at intervals along the conveying direction of the first adhesive film.

2. The electrode double-sided adhesive film peeling device according to claim 1, characterized in that: The first peeling mechanism (300) further comprises a first winding component (310), the first winding component (310) being used to wind up the first adhesive film passing through the transfer device (500), so that the first adhesive film passes around the first stripping roller (320); and / or, The second peeling mechanism (400) further comprises a second winding component (410), and the second winding component (410) is used to wind up the second adhesive film passing through the transfer device (500), so that the second adhesive film passes around the second stripping roller (420).

3. The electrode double-sided adhesive film peeling device according to claim 1, characterized in that: The first adhesive film is transported from the rear to the front, and the second adhesive stripping roller (420) is located in front of the first adhesive stripping roller (320); and / or, The setting height of the first stripping roller (320) is higher than the setting height of the second stripping roller (420).

4. The electrode double-sided adhesive film peeling device according to claim 1, characterized in that: It also includes a fan (600), the air outlet of the fan (600) is arranged toward the first stripping roller (320), so as to apply downward pressure to the pole piece transferred to the first stripping roller (320).

5. The electrode double-sided adhesive film peeling device according to claim 1, characterized in that: A first adhesive frame and a first isolation film are connected to the first adhesive film, the first adhesive frame is arranged between the first isolation film and the first adhesive film, the first adhesive film conveying mechanism (100) comprises a first unwinding component (110) and a third rewinding component (120), the first unwinding component (110) is used to unwind the first adhesive film, and the third rewinding component (120) is used to rewind the first isolation film, so that the first adhesive frame is exposed; and / or, The second adhesive film is connected to a second adhesive frame and a second isolation film, the second adhesive frame is arranged between the second isolation film and the second adhesive film, the second adhesive film conveying mechanism (200) comprises a second unwinding component (210) and a fourth rewinding component (220), the second unwinding component (210) is used to unwind the second adhesive film, and the fourth rewinding component (220) is used to rewind the second isolation film, so that the second adhesive frame is exposed.

6. Transfer device, characterized in that, include: The electrode double-sided adhesive film peeling device according to any one of claims 1 to 5; The transfer device (500) is used for pressing the electrode with the first adhesive film and the second adhesive film.

7. The transfer device according to claim 6, characterized in that: It also includes a visual recognition component and a transfer mechanism. A second glue frame is provided on the second glue film. The visual recognition component can identify the position of the second glue frame. The transfer mechanism is configured to transfer the pole piece to the upper end of the second glue frame according to the position of the second glue frame identified by the visual recognition component.

8. The transfer device according to claim 7, characterized in that: It also includes a pole piece conveying mechanism (700) and a cutting mechanism (800), wherein the pole piece conveying mechanism (700) is used to convey the pole piece material strip to the cutting mechanism (800), and the cutting mechanism (800) is used to cut the pole piece material strip into sheet-shaped pole pieces, and the transfer mechanism is capable of transferring the pole pieces between the cutting mechanism (800) and the second film conveying mechanism (200).

9. The transfer device according to claim 6, characterized in that: It also includes a positioning and transfer mechanism (900), comprising a positioning component and a transfer component, wherein the positioning component is used to be detachably connected to the first adhesive film or the second adhesive film, and the transfer component is used to drive the positioning component to move back and forth in a straight line, and the conveying direction of the positioning and transfer mechanism (900) is consistent with the conveying direction of the second adhesive film conveying mechanism; and / or, The transfer device (500) comprises a linear drive, a pressing plate and a workbench, a pressing space for the first adhesive film and the second adhesive film to pass through is constructed between the pressing plate and the workbench, and the linear drive is used to drive the pressing plate to move closer to or farther from the workbench.

10. Solid-state battery production line, characterized in that, It comprises a pole piece double-sided adhesive film peeling device as described in any one of claims 1 to 5.

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