CN212793262U

CN212793262U - Pre-pressing type pole piece cutting mechanism of square lithium battery sheet-making winder

Info

Publication number: CN212793262U
Application number: CN202020780101.6U
Authority: CN
Inventors: 李志军; 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: 2021-03-26
Anticipated expiration: 2030-05-12

Abstract

The utility model relates to a pre-pressing type pole piece cutting mechanism of a square lithium battery sheet-making winder, which comprises a cutter seat, a slide rail, a slide block, an upper cutter frame, a lower cutter frame, an upper cutter, a lower cutter, a cutter cylinder, a pole piece pressing plate, an upper cutter frame spring and a spring pressing plate, wherein when the pre-pressing type pole piece cutting mechanism works, a pole piece penetrates between the pole piece pressing plate and the upper cutter frame, when the pole piece needs to be cut, the cutter cylinder starts to be in a retraction state, and at the moment, one end of the upper cutter frame spring pushes against the spring; the other end is supporting the top rest, and the spring can drive the top rest in advance and move towards the inboard and paste the pole piece, lets the pole piece keep stable state, and the cylinder body area of waiting to cut off the sword cylinder drives the bottom rest and is moved to the inboard and target in place when the pole piece is finally compressed tightly, and the pole piece is cut off to top cutter, bottom cutter combined action, improves the precision and the stability of cutting the pole piece, avoids the pole piece to receive the impact suddenly and the fracture damage.

Description

Pre-pressing type pole piece cutting mechanism of square lithium battery sheet-making winder

Technical Field

The utility model relates to a lithium ion battery manufacture equipment field, concretely relates to pre-compaction pole piece shutdown mechanism of square lithium cell film-making winder.

Background

The sheet-making winder is a mechanical device for manufacturing the lithium ion battery, the lithium ion battery is composed of a positive plate, a negative plate, a diaphragm, a pole ear and the like, the lithium ion battery is divided into a square shape and a cylindrical shape according to the shape, so the sheet-making winder can be classified into the square sheet-making winder and the cylindrical sheet-making winder, the length of the pole piece required by each type of battery is different, the pole piece is cut by a cutter cutting mechanism according to different set parameters after being fed into a winding area for winding, and the cutter cutting mechanism on the market at present has the defects that the pole piece is directly pressed on the surface of an upper cutter frame by a pole piece cutter pressing plate in a straightening state in the cutting process, so that the pole piece which is originally centered in the cutter mechanism deviates to the upper cutter frame surface, and the rapid impact has risks of pressure damage, fracture and the like on the pole piece, there may be a problem of inaccurate incision.

SUMMERY OF THE UTILITY MODEL

There is the defect to prior art, the utility model provides a preforming pole piece shutdown mechanism of square lithium cell film-making winder, concrete technical scheme is as follows:

a pre-pressing type pole piece cutting mechanism of a square lithium battery sheet-making winder comprises a cutter seat, a slide rail, a slide block, an upper cutter frame, a lower cutter frame, an upper cutter, a lower cutter, a cutter cylinder, a pole piece pressing plate, an upper cutter frame spring and a spring pressing plate, wherein the slide rail is arranged above the cutter seat and is connected with the slide block in a sliding manner; the other end is against the upper tool rest.

As an optimized scheme of the utility model, a set of slider has two sliders, and two sliders are installed respectively in upper knife rest left and right sides, lower knife rest left and right sides.

As an optimized scheme of the utility model, installation linear bearing in the lower tool rest, linear bearing suit guide bar, pole piece clamp plate is connected to the guide bar front end, installation buffer spring between lower tool rest and the pole piece clamp plate.

As an optimized proposal of the utility model, the linear bearing and the guide rod are respectively 3, and the buffer spring is 4.

As a preferred proposal of the utility model, the utility model also comprises a dust absorption pipe.

As the utility model discloses a preferred scheme, the stopper is installed to cutter seat side, stopper the place ahead installation spring clamp plate, and the top rest avris is located the stopper.

Has the advantages that: when the pre-pressing type pole piece cutting mechanism works, firstly, the cutter cylinder is in an extending state, the pole piece penetrates between the pole piece pressing plate and the upper knife rest, when the pole piece needs to be cut, the cutter cylinder starts to be in a retracting state, and at the moment, one end of the upper knife rest spring pushes against the spring pressing plate; the other end is supporting the top rest, and the spring can drive the top rest in advance and move towards the inboard and paste the pole piece, lets the pole piece keep stable state, and when waiting the cylinder body of cutter cylinder to drive the bottom rest and move to the inboard and target in place, the pole piece is by pole piece clamp plate, top rest final compressing tightly, and the pole piece is cut off to top knife, bottom knife combined action, improves the precision and the stability of cutting the pole piece, avoids the pole piece to receive the impact suddenly and fracture damage.

Drawings

Fig. 1 is a perspective view of the present invention viewed from above;

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

fig. 3 is an exploded view of the present invention;

fig. 4 is a perspective view of the upper knife rest, the lower knife rest, the upper cutter and the lower cutter of the utility model when being matched;

fig. 5 is an exploded view of the lower tool post, linear bearing, buffer spring, and pole piece pressing plate of the present invention.

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. 1 to 4, a pre-pressing type pole piece cutting mechanism of a square lithium battery sheet-making winder comprises a cutter base 1, a slide rail 2, a slide block 3, an upper cutter frame 4, a lower cutter frame 5, an upper cutter 6, a lower cutter 7, a cutter cylinder 8, a pole piece pressing plate 9, an upper cutter frame spring 10 and a spring pressing plate 11, wherein the slide rail 2 is installed above the cutter base 1, the slide rail 2 is connected with the slide block 3 in a sliding manner, the slide block 3 is divided into two groups, one group of slide block is fixedly installed on the upper cutter frame 4, the other group of slide block 3 is fixedly installed on the lower cutter frame 5, the upper cutter 6 is fixedly installed at the bottom of the upper cutter frame 4, the lower cutter 7 is fixedly installed at the bottom of the lower cutter frame 5, the pole piece pressing plate 9 is connected at the front end of the lower cutter frame 5, a cylinder body of the cutter cylinder 8 is installed at, the side of the upper tool rest 4 is positioned in the limiting block 12, and one end of the upper tool rest spring 10 is propped against the spring pressing plate 11; the other end of the cutter cylinder 8 is propped against the upper tool rest 4, under the normal state, the cutter cylinder 8 is in the extending state, namely the cylinder body and the piston rod of the cutter cylinder 8 are in the longest stroke state, and the upper tool rest spring 10 is compressed by the upper tool rest 4.

Specifically, a set of slider has two sliders 3, and there are 4 sliders in total, and two sliders are installed in the 4 left and right sides of top rest, and two sliders are installed in 5 left and right sides of bottom rest, and corresponding slide rail 2 has 2, and the double track is said and is led more steadily accurately, and in addition, preforming pole piece shutdown mechanism still includes dust absorption pipe 16, in time siphons away the dust, prevents to cut back metal piece and to electric core influence.

As shown in fig. 5, a linear bearing 13 is installed in the lower tool rest 5, a guide rod 14 is sleeved on the linear bearing 13, the front end of the guide rod 14 is connected with the pole piece pressing plate 9, a buffer spring 15 is installed between the lower tool rest 5 and the pole piece pressing plate 9, the number of the linear shafts, 13 and the number of the guide rods 14 are preferably 3 respectively, the number of the buffer springs 15 is preferably 4, and a buffer guide structure with the linear bearing 13, the guide rod 14 and the buffer spring 15 matched with each other is adopted, so that when the pole piece pressing plate 9 moves to press the pole piece, the buffer spring 15 generates a buffer effect to better press and.

The utility model discloses the theory of operation: firstly, in a normal state, a cutter cylinder 8 is in an extending state, an upper cutter frame spring 10 is compressed by an upper cutter frame 4 in advance to have elasticity, a pole piece pressing plate 9 is separated from the upper cutter frame 4, a pole piece penetrates between the pole piece pressing plate 9 and the upper cutter frame 4, when the pole piece needs to be cut, the cutter cylinder 8 starts to be in a retracting state (the air inlet and outlet direction of the cylinder is changed), and at the moment, one end of the upper cutter frame spring 10 is propped against a spring pressing plate 11; the other end is supporting upper knife rest 4, no longer has external force compression upper knife rest spring 10, and upper knife rest spring 10 can reset and drives upper knife rest 4 in advance and remove and paste the pole piece, and the pole piece can remain stable state, and the cylinder body of treating the cutter cylinder drives lower knife rest 5 and moves to the inboard when targetting in place, and the pole piece is finally compressed tightly, goes up cutter 6, lower cutter 7 combined action and cuts off the pole piece, improves the precision and the stability of cutting the pole piece, avoids the pole piece to receive the impact suddenly and the fracture damage.

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 pre-compaction pole piece shutdown mechanism of square lithium cell film-making winder which characterized in that: the cutting machine comprises a cutter seat, a slide rail, two groups of slide blocks, an upper cutter frame, a lower cutter frame, an upper cutter, a lower cutter, a cutter cylinder, a pole piece pressing plate, an upper cutter frame spring and a spring pressing plate, wherein the slide rail is arranged above the cutter seat and is connected with the slide blocks in a sliding manner; the other end is against the upper tool rest.

2. The pre-pressing type pole piece cutting mechanism of the square lithium battery sheet-making winder according to claim 1, characterized in that: a set of slider has two sliders, and two sliders are installed respectively in upper knife rest left and right sides, lower knife rest left and right sides.

3. The pre-pressing type pole piece cutting mechanism of the square lithium battery sheet-making winder according to claim 1, characterized in that: a linear bearing is installed in the lower tool rest, the linear bearing is sleeved with a guide rod, the front end of the guide rod is connected with a pole piece pressing plate, and a buffer spring is installed between the lower tool rest and the pole piece pressing plate.

4. The pre-pressing type pole piece cutting mechanism of the square lithium battery sheet-making winder according to claim 3, characterized in that: the number of the linear bearings and the number of the guide rods are respectively 3, and the number of the buffer springs is 4.

5. The pre-pressing type pole piece cutting mechanism of the square lithium battery sheet-making winder according to claim 1, characterized in that: also comprises a dust suction pipe.

6. The pre-pressing type pole piece cutting mechanism of the square lithium battery sheet-making winder according to claim 1, characterized in that: a limiting block is arranged on the side of the cutter seat, a spring pressing plate is arranged in front of the limiting block, and the side of the upper cutter frame is located in the limiting block.