CN217306580U

CN217306580U - Winding mechanism capable of providing tension release for lithium battery winding core

Info

Publication number: CN217306580U
Application number: CN202123418856.5U
Authority: CN
Inventors: 廖永顺; 曹赛青; 曹美艳; 孟安生; 王�义
Original assignee: Huizhou Superstar Technology Co ltd
Current assignee: Huizhou Superstar Technology Co ltd
Priority date: 2021-12-31
Filing date: 2021-12-31
Publication date: 2022-08-26
Anticipated expiration: 2031-12-31

Abstract

The utility model relates to a winding mechanism capable of providing tension release for a lithium battery winding core, which belongs to the field of lithium battery production and comprises a frame, wherein a first mounting plate is arranged on the frame, a mounting seat is horizontally and telescopically arranged on the first mounting plate, a rotating shaft is rotatably arranged on the mounting seat, and the axis direction of the rotating shaft is arranged along the telescopic direction of the mounting seat; one end of the rotating shaft, which is far away from the mounting seat, forms a mounting surface, a supporting plate is fixedly arranged on the mounting surface, the central line of the supporting plate is superposed with the axis of the rotating shaft, pressing strips are also arranged on two sides of the supporting plate, the pressing strips are fixedly arranged on the mounting surface, and a gap is formed between the pressing strips and the supporting plate; the side of pivot has seted up the spout along the axis direction of pivot, but is provided with the support bar along the axis direction reciprocating motion of pivot in the spout. The utility model discloses can make the tension of positive plate and negative plate obtain the release, effectively improve the fluffy degree of rolling up the core, be convenient for roll up the operation of flattening of core.

Description

Winding mechanism capable of providing tension release for lithium battery winding core

Technical Field

The utility model relates to a lithium cell production field, in particular to can roll up winding mechanism that core provided tension release for the lithium cell.

Background

In the production process of the lithium battery, the positive plate and the negative plate need to be stacked together and then wound together to form a winding core, and then the winding core is flattened and placed into the aluminum-plastic film shell. However, when the conventional winding machine winds the stacked positive electrode sheet and negative electrode sheet, the positive electrode sheet and negative electrode sheet are tightly wound together, and therefore, a larger pressure is required to crush the winding core later, which may easily cause the winding core to be crushed or the winding core to be unable to be crushed to a required thickness.

SUMMERY OF THE UTILITY MODEL

Therefore, a winding mechanism capable of providing tension release for a lithium battery winding core is needed, and the winding mechanism comprises a rack, wherein a first mounting plate is arranged on the rack, a mounting seat is horizontally and telescopically arranged on the first mounting plate, a rotating shaft is rotatably arranged on the mounting seat, and the axial direction of the rotating shaft is arranged along the telescopic direction of the mounting seat; one end of the rotating shaft, which is far away from the mounting seat, forms a mounting surface, a supporting plate is fixedly arranged on the mounting surface, the central line of the supporting plate is superposed with the axis of the rotating shaft, pressing strips are further arranged on two sides of the supporting plate, the pressing strips are fixedly arranged on the mounting surface, and a gap is formed between the pressing strips and the supporting plate; the side of pivot has seted up the spout along the axis direction of pivot, but be provided with the support bar along the axis direction reciprocating motion ground of pivot in the spout.

The utility model is used for carry out the positive plate and the negative pole piece operation of convoluteing carried by being parallel to each other, its coiling process is: the mount pad drives pivot on it and removes towards positive plate and negative pole piece for between positive plate and the negative pole piece is inserted to the backup pad, make two layering be located the outside of positive plate and negative pole piece respectively simultaneously, then the pivot rotates round the axis of self, can continuously carry out the rolling operation to positive plate and negative pole piece.

Wherein, after carrying out a period of time at the rolling process, make the support bar remove and remove to the outside of coiling positive plate and negative pole piece in the backup pad towards positive plate and negative pole piece, then continue the rolling, can make including positive plate and negative pole piece support bar cladding when the rolling, and finally, after positive plate and negative pole piece coiling completion, take off rolling up the core from the backup pad, can obtain the inside roll core that has the dead slot structure, this dead slot structure resumes the back under the elastic action of positive plate and negative pole piece, can make the tension of positive plate and negative pole piece obtain the release, can make the inside winding structure of roll core more fluffy, thereby can conveniently flatten the thickness that rolls up the core to needs.

Further, the support bar through the drive arrangement that slides but set up with reciprocating motion in the spout, the drive arrangement that slides includes can along the axis direction reciprocating motion's of pivot collar, just the collar with pivot coaxial line sets up, the inboard of collar rotationally is provided with the rotating ring, the inside wall of rotating ring pass through the connecting rod with support bar fixed connection.

Wherein, the collar can set up on first mounting panel through setting up the actuating cylinder reciprocating motion ground of driving on first mounting panel, can drive the rotating ring removal on it through the removal of collar, and then can promote the support bar and remove to realize the reciprocating motion of support bar in the spout. Of course, the mounting ring can also be driven to reciprocate by a driving cylinder arranged at any position on the machine frame.

Wherein, the swivel becket rotationally sets up the inboard at the collar, consequently, when the pivot rotates, the swivel becket can rotate under the drive of support bar and connecting rod to can ensure swivel becket and support bar and can keep interconnect's structure when the pivot rotates.

Furthermore, a second mounting plate is further arranged on the rack, a sliding hole is formed in the second mounting plate corresponding to the rotating shaft, and the rotating shaft is inserted into the sliding hole and is matched with the sliding hole in a sliding mode.

The sliding hole arranged on the second mounting plate can be used for supporting the rotating shaft so as to ensure the stability of the rotating process of the rotating shaft.

Further, the length of the pressing strip is longer than that of the supporting plate; still rotationally be provided with the inserted block in the frame, the rotation center line of inserted block with the axis coincidence setting of pivot, just correspond in the pivot the layering has seted up and has been used for layering male slot.

When the rotating shaft moves towards the positive plate and the negative plate, the pressing strips on the rotating shaft can be inserted into the corresponding slots, so that the inserting blocks can also play a role in supporting the rotating shaft; in addition, the inserting block is provided with a supporting plate corresponding to the supporting plate to be inserted into the slot, and the inserting block can also have the function of supporting the supporting plate.

Furthermore, the rotating shaft is rotatably arranged on the mounting seat through a driving motor arranged on the mounting seat.

Furthermore, the mounting base is telescopically arranged on the first mounting plate through a driving cylinder arranged on the first mounting plate.

Furthermore, a sliding rail is further arranged on the first mounting plate, the sliding rail is arranged along the axis direction of the rotating shaft, and the mounting seat can be slidably arranged on the sliding rail.

The sliding rail is used for supporting the mounting seat so as to reduce the bearing of the first driving cylinder.

Further, the upper end of the lateral wall of both sides of spout is fixed and is provided with spacing, the connecting rod is with the spacing butt of both sides, the width of support bar is greater than the interval between two spacing.

Wherein, spacing strip is used for preventing the support bar from deviating from the spout.

The principle and effect of the present invention will be further explained below with reference to the above technical solutions and the accompanying drawings:

the utility model discloses an in the rolling in-process at positive plate and negative pole piece inserts the support bar and accomplishes the book core that does not roll, can be so that the roll core that the rolling was accomplished has an dead slot structure, and this dead slot structure resumes the back under the elastic action of positive plate and negative pole piece, can be so that the tension of positive plate and negative pole piece obtains the release, can make the winding structure of rolling up the core inside more fluffy to can conveniently flatten the thickness of rolling up core to needs.

Drawings

Fig. 1 is a schematic cross-sectional view of a winding mechanism for releasing tension of a lithium battery roll core according to an embodiment of the present invention in an initial state;

FIG. 2 is an enlarged view of a portion of FIG. 1;

fig. 3 is a schematic cross-sectional view of a winding mechanism capable of providing tension release for a lithium battery roll core according to an embodiment of the present invention when a support plate moves between a positive plate and a negative plate;

fig. 4 is a schematic cross-sectional view of a winding mechanism for providing tension release to a lithium battery winding core according to an embodiment of the present invention when a support bar moves to the outside of an unwound winding core;

fig. 5 is a schematic side view of a rotating shaft according to an embodiment of the present invention;

fig. 6 is a schematic side view of an insert block according to an embodiment of the present invention;

fig. 7 is a schematic view of the supporting plate and the matching structure of the pressing bar and the positive plate and the negative plate according to the embodiment of the present invention;

fig. 8 is a schematic structural view of a winding core completed by winding according to an embodiment of the present invention.

Description of reference numerals:

1-a first mounting plate, 11-a mounting seat, 12-a rotating shaft, 121-a sliding chute, 1211-a limiting strip, 13-a driving motor, 14-a supporting plate, 15-a pressing strip, 16-a supporting strip, 17-a sliding rail, 18-a driving cylinder, 2-a second mounting plate, 31-a mounting ring, 32-a rotating ring, 33-a connecting rod, 34-a bearing, 4-an inserting block, 41-a slot, 5-a winding core, 51-a positive plate, 52-a negative plate and 53-an empty groove structure.

Detailed Description

To facilitate understanding of those skilled in the art, the present invention will be described in further detail with reference to the accompanying drawings and examples:

referring to fig. 1-8, a winding mechanism capable of providing tension release for a lithium battery winding core includes a frame (not shown in the drawings), a first mounting plate 1 is disposed on the frame, a mounting seat 11 is horizontally and telescopically disposed on the first mounting plate 1, a rotating shaft 12 is rotatably disposed on the mounting seat 11, and an axial direction of the rotating shaft 12 is disposed along a telescopic direction of the mounting seat 11; one end of the rotating shaft 12, which is far away from the mounting seat 11, forms a mounting surface, a support plate 14 is fixedly arranged on the mounting surface, the central line of the support plate 14 is overlapped with the axis of the rotating shaft 12, pressing strips 15 are further arranged on two sides of the support plate 14, the pressing strips 15 are fixedly arranged on the mounting surface, and a gap is formed between the pressing strips 15 and the support plate 14; a sliding groove 121 is formed in a side surface of the rotating shaft 12 along an axial direction of the rotating shaft 12, and a supporting bar 16 is disposed in the sliding groove 121 along the axial direction of the rotating shaft 12 in a reciprocating manner.

The utility model is used for to being carried positive plate 51 and negative pole piece 52 to being carried mutually in parallel carry out the operation of convoluteing, its coiling process is: the mounting seat 11 drives the rotating shaft 12 thereon to move towards the positive plate 51 and the negative plate 52, so that the supporting plate 14 is inserted between the positive plate 51 and the negative plate 52, and simultaneously the two pressing strips 15 are respectively located at the outer sides of the positive plate 51 and the negative plate 52, and then the rotating shaft 12 rotates around the axis of the rotating shaft, so that the winding operation of the positive plate 51 and the negative plate 52 can be continuously performed.

Wherein, after the rolling process has been carried out for a period of time, make support bar 16 move and move to the outside of positive plate 51 and negative pole piece 52 of coiling on backup pad 14 towards positive plate 51 and negative pole piece 52, then continue the rolling, can make including positive plate 51 and negative pole piece 52 with support bar 16 cladding when the rolling, finally, after positive plate 51 and negative pole piece 52 coiling are accomplished, take off core 5 from backup pad 14, can obtain the inside book core 5 that has dead slot structure 53, this dead slot structure 53 resumes the back under the elastic action of positive plate 51 and negative pole piece 52, can make the tension of positive plate 51 and negative pole piece 52 obtain releasing, can make the inside winding structure of book core 5 more fluffy, thereby can conveniently flatten book core 5 to required thickness.

One of them embodiment, support bar 16 through slip drive arrangement reciprocating motion set up in the spout 121, the drive arrangement that slides includes can along the axis direction reciprocating motion's of pivot 12 collar 31, just collar 31 with pivot 12 coaxial line sets up, the inboard of collar 31 is rotationally provided with swivel 32, swivel 32's inside wall pass through connecting rod 33 with support bar 16 fixed connection.

In this embodiment, the mounting ring 31 may be disposed on the first mounting plate 1 in a manner that the driving cylinder 18 disposed on the first mounting plate 1 can move back and forth, and the movement of the mounting ring 31 can drive the rotating ring 32 thereon to move, so as to push the supporting bar 16 to move, thereby realizing the back and forth movement of the supporting bar 16 in the sliding groove 121. Of course, the mounting ring 31 may also be driven to reciprocate by a drive cylinder disposed at any position on the frame.

Wherein, the rotating ring 32 can be rotatably disposed inside the mounting ring 31 through the bearing 34, when the rotating shaft 12 rotates, the rotating ring 32 will rotate under the driving of the supporting bar 16 and the connecting rod 33, so as to ensure that the rotating ring 32 and the supporting bar 16 can maintain the mutually connected structure when the rotating shaft 12 rotates.

In one embodiment, the rack is further provided with a second mounting plate 2, the second mounting plate 2 is provided with a sliding hole corresponding to the rotating shaft 12, and the rotating shaft 12 is inserted into the sliding hole and slidably matched with the sliding hole.

In this embodiment, the sliding hole formed in the second mounting plate 2 may be used to support the rotating shaft 12, so as to ensure the stability of the rotating process of the rotating shaft 12.

In one embodiment, the length of the pressing strip 15 is longer than that of the supporting plate 14; still rotationally be provided with inserted block 4 in the frame, the rotation center line of inserted block 4 with the axis coincidence setting of pivot 12, just correspond in the pivot 12 the layering 15 is seted up and is used for the inserted slot 41 of layering 15.

In this embodiment, when the rotating shaft 12 moves towards the positive plate 51 and the negative plate 52, the pressing strips 15 on the rotating shaft 12 are inserted into the corresponding slots 41, and therefore, the insertion block 4 can also play a role in supporting the rotating shaft 12; in addition, the insert block 4 can also have the function of supporting the support plate 14 by arranging a slot corresponding to the support plate 14 on the insert block 4 for inserting the support plate 14 into.

In one embodiment, the rotating shaft 12 is rotatably disposed on the mounting base 11 by a driving motor 13 disposed on the mounting base 11.

In one embodiment, the mounting seat 11 is telescopically arranged on the first mounting plate 1 through a driving cylinder 18 arranged on the first mounting plate 1.

In one embodiment, the first mounting plate 1 is further provided with a slide rail 17, the slide rail 17 is disposed along the axial direction of the rotating shaft 12, and the mounting seat 11 is slidably disposed on the slide rail 17.

In this embodiment, the slide rail 17 is used to support the mounting base 11 to reduce the load of the first driving cylinder 18.

In one embodiment, the upper ends of the side walls of the sliding groove 121 are fixedly provided with limit strips 1211, the connecting rod 33 abuts against the limit strips 1211 on the two sides, and the width of the supporting strip 16 is greater than the distance between the two limit strips 1211.

In this embodiment, the stop strip 1211 is used to prevent the supporting strip 16 from falling out of the sliding groove 121.

The above examples only represent some embodiments of the present invention, and the description thereof is more specific and detailed, but not to be construed as limiting the scope of the present invention. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several variations and modifications can be made, which are within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.

Claims

1. A winding mechanism capable of providing tension release for a lithium battery winding core is characterized by comprising a rack, wherein a first mounting plate is arranged on the rack, a mounting seat is horizontally and telescopically arranged on the first mounting plate, a rotating shaft is rotatably arranged on the mounting seat, and the axis direction of the rotating shaft is arranged along the telescopic direction of the mounting seat; one end of the rotating shaft, which is far away from the mounting seat, forms a mounting surface, a supporting plate is fixedly arranged on the mounting surface, the central line of the supporting plate is superposed with the axis of the rotating shaft, pressing strips are further arranged on two sides of the supporting plate, the pressing strips are fixedly arranged on the mounting surface, and a gap is formed between the pressing strips and the supporting plate; the side of pivot along the axis direction of pivot has seted up the spout, but be provided with the support bar along in the spout along the axis direction reciprocating motion ground of pivot.

2. The winding mechanism capable of releasing tension of the lithium battery winding core according to claim 1, wherein the support bar is disposed in the sliding groove in a reciprocating manner through a sliding driving device, the sliding driving device comprises a mounting ring capable of reciprocating along the axial direction of the rotating shaft, the mounting ring is disposed coaxially with the rotating shaft, a rotating ring is rotatably disposed on the inner side of the mounting ring, and the inner side wall of the rotating ring is fixedly connected with the support bar through a connecting rod.

3. The winding mechanism capable of releasing tension of the lithium battery winding core according to claim 1, wherein a second mounting plate is further arranged on the frame, a sliding hole is formed in the second mounting plate corresponding to the rotating shaft, and the rotating shaft is inserted into the sliding hole and slidably matched with the sliding hole.

4. The winding mechanism capable of providing tension relief for a lithium battery jelly roll according to claim 1, wherein the length of the bead is longer than the length of the support plate; still rotationally be provided with the inserted block in the frame, the rotation center line of inserted block with the axis coincidence setting of pivot, just correspond in the pivot the layering is seted up and is used for the layering male slot.

5. The winding mechanism for providing tension relief to a lithium battery jelly roll according to claim 1, wherein the spindle is rotatably mounted to the mounting base by a drive motor mounted to the mounting base.

6. The winding mechanism capable of providing tension relief for a lithium battery jelly roll according to claim 5, wherein the mounting base is telescopically disposed on the first mounting plate by a drive cylinder disposed on the first mounting plate.

7. The winding mechanism capable of providing tension release for the lithium battery winding core according to claim 6, wherein a slide rail is further disposed on the first mounting plate, the slide rail is disposed along an axial direction of the rotating shaft, and the mounting seat is slidably disposed on the slide rail.

8. The winding mechanism capable of providing tension release for the lithium battery winding core according to claim 2, wherein the upper ends of the side walls at two sides of the sliding groove are fixedly provided with limiting strips, the connecting rod is abutted against the limiting strips at two sides, and the width of the supporting bar is greater than the distance between the two limiting strips.