Reclaimer and battery production system

Abstract

The present application provides a material picking device and a battery production system, which belong to the field of battery technology. The material picking device includes a sheet material placement part, a material picking assembly and a positioning member. The sheet material placement part is used to carry sheet materials stacked along a first direction. The material picking assembly includes a material picking unit and a driving unit, the material picking unit is used to obtain sheet materials, and the driving unit is used to drive the material picking unit to move. The positioning member is connected to the sheet material placement part, the positioning member is arranged along the first direction, and is used to pass through the positioning hole of the sheet material on the sheet material placement part. The positioning member has a stripping part arranged along the first direction, and the stripping part is used to separate the sheet material obtained by the material picking assembly. In this way, the picking and transfer of a single sheet material is realized, which can meet the picking needs of only taking a single sheet material, and improve the quality of picking and the overall production efficiency.

Description

Technical Field

[0001] The present application relates to the field of battery technology, and in particular to a material taking device and a battery production system. Background Art

[0002] Energy conservation and emission reduction are the key to the sustainable development of the automobile industry. Electric vehicles have become an important part of the sustainable development of the automobile industry due to their advantages in energy conservation and environmental protection. For electric vehicles, battery technology is an important factor in their development.

[0003] During the production process of batteries, sheet materials are required, such as Mylar film, which can be used to cover the electrode assembly. When picking up sheet materials, it is easy to pick up multiple sheet materials in one picking operation, resulting in low quality of sheet materials, which is not only difficult to meet the picking requirements, but also affects the efficiency of picking, and thus affects the overall production efficiency. Utility Model Content

[0004] The present application aims to solve at least one of the technical problems in the background technology. To this end, one object of the present application is to provide a material taking device and a battery production system to improve the material taking quality of sheet materials.

[0005] An embodiment of the first aspect of the present application provides a material picking device, including a sheet material placement portion, a material picking assembly, and a positioning member. The sheet material placement portion is used to carry sheet materials stacked along a first direction. The material picking assembly includes a material picking unit and a driving unit, the material picking unit is used to pick up sheet materials, and the driving unit is used to drive the material picking unit to move. The positioning member is connected to the sheet material placement portion, the positioning member is arranged along the first direction, and is used to pass through the positioning hole of the sheet material on the sheet material placement portion. The positioning member has a stripping portion arranged along the first direction, and the stripping portion is used to separate the sheet material picked up by the material picking assembly.

[0006] In the technical solution of the embodiment of the present application, a stripping portion is provided on the positioning member so that the positioning member can not only meet the positioning requirements of the sheet material, but also can realize that when the material picking component carries the sheet material through the stripping portion, the stripping portion can pull the edge of the positioning hole of the sheet material and separate multiple sheet materials that are adhered to each other, thereby realizing the picking and transfer of a single sheet material, which can meet the picking needs of only a single sheet material and improve the quality of picking and the overall production efficiency.

[0007] In some embodiments, the material picking device further includes a material splitting assembly, which includes a column and a material splitting unit. The column is connected to the sheet material placement portion, and the column is arranged adjacent to the sheet material at the placement position of the sheet material placement portion. The material splitting unit is arranged on the column, and the material splitting unit is arranged on the moving path of the sheet material after being picked up by the material picking assembly. The material splitting assembly separates a plurality of sheet materials from the outside of the sheet material to cooperate with the stripping portion to separate a plurality of sheet materials from the inside of the sheet material, further improving the reliability of sheet material separation, thereby improving the quality of material picking.

[0008] In some embodiments, the material separation unit includes a driving member and a material separation member. The material separation member is arranged at one end of the column away from the sheet material placement portion, and the material separation member is used to divide the edge of the sheet material obtained by the material collection unit under the drive of the driving member, so as to fully separate the sheet material, thereby improving the quality of the material collection.

[0009] In some embodiments, the material separation member is rotatably disposed on the column, and the driving member is used to drive the material separation member to rotate. The material separation member realizes the separation of multiple sheet materials in a rotating manner, thereby improving the separation efficiency.

[0010] In some embodiments, the material separation unit further includes a plurality of protrusions disposed at one end of the column away from the sheet material placement portion, the plurality of protrusions are arranged along a first direction, and the protrusions are used to scrape the edge of the sheet material when the sheet material passes through. In cooperation with the stripping portion, the reliability of separating the sheet material is further improved.

[0011] In some embodiments, the material separation unit further comprises a plurality of blowing holes disposed in a portion of the column adjacent to the sheet material placement portion, the openings of the blowing holes facing the sheet materials for blowing air between adjacent sheet materials, so as to increase the gap between two adjacent sheet materials, thereby facilitating the separation of the two adjacent sheet materials.

[0012] In some embodiments, the material separation unit further includes bristles disposed at one end of the column away from the sheet material placement portion, the bristles extending toward the position where the sheet material is placed, and the bristles are used to scrape the edge of the sheet material when the sheet material passes by. In cooperation with the stripping portion, the reliability of sheet material separation is further improved.

[0013] In some embodiments, the bristles include multiple groups of bristles arranged along a first direction, and the lengths of the multiple groups of bristles extending toward the position where the sheet material is placed gradually increase along a direction away from the sheet material placement portion, so that the bristles can fully contact the sheet material, thereby improving the reliability of separating the sheet material.

[0014] In some embodiments, the column is movably disposed on the sheet material placement portion, and the contact amount between the material separation piece, the protruding structure and the bristles on the column and the edge of the sheet material can be adjusted to achieve a better separation effect.

[0015] In some embodiments, the stripping portion is disposed at an end of the positioning member away from the sheet material placement portion, and the roughness of the stripping portion is greater than the roughness of a portion of the positioning member adjacent to the stripping portion, so that the stripping portion can separate a plurality of sheet materials when acting on the edge of the positioning hole.

[0016] In some embodiments, the material taking unit includes a suction cup and a vibrator. The suction cup is used to take the sheet material on the sheet material placement part, and the vibrator is used to vibrate the suction cup, thereby further improving the separation effect of the sheet material.

[0017] In some embodiments, the material taking unit further comprises a mounting plate and a flexible suction rod. The mounting plate is connected to the driving unit, and a plurality of flexible suction rods are provided corresponding to the suction cups, and the suction cups are connected to the mounting plate through the corresponding flexible suction rods. The flexible suction rods reduce the damage of the suction cups to the sheet material when taking the material.

[0018] In some embodiments, the material taking unit further comprises a first sensor, the first sensor is used to determine whether the suction cup is in contact with the sheet material on the sheet material placement part, and the first sensor is connected to a control unit for controlling the activation of the suction cup by signal, so that the suction cup can be activated after being in contact with the sheet material, thereby improving the reliability of adsorption.

[0019] In some embodiments, the material taking device further comprises a second sensor connected to the sheet material placement part. The second sensor is arranged adjacent to the sheet material placement position on the sheet material placement part, and the second sensor is used to obtain the position of the sheet material obtained on the suction cup, and the second sensor is connected to the vibrator signal. Thus, under the vibration of the vibrator, the material separation unit is cooperated to separate multiple sheet materials, thereby improving the reliability of separation.

[0020] An embodiment of the second aspect of the present application provides a battery production system, which includes the material taking device in the above embodiment, and the sheet material obtained by the material taking device is a bottom support sheet wrapping the electrode assembly and / or an insulating film covering the electrode assembly.

[0021] The above description is only an overview of the technical solution of the present application. In order to more clearly understand the technical means of the present application, it can be implemented in accordance with the contents of the specification. In order to make the above and other purposes, features and advantages of the present application more obvious and easy to understand, the specific implementation methods of the present application are listed below. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In the accompanying drawings, unless otherwise specified, the same reference numerals throughout the multiple drawings represent the same or similar parts or elements. These drawings are not necessarily drawn to scale. It should be understood that these drawings only depict some embodiments disclosed in the present application and should not be regarded as limiting the scope of the present application.

[0023] Figure 1 This is a schematic diagram of the overall structure of the material taking device in some embodiments of the present application;

[0024] Figure 2 It is a partial structural schematic diagram of a material taking device in some embodiments of the present application;

[0025] Figure 3 This is a schematic diagram of the structure of the positioning member in some embodiments of the present application;

[0026] Figure 4 This is one of the structural schematic diagrams of the pillars of some embodiments of the present application;

[0027] Figure 5 This is the second structural schematic diagram of the pillars of some embodiments of the present application;

[0028] Figure 6 for Figure 5 Schematic diagram of the cross-sectional structure along the AA direction;

[0029] Figure 7 This is a schematic diagram of the structure of bristles in some embodiments of the present application;

[0030] Figure 8 This is a schematic structural diagram of a material taking unit according to some embodiments of the present application.

[0031] Description of reference numerals:

[0032] 100. Reclaiming device;

[0033] 10. Sheet material placement section;

[0034] 20. Material picking assembly; 21. Material picking unit; 211. Suction cup; 212. Vibrator; 213. Mounting plate; 213a. Avoidance hole; 214. Flexible suction rod; 215. First sensor;

[0035] 30. Positioning piece; 31. Stripping part;

[0036] 40. Material separation components;

[0037] 41, column; 411, airway; 412, second strip hole;

[0038] 42. material distribution unit; 421. driving member; 422. material distribution member; 423. protruding structure; 424. air blowing hole; 425. bristles;

[0039] 50. A second sensor;

[0040] 200. Flake materials;

[0041] F1, first direction;

[0042] B, mounting block; B1, first strip hole. DETAILED DESCRIPTION

[0043] The following embodiments of the technical solution of the present application are described in detail in conjunction with the accompanying drawings. The following embodiments are only used to more clearly illustrate the technical solution of the present application, and are therefore only used as examples, and cannot be used to limit the scope of protection of the present application.

[0044] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by technicians in the technical field to which this application belongs; the terms used herein are only for the purpose of describing specific embodiments and are not intended to limit this application; the terms "including" and "having" in the specification and claims of this application and the above-mentioned figure descriptions and any variations thereof are intended to cover non-exclusive inclusions.

[0045] In the description of the embodiments of the present application, the technical terms "first", "second", etc. are only used to distinguish different objects, and cannot be understood as indicating or implying relative importance or implicitly indicating the number, specific order or primary and secondary relationship of the indicated technical features. In the description of the embodiments of the present application, the meaning of "multiple" is more than two, unless otherwise clearly and specifically defined.

[0046] Reference to "embodiments" herein means that a particular feature, structure, or characteristic described in conjunction with the embodiments may be included in at least one embodiment of the present application. The appearance of the phrase in various locations in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment that is mutually exclusive with other embodiments. It is explicitly and implicitly understood by those skilled in the art that the embodiments described herein may be combined with other embodiments.

[0047] In the description of the embodiments of the present application, the term "and / or" is only a description of the association relationship of the associated objects, indicating that there may be three relationships. For example, A and / or B can represent: A exists alone, A and B exist at the same time, and B exists alone. In addition, the character " / " in this article generally indicates that the associated objects before and after are in an "or" relationship.

[0048] In the description of the embodiments of the present application, the term "multiple" refers to more than two (including two). Similarly, "multiple groups" refers to more than two groups (including two groups), and "multiple pieces" refers to more than two pieces (including two pieces).

[0049] In the description of the embodiments of the present application, the technical terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, which are only for the convenience of describing the embodiments of the present application and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the embodiments of the present application.

[0050] In the description of the embodiments of the present application, unless otherwise clearly specified and limited, technical terms such as "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, and it can be the internal connection of two elements or the interaction relationship between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the embodiments of the present application can be understood according to the specific circumstances.

[0051] At present, judging from the development of the market situation, the application of batteries is becoming more and more extensive. Batteries are not only used in energy storage power systems such as hydropower, thermal power, wind power and solar power stations, but also widely used in electric vehicles such as electric bicycles, electric motorcycles, electric cars, as well as aerospace and other fields. With the continuous expansion of battery application fields, its market demand is also constantly expanding.

[0052] A battery cell refers to the smallest unit that makes up a battery. A battery cell may include a shell and an electrode assembly located inside the shell. The electrode assembly is the component in the battery cell where electrochemical reactions occur. The electrode assembly is mainly formed by winding or stacking positive and negative electrode sheets, and a separator is usually provided between the positive and negative electrode sheets. The parts of the positive and negative electrode sheets with active materials constitute the main body of the electrode assembly, and the parts of the positive and negative electrode sheets without active materials each constitute a lug. The positive and negative lugs may be located together at one end of the main body or at both ends of the main body, respectively. During the charge and discharge process of the battery, the positive and negative active materials react with the electrolyte, and the lugs connect the electrode terminals to form a current loop.

[0053] The battery cell may also include a bottom support sheet and a Mylar film, which may be heat-melted, and then coated on the outside of the electrode assembly, and the housing encapsulates the electrode assembly coated with the bottom support sheet and the Mylar film to form a battery cell. The Mylar film seals and protects the electrode assembly, and the Mylar film can achieve insulation between the electrode assembly and the housing.

[0054] In some cases, take Mylar film as an example. When picking up Mylar film, it is picked up from the top of multiple stacked Mylar films. Since Mylar film is light in weight and thickness, multiple stacked Mylar films may stick to each other due to static electricity, humid air or self-adhesion. When picking up Mylar film, it is easy to pick up multiple sheets at the same time, resulting in poor quality of picked up materials, unable to meet the demand of picking up only a single Mylar film, so it is necessary to pick up the material again, which reduces the efficiency of picking up materials and the overall production efficiency.

[0055] Based on the above considerations, the present application provides a material picking device and a battery production system, wherein the material picking device includes a sheet material placement portion, a material picking assembly and a positioning member. The sheet material placement portion is used to carry sheet materials stacked along a first direction. The material picking assembly includes a material picking unit and a driving unit, the material picking unit is used to obtain sheet materials, and the driving unit is used to drive the material picking unit to move. The positioning member is connected to the sheet material placement portion, the positioning member is arranged along the first direction, and is used to pass through the positioning hole of the sheet material on the sheet material placement portion. The positioning member has a stripping portion arranged along the first direction, and the stripping portion is used to separate the sheet material obtained by the material picking assembly.

[0056] By arranging a stripping part on the positioning piece, the positioning piece can not only meet the positioning demand of the sheet material, but also can realize that when the material picking component carries the sheet material through the stripping part, the stripping part can peel the edge of the positioning hole of the sheet material and separate multiple sheet materials that are stuck to each other, thereby realizing the picking and transfer of a single sheet material, which can meet the picking demand of only a single sheet material, and improve the picking quality and overall production efficiency.

[0057] The material taking device disclosed in the embodiment of the present application can be used for taking Mylar film and bottom support sheet in the battery cell but is not limited to it, and can also be used for taking other film layer materials. In this way, it is helpful to improve the quality of taking sheet materials.

[0058] Combination Figures 1 to 3 As shown, Figure 1 This is a schematic diagram of the overall structure of the material taking device in some embodiments of the present application; Figure 2 It is a partial structural schematic diagram of a material taking device in some embodiments of the present application; Figure 3 This is a schematic diagram of the structure of the positioning member of some embodiments of the present application.

[0059] The embodiment of the present application provides a material picking device 100, including a sheet material placement portion 10, a material picking assembly 20 and a positioning member 30. The sheet material placement portion 10 is used to carry sheet materials 200 stacked along a first direction F1. The material picking assembly 20 includes a material picking unit 21 and a driving unit, the material picking unit 21 is used to pick up the sheet material 200, and the driving unit is used to drive the material picking unit 21 to move. The positioning member 30 is connected to the sheet material placement portion 10, the positioning member 30 is arranged along the first direction F1, and is used to pass through the positioning hole of the sheet material 200 on the sheet material placement portion 10. The positioning member 30 has a stripping portion 31 arranged along the first direction F1, and the stripping portion 31 is used to separate the sheet material 200 picked up by the material picking assembly 20.

[0060] The sheet material placement portion 10 is a component for carrying and storing sheet materials 200. A plurality of sheet materials 200 are placed on the sheet material placement portion 10 in a stacked manner along a first direction F1. The first direction F1 may be a thickness direction of the sheet material 200. In some examples, the sheet material placement portion 10 may be a bottom plate, and the orthographic projection shape of the sheet material 200 on the bottom plate may be a square.

[0061] The material picking assembly 20 is a component for picking up the sheet material 200 and carrying the sheet material 200 for transfer. In some embodiments, when picking up a pile of sheet materials 200 stacked on the bottom plate, the material picking unit 21 can start picking up the sheet material 200 from the top of the pile of sheet materials 200 away from the bottom plate, and then the driving unit drives the material picking unit 21 to move, so that the sheet material 200 picked up by the material picking unit 21 is separated from the rest of the sheet materials on the bottom plate, so as to realize the transfer of the sheet material 200, and this cycle is repeated to realize the picking up of the sheet material 200 layer by layer.

[0062] In some embodiments, the material picking method of the material picking unit 21 can be negative pressure adsorption, and the driving unit can be configured as a robotic arm.

[0063] The positioning member 30 is a component for positioning the sheet material 200 on the sheet material placement part 10, so that the sheet material 200 can be accurately located at the preset position on the sheet material placement part 10, so as to facilitate the material taking component 20 to take the material. The positioning member 30 is positioned in such a way that the sheet material 200 is provided with a positioning hole. When the sheet material 200 is stacked, the positioning hole is aligned with the positioning member 30, and the positioning member 30 passes through the positioning hole. A plurality of positioning members 30 can be arranged at intervals, so that the movement of the sheet material 200 relative to the sheet material placement part 10 can be reduced to improve the accuracy of positioning. When the driving unit drives the material taking unit 21 to move to carry the sheet material 200 for transfer, the moving path of the sheet material 200 is to move relative to the positioning member 30 in a direction away from the sheet material placement part 10 until the positioning hole of the sheet material 200 completely leaves the positioning member 30. In some examples, the positioning member 30 may be a positioning pin, and one end of the positioning pin facing away from the sheet material placement portion 10 is provided with a chamfer to facilitate the positioning pin to pass through the positioning hole.

[0064] The stripping portion 31 is a portion on the positioning member 30 for separating two adjacent layers of sheet materials 200. When the upper layer of sheet materials 200 is obtained by the material taking component 20, due to the adhesion between the sheet materials 200, the lower layer of sheet materials 200 adjacent thereto is easily transferred together, and multiple sheet materials 200 move relative to the positioning member 30 in a direction away from the sheet material placement portion 10. When moving to the stripping portion 31, the stripping portion 31 can contact the portion of the sheet material 200 located at the positioning hole, thereby shifting the edge of the positioning hole, and the upper layer of sheet material 200 can continue to remain on the material taking unit 21, while the lower layer of sheet material 200 is separated from the upper layer of sheet material 200 under the shifting of the stripping portion 31, so as to separate the sheet materials 200 that are adhered to each other, and then realize the taking and transfer of a single sheet material 200.

[0065] The stripping portion 31 is disposed along the first direction F1 , that is, the stripping portion 31 has a certain length along the first direction F1 on the positioning member 30 , so that the plurality of sheet materials 200 can be fully separated during the movement.

[0066] In some embodiments, the stripping portion 31 can achieve stripping by increasing the roughness of the surface of the stripping portion 31 so that when the sheet material 200 moves relative to the stripping portion 31 , the rougher stripping portion 31 can more effectively peel and separate the adhered sheet materials 200 .

[0067] By arranging the stripping portion 31 on the positioning member, the positioning member 30 can not only meet the positioning requirement of the sheet material 200, but also can realize that when the picking component 20 carries the sheet material 200 through the stripping portion 31, the stripping portion 31 can draw the edge of the positioning hole of the sheet material 200 and separate multiple sheet materials 200 that are adhered to each other, thereby realizing the picking and transfer of a single sheet material 200, which can meet the picking demand of only a single sheet material 200, and improve the picking quality and overall production efficiency.

[0068] Combination Figure 1 and Figure 2 As shown, according to some embodiments of the present application, the material picking device 100 further includes a material splitting assembly 40, and the material splitting assembly 40 includes a column 41 and a material splitting unit 42. The column 41 is connected to the sheet material placement portion 10, and the column 41 is arranged adjacent to the sheet material 200 at the placement position of the sheet material placement portion 10. The material splitting unit 42 is arranged on the column 41, and the material splitting unit 42 is arranged on the moving path of the sheet material 200 after being picked up by the material picking assembly 20.

[0069] The material separation component 40 is a component used to separate a plurality of sheet materials 200 when the material taking component 20 takes materials.

[0070] In the material dividing assembly 40, the column 41 is a component for supporting the material dividing unit 42, and the column 41 is arranged along the first direction F1. The column 41 is arranged adjacent to the sheet material 200 at the placement position of the sheet material placement part 10, so that the column 41 is close to the edge of the sheet material 200, and thus, the material dividing unit 42 arranged on the column 41 is also close to the edge of the sheet material 200, so that the material dividing unit 42 can act on the edge of the sheet material 200, thereby realizing the material dividing of multiple sheet materials 200. At the same time, since the column 41 is close to the edge of the sheet material 200, the column 41 can also position the edge of the sheet material 200, so as to cooperate with the positioning member 30 to position the sheet material 200.

[0071] In some embodiments, a plurality of pillars 41 are provided, and the plurality of pillars 41 are arranged at intervals along the circumference of the position where the sheet material 200 is placed on the sheet material placement portion 10 .

[0072] The moving path of the sheet material 200 is to move relative to the positioning member 30 in a direction away from the sheet material placement portion 10, that is, to move along the extending direction of the positioning member 30 and the column 41. During the movement, the stripping portion 31 can act on the edge of the positioning hole of the sheet material 200, and the material separation unit 42 can act on the edge of the sheet material 200. The positioning hole is located on the inner side of the sheet material 200 relative to the edge of the sheet material 200, and the edge of the sheet material 200 is located on the outer side of the sheet material 200 relative to the positioning hole. Accordingly, the stripping portion 31 acts on the inner side of the sheet material 200 to achieve material separation, and the material separation unit 42 acts on the outer side of the sheet material 200 to achieve material separation. That is, under the cooperation of the stripping portion 31 and the material separation unit 42, multiple sheet materials 200 can be separated from the inner and outer sides of the sheet material 200 at the same time, thereby improving the reliability of separation.

[0073] By providing the material separation component 40 to separate multiple sheet materials 200 from the outside of the sheet material 200, and cooperating with the stripping part 31 to separate multiple sheet materials 200 from the inside of the sheet material 200, the reliability of separating the sheet materials 200 is further improved, thereby improving the quality of material collection.

[0074] Combination Figure 1 and Figure 2 As shown, according to some embodiments of the present application, the material dividing unit 42 includes a driving member 421 and a material dividing member 422. The material dividing member 422 is disposed at one end of the column 41 away from the sheet material placement portion 10, and the material dividing member 422 is used to divide the edge of the sheet material 200 obtained by the material taking unit 21 under the drive of the driving member 421.

[0075] The material dividing member 422 is a component that can move relative to the column 41 under the drive of the driving member 421 to actively divide the edge of the sheet material 200. In some examples, the material dividing member 422 can move relative to the column 41 in a linear manner or in a rotating manner.

[0076] The stripping section 31 separates the multiple sheet materials 200 in the following manner: the material taking component 20 carries the sheet materials 200 and moves relative to the stripping section 31, and the stripping section 31 separates the multiple sheet materials 200 in a passive stripping manner. Compared with the stripping section 31 separating the multiple sheet materials 200, the material separation piece 422 moves relative to the edge of the sheet material 200 through its own active action, thereby separating the multiple sheet materials 200 in an active stripping manner. This active stripping manner does not completely rely on the relative movement of the sheet material 200 carried by the material taking component 20 relative to the material separation piece 422.

[0077] The material dividing piece 422 is disposed at one end of the column 41 away from the sheet material placement part 10 , and there is a certain distance between the material dividing piece 422 and the sheet material placement part 10 , so that there is enough space between the sheet material placement part 10 and the material dividing piece 422 to store a certain amount of sheet materials.

[0078] In some embodiments, the material dividing piece 422 may be configured as a brush, which can reduce damage to the edge of the sheet material 200 caused by the material dividing piece 422 while achieving the function of dividing the edge of the sheet material 200 .

[0079] The material separation piece 422 is provided to realize separation of a plurality of sheet materials 200 in an active material stripping manner, and in cooperation with the material stripping portion 31 , the sheet materials 200 can be fully separated, thereby improving the quality of material removal.

[0080] Combination Figure 1 and Figure 2 As shown, according to some embodiments of the present application, the material dividing member 422 is rotatably disposed on the column 41 , and the driving member 421 is used to drive the material dividing member 422 to rotate.

[0081] The material separation piece 422 is rotatably connected to the column 41 , and the material separation piece 422 moves relative to the column 41 in a rotational manner, thereby realizing separation of a plurality of sheet materials 200 by a rotational stripping manner, thereby improving separation efficiency.

[0082] In some embodiments, the material dividing member 422 is configured as a brush, and the driving member 421 is configured as a motor. When the material picking component 20 carries the sheet material 200 and moves to the brush, the motor is turned on to drive the brush to rotate, thereby allocating the sheet material 200 toward the sheet material placement part 10. The sheet material 200 connected to the material picking unit 21 can continue to remain on the material picking unit 21, while the remaining sheet materials 200 are separated under the allocation of the brush and can fall to the sheet material placement part 10 under the action of gravity, thereby achieving the goal of taking only a single sheet material.

[0083] In other embodiments, a plurality of columns 41 are provided, and material dividing pieces 422 may be provided on two columns 41 symmetrically distributed relative to the sheet material placement portion 10 , thereby allowing the sheet material 200 to be subjected to uniform force.

[0084] By providing a material separation piece 422 rotatably connected to the column 41 , the material separation piece 422 can separate a plurality of sheet materials 200 in a rotating manner, thereby improving separation efficiency.

[0085] Combination Figure 2 and Figure 4 As shown, Figure 4This is one of the structural schematic diagrams of the pillars of some embodiments of the present application. According to some embodiments of the present application, the material dividing unit 42 further includes a plurality of protrusion structures 423 disposed at one end of the pillar 41 away from the sheet material placement portion 10, the plurality of protrusion structures 423 are arranged along the first direction F1, and the protrusion structures 423 are used to divide the edge of the sheet material 200 when the sheet material 200 passes through.

[0086] The protruding structure 423 is a structure protruding from the surface of the column 41 facing the sheet material placement part 10. The sheet material 200 is carried by the material taking component 20 and moves relative to the column 41. When moving to the protruding structure 423, the protruding structure 423 contacts the edge of the sheet material 200, and the protruding structure 423 realizes the separation of multiple sheet materials 200 in a passive manner. The multiple protruding structures 423 are arranged along the first direction F1, and the sheet materials 200 are sequentially shifted by the multiple protruding structures 423, which improves the reliability of separation.

[0087] In some embodiments, the protrusion structure 423 may be configured as a tooth-like structure.

[0088] By providing the protruding structure 423 to passively slide the edge of the sheet material 200 , in cooperation with the stripping portion 31 , the reliability of separating the sheet material 200 is further improved.

[0089] Combination Figure 2 , Figure 5 and Figure 6 As shown, Figure 5 This is the second structural diagram of the pillars of some embodiments of the present application. Figure 6 for Figure 5 According to some embodiments of the present application, the material dividing unit 42 further includes a plurality of blowing holes 424 disposed in a portion of the column 41 adjacent to the sheet material placement portion 10, and the openings of the blowing holes 424 face the sheet materials 200 for blowing air between adjacent sheet materials 200.

[0090] Air is blown toward the space between the adjacent sheet materials 200 through the blowing holes 424, so that the gas can enter between the two adjacent sheet materials 200 from the edge of the sheet materials 200, thereby increasing the gap between the two adjacent sheet materials 200, and to a certain extent, the two adjacent sheet materials 200 can be separated. The blowing holes 424 are arranged at a part of the column 41 adjacent to the sheet material placement part 10. It can be understood that the arrangement position of the blowing holes 424 on the column 41 is closer to the sheet material placement part 10 relative to the arrangement position of the material separation piece 422 and the protruding structure 423, that is, in the process of the material taking component 20 carrying the sheet material 200 to move, the blowing effect of the blowing holes 424 can be used to increase the gap between the two adjacent sheet materials 200, so as to facilitate the subsequent separation of the sheet material 200 by the material separation piece 422 and the protruding structure 423.

[0091] In some embodiments, a plurality of blowing holes 424 are provided, and the plurality of blowing holes 424 are arranged in sequence along the first direction F1. An air duct 411 is provided in the column 41, and the air duct 411 is respectively connected to the plurality of blowing holes 424, and the air duct 411 is connected to the air supply device through a pipe joint.

[0092] By providing the blowing holes 424 to blow air toward the space between the adjacent sheet materials 200 , the gap between the two adjacent sheet materials 200 can be increased, so as to facilitate the separation of the two adjacent sheet materials 200 .

[0093] Combination Figure 1 , Figure 2 and Figure 7 As shown, Figure 7 Schematic diagram of the structure of the bristles of some embodiments of the present application. According to some embodiments of the present application, the material dividing unit 42 further includes bristles 425 disposed at one end of the column 41 away from the sheet material placement portion 10, the bristles 425 extending toward the position where the sheet material 200 is placed, and the bristles 425 are used to divide the edge of the sheet material 200 when the sheet material 200 passes by.

[0094] The bristles 425 separate the sheet materials 200 in a similar manner to the protrusion structure 423. The material taking component 20 carries the sheet materials 200 and moves relative to the column 41. When the bristles 425 move to the bristles 425, the bristles 425 contact the edge of the sheet materials 200, and the bristles 425 produce adaptive deformation, so that the bristles 425 separate multiple sheet materials 200 in a passive way. At the same time, the bristles 425 are relatively soft, and the damage to the sheet materials 200 can be minimized when the edge of the sheet materials 200 is slid.

[0095] In some embodiments, along the first direction F1, the arrangement positions of the bristles 425 and the protrusion structure 423 on the column 41 at least partially overlap, so that the bristles 425 and the protrusion structure 423 can simultaneously separate multiple sheet materials in a passive sliding manner, further improving the reliability of separation.

[0096] By providing the bristles 425 to passively peel the edge of the sheet material 200 , in cooperation with the stripping portion 31 , the reliability of separating the sheet material 200 is further improved.

[0097] Combination Figure 1 , Figure 2 and Figure 7 As shown, according to some embodiments of the present application, the bristles 425 include multiple groups of bristles arranged along the first direction F1, and along the direction away from the sheet material placement portion 10, the lengths of the multiple groups of bristles extending toward the position where the sheet material 200 is placed gradually increase.

[0098] The bristles 425 include multiple groups of bristles arranged along the first direction F1, and the multiple groups of bristles cover a separation interval along the first direction F1. When the sheet material 200 moves in the separation interval, the contact time between the sheet material 200 and the bristles 425 is increased to achieve full separation of multiple sheet materials 200.

[0099] Along the direction away from the sheet material placement portion 10, that is, the direction in which the material picking component 20 moves with the sheet material 200, along this direction, the length of the multiple groups of bristles extending toward the position where the sheet material 200 is placed gradually increases. In the process of the sheet material 200 moving, the contact length between the bristles 425 and the sheet material 200 gradually increases. Correspondingly, the force of the bristles 425 on the sheet material 200 also gradually increases, so that the multiple sheet materials 200 can be fully separated in the separation interval.

[0100] In some embodiments, Figure 7 As shown, multiple groups of bristles are installed on the mounting block B, and a first strip hole B1 is provided on the mounting block B. The first strip hole B1 is extended in a direction perpendicular to the first direction F1. The mounting block B is connected to the column through the first strip hole B1. The relative position between the mounting block B and the column 41 is adjusted through the first strip hole B1, so that the contact length between the multiple groups of bristles and the sheet material 200 is adjusted to an appropriate range, thereby reducing the damage of the bristles to the sheet material while satisfying the separation of multiple sheet materials 200.

[0101] By providing multiple groups of bristles with gradually varying extension lengths, the contact length between the bristles 425 and the sheet material 200 gradually increases during the movement of the sheet material 200, so that the bristles 425 and the sheet material 200 can fully contact each other, thereby improving the reliability of separation of the sheet material 200.

[0102] Combination Figure 1 , Figure 2 and Figure 4 As shown, according to some embodiments of the present application, the pillar 41 is movably disposed on the sheet material placement portion 10 .

[0103] In some embodiments, a second strip hole 412 is provided at one end of the column 41 facing the sheet material placement portion 10, and the second strip hole 412 extends in a direction perpendicular to the first direction F1. The column 41 is connected to the sheet material placement portion 10 through the second strip hole 412. The column 41 can be moved toward or away from the sheet material placement portion 10 through the second strip hole 412 to adjust the relative position between the column 41 and the sheet material placement portion 10, thereby adjusting the relative distance between the dividing piece 422, the protruding structure 423 and the bristles 425 on the column 41 and the sheet material 200, and appropriately reducing the distance between the column 41 and the sheet material placement portion 10. When the sheet material 200 moves to the dividing piece 422, the protruding structure 423 and the bristles 425, the contact amount between the dividing piece 422, the protruding structure 423 and the bristles 425 and the edge of the sheet material 200 can be increased to achieve a better separation effect.

[0104] Through the movable connection between the column 41 and the sheet material placement portion 10, the contact amount between the material separation piece 422, the protruding structure 423 and the bristles 425 on the column 41 and the edge of the sheet material 200 can be adjusted to achieve a better separation effect.

[0105] Combination Figure 2 and Figure 3 As shown, according to some embodiments of the present application, the stripping portion 31 is disposed at an end of the positioning member 30 away from the sheet material placement portion 10 , and the roughness of the stripping portion 31 is greater than the roughness of a portion of the positioning member 30 adjacent to the stripping portion 31 .

[0106] When the material taking component 20 carries the sheet material 200 and moves to the stripping portion 31, the outer surface of the stripping portion 31 can scratch the edge of the positioning hole due to the large roughness of the stripping portion 31, so as to achieve the effect of separating the multiple sheet materials 200. The roughness of the portion adjacent to the stripping portion 31 is small, that is, the roughness of the portion of the positioning member 30 close to the sheet material placement portion 10 is small, thereby reducing the wear of the multiple stacked sheet materials 200 by this portion.

[0107] In some embodiments, the stripping portion 31 may be constructed by performing sandblasting on one end of the positioning member 30 that is away from the sheet material placement portion 10 to increase the roughness of the portion.

[0108] By increasing the roughness of the stripping portion 31 , the stripping portion 31 can separate a plurality of sheet materials 200 when acting on the edge of the positioning hole.

[0109] Combination Figure 1 and Figure 8 As shown, Figure 8 Schematic diagram of the structure of the material taking unit of some embodiments of the present application. According to some embodiments of the present application, the material taking unit 21 includes a suction cup 211 and a vibrator 212. The suction cup 211 is used to take the sheet material 200 on the sheet material placement part 10, and the vibrator 212 is used to make the suction cup 211 vibrate.

[0110] The suction cup 211 is a component for using negative pressure to absorb the sheet material 200. The suction cup 211 can be connected to the suction fan. When the suction fan is turned on, negative pressure is generated at the suction cup 211 to absorb the sheet material 200. When the suction fan is turned off, the suction cup 211 returns to normal pressure, thereby separating from the sheet material 200. Using negative pressure to absorb the sheet material 200 not only facilitates the picking up and releasing of the sheet material 200, but also reduces damage to the sheet material 200.

[0111] The vibrator 212 is a component used to drive the suction cup 211 to vibrate at a certain frequency. When the vibrator 212 is turned on, the suction cup 211 and the sheet material 200 on the suction cup 211 vibrate together, and the vibration can separate the adhered sheet material 200 to a certain extent. Further, the vibrator 212 can also be turned on when the sheet material 200 moves to the material separation piece 422, the protruding structure 423 or the bristles 425. Under the vibration, the sheet material 200 and the material separation piece 422, the protruding structure 423 and the bristles 425 produce reciprocating relative movement, so that the material separation piece 422, the protruding structure 423 and the bristles 425 can repeatedly draw the edge of the sheet material 200, so as to facilitate the separation of multiple sheet materials 200.

[0112] The vibrator 212 is provided to drive the suction cup 211 to vibrate, thereby further improving the separation effect of the sheet material 200.

[0113] Combination Figure 1 and Figure 8 As shown, according to some embodiments of the present application, the material taking unit 21 further includes a mounting plate 213 and a flexible suction rod 214. The mounting plate 213 is connected to the driving unit, and a plurality of flexible suction rods 214 are provided corresponding to the suction cups 211, and the suction cups 211 are connected to the mounting plate 213 through the corresponding flexible suction rods 214.

[0114] The mounting plate 213 is connected to the driving unit, and the driving unit drives the suction cup 211 fixed on the mounting plate 213 to move through the mounting plate 213, so that the suction cup 211 moves with the sheet material 200. The vibrator 212 can be fixed on the mounting plate 213, and the vibrator 212 drives the mounting plate 213 to vibrate, thereby driving the suction cup 211 to vibrate.

[0115] In some embodiments, the mounting plate 213 is further provided with an avoidance hole 213 a for the positioning member 30 to pass through, so that the mounting plate 213 can be as close as possible to the stacked sheet material 200 , thereby facilitating the suction cup 211 to absorb the sheet material 200 .

[0116] A plurality of suction cups 211 are provided, and the plurality of suction cups 211 correspond to a plurality of positions of the sheet material 200 . The plurality of suction cups 211 simultaneously adsorb the sheet material 200 , so that the sheet material 200 is subjected to uniform force, so as to maintain a flat state as much as possible, thereby facilitating the separation of the sheet material 200 .

[0117] The suction cup 211 is connected to the mounting plate 213 via the flexible suction rod 214. When the suction cup 211 moves toward and contacts the sheet material 200, the flexible suction rod 214 can act as a buffer to reduce damage to the sheet material 200 caused by the suction cup 211. In some examples, the suction cup 211 is connected to a suction fan via the flexible suction rod 214.

[0118] By providing the flexible suction rod 214, the damage of the suction cup 211 to the sheet material 200 when taking the material is reduced.

[0119] like Figure 8 As shown, according to some embodiments of the present application, the material picking unit 21 further includes a first sensor 215, which is used to determine whether the suction cup 211 is in contact with the sheet material 200 on the sheet material placement portion 10, and the first sensor 215 is connected to a control unit signal that controls the activation of the suction cup 211.

[0120] When the suction cup 211 moves toward the sheet material 200, when the first sensor 215 detects that the suction cup 211 is in contact with the sheet material 200, the control unit activates the suction cup 211, that is, generates negative pressure at the suction cup 211 to adsorb the sheet material 200, so as to improve the reliability of adsorption. The control unit may be a controller for controlling a suction fan connected to the suction cup 211.

[0121] In some embodiments, the first sensor 215 can be a contact sensor, and the position of the detection end of the first sensor 215 is roughly flush with the position of the suction cup 211, so that when the suction cup 211 contacts the sheet material 200, the detection end of the first sensor 215 can also contact the sheet material 200, thereby confirming that the suction cup 211 contacts the sheet material 200.

[0122] By providing the first sensor 215 , the suction cup 211 can be activated after being in contact with the sheet material 200 , thereby improving the reliability of adsorption.

[0123] Combination Figure 1 and Figure 2 As shown, according to some embodiments of the present application, the material taking device 100 further includes a second sensor 50 connected to the sheet material placement part 10. The second sensor 50 is disposed adjacent to the sheet material 200 at the placement position of the sheet material placement part 10, and the second sensor 50 is used to obtain the position of the sheet material 200 obtained on the suction cup 211, and the second sensor 50 is connected to the vibrator 212 signal.

[0124] In some embodiments, the bristles 425 include multiple groups of bristles arranged along the first direction F1, and the multiple groups of bristles cover a separation interval along the first direction F1. When the second sensor 50 detects that the suction cup 211 carries the sheet material 200 to the separation interval, the vibrator 212 is turned on. Under the vibration, the sheet material 200 on the suction cup 211 and the bristles 425 produce a reciprocating relative movement, so that the bristles 425 can repeatedly slide the edge of the sheet material 200. Under the joint action of the vibration and the bristles 425, the separation of multiple sheet materials is facilitated.

[0125] In other embodiments, the second sensor 50 may be a photoelectric sensor, and the second sensor 50 is arranged approximately flush with the bristles 425 so that the second sensor 50 can accurately detect the sheet material 200 moving to the position of the bristles 425, thereby turning on the vibrator in time.

[0126] The second sensor 50 is provided to detect the position of the sheet material 200 , so that the vibrator 212 is turned on when the sheet material 200 moves to a suitable position. Under the vibration of the vibrator 212 , the separating unit 42 is cooperated to separate the plurality of sheet materials 200 , thereby improving the reliability of separation.

[0127] An embodiment of the second aspect of the present application provides a battery production system, including a material taking device 100 of any of the above embodiments, wherein the sheet material 200 taken by the material taking device 100 is a bottom support sheet wrapping an electrode assembly and / or an insulating film covering the electrode assembly.

[0128] The battery device production system in this embodiment can have all the beneficial effects of the above-mentioned material removal device 100, which will not be described in detail here.

[0129] Combine the following Figures 1 to 8 The embodiments of the present application are described in further detail.

[0130] The material taking device 100 includes a sheet material placement portion 10 , a material taking component 20 , a positioning member 30 , a material dividing component 40 and a second sensor 50 .

[0131] The sheet material placement portion 10 is used to carry the sheet materials 200 stacked along the first direction F1.

[0132] The material picking assembly 20 includes a material picking unit 21 and a driving unit. The material picking unit 21 includes a suction cup 211, a vibrator 212, a mounting plate 213, a flexible suction rod 214 and a contact sensor. A plurality of suction cups 211 and flexible suction rods 214 are provided in a one-to-one correspondence. The suction cup 211 is connected to the mounting plate 213 through the corresponding flexible suction rod 214. The vibrator 212 and the contact sensor are fixed to the mounting plate 213. The mounting plate 213 is connected to the driving unit.

[0133] The positioning member 30 is connected to the sheet material placement portion 10, and is arranged along the first direction F1, and is used to pass through the positioning hole of the sheet material 200 on the sheet material placement portion 10. The positioning member 30 has a stripping portion 31 arranged along the first direction F1, and the surface of the stripping portion 31 is sandblasted to increase the surface roughness of the stripping portion 31. The stripping portion 31 is used to separate the sheet material 200 obtained by the material taking component 20.

[0134] The material dividing assembly 40 includes a column 41 and a material dividing unit 42, and the column is connected to the sheet material placement part 10. The material dividing unit includes a driving member 421, a material dividing member 422, a protruding structure 423, an air blowing hole 424 and a brush 425. The material dividing member 422 is a rotating brush, which is rotatably connected to the end of the column 41 away from the sheet material placement part 10, and the driving member 421 drives the rotating brush to rotate to draw the edge of the sheet material 200. The protruding structure 423 is provided on the surface of the column 41 facing the sheet material placement part 10, and is used to draw the edge of the sheet material 200. A plurality of air blowing holes 424 are provided, which are located in a part of the column 41 adjacent to the sheet material placement part 10, and are used to blow air toward the sheet material 200. The bristles 425 include multiple groups of bristles arranged along the first direction F1 . Along the direction away from the sheet material placement portion 10 , the lengths of the multiple groups of bristles extending toward the position where the sheet material 200 is placed gradually increase. The bristles 425 are used to draw the edge of the sheet material 200 .

[0135] The second sensor 50 is a photoelectric sensor. When the photoelectric sensor detects that the sheet material 200 sucked by the suction cup 211 moves to the bristles 425, the vibrator 212 is turned on so that the bristles 425 repeatedly stroke the edge of the sheet material 200 while vibrating.

[0136] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit them; although the present application has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein by equivalents; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present application, and they should all be included in the scope of the claims and specification of the present application. In particular, as long as there is no structural conflict, the various technical features mentioned in the various embodiments can be combined in any way. The present application is not limited to the specific embodiments disclosed herein, but includes all technical solutions that fall within the scope of the claims.

Claims

1. A material taking device (100), characterized in that: include: A sheet material placement portion (10), the sheet material placement portion (10) being used to carry sheet materials (200) stacked along a first direction (F1); A material taking component (20), comprising a material taking unit (21) and a driving unit, wherein the material taking unit (21) is used to take the sheet material (200), and the driving unit is used to drive the material taking unit (21) to move; and A positioning member (30) connected to the sheet material placement portion (10), the positioning member (30) being arranged along the first direction (F1) and being used to pass through a positioning hole of the sheet material (200) located on the sheet material placement portion (10); the positioning member (30) having a stripping portion (31) arranged along the first direction (F1), the stripping portion (31) being used to separate the sheet material (200) obtained by the material taking component (20).

2. The material taking device (100) according to claim 1, characterized in that: The material taking device (100) further comprises: a material dividing component (40); the material dividing component (40) comprises: a column (41) connected to the sheet material placement portion (10), the column (41) being arranged adjacent to the sheet material (200) at a placement position of the sheet material placement portion (10); and A material dividing unit (42) is arranged on the upright column (41), and the material dividing unit (42) is arranged on a moving path after the sheet material (200) is taken by the material taking component (20).

3. The material taking device (100) according to claim 2, characterized in that: The material distribution unit (42) comprises: A driving member (421); and The material dividing member (422) is arranged at one end of the column (41) away from the sheet material placement portion (10), and the material dividing member (422) is used to divide the edge of the sheet material (200) obtained by the material taking unit (21) under the drive of the driving member (421).

4. The material taking device (100) according to claim 3, characterized in that: The material dividing member (422) is rotatably arranged on the column (41), and the driving member (421) is used to drive the material dividing member (422) to rotate.

5. The material taking device (100) according to claim 2, characterized in that: The material dividing unit (42) further comprises a plurality of protruding structures (423) arranged at one end of the column (41) away from the sheet material placement portion (10), wherein the plurality of protruding structures (423) are arranged along the first direction (F1); the protruding structures (423) are used to divide the edge of the sheet material (200) when the sheet material (200) passes by.

6. The material taking device (100) according to claim 2, characterized in that: The material distribution unit (42) further comprises a plurality of air blowing holes (424) arranged in a portion of the column (41) adjacent to the sheet material placement portion (10); the openings of the air blowing holes (424) face the sheet materials (200) so as to be used for blowing air between adjacent sheet materials (200).

7. The material taking device (100) according to claim 2, characterized in that: The material dividing unit (42) further comprises a brush (425) arranged at one end of the column away from the sheet material placement portion (10), the brush (425) extending towards the position where the sheet material (200) is placed, and used to divide the edge of the sheet material (200) when the sheet material (200) passes by.

8. The material taking device (100) according to claim 7, characterized in that: The bristles (425) include a plurality of groups of bristles arranged along the first direction (F1), and along a direction away from the sheet material placement portion (10), the lengths of the plurality of groups of bristles extending toward the position where the sheet material (200) is placed gradually increase.

9. The material taking device (100) according to claim 2, characterized in that: The upright column (41) is movably arranged on the sheet material placement portion (10).

10. The material taking device (100) according to claim 1, characterized in that: The stripping portion (31) is arranged at an end of the positioning member (30) away from the sheet material placement portion (10), and the roughness of the stripping portion (31) is greater than the roughness of a portion of the positioning member (30) adjacent to the stripping portion (31).

11. The material taking device (100) according to any one of claims 1 to 10, characterized in that: The material taking unit (21) comprises: a suction cup (211) for acquiring the sheet material (200) on the sheet material placement portion (10); and The vibrator (212) is used to cause the suction cup (211) to vibrate.

12. The material taking device (100) according to claim 11, characterized in that: The material taking unit (21) further comprises: A mounting plate (213) connected to the drive unit; and A flexible suction rod (214), wherein a plurality of the flexible suction rods (214) are provided in a one-to-one correspondence with the suction cups (211), and the suction cups (211) are connected to the mounting plate (213) via the corresponding flexible suction rods (214).

13. The material taking device (100) according to claim 11, characterized in that: The material picking unit (21) further comprises a first sensor (215); the first sensor (215) is used to determine whether the suction cup (211) is in contact with the sheet material (200) on the sheet material placement portion (10); the first sensor (215) is signal-connected to a control unit that controls activation of the suction cup (211).

14. The material taking device (100) according to claim 11, characterized in that: The material taking device (100) further comprises a second sensor (50) connected to the sheet material placement portion (10); The second sensor (50) is arranged adjacent to the placement position of the sheet material (200) on the sheet material placement portion (10), the second sensor (50) is used to obtain the position of the sheet material (200) obtained on the suction cup (211), and the second sensor (50) is connected to the vibrator (212) by signal.

15. A battery production system, characterized in that: It comprises a material taking device (100) as claimed in any one of claims 1 to 14, wherein the sheet material (200) taken by the material taking device (100) is a bottom support sheet covering the electrode assembly and / or an insulating film covering the electrode assembly.

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