CN211789339U - Cutting device and winding machine with same - Google Patents

Abstract

The utility model discloses a cutting device and have its winder, wherein, cutting device includes: the cutting device comprises a fixed seat and a first cutter, wherein the first cutter is arranged on the fixed seat in a sliding manner along a first direction; the second cutter is arranged on the movable seat, and the movable seat is arranged on the fixed seat in a sliding manner along a second direction; the first supporting piece is arranged between the fixed seat and the first cutter, and the first supporting piece pushes the first cutter along the first direction to enable the first cutter to be kept in contact with the second cutter. The utility model discloses a pole piece drive arrangement has solved effectively among the prior art and has cut the movable cutter of mechanism and the problem that produces the clearance between the fixed cutter.

Description

Cutting device and winding machine with same

Technical Field

The utility model relates to a lithium battery processing equipment technical field especially relates to a cutting device and have its winder.

Background

With the development of the fields of digital products, electric tools, electric vehicles, new energy vehicles and the like, the demand of lithium batteries is continuously increased, and the requirements on the lithium batteries are higher and higher. At present, a lithium battery cell is manufactured by winding and rubberizing structures of positive and negative pole pieces, diaphragms and the like which are stacked in a certain sequence through cell sheet-making and winding equipment through matching of a winding head, a feeding device, a diaphragm feeding device, a rubberizing device and the like. In the winding process, the cutting of the material is an important process, and particularly, the material is cut and separated by a cutting mechanism of the feeding device.

The existing cutting mechanism drives the movable cutter to move relative to the fixed cutter through the driving mechanism, so that the movable cutter and the fixed cutter are staggered and further cut the pole piece, but after long-term operation, the cutting position of the material on the cutting mechanism is easy to be uncertain in the cutting process, and a gap is generated between the movable cutter and the fixed cutter, so that the cut burrs of the cut pole piece are more, even the condition that the material cannot be cut off is generated, the quality of a lithium battery is influenced, and unnecessary loss is caused.

SUMMERY OF THE UTILITY MODEL

In view of this, the utility model provides a cutting device and have its winder for solve the problem that produces the clearance between the movable cutter of the mechanism that cuts among the prior art and the fixed cutter.

To achieve the above object, in one aspect, the cutting device of the present invention comprises: the first cutter is arranged on the fixed seat in a sliding manner along a first direction; the second cutter is arranged on the movable seat, and the movable seat is arranged on the fixed seat in a sliding manner along a second direction; the first supporting piece is arranged between the fixed seat and the first cutter, and the first supporting piece pushes the first cutter along a first direction to enable the first cutter to be kept in contact with the second cutter.

Preferably, the first support is an elastic member.

Preferably, the second cutter comprises a cutter part and a stopping part, and the stopping part is arranged on the cutter part and is always in contact with the first cutter.

Preferably, the cutting edge of the cutter portion and the cutting edge of the first cutter have an included angle therebetween.

Preferably, cutting device still includes hold-down mechanism, and hold-down mechanism includes briquetting and second support piece, and the briquetting movably sets up on the sliding seat, and second support piece sets up between briquetting and sliding seat, and the briquetting surpasss the blade of second cutter towards the surface of first cutter.

Preferably, the pressing block comprises a base body and a buffer piece, and the buffer piece is arranged on one side, facing the first cutting knife, of the base body.

Preferably, the side of the base body remote from the second cutting knife is provided with a guide surface.

Preferably, the fixing base is provided with a plurality of through-holes at interval, and the sliding seat includes first roof beam, second roof beam and a plurality of connecting rod, and a plurality of connecting rods wear to establish in a plurality of through-holes one-to-one, and the first end of a plurality of connecting rods is connected to first roof beam, and the second end of a plurality of connecting rods is connected to the second roof beam, and the second cutter setting is on the second roof beam.

Preferably, the cutting device further comprises a drive unit, the drive unit being arranged between the holder and the first beam.

On the other hand, the utility model also provides a winder, including cutting device, cutting device is the cutting device who has above-mentioned part or whole technical characteristic.

Implement the embodiment of the utility model provides a, will have following beneficial effect:

after the cutting device is adopted, the second cutter is attached to the first cutter under the supporting action of the first supporting piece, gaps between the first cutter and the second cutter are reduced, so that a cut surface is effectively sheared between the notch of the first cutter and the notch of the second cutter, burrs on the notch of a material are reduced, and the situation that the material is cut continuously is avoided.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

Wherein:

FIG. 1 is a schematic view of a cutting device according to an embodiment of the present invention;

FIG. 2 shows a schematic front view of the cutting apparatus of FIG. 1;

FIG. 3 shows a schematic view of the cutting apparatus of FIG. 1 with the first cutter removed;

FIG. 4 shows a schematic cross-sectional view A-A of the cutting apparatus of FIG. 2;

FIG. 5 shows a schematic view of the cutting device of FIG. 1 with the second knife falling; and

fig. 6 shows a schematic cross-sectional structure of the cutting device of fig. 5.

Wherein the following reference numerals are included:

100. a fixed seat; 200. fixing the cutter; 300. a movable seat; 310. a first beam; 320. a second beam; 330. a connecting rod; 400. a movable cutter; 410. a cutter part; 420. a stopper portion; 500. a rectangular spring; 600. a hold-down mechanism; 610. briquetting; 611. a substrate; 612. a buffer member; 613. a guide surface; 620. a spring; 700. a cylinder; 800. a guide member.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only 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.

As shown in fig. 1 to 6, the cutting device of the present embodiment includes a fixed base 100, a movable base 300, a fixed cutter 200 and a movable cutter 400, wherein the fixed cutter 200 can be slidably disposed on the fixed base 100 along a first direction, the movable base 300 can be slidably disposed on the fixed base 100 along a second direction, and the movable cutter 400 is disposed on the movable base 300 through a fastener such as a screw. When the movable base 300 slides relative to the fixed base 100, the cutting edges of the movable cutter 400 and the fixed cutter 200 are staggered to complete the cutting action. As shown in fig. 3, in the cutting apparatus of the present embodiment, a rectangular spring 500 is further disposed between the fixed base 100 and the fixed cutter 200, and in a state that the fixed cutter 200 is assembled to the fixed base 100, the rectangular spring 500 is compressed to generate an elastic force and can push the fixed cutter 200 in a first direction, so that the fixed cutter 200 is kept in contact with the movable cutter 400.

By applying the technical scheme of the embodiment, the movable cutter 400 is attached to the fixed cutter 200 under the elastic action of the rectangular spring 500, so that the gap between the movable cutter 400 and the fixed cutter 200 is reduced, and an effective shearing section is formed between the notch of the movable cutter 400 and the notch of the fixed cutter 200, thereby reducing burrs on the notch of a material and avoiding the occurrence of a situation that the material is continuously cut.

In order to uniformly distribute the supporting effect on the fixed cutter 200, the fixed cutter 200 of the present embodiment is formed in an elongated shape, and as shown in fig. 3, in the present embodiment, five rectangular springs 500 (one of which is not shown) are arranged in the extending direction of the fixed cutter 200.

In other embodiments not shown in the drawings, the rectangular spring may be replaced by a support member with other structural forms, as long as the support member can provide the fixed cutter with a joint action towards the movable cutter, so as to achieve the above-mentioned effects, such as an air spring using air pressure, a magnetic spring using the same poles of magnetic force to repel each other, and the like. The specific number of the supporting pieces can be adjusted according to the length and width specification of the fixed cutter, and the specific arrangement mode of the supporting pieces can be different array arrangement according to the length and width specification of the fixed cutter.

Specifically, as shown in fig. 1 to 6, the movable base 300 of the present embodiment includes a first beam 310, a second beam 320, and two connecting rods 330, wherein first ends of the two connecting rods 330 are connected to the first beam 310, and second ends of the two connecting rods 330 are connected to the second beam 320 to form a frame structure. The second cutter 400 is arranged on the second beam 320, two through holes are respectively arranged on two sides of the fixed seat 100, the two connecting rods 330 are correspondingly arranged in the two through holes in a penetrating manner, the air cylinder 700 is arranged between the fixed seat 100 and the first beam 310, and the two connecting rods 330 can slide in the two through holes by driving the first beam 310 to be close to or far away from the fixed seat 100, so that the movable cutter 400 can reciprocate relative to the fixed cutter 200, and the cutting function is realized.

It should be noted that in other embodiments not shown in the drawings, the cutting device may also be used as a driving unit through other forms of structures to realize the control of the movable cutter.

Preferably, as shown in fig. 1 to 4, the movable cutter 400 of the present embodiment includes a cutter portion 410 and a stopping portion 420, and the stopping portion 420 is disposed at both sides of the cutter portion 410 and is always in contact with the fixed cutter 200 when the movable cutter 400 reciprocates relative to the fixed cutter 200, so as to prevent the cutting edge of the fixed cutter 200 from exceeding the cutting edge of the cutter portion 410 in the first direction. Meanwhile, the fixed cutter 200, the cutter portion 410, and the stopper portion 420 can form an opening through which the material passes, and the stopper portion 420 can limit a moving range of the material in the cutting edge direction.

Further preferably, as shown in fig. 2, in the cutting apparatus of the present embodiment, the cutting edge of the cutter portion 410 is disposed to gradually approach the fixed cutter 200 from one side to the other side, so that an included angle is formed between the cutting edge of the cutter portion 410 and the cutting edge of the fixed cutter 200. Thus, when the movable cutter 400 cuts a material, one end of the cutter portion 410 closer to the fixed cutter 200 is preferentially contacted with the material, and the cut surface gradually moves to the other end along with the movement of the movable cutter 400, so that the area of the cut surface is reduced, and the cutting and the separation are convenient.

Preferably, as shown in fig. 1 to 6, the cutting device of the present embodiment further includes a pressing mechanism 600, specifically, the pressing mechanism 600 includes a pressing block 610 and a spring 620, the pressing block 610 is movably disposed on the second beam 320 through a pin, and the spring 620 is sleeved on the pin and located between the pressing block 610 and the second beam 320, so as to provide a supporting force for the pressing block 610 towards the fixed cutter 200. Briquetting 610 surpasss the blade of activity cutter 400 towards the surface of fixed cutter 200, like this, and briquetting 610 can be prior to activity cutter 400 and material contact when cutting device work to compress tightly fixedly in advance the material, cut again, avoid the material to take place to slide the skew at the in-process that cuts, influence the cutting face roughness.

Further, as shown in fig. 4, the pressing block 610 includes a base 611 and a buffering member 612, the buffering member 612 is disposed on a side of the base 611 facing the fixed cutter 200, and the buffering member 612 can reduce hard collision between the base 611 and the material to be cut, thereby avoiding damage to the material to be cut caused by the pressing action.

Preferably, as shown in fig. 4, a guide surface 613 is provided on a side of the base 611 away from the movable cutter 400, and a guide 800 is provided on the fixed base 100, wherein the guide surface 613 and the guide 800 can guide the material to be cut, so that the material to be cut can smoothly pass through the openings formed by the fixed cutter 200 and the movable cutter 400.

On the other hand, the utility model of this application still provides a winder, according to the utility model discloses an embodiment (not shown in the figure) of winder includes cutting device, and the cutting device of the winder of this embodiment is the cutting device who contains above-mentioned whole or partial technical structure. The winder of the embodiment has the advantage of flat cut surfaces of materials.

The above disclosure is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the scope of the invention, which is defined by the appended claims.

Claims (10)

1. A cutting device, comprising:

the cutting device comprises a fixed seat and a first cutter, wherein the first cutter is arranged on the fixed seat in a sliding manner along a first direction;

the second cutter is arranged on the movable seat, and the movable seat is arranged on the fixed seat in a sliding manner along a second direction;

the first supporting piece is arranged between the fixed seat and the first cutter, and the first supporting piece pushes the first cutter along the first direction to enable the first cutter to be kept in contact with the second cutter.

2. The cutting device of claim 1, wherein the first support member is a resilient member.

3. The cutting device as claimed in claim 1, wherein the second cutter includes a cutter portion and a stopper portion, the stopper portion being provided on the cutter portion and always being in contact with the first cutter.

4. The cutting device as claimed in claim 3, wherein the cutting edge of the cutter portion and the cutting edge of the first cutter are angled.

5. The cutting device as claimed in claim 1, wherein the cutting device further comprises a hold-down mechanism, the hold-down mechanism comprising a press block movably disposed on the movable seat and a second support member disposed between the press block and the movable seat, a surface of the press block facing the first cutter exceeding a cutting edge of the second cutter.

6. The cutting device as claimed in claim 5, wherein the pressing piece includes a base body and a buffer member, the buffer member being disposed on a side of the base body facing the first cutting blade.

7. The cutting device as claimed in claim 6 wherein the side of the substrate remote from the second cutter is provided with a guide surface.

8. The cutting device as claimed in claim 1, wherein the fixed base is provided with a plurality of through holes at intervals, the movable base comprises a first beam, a second beam and a plurality of connecting rods, the plurality of connecting rods are arranged in the plurality of through holes in a one-to-one correspondence manner, the first beam is connected with first ends of the plurality of connecting rods, the second beam is connected with second ends of the plurality of connecting rods, and the second cutter is arranged on the second beam.

9. The cutting device of claim 8, further comprising a drive unit disposed between the holder and the first beam.

10. A winding machine comprising cutting means, characterized in that said cutting means are as claimed in any one of claims 1 to 9.

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