Pole piece adsorption device and battery production line

Abstract

The utility model discloses a pole piece adsorption device and a battery production line, and relates to the technical field of battery production equipment.The pole piece adsorption device comprises a suction cup assembly, an air pressure supply assembly and a limiting plate; the suction cup assembly comprises a suction cup and a mounting plate, the suction cup is provided with a plurality of adsorption holes distributed at intervals, the mounting plate is arranged above the suction cup and is provided with a pole piece placing groove, and the pole piece placing groove is communicated with at least one adsorption hole; the air pressure supply assembly is configured to provide negative pressure for the adsorption holes; the limiting plate is arranged on the mounting plate in a covering manner and covers the pole piece placing groove, and the limiting plate is configured to abut against the pole piece in the pole piece placing groove. According to the invention, the curled pole piece can be smoothly adsorbed, so that the assembly precision and the assembly survival rate of the battery are improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of battery production equipment, in particular to an electrode sheet adsorption device and a battery production line. BACKGROUND

[0002] In the production process of button batteries, the cold-pressed electrode sheet is usually dried and placed on the tray station of a button battery assembly machine, and then the electrode sheet on the tray is sent to the assembly station by the material taking mechanism of the button battery assembly machine for assembly. However, in the assembly process of the battery assembly machine in the related art, it is difficult to lock the center of the electrode sheet for material taking positioning due to the curling of the electrode sheet, which affects the production efficiency and assembly survival rate of the battery. CONTENT OF THE UTILITY MODEL

[0003] In view of the above problems, the present application provides an electrode sheet adsorption device and a battery production line, which aims to flatten and adsorb the curled electrode sheet to improve the assembly precision and assembly survival rate of the battery.

[0004] The present application provides an electrode sheet adsorption device, which comprises a suction cup assembly, a gas pressure supply assembly and a limiting plate. The suction cup assembly comprises a suction cup and a mounting plate, the suction cup is provided with a plurality of suction holes distributed at intervals, the mounting plate is arranged above the suction cup and is provided with an electrode sheet placing groove, the electrode sheet placing groove is in communication with at least one suction hole, the gas pressure supply assembly is configured to provide negative pressure to the suction hole, and the limiting plate is arranged on the mounting plate and covers the electrode sheet placing groove, and the limiting plate is configured to abut against the electrode sheet in the electrode sheet placing groove.

[0005] In the technical scheme of the present application, an electrode sheet adsorption device is provided, the electrode sheet is placed in the electrode sheet placing groove of the mounting plate before the electrode sheet is assembled, then the gas pressure supply assembly provides negative pressure to the suction hole of the suction cup, so as to provide uniform adsorption force to the electrode sheet in the electrode sheet placing groove by means of negative pressure adsorption, so that the lower surface of the electrode sheet is uniformly stressed, the curled electrode sheet is flattened and adsorbed, the problem that the curled electrode sheet is difficult to lock the center due to uneven adsorption is avoided, and the assembly precision and assembly survival rate of the battery are improved. In addition, since the electrode sheet needs to be dried before assembly, the electrode sheet is easy to curl again during drying, therefore, the limiting plate is arranged on the mounting plate to abut against the electrode sheet in the electrode sheet placing groove, and the entire electrode sheet adsorption device is placed in the drying equipment for drying treatment, so that the electrode sheet is prevented from curling again under the limiting action of the limiting plate. After the drying of the electrode sheet is completed, the entire electrode sheet adsorption device is taken out of the drying equipment, and then the limiting plate is removed from the mounting plate. In this process, the electrode sheet always maintains a flat state, so as to facilitate the accurate locking of the position of the center of the electrode sheet by the subsequent material taking mechanism, so as to achieve the effect of accurate assembly.

[0006] In some embodiments, the limiting plate is provided with an opening, the opening is in communication with the pole piece placing groove, the area of the opening is smaller than the area of the pole piece placing groove, and the opening is configured to volatilize water when the pole piece is dried. Such a design can volatilize the water in the pole piece to the external environment through the opening on the limiting plate during the drying process of the pole piece, thereby improving the drying efficiency of the pole piece.

[0007] In some embodiments, one of the mounting plate and the limiting plate is provided with a guide pin, and the other is provided with a guide hole, and the guide pin cooperates with the guide hole. Such a design can guide the limiting plate during the installation of the limiting plate through the cooperation of the guide pin and the guide hole, thereby improving the installation accuracy of the limiting plate and enabling the limiting plate to accurately cover the pole piece in the pole piece placing groove.

[0008] In some embodiments, the limiting plate is an insulating piece. Such a design can avoid the conductive particles on the limiting plate from falling onto the pole piece, thereby preventing the pole piece with charged particles from being installed into the battery, which can cause low-voltage of the battery, when the limiting plate covers the pole piece placing groove.

[0009] In some embodiments, the mounting plate is provided with a plurality of pole piece placing grooves distributed at intervals. Such a design can install a plurality of pole pieces in a plurality of pole piece placing grooves, and then provide negative pressure to the suction holes of the suction disc through the air pressure supply assembly to provide uniform suction force to the plurality of pole pieces in the plurality of pole piece placing grooves by using negative pressure suction, so that the lower surfaces of the plurality of pole pieces are uniformly stressed, thereby simultaneously flattening and suctioning the plurality of curled pole pieces, which can improve work efficiency.

[0010] In some embodiments, each pole piece placing groove is provided with a corresponding serial number identifier on one side. Such a design can match the serial number identifier with the serial number of the assembled product by providing a corresponding serial number identifier on one side of each pole piece placing groove, so as to realize data traceability management for subsequent tracking and quality control.

[0011] In some embodiments, the suction disc is a flexible suction disc, and the flexible suction disc abuts against the mounting plate. Such a design can tightly suction the flexible suction disc and the mounting plate together under the condition that the suction holes on the flexible suction disc generate negative pressure, while reducing the suction gap between the suction disc and the pole piece, so that the suction force of the suction disc on the pole piece is stronger, and the pole piece can be better suctioned and flattened.

[0012] In some embodiments, the suction disc is provided with at least two, and the at least two suction discs are distributed along the width direction of the mounting plate. With this design, by providing at least two suction discs in the width direction of the mounting plate, the number of suction holes can be increased, thereby expanding the area of the mounting plate to provide more pole piece placement slots on the mounting plate, so that more pole pieces can be flatly adsorbed at the same time, and the work efficiency is further improved.

[0013] In some embodiments, the suction disc assembly further comprises a fixing plate and a gas pipe connecting joint, the suction disc is arranged above the fixing plate, and the gas pipe connecting joint is arranged below the suction disc and penetrates through the fixing plate to communicate with the gas flow channel of the gas pressure supply assembly. With this design, the suction disc can be installed on the fixing plate to improve the installation stability of the suction disc, and the gas pipe connecting joint below the suction disc can penetrate through the fixing plate to extend into the gas pressure supply assembly to communicate with the gas flow channel of the gas pressure supply assembly, so that the negative pressure can be smoothly provided to the suction hole through the gas flow channel of the gas pressure supply assembly.

[0014] In some embodiments, the gas pressure supply assembly is further configured to provide positive pressure to the suction hole to blow air through the suction hole to the pole piece placement slot. With this design, when the gas pressure supply assembly provides positive pressure to the suction hole, air can be blown to the suction hole to blow away impurities remaining in the pole piece placement slot, thereby achieving the effect of positive pressure reverse blowing cleaning, and cross contamination between pole pieces made of different materials can be reduced when replacing pole pieces made of different materials.

[0015] In some embodiments, the gas pressure supply assembly comprises a base and a base; the base is arranged above the base; the base is provided with an electrical controller and a gas flow channel, and the electrical controller is configured to provide negative pressure or positive pressure to the suction hole through the gas flow channel. With this design, the base can be installed on the base to improve the installation stability of the base, and the electrical controller of the base can be used to control the gas flow channel to draw air from the suction hole to provide negative pressure to the suction hole to flatly adsorb the pole piece, or to control the gas flow channel to blow air to the suction hole to provide positive pressure to the suction hole to clean the pole piece placement slot by positive reverse blowing.

[0016] In some embodiments, the top end face of the base is provided with a sealing strip, and the sealing strip abuts against the suction disc assembly. With this design, when the suction disc assembly is installed on the base of the gas pressure supply assembly, the suction disc assembly can abut against the sealing strip on the top end face of the base to seal the gap between the suction disc assembly and the base with the sealing strip, so that during the process of providing negative pressure or positive pressure to the suction hole by the electrical controller through the gas flow channel, air leakage from the gap between the suction disc assembly and the base can be avoided to affect the effect of forming negative pressure or positive pressure.

[0017] In some embodiments, the top end surface of the base is further provided with a magnetic suction element, the suction disc assembly is provided with a magnetic suction matching element, and the magnetic suction element and the magnetic suction matching element are magnetically attracted and matched. Through the magnetic attraction and matching of the magnetic suction element and the magnetic suction matching element, the suction disc assembly and the air pressure supply assembly can be quickly disassembled and assembled, and the stability of the suction disc assembly installed on the base can be improved.

[0018] The application also provides a battery production line, comprising a battery assembling device, a material taking mechanism and the above-mentioned electrode piece suction device; the battery assembling device is provided with an assembling position; the material taking mechanism is configured to transport the electrode piece in the electrode piece placing groove of the electrode piece suction device to the assembling position.

[0019] The above description is only a summary of the technical solutions of the application. In order to make the technical means of the application more clear, the application can be implemented according to the content of the description, and in order to make other purposes, features and advantages of the application more obvious and easy to understand, the following specific embodiments of the application are described. BRIEF DESCRIPTION OF DRAWINGS

[0020] In order to more clearly illustrate the technical solutions in the embodiments of the application or the prior art, the following will briefly introduce the drawings needed to be used in the embodiment or prior art description. Obviously, the drawings in the following description are only some embodiments of the application, and for those skilled in the art, other drawings can also be obtained without creative labor on the basis of the structures shown in the drawings.

[0021] Figure 1 It is an exploded view of an embodiment of the electrode piece suction device of the application;

[0022] Figure 2 It is an exploded view of an embodiment of the electrode piece suction device of the application;

[0023] Figure 3 It is a structural schematic view of the air pressure supply assembly in an embodiment of the electrode piece suction device of the application.

[0024] EXPLANATION OF DRAWINGS:

[0025]

[0026] The implementation, functional features and advantages of the application will be further described with reference to the embodiments and the accompanying drawings. DETAILED DESCRIPTION

[0027] The embodiments of the technical solutions of the application will be described in detail below with reference to the drawings. The following embodiments are only used to more clearly illustrate the technical solutions of the application, and therefore only serve as examples, but cannot limit the protection scope of the application.

[0028] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs; the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of this application; the use of the terms "including," "comprising," "having" and "with" in the specification and claims, along with their derivatives, are meant to be interpreted as specifying inclusion of the referenced elements, but not exclusion of any other elements.

[0029] 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 "a plurality of" is two or more, unless otherwise explicitly specified.

[0030] Reference herein to "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment can be included in at least one embodiment of the application. The appearance of the phrase in various places in the specification does not necessarily all refer to the same embodiment, nor is it necessarily independent or alternative embodiments to each other. It is explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments.

[0031] In the description of the embodiments of the present application, the term "a plurality of" refers to two or more (including two), and similarly, "a plurality of groups" refers to two or more groups (including two groups), and "a plurality of pieces" refers to two or more pieces (including two pieces).

[0032] In the description of the embodiments of the present application, the technical terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the embodiments of the present application and simplifying the description, and therefore cannot be understood as limiting the embodiments of the present application, which do not indicate or imply that the devices or components referred to must have a particular orientation, be constructed and operated in a particular orientation.

[0033] In the description of the embodiments of the present application, unless otherwise explicitly specified and limited, the technical terms "mounting", "connecting", "connecting", "fixing", and the like should be understood in a broad sense, for example, it can be fixedly connected, or it can be detachably connected, or it can be integrated; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the internal communication of two components or the interaction relationship between two components. For those skilled in the art, the specific meaning of the above terms in the embodiments of the present application can be understood according to the specific circumstances.

[0034] In the production process of button cells, the cold-pressed electrode sheet is usually dried and placed on the tray station of the button cell assembly machine, and the electrode sheet on the tray is sent to the assembly station for assembly by the material taking mechanism of the button cell assembly machine. However, in the assembly process of the battery assembly machine in the related art, it is difficult to lock the center of the electrode sheet for material taking positioning due to the curling of the electrode sheet, which affects the production efficiency and assembly survival rate of the battery.

[0035] Based on the above problems, the present application provides an electrode sheet adsorption device 100, which aims to flatten and adsorb the curled electrode sheet to improve the assembly precision and assembly survival rate of the battery. The following will be described in detail in combination with specific drawings and embodiments.

[0036] Please refer to Figures 1 to 3 In an embodiment of the present application, the electrode sheet adsorption device 100 includes a suction cup assembly 10 and a gas pressure supply assembly 20; the suction cup assembly 10 includes a suction cup 11, a mounting plate 12, and a limiting plate 13, the suction cup 11 is provided with a plurality of spaced adsorption holes 111, the mounting plate 12 is arranged above the suction cup 11 and is provided with an electrode sheet placing groove 121, the electrode sheet placing groove 121 is in communication with at least one adsorption hole 111; the gas pressure supply assembly 20 is configured to provide negative pressure to the adsorption hole 111; the limiting plate 13 is arranged on the mounting plate 12 and covers the electrode sheet placing groove 121, and the limiting plate 13 is configured to abut against the electrode sheet in the electrode sheet placing groove 121.

[0037] In this embodiment, the suction cup 11 is also called a vacuum suction cup, which realizes adsorption of the electrode sheet by creating a vacuum environment under the action of the gas pressure supply assembly 20, so as to generate uniform adsorption force on the lower surface of the electrode sheet, thereby flattening the curled electrode sheet and making the electrode sheet adhere to the suction cup 11 flat, so that the subsequent material taking mechanism can successfully lock the position of the center of the electrode sheet, thereby realizing precise assembly of the electrode sheet. The cross-sectional shape of the suction cup 11 can include but is not limited to rectangular, circular, triangular, polygonal, and special-shaped.

[0038] The mounting plate 12 is a mounting structure member with an electrode sheet placing groove 121, and the shape of the mounting plate 12 includes but is not limited to a rectangular plate, a circular plate, and a special-shaped plate. The number of electrode sheet placing grooves 121 provided on the mounting plate 12 can be one or at least two, and the shape of the electrode sheet placing groove 121 is adapted to the shape of the electrode sheet, for example, when the shape of the electrode sheet is circular, the shape of the electrode sheet placing groove 121 is also a circular groove.

[0039] The air pressure supply assembly 20 refers to a structure capable of providing negative pressure to the adsorption hole 111, and of course the air pressure supply assembly 20 can also provide positive pressure to the adsorption hole 111. When the air pressure supply assembly 20 provides negative pressure to the adsorption hole 111, uniform adsorption force can be generated on the lower surface of the pole piece, so that the curled pole piece can be sucked flat, so that the pole piece is tightly attached to the suction disc 11; when the air pressure supply assembly 20 provides positive pressure to the adsorption hole 111, air can be blown to the adsorption hole 111 to blow away impurities remaining in the pole piece placing groove 121, achieving the effect of reverse air blowing cleaning.

[0040] The limiting plate 13 is a limiting structure above the mounting plate 12, which covers the pole piece in the pole piece placing groove 121. The shape of the limiting plate 13 includes but is not limited to rectangular plate, circular plate, and special-shaped plate, which can be set according to the shape of the mounting plate 12.

[0041] In summary, the technical scheme of the embodiment of the present application provides a pole piece adsorption device 100. Before assembling the pole piece, the pole piece is placed in the pole piece placing groove 121 of the mounting plate 12, and then the air pressure supply assembly 20 provides negative pressure to the adsorption hole 111 of the suction disc 11 to provide uniform adsorption force to the pole piece in the pole piece placing groove 121 by negative pressure adsorption, so that the lower surface of the pole piece is uniformly stressed to adsorb the curled pole piece flat, avoiding the problem that the curled pole piece is difficult to lock the center due to uneven adsorption, thereby improving the assembly precision and assembly survival rate of the battery. In addition, the pole piece needs to be dried before assembly, and the pole piece is easy to curl again during drying. Therefore, the limiting plate 13 is provided on the mounting plate 12 to abut against the pole piece in the pole piece placing groove 121, and then the entire pole piece adsorption device 100 is placed in the drying equipment for drying treatment. In this way, the pole piece can be prevented from curling again under the limiting action of the limiting plate 13. After the pole piece is dried, the entire pole piece adsorption device 100 is taken out of the drying equipment, and then the limiting plate 13 is removed from the mounting plate 12. In this process, the pole piece always maintains a flat state, so that the subsequent material taking mechanism can accurately lock the position of the pole piece center to achieve the effect of accurate assembly.

[0042] Please refer to Figure 2 In an embodiment of the present application, the limiting plate 13 is provided with an opening 131, which is in communication with the pole piece placing groove 121. The area of the opening 131 is smaller than that of the pole piece placing groove 121, and the opening 131 is configured to volatilize water when drying the pole piece.

[0043] The opening 131 on the limiting plate 13 penetrates from the side surface close to the mounting plate 12 to any other surface, so that the pole piece placement groove 121 on the mounting plate 12 can be communicated with the external environment through the opening 131 on the limiting plate 13. For example, the opening 131 can be a straight hole section, which penetrates from the side surface close to the mounting plate 12 to the side surface away from the mounting plate 12; or the opening 131 can also be a bent hole section, which penetrates from the side surface close to the mounting plate 12 to the circumferential side of the mounting plate 12. The opening 131 and the pole piece placement groove 121 can be coaxially arranged or non-coaxially arranged, as long as the opening 131 is communicated with the pole piece placement groove 121.

[0044] Such design can volatilize the moisture in the pole piece to the external environment through the opening 131 on the limiting plate 13 during the drying process of the pole piece, thereby improving the drying efficiency of the pole piece.

[0045] Please refer to Figure 2 In an embodiment of the present application, one of the mounting plate 12 and the limiting plate 13 is provided with the guide pin 122, and the other is provided with the guide hole 132, and the guide pin 122 cooperates with the guide hole 132.

[0046] Such design can guide the limiting plate 13 under the cooperation of the guide pin 122 and the guide hole 132 during the installation of the limiting plate 13, thereby improving the installation accuracy of the limiting plate 13, so that the limiting plate 13 can accurately cover the pole piece in the pole piece placement groove 121.

[0047] In an embodiment, the guide pin 122 can be arranged on the top of the mounting plate 12, and the guide hole 132 can be arranged on the bottom of the limiting plate 13. In another embodiment, the guide hole 132 can be arranged on the top of the mounting plate 12, and the guide pin 122 can be arranged on the bottom of the limiting plate 13.

[0048] In order to further improve the installation accuracy of the limiting plate 13, a plurality of spaced guide pins 122 can be arranged on one of the mounting plate 12 and the limiting plate 13, and a plurality of spaced guide holes 132 can be arranged on the other, so that the plurality of guide pins 122 cooperates with the plurality of guide holes 132 one by one.

[0049] Please refer to Figures 1 to 2 In an embodiment of the present application, the limiting plate 13 is an insulating piece. That is, the limiting plate 13 is a non-conductive structure, for example, it can be a plastic piece, a ceramic piece, etc.

[0050] The design can avoid that the conductive particles on the limiting plate 13 fall on the pole piece and cause the low-voltage phenomenon of the battery when the pole piece with the charged particles is installed into the battery.

[0051] Please refer to Figure 2 In an embodiment of the present application, the mounting plate 12 is provided with a plurality of pole piece placing grooves 121 which are spaced apart.

[0052] The plurality of pole piece placing grooves 121 are used for placing a plurality of pole pieces respectively. The plurality of pole piece placing grooves 121 can be spaced apart along the circumferential direction of the mounting plate 12, or can be distributed in a rectangular array on the mounting plate 12, or can be distributed in a ring array on the mounting plate 12. In an embodiment, in order to be able to provide a larger number of pole piece placing grooves 121, a plurality of rows of pole piece placing grooves 121 can be provided along the width direction of the mounting plate 12, each row of pole piece placing grooves 121 is provided with a plurality of pole piece placing grooves 121 which are spaced apart along the length direction of the mounting plate 12, and the two adjacent rows of pole piece placing grooves 121 are distributed in a staggered manner.

[0053] The design can install a plurality of pole pieces in the plurality of pole piece placing grooves 121 respectively, and then provide negative pressure to the suction holes 111 of the suction plate 11 through the air pressure supply assembly 20 to provide uniform suction force to the plurality of pole pieces in the plurality of pole piece placing grooves 121 by using the negative pressure suction mode, so that the lower surfaces of the plurality of pole pieces are uniformly stressed, thereby flatly adsorbing the plurality of curled pole pieces at the same time, and the working efficiency can be improved.

[0054] Please refer to Figure 2 In an embodiment of the present application, each pole piece placing groove 121 is provided with a corresponding serial number mark 123 on one side.

[0055] The serial number mark 123 refers to a mark with different serial numbers, for example, the plurality of pole piece placing grooves 121 correspond to the serial numbers 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20 and the like in turn.

[0056] The design can match the serial number mark 123 with the serial number of the assembled product by providing the corresponding serial number mark 123 on one side of each pole piece placing groove 121, so as to realize data traceability management, thereby facilitating subsequent tracking and quality control.

[0057] Please refer to Figure 2 In an embodiment of the present application, the suction plate 11 is a flexible suction plate, and the flexible suction plate abuts against the mounting plate 12. Optionally, the flexible suction plate is a nano suction plate.

[0058] Such design, in the case of generating negative pressure in the adsorption hole 111 of the flexible suction cup, the flexible suction cup can be tightly adsorbed with the mounting plate 12, and at the same time, the adsorption gap between the suction cup 11 and the pole piece can be reduced, so that the adsorption force of the suction cup 11 on the pole piece is stronger, and the pole piece can be better adsorbed flat.

[0059] Please refer to Figure 2 In an embodiment of the present application, the suction cup 11 is provided with at least two, and the at least two suction cups 11 are distributed along the width direction of the mounting plate 12.

[0060] Such design, by providing at least two suction cups 11 in the width direction of the mounting plate 12, the number of adsorption holes 111 can be increased, so as to expand the area of the mounting plate 12, so as to provide more number of pole piece placing grooves 121 on the mounting plate 12, so as to simultaneously adsorb more number of pole pieces flat, so as to further improve the work efficiency.

[0061] Please refer to Figure 2 In an embodiment of the present application, the suction cup assembly 10 further comprises a fixed plate 14 and a gas pipe connecting joint 15, the suction cup 11 is arranged above the fixed plate 14, and the gas pipe connecting joint 15 is arranged below the suction cup 11 and penetrates the fixed plate 14 to communicate with the gas flow channel 222 of the gas pressure supply assembly 20.

[0062] The fixed plate 14 is a support member for supporting the structures of the suction cup 11, the mounting plate 12, the limiting plate 13, etc., and the shape of the fixed plate 14 includes but is not limited to rectangular plate, circular plate, special-shaped plate.

[0063] Such design, the suction cup 11 can be installed on the fixed plate 14 to improve the installation stability of the suction cup 11, and at the same time, the gas pipe connecting joint 15 below the suction cup 11 penetrates the fixed plate 14 and extends into the gas pressure supply assembly 20 to communicate with the gas flow channel 222 of the gas pressure supply assembly 20, so that the negative pressure can be smoothly provided to the adsorption hole 111 through the gas flow channel 222 of the gas pressure supply assembly 20.

[0064] In an embodiment, in order to further improve the stability of the suction cup 11 installed on the fixed plate 14, a profiling groove can be provided on the fixed plate 14 to install the suction cup 11 in the profiling groove of the fixed plate 14.

[0065] Please refer to Figures 1 to 3 In an embodiment of the present application, the gas pressure supply assembly 20 is further configured to provide positive pressure to the adsorption hole 111 to blow air to the pole piece placing groove 121 through the adsorption hole 111.

[0066] The design can blow air to the adsorption hole 111 to blow away impurities remaining in the pole piece placing groove 121, has the effect of positive pressure reverse blowing cleaning, and can reduce cross contamination between pole pieces of different materials when replacing the pole pieces of different materials.

[0067] Please refer to Figure 3 In an embodiment of the present application, the air pressure supply assembly 20 includes a base 21 and a base 22; the base 22 is arranged on the base 21, and the suction cup assembly 10 is arranged above the base 22; the base 22 is provided with an electrical controller 221 and an air flow channel 222, and the electrical controller 221 is configured to provide negative pressure or positive pressure to the adsorption hole 111 through the air flow channel 222.

[0068] The base 21 is a support member for supporting and fixing the structure of the base 22, and the shape of the base 21 includes but is not limited to a rectangular plate, a circular plate, and a special-shaped plate.

[0069] The design can install the base 22 on the base 21 to improve the installation stability of the base 22, and use the electrical controller 221 of the base 22 to control the air flow channel 222 to exhaust air to the adsorption hole 111 to provide negative pressure to the adsorption hole 111 to adsorb the pole piece flatly; or use the electrical controller 221 to control the air flow channel 222 to blow air to the adsorption hole 111 to provide positive pressure to the adsorption hole 111 to clean the pole piece placing groove 121 in the positive reverse blowing mode.

[0070] In an embodiment, in order to facilitate the connection between the air flow channel 222 in the base 22 and the external air supply equipment, an air pipe external connector 225 can be arranged on one side of the base 22, so that the air flow channel 222 in the base 22 is connected with the external air supply equipment through the air pipe external connector 225.

[0071] Please refer to Figure 3 In an embodiment of the present application, the top end face of the base 22 is provided with a sealing strip 223, and the sealing strip 223 abuts against the suction cup assembly 10.

[0072] The design can abut the suction cup assembly 10 against the sealing strip 223 on the top end face of the base 22 when the suction cup assembly 10 is installed on the base 22 of the air pressure supply assembly 20, so as to seal the gap between the suction cup assembly 10 and the base 22 by using the sealing strip 223. Thus, in the process of providing negative pressure or positive pressure to the adsorption hole 111 by the electrical controller 221 through the air flow channel 222, air leakage from the gap between the suction cup assembly 10 and the base 22 can be avoided to affect the effect of forming negative pressure or positive pressure.

[0073] In actual application, the sealing strip 223 can be a sealing structure member made of rubber strip, silica gel strip or other materials.

[0074] Please refer to Figure 3 In an embodiment of the present application, the top end surface of the base 22 is further provided with a magnetic attraction member 224, and the suction cup assembly 10 is provided with a magnetic attraction matching member. The magnetic attraction member 224 and the magnetic attraction matching member are magnetically attracted and matched.

[0075] Such a design can realize quick disassembly and assembly between the suction cup assembly 10 and the air pressure supply assembly 20 through the magnetic attraction and matching of the magnetic attraction member 224 and the magnetic attraction matching member, and can improve the stability of the installation of the suction cup assembly 10 on the base 22.

[0076] In actual application, the magnetic attraction member 224 can be installed on the top end surface of the base 22 by means of adhesion, clamping, insertion, screw connection, etc. Similarly, the magnetic attraction matching member can also be installed on the suction cup assembly 10 by means of adhesion, clamping, insertion, screw connection, etc. Of course, the magnetic attraction matching member can also be part of the suction cup assembly 10, that is, part of the structure of the suction cup assembly 10 is the magnetic attraction matching member.

[0077] In an embodiment, in order to improve the installation stability of the magnetic attraction member 224, an installation groove can be arranged on the top end surface of the base 22 to install the magnetic attraction member 224 in the installation groove of the base 22.

[0078] According to some embodiments of the present application, the present application provides an electrode sheet suction device 100, which comprises a suction cup assembly 10 and an air pressure supply assembly 20. The suction cup assembly 10 comprises a suction cup 11, a mounting plate 12, a limiting plate 13, a fixed plate 14, and an air pipe connecting joint 15. The suction cup 11 is arranged above the fixed plate 14. The air pipe connecting joint 15 is arranged below the suction cup 11 and penetrates through the fixed plate 14 to communicate with an air flow channel 222 of the air pressure supply assembly 20. The suction cup 11 is provided with a plurality of spaced suction holes 111. The mounting plate 12 is arranged above the suction cup 11 and is provided with an electrode sheet placing groove 121. The electrode sheet placing groove 121 communicates with at least one suction hole 111. The limiting plate 13 is arranged on the mounting plate 12 and covers the electrode sheet placing groove 121. The limiting plate 13 is configured to abut against an electrode sheet in the electrode sheet placing groove 121. The air pressure supply assembly 20 comprises a base 21 and a base 22. The base 22 is arranged on the base 21, and the suction cup assembly 10 is arranged above the base 22. The base 22 is provided with an electrical controller 221 and an air flow channel 222. The electrical controller 221 is configured to provide negative pressure or positive pressure to the suction holes 111 through the air flow channel 222.

[0079] In the technical solutions of the embodiments of the present application, before assembling the pole piece, the pole piece is first placed in the pole piece placing groove 121 of the mounting plate 12, and then the electrical controller 221 of the base 22 is used to control the airflow channel 222 to pump air to the adsorption hole 111, so as to provide negative pressure to the adsorption hole 111 of the suction plate 11, and in the manner of negative pressure adsorption, uniform adsorption force is provided to the pole piece in the pole piece placing groove 121, so that the lower surface of the pole piece is uniformly stressed, and the curled pole piece is flatly adsorbed. At the same time, the limiting plate 13 is arranged on the mounting plate 12, the limiting plate 13 abuts against the pole piece in the pole piece placing groove 121, and then the entire pole piece adsorption device 100 is placed in the drying equipment for drying treatment, so that under the limiting action of the limiting plate 13, the pole piece is prevented from being curled again. After the pole piece is dried, the entire pole piece adsorption device 100 is taken out of the drying equipment, and then the limiting plate 13 is taken off the mounting plate 12. In this process, the pole piece always maintains a flat state, so as to facilitate the subsequent material taking mechanism to accurately lock the position of the pole center of the pole piece, so as to achieve the effect of accurate assembly. After the pole piece is taken out for assembly, the electrical controller 221 is used to control the airflow channel 222 to blow air to the adsorption hole 111, so as to provide positive pressure to the adsorption hole 111, and the pole piece placing groove 121 is positively and reversely blown and cleaned. In this way, when the pole pieces of different materials are replaced, the cross contamination between the pole pieces of different materials can be reduced.

[0080] The present application also provides a battery production line, which comprises a battery assembling device, a material taking mechanism and the pole piece adsorption device 100. The specific structure of the pole piece adsorption device 100 is referred to the above-mentioned embodiments. Since the battery production line adopts all the technical solutions of the above-mentioned embodiments, it at least has all the beneficial effects brought by the technical solutions of the above-mentioned embodiments, which will not be repeated here. The battery assembling device is provided with an assembling position. The material taking mechanism is configured to transport the pole piece in the pole piece placing groove 121 of the pole piece adsorption device 100 to the assembling position.

[0081] It can be understood that after the pole piece is adsorbed and flattened by the pole piece adsorption device 100, the material taking head of the material taking mechanism is moved above the pole piece, so as to facilitate the material taking head to accurately lock the pole center of the pole piece, and accurately transport the pole piece to the assembling position of the battery assembling device for accurate assembly of the pole piece, thereby improving the assembly precision and assembly survival rate of the battery.

[0082] The above-mentioned is only an exemplary embodiment of the present application, and does not limit the patent scope of the present application. Any equivalent structural transformation made by referring to the content of the present application specification and drawings, or direct / indirect application in other related technical fields is included in the patent protection scope of the present application.

Claims

1. An electrode adsorption device, characterized in that, include: A suction cup assembly includes a suction cup and a mounting plate. The suction cup has a plurality of spaced suction holes. The mounting plate is disposed above the suction cup and has an electrode placement groove, which communicates with at least one of the suction holes. A pressure supply component is configured to provide negative pressure to the adsorption pore; A limiting plate is disposed on the mounting plate and covers the electrode placement slot, the limiting plate being configured to abut against the electrode in the electrode placement slot.

2. The electrode adsorption device as described in claim 1, characterized in that, The limiting plate has an opening that communicates with the electrode placement groove. The area of ​​the opening is smaller than the area of ​​the electrode placement groove. The opening is configured to allow moisture to evaporate when the electrode is being dried.

3. The electrode adsorption device as described in claim 1, characterized in that, One of the mounting plate and the limiting plate is provided with a guide pin, and the other is provided with a guide hole, wherein the guide pin cooperates with the guide hole; And / or, the limiting plate is an insulating component.

4. The electrode adsorption device according to any one of claims 1 to 3, characterized in that, The mounting plate is provided with multiple spaced-apart slots for placing the electrode sheets.

5. The electrode adsorption device as described in claim 4, characterized in that, Each of the electrode placement slots has a corresponding serial number label on one side.

6. The electrode adsorption device according to any one of claims 1 to 3, characterized in that, The suction cup is a flexible suction cup, and the flexible suction cup abuts against the mounting plate; And / or, the suction cups are provided in at least two, and the at least two suction cups are spaced apart along the width direction of the mounting plate.

7. The electrode adsorption device according to any one of claims 1 to 3, characterized in that, The suction cup assembly also includes a fixing plate and an air pipe connector. The suction cup is located above the fixing plate, and the air pipe connector is located below the suction cup and passes through the fixing plate to communicate with the airflow channel of the air pressure supply assembly.

8. The electrode adsorption device according to any one of claims 1 to 3, characterized in that, The air pressure supply component is also configured to provide positive pressure to the adsorption orifice to blow air through the adsorption orifice into the electrode placement slot.

9. The electrode adsorption device as described in claim 8, characterized in that, The air pressure supply component includes: Base; A base is provided on the base, and the suction cup assembly is provided above the base; the base is provided with an electrical controller and an airflow channel, and the electrical controller is configured to provide negative pressure or positive pressure to the suction hole through the airflow channel.

10. The electrode adsorption device as described in claim 9, characterized in that, The top end face of the base is provided with a sealing strip, which abuts against the suction cup assembly; And / or, the top end face of the base is also provided with a magnetic suction element, and the suction cup assembly is provided with a magnetic suction engagement element, wherein the magnetic suction element and the magnetic suction engagement element are magnetically engaged.

11. A battery production line, characterized in that, include: Battery assembly equipment, equipped with assembly stations; The electrode adsorption device as described in any one of claims 1 to 10; The material handling mechanism is configured to transport the electrode in the electrode placement slot of the electrode adsorption device to the assembly position.

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