CN216462056U

CN216462056U - Special-shaped pole piece cutter mechanism

Info

Publication number: CN216462056U
Application number: CN202122576563.3U
Authority: CN
Inventors: 胡文; 代昊
Original assignee: Ningde Zhongneng Electronic Equipment Co ltd
Current assignee: Ningde Zhongneng Electronic Equipment Co ltd
Priority date: 2021-10-26
Filing date: 2021-10-26
Publication date: 2022-05-10
Anticipated expiration: 2031-10-26

Abstract

The utility model relates to a special-shaped pole piece cutter mechanism which comprises an upper cutter and a lower cutter which are arranged up and down correspondingly, wherein a cutting edge is arranged at the front end of the lower cutter, a knife edge matched with the cutting edge is arranged at the front end of the upper cutter, the cutting edge comprises a straight edge, and circular arc cutting edges are respectively arranged on the left side and the right side of the straight edge. The pole piece cutting device is simple and reasonable in structural design, the arc cutting edge is additionally arranged on the lower cutter, the problem of corner folding frequently occurring in the pole piece cutting process is solved, the cutting quality is improved, and powder falling is reduced.

Description

Special-shaped pole piece cutter mechanism

The technical field is as follows:

the utility model relates to a special-shaped pole piece cutter mechanism.

The background art comprises the following steps:

the pole piece is used as an important component of the lithium battery and plays an important role in the performance of the battery. The pole piece is manufactured by coating pole powder materials on the surfaces of two sides of a base material, die-cutting the coated base material to obtain the pole piece with required size and shape, and cutting the raw material of the pole piece to form the pole piece in the manufacturing process of the pole piece, so that a cutter mechanism is required to cut off the pole piece.

In the prior art, after the battery pole piece is cut, the pole piece is always subjected to corner folding and powder falling, so that the rejection rate is increased, the production efficiency is influenced, when dust is mixed into the battery core along with the pole piece, the side reaction generated inside the battery can be caused, the self-discharge rate is increased, even, the internal short circuit can be caused, and the potential safety hazard is very large.

The utility model has the following contents:

the utility model aims to solve the problems in the prior art, and provides a special-shaped pole piece cutter mechanism which is reasonable in design and good in slitting effect.

In order to achieve the purpose, the utility model adopts the technical scheme that: the utility model provides a dysmorphism pole piece cutter mechanism, includes upper cutter and lower cutter that upper and lower correspondence set up, the front end of cutter is equipped with the blade down, the front end of going up the cutter is equipped with the edge of a knife with blade matched with, the blade includes the straight flange blade, the left and right sides of straight flange blade is equipped with the circular arc blade respectively.

Furthermore, the upper cutter is driven to lift by a lifting mechanism positioned above the upper cutter, the lifting mechanism comprises a lifting plate, the lifting plate is driven to move up and down by a lifting cylinder positioned above the lifting plate, and the upper cutter is fixedly arranged on the bottom surface of the lifting plate.

Furthermore, a T-shaped clamping groove is formed in the middle of the top surface of the lifting plate; the telescopic end of the lifting cylinder is connected with a connecting rod which is vertically arranged, the lower end of the connecting rod is provided with a T-shaped connecting end, and the connecting end is clamped into the T-shaped clamping groove from the front end opening of the T-shaped clamping groove.

The lower cutter is fixedly arranged on the top surface of the cutter holder; the lifting cylinder is vertically arranged in the middle of the top surface of the tool rest.

Furthermore, the top surface of the cutter holder is provided with first vertical guide rods on the left side and the right side of the lower cutter respectively; the left end and the right end of the lifting plate are respectively provided with a first vertical guide sleeve, and the first vertical guide sleeves are in sliding fit with the first vertical guide rods.

Further, a material pressing plate is arranged on the inner side of the edge of the upper cutter, the material pressing plate is in vertical sliding fit with the upper cutter, and the bottom surface of the material pressing plate is located below the bottom surface of the upper cutter.

Furthermore, the left end and the right end of the pressure plate are respectively screwed with a vertically arranged sliding bolt; the lifting plate is characterized in that vertical through holes are formed in the left end and the right end of the lifting plate respectively, limiting guide sleeves in sliding fit with the sliding bolts are fixedly installed in the vertical through holes, the vertical through holes extend upwards from the upper ends of the limiting guide sleeves, and limiting convex rings used for being abutted to the bolt heads of the sliding bolts are arranged at the tops of the limiting guide sleeves.

Furthermore, a pair of second vertical guide rods distributed left and right is fixed on the top surface of the pressure plate, and a second vertical guide sleeve in sliding fit with the second vertical guide rods is arranged on the lifting plate.

Furthermore, the rear side face of the lifting plate is fixedly provided with a dust collection seat, the front side face of the dust collection seat is provided with a dust collection notch right facing the knife edge, the right end face of the dust collection seat is provided with a connecting hole communicated with the dust collection notch, and the connecting hole is connected with a negative pressure dust collection pipe.

Compared with the prior art, the utility model has the following effects: the pole piece cutting device is simple and reasonable in structural design, the arc cutting edge is additionally arranged on the lower cutter, the problem of corner folding frequently occurring in the pole piece cutting process is solved, the cutting quality is improved, and powder falling is reduced.

Description of the drawings:

FIG. 1 is a first perspective view of an embodiment of the present invention;

FIG. 2 is a schematic perspective view of the second embodiment of the present invention;

FIG. 3 is a schematic front sectional view of an embodiment of the present invention;

FIG. 4 is a schematic side sectional configuration of an embodiment of the present invention;

FIG. 5 is a schematic view showing the construction of a lower cutter in the embodiment of the present invention;

FIG. 6 is a schematic view showing the configuration of an upper cutter in the embodiment of the present invention;

fig. 7 is a schematic structural view of a dust suction base in an embodiment of the present invention.

The specific implementation mode is as follows:

the present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.

In the description of the present invention, it is to be understood that the terms "longitudinal", "lateral", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on those shown in the drawings, are merely for convenience of description of the present invention, and do not indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be construed as limiting the present invention.

As shown in fig. 1 to 7, the special-shaped pole piece cutter mechanism of the present invention comprises an upper cutter 1 and a lower cutter 2 which are arranged in an up-down corresponding manner, wherein a cutting edge is arranged at the front end of the lower cutter 1, a cutting edge 3 which is matched with the cutting edge is arranged at the front end of the upper cutter 2, the cutting edge of the lower cutter 2 is adapted to the cutting edge of the upper cutter 1 in shape, the cutting edge comprises a straight edge 4 extending along a transverse direction, and arc cutting edges 5 are respectively arranged at the left side and the right side of the straight edge 4; the special-shaped lower cutter is formed by the straight edge and the arc edges on the two sides, and the problem of corner folding frequently occurring in the pole piece cutting process is solved by the arc edges.

In this embodiment, the upper cutter 1 is driven to ascend and descend by a lifting mechanism located above the upper cutter, the lifting mechanism comprises a lifting plate 6 horizontally arranged, the lifting plate 6 is driven to move up and down by a lifting cylinder 7 located above the lifting plate, and the upper cutter 1 is fixedly installed on the bottom surface of the lifting plate 6 through a fastener.

In this embodiment, a T-shaped slot 8 is formed in the middle of the top surface of the lifting plate 6; the flexible end of lift cylinder 7 is connected with the connecting rod 9 of vertical setting, the lower extreme of connecting rod 9 is equipped with the connection end 10 of T type form, connection end 10 is gone into from the front end opening card of T type draw-in groove 8. The T-shaped connecting end is clamped in the T-shaped clamping groove, so that the connecting rod and the lifting plate are convenient to assemble and disassemble.

In this embodiment, the pole piece cutter mechanism further includes a cutter holder 11 and a cutter holder 12 fixed on the top surface of the cutter holder 11, and the lower cutter 2 is fixedly mounted on the top surface of the cutter holder 11; the lifting cylinder 7 is vertically arranged in the middle of the top surface of the tool rest 12.

In this embodiment, the top surface of the tool apron 11 is provided with first vertical guide rods 13 on the left and right sides of the lower cutter respectively, and the upper ends of the first vertical guide rods 13 are connected with the tool rest 12; the left end and the right end of the lifting plate 6 are respectively provided with a first vertical guide sleeve 14, and the first vertical guide sleeves 14 are in sliding fit with a first vertical guide rod 13 so as to guide the lifting plate to move up and down and improve the moving precision.

In this embodiment, a pressure plate 15 is arranged on the inner side of the edge of the upper cutter 1, the pressure plate 15 is in vertical sliding fit with the upper cutter 1, the bottom surface of the pressure plate 15 is located below the bottom surface of the upper cutter 1, the pressure plate 15 is located right above the lower cutter 2, and the shape of the pressure plate 15 is adapted to the shape of the lower cutter 2 and used for pressing a pole piece in cooperation with the lower cutter. During operation, the pressure plate 15 and the upper cutter 1 move downwards together under the driving of the lifting plate 6, the pole piece is firstly pressed on the lower cutter 2 by the pressure plate 15, then the upper cutter 1 continues to move downwards, and the upper cutter 1 is matched with the cutting edge of the lower cutter 2 through the cutting edge to cut off the pole piece.

In this embodiment, the left and right ends of the pressure plate 15 are respectively screwed with vertically arranged sliding bolts 16; vertical through holes are formed in the left end and the right end of the lifting plate 6 respectively, the sliding bolt penetrates through the vertical through holes, a limiting guide sleeve 17 in sliding fit with the sliding bolt 16 is fixedly installed in each vertical through hole, the upper end of each limiting guide sleeve 17 extends upwards to form the vertical through hole, and a limiting convex ring 18 used for being abutted to the bottom surface of the bolt head of the sliding bolt 16 is arranged at the top of each limiting guide sleeve 17. When the device is not in operation, the limiting convex ring 18 at the top of the limiting guide sleeve 17 is abutted against the bottom surface of the bolt head of the sliding bolt 16, and at the moment, the limiting guide sleeve 17 supports the pressure plate 15 through the sliding bolt 16, so that the pressure plate 15 is kept in a suspended state; after the lifting plate 6 drives the pressure plate 15 to move downwards to press the pole piece, the upper cutter 1 and the pressure plate 15 generate relative movement along with the continuous downward movement of the lifting plate 6, the sliding bolt 16 plays a certain guiding role, and at the moment, the bolt head of the sliding bolt 16 is separated from the limiting convex ring 18.

In this embodiment, a pair of second vertical guide rods 19 distributed left and right is fixed on the top surface of the pressure plate 15, and a second vertical guide sleeve 20 in sliding fit with the second vertical guide rods 19 is arranged on the lifting plate 6; the second vertical guide sleeve and the second vertical guide rod are utilized, so that the vertical movement of the pressure plate can be guided, and the up-and-down movement precision is improved.

In this embodiment, a dust suction base 21 is fixedly installed on the rear side surface of the lifting plate 6, a dust suction notch 22 facing the knife edge is formed in the front side surface of the dust suction base 21, a connection hole 23 communicated with the dust suction notch 22 is formed in the right end surface of the dust suction base 21, the connection hole 23 is connected with a negative pressure dust suction pipe 24, the negative pressure dust suction pipe is connected with a negative pressure generating device (not shown in the figure), and dust generated by cutting off the pole piece is sucked away by using negative pressure.

In the embodiment, the cutting edge of the lower cutter and the cutting edge of the upper cutter are staggered front and back, and the side walls of the lower cutter and the side walls of the upper cutter are tightly attached during working.

In the embodiment, when the device works, a pole piece is conveyed between an upper cutter and a lower cutter, a lifting cylinder 7 drives a lifting plate 6 to vertically move downwards through a connecting rod 8, the lifting plate 6 drives the upper cutter 1 and a pressure plate 15 to synchronously move downwards, the pressure plate 15 presses the pole piece on the lower cutter 2 firstly, then the upper cutter 1 continues to move downwards, and the upper cutter 1 is matched with a straight edge 4 and an arc edge 5 of the lower cutter 2 through a cutter edge 3 to cut off the pole piece; and finally, the lifting cylinder 7 drives the upper cutter 1 and the material pressing plate 15 to reset upwards through the lifting plate 6. Traditional battery pole piece cutter is the rectangle form, and the blade is the right angle form promptly, and the battery pole piece surely goes out the back and can appear the pole piece edge dog-ear condition of crumpling. The utility model adopts a new cutting edge structure formed by a straight edge cutting edge and an arc cutting edge (namely, the edges at the two ends of the cutting edge have arc angles), thereby solving the problem of corner folding of the pole piece.

If the utility model discloses or relates to parts or structures which are fixedly connected to each other, the fixedly connected parts can be understood as follows, unless otherwise stated: a detachable fixed connection (for example using bolts or screws) is also understood as: non-detachable fixed connections (e.g. riveting, welding), but of course, fixed connections to each other may also be replaced by one-piece structures (e.g. manufactured integrally using a casting process) (unless it is obviously impossible to use an integral forming process).

In addition, terms used in any technical solutions disclosed in the present invention to indicate positional relationships or shapes include approximate, similar or approximate states or shapes unless otherwise stated.

Any part provided by the utility model can be assembled by a plurality of independent components or can be manufactured by an integral forming process.

Finally, it should be noted that: the above examples are only intended to illustrate the technical solution of the present invention and not to limit it; although the present invention has been described in detail with reference to preferred embodiments, those skilled in the art will understand that: modifications to the specific embodiments of the utility model or equivalent substitutions for parts of the technical features may be made; without departing from the spirit of the present invention, it is intended to cover all aspects of the utility model as defined by the appended claims.

Claims

1. The utility model provides a dysmorphism pole piece cutter mechanism, includes upper and lower corresponding last cutter and the lower cutter that sets up, the front end of cutter is equipped with the blade down, the front end of going up the cutter be equipped with blade matched with edge of a knife, its characterized in that: the cutting edges comprise straight edge cutting edges, and arc cutting edges are arranged on the left side and the right side of each straight edge cutting edge respectively.

2. The profiled pole piece cutter mechanism of claim 1, wherein: the upper cutter is driven to lift by a lifting mechanism positioned above the upper cutter, the lifting mechanism comprises a lifting plate, the lifting plate is driven to move up and down by a lifting cylinder positioned above the lifting plate, and the upper cutter is fixedly arranged on the bottom surface of the lifting plate.

3. The profiled pole piece cutter mechanism of claim 2, wherein: a T-shaped clamping groove is formed in the middle of the top surface of the lifting plate; the telescopic end of the lifting cylinder is connected with a connecting rod which is vertically arranged, the lower end of the connecting rod is provided with a T-shaped connecting end, and the connecting end is clamped into the T-shaped clamping groove from the front end opening of the T-shaped clamping groove.

4. The profiled pole piece cutter mechanism of claim 2, wherein: the lower cutter is fixedly arranged on the top surface of the cutter holder; the lifting cylinder is vertically arranged in the middle of the top surface of the tool rest.

5. The profiled pole piece cutter mechanism of claim 4, wherein: the top surface of the cutter holder is provided with first vertical guide rods on the left side and the right side of the lower cutter respectively; the left end and the right end of the lifting plate are respectively provided with a first vertical guide sleeve, and the first vertical guide sleeves are in sliding fit with the first vertical guide rods.

6. The profiled pole piece cutter mechanism of claim 2, wherein: the inner side of the edge of the upper cutter is provided with a material pressing plate, the material pressing plate is in vertical sliding fit with the upper cutter, and the bottom surface of the material pressing plate is located below the bottom surface of the upper cutter.

7. The profiled pole piece cutter mechanism of claim 6, wherein: the left end and the right end of the pressure plate are respectively screwed with a vertically arranged sliding bolt; the lifting plate is characterized in that vertical through holes are formed in the left end and the right end of the lifting plate respectively, limiting guide sleeves in sliding fit with the sliding bolts are fixedly installed in the vertical through holes, the vertical through holes extend upwards from the upper ends of the limiting guide sleeves, and limiting convex rings used for being abutted to the bolt heads of the sliding bolts are arranged at the tops of the limiting guide sleeves.

8. The profiled pole piece cutter mechanism of claim 6, wherein: the top surface of the pressure plate is fixed with a pair of second vertical guide rods which are distributed left and right, and the lifting plate is provided with a second vertical guide sleeve which is in sliding fit with the second vertical guide rods.

9. The profiled pole piece cutter mechanism of claim 2, wherein: the dust collection device is characterized in that a dust collection seat is fixedly mounted on the rear side face of the lifting plate, a dust collection notch which is right opposite to the knife edge is formed in the front side face of the dust collection seat, a connecting hole communicated with the dust collection notch is formed in the right end face of the dust collection seat, and the connecting hole is connected with a negative pressure dust collection pipe.