Square winding needle assembly for new energy lithium battery processing
By using a multi-coil needle body structure and air blowing mechanism design, the problems of diaphragm carry-out and wrinkling are solved, ensuring the integrity of the internal structure of the cell and improving battery performance.
Patent Information
- Application Number
- CN202520364634.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-04
- Publication Date
- 2026-02-27
- Estimated Expiration
- 2035-03-04
AI Technical Summary
The existing square coiled pin assembly used in the processing of new energy lithium batteries is prone to causing the separator to be pulled out and wrinkled during the winding process, which affects the integrity of the internal structure of the cell and the performance of the battery.
The design employs a multi-coil needle body structure, combined with an air blowing mechanism. After winding, air is blown between the coil needle bodies through air guide grooves and exhaust holes to ensure that the diaphragm is separated from the coil needle body, reducing the probability of the diaphragm being carried out.
This effectively prevents the separator from being pulled out when the winding needle is withdrawn, improving the integrity of the internal structure of the cell and the battery performance.
Smart Images
Figure CN223956607U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to new energy lithium battery processing equipment component technical field, concretely is a square needle assembly for new energy lithium battery processing. BACKGROUND
[0002] The square needle assembly for new energy lithium battery processing includes a needle body, which is usually composed of two groups of symmetrically arranged left and right needles, and the cross section is generally an isosceles right triangle, with the oblique sides symmetrically arranged to form a square needle. A clamping gap is provided between the left and right needles for placing the pole piece and the diaphragm.
[0003] The existing square needle assembly for new energy lithium battery processing has the following problems when in use: during the winding process, the diaphragm may be taken out and wrinkled, that is, when the needle is pulled out after winding is completed, the diaphragm may be taken out together, causing the diaphragm to be wrinkled or even the pole piece to be folded inward, which affects the integrity of the internal structure of the battery cell and reduces the performance and safety of the battery. UTILITY MODEL CONTENTS
[0004] (I) Technical problem solved
[0005] In view of the deficiencies of the prior art, the utility model provides a square needle assembly for new energy lithium battery processing, which solves the problems raised in the background art.
[0006] (II) Technical scheme
[0007] To achieve the above-mentioned purpose, the utility model provides the following technical scheme: a square needle assembly for new energy lithium battery processing, comprising a mounting mechanism, the mounting mechanism comprises an annular assembly seat, the annular assembly seat front end middle part is fixedly connected with the mounting seat, the mounting seat rear end upper and lower two side walls are equipped with annular installation groove, and the rotatable gas supply mechanism is rotatably arranged in the annular installation groove, the rotatable gas supply mechanism includes a rotating connection seat rotatingly installed in the annular installation groove, a through hole is formed between the center positions of the front and rear side walls of the rotating connection seat, a first gas pipe is fixedly connected to the rear end of the rotating connection seat and located at the through hole opening thereof, a second gas pipe is fixedly connected to the front end of the rotating connection seat and located at the through hole opening thereof, a pipe groove for the rotating connection of the first gas pipe is formed at the front end of the annular assembly seat and the rear end of the annular installation groove, a gas guide groove for the rotating connection of the second gas pipe is formed at the front end of the annular assembly seat, a group of exhaust holes are formed at both ends of the gas guide groove, a group of needle bodies are slidingly installed at both ends of the mounting seat, each group of needle bodies is two and symmetrically arranged about the corresponding group of exhaust holes on one side thereof.
[0008] As a further scheme of the utility model: the annular assembly seat rear end center position is equipped with a through slot for the first trachea to go out, a group of the exhaust holes are multiple and are arranged in equal distance from front to back.
[0009] As a further scheme of the utility model: the annular assembly seat front end annular outer side wall is equipped with an annular assembly groove.
[0010] As a further scheme of the utility model: the mounting seat two ends upper and lower sides are equipped with the first clamping groove for the needle body sliding installation, and the mounting seat upper and lower ends middle parts are equipped with the second clamping groove for the needle body sliding installation.
[0011] As a further scheme of the utility model: the mounting seat outer side wall and the annular mounting groove front end fixed sleeve are equipped with a limiting sleeve, and the limiting sleeve front end slidingly fits four needle bodies.
[0012] Compared with the prior art, the utility model has the beneficial effects that:
[0013] 1、 in the utility model, through the whole adoption multi-needle body structure design, namely, the mounting seat two sides are equipped with four movable detachable needle bodies, and one side is provided with two needle bodies, compared with the unilateral integral needle body, the contact area of needle body and outer diaphragm can be reduced, after winding, the unilateral needle body can be removed twice, effectively reducing the probability of diaphragm being taken out by needle body.
[0014] 2、 in the utility model, the blowing mechanism is provided with the air guide groove in the mounting seat, and two groups of exhaust holes are provided at the both ends of the air guide groove, the two groups of exhaust holes can blow air to the gap between the two needle bodies on the same side after winding, so that the diaphragm and needle body are completely separated, and the diaphragm can be further avoided from being taken out together when the needle body is removed. BRIEF DESCRIPTION OF DRAWINGS
[0015] Figure 1 It is the whole three-dimensional of the utility model Figure 1 ;
[0016] Figure 2 It is the whole three-dimensional of the utility model Figure 2 ;
[0017] Figure 3 It is the mounting mechanism sectional view three-dimensional drawing of the utility model;
[0018] Figure 4 It is the needle body and rotatable air supply mechanism three-dimensional drawing of the utility model.
[0019] In the figure: 1, installation mechanism; 2, rotatable gas supply mechanism; 3, needle body; 11, annular assembly seat; 12, mounting seat; 13, pipe groove; 14, through groove; 15, annular assembly groove; 16, gas guide groove; 17, exhaust hole; 18, limiting sleeve; 19, first clamping groove; 110, second clamping groove; 21, rotating connection seat; 22, first gas pipe; 23, second gas pipe. DETAILED DESCRIPTION
[0020] The embodiments of the present application will be further described below in conjunction with the drawings and examples. The following examples are used to illustrate the present application, but cannot be used to limit the scope of the present application.
[0021] In the description of the present application, unless otherwise specified, the meaning of "a plurality of" is two or more; The orientation or positional relationship indicated by the terms "upper", "lower", "left", "right", "inner", "outer", "front end", "rear end", "head", "tail" and the like is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application. In addition, the terms "first", "second", "third" and the like are only for the purpose of description, and cannot be understood as indicating or implying relative importance.
[0022] In the description of the present application, it should be noted that, unless otherwise specified and limited, the terms "connected", "connected" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; It can be mechanically connected, or it can be electrically connected; It can be directly connected, or it can be indirectly connected through an intermediate medium. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.
[0023] Please refer to Figures 1-4The utility model discloses an square needle winding assembly for new energy lithium battery processing, including installation mechanism 1, installation mechanism 1 includes an annular assembly seat 11, and the front end middle part fixedly connected with mounting seat 12 of annular assembly seat 11, and the upper and lower two side walls between the rear end of mounting seat 12 are provided with annular mounting groove, and rotatable gas supply mechanism 2 is rotationally arranged in annular mounting groove, and rotatable gas supply mechanism 2 includes the rotary connection seat 21 of rotation installation in annular mounting groove, and the through -hole is opened between the center position of the front and rear two side walls of rotary connection seat 21, and the rear end of rotary connection seat 21 and the through -hole opening of its are fixedly connected with first gas pipe 22, and the front end of rotary connection seat 21 and the through -hole opening of its are fixedly connected with second gas pipe 23, and the front end of annular assembly seat 11 and the rear end of annular mounting groove are provided with the pipe groove 13 of the rotation connection of first gas pipe 22, and the front end of annular assembly seat 11 is provided with the gas guide groove 16 of the rotation connection of second gas pipe 23, and a group of exhaust holes 17 are set up in the both ends of gas guide groove 16, and a group of needle bodies 3 are slidably installed in the both ends of mounting seat 12, and each group needle body 3 is two and about the corresponding one side of a group of exhaust holes 17 is set up in upper and lower symmetry, and the whole adopts the structure design of multiple needle body, that is, four detachable needle bodies are set up on the both sides of mounting seat 12, and two needle bodies 3 are set up on one side, compared with the needle body 3 of one -sided integral type, can reduce the contact area of needle body 3 and outer diaphragm, after winding, the needle body of one -sided can 3 be taken down twice, effectively reduce the probability of diaphragm being taken out by needle body 3.
[0024] The through -hole 14 of the first gas pipe 22 is set up in the center position of the rear end of annular assembly seat 11, a group of exhaust holes 17 are multiple and set up in equidistance from front to back, and the whole is provided with blowing mechanism in cooperation with needle body 3, and the gas guide groove 16 is set up in mounting seat 12, and two groups of exhaust holes 17 are set up in the both ends of gas guide groove 16, and the two groups of exhaust holes 17 can blow gas to the gap between the two needle bodies 3 of same side after winding, can make diaphragm and needle body 3 completely separate, at this moment, further avoid taking out diaphragm together with needle body 3.
[0025] The annular assembly groove 15 is set up in the annular outer side wall of the front end of annular assembly seat 11, can rotate assembly in the corresponding hole position of new energy lithium battery processing equipment in the rear end of annular assembly seat 11, at this moment, can be assembled belt drive mechanism through its annular assembly groove 15, and drives its rotation through belt drive mechanism.
[0026] The first clamping groove 19 for sliding installation of needle body 3 is set up in the upper and lower two sides of the both ends of mounting seat 12, and the second clamping groove 110 for sliding installation of needle body 3 is set up in the middle part of the upper and lower two ends of mounting seat 12, and the first clamping groove 19 and second clamping groove 110 play the sliding installation limiting effect of needle body 3, can prevent its irregular swing.
[0027] The limit sleeve 18 is sleeved with the limit sleeve 18 at the front end of the annular mounting groove of the outer side wall of the mounting seat 12, and the four needle bodies 3 are slidably attached to the front end of the limit sleeve 18.
[0028] The working principle of the utility model is as follows: the pole piece and the diaphragm are placed in the clamping seam of the needle mounting seat 12, the pole piece and the diaphragm are clamped and fixed through the cooperation of the movable pressing strip and the clamping groove, the annular assembly seat 11 rear end can be rotationally assembled in the corresponding hole position of the new energy lithium battery processing equipment, at this time, the belt transmission mechanism can be assembled through the annular assembly groove 15, the belt transmission mechanism is driven to rotate, the pole piece and the diaphragm are driven to start winding under the driving of the needle structure, the pole core of the battery cell is formed, the tension control system monitors and controls the tension of the pole piece and the diaphragm in real time in the winding process, the winding quality is ensured, when the winding reaches the predetermined number of turns or length, the driving mechanism stops rotating, then the control strip-shaped air bag is deflated, the movable pressing strip is loosened to clamp the pole piece and the diaphragm, finally, the wound battery cell is taken off from the needle structure, and the work is completed.
[0029] The above is only the preferred specific implementation of the utility model, but the protection scope of the utility model is not limited to this, any skilled person in the art can make equivalent replacement or change according to the technical scheme and the utility model concept of the utility model within the technical range disclosed by the utility model, which should be covered in the protection scope of the utility model.
Claims
1. A square winding needle assembly for new energy lithium battery processing, comprising a mounting mechanism (1), the mounting mechanism (1) comprising an annular assembly seat (11); characterized in that The annular assembly seat (11) is fixedly connected with a mounting seat (12) at the middle of the front end, annular mounting grooves are formed between the upper and lower side walls of the rear end of the mounting seat (12), and a rotatable air supply mechanism (2) is rotatably arranged in the annular mounting grooves; The rotatable air supply mechanism (2) comprises a rotating connection seat (21) rotatably arranged in the annular mounting grooves, a through hole is formed between the center positions of the front and rear side walls of the rotating connection seat (21), a first air pipe (22) is fixedly connected to the rear end of the rotating connection seat (21) and located at the through hole opening thereof, and a second air pipe (23) is fixedly connected to the front end of the rotating connection seat (21) and located at the through hole opening thereof; A pipe groove (13) for rotating connection of the first air pipe (22) is formed at the front end of the annular assembly seat (11) and the rear end of the annular mounting groove, a gas guide groove (16) for rotating connection of the second air pipe (23) is formed at the front end of the annular assembly seat (11), and a group of exhaust holes (17) are formed at both ends of the gas guide groove (16). A group of winding needle bodies (3) are slidingly installed at both ends of the mounting seat (12), each group of the winding needle bodies (3) is two and symmetrically arranged about a group of exhaust holes (17) on the corresponding side.
2. The square winding needle assembly for processing new energy lithium battery according to claim 1, characterized in that: A through groove (14) for the first air pipe (22) to pass out is formed at the center position of the rear end of the annular assembly seat (11).
3. The square winding needle assembly for processing new energy lithium battery according to claim 1, characterized in that: An annular assembly groove (15) is formed on the annular outer side wall of the front end of the annular assembly seat (11).
4. The square winding needle assembly for processing new energy lithium battery according to claim 1, characterized in that: A group of the exhaust holes (17) are multiple and arranged at equal distances from front to back.
5. The square winding needle assembly for processing new energy lithium battery according to claim 1, characterized in that: First clamping grooves (19) for sliding installation of the winding needle bodies (3) are formed at the upper and lower sides of both ends of the mounting seat (12).
6. The square winding needle assembly for processing new energy lithium battery according to claim 1, characterized in that: Second clamping grooves (110) for sliding installation of the winding needle bodies (3) are formed at the middle of the upper and lower ends of the mounting seat (12).
7. The square winding needle assembly for processing new energy lithium battery according to claim 1, characterized in that: A limiting sleeve (18) is fixedly sleeved on the outer side wall of the mounting seat (12) and located at the front end of the annular mounting groove, and the front end of the limiting sleeve (18) slidingly abuts four winding needle bodies (3).