Soft package battery cell lamination equipment with auxiliary positioning function

Abstract

The invention discloses soft package battery cell lamination equipment with an auxiliary positioning function, and belongs to the field of battery processing equipment. The problem that stacked electrode plates are prone to deviation due to vibration is solved. Through linkage cooperation of a first magnetic block, a second magnetic block and a third magnetic block, a first air bag and a second air bag are driven to expand and contract periodically, that is, the expanded second air bag is used for jacking a positioning rod and is matched with a through hole to position and guide a movable plate, so that the electrode suction precision is effectively improved, and the electrode suction efficiency is improved. On the other hand, the stacked electrode plates are pressed through the pressing rod, so that the stability and compactness of the electrode plates are guaranteed, the phenomenon that the electrode plates are loosened and deviated due to vibration generated during equipment operation is avoided, and the battery cell lamination effect is effectively improved.

Description

Technical Field

[0001] The present invention relates to the field of battery processing equipment, and in particular to soft-pack battery core stacking equipment with auxiliary positioning function. Background Art

[0002] Battery cell stacking equipment is a key equipment for executing the stacking process when producing lithium batteries or other types of batteries. The stacking process is the process of stacking the positive electrode, negative electrode and separator of the battery in a certain order and number of layers to form the core cell of the battery. However, the stacking efficiency of existing stacking equipment is low, and the membrane electrode sheet is very thin and easy to deform. Therefore, in the process of stacking, uncontrollable offset and deformation are very likely to occur, affecting the neatness of the stacking of the membrane electrode sheet.

[0003] In response to the above problems, an existing patent provides a membrane electrode sheet stacking device (publication number: CN115783860A). This patent uses a material sorting device to sort the membrane electrode sheets, thereby achieving neat stacking of the membrane electrode sheets, and uses a material receiving and pushing device to connect the stacked membrane electrode sheets, and pushes the stack of membrane electrode sheet materials that have completed the stacking work, thereby improving the efficiency of the stacking work and the quality of the stacking work.

[0004] However, in the actual use of the above technical solution, the material sorting device will inevitably vibrate when sorting the sheets. Under the action of vibration, the stacked electrode sheets are prone to shift, resulting in poor quality of the final product and difficulty in ensuring the compactness of the battery stack.

[0005] In view of the above technical defects, a solution is now proposed. Summary of the invention

[0006] The purpose of the present invention is to provide a soft-pack battery cell stacking device with an auxiliary positioning function to solve the technical defects proposed by the background technology.

[0007] The purpose of the present invention can be achieved by the following technical solution: a soft-pack battery cell stacking device with auxiliary positioning function comprises a fixed frame, a movable plate is movably installed in the fixed frame, a suction cup is fixedly installed at the bottom of the movable plate, and a stacking assembly is movably installed in the fixed frame;

[0008] The lamination assembly includes a connection block, a positioning rod, an airbag 1 and an airbag 2. The connection block is fixedly mounted on both sides of the movable plate. A through hole is opened on the connection block. The positioning rod is movably mounted in the fixed frame. The positions of the positioning rod and the through hole are adapted.

[0009] Airbag one is fixedly installed in the fixing frame, airbag two is fixedly installed at the bottom of the positioning rod, airbag one is fixedly connected with airbag two through a pipeline, a pressure rod is movably installed in the fixing frame, a positioning groove is opened at the center of the fixing frame, and the pressure rod is located on both sides of the positioning groove.

[0010] Preferably, a fixing box is fixedly installed in the fixing frame, the fixing box is located at both sides of the positioning groove, fixing tubes are fixedly installed on both sides of the fixing box, the airbag 2 is fixedly installed in the fixing tube, and the positioning rod is movably installed in the fixing tube.

[0011] Preferably, a magnetic block 1 is fixedly installed on one side of the movable plate, a magnetic block 2 is movably installed in the fixed frame, the magnetic block 1 is located on one side of the fixed box, the airbag 1 is fixedly installed on the bottom of the magnetic block 2, and a spring is fixedly installed in the airbag 1.

[0012] Preferably, a magnetic block three is movably installed in the fixing frame, a vertical rod is fixedly installed at the bottom of the magnetic block three, a spring is sleeved on the vertical rod, two ends of the spring are respectively fixedly connected to the magnetic block three and the fixing frame, and a connecting rod is fixedly installed at the bottom of the vertical rod.

[0013] Preferably, an adjusting rod is fixedly installed at the end of the connecting rod, a cross bar is fixedly installed at the bottom of the pressure rod, a rotating block is movably installed on the adjusting rod, the rotating block is fixedly connected to the cross bar, a rotating groove is opened in the fixed frame, a rotating rod is fixedly installed in the rotating groove, and the pressure rod is movably connected to the rotating rod.

[0014] Preferably, a crossbeam is fixedly installed in the fixed frame, a rotating screw is movably installed in the crossbeam, a movable nut is movably installed on the rotating screw through a thread, a motor is fixedly installed on one side of the fixed frame, and the output end of the motor is fixedly connected to the rotating screw.

[0015] Preferably, an electric push rod is fixedly mounted on the movable nut, a connecting pipe is fixedly mounted on the output end of the electric push rod, the bottom of the connecting pipe is fixedly connected to the movable plate, and the connecting blocks are located on both sides of the connecting pipe.

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

[0017] (1) The present invention uses a connecting block and a positioning rod in combination. In actual use, the moving plate drives the suction cup to absorb the electrode, and the moving plate moves the electrode to the positioning groove for stacking. In the process of absorbing the electrode, the airbag 1 is gradually squeezed, and the gas in the airbag 1 enters the airbag 2. At this time, the airbag 2 expands, and the positioning rod is lifted by the expanded airbag 2. At this time, the top of the positioning rod is inserted into the through hole on the connecting block, and the positioning rod is used to position and guide the moving plate, thereby effectively improving the accuracy of absorbing the electrode and avoiding deviation resulting in poor subsequent lamination effect;

[0018] (2) The present invention uses a movable plate and a pressure rod in combination. The movable plate moves the electrode to the positioning groove for stacking. When the movable plate moves to above the positioning groove, the pressure rod gradually moves away from the positioning groove to avoid obstruction to the movable plate. When the movable plate leaves the positioning groove, the pressure rod gradually resets and presses the stacked electrode sheets, thereby ensuring the stability and tightness of the electrode sheets, avoiding the vibration generated during the operation of the equipment that causes the electrode sheets to become loose and offset, and effectively improving the battery cell stacking effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The present invention will be further described below in conjunction with the accompanying drawings;

[0020] Figure 1 It is a schematic diagram of the structure of the present invention;

[0021] Figure 2 It is a structural schematic diagram of the fixing frame in the present invention;

[0022] Figure 3 It is a structural schematic diagram of the crossbeam in the present invention;

[0023] Figure 4 It is a structural schematic diagram of the movable plate in the present invention;

[0024] Figure 5 It is a schematic diagram of the structure of the airbag of the present invention;

[0025] Figure 6 It is a structural schematic diagram of the pressure rod in the present invention;

[0026] Figure 7 It is a structural schematic diagram of the magnetic block three in the present invention.

[0027] Legend: 1. Fixed frame; 101. Moving plate; 102. Positioning slot; 103. Fixed box; 2. Lamination assembly; 201. Connecting block; 202. Positioning rod; 203. Airbag 1; 204. Airbag 2; 205. Through hole; 206. Pressure rod; 207. Fixed tube; 208. Magnetic block 1; 209. Magnetic block 2; 210. Magnetic block 3; 211. Vertical rod; 212. Connecting rod; 213. Adjusting rod; 214. Cross rod; 215. Rotating block; 216. Rotating slot; 217. Rotating rod; 3. Cross beam; 301. Rotating screw; 302. Connecting tube. DETAILED DESCRIPTION

[0028] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0029] Embodiment 1:

[0030] See also Figure 1 - Figure 5 As shown, this embodiment is a soft-pack battery cell stacking device with an auxiliary positioning function, including a fixed frame 1, a movable plate 101 is movably installed in the fixed frame 1, a suction cup is fixedly installed at the bottom of the movable plate 101, wherein the suction cup is fixedly connected to a vacuum device, which is used to generate attraction in the suction cup after the suction cup is attached to the electrode, and fix the electrode by air pressure, the type of the vacuum device, a stacking assembly 2 is movably installed in the fixed frame 1, a crossbeam 3 is fixedly installed in the fixed frame 1, a rotating screw 301 is movably installed in the crossbeam 3, a movable nut is movably installed on the rotating screw 301 through a thread, a motor is fixedly installed on one side of the fixed frame 1, and the output end of the motor is fixedly connected to the rotating screw 301.

[0031] An electric push rod is fixedly installed on the moving nut, and a connecting tube 302 is fixedly installed on the output end of the electric push rod. The bottom of the connecting tube 302 is fixedly connected to the moving plate 101, and the connecting blocks 201 are located on both sides of the connecting tube 302. The rotating screw rod 301 and the moving nut form a screw transmission structure through a thread. The rotating screw rod 301 is driven by a motor to rotate, thereby driving the moving nut to move on the rotating screw rod 301. The thread is not drawn in the figure.

[0032] The lamination assembly 2 includes a connecting block 201, a positioning rod 202, an airbag 1 203 and an airbag 2 204. The connecting block 201 is fixedly installed on both sides of the movable plate 101. A through hole 205 is opened on the connecting block 201. The positioning rod 202 is movably installed in the fixed frame 1. The positions of the positioning rod 202 and the through hole 205 are adapted to each other. The airbag 1 203 is fixedly installed in the fixed frame 1. The airbag 2 204 is fixedly installed at the bottom of the positioning rod 202. The airbag 1 203 is fixedly connected to the airbag 2 204 through a pipeline.

[0033] A fixed box 103 is fixedly installed in the fixed frame 1, and the fixed box 103 is located on both sides of the positioning groove 102. Fixed tubes 207 are fixedly installed on both sides of the fixed box 103, wherein the positive electrode sheet and the negative electrode sheet are respectively placed in the fixed box 103, the airbag 2 204 is fixedly installed in the fixed tube 207, the positioning rod 202 is movably installed in the fixed tube 207, a magnetic block 1 208 is fixedly installed on one side of the movable plate 101, and a magnetic block 2 209 is movably installed in the fixed frame 1, wherein when the magnetic block 1 208 and the magnetic block 2 209 are relatively overlapped, the magnetic block 1 208 generates a repulsive force on the magnetic block 2 209.

[0034] That is, when the movable plate 101 moves to the fixed box 103, the magnet block 1 208 and the magnet block 2 209 are opposite to each other. At this time, the movable plate 101 moves downward, and the repulsive force of the magnet block 1 208 on the magnet block 2 209 gradually increases, thereby pushing the magnet block 2 209 to move downward, and squeezing the airbag 1 203 in turn. The magnet block 1 208 is located on one side of the fixed box 103, and the airbag 1 203 is fixedly installed at the bottom of the magnet block 209, and a spring is fixedly installed in the airbag 1 203.

[0035] That is, the sucker is driven by the moving plate 101 to suck the electrode, and the electrode is moved to the positioning groove 102 by the moving plate 101 for stacking. In the process of sucking the electrode, the airbag 1 203 is gradually squeezed, and the gas in the airbag 1 203 enters the airbag 2 204. At this time, the airbag 204 expands, and the positioning rod 202 is lifted by the expanded airbag 204. At this time, the top of the positioning rod 202 is inserted into the through hole 205 on the connecting block 201, and the positioning rod 202 is used to position and guide the moving plate 101, so as to effectively improve the accuracy of sucking the electrode and avoid the deviation that leads to poor subsequent lamination effect.

[0036] Embodiment 2:

[0037] See also Figure 6 - Figure 7 As shown, the present invention also includes a pressure rod 206, which is movably installed in the fixed frame 1. A positioning groove 102 is opened at the center of the fixed frame 1, and the pressure rod 206 is located on both sides of the positioning groove 102. A magnetic block three 210 is movably installed in the fixed frame 1, and a vertical rod 211 is fixedly installed at the bottom of the magnetic block three 210. A spring is sleeved on the vertical rod 211, and both ends of the spring are respectively fixedly connected to the magnetic block three 210 and the fixed frame 1, and a connecting rod 212 is fixedly installed at the bottom of the vertical rod 211.

[0038] An adjusting rod 213 is fixedly installed at the end of the connecting rod 212, a cross bar 214 is fixedly installed at the bottom of the pressure rod 206, and a rotating block 215 is movably installed on the adjusting rod 213. The rotating block 215 is fixedly connected to the cross bar 214. A rotating groove 216 is opened in the fixed frame 1, and a rotating rod 217 is fixedly installed in the rotating groove 216. The pressure rod 206 is movably connected to the rotating rod 217. When the movable plate 101 moves to above the positioning groove 102, an attraction is generated between the magnetic block 1 208 and the magnetic block 3 210, thereby driving the magnetic block 3 210 to move upward, and then driving the vertical rod 211 and the connecting rod 212 to move upward. At this time, the pressure rod 206 rotates in the rotating groove 216, and its top moves away from the positioning groove 102.

[0039] Similarly, when magnetic block 1 208 and magnetic block 209 are separated, the vertical rod 211 is reset under the action of the spring, thereby driving the pressure rod 206 to rotate, and its top end moves toward the positioning groove 102 until it contacts the top of the electrode sheet in the positioning groove 102, thereby ensuring that the stacked electrode sheets are always stable.

[0040] That is, the electrodes are moved to the positioning groove 102 for stacking by the movable plate 101. When the movable plate 101 moves above the positioning groove 102, the pressure rod 206 gradually moves away from the positioning groove 102 to avoid obstruction to the movable plate 101. When the movable plate 101 leaves the positioning groove 102, the pressure rod 206 gradually resets and presses the stacked electrode sheets to ensure the stability and tightness of the electrode sheets, avoid the vibration generated during the operation of the equipment causing the electrode sheets to loosen and shift, and effectively improve the battery cell stacking effect.

[0041] In combination with Example 1 and Example 2, through the linkage cooperation of magnetic block 1 208, magnetic block 209 and magnetic block 3 210, airbag 1 203 and airbag 2 204 are driven to expand and contract periodically, that is, the positioning rod 202 is lifted by the expanded airbag 204, and cooperates with the through hole 205 to position and guide the movable plate 101, thereby effectively improving the accuracy of electrode absorption and avoiding deviation leading to poor subsequent stacking effect. On the other hand, the stacked electrode sheets are pressed by the pressure rod 206 to ensure the stability and tightness of the electrode sheets, avoid the vibration generated during the operation of the equipment to cause the electrode sheets to loosen and deviate, and effectively improve the battery cell stacking effect.

[0042] The above contents are merely examples and explanations of the structure of the present invention. The technicians in this technical field may make various modifications or additions to the specific embodiments described or replace them in a similar manner. As long as they do not deviate from the structure of the invention or exceed the scope defined by the claims, they should all fall within the protection scope of the present invention.

[0043] In the description of this specification, the description with reference to the terms "one embodiment", "example", "specific example", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0044] The preferred embodiments of the present invention disclosed above are only used to help explain the present invention. The preferred embodiments do not describe all the details in detail, nor do they limit the invention to only specific implementation methods. Obviously, many modifications and changes can be made according to the content of this specification. This specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the present invention, so that those skilled in the art can understand and use the present invention well. The present invention is limited only by the claims and their full scope and equivalents.

Claims

1. A soft pack battery cell stacking device with auxiliary positioning function, comprising a fixing frame (1), characterized in that: A movable plate (101) is movably mounted in the fixed frame (1), a suction cup is fixedly mounted on the bottom of the movable plate (101), and a lamination assembly (2) is movably mounted in the fixed frame (1); The lamination assembly (2) comprises a connection block (201), a positioning rod (202), an airbag 1 (203) and an airbag 2 (204); the connection block (201) is fixedly mounted on both sides of the movable plate (101); a through hole (205) is provided on the connection block (201); the positioning rod (202) is movably mounted in the fixed frame (1); and the positioning rod (202) and the through hole (205) are matched in position; The airbag 1 (203) is fixedly installed in the fixing frame (1), the airbag 2 (204) is fixedly installed at the bottom of the positioning rod (202), the airbag 1 (203) is fixedly connected to the airbag 2 (204) through a pipeline, a pressure rod (206) is movably installed in the fixing frame (1), a positioning groove (102) is opened at the center of the fixing frame (1), and the pressure rod (206) is located on both sides of the positioning groove (102).

2. The soft pack battery cell stacking device with auxiliary positioning function according to claim 1 is characterized in that: A fixing box (103) is fixedly installed in the fixing frame (1), the fixing box (103) is located on both sides of the positioning groove (102), fixing tubes (207) are fixedly installed on both sides of the fixing box (103), the airbag 2 (204) is fixedly installed in the fixing tube (207), and the positioning rod (202) is movably installed in the fixing tube (207).

3. The soft pack battery cell stacking device with auxiliary positioning function according to claim 2, characterized in that: A magnetic block 1 (208) is fixedly mounted on one side of the movable plate (101), a magnetic block 2 (209) is movably mounted in the fixed frame (1), the magnetic block 1 (208) is located on one side of the fixed box (103), the airbag 1 (203) is fixedly mounted on the bottom of the magnetic block 2 (209), and a spring is fixedly mounted in the airbag 1 (203).

4. The soft pack battery cell stacking device with auxiliary positioning function according to claim 3 is characterized in that: A third magnetic block (210) is movably mounted in the fixing frame (1), a vertical rod (211) is fixedly mounted at the bottom of the third magnetic block (210), a spring is sleeved on the vertical rod (211), two ends of the spring are respectively fixedly connected to the third magnetic block (210) and the fixing frame (1), and a connecting rod (212) is fixedly mounted at the bottom of the vertical rod (211).

5. The soft pack battery cell stacking device with auxiliary positioning function according to claim 4, characterized in that: An adjusting rod (213) is fixedly mounted on the end of the connecting rod (212); a cross bar (214) is fixedly mounted on the bottom of the pressing rod (206); a rotating block (215) is movably mounted on the adjusting rod (213); the rotating block (215) is fixedly connected to the cross bar (214); a rotating groove (216) is provided in the fixing frame (1); a rotating rod (217) is fixedly mounted in the rotating groove (216); and the pressing rod (206) is movably connected to the rotating rod (217).

6. The soft pack battery cell stacking device with auxiliary positioning function according to claim 1, characterized in that: A crossbeam (3) is fixedly mounted in the fixed frame (1), a rotating screw rod (301) is movably mounted in the crossbeam (3), a movable nut is movably mounted on the rotating screw rod (301) via a thread, and a motor is fixedly mounted on one side of the fixed frame (1), and an output end of the motor is fixedly connected to the rotating screw rod (301).

7. The soft pack battery cell stacking device with auxiliary positioning function according to claim 6, characterized in that: An electric push rod is fixedly mounted on the moving nut, and a connecting pipe (302) is fixedly mounted on the output end of the electric push rod. The bottom of the connecting pipe (302) is fixedly connected to the moving plate (101), and the connecting blocks (201) are located on both sides of the connecting pipe (302).

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