CN218513512U

CN218513512U - Battery winding needle

Info

Publication number: CN218513512U
Application number: CN202222302849.7U
Authority: CN
Inventors: 程创; 陈彪; 周中心; 李利潮; 刘朝阳
Original assignee: Shanghai Lanjun New Energy Technology Co Ltd
Current assignee: Shanghai Lanjun New Energy Technology Co Ltd
Priority date: 2022-08-31
Filing date: 2022-08-31
Publication date: 2023-02-21
Anticipated expiration: 2032-08-31

Abstract

The utility model provides a needle is rolled up to battery. The battery winding needle comprises a roller body and a movable piece; the movable piece is movably and fixedly arranged on the roller body, and the movable piece is used for adjusting the length of the outer peripheral line of the movable piece and the roller body. The utility model discloses a needle is rolled up to battery pass through the moving part activity and can fix set up in the roll body can adjust as required the moving part for the position or the angle of roll body make can adjust in fixed range the roll body with the total length of the outer peripheral line of moving part, and then can obtain the roll needle of different book footpaths, make the battery of this application roll up the needle like this and can be applicable to different models or batch battery production, and need not to be equipped with other roll needles, save manufacturing cost, convenient to use.

Description

Battery winding needle

Technical Field

The utility model relates to a battery rolling technical field especially relates to a needle is rolled up to battery.

Background

The lithium battery is widely applied to the fields of consumer electronics and electric automobiles due to the advantages of high energy density, long service life, greenness, no pollution, safety performance and the like.

The battery core of the lithium battery consists of a diaphragm, a positive plate and a negative plate, and a coil material is usually wound into the battery core by a winding needle of a winding machine and then subjected to subsequent processing. The winding needle is a core part of a winding process, and when winding production is carried out, the winding needles with different winding diameters are required to be equipped due to different batches or models of winding materials and different lengths of batteries.

The outer circumference of the existing winding needle is generally a fixed value. When different production requirements are met, in the prior art, a plurality of winding needles are arranged on a winding machine, or Teflon is manually attached to the outer side of each winding needle to change the outer circumference of each winding needle. On the one hand, the winding needle is expensive to manufacture, which increases the manufacturing cost, and on the other hand, the adjustment is troublesome, which makes it inconvenient to adjust the outer circumference.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a needle is rolled up to battery for it is expensive, the not convenient to use problem to roll up needle manufacturing cost among the improvement prior art.

In order to achieve the purpose, the utility model provides a battery winding needle, which comprises a roller body and a movable part; the movable piece is movably and fixedly arranged on the roller body, and the movable piece is used for adjusting the length of the outer peripheral line of the movable piece and the roller body.

The utility model discloses a needle is rolled up to battery's beneficial effect lies in: through the movable part activity and fixable set up in the roll body can adjust as required the movable part for the position or the angle of roll body make can adjust in fixed range the roll body with the total length of the outer peripheral line of movable part, and then can obtain the book needle of different book footpaths, make the battery of this application roll up the needle like this and can be applicable to different models or batch battery production, and need not to be equipped with other book needles, save manufacturing cost, convenient to use.

In a possible embodiment, a connecting piece is further included; the connecting piece is movably arranged relative to the roller body and used for fixing the moving piece. The beneficial effects are that: the connecting piece is arranged to fix the position of the moving piece, so that the position of the moving piece can be adjusted conveniently.

In a possible embodiment, the roller body is provided with a sliding groove, and the movable member is movably and fixedly arranged in the sliding groove. The beneficial effects are that: the sliding groove is arranged, and the moving piece is movably arranged in the sliding groove, so that the moving piece can be wholly or partially arranged in the sliding groove, the value of the minimum outer circumference of the winding needle can be shortened, and the adjustable range of the outer circumference of the winding needle is enlarged.

In a possible embodiment, the movable member is provided in several pieces. The beneficial effects are that: the movable pieces are arranged, so that the adjustable range of each movable piece can be accumulated conveniently, the value of the maximum outer circumference of the winding needle can be increased, and the adjustable range of the outer circumference of the winding needle can be increased.

In a possible embodiment, the movable members are arranged uniformly along the circumferential side of the roller body. The beneficial effects are that: set up like this and be convenient for promote the symmetry of the object of book needle rolling, promote structural stability.

In a possible embodiment, at least one of the roller body and the movable member is provided with an air hole for communicating with an external negative pressure device. The beneficial effects are that: through connecting outside negative pressure device, make gas pocket department forms the negative pressure, is convenient for when initial the roll up needle adsorbs treating the effect object, the going on of the rolling of being convenient for.

In a possible embodiment, a press roller and a support are also included; the compression roller is rotatably arranged on the support piece, and the compression roller is arranged on the roller body and the outer side of the moving piece. The beneficial effects are that: the pressing roller and the supporting piece are arranged, acting force is formed on the outer side wall of the object rolled by the rolling needle conveniently, and the possibility that the outer side wall of the object subjected to the rolling needle buckling can be reduced.

In one possible embodiment, a drive member is further included; the driving part is connected with the compression roller and used for driving the compression roller to rotate. The beneficial effects are that: the driving piece is arranged to drive the compression roller to rotate, active acting force is provided for the outer side wall of an acting object of the winding needle, and the winding process of the winding needle is promoted from the outer side.

In a possible embodiment, the device further comprises a fixed piece and an elastic piece; the supporting piece is rotatably arranged on the fixing piece, the elastic piece is arranged on the fixing piece, and the elastic piece is connected with the supporting piece. The beneficial effects are that: the fixing piece and the elastic piece are arranged, so that the position of the supporting piece relative to the roller body can be elastically changed, and the position of the pressing roller can be elastically changed in the same way, so that the hard acting force between the pressing roller and an acting object of the winding needle is reduced, and the possibility of damage of the acting object is reduced.

Drawings

Fig. 1 is a schematic perspective view of a battery winding needle according to a first embodiment of the present invention;

FIG. 2 is a schematic cross-sectional view of FIG. 1;

fig. 3 is a schematic perspective view of a battery winding pin according to a second embodiment of the present invention;

fig. 4 is a schematic perspective view of a battery winding needle according to a third embodiment of the present invention;

fig. 5 is a schematic perspective view of a battery winding pin according to a fourth embodiment of the present invention;

fig. 6 is a schematic perspective view of a battery winding pin according to a fifth embodiment of the present invention.

Reference numbers in the figures:

1. a roller body;

2. a movable member;

3. a connecting member;

4. air holes;

5. a compression roller;

6. a support member;

7. a fixing member;

8. an elastic member.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention clearer, the drawings of the present invention are combined to clearly and completely describe the technical solutions in the embodiments of the present invention, and obviously, the described embodiments are some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention. Unless defined otherwise, technical or scientific terms used herein shall have the ordinary meaning as understood by one of ordinary skill in the art to which this invention belongs. As used herein, the word "comprising" and similar words are intended to mean that the element or item preceding the word comprises the element or item listed after the word and its equivalent, but not the exclusion of other elements or items.

To the problem that prior art exists, the embodiment of the utility model provides a needle is rolled up to battery.

Fig. 1 is the perspective structure schematic diagram of the needle is rolled up to the battery in the first embodiment of the present invention, fig. 2 is the sectional structure schematic diagram of fig. 1, fig. 3 is the perspective structure schematic diagram of the needle is rolled up to the battery in the second embodiment of the present invention, fig. 4 is the perspective structure schematic diagram of the needle is rolled up to the battery in the third embodiment of the present invention, fig. 5 is the perspective structure schematic diagram of the needle is rolled up to the battery in the fourth embodiment of the present invention.

In some embodiments of the present invention, referring to fig. 1 to 5, the battery winding needle includes a roller body 1 and a movable member 2; the moving part 2 is movably and fixedly arranged on the roller body 1, and the moving part 2 is used for adjusting the lengths of the moving part 2 and the outer peripheral line of the roller body 1.

In some embodiments of the present invention, the roller body 1 is cylindrical, and the moving member 2 is a block or strip structure.

In some embodiments, the movable member 2 is provided in a C-shape, two parallel side surfaces of the C-shape of the movable member 2 are fastened to two ends of the roller body 1, and the position of the movable member 2 relative to the roller body 1 is fixed by a fastening force.

In some embodiments, the roller body 1 is provided with a sliding groove, the movable member 2 can move in the sliding groove along a direction away from or close to the axis of the roller body 1, and the movable member 2 is disposed in the sliding groove in an interference fit manner.

In some embodiments, the movable portion is rotatably or slidably disposed on the roller body 1, the connecting member 3 is disposed on the roller body 1 in an elastic manner, when the position of the movable portion needs to be adjusted, the connecting member 3 is loosened to adjust the movable portion to a predetermined position, and then the connecting member 3 is fastened, and the connecting member 3 presses the movable member 2 to fix the movable member 2.

In some embodiments, the connecting member 3 is movably and fixedly disposed on the roller body 1, the moving member 2 is fixedly or movably disposed on the connecting member 3, and the position adjustment of the moving member 2 is realized by the position adjustment of the connecting member 3.

In some embodiments, the connecting element 3 is movably arranged relative to the roller body 1, and the connecting element 3 is used for fixing the movable element 2.

In some embodiments, the movable member 2 is cylindrical, the movable member 2 is rotatably disposed at a non-axial position of the roller body 1 through a fixing rod, and along with the rotation of the fixing rod of the movable member 2, the axial distance of the movable member 2 from the axial position of the roller body 1 changes, and at this time, the lengths of the outer peripheral lines of the movable member 2 and the roller body 1 change synchronously.

In some embodiments, the moving member 2 is non-cylindrical, or the cross-section of the moving member 2 is non-circular. In other words, there are at least two points on the cross section of the moving part 2 that have different distances from the axis of the moving part 2. At this time, by rotating the movable member 2, the outer tangent of the roller body 1 and the movable member 2 can be adjusted, and the length of the outer periphery can also be adjusted.

In some embodiments, the connector 3 is a bolt or a screw.

In some embodiments, the movable member 2 is disposed parallel to the roller body 1.

In some embodiments, the outer circumferential lines, i.e., the tangent point of the roller body 1, the tangent point of the movable member 2, and the two outer tangent lines of the roller body 1 and the movable member 2, enclose a closed figure.

In some embodiments, the roller body 1 is provided with a sliding groove, and the movable member 2 is movably and fixedly disposed in the sliding groove.

In some embodiments, the movable member 2 is in the form of a slider, a sliding groove with a size matched with that of the movable member 2 is formed in the roller body 1, and when the movable member 2 moves into the sliding groove, the roller body 1 and the sliding groove form a cylinder. In some specific embodiments, the connecting member 3 is a screw rod, the roller body 1 is provided with a thread adapted to the screw rod, the screw rod is disposed on the roller body 1 in a threaded manner, the movable member 2 is rotatably connected to the connecting member 3, and the movable member 2 can be driven to approach or leave the roller body 1 along with the rotation of the connecting member 3.

In some embodiments, the lead screw is driven by a motor. In some specific embodiments, when the position of the movable member 2 needs to be adjusted, the motor is butted with the lead screw, the motor is started to drive the lead screw to rotate, the relative position of the movable member 2 is adjusted, and the motor is taken down after the adjustment is completed.

In some embodiments of the present invention, referring to fig. 1 to 5, the movable member 2 is provided in a plurality.

In some embodiments of the present invention, the moving member 2 is set to four, the moving member 2 is set in different positions of the roller body 1.

In some embodiments, the number of the movable members 2 is four, the number of the sliding slots is also four, and the four movable members 2 are movably and fixedly disposed on the four sliding slots respectively.

In some embodiments, the moving members 2 are provided in two, three, or five.

In some embodiments, when the movable member 2 is provided in a plurality of numbers, the basic shape of the object obtained by rolling can be adjusted by adjusting different positions of different movable members 2.

In some embodiments, the shape of the rolled object is circular, diamond, or oval.

In some embodiments of the present invention, referring to fig. 1 to 5, each of the moving members 2 is disposed along the circumferential side of the roller body 1.

In some embodiments of the present invention, the moving member 2 is set to four, four the moving member 2 is respectively set up in the upper, lower, left and right directions of the roller body 1.

In some embodiments of the present invention, referring to fig. 1 to 6, the roller body 1 and at least one of the moving members 2 is provided with an air hole 4, and the air hole 4 is used for communicating with an external negative pressure device.

In some embodiments of the present invention, the one end of the air hole 4 and the moving part 2 is kept away from the side of the roller body 1 is communicated, and the other end of the air hole 4 extends to the end surface of the moving part 2. When the negative pressure type battery winding device is used, the external negative pressure device is communicated with one end of the air hole 4 in the end face of the moving part 2, and negative pressure can be formed at one end of the air hole 4, which is far away from the side face of the roller body 1, of the moving part 2 under the communication effect of the air hole 4, so that a film layer of a battery to be wound, which is placed at the position of the negative pressure type battery winding device, can be adsorbed.

In some embodiments of the present invention, referring to fig. 1 to 6, the present invention further includes a pressing roller 5 and a supporting member 6; the compression roller 5 is rotatably arranged on the support piece 6, and the compression roller 5 is arranged on the roller body 1 and the outer side of the movable piece 2.

The utility model discloses in some embodiments, compression roller 5 is cylindric, roll body 1 with the moving part 2 is level setting around all, just moving part 2 is located roll body 1's right side, compression roller 5 passes through support piece 6 set up in moving part 2's right side, compression roller 5 with leave the clearance between the moving part 2, compression roller 5 is used for the right flank of the rolling object of pressure attach in clearance department.

In some embodiments of the present invention, referring to fig. 1 to 6, a driving member (not shown) is further included; the driving part is connected with the compression roller 5 and used for driving the compression roller 5 to rotate.

In some embodiments of the present invention, the driving member (not shown) is a motor, and the motor is disposed coaxially with the pressing roller 5.

In some embodiments, the motor rotates in the opposite direction to the roller body 1.

In some embodiments of the present invention, referring to fig. 1 to 6, the present invention further includes a fixing member 7 and an elastic member 8; the supporting member 6 is rotatably disposed on the fixing member 7, the elastic member 8 is disposed on the fixing member 7, and the elastic member 8 is connected to the supporting member 6.

In some embodiments of the present invention, the fixing member 7 is fixed set up in the right side of the moving member 2, the right lower end of the supporting member 6 is rotated or hinged to be set up in the fixing member 7, the compression roller 5 can freely rotate set up in the upper left end of the supporting member 6, the elastic member 8 is a spring, both ends of the elastic member 8 are respectively connected to the fixing member 7 and the supporting member 6, so that the supporting member 6 can be relative to the fixing member 7 is kept at a certain angle, and along with the roller body 1 with the rolling of the moving member 2, the outer diameter of the object of rolling becomes gradually, can be extruded the supporting member 6 rotates upward right.

Although the embodiments of the present invention have been described in detail hereinabove, it is apparent to those skilled in the art that various modifications and variations can be made to these embodiments. However, it is to be understood that such modifications and variations are within the scope and spirit of the present invention as set forth in the appended claims. Moreover, the invention as described herein is capable of other embodiments and of being practiced or of being carried out in various ways.

Claims

1. A battery winding needle is characterized by comprising a roller body and a movable piece;

the movable piece is movably and fixedly arranged on the roller body, and the movable piece is used for adjusting the length of the outer peripheral line of the movable piece and the roller body.

2. The needle of claim 1, further comprising a connector;

the connecting piece is movably arranged relative to the roller body and used for fixing the moving piece.

3. The winding needle according to claim 1, wherein the roller body is provided with a chute, and the movable member is movably and fixedly provided to the chute.

4. The needle of claim 1 wherein said movable member is provided in a plurality.

5. The needle of claim 4 wherein each of said movable members is disposed uniformly along a peripheral side of said roller body.

6. The needle of claim 1 wherein at least one of the roller body and the movable member is provided with an air vent for communicating with an external negative pressure device.

7. The needle of claim 1 further comprising a pressure roller and a support;

the compression roller is rotatably arranged on the support piece, and the compression roller is arranged on the roller body and the outer side of the moving piece.

8. The needle of claim 7 further comprising a drive member;

the driving part is connected with the compression roller and used for driving the compression roller to rotate.

9. The needle of claim 7 further comprising a fixed member and an elastic member;

the supporting piece is rotatably arranged on the fixing piece, the elastic piece is arranged on the fixing piece, and the elastic piece is connected with the supporting piece.