An electrode plate transfer mechanism and a lamination device

Abstract

The utility model relates to battery manufacturing equipment technical field especially relates to a kind of pole piece transfer mechanism and laminating equipment, pole piece transfer mechanism includes vibration thimble and is equipped with suction hole suction assembly;The suction assembly is adsorbed electrode piece through the suction hole;The vibration thimble is installed on the suction assembly, for reciprocating knock the electrode piece adsorbed by the suction assembly.The utility model, after the suction assembly adsorbs electrode piece, the vibration thimble can reciprocating knock the electrode piece from side, so that the electrode piece adsorbed by the suction assembly occurs unceasing vibration, avoids this pole piece transfer mechanism disposable adsorption multiple electrode pieces, guarantees the stability of this pole piece transfer mechanism electrode piece shift one by one.

Description

Technical Field

[0001] This utility model relates to the field of battery manufacturing equipment technology, and in particular to an electrode transfer mechanism and a stacking device. Background Technology

[0002] In battery manufacturing, one step involves assembling the negative electrode, positive electrode, and separator into a battery cell. The separator, located between the positive and negative electrodes, separates them to prevent short circuits caused by contact between the positive and negative electrodes. The stacking mechanism is a system that stacks the positive electrode, separator, and negative electrode together. It includes an electrode transfer mechanism and a separator transfer assembly. The electrode transfer mechanism transfers the positive and negative electrodes one by one to the stacking platform, while the separator transfer assembly transfers the separator to the stacking platform. The electrode transfer mechanism uses nozzles to pick up either the positive or negative electrode. However, during the process of picking up the positive or negative electrode, the nozzle may pick up multiple electrodes at once, leading to stacking defects. Utility Model Content

[0003] This utility model provides an electrode transfer mechanism and a stacking device to solve the technical problem in the prior art where the electrode transfer mechanism adsorbs multiple positive or negative electrodes at one time.

[0004] An embodiment of the present invention provides an electrode transfer mechanism, including a vibrating pin and an adsorption assembly with suction holes; the adsorption assembly adsorbs electrode sheets through the suction holes; the vibrating pin is mounted on the adsorption assembly and is used to reciprocate to tap the electrode sheets adsorbed by the adsorption assembly.

[0005] Optionally, the adsorption assembly includes a guide shaft, an elastic element, a support block, a support plate with guide holes, and a suction block with suction holes.

[0006] One end of the guide shaft is connected to the suction block, and the other end of the guide shaft passes through the guide hole and is connected to the support block; the opposite ends of the elastic element abut against the support plate and the support block respectively; the vibrating pin is mounted on the support plate.

[0007] An embodiment of this utility model provides a stacking device, including a support base, a stacking platform mechanism, a diaphragm transfer mechanism, and the above components are mounted on the support base and connected to the support platform; a pressing drive component is mounted on the support base and connected to the pressing block, used to drive the pressing block to press the electrode sheets on the support platform;

[0008] The diaphragm transfer mechanism includes a feeding roller, a moving drive, a support, and a guide roller. The feeding roller is mounted on the support and is used to wind the diaphragm. The moving drive is mounted on the support and is connected to the support. The adsorption component and the guide roller are both mounted on the support. The guide roller is used to guide the diaphragm released by the feeding roller to the support platform.

[0009] The moving drive is used to drive the electrode transfer mechanism to move via the support member, so that the electrode transfer mechanism transfers the electrode to the support platform.

[0010] Optionally, the diaphragm transfer mechanism further includes a pressure roller rotatably mounted on the support member; the moving drive member is used to drive the pressure roller to move through the support member, so that the pressure roller presses the diaphragm on the support platform.

[0011] Optionally, the feeding roller includes a feeding drive, an expansion sleeve, and a plurality of elastic glass beads; the feeding drive is mounted on the support base, and the expansion sleeve is mounted on the output end of the feeding drive;

[0012] The expansion sleeve is provided with a plurality of mounting hole groups distributed circumferentially, each of the mounting hole groups including a plurality of first mounting holes distributed axially along the expansion sleeve, and the elastic glass beads are installed one by one in the first mounting holes.

[0013] Optionally, the stacking mechanism further includes a cutter mounted on the support base for cutting the diaphragm between the guide roller and the support base.

[0014] Optionally, the stacking device further includes a feeding mechanism, which includes a storage frame mounted on the support base, and the storage frame is provided with a storage space for storing multiple electrode sheets; the moving drive is used to drive the electrode sheet transfer mechanism to move through the support base, so that the electrode sheet transfer mechanism transfers the electrode sheets in the storage space to the support platform.

[0015] Optionally, the feeding mechanism further includes a feeding lifting drive and a top block; the feeding lifting drive is mounted on the support base and connected to the top block, and is used to drive the electrode sheet in the storage space to rise and fall through the top block.

[0016] Optionally, the stacking device further includes a waste frame mounted on the support base;

[0017] The moving drive is also used to drive the electrode transfer mechanism to move via the support member, so that the electrode transfer mechanism transfers the defective electrode sheet from the storage box or the support platform to the waste box.

[0018] Optionally, the electrode transfer mechanism further includes an adsorption lifting drive, which is mounted on the support and the adsorption assembly is mounted on the output end of the adsorption lifting drive.

[0019] In this invention, the adsorption assembly adsorbs the electrode sheet through the suction hole, and the vibrating pin is installed on the adsorption assembly. After the adsorption assembly adsorbs the electrode sheet, the vibrating pin can tap the electrode sheet from the side, causing the electrode sheet adsorbed by the adsorption assembly to vibrate continuously. This prevents the electrode sheet transfer mechanism from adsorbing multiple electrode sheets at once, thus ensuring the stability of the electrode sheet transfer mechanism in transferring electrode sheets one by one. Attached Figure Description

[0020] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the description of the embodiments of this utility model will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0021] Figure 1 This is a schematic diagram of the electrode transfer mechanism provided in one embodiment of the present invention;

[0022] Figure 2 This is a schematic diagram of the stacking device provided in one embodiment of the present invention;

[0023] Figure 3 A partial structural schematic diagram of a stacking device provided in an embodiment of this utility model;

[0024] Figure 4 A schematic diagram of the electrode transfer mechanism and diaphragm transfer mechanism of the stacking equipment provided in an embodiment of this utility model;

[0025] Figure 5 A schematic diagram of the structure of the feeding roller of the stacking device provided in one embodiment of this utility model;

[0026] Figure 6 A schematic diagram of the stacking mechanism of a stacking device according to an embodiment of this utility model.

[0027] The reference numerals in the accompanying drawings are as follows:

[0028] 1. Electrode transfer mechanism; 11. Vibrating ejector pin; 12. Adsorption assembly; 121. Guide shaft; 122. Elastic component; 123. Support block; 124. Support plate; 125. Suction block; 13. Adsorption lifting drive component; 2. Support seat; 3. Stacking mechanism; 31. Stacking lifting drive component; 32. Support platform; 33. Pressing drive component; 34. Pressing block; 35. Cutter; 4. Diaphragm transfer mechanism; 41. Feeding roller; 411. Feeding drive component; 412. Expansion sleeve; 413. Elastic glass beads; 42. Moving drive component; 43. Support component; 44. Guide roller; 45. Pressing roller; 5. Feeding mechanism; 51. Storage frame; 52. Feeding lifting drive component; 53. Top block; 6. Waste frame. Detailed Implementation

[0029] To make the technical problems solved, technical solutions, and beneficial effects of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0030] like Figure 1 As shown, an embodiment of the present invention provides an electrode transfer mechanism 1, including a vibrating pin 11 and an adsorption assembly 12 with suction holes; the adsorption assembly 12 adsorbs electrode sheets through the suction holes; the vibrating pin 11 is mounted on the adsorption assembly 12 and is used to reciprocate to strike the electrode sheets adsorbed by the adsorption assembly 12. It can be understood that the vibrating pin 11 can be connected to an external air source or can have its own vibration motor; the adsorption assembly 12 has multiple suction holes arranged in an array.

[0031] In this invention, the adsorption component 12 adsorbs the electrode sheet through the suction hole, and the vibrating pin 11 is installed on the adsorption component 12. After the adsorption component 12 adsorbs the electrode sheet, the vibrating pin 11 can tap the electrode sheet from the side repeatedly, so that the electrode sheet adsorbed by the adsorption component 12 vibrates continuously, avoiding the electrode transfer mechanism 1 from adsorbing multiple electrode sheets at one time, and ensuring the stability of the electrode transfer mechanism 1 in transferring the electrode sheets one by one.

[0032] In one embodiment, such as Figure 1 As shown, the adsorption assembly 12 includes a guide shaft 121, an elastic element 122, a support block 123, a support plate 124 with guide holes, and a suction block 125 with suction holes; it can be understood that the suction block 125 is provided with a plurality of suction holes distributed in an array.

[0033] One end of the guide shaft 121 is connected to the suction block 125, and the other end of the guide shaft 121 passes through the guide hole and is connected to the support block 123; the opposite ends of the elastic element 122 abut against the support plate 124 and the support block 123 respectively; the vibrating pin 11 is mounted on the support plate 124. Understandably, the vibrating pin 11 is located to the side of the suction block 125; the elastic element 122 includes, but is not limited to, springs, leaf springs, etc.

[0034] Specifically, during the process of the suction block 125 adsorbing the electrode sheet from the storage frame 51, the suction block 125 squeezes and adsorbs the electrode sheet from the top of the storage frame 51. The suction block 125 drives the guide shaft 121 to slide upward in the guide hole, and the guide shaft 121 compresses the elastic member 122. The rebound force of the elastic member 122 makes the pressure block 34 maintain the pressure on the electrode sheet, thereby allowing the pressure block 34 to smoothly adsorb the electrode sheet, while also preventing the suction block 125 from damaging the electrode sheet. In addition, when the suction block 125 adsorbs the electrode sheet, the vibrating pin 11 taps the electrode sheet repeatedly from the side, thereby preventing the suction block 125 from adsorbing multiple electrode sheets at once.

[0035] like Figure 2 and Figure 3 As shown, another embodiment of the present invention also provides a stacking device, including a support base 2, a stacking mechanism 3, a diaphragm transfer mechanism 4, and the aforementioned electrode transfer mechanism 1;

[0036] The stacking mechanism 3 includes a stacking lifting drive 31, a support platform 32, a pressing drive 33, and a pressing block 34. The stacking lifting drive 31 is mounted on the support base 2 and connected to the support platform 32. The pressing drive 33 is mounted on the support base 2 and connected to the pressing block 34, and is used to drive the pressing block 34 to press the electrode sheet on the support platform 32. It can be understood that the stacking lifting drive 31 and the pressing drive 33 include, but are not limited to, pneumatic cylinders, hydraulic cylinders, screw and nut assemblies, etc. The pressing block 34 is located on the side of the support platform 32.

[0037] The diaphragm transfer mechanism 4 includes a feeding roller 41, a moving drive component 42, a support component 43, and a guide roller 44. The feeding roller 41 is mounted on the support base 2 and is used to wind the diaphragm. The moving drive component 42 is mounted on the support base 2 and connected to the support component 43. The adsorption component 12 and the guide roller 44 are both mounted on the support component 43. The guide roller 44 is used to guide the diaphragm released by the feeding roller 41 to the support platform 32. It can be understood that the moving drive component 42 includes, but is not limited to, a pneumatic cylinder, a hydraulic cylinder, and a lead screw and nut assembly. The support component 43 includes, but is not limited to, a plate. A roll of diaphragm is wound on the feeding roller 41. The support component 43 can be mounted on the support base 2 through a guide rail slider assembly and a guide rod sleeve assembly.

[0038] The moving drive 42 is used to drive the electrode transfer mechanism 1 to move through the support 43, so that the electrode transfer mechanism 1 transfers the electrode to the support platform 32.

[0039] Specifically, the moving drive 42 drives the electrode transfer mechanism 1 to move via the support 43. After the electrode transfer mechanism 1 transfers one electrode sheet onto the support platform 32, the pressing drive 33 drives the pressing block 34 to press the electrode sheet firmly onto the support platform 32. The moving drive 42 then drives the guide roller 44 to move via the support 43, and the guide roller 44 lays the diaphragm on the electrode sheet. The pressing drive 33 then drives the pressing block 34 to release the electrode sheet. The moving drive 42 then drives the electrode transfer mechanism 1 to move via the support 43, and the electrode transfer mechanism 1 transfers another electrode sheet onto the diaphragm. The pressing drive 33 then drives the pressing block 34 to press the stacked electrode sheets and diaphragm firmly onto the support platform 32. This cycle continues until the cell stacking process is completed. In this invention, the stacking equipment can complete the stacking of electrode sheets and diaphragms, improving the cell processing efficiency. In addition, after electrode sheets and diaphragms of a certain thickness are stacked on the support platform 32, the stacking platform lifting drive 31 drives the support platform 32 to descend a certain distance, ensuring the stability of the stacking of electrode sheets and diaphragms on the support platform 32.

[0040] In one embodiment, such as Figure 3 and Figure 4As shown, the diaphragm transfer mechanism 4 further includes a pressing roller 45 rotatably mounted on the support member 43; the moving drive member 42 is used to drive the pressing roller 45 to move through the support member 43, so that the pressing roller 45 presses the diaphragm on the support platform 32. Specifically, during the process of the moving drive member 42 driving the support member 43 to move, after the guide roller 44 lays the diaphragm on the electrode sheet, the pressing roller 45 presses the diaphragm from behind, thereby ensuring the flatness of the diaphragm laid on the electrode sheet.

[0041] In one embodiment, such as Figure 5 As shown, the feeding roller 41 includes a feeding drive component 411, an expansion sleeve 412, and a plurality of elastic glass beads 413; the feeding drive component 411 is mounted on the support base 2, and the expansion sleeve 412 is mounted on the output end of the feeding drive component 411; it can be understood that the feeding drive component 411 includes, but is not limited to, a motor.

[0042] The expansion sleeve 412 is provided with a plurality of circumferentially spaced mounting hole groups. Each mounting hole group includes a plurality of first mounting holes spaced along the axial direction of the expansion sleeve 412. The elastic glass beads 413 are installed in the first mounting holes one by one. It can be understood that the number of the first mounting holes and the number of elastic glass beads 413 can be set according to actual needs. When the expansion sleeve 412 is fitted onto the expansion sleeve 412, the elastic glass beads 413 can press the expansion sleeve 412 from all sides, thereby ensuring the stability of the expansion sleeve 412 when fitted onto the expansion sleeve 412.

[0043] In one embodiment, such as Figure 6 As shown, the stacking mechanism 3 also includes a cutter 35 mounted on the support base 2. The cutter 35 is used to cut the diaphragm between the guide roller 44 and the support platform 32. Understandably, after the electrode sheets and the diaphragm are stacked on the support platform 32, the cutter 35 cuts the diaphragm, thus completing the battery cell composed of the electrode sheets and the diaphragm on the support platform 32. An external robotic arm or similar device can then remove the battery cell from the support platform 32.

[0044] In one embodiment, such as Figure 2 and Figure 3As shown, the stacking device further includes a feeding mechanism 5, which includes a storage frame 51 mounted on the support base 2. The storage frame 51 has a storage space for storing multiple electrode sheets. The moving drive 42 is used to drive the electrode transfer mechanism 1 to move via the support 43, so that the electrode transfer mechanism 1 transfers the electrode sheets in the storage space to the support platform 32. It can be understood that the feeding mechanism 5 stacks multiple electrode sheets vertically; the electrode transfer mechanism 1 picks up the electrode sheets one by one from above in the storage space and then transfers the electrode sheets to the support platform 32.

[0045] In one embodiment, such as Figure 3 As shown, the feeding mechanism 5 further includes a feeding lifting drive 52 and a top block 53. The feeding lifting drive 52 is mounted on the support base 2 and connected to the top block 53, used to drive the electrode sheets in the storage space to rise and fall via the top block 53. Understandably, the top block 53 extends into the storage space from the side. The feeding lifting drive 52 includes, but is not limited to, a pneumatic cylinder, a hydraulic cylinder, and a lead screw and nut assembly. Specifically, after a certain number of electrode sheets are removed from the storage space, the feeding lifting drive 52 drives the top block 53 to move the electrode sheets upwards, thereby facilitating the electrode sheet transfer mechanism 1 to pick up the electrode sheets one by one from the storage space.

[0046] In one embodiment, such as Figure 2 and Figure 3 As shown, the stacking equipment also includes a waste frame 6 mounted on the support base 2; the moving drive 42 is also used to drive the electrode transfer mechanism 1 to move via the support base 43, so that the electrode transfer mechanism 1 transfers the defective electrode sheets on the storage frame 51 or the support platform 32 to the waste frame 6. It can be understood that when defective electrode sheets appear on the storage frame 51 or the support platform 32, the moving drive 42 drives the electrode transfer mechanism 1 to move via the support base 43, and the electrode transfer mechanism 1 can transfer the defective electrode sheets to the waste frame 6, thereby facilitating the collection of defective electrode sheets from the waste frame 6 by the operator.

[0047] In one embodiment, such as Figure 3 and Figure 4As shown, the electrode transfer mechanism 1 further includes an adsorption lifting drive 13, which is mounted on the support member 43. The adsorption assembly 12 is mounted on the output end of the adsorption lifting drive 13. It can be understood that the adsorption lifting drive 13 includes, but is not limited to, pneumatic cylinders, hydraulic cylinders, and linear motors; the adsorption lifting drive 13 drives the adsorption assembly 12 to move downwards, thereby allowing the adsorption assembly 12 to adsorb or stack electrode sheets.

[0048] The above-described embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model, and should all be included within the protection scope of this utility model.

Claims

1. An electrode transfer mechanism, characterized in that, It includes a vibrating pin and an adsorption assembly with suction holes; the adsorption assembly adsorbs electrode sheets through the suction holes; the vibrating pin is mounted on the adsorption assembly and is used to reciprocate to tap the electrode sheets adsorbed by the adsorption assembly.

2. The electrode transfer mechanism according to claim 1, characterized in that, The adsorption assembly includes a guide shaft, an elastic element, a support block, a support plate with guide holes, and a suction block with the suction holes. One end of the guide shaft is connected to the suction block, and the other end of the guide shaft passes through the guide hole and is connected to the support block; the opposite ends of the elastic element abut against the support plate and the support block respectively; the vibrating pin is mounted on the support plate.

3. A stacking device, characterized in that, Includes a support base, a stacking mechanism, a diaphragm transfer mechanism, and an electrode transfer mechanism as described in claim 1 or 2; The stacking mechanism includes a stacking lifting drive, a support platform, a pressing drive, and a pressing block; the stacking lifting drive is mounted on the support base and connected to the support platform; the pressing drive is mounted on the support base and connected to the pressing block, and is used to drive the pressing block to press the electrode sheet on the support platform. The diaphragm transfer mechanism includes a feeding roller, a moving drive, a support, and a guide roller. The feeding roller is mounted on the support and is used to wind the diaphragm. The moving drive is mounted on the support and is connected to the support. The adsorption component and the guide roller are both mounted on the support. The guide roller is used to guide the diaphragm released by the feeding roller to the support platform. The moving drive is used to drive the electrode transfer mechanism to move via the support member, so that the electrode transfer mechanism transfers the electrode to the support platform.

4. The stacking equipment according to claim 3, characterized in that, The diaphragm transfer mechanism further includes a pressure roller rotatably mounted on the support member; the moving drive member is used to drive the pressure roller to move through the support member so that the pressure roller presses the diaphragm on the support platform.

5. The stacking equipment according to claim 3, characterized in that, The feeding roller includes a feeding drive, an expansion sleeve, and a plurality of elastic glass beads; the feeding drive is mounted on the support base, and the expansion sleeve is mounted on the output end of the feeding drive; The expansion sleeve is provided with a plurality of mounting hole groups distributed circumferentially, each of the mounting hole groups including a plurality of first mounting holes distributed axially along the expansion sleeve, and the elastic glass beads are installed one by one in the first mounting holes.

6. The stacking equipment according to claim 3, characterized in that, The stacking mechanism also includes a cutter mounted on the support base, the cutter being used to cut the diaphragm between the guide roller and the support base.

7. The stacking equipment according to claim 3, characterized in that, The stacking equipment further includes a feeding mechanism, which includes a storage frame mounted on the support base. The storage frame has a storage space for storing multiple electrode sheets. The moving drive is used to drive the electrode transfer mechanism to move through the support base, so that the electrode transfer mechanism transfers the electrode sheets in the storage space to the support platform.

8. The stacking equipment according to claim 7, characterized in that, The feeding mechanism further includes a feeding lifting drive and a top block; the feeding lifting drive is mounted on the support base and connected to the top block, and is used to drive the electrode sheet in the storage space to rise and fall through the top block.

9. The stacking equipment according to claim 7, characterized in that, The stacking equipment also includes a waste frame installed on the support base; The moving drive is also used to drive the electrode transfer mechanism to move via the support member, so that the electrode transfer mechanism transfers the defective electrode sheet from the storage box or the support platform to the waste box.

10. The stacking equipment according to claim 3, characterized in that, The electrode transfer mechanism further includes an adsorption lifting drive, which is mounted on the support and the adsorption assembly is mounted on the output end of the adsorption lifting drive.

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