A stepped battery cell automatic adhesive tape device and battery cell assembly machine

Abstract

The present invention discloses a stepped automatic adhesive tape device for battery cells and a battery cell assembly machine thereof, comprising a drive assembly, a motor support, a rotary motor, a carrier, and a adhesive tape assembly, wherein the drive assembly is arranged on a support plate; the motor support is connected to the output end of the drive assembly; the rotary motor is connected to the motor support; the carrier is arranged below the rotary motor; the adhesive tape assembly comprises a first adhesive tape member and a second adhesive tape member, and the first adhesive tape member and the second adhesive tape member are arranged below the carrier. The present invention adopts a stepped adhesive tape method with a height difference structure, and simultaneously realizes adhesive tape on the battery cell body and the tab surface in a single action, thereby reducing the adhesive tape process and effectively improving the adhesive tape efficiency. In addition, flexible contact with the battery cell or the tab and real-time pressure sensing are achieved during the adhesive tape process, effectively reducing the extrusion deformation of the battery cell or the tab during the adhesive tape process and ensuring the adhesive tape quality.

Description

Technical Field

[0001] The present invention relates to the field of automatic production equipment for new energy batteries, and in particular to a stepped battery cell automatic adhesive tape device and a battery cell assembly machine thereof. Background Art

[0002] The battery cell is the core structure of the lithium-ion battery, which refers to a single electrochemical cell containing positive and negative electrodes. It is not used directly. The battery cell and the protection circuit board constitute a battery that can be used directly.

[0003] The battery cell includes a battery cell body, which is generally a block or columnar structure, with multiple layers of positive and negative electrodes stacked inside, and filled with electrolyte to form a battery cell entity. Flexible sheet-like positive and negative electrode sheets extending outward are provided on one end wall of the battery cell body for connecting to the circuit to realize the power supply function.

[0004] In the production process of battery cells, an intermediate process involved is gluing. The gluing locations include the battery cell body and the tabs. The role of gluing is to protect the surface of the battery cell or the tabs and to act as an insulating partition. For battery cells with small block structures, there is a height difference between the surface of the battery cell body and the plane where the tabs are located. When glue is required on the surface of the battery cell body and the surface of the tabs at the same time, the existing gluing method can only complete the gluing of the battery cell body and the tab surface separately through multiple gluing actions. The gluing process is cumbersome and inefficient. Summary of the Invention

[0005] The technical problem to be solved by the present invention is to address the deficiencies of the above-mentioned prior art and provide a stepped glue sticking method with a height difference structure, which can simultaneously achieve the attachment of adhesive tape to the battery cell body and the surface of the tab in a single action, reduce the gluing process, effectively improve the gluing efficiency, and achieve flexible contact with the battery cell or the tab and real-time pressure sensing during the gluing process, effectively reduce the extrusion deformation of the battery cell or the tab during the gluing process, and ensure the quality of gluing, a stepped battery cell automatic glue tape sticking device and a battery cell assembly machine.

[0006] The technical solution adopted by the present invention is as follows: a stepped battery cell automatic glue paper device, used for automatic gluing of small battery cells, including a support plate, a driving assembly, a motor support, a rotating motor, a bearing and a gluing assembly, wherein the driving assembly is arranged on the support plate, and the driving assembly outputs power in the vertical and horizontal directions; the motor support is connected to the output end of the driving assembly, and is driven by the driving assembly to move in the vertical and horizontal directions; the rotating motor is connected to the motor support, the output end of the rotating motor is arranged downward, and outputs rotational power in the horizontal direction; the bearing is arranged below the rotating motor, and is connected to the output end of the rotating motor, and is driven by the rotating motor to rotate in the horizontal plane; the gluing assembly includes a first gluing part and a second gluing part, the first gluing part and the second gluing part A glue-sticking part and a second glue-sticking part are arranged at intervals below the supporting part; the first glue-sticking part and the second glue-sticking part are respectively movably connected to the supporting part in the vertical direction, and maintain elastic buffering in the vertical direction by elastic force; the lower parts of the first glue-sticking part and the second glue-sticking part extend along a Z-shaped path, respectively, and respectively include a connecting part, a horizontal step surface and a glue-absorbing part, wherein the connecting part extends in the vertical direction for connection; the horizontal step part is located below the connecting part and extends in the horizontal direction; the glue-absorbing part is located at one end of the horizontal step part and extends downward in the vertical direction; the horizontal step surface of the second glue-sticking part is located above the horizontal step surface of the first glue-sticking part; the glue-absorbing parts of the first glue-sticking part and the second glue-sticking part independently absorb glue paper, and complete the stepped linkage glue-sticking through the mutual contact of the horizontal step surfaces of the two during the glue-sticking process.

[0007] Preferably, the driving assembly includes a first linear module, a first slide, a second linear module and a second slide, wherein the first linear module is vertically arranged on the support plate and outputs power in the vertical direction; the first slide is connected to the output end of the first linear module and is driven to move up and down by the first linear module; the first slide is an L-shaped seat body, one end of which is connected to the output end of the first linear module, and the other end extends horizontally outward perpendicular to the first linear module; the second linear module is arranged on the side wall of the other end of the first slide and outputs power in the horizontal direction; the second slide is connected to the output end of the second linear module and is driven to move linearly by the second linear module.

[0008] Preferably, the supporting member includes a rotating shaft, a rubber support and a vertical support, wherein the rotating shaft is arranged below the motor support and is connected to the output end of the rotating motor; the rubber support is horizontally connected to the bottom of the rotating shaft and rotates with the rotating shaft; the vertical support is vertically connected to the bottom of the rubber support, dividing the bottom of the rubber support into two installation spaces, and the vertical support is located on the side walls of the two installation spaces and respectively provided with a first slide rail, the first slide rail extends in the vertical direction and is movably mounted with a first slider; the first rubber part and the second rubber part are respectively located in the two installation spaces of the vertical support and are respectively connected to the first slider, and the movable guiding in the vertical direction is realized by the connection between the first slider and the first slide rail.

[0009] Preferably, the first glue-applying part includes a first connecting rod, a first compression spring, a glue-applying slide and a first glue-applying head, wherein the glue-applying slide is arranged below the glue-applying support and is located in the installation space on one side of the vertical support and is fixedly connected to the first sliding block; the first connecting rod includes at least two, at least two first connecting rods pass through the glue-applying slide in the vertical direction and are connected to the glue-applying support, and slide freely in the glue-applying slide; the first compression spring is vertically connected between the glue-applying support and the glue-applying slide, and is used to provide elastic buffering for the glue-applying slide in the vertical direction; the first glue-applying head is vertically connected to the bottom of the glue-applying slide.

[0010] Preferably, the first glue sticking head is a Z-shaped block structure, and its vertically arranged connecting part is connected to the bottom of the glue sticking slide seat. A horizontal step surface extending horizontally is provided on one side below the connecting part. The bottom of the outer end of the horizontal step surface is vertically connected to the glue suction part. The bottom of the glue suction part is a horizontal glue suction surface, and at least two vacuum suction holes are arranged on the glue suction surface to fix the adhesive tape by vacuum negative pressure adsorption.

[0011] Preferably, the second glue-applying component includes a driving sensor component, a sliding guide component and a second glue-applying head, wherein the driving sensor component is located in the installation space on the other side of the vertical support and is connected to the side wall of the vertical support; the sliding guide component is arranged below the driving sensor component and is connected to the output end of the driving sensor component, and is driven to move up and down by the driving sensor component, and the sliding guide component is connected and fixed to the first slider on the other side of the vertical support, and is guided and limited by the first slider; the second glue-applying head is connected to the bottom of the sliding guide component.

[0012] Preferably, the drive sensing component includes a pressure sensor, a motor seat, a drive motor and a drive screw, wherein the pressure sensor is arranged in the installation space on the other side of the vertical support and is connected to the bottom of the rubber support; the motor seat is arranged at an interval below the pressure sensor and is connected to the side wall of the vertical support; the drive motor is arranged between the pressure sensor and the motor seat, and is connected to the pressure sensor, and the output end is arranged downward; the drive screw is vertically connected to the output end of the drive motor and extends downward through the motor seat.

[0013] The cam is fixedly mounted on the support frame, and the cam is connected to the support frame by a movable frame, and the movable frame is connected to the support frame by a movable frame.

[0014] Preferably, the second glue-applying head is arranged at the bottom of the connecting sleeve, and the second glue-applying head is a Z-shaped block structure, and its vertically arranged connecting part is connected to the bottom of the connecting sleeve, and a horizontal step surface extending horizontally is provided on the lower side of the connecting part, and the outer end bottom of the horizontal step surface is vertically connected to the glue-absorbing part, and the bottom of the glue-absorbing part is a horizontal glue-absorbing surface, and at least two vacuum suction holes are arranged on the glue-absorbing surface, and the adhesive tape is fixed by vacuum negative pressure adsorption.

[0015] A battery cell assembly machine includes a stepped battery cell automatic adhesive tape device.

[0016] The beneficial effects of the present invention are:

[0017] In response to the defects and shortcomings of the existing technology, the present invention independently developed and designed a stepped glue sticking method with a height difference structure, which can simultaneously stick adhesive tape on the battery cell body and the tab surface in a single action, reduce the gluing process, effectively improve the gluing efficiency, and realize flexible contact with the battery cell or the tab and real-time pressure sensing during the gluing process, effectively reducing the extrusion deformation of the battery cell or the tab during the gluing process, and ensuring the quality of gluing, a stepped battery cell automatic glue paper sticking device and a battery cell assembly machine.

[0018] The present invention aims to provide a cell gluing process section for use in the field of new energy batteries, belonging to an automatic cell gluing device, which functions to automatically apply glue to the surface of a cell and its tab. Specifically, the present invention uses a support plate as a bearing structure. A drive assembly is provided on the side wall of the support plate. The drive assembly provides linear power in the vertical direction through a first linear module and linear power in the horizontal direction through a second linear module to control the movement of a drive motor support to achieve position movement during the gluing process. At the same time, a rotary motor provided on the motor support provides rotational power in the horizontal plane to achieve angular rotation adjustment during the gluing process. The gluing assembly of the present invention includes a first gluing member and a second gluing member, both of which are respectively located in two installation spaces separated by a vertical support below the gluing support. The first gluing member is movably connected to the gluing support above it and is driven by the vertical power provided by the first linear module to approach the cell or tab to complete the gluing action. The second gluing member itself is integrated with a power output structure in the vertical direction. After being driven by the first linear module to approach the cell or tab, it outputs power through its internal power structure to continue downward to complete the gluing action. Specifically, the first glue-sticking part of the present invention uses the glue-sticking slide as a connecting bearing structure, and the side wall of the glue-sticking slide is slidably connected in the vertical direction with the first slide rail on the side wall of the vertical support through the first sliding block. The top of the glue-sticking slide is provided with a horizontal extension part, and is connected to the glue-sticking support through a first connecting rod vertically penetrated from bottom to top. The first connecting rod is movably connected to the glue-sticking slide to maintain the state of free sliding of the glue-sticking slide in the vertical direction, and at the same time, the glue-sticking slide is limited by the cap body at its bottom end to prevent it from falling; in addition, the glue-sticking slide and the glue-sticking support are connected by a first compression spring. After being subjected to an upward reaction force during glue-sticking, the first compression spring provides elastic buffering to avoid deformation of the battery cell or the ear caused by excessive extrusion during the glue-sticking process; further, a pressure sensor can also be provided between the glue-sticking slide and the glue-sticking support to sense and detect the upward reaction force transmitted during glue-sticking in real time, so as to facilitate real-time adjustment and control of the glue-sticking pressure.The second glue-sticking part of the present invention includes a driving sensor part, a sliding guide part and a second glue-sticking head. The motor seat of the driving sensor part is horizontally connected to the side wall on the other side of the vertical support. A pressure sensor is arranged above the motor seat, and a driving motor is arranged between the two. The top of the driving motor is connected to the pressure sensor, and the bottom output end is connected to a driving screw rod; the sliding guide part uses the transfer seat as a sliding structure, and the side of the transfer seat close to the vertical support is slidably connected to the vertical support through the first slider and the first slide rail; at the same time, a connecting sleeve is provided under the transfer seat, and is located in the sleeve space of the connecting sleeve, and is slidably connected to the connecting sleeve in the vertical direction through the second slide rail and the second slider; in addition, the transfer seat is connected to the vertical support through the screw sleeve inserted at the top thereof The driving screw is threadedly connected, and the rotational power output by the driving motor is converted into linear power in the vertical direction through the threaded connection between the screw sleeve and the driving screw, so as to drive the transfer seat to move up and down along the first slide rail, while the transfer seat drives the connecting sleeve to move up and down; at the same time, the transfer seat and the connecting sleeve are connected by the second connecting rod and the second compression spring; the above dual active connection method of the transfer seat and the vertical support, and the connecting sleeve and the transfer seat effectively increases the active path in the vertical direction. At the same time, during the process of the transfer seat driving the connecting sleeve to apply glue, the second compression spring arranged between the two is used to provide elastic buffering, thereby realizing flexible contact during the gluing process, effectively reducing the extrusion deformation of the battery or the tab. Furthermore, the first glue sticking part and the second glue sticking part of the present invention both have a Z-shaped block structure, which respectively include a connecting part, a horizontal step surface and a glue suction part, wherein the connecting part extends in the vertical direction for connection; the horizontal step part is located below the connecting part and extends in the horizontal direction; the glue suction part is located at one end of the horizontal step part and extends downward in the vertical direction; the horizontal step surface of the second glue sticking part is located above the horizontal step surface of the first glue sticking part; the glue suction parts of the first glue sticking part and the second glue sticking part independently absorb the glue paper, and complete the glue sticking action on the surface of the battery cell and the surface of the tab respectively during one glue sticking action, thereby reducing the glue sticking process and improving the glue sticking efficiency; in the specific glue sticking process, when the first glue sticking part After the adhesive surface at the bottom of the first glue sticking head and the second glue sticking head horizontally absorb and fix the adhesive tape to be pasted, the two are synchronously moved to the top of the battery cell to be glued by the driving component, and when approaching the battery cell downward, the adhesive tape at the bottom of the first glue sticking head can first flexibly contact the surface of the battery cell, and after the adhesive tape is horizontally attached to the surface of the battery cell, the driving component stops outputting power in the vertical direction, and the second glue sticking head of the second glue sticking part continues to move downward from above the first glue sticking head through the power output of the driving motor, and attaches the adhesive tape absorbed by its bottom surface to the surface of the pole ear on one side of the battery cell. At the same time, during the downward movement of the second glue sticking head, the adhesive tape horizontally attached to the surface of the battery cell by the first glue sticking head can be bent downward so that it is attached to the vertical end wall of the battery cell, meeting the process requirements of adhesive tape bending and wrapping. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1This is one of the three-dimensional structural diagrams of the present invention.

[0020] Figure 2 This is the second schematic diagram of the three-dimensional structure of the present invention.

[0021] Figure 3 This is the third schematic diagram of the three-dimensional structure of the present invention.

[0022] Figure 4 This is one of the three-dimensional structural schematic diagrams of the adhesive assembly of the present invention.

[0023] Figure 5 This is the second schematic diagram of the three-dimensional structure of the adhesive assembly of the present invention.

[0024] Figure 6 This is the third schematic diagram of the three-dimensional structure of the adhesive assembly of the present invention.

[0025] Figure 7 This is one of the schematic diagrams of the disassembled structure of the adhesive assembly of the present invention.

[0026] Figure 8 This is the second schematic diagram of the disassembled structure of the adhesive assembly of the present invention.

[0027] Figure 9 This is the third schematic diagram of the disassembled structure of the adhesive assembly of the present invention.

[0028] In the picture:

[0029] 1. Support plate; 2. First linear module; 3. First slide; 4. Second linear module; 5. Second slide; 6. Rotating motor; 7. Glue assembly;

[0030] 71. Support; 72. Rotating axis; 73. Glue-applied support; 74. First connecting rod; 75. First compression spring; 76. Glue-applied slide; 77. Vertical support; 78. First slide rail; 79. First slider; 710. First glue-applied head; 711. Pressure sensor; 712. Motor seat; 713. Drive motor; 714. Drive screw; 715. Connecting sleeve; 716. Second slide rail; 717. Second slider; 718. Screw sleeve; 719. Transfer seat; 720. Second compression spring; 721. Second connecting rod; 722. Second glue-applied head; A. Sleeve space; B. Glue-absorbing surface. DETAILED DESCRIPTION

[0031] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. All other embodiments obtained by ordinary technicians in this field based on the embodiments of the present invention without making any creative efforts shall fall within the scope of protection of the present invention.

[0032] It should be noted that all directional indications such as up, down, left, right, front, back, etc. in the embodiments of the present invention are only used to explain the relative position relationship and movement status of various components in a certain specific posture. If the specific posture changes, the directional indication will also change accordingly.

[0033] In the present invention, unless otherwise specified or limited, the terms "connection" and "fixed" should be understood in a broad sense. For example, "connection" can mean fixed connection, detachable connection, or integration; it can mean mechanical connection or electrical connection; it can mean direct connection or indirect connection through an intermediate medium; it can mean internal communication between two elements or interaction between two elements, unless otherwise specified. For those skilled in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances. Example 1

[0034] like Figures 1 to 3 As shown, the present invention proposes a stepped battery cell automatic adhesive tape device for automatic adhesive tape application on small battery cells, comprising a support plate 1, a drive assembly, a motor support 71, a rotating motor 6, a bearing and a adhesive tape application assembly 7, wherein the drive assembly is arranged on the support plate 1, and the drive assembly outputs power in the vertical and horizontal directions; the motor support 71 is connected to the output end of the drive assembly, and is driven by the drive assembly to move in the vertical and horizontal directions; the rotating motor 6 is connected to the motor support 71, and the output end of the rotating motor 6 is arranged downward, and outputs rotational power in the horizontal direction; the bearing is arranged below the rotating motor 6, and is connected to the output end of the rotating motor 6, and is driven by the rotating motor 6 to rotate in the horizontal plane; the adhesive tape application assembly 7 includes a first adhesive tape member and a second adhesive tape member. Parts, the first glue part and the second glue part are arranged at intervals below the supporting part; the first glue part and the second glue part are respectively movably connected to the supporting part in the vertical direction, and maintain elastic buffering in the vertical direction by elastic force; the lower parts of the first glue part and the second glue part extend along a Z-shaped path, respectively, and respectively include a connecting part, a horizontal step surface and a glue suction part, wherein the connecting part extends in the vertical direction for connection; the horizontal step part is located below the connecting part and extends in the horizontal direction; the glue suction part is located at one end of the horizontal step part and extends downward in the vertical direction; the horizontal step surface of the second glue part is located above the horizontal step surface of the first glue part; the glue suction parts of the first glue part and the second glue part independently absorb adhesive paper, and complete the stepped linkage gluing through the mutual contact of the horizontal step surfaces of the two during the gluing process. Example 2

[0035] like Figures 1 to 4As shown, as an embodiment of the present invention, the driving assembly of the present invention includes a first linear module 2, a first slide 3, a second linear module 4 and a second slide 5, wherein the first linear module 2 is vertically arranged on the support plate 1 and outputs power in the vertical direction; the first slide 3 is connected to the output end of the first linear module 2, and is driven by the first linear module 2 to move up and down; the first slide 3 is an L-shaped seat body, one end of which is connected to the output end of the first linear module 2, and the other end extends horizontally outward perpendicular to the first linear module 2; the second linear module 4 is arranged on the side wall of the other end of the first slide 3, and outputs power in the horizontal direction; the second slide 5 is connected to the output end of the second linear module 4, and is driven by the second linear module 4 to move linearly. Example 3

[0036] like Figures 4 to 6 As shown, as an embodiment of the present invention, the supporting member of the present invention includes a rotating shaft 72, a rubber support 73 and a vertical support 77, wherein the rotating shaft 72 is arranged below the motor support 71 and is connected to the output end of the rotating motor 6; the rubber support 73 is horizontally connected to the bottom of the rotating shaft 72 and rotates with the rotating shaft 72; the vertical support 77 is vertically connected to the bottom of the rubber support 73, dividing the bottom of the rubber support 73 into two installation spaces, and the vertical support 77 is located on the side walls of the two installation spaces and is respectively provided with a first slide rail 78, the first slide rail 78 extends in the vertical direction and is movably mounted with a first slider 79; the first rubber part and the second rubber part are respectively located in the two installation spaces of the vertical support 77 and are respectively connected to the first slider 79, and the movable guidance in the vertical direction is realized by the connection between the first slider 79 and the first slide rail 78. Example 4

[0037] like Figures 7 to 9 As shown, as an embodiment of the present invention, the first glue-applying part of the present invention includes a first connecting rod 74, a first compression spring 75, a glue-applying slide 76 and a first glue-applying head 710, wherein the glue-applying slide 76 is arranged below the glue-applying support 73 and is located in the installation space on one side of the vertical support 77, and is fixedly connected to the first slider 79; the first connecting rod 74 includes at least two, at least two first connecting rods 74 pass through the glue-applying slide 76 in the vertical direction and are connected to the glue-applying support 73, and slide freely in the glue-applying slide 76; the first compression spring 75 is vertically connected between the glue-applying support 73 and the glue-applying slide 76, and is used to provide elastic buffering for the glue-applying slide 76 in the vertical direction; the first glue-applying head 710 is vertically connected to the bottom of the glue-applying slide 76.

[0038] The first glue-applying head 710 is a Z-shaped block structure, and its vertically arranged connecting portion is connected to the bottom of the glue-applying slide 76. A horizontal step surface extending horizontally is provided on one side below the connecting portion. The bottom of the outer end of the horizontal step surface is vertically connected to a glue-absorbing portion. The bottom of the glue-absorbing portion is a horizontal glue-absorbing surface B. At least two vacuum suction holes are arranged on the glue-absorbing surface B, and the adhesive tape is fixed by vacuum negative pressure adsorption. Example 5

[0039] like Figures 7 to 9 As shown, as an embodiment of the present invention, the second glue-applying member of the present invention includes a driving sensor, a sliding guide and a second glue-applying head 722, wherein the driving sensor is located in the installation space on the other side of the vertical support 77 and is connected to the side wall of the vertical support 77; the sliding guide is arranged below the driving sensor and is connected to the output end of the driving sensor, and is driven to move up and down by the driving sensor, and the sliding guide is connected and fixed to the first slider 79 on the other side of the vertical support 77, and is guided and limited by the first slider 79; the second glue-applying head 722 is connected to the bottom of the sliding guide.

[0040] The driving sensing component includes a pressure sensor 711, a motor seat 712, a driving motor 713 and a driving screw 714, wherein the pressure sensor 711 is arranged in the installation space on the other side of the vertical support 77 and is connected to the bottom of the rubber support 73; the motor seat 712 is arranged at an interval below the pressure sensor 711 and is connected to the side wall of the vertical support 77; the driving motor 713 is arranged between the pressure sensor 711 and the motor seat 712, and is connected to the pressure sensor 711, and the output end is arranged downward; the driving screw 714 is vertically connected to the output end of the driving motor 713, and extends downward through the motor seat 712.

[0041] The sliding guide includes a connecting sleeve 715, a second slide rail 716, a second slider 717, a screw sleeve 718, a transfer seat 719, a second compression spring 720 and a second connecting rod 721, wherein the connecting sleeve 715 is an open structure sleeve, which is arranged below the motor seat 712, and a sleeve space A is provided in the connecting sleeve 715; second slide rails 716 are respectively provided on the two side walls of the sleeve space A in the vertical direction, and the second slider 717 is slidably connected to the second slide rail 716; the transfer seat 719 is provided in the sleeve space A, the transfer seat 719 is connected and fixed to the second slider 717, and the transfer seat 719 is close to the vertical support 77 One side wall is connected and fixed to the first slider 79; the screw sleeve 718 is inserted and fixed on the top of the transfer seat 719, and is sleeved on the driving screw 714. The screw sleeve 718 is threadedly connected to the driving screw 714. When the driving screw 714 rotates, the screw sleeve 718 is pushed to drive the transfer seat 719 to move up and down in the sleeve space A; the second connecting rod 721 is inserted vertically upward from the bottom to the connecting sleeve 715, and can be slidably inserted into the transfer seat 719; the second compression spring 720 includes at least two, and at least two second compression springs 720 are vertically connected between the bottom of the transfer seat 719 and the connecting sleeve 715 to provide elastic buffering.

[0042] The second glue-applying head 722 is arranged at the bottom of the connecting sleeve 715. The second glue-applying head 722 is a Z-shaped block structure. Its vertically arranged connecting part is connected to the bottom of the connecting sleeve 715. A horizontal step surface extending horizontally is provided on one side below the connecting part. The outer end bottom of the horizontal step surface is vertically connected to the glue-absorbing part. The bottom of the glue-absorbing part is a horizontal glue-absorbing surface B. At least two vacuum suction holes are arranged on the glue-absorbing surface B, and the adhesive tape is fixed by vacuum negative pressure adsorption. Example 6

[0043] As an embodiment of the present invention, the present invention discloses a battery cell assembly machine with a stepped battery cell automatic adhesive tape device.

[0044] Furthermore, the present invention designs a stepped glue-taping method with a height difference structure, which simultaneously achieves the attachment of glue tape to the battery cell body and the tab surface in a single action, reducing the glue-taping process and effectively improving the glue-taping efficiency. It also achieves flexible contact with the battery cell or tab and real-time pressure sensing during the glue-taping process, effectively reducing the extrusion deformation of the battery cell or tab during the glue-taping process, and ensuring the glue-taping quality. The present invention aims to provide a battery cell glue-taping process section for application in the field of new energy batteries, belonging to a battery cell automatic glue-taping device, which functions to automatically attach glue tape to the battery cell and its tab surface. Specifically, the present invention uses a support plate as a bearing structure as a whole, and a driving assembly is provided on the side wall of the support plate. The driving assembly provides linear power in the vertical direction through a first linear module and provides linear power in the horizontal direction through a second linear module to control the movement of the drive motor support to achieve position movement during the gluing process; at the same time, the rotary motor arranged on the motor support provides rotational power in the horizontal plane to achieve angular rotation adjustment during the gluing process; the special feature is that the gluing assembly of the present invention includes a first gluing part and a second gluing part, which are respectively located in two installation spaces separated by a vertical support below the gluing support. The first gluing part is movably connected to the gluing support above it, and is driven by the vertical power provided by the first linear module to approach the battery cell or the pole ear to complete the gluing action. The second gluing part itself is integrated with a power output structure along the vertical direction. After it is driven by the first linear module to approach the battery cell or the pole ear, it outputs power through its internal power structure to continue downward to complete the gluing action. Specifically, the first glue-sticking part of the present invention uses the glue-sticking slide as a connecting bearing structure, and the side wall of the glue-sticking slide is slidably connected in the vertical direction with the first slide rail on the side wall of the vertical support through the first sliding block. The top of the glue-sticking slide is provided with a horizontal extension part, and is connected to the glue-sticking support through a first connecting rod vertically penetrated from bottom to top. The first connecting rod is movably connected to the glue-sticking slide to maintain the state of free sliding of the glue-sticking slide in the vertical direction, and at the same time, the glue-sticking slide is limited by the cap body at its bottom end to prevent it from falling; in addition, the glue-sticking slide and the glue-sticking support are connected by a first compression spring. After being subjected to an upward reaction force during glue-sticking, the first compression spring provides elastic buffering to avoid deformation of the battery cell or the ear caused by excessive extrusion during the glue-sticking process; further, a pressure sensor can also be provided between the glue-sticking slide and the glue-sticking support to sense and detect the upward reaction force transmitted during glue-sticking in real time, so as to facilitate real-time adjustment and control of the glue-sticking pressure.The second glue-sticking part of the present invention includes a driving sensor part, a sliding guide part and a second glue-sticking head. The motor seat of the driving sensor part is horizontally connected to the side wall on the other side of the vertical support. A pressure sensor is arranged above the motor seat, and a driving motor is arranged between the two. The top of the driving motor is connected to the pressure sensor, and the bottom output end is connected to a driving screw rod; the sliding guide part uses the transfer seat as a sliding structure, and the side of the transfer seat close to the vertical support is slidably connected to the vertical support through the first slider and the first slide rail; at the same time, a connecting sleeve is provided under the transfer seat, and is located in the sleeve space of the connecting sleeve, and is slidably connected to the connecting sleeve in the vertical direction through the second slide rail and the second slider; in addition, the transfer seat is connected to the vertical support through the screw sleeve inserted at the top thereof The driving screw is threadedly connected, and the rotational power output by the driving motor is converted into linear power in the vertical direction through the threaded connection between the screw sleeve and the driving screw, so as to drive the transfer seat to move up and down along the first slide rail, while the transfer seat drives the connecting sleeve to move up and down; at the same time, the transfer seat and the connecting sleeve are connected by the second connecting rod and the second compression spring; the above dual active connection method of the transfer seat and the vertical support, and the connecting sleeve and the transfer seat effectively increases the active path in the vertical direction. At the same time, during the process of the transfer seat driving the connecting sleeve to apply glue, the second compression spring arranged between the two is used to provide elastic buffering, thereby realizing flexible contact during the gluing process, effectively reducing the extrusion deformation of the battery or the tab. Furthermore, the first glue sticking part and the second glue sticking part of the present invention both have a Z-shaped block structure, which respectively include a connecting part, a horizontal step surface and a glue suction part, wherein the connecting part extends in the vertical direction for connection; the horizontal step part is located below the connecting part and extends in the horizontal direction; the glue suction part is located at one end of the horizontal step part and extends downward in the vertical direction; the horizontal step surface of the second glue sticking part is located above the horizontal step surface of the first glue sticking part; the glue suction parts of the first glue sticking part and the second glue sticking part independently absorb the glue paper, and complete the glue sticking action on the surface of the battery cell and the surface of the tab respectively during one glue sticking action, thereby reducing the glue sticking process and improving the glue sticking efficiency; in the specific glue sticking process, when the first glue sticking part After the adhesive surface at the bottom of the first glue sticking head and the second glue sticking head horizontally absorb and fix the adhesive tape to be pasted, the two are synchronously moved to the top of the battery cell to be glued by the driving component, and when approaching the battery cell downward, the adhesive tape at the bottom of the first glue sticking head can first flexibly contact the surface of the battery cell, and after the adhesive tape is horizontally attached to the surface of the battery cell, the driving component stops outputting power in the vertical direction, and the second glue sticking head of the second glue sticking part continues to move downward from above the first glue sticking head through the power output of the driving motor, and attaches the adhesive tape absorbed by its bottom surface to the surface of the pole ear on one side of the battery cell. At the same time, during the downward movement of the second glue sticking head, the adhesive tape horizontally attached to the surface of the battery cell by the first glue sticking head can be bent downward so that it is attached to the vertical end wall of the battery cell, meeting the process requirements of adhesive tape bending and wrapping.

[0045] The embodiments of the present invention are merely to introduce specific implementation methods and are not intended to limit the scope of protection. Persons skilled in the art may make certain modifications inspired by these embodiments. Therefore, any equivalent changes or modifications made in accordance with the scope of the present invention are within the scope of the patent claims of the present invention.

Claims

1. A stepped battery cell automatic adhesive tape device for automatic adhesive tape application on small battery cells, comprising a support plate (1), characterized in that: It also includes a drive assembly, a motor support (71), a rotating motor (6), a bearing and a glue assembly (7), wherein: The driving assembly is arranged on the support plate (1), and the driving assembly outputs power in the vertical direction and the horizontal direction; The motor support (71) is connected to the output end of the driving component and is driven by the driving component to move in the vertical direction and the horizontal direction; The rotating motor (6) is connected to the motor support (71), and the output end of the rotating motor (6) is arranged downward and outputs rotating power in the horizontal direction; The bearing member is arranged below the rotating motor (6) and is connected to the output end of the rotating motor (6), and is driven by the rotating motor (6) to rotate in a horizontal plane; The adhesive component (7) comprises a first adhesive part and a second adhesive part, wherein the first adhesive part and the second adhesive part are arranged below the carrier at intervals; the first adhesive part and the second adhesive part are respectively movably connected to the carrier in the vertical direction, and maintain elastic buffering in the vertical direction through elastic force; The lower parts of the first and second adhesive parts extend along a Z-shaped path respectively, and respectively include a connecting part, a horizontal step surface and a glue absorbing part, wherein the connecting part extends in the vertical direction for connection; the horizontal step part is located below the connecting part and extends in the horizontal direction; the glue absorbing part is located at one end of the horizontal step part and extends downward in the vertical direction; the horizontal step surface of the second adhesive part is located above the horizontal step surface of the first adhesive part; the glue absorbing parts of the first and second adhesive parts independently absorb adhesive paper, and complete the stepped linkage adhesive bonding through the mutual contact of the horizontal step surfaces of the two during the adhesive bonding process.

2. The step-type automatic adhesive tape device for battery cells according to claim 1, characterized in that: The driving assembly comprises a first linear module (2), a first slide (3), a second linear module (4) and a second slide (5), wherein the first linear module (2) is vertically arranged on the support plate (1) and outputs power in the vertical direction; the first slide (3) is connected to the output end of the first linear module (2) and is driven by the first linear module (2) to move up and down; the first slide (3) is an L-shaped seat body, one end of which is connected to the output end of the first linear module (2) and the other end extends horizontally outward perpendicular to the first linear module (2); the second linear module (4) is arranged on the side wall of the other end of the first slide (3) and outputs power in the horizontal direction; the second slide (5) is connected to the output end of the second linear module (4) and is driven by the second linear module (4) to move linearly.

3. The step-type automatic adhesive tape device for battery cells according to claim 2, characterized in that: The bearing member includes a rotating shaft (72), a rubber support (73) and a vertical support (77), wherein the rotating shaft (72) is arranged below the motor support (71) and is connected to the output end of the rotating motor (6); the rubber support (73) is horizontally connected to the bottom of the rotating shaft (72) and rotates with the rotating shaft (72); the vertical support (77) is vertically connected to the bottom of the rubber support (73), dividing the bottom of the rubber support (73) into two installation spaces, and the vertical support (77) is provided with a first slide rail (78) on the side walls of the two installation spaces, the first slide rail (78) extends in the vertical direction and is movably sleeved with a first slider (79); the first rubber member and the second rubber member are respectively located in the two installation spaces of the vertical support (77) and are respectively connected to the first slider (79), and the movable guidance in the vertical direction is realized by the connection between the first slider (79) and the first slide rail (78).

4. The step-type automatic adhesive tape device for battery cells according to claim 3, characterized in that: The first glue sticking part includes a first connecting rod (74), a first compression spring (75), a glue sticking slide (76) and a first glue sticking head (710), wherein the glue sticking slide (76) is arranged below the glue sticking support (73) and is located in the installation space on one side of the vertical support (77), and is fixedly connected to the first slider (79); the first connecting rod (74) includes at least two, and the at least two first connecting rods (74) pass through the glue sticking slide (76) in the vertical direction and are connected to the glue sticking support (73) and slide freely in the glue sticking slide (76); the first compression spring (75) is vertically connected between the glue sticking support (73) and the glue sticking slide (76) to provide elastic buffering for the glue sticking slide (76) in the vertical direction; the first glue sticking head (710) is vertically connected to the bottom of the glue sticking slide (76).

5. The step-type automatic adhesive tape device for battery cells according to claim 4, characterized in that: The first glue sticking head (710) is a Z-shaped block structure, and its vertically arranged connecting portion is connected to the bottom of the glue sticking slide (76). A horizontal step surface extending horizontally is provided on one side below the connecting portion. The bottom of the outer end of the horizontal step surface is vertically connected to a glue sucking portion. The bottom of the glue sucking portion is a horizontal glue sucking surface (B). At least two vacuum suction holes are arranged on the glue sucking surface (B), and the adhesive tape is fixed by vacuum negative pressure adsorption.

6. The step-type automatic adhesive tape device for battery cells according to claim 4, characterized in that: The second adhesive component includes a driving sensor component, a sliding guide component and a second adhesive head (722), wherein the driving sensor component is located in the installation space on the other side of the vertical support (77) and is connected to the side wall of the vertical support (77); the sliding guide component is arranged below the driving sensor component and is connected to the output end of the driving sensor component, and is driven to move up and down by the driving sensor component, and the sliding guide component is connected and fixed to the first slider (79) on the other side of the vertical support (77), and is guided and limited by the first slider (79); the second adhesive head (722) is connected to the bottom of the sliding guide component.

7. The step-type automatic adhesive tape device for battery cells according to claim 6, characterized in that: The driving sensing component includes a pressure sensor (711), a motor seat (712), a driving motor (713) and a driving screw (714), wherein the pressure sensor (711) is arranged in the installation space on the other side of the vertical support (77) and is connected to the bottom of the rubber support (73); the motor seat (712) is arranged below the pressure sensor (711) and is connected to the side wall of the vertical support (77); the driving motor (713) is arranged between the pressure sensor (711) and the motor seat (712), and is connected to the pressure sensor (711), with the output end arranged downward; the driving screw (714) is vertically connected to the output end of the driving motor (713) and extends downward through the motor seat (712).

8. The step-type automatic adhesive tape device for battery cells according to claim 7, characterized in that: The sliding guide comprises a connecting sleeve (715), a second slide rail (716), a second slider (717), a screw sleeve (718), a transfer seat (719), a second compression spring (720) and a second connecting rod (721), wherein the connecting sleeve (715) is an open-structured sleeve, which is arranged below the motor seat (712), and a sleeve space (A) is provided in the connecting sleeve (715); second slide rails (716) are provided on both side walls of the sleeve space (A) in a vertical direction, and a second slider (717) is slidably connected to the second slide rail (716); the transfer seat (719) is arranged in the sleeve space (A), the transfer seat (719) is connected and fixed to the second slider (717), and the transfer seat (719) is close to the vertical support. One side wall of (77) is connected and fixed to the first slider (79); the screw sleeve (718) is inserted and fixed on the top of the transfer seat (719) and is sleeved on the driving screw (714), the screw sleeve (718) is threadedly connected to the driving screw (714), and when the driving screw (714) rotates, it pushes the screw sleeve (718) to drive the transfer seat (719) to move up and down in the sleeve space (A); the second connecting rod (721) is inserted vertically upward from the bottom into the connecting sleeve (715) and can be slidably inserted into the transfer seat (719); the second compression spring (720) includes at least two, and at least two second compression springs (720) are vertically connected between the bottom of the transfer seat (719) and the connecting sleeve (715) to provide elastic buffering.

9. The step-type automatic adhesive tape device for battery cells according to claim 8, characterized in that: The second glue sticking head (722) is arranged at the bottom of the connecting sleeve (715). The second glue sticking head (722) is a Z-shaped block structure. Its vertically arranged connecting portion is connected to the bottom of the connecting sleeve (715). A horizontal step surface extending horizontally is provided on one side below the connecting portion. The bottom of the outer end of the horizontal step surface is vertically connected to the glue sucking portion. The bottom of the glue sucking portion is a horizontal glue sucking surface (B). At least two vacuum suction holes are arranged on the glue sucking surface (B), and the adhesive tape is fixed by vacuum negative pressure adsorption.

10. A battery cell assembly machine comprising the stepped battery cell automatic adhesive tape device according to claim 1.

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