CN209401774U

CN209401774U - A kind of cylinder battery core winding needle construction

Info

Publication number: CN209401774U
Application number: CN201822037762.5U
Authority: CN
Inventors: 李学军; 李雪彬
Original assignee: Dongguan Hongyu Intelligent Equipment Co Ltd
Current assignee: Dongguan Hongyu Intelligent Equipment Co Ltd
Priority date: 2018-12-06
Filing date: 2018-12-06
Publication date: 2019-09-17
Anticipated expiration: 2028-12-06

Abstract

The utility model relates to a kind of cylindrical battery core winding needle constructions, cylindrical core coil needle includes outer volume needle and the involute needle inside outer volume needle, outer volume needle is cylindrical and is made of left outside volume needle and right outer volume needle, involute needle is made of left inside volume needle and right involute needle, left outside volume needle, empty slot is equipped with inside right outer volume needle, left inside volume needle, right curls inward needle is respectively placed in left outside volume needle, in the empty slot of right outer volume needle, cylindrical battery core winding needle construction design is reasonable, outer volume needle is cylinder, the entrance that diaphragm and pole piece when winding are rotated along center is very steady, diaphragm and pole piece shake are small when high-speed winding, it can effectively improve production efficiency, and fluctuation it is small can by the tension of pole piece and diaphragm be arranged it is smaller, meet battery core processing technology.

Description

A kind of cylinder battery core winding needle construction

Technical field

The utility model relates to lithium ion battery manufacturing fields, and in particular to a kind of cylinder battery core winding needle construction.

Background technique

Core coil needle is directly in contact with positive/negative plate, diaphragm in lithium ionic cell winding machine, rise positive/negative plate, every Film roll is generally in the shape of ellipse, diamond shape or flat around combined integrated effect, existing volume needle, these volume needles are due to edge Distance to center, which changes, to be even mutated, and the admission velocity of pole piece and diaphragm fluctuates when being wound along center axis rotation Larger, the especially fast pole piece of speed one and diaphragm shake is severe, and shake will affect the winding tension and degree of registration of pole piece and diaphragm, So in order to guarantee that the qualification rate of product can only carry out low-speed rolling around the demand of high-speed winding not being able to satisfy, in addition, due to this The structure design limitation for rolling up needle, it is inconvenient to lead to wind discharging, and diaphragm, pole piece are not easy to bring and be easy deviation into when winding, and unload Battery core need to be held by supporting plate when material and pull out needle in a manner of tail portion is blocked simultaneously, it may appear that it is bad existing to pull out that needle is bad, diaphragm collapses etc. As.

Utility model content

In view of the problems of the existing technology, the utility model provides a kind of cylindrical battery core winding needle construction, specific skill Art scheme is as follows:

A kind of cylinder battery core winding needle construction, the involute needle including outer volume needle and inside outer volume needle, outer volume needle are circle It cylindricality and is made of left outside volume needle and right outer volume needle, is spaced the material to be formed and be entered for diaphragm between left outside volume needle, right outer volume needle Seam, involute needle are made of left inside volume needle and right involute needle, and left outside volume needle, right outer roll up are equipped with empty slot inside needle, in left inside volume needle, the right side Volume needle is respectively placed in the empty slot of left outside volume needle, right outer volume needle.

As a kind of preferred embodiment of the utility model, the left outside volume needle, the right outer head for rolling up needle are equipped with locating piece.

As a kind of preferred embodiment of the utility model, the left outside volume needle, right outer volume needle peripheral side are equipped with for material unloading clamp The bit-avoiding slot that son penetrates, there are two be oppositely arranged bit-avoiding slot.

The utility model has the beneficial effects that cylindrical battery core winding needle construction design is rationally, outer volume needle is cylinder, along center The entrance of diaphragm and pole piece is very steady when rotation winding, and diaphragm and pole piece shake are small when high-speed winding, can effectively improve production Efficiency, and fluctuate it is small can by the tension of pole piece and diaphragm be arranged it is smaller, meet battery core processing technology.

Detailed description of the invention

Fig. 1 is the cross-sectional structure schematic diagram of the utility model structure；

Fig. 2 is structure flow chart when the utility model structure uses；

Fig. 3 is flow diagram when the utility model structure uses.

Specific embodiment

With reference to the accompanying drawing, specific embodiments of the utility model will be further explained:

It is in the description of the present invention, it should be noted that term " center ", "upper", "lower", "left", "right", " perpendicular Directly ", the orientation or positional relationship of the instructions such as "horizontal", "inner", "outside" is to be based on the orientation or positional relationship shown in the drawings, and is only For ease of description the utility model and simplify description, rather than the position of indication or suggestion meaning or element must have it is specific Orientation, be constructed and operated in a specific orientation, therefore should not be understood as limiting the present invention.

In the description of the present invention, it should be noted that unless otherwise clearly defined and limited, term " is pacified Dress ", " connected ", " connection " shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or integrally Connection；It can be mechanical connection, be also possible to be electrically connected；Can be directly connected, can also indirectly connected through an intermediary, It can be the connection inside two elements.For the ordinary skill in the art, it is above-mentioned that concrete condition understanding can be regarded The concrete meaning of term in the present invention.

As shown in Figure 1, a kind of cylinder battery core winding needle construction, the involute needle including outer volume needle and inside outer volume needle, Outer volume needle is cylindrical and is made of left outside volume needle 11 and right outer volume needle 12, is spaced between left outside volume needle 11, right outer volume needle 12 The material seam 13 entered for diaphragm is formed, involute needle is made of left inside volume needle 21 and right involute needle 22, and outer volume needle and involute needle are all pacified Mounted in volume needle stand, volume needle stand is provided with the mobile power unit of the inside and outside volume needle of driving, power unit be cylinder or motor or other Power source, left outside volume needle 11, right outer roll up are equipped with empty slot 14 inside needle 12, left inside volume needle 21, right involute needle 22 are respectively corresponded and be placed in Outside left outside volume needle 11, the right side in the empty slot 14 of volume needle 12, when empty slot 14 facilitates left inside volume needle 21, the interior shifting of right involute needle 22 or moves outside not It can the left outside volume needle 11 of interference and collision, right outer volume needle 12.

Specifically, the head of left outside volume needle 11, right outer volume needle 12 is equipped with locating piece 15, locating piece 15 is inserted when rolling up needle winding Into corresponding location hole, guarantee the Relative vertical degree of outer volume needle, and left outside volume needle 11, right outer volume 12 peripheral side of needle are equipped with for unloading The bit-avoiding slot 16 that feed collet 3 penetrates, for bit-avoiding slot 16 there are two being oppositely arranged, easy-unloading clip 3 enters diaphragm when preventing from pulling out needle It is taken away by volume needle and collapses problem with diaphragm.

As shown in Figures 2 and 3, using the method for cylindrical battery core winding needle construction, include the following steps,

1. 4 head of diaphragm enters in material seam 13, left inside volume needle 21, right involute needle 22, which move inward, clamps 4 head of diaphragm； 2. pole piece 5 is brought into the movement of left and right diaphragm 4, pole piece 5 tentatively winds the peripheral side of left outside volume needle 11, right outer volume needle 12；③ After left outside volume needle 11, right outer volume needle 12 rotate counterclockwise multi-turn, pole piece 5, diaphragm 4, which wind one, becomes battery core；4. left inside volume needle 21, right involute needle 22 is mobile outward unclamps diaphragm 4, and left outside volume needle 11, right outer volume needle 12 move inward and close up, and battery core rides over On outer volume needle；5. discharging clip 3 protrudes into bit-avoiding slot 16 and clamps battery core both sides extract battery core from volume needle out, prevent from pulling out needle after Film is taken away by volume needle and is collapsed with diaphragm；6. discharging clip 3 clamps battery core and is moved to precompressed station, discharging clip is by battery core to both sides It opens, while battery core is pushed down in the movement of two pressure plates 6 up and down；Battery core is compressed 7. being moved in two pressure plates 6.

It, cannot the above content is specific preferred embodiment further detailed description of the utility model is combined Assert that the specific implementation of the utility model is only limited to these instructions, for the ordinary skill of the utility model technical field For personnel, without departing from the concept of the premise utility, a number of simple deductions or replacements can also be made, should all regard To belong to the protection scope of the utility model.

Claims

1. a kind of cylinder battery core winding needle construction, it is characterised in that: the involute needle including outer volume needle and inside outer volume needle, outside Volume needle is cylindrical and is made of left outside volume needle and right outer volume needle, is spaced to be formed for diaphragm between left outside volume needle, right outer volume needle The material of entrance stitches, and involute needle is made of left inside volume needle and right involute needle, is equipped with empty slot inside left outside volume needle, right outer volume needle, left inside Volume needle, right involute needle are respectively placed in the empty slot of left outside volume needle, right outer volume needle.

2. a kind of cylindrical battery core winding needle construction according to claim 1, it is characterised in that: the left outside volume needle, the right side are outer The head for rolling up needle is equipped with locating piece.

3. a kind of cylindrical battery core winding needle construction according to claim 1, it is characterised in that: the left outside volume needle, the right side are outer Volume needle peripheral side is equipped with the bit-avoiding slot penetrated for discharging clip, and there are two be oppositely arranged bit-avoiding slot.