High-speed lamination equipment and method

Abstract

The high-speed lamination equipment comprises a stacking mechanism, the stacking mechanism comprises a lamination device and deviation rectifying devices arranged on the two sides of the lamination device respectively, and the lamination device is used for alternately stacking products on the deviation rectifying devices on the two sides; the number of the feeding mechanisms is two, and the feeding mechanisms are symmetrically arranged on the two sides of the stacking mechanism and used for transferring the products to the stacking mechanism; and the diaphragm unwinding mechanism comprises an unwinding assembly used for releasing the diaphragm and a film covering assembly used for guiding the diaphragm into the lamination device. By means of the mode, products on the deviation rectifying device can be stacked alternately, the time for waiting for material taking is not needed, and the stacking efficiency is improved.

Description

Technical Field

[0001] The invention relates to the technical field of lithium battery middle-section cell assembly, and in particular to a high-speed lamination device. Background Art

[0002] Lamination is one of the most core links in the assembly process of lithium battery mid-section cells. It is a production process of stacking the pole pieces and diaphragms alternately to complete the multi-layer laminated pole core. The lamination machine is one of the lithium battery manufacturing equipment, which is divided into Z-shaped lamination machine, cutting and lamination machine, winding and lamination machine, thermal composite lamination machine and other types. At present, with the continuous development of lamination technology in the industry, the process difficulty of Z-stack is relatively low and has a large market space. However, the maturity of the current industry lamination equipment is generally low, especially the efficiency is low, which makes it difficult to meet the production needs of customers. Summary of the invention

[0003] The object of the present invention is to provide a high-speed stacking device, which can alternately stack the products on the correction device without waiting for material retrieval time, thereby improving stacking efficiency, shortening production time and ensuring production accuracy.

[0004] In order to solve the above technical problems, a technical solution adopted by the present invention is: to provide a high-speed lamination device, comprising:

[0005] The stacking mechanism comprises a stacking device and a deviation correcting device arranged on both sides of the stacking device, wherein the stacking device is used to alternately stack the products on the deviation correcting devices on both sides;

[0006] A feeding mechanism, which is provided in units and symmetrically arranged on both sides of the stacking mechanism, and is used to transfer the product to the stacking mechanism;

[0007] The membrane unwinding mechanism comprises an unwinding assembly for releasing the membrane and a coating assembly for introducing the membrane into the laminating device.

[0008] The feeding mechanism includes a feeding robot and a lifting and suction device, a silo and a transfer device which are arranged in parallel and in sequence front and back. The transfer device includes a transfer adsorption platform which moves back and forth. The lifting and suction device absorbs the product in the silo and lifts it to the transfer station. The transfer adsorption platform extends forward to the bottom of the transfer station. The lifting and suction device places the product on the transfer adsorption platform. The feeding robot transfers the product on the transfer adsorption platform to the deviation correction device.

[0009] The feeding robot comprises a rotating assembly, a swing arm and a first adsorption assembly. The rotating end of the rotating assembly is mounted with the swing arm via an adjusting assembly, and the outer end of the swing arm is mounted with the first adsorption assembly which is tilted with the swing arm.

[0010] The angle between the swing arm and the first adsorption component ranges from 140° to 150°.

[0011] The adjusting component includes a mounting end plate fixed to the upper end surface of the rotating component, an adjusting lifting driver is provided on the vertical plate, an adjusting vertical plate is fixedly mounted on the driving end of the adjusting lifting driver, the swing arm is fixedly mounted on the upper portion of the adjusting mounting plate, a supporting plate is mounted between the adjusting vertical plate and the lower end surface of the swing arm, a pulling plate is mounted between the adjusting vertical plate and the upper end surface of the swing arm, and the front end of the pulling plate is close to the front end of the swing arm.

[0012] The lifting and suction device includes a lifting frame, on which a grabbing support arm is installed through a lifting drive, and the outer end of the grabbing support arm is provided with a grabbing fixing plate, and a plurality of suction pieces are arranged on the grabbing fixing plate. The grabbing support arm is provided with at least one group of blowing units, and the blowing port of the blowing unit is aligned with the lower end of the suction piece.

[0013] The deflection correction device includes a deflection correction frame and a deflection correction adsorption platform arranged at the upper end of the deflection correction frame. The transfer adsorption platform and the product placement direction on the deflection correction adsorption platform are vertically arranged. The adsorption component on the loading robot absorbs the product on the transfer adsorption platform onto the deflection correction adsorption platform.

[0014] The stacking device includes a stacking mobile driver and a stacking unit arranged in front and back, the stacking mobile driver is equipped with a diaphragm traction unit and a conveying unit located on both sides of the diaphragm traction unit, the stacking unit is located between the two deviation correcting devices, and the stacking mobile driver drives the two conveying units to transfer the products on the two deviation correcting devices to the stacking unit in turn.

[0015] The deflection correction device comprises a deflection correction lifter and a deflection correction horizontal displacer fixedly arranged at the lifting end of the deflection correction lifter, and a deflection correction adsorption platform is installed at the moving end of the deflection correction horizontal displacer.

[0016] The transport unit comprises a transport base and a transport lifting assembly installed on the transport base, a transport arm is installed on the lifting end of the transport lifting assembly, and a second adsorption assembly is installed at the front end of the transport arm.

[0017] The stacking unit comprises a stacking stand and two groups of film pressing components arranged around the stacking stand. A stacking platform is installed on the upper end of the stacking stand. The two groups of film pressing components are symmetrically arranged along the longitudinal center line of the stacking platform.

[0018] The first adsorption assembly and the second adsorption assembly have the same structure, both comprising an adsorption plate and a plurality of adsorption members, a plurality of mounting holes are arranged on the adsorption plate, the adsorption members are fixedly mounted in the mounting holes, and the lower end edges of the adsorption members extend out of the mounting holes.

[0019] It also includes a first visual fixing frame and a second visual fixing frame, on which a first visual recognition component and a second visual recognition component are respectively installed, and are respectively located above two deviation correcting devices.

[0020] The beneficial effects of the present invention are: a high-speed stacking device can alternately stack the products on the deviation correction device without waiting for material retrieval time, thereby improving stacking efficiency, shortening production time and ensuring production accuracy. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0022] Figure 1 It is an overall schematic diagram of a high-speed lamination device of the present invention;

[0023] Figure 2 It is a structural schematic diagram of a high-speed lamination device of the present invention;

[0024] Figure 3 It is a structural schematic diagram of a feeding mechanism of a high-speed lamination device of the present invention;

[0025] Figure 4 It is a top view of a feeding robot of a high-speed lamination device of the present invention;

[0026] Figure 5 It is a structural schematic diagram of a feeding robot of a high-speed lamination device of the present invention;

[0027] Figure 6 It is a schematic diagram of the transfer structure of a high-speed lamination device of the present invention;

[0028] Figure 7 yes Figure 6 A magnified image of

[0029] Figure 8 It is a structural schematic diagram of a stacking moving driver of a high-speed stacking device of the present invention;

[0030] Fig. 9It is a structural schematic diagram of a handling unit of a high-speed lamination device of the present invention;

[0031] Fig.10 It is a structural schematic diagram of a stacking unit of a high-speed stacking device of the present invention;

[0032] Fig.11 It is a structural schematic diagram of a film pressing assembly of a high-speed lamination device of the present invention;

[0033] Fig.12 It is a structural schematic diagram of a first adsorption component of a high-speed lamination device of the present invention;

[0034] Fig.13 is a cross-sectional view of a first adsorption component of a high-speed lamination device of the present invention;

[0035] Fig.14 It is a visual structural schematic diagram of a high-speed lamination device of the present invention. DETAILED DESCRIPTION

[0036] In order to make the purpose, technical scheme and advantages of the present invention clearer, the specific embodiments of the present invention are described in detail below in conjunction with the accompanying drawings. Examples of these preferred embodiments are illustrated in the accompanying drawings. The embodiments of the present invention shown in the accompanying drawings and described according to the accompanying drawings are merely exemplary, and the present invention is not limited to these embodiments.

[0037] It should also be noted that, in order to avoid obscuring the present invention due to unnecessary details, only structures and / or processing steps closely related to the solutions according to the present invention are shown in the accompanying drawings, while other details that are not closely related to the present invention are omitted.

[0038] Also, in the description of the present invention, the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the 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 operate in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance.

[0039] See also Figures 1 to 3 The embodiment of the present invention includes: a high-speed lamination device, which is installed on a fixed frame 1 through a fixed plate. One lamination device can be installed on the fixed frame 1 of the present application, and two lamination devices can be installed on the fixed frame 1 facing each other according to the needs, so that products can be stacked alternately without waiting for material collection time, thereby improving stacking efficiency, shortening production time and ensuring production accuracy.

[0040] The present application, when implemented, includes a stacking mechanism 3, including a stacking device 31 and a deviation correction device 32 disposed on each side of the stacking device 31, wherein the stacking device 31 is used to alternately stack products on the deviation correction devices 32 on both sides;

[0041] Two feeding mechanisms 2 are provided and symmetrically arranged on both sides of the stacking mechanism 3, and are used to transfer the products to the stacking mechanism 3;

[0042] The membrane unwinding mechanism 4 comprises an unwinding assembly for releasing the membrane and a coating assembly for introducing the membrane into the laminating device 31 .

[0043] See also Figure 4-Figure 7 The feeding mechanism 2 includes a feeding robot 21 and a lifting and sucking device 22, a silo 23 and a transfer device 24 which are arranged in parallel and in sequence front and back. The transfer device 24 includes a transfer adsorption platform 241 which moves forward and backward. The lifting and sucking device 22 sucks the product in the silo 23 and lifts it to the transfer station. The transfer adsorption platform 241 extends forward to the bottom of the transfer station. The lifting and sucking device 22 places the product on the transfer adsorption platform. The feeding robot 21 transfers the product on the transfer adsorption platform 241 to the correction device 32.

[0044] The loading robot 21 includes a rotating component 211, a swing arm 212 and a first adsorption component 213. The rotating end of the rotating component 211 is installed with the swing arm 212 through an adjusting component 214. The outer end of the swing arm 212 is installed with the first adsorption component 213 which is tilted with the swing arm 212.

[0045] The included angle between the swing arm 212 and the first adsorption component 213 is in the range of 140-150°.

[0046] The adjusting component 214 includes a mounting end plate 2141 fixed to the upper end surface of the rotating component 211, an adjusting lifting driver 2142 is provided on the vertical plate 2141, an adjusting vertical plate 2143 is fixedly mounted on the driving end of the adjusting lifting driver 2142, the swing arm 212 is fixedly mounted on the upper part of the adjusting mounting plate 2143, a supporting plate 2144 is mounted between the adjusting vertical plate 2143 and the lower end surface of the swing arm 212, a pulling plate 2145 is mounted between the adjusting vertical plate 2143 and the upper end surface of the swing arm 212, and the front end of the pulling plate 2145 is close to the front end of the swing arm 212.

[0047] The lifting and suction device 22 includes a lifting frame 221, on which a grabbing support arm 223 is installed through a lifting drive 222, and the outer end of the grabbing support arm 223 is provided with a grabbing fixing plate 224, on which a plurality of suction members 5 are arranged, and the grabbing support arm 223 is installed with at least one group of blowing units 226, and the blowing port of the blowing unit 226 is aligned with the lower end of the suction member 5.

[0048] See also Figure 8-Figure 14 The correcting device 32 includes a correcting adsorption platform 322, the transfer adsorption platform 241 and the product placement direction on the correcting adsorption platform 322 are vertically arranged, and the adsorption component 5 on the loading robot 21 absorbs the product on the transfer adsorption platform 241 to the correcting adsorption platform 322.

[0049] The stacking device 31 includes a stacking mobile driver 311 and a stacking unit 312 arranged in front and back, and the stacking mobile driver 311 is installed with a diaphragm traction unit 313 and a conveying unit 314 located on both sides of the diaphragm traction unit 313. The stacking unit 312 is located between the two correcting devices 32. The stacking mobile driver 311 drives the two conveying units to transfer the products on the two correcting devices 32 to the stacking unit 312 in turn.

[0050] The deflection correction device 32 includes a deflection correction lifter 321 and a deflection correction horizontal shifter 324 fixedly arranged at the lifting end of the deflection correction lifter 321 , and a deflection correction adsorption platform 322 is installed at the moving end of the deflection correction horizontal shifter 324 .

[0051] The transport unit 314 includes a transport base 3141 and a transport lifting assembly 3142 installed on the transport base 3141 , a transport arm 3143 is installed on the lifting end of the transport lifting assembly 3142 , and a second adsorption assembly 3144 is installed at the front end of the transport arm 3143 .

[0052] The stacking unit 312 includes a stacking frame 3121 and two groups of laminating assemblies 3122 arranged around the stacking frame 3121. A stacking platform 3123 is installed on the upper end of the stacking frame 3121. The two groups of laminating assemblies 3122 are symmetrically arranged along the longitudinal center line of the stacking platform 3123.

[0053] The first adsorption component 213 and the second adsorption component 3144 have the same structure, both including an adsorption plate 6 and a plurality of adsorption members 5. The adsorption plate 6 is provided with a plurality of mounting holes, and the adsorption members 5 are fixedly mounted in the mounting holes, and the lower end edges of the adsorption members 5 extend out of the mounting holes.

[0054] It also includes a first visual fixing frame 7 and a second visual fixing frame 8 , on which a first visual recognition component and a second visual recognition component are respectively installed, and are respectively located above two deviation correcting devices 32 .

[0055] The film pressing assembly 3122 comprises a film pressing stand, on which a film pressing lifting subassembly 31221 and a film pressing horizontal moving subassembly 31222 are installed, and a pressing plate 31223 is installed at the moving end of the film pressing horizontal moving subassembly 31222.

[0056] In the specific implementation of this application, the products that need to be alternately stacked are positive electrode sheets and negative electrode sheets, the loading mechanism for placing positive electrode sheets is the positive electrode sheet loading mechanism, and the correction device and the conveying unit for transporting positive electrode sheets are the positive electrode sheet correction device and the positive electrode sheet conveying unit; the loading mechanism for placing negative electrode sheets is the negative electrode sheet loading mechanism, and the correction device and the conveying unit for transporting negative electrode sheets are the negative electrode sheet correction device and the negative electrode sheet conveying unit. The specific alternate stacking method is as follows:

[0057] The position of the negative electrode film is identified and the defects are judged by the camera on the second visual fixing frame, and a camera fixing component is fixedly set on the side of the camera. The position of the positive electrode film is identified and the defects are judged by the camera on the first visual fixing frame, and a camera fixing component is fixedly set on the side of the camera. After the position is determined, the film is transported by the transport unit.

[0058] In addition, it should be noted that in this specification, "includes", "comprising" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also includes other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, an element defined by the sentence "comprising a ..." does not exclude the existence of other identical elements in the process, method, article or device including the element.

[0059] It should be understood that although this specification is described according to implementation methods, not every implementation method contains only one independent technical solution. This narrative method of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other implementation methods that can be understood by those skilled in the art.

Claims

1. A high-speed lamination device, characterized in that: include, A stacking mechanism (3) comprises a stacking device (31) and a deviation correcting device (32) arranged on both sides of the stacking device (31), wherein the stacking device (31) is used to alternately stack products on the deviation correcting devices (32) on both sides; A feeding mechanism (2), which is provided in number (2) and is symmetrically arranged on both sides of the stacking mechanism (3), and is used to transfer the product to the stacking mechanism (3); The diaphragm unwinding mechanism (4) comprises an unwinding component for releasing the diaphragm and a coating component for introducing the diaphragm into the lamination device (31).

2. A high-speed lamination device according to claim 1, characterized in that: The feeding mechanism (2) comprises a feeding robot (21) and a lifting and sucking device (22), a silo (23) and a transfer device (24) which are arranged in parallel and in sequence front to back. The transfer device (24) comprises a transfer adsorption platform (241) which moves forward and backward. The lifting and sucking device (22) sucks the product in the silo (23) and lifts it to a transfer station. The transfer adsorption platform (241) extends forward to the bottom of the transfer station. The lifting and sucking device (22) places the product on the transfer adsorption platform. The feeding robot (21) transfers the product on the transfer adsorption platform (241) to the deviation correction device (32).

3. A high-speed lamination device according to claim 2, characterized in that: The loading robot (21) comprises a rotating component (211), a swing arm (212) and a first adsorption component (213); the rotating end of the rotating component (211) is mounted with the swing arm (212) via an adjusting component (214); the outer end of the swing arm (212) is mounted with the first adsorption component (213) which is arranged obliquely with respect to the swing arm (212).

4. A high-speed lamination device according to claim 3, characterized in that: The angle between the swing arm (212) and the first adsorption component (213) is in the range of 140-150°.

5. A high-speed lamination device according to claim 3, characterized in that: The adjustment component (214) comprises a mounting end plate (2141) fixed to the upper end surface of the rotating component (211); an adjustment lifting driver (2142) is arranged on the vertical plate (2141); an adjustment vertical plate (2143) is fixedly mounted on the driving end of the adjustment lifting driver (2142); the swing arm (212) is fixedly mounted on the upper part of the adjustment mounting plate (2143); a support plate (2144) is mounted between the adjustment vertical plate (2143) and the lower end surface of the swing arm (212); a pull plate (2145) is mounted between the adjustment vertical plate (2143) and the upper end surface of the swing arm (212); and the front end of the pull plate (2145) is close to the front end of the swing arm (212).

6. A high-speed lamination device according to claim 2, characterized in that: The lifting and sucking device (22) comprises a lifting frame (221), a grabbing support arm (223) is installed on the lifting frame (221) through a lifting driver (222), a grabbing fixing plate (224) is arranged at the outer end of the grabbing support arm (223), a plurality of sucking members (5) are arranged on the grabbing fixing plate (224), and the grabbing support arm (223) is installed with at least one group of blowing units (226), and the blowing port of the blowing unit (226) is aligned with the lower end of the sucking member (5).

7. The high-speed lamination equipment according to claim 1, characterized in that: The deflection correction device (32) comprises a deflection correction stand (321) and a deflection correction adsorption platform (322) arranged at the upper end of the deflection correction stand (321); the product placement direction of the transfer adsorption platform (241) and the deflection correction adsorption platform (322) is vertically arranged; the adsorption component on the loading robot (21) absorbs the product on the transfer adsorption platform (241) to the deflection correction adsorption platform (322).

8. The high-speed lamination equipment according to claim 1, characterized in that: The stacking device (31) comprises a stacking mobile driver (311) and a stacking unit (312) arranged at the front and rear, the stacking mobile driver (311) being provided with a diaphragm traction unit (313) and a conveying unit (314) located on both sides of the diaphragm traction unit (313), the stacking unit (312) being located between the two deviation correcting devices (32), the stacking mobile driver (311) driving the two conveying units to sequentially transfer the products on the two deviation correcting devices (32) to the stacking unit (312).

9. The high-speed lamination equipment according to claim 7, characterized in that: The deflection correction device (32) comprises a deflection correction lifter (321) and a deflection correction horizontal displacer (324) fixedly arranged at the lifting end of the deflection correction lifter (321), and a deflection correction adsorption platform (322) is installed at the movable end of the deflection correction horizontal displacer (324).

10. The high-speed lamination equipment according to claim 8, characterized in that: The transport unit (314) comprises a transport base (3141) and a transport lifting assembly (3142) installed on the transport base (3141), a transport arm (3143) is installed on the lifting end of the transport lifting assembly (3142), and a second adsorption assembly (3144) is installed at the front end of the transport arm (3143).

11. The high-speed lamination equipment according to claim 8, characterized in that: The stacking unit (312) comprises a stacking frame and two groups of laminating assemblies (3122) arranged around the stacking frame, a stacking platform (3123) is installed at the upper end of the stacking frame, and the two groups of laminating assemblies (3122) are symmetrically arranged along the longitudinal center line of the stacking platform (3123).

12. A high-speed lamination device according to any one of claims 3 or 8, characterized in that: The first adsorption component (213) and the second adsorption component (3144) have the same structure, and both include an adsorption plate (6) and a plurality of adsorption members (5). The adsorption plate (6) is provided with a plurality of mounting holes, and the adsorption members (5) are fixedly mounted in the mounting holes, and the lower end edges of the adsorption members (5) extend out of the mounting holes.

13. The high-speed lamination equipment according to claim 1, characterized in that: It also comprises a first visual fixing frame (7) and a second visual fixing frame (8), wherein a first visual recognition component and a second visual recognition component are respectively mounted on the first visual fixing frame (7) and the second visual fixing frame (8), and are respectively located above two deviation correcting devices (32).

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