CN211980797U

CN211980797U - Winding needle front supporting mechanism of square lithium battery sheet-making winding machine

Info

Publication number: CN211980797U
Application number: CN202020780091.6U
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: 2020-05-12
Filing date: 2020-05-12
Publication date: 2020-11-20
Anticipated expiration: 2030-05-12

Abstract

The utility model relates to a support mechanism before winding needle of square lithium battery slice-making winder, including main tributary support seat, a support plate, ejection cylinder, pull-back cylinder, rotor plate, branch support seat subassembly and rotation center axle, main tributary support seat fixed mounting is in the front of the big panel of slice-making winder, main tributary support seat front fixed mounting support plate, install ejection cylinder on the support plate, pull-back cylinder, rotor plate displacement support plate rear, rotor plate connection rotation center axle, the rotor plate is installed a plurality of branch support seat subassemblies, rotation center axle drive rotor plate rotate thereby make branch support seat subassembly enter different stations, ejection cylinder drive branch support seat subassembly ejection insert winding needle, pull-back cylinder drive branch support seat subassembly pull-back withdraw winding needle, use easy operation, convenient maintenance, can reduce the bad phenomenon that winding needle is not inserted in time or is pulled out and is returned, in addition, branch support seat subassembly structural design is reasonable, the winding needle can be well supported without deviation.

Description

Winding needle front supporting mechanism of square lithium battery sheet-making winding machine

Technical Field

The utility model relates to a lithium ion battery manufacture equipment field, concretely relates to support mechanism before square lithium cell film-making winder's book needle.

Background

The production winding machine is a mechanical device for manufacturing the lithium ion battery, the lithium ion battery comprises a positive electrode sheet, a negative electrode sheet, a diaphragm, a pole lug and the like, the lithium ion battery is divided into a square shape and a cylindrical shape according to the shape, so the production winding machine can be classified into a square production winding machine and a cylindrical production winding machine, as shown in figure 1, a winding area of the production winding machine is provided with three sets of winding needles corresponding to 3 working stations, namely a winding station A, a tail-closing rubberizing station B and an unloading station C, each set of winding needle mechanism rotates to different stations to complete different processes, the process to be completed by the winding station A is to penetrate the diaphragm into the winding needles and then wind the positive electrode sheet, the negative electrode sheet and the diaphragm into a whole to form an electric core preliminarily, the process to be completed by the tail-closing rubberizing station B is to rubberize the electric core conveyed from the winding station A to prevent the electric core from loosening preliminarily, the procedure to be completed by the unloading station C is to draw out the winding needle for unloading the battery core which is conveyed from the ending rubberizing station B and is rubberized.

In order to cooperate the book needle to rotate and switch the station and guarantee that it is more steady when rolling up the needle rotation, book needle the place ahead and install a supporting mechanism before rolling up the needle, supporting mechanism before rolling up the needle on the market now adopts the mode of carousel + cam to control the insertion and the returning of needle mouth (rolling up needle front support seat promptly), the defect of this kind of traditional mode lies in that the continuous friction of cam and carousel can produce iron fillings, there are risks such as short circuit to electric core, and because the cam wearing and tearing later stage precision is not enough, can take place to roll up the needle and not insert in time or extract the bad phenomenon of returning, the later maintenance is difficult, need frequently to change the cam and give the cost, the workman causes the burden, in addition, when rolling up the needle and being in coiling station A during operation, it coils the pole piece to roll up the needle, the rotational speed of diaphragm is very high.

SUMMERY OF THE UTILITY MODEL

There is the defect to prior art, the utility model aims to provide a convenient to use, maintain simple, but the square lithium cell film-making winder's of stable support book needle supporting mechanism before the book needle, concrete technical scheme is as follows:

the utility model provides a supporting mechanism before book needle of square lithium cell film-making winder, including the main tributary supporting seat, a supporting plate, ejecting cylinder, pull back the cylinder, the rotor plate, branch supporting seat subassembly and center of rotation axle, main tributary supporting seat fixed mounting is in the big panel the place ahead of film-making winder, main tributary supporting seat the place ahead fixed mounting backup pad, install ejecting cylinder in the backup pad, pull back the cylinder, rotor plate displacement backup pad rear, center of rotation axle is connected to the rotor plate, a plurality of branches supporting seat subassemblies are installed to the rotor plate, thereby center of rotation axle drive rotor plate rotates and makes branch supporting seat subassembly get into different stations, ejecting cylinder drive branch supporting seat subassembly is ejecting inserts a book needle, it pulls back cylinder drive branch supporting seat subassembly and withdraws a book needle.

As a preferred scheme of the utility model, the rotating plate is provided with 3 branch supporting seat assemblies, the rotating central shaft drives the rotating plate to rotate so as to enable the branch supporting seat assemblies to enter a winding station, a final rubberizing station and an unloading station, and when the branch supporting seat assemblies are positioned at the winding station; the ejection cylinder drives the branch supporting seat assembly to eject and insert the winding needle, and when the branch supporting seat assembly is displaced and positioned at the unloading station; the pull-back cylinder drives the branch supporting seat assembly to pull back and withdraw the winding needle.

As a preferred scheme of the utility model, ejecting cylinder piston rod installation top is pulled back cylinder piston rod installation and is drawn the piece.

As a preferred scheme, single branch supporting seat subassembly includes outer fixed cover, interior guide sleeve, the apparatus further comprises a rotating shaft, roll up the preceding supporting seat of needle, the kicking block, direction key strip and ball plunger, outer fixed cover fixed mounting is in the rotor plate, guide sleeve in the inside suit of outer fixed cover, interior guide sleeve internally mounted pivot, the supporting seat before the needle is rolled up in pivot one end installation, interior guide sleeve one end installation kicking block, interior guide sleeve mid-mounting direction key strip, the direction key strip is equipped with positioning groove, thereby ball plunger blocks the positioning groove location interior guide sleeve position of direction key strip.

As an optimized scheme of the utility model, the supporting seat is equipped with and supplies to convolute male slot before rolling up the needle.

As a preferred scheme of the utility model, there are 2 direction keybars.

The utility model has the advantages that: the ejection cylinder drives the branch supporting seat assembly to eject and insert the winding needle, the pull-back cylinder drives the branch supporting seat assembly to pull back and pull out the winding needle, the use and operation are simple, the maintenance is convenient, the bad phenomenon that the winding needle is not inserted or pulled back in time can be reduced, in addition, the branch supporting seat assembly is reasonable in structural design, the winding needle can be well supported, and the deviation can not occur.

Drawings

FIG. 1 is a schematic illustration of the positions of 3 stations in the winding area;

fig. 2 is a perspective view of the present invention;

fig. 3 is a top view of the present invention;

figure 4 is a perspective view of the present invention when installed in a winding area;

fig. 5 is a perspective view of the branch support base assembly of the present invention;

fig. 6 is a sectional view of the branch support base assembly of the present invention in the ejecting state and the retracting state, respectively.

Detailed Description

The following description of the embodiments of the present invention will be made with reference to the accompanying drawings:

in the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the indicated position or element must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood as appropriate by those of ordinary skill in the art.

As shown in fig. 2 to 4, a front support mechanism of a winding needle of a square lithium battery sheet winding machine comprises a main support seat 1, a support plate 2, an ejection cylinder 3, a pull-back cylinder 4, a rotary plate 5, a branch support seat assembly 6 and a rotary central shaft 7, wherein the main support seat 1 is fixedly arranged in front of a large panel 8 of the sheet winding machine, the support plate 2 is fixedly arranged in front of the main support seat 1, the ejection cylinder 3 and the pull-back cylinder 4 are arranged on the support plate, an ejection cylinder piston rod mounting top 3a is arranged on the ejection cylinder piston rod, a pull block 4a is arranged on the pull-back cylinder piston rod mounting, the pull block 4a is shaped, the rotary plate 5 is displaced behind the support plate 2, the rotary plate 5 is connected with the rotary central shaft 7, the rotary central shaft 7 extends into the large panel 8 and is connected with a rotary power mechanism, the rotary power mechanism can drive the rotary central, the rotating central shaft 7 drives the rotating plate 5 to rotate so that the branch support seat assembly 6 rotates to enter different stations, the ejection cylinder 3 drives the branch support seat assembly 6 to eject and insert the winding needle 9, and the pull-back cylinder 4 drives the branch support seat assembly 6 to pull back and withdraw the winding needle 9.

Specifically, the rotating plate 5 is provided with 3 branch support seat assemblies 6, the rotating central shaft 7 drives the rotating plate 5 to rotate, so that the branch support seat assemblies enter a winding station A, a tail end rubberizing station B and an unloading station C, the ejection cylinder 3 is located at the winding station A, the pull-back cylinder 4 is located at the unloading station C, and when the branch support seat assemblies 6 are located at the winding station A; the ejection cylinder 3 drives the branch supporting seat assembly 6 to eject and insert the winding needle 9, and when the branch supporting seat assembly 6 is displaced and positioned at the unloading station C; the pull-back cylinder 4 drives the branch support seat assembly 6 to pull back the withdrawing coiling needle 9.

As shown in fig. 5 and 6, the single branch support base assembly 6 includes an outer fixing sleeve 61, an inner guide sleeve 62, a rotating shaft 63, a winding needle front support base 64, a top block 65, a guide key strip 66 and a ball plunger 67, the outer fixing sleeve 61 is fixedly installed on the rotating plate 5, the inner guide sleeve 62 is sleeved inside the outer fixing sleeve 61, the rotating shaft 63 is installed inside the inner guide sleeve 62, the winding needle front support base 64 is installed at the front end of the rotating shaft 63, the winding needle front support base 64 is provided with a slot for winding insertion, the top block 65 is installed at the rear end of the inner guide sleeve 62, the guide key strip 66 is installed at the middle part of the

inner guide sleeve

62, 2 guide key strips 66 are provided, the guide key strip 66 is provided with a positioning, when the ejection cylinder 3 drives the branch support seat assembly 6 to eject and insert the winding needle 9, the ball plunger 67 blocks the positioning groove of the guide key strip 66 so as to position the inner guide shaft sleeve 62, and the state that the winding needle front support seat 64 is inserted into the winding needle cannot be changed under the influence of other external force when the station is changed.

The working principle is as follows: when the supporting seat assembly 6 is at the winding station A, the ejection cylinder drives the ejector 3a to extend, the ejector 3a pushes the ejector block 65, the inner guide shaft sleeve 62, the rotating shaft 63 and the winding needle front supporting seat 64 to move and extend, the front end of the winding needle is inserted into the winding needle front supporting seat 64, after the procedure of winding the battery cell is completed, the rotating plate 5 rotates to enable the branch supporting seat assembly 6 to enter the ending rubberizing station B, at the moment, because the ball plunger 67 blocks the positioning groove of the guide key strip 66, the front supporting seat 64 of the winding needle is still inserted into the winding needle, after the rubberizing procedure is completed, the rotating plate 5 rotates again to enable the branch supporting seat assembly 6 to enter the unloading station C, because the pulling block 4a is in a shape, therefore, the top block 65 is embedded into the pulling block 4a, the pulling cylinder drives the pulling block 4a to retract, the pulling block 4a pulls the top block 65, the inner guide sleeve 62, the rotating shaft 63 and the winding needle front support seat 64 to retract, and the winding needle front support seat 64 withdraws from the winding needle.

The above description is provided for the purpose of describing the present invention in more detail with reference to the preferred embodiments, and it should not be construed that the present invention is limited to these descriptions, and it will be apparent to those skilled in the art that the present invention can be implemented in many ways without departing from the spirit and scope of the present invention.

Claims

1. The utility model provides a supporting mechanism before square lithium cell film-making winder's book needle which characterized in that: including the main tributary support seat, the backup pad, ejection cylinder, pull back the cylinder, the rotor plate, branch support seat subassembly and rotation center axle, main tributary support seat fixed mounting is in the big panel the place ahead of film-making winder, main tributary support seat the place ahead fixed mounting backup pad, install ejection cylinder in the backup pad, pull back the cylinder, rotor plate displacement backup pad rear, the rotation center axle is connected to the rotor plate, a plurality of branch support seat subassemblies are installed to the rotor plate, thereby rotation center axle drive rotor plate rotates and makes branch support seat subassembly get into different stations, ejection cylinder drive branch support seat subassembly is ejecting to be inserted and rolls up the needle, pull back cylinder drive branch support seat subassembly and pull back and withdraw from a book needle.

2. The winding needle front supporting mechanism of the square lithium battery sheet winding machine according to claim 1, characterized in that: the rotating plate is provided with 3 branch supporting seat assemblies, the rotating central shaft drives the rotating plate to rotate so that the branch supporting seat assemblies enter a winding station, a tail gluing station and an unloading station, and when the branch supporting seat assemblies are positioned at the winding station; the ejection cylinder drives the branch supporting seat assembly to eject and insert the winding needle, and when the branch supporting seat assembly is displaced and positioned at the unloading station; the pull-back cylinder drives the branch supporting seat assembly to pull back and withdraw the winding needle.

3. The winding needle front supporting mechanism of the square lithium battery sheet winding machine according to claim 1 or 2, characterized in that: and the piston rod of the ejection cylinder is provided with an ejector head, and the piston rod of the ejection cylinder is pulled back to be provided with a pulling block.

4. The winding needle front supporting mechanism of the square lithium battery sheet winding machine according to claim 1, characterized in that: the single branch supporting seat component comprises an outer fixing sleeve, an inner guide shaft sleeve, a rotating shaft, a front supporting seat of a winding needle, a top block, a guide key strip and a ball plunger, the outer fixing sleeve is fixedly installed on the rotating plate, the inner guide shaft sleeve is sleeved inside the outer fixing sleeve, the rotating shaft is installed inside the inner guide shaft sleeve, the front supporting seat of the winding needle is installed at one end of the rotating shaft, the top block is installed at one end of the inner guide shaft sleeve, the guide key strip is installed in the middle of the inner guide shaft sleeve, the guide key strip is provided with a positioning groove, and the ball plunger blocks the position of the inner guide.

5. The winding needle front supporting mechanism of the square lithium battery sheet winding machine according to claim 4, characterized in that: the front support seat of the coiling needle is provided with a slot for coiling and inserting.

6. The winding needle front supporting mechanism of the square lithium battery sheet winding machine according to claim 4, characterized in that: there are 2 guide key bars.