CN216288590U

CN216288590U - A rubberizing device for offset type welding electricity core

Info

Publication number: CN216288590U
Application number: CN202122651153.0U
Authority: CN
Inventors: 石亮; 赵伟; 张海峰; 李健
Original assignee: Hefei Guoxuan High Tech Power Energy Co Ltd
Current assignee: Hefei Gotion High Tech Power Energy Co Ltd
Priority date: 2021-10-29
Filing date: 2021-10-29
Publication date: 2022-04-12
Anticipated expiration: 2031-10-29

Abstract

The utility model discloses a rubberizing device for an offset welding cell, which comprises an unreeling mechanism, a dragging mechanism, a guide transition mechanism for guiding an adhesive tape, a glue pressing mechanism for pressing the adhesive tape, an adsorption mechanism for adsorbing the adhesive tape and a cutting mechanism for cutting the adsorbed adhesive tape, wherein the end part of the adhesive tape on the unreeling mechanism is connected to the dragging mechanism, the adsorption end of the adsorption mechanism is arranged on one side of the adhesive tape, and the adhesive tape on the unreeling mechanism is fixed on the dragging mechanism sequentially through the guide transition mechanism and the glue pressing mechanism; this rubberizing device makes two upper and lower sticky tapes that are cut can effectively laminate in utmost point ear both sides to seal extremely the ear.

Description

A rubberizing device for offset type welding electricity core

Technical Field

The utility model relates to the technical field of lithium battery preparation, in particular to a rubberizing device for bias welding of a battery core.

Background

Tab lead needs to be welded on the lug when the lithium battery cell is manufactured, the lug is lengthened in such a way, and the aluminum plastic film is used for sealing the stacked core in the packaging process. Tab lead is connected with the laminated core electrode lug in an ultrasonic welding mode, after welding is finished, concave-convex welding points are arranged on the upper portion and the lower portion of a welding surface, and in order to avoid the situation that metal salient points are directly contacted with an aluminum plastic film PP layer after packaging, poor insulation is generated due to friction, aluminum layer corrosion leakage and the like are caused, an insulating adhesive tape needs to be pasted in a welding and printing area.

In the utmost point ear offset type welding mode, after traditional artifical rubberizing tool rubberizing, there is the attached inaccuracy, leads to gluing the face dislocation from top to bottom, exposes to weld to seal the district and contacts with plastic-aluminum membrane PP layer and produce the bad insulation or sticky tape and utmost point ear glue coincidence are sealed in the top and are sealed the seal and produce the bad insulation.

SUMMERY OF THE UTILITY MODEL

Based on the technical problems in the prior art, the utility model provides a rubberizing device for bias welding of a battery cell, which can effectively seal and attach a tab.

The utility model provides a rubberizing device for an offset welding battery cell, which comprises an unreeling mechanism, a dragging mechanism, an adsorption mechanism for adsorbing an adhesive tape and a cutting mechanism for cutting the adhesive tape after adsorption, wherein the end part of the adhesive tape on the unreeling mechanism is connected to the dragging mechanism, and the adsorption end of the adsorption mechanism is arranged on one side of the adhesive tape.

Furthermore, the rubberizing device still includes the guide transition mechanism that is used for leading the sticky tape and compresses tightly the moulding press mechanism to the sticky tape, and the sticky tape on the unwinding mechanism is fixed to the drag mechanism through guide transition mechanism, moulding press mechanism in proper order.

Furthermore, unwinding mechanism, adsorption equipment construct, cut mechanism, guide transition mechanism, the mechanism of moulding all the longitudinal symmetry setting, and dragging mechanism sets up on the symmetry axis.

Furthermore, the dragging mechanism comprises a dragging plate, a dragging motor and a guide rail assembly, wherein the axis of the guide rail assembly is arranged on the upper symmetrical surface and the lower symmetrical surface, the dragging plate is connected with the guide rail assembly in a sliding mode, and the output end of the dragging motor is fixedly connected with the dragging plate.

Furthermore, the adsorption mechanism comprises a sucker, a Z-axis moving mechanism for driving the sucker to move up and down and an X-axis moving mechanism for driving the sucker to move back and forth, the Z-axis moving mechanism is slidably arranged on the X-axis moving mechanism, and the sucker is fixed at the up-and-down moving end of the Z-axis moving mechanism.

Furthermore, the adsorption end of the sucker is provided with a plurality of vacuum adsorption small holes which are externally connected with vacuum equipment; the two opposite sides of the suckers of the upper and lower adsorption mechanisms are provided with arc bulges, the sucker adsorption end of the lower adsorption mechanism is provided with an arc inclined plane, the arc inclined plane is attached to the offset welding shape of the laminated core lug, and the upper and lower arc bulges are symmetrically arranged.

Further, cut the mechanism including cutting the cylinder and being used for cutting the sword that cuts by the adsorbed sticky tape, cut the sword and be fixed in the flexible end that cuts the cylinder.

Further, the guide transition mechanism comprises at least one transition roller, and the transition roller is fixed between the unreeling mechanism and the glue pressing mechanism.

Further, the moulding mechanism includes moulding cylinder and moulding board, and the moulding board is fixed in the flexible end of moulding cylinder, and the moulding board of two moulding mechanisms can laminate the setting.

The rubberizing device for the offset welding cell provided by the utility model has the advantages that: according to the rubberizing device for the offset welding of the battery cell, provided by the utility model, after the dragging mechanism drags the adhesive tape, the adsorption mechanism adsorbs the tensioned adhesive tape, and then the adsorbed adhesive tape is cut by the cutting mechanism, so that the upper and lower two cut adhesive tapes can be effectively attached to two sides of the tab to seal the tab; the arrangement of the arc inclined plane of the sucker can effectively avoid the dislocation degree of the upper and lower adhesive tapes of the rubberizing after offset welding and the damage of the jig to the welding morphology; the arc bulge of sucking disc sets up for the sticky tape after being cut can make naked upper and lower sticky tape bond each other simultaneously, avoids because of sticky tape and metal foil adhesion is little, and the electrolyte soaks the condition that causes the back and drops and takes place.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic structural view of the upper chuck;

FIG. 3 is a schematic view of the structure of the lower chuck;

the automatic feeding device comprises a unwinding mechanism, a drawing mechanism, a sucking mechanism, a cutting mechanism, a gluing mechanism, a guiding transition mechanism, a first support, a second support, a drawing mechanism, a drawing motor, a guide rail assembly, a suction cup, a 32-Z-axis moving mechanism, a 33-X-axis moving mechanism, a cutting cylinder, a cutting knife, a 51-gluing cylinder, a 52-gluing plate, a transition roller, a 312-arc bulge and a 313-arc inclined plane, wherein the unwinding mechanism is 1-unwinding mechanism, the drawing mechanism is 2-drawing mechanism, the drawing mechanism is 8-second support, the drawing plate is 21-drawing mechanism, the drawing motor is 23-guide rail assembly, the suction cup is 31-suction cup, the 32-Z-axis moving mechanism is 33-X-axis moving mechanism, the cutting cylinder is 41-cutting knife, the 51-gluing cylinder, the 52-gluing plate, the transition roller is 61-arc bulge and the arc inclined plane is 313-arc inclined plane.

Detailed Description

The present invention is described in detail below with reference to specific embodiments, and in the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein, but rather should be construed as broadly as the present invention is capable of modification in various respects, all without departing from the spirit and scope of the present invention.

As shown in fig. 1 to 3, the tape sticking device for offset welding of the battery cell according to the present invention includes an unwinding mechanism 1, a drawing mechanism 2, an adsorption mechanism 3 for adsorbing the tape, and a cutting mechanism 4 for cutting the adsorbed tape, wherein an end of the tape on the unwinding mechanism 1 is connected to the drawing mechanism 2, and an adsorption end of the adsorption mechanism 3 is disposed on one side of the tape.

The unwinding mechanism 1 can be arranged into a disc structure and fixed on the first support 7, the adhesive tape is wound on the disc structure, and the end part of the wound adhesive tape is fixed on the dragging mechanism 2; after the adhesive tape is adsorbed by the adsorption mechanism 3, the adhesive tape is cut by the cutting mechanism 4, then the adsorption mechanism 3 moves to the adhesive tape sticking position to stack the core adhesive tape after welding, and the dislocation degree of the upper adhesive tape and the lower adhesive tape of the adhesive tape after offset welding and the damage of a jig to the welding appearance can be effectively avoided.

In this embodiment, the rubberizing device further includes a guiding transition mechanism 6 for guiding the adhesive tape and a glue pressing mechanism 5 for pressing the adhesive tape, and the adhesive tape on the unwinding mechanism 1 is fixed to the dragging mechanism 2 through the guiding transition mechanism 6 and the glue pressing mechanism 5 in sequence.

Guide transition mechanism 6 includes at least one transition roller 61, and transition roller 61 is fixed in between unwinding mechanism 1 and the moulding press 5, has set up three transition roller 61 in this embodiment, and transition roller 61 is the orbital cylinder of recess, and on the cylinder parallel fixation was in first support 7, the sticky tape was along the orbital motion of recess for the sticky tape can not take place to drop when passing through transition roller 61.

In order to attach the two opposite adhesive tapes of the folded core lug, the unwinding mechanism 1, the adsorption mechanism 3, the cutting mechanism 4, the guide transition mechanism 6 and the glue pressing mechanism 5 are arranged in an up-down symmetrical mode, the dragging mechanism 2 is arranged on a symmetrical axis, the dragging mechanism 2 can fix the adhesive tapes from the up-down unwinding mechanism 1 and drag the two symmetrical adhesive tapes simultaneously, two cut adhesive tapes are finally obtained, the two adhesive tapes are attached to the two surfaces of the folded core lug, and the lug can be attached.

Specifically, the glue pressing mechanism 5 comprises a glue pressing cylinder 51 and a glue pressing plate 52, the glue pressing plate 52 is fixed at the telescopic end of the glue pressing cylinder 51, the glue pressing plates 52 of the two glue pressing mechanisms 5 can be arranged in a fitting manner, and the glue pressing cylinder 51 is fixed on the first support 7.

The two vertically symmetrical rubber pressing cylinders 51 extend to enable the two symmetrical rubber pressing plates 52 to be mutually attached, so that the adhesive tapes passing through the two rubber pressing plates 52 are compressed, and the adsorption mechanism 3 can conveniently and effectively adsorb the adhesive tapes.

In this embodiment, the dragging mechanism 2 includes a dragging plate 21, a dragging motor 22, and a guide rail assembly 23 with an axis arranged on a symmetry axis, the dragging plate 21 is slidably connected with the guide rail assembly 23, an output end of the dragging motor 22 is fixedly connected with a slide block on the guide rail assembly 23, the dragging plate 21 is fixed on the slide block, and two ends of the guide rail assembly 23 are respectively fixed on the first support 7 and the second support 8. The dragging plate 21 can be fixed with a sliding block on the guide rail assembly 23 to realize the movement on the guide rail assembly 23, and the dragging motor 22 can drive the dragging plate 21 to move to a certain set thread so as to adsorb the adhesive tape through the adsorption mechanism 3.

Two clamps are arranged on the dragging plate 21, the two clamps are fixed on the dragging plate 21 body and are arranged in an up-and-down symmetrical mode, the upper adhesive tape and the lower adhesive tape are clamped at the end parts through the two clamps respectively, and the upper adhesive tape and the lower adhesive tape are dragged simultaneously.

In this embodiment, the suction mechanism 3 includes a suction cup 31, a Z-axis moving mechanism 32 for driving the suction cup 31 to move up and down, and an X-axis moving mechanism 33 for driving the suction cup 31 to move back and forth, the Z-axis moving mechanism 32 is slidably disposed on the X-axis moving mechanism 33, the suction cup 31 is fixed at the up-and-down moving end of the Z-axis moving mechanism 32, and the X-axis moving mechanism 33 is fixed on the second support 8.

The Z-axis moving mechanism 32 and the X-axis moving mechanism 33 may be implemented by a linear module, or may be implemented by a displacement cylinder. When the suction cup 31 needs to move in the Y-axis direction, a Y-axis moving mechanism may be provided, the Y-axis moving mechanism is slidably fixed on the X-axis moving mechanism 33, the Z-axis moving mechanism 32 is slidably fixed on the Y-axis moving mechanism, and the suction cup 31 is fixed on the Z-axis moving mechanism 32, so as to realize the spatial movement of the suction cup 31; similarly, the Y-axis moving mechanism may also be implemented by a linear module or a displacement cylinder or other methods, which is not limited herein.

The adsorption end of the sucker 31 is provided with a plurality of vacuum adsorption pores which are externally connected with vacuum equipment. The suction cup 31 realizes effective adsorption of the adhesive tape through the vacuum adsorption small holes, and can adjust the adsorbed force of the adhesive tape by controlling the parameters of the vacuum equipment.

As shown in fig. 2 and 3, the two opposite sides of the suction cups 31 of the upper and lower adsorption mechanisms 3 are provided with arc protrusions 312, the suction end of the suction cup 31 of the lower adsorption mechanism 3 is provided with an arc inclined plane 313, the arc inclined plane 313 is attached to the offset welding shape of the laminated core tab, so that the dislocation degree of the upper and lower adhesive tapes and the damage of a jig to the welding appearance can be effectively avoided after offset welding rubberizing, the upper and lower arc protrusions 312 are symmetrically arranged, the two arc protrusions 312 below are respectively arranged at the two ends of the arc inclined plane 313, and the arc size of the arc protrusions 312 is set according to the tab thickness, so that the cut adhesive tapes can simultaneously bond the exposed upper and lower adhesive tapes to each other, and the situation that the adhesive tapes and the metal foil materials have small adhesive force and fall off after being soaked in electrolyte is avoided.

In the present embodiment, the cutting mechanism 4 for cutting includes a cutting cylinder 41 and a cutting blade 42 for cutting the adsorbed adhesive tape, the cutting blade 42 is fixed to the telescopic end of the cutting cylinder 41, and the cutting cylinder 41 is fixed to the first support 7.

The working process is as follows: firstly, the adhesive tapes of two unwinding mechanisms 1 sequentially pass through corresponding guide transition mechanisms 6, the adhesive pressing plates 52 of two adhesive pressing mechanisms 5 are fixed on a clamp of a dragging mechanism 2, a dragging plate 21 is driven by a dragging motor 22 to stop after a certain thread is moved in the direction far away from the adhesive pressing mechanisms 5 by a guide rail assembly 23, an upper adhesive pressing cylinder 51 and a lower adhesive pressing cylinder 51 are extended to drive the two adhesive pressing plates 52 to be attached so as to compress and fix the passed adhesive tapes, then an upper sucking disc 31 and a lower sucking disc 31 move to one side of the corresponding adhesive tapes, after the adhesive tapes are adsorbed, the adsorbed adhesive tapes are cut by a cutting mechanism 4, and finally the upper sucking discs and the lower sucking discs drive the cut adhesive tapes to be conveyed to the two sides of a laminated core tab so as to glue the tab.

The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and equivalent alternatives or modifications according to the technical solution of the present invention and the inventive concept thereof should be covered by the scope of the present invention.

Claims

1. The utility model provides a rubberizing device for offset type welding electricity core, its characterized in that, including unwinding mechanism (1), drive mechanism (2), be used for carrying out adsorbed adsorption apparatus structure (3) and be used for carrying out cutting mechanism (4) that cut to the sticky tape after adsorbing, the sticky tape end connection on unwinding mechanism (1) is on drive mechanism (2), and the adsorption end of adsorption apparatus structure (3) sets up in sticky tape one side.

2. The rubberizing device for offset welding of electrical cores according to claim 1, wherein the rubberizing device further comprises a guiding transition mechanism (6) for guiding the adhesive tape and a pressing mechanism (5) for pressing the adhesive tape, and the adhesive tape on the unwinding mechanism (1) is fixed to the pulling mechanism (2) through the guiding transition mechanism (6) and the pressing mechanism (5) in sequence.

3. The rubberizing device for offset-type welding cells according to claim 2, wherein the unwinding mechanism (1), the adsorption mechanism (3), the cutting mechanism (4), the guiding transition mechanism (6), and the glue pressing mechanism (5) are all arranged in an up-down symmetrical manner, and the drawing mechanism (2) is arranged on a symmetry axis.

4. The rubberizing device for offset welding of electrical cores according to claim 3, wherein the dragging mechanism (2) comprises a dragging plate (21), a dragging motor (22) and a guiding rail assembly (23) with an axis arranged on the symmetry axis, the dragging plate (21) is slidably connected to the guiding rail assembly (23), and the output end of the dragging motor (22) is fixedly connected to the dragging plate (21).

5. The rubberizing device for offset-type welding cells according to claim 3, wherein the suction mechanism (3) comprises a suction cup (31), a Z-axis moving mechanism (32) for driving the suction cup (31) to move up and down, and an X-axis moving mechanism (33) for driving the suction cup (31) to move back and forth, the Z-axis moving mechanism (32) is slidably disposed on the X-axis moving mechanism (33), and the suction cup (31) is fixed at an up-and-down moving end of the Z-axis moving mechanism (32).

6. The rubberizing device for offset-type welding of the electrical core according to claim 5, wherein a plurality of vacuum suction small holes are formed at a suction end of the suction cup (31), and the vacuum suction small holes are externally connected with a vacuum device;

the two opposite sides of the sucking discs (31) of the upper attaching mechanism (3) and the lower attaching mechanism (3) are respectively provided with an arc bulge (312), the sucking end of the sucking disc (31) of the lower attaching mechanism (3) is provided with an arc inclined plane (313), the arc inclined plane (313) is attached to the core-stacked lug offset welding shape, and the upper arc bulge and the lower arc bulge (312) are symmetrically arranged.

7. The rubberizing device for offset-type welded electric core according to any one of claims 1 to 4, wherein the cutting mechanism (4) comprises a cutting cylinder (41) and a cutting knife (42) for cutting the absorbed adhesive tape, and the cutting knife (42) is fixed to a telescopic end of the cutting cylinder (41).

8. The rubberizing device for offset welding cells according to claim 2, wherein the guiding transition mechanism (6) comprises at least one transition roller (61), and the transition roller (61) is fixed between the unwinding mechanism (1) and the pressing mechanism (5).

9. The rubberizing device for offset-type welding cells according to claim 4, wherein the glue pressing mechanism (5) comprises a glue pressing cylinder (51) and a glue pressing plate (52), the glue pressing plate (52) is fixed at the telescopic end of the glue pressing cylinder (51), and the glue pressing plates (52) of the two glue pressing mechanisms (5) can be fitted.