CN220497874U - Die cutting device - Google Patents

Abstract

The utility model relates to the technical field of battery processing, in particular to a die cutting device. The die cutting device comprises a workbench, a cutting mechanism and a collecting mechanism, wherein the cutting mechanism is arranged on one side of the workbench along a first direction and is used for cutting pole pieces, the collecting mechanism is arranged on one side of the workbench, which is close to the cutting mechanism, and is used for collecting pole piece rim charge generated by the cutting mechanism when the pole pieces are cut, and a stop block is arranged in the collecting mechanism and is configured to convert the transverse falling of the pole piece rim charge into the longitudinal falling. Through set up the dog in collection device, the dog can adjust the form that pole piece rim charge got into collection mechanism, and then avoids pole piece rim charge to block up collection mechanism, and then improves the production efficiency of pole piece cross cutting.

Description

Die cutting device

Technical Field

The utility model relates to the technical field of battery processing, in particular to a die cutting device.

Background

A battery refers to a device that converts chemical energy into electrical energy in a cup, tank, or other container or portion of a composite container that contains an electrolyte solution and metal electrodes to generate an electrical current. Has a positive electrode and a negative electrode. The battery is used as an energy source, the current which has stable voltage, stable current, long-time stable power supply and little influence from the outside can be obtained, the battery has simple structure, convenient carrying, simple and easy charging and discharging operation, is not influenced by the outside climate and temperature, has stable and reliable performance, and plays a great role in various aspects in the life of the modern society.

In the production of batteries, a die cutting device is typically required to die cut the continuously coated pole pieces according to the size of the battery being produced. The cross cutting process can produce pole piece rim charge, for preventing the rim charge from influencing the going on of production process, to the processing of these pole piece rim charge, common there is processing method for, the pole piece rim charge that produces drops to collection mechanism because of the action of gravity in, because the pole piece rim charge that the cross cutting produced is banded, and collection structure's pipeline pipe diameter is less, in blanking stage, appears collecting mechanism frequent jam easily, leads to very frequent needs to shut down and carries out artifical mediation work, seriously reduces production efficiency.

Accordingly, there is a need for a die cutting device to solve the above problems.

Disclosure of Invention

The utility model aims to provide a die cutting device which can adjust the shape of pole piece rim charge entering a collecting mechanism, avoid the blockage of the collecting mechanism by the pole piece rim charge and further improve the production efficiency of pole piece die cutting.

In order to achieve the above object, the following technical scheme is provided:

a die cutting apparatus comprising:

a work table;

a cutting mechanism disposed at one side of the table in a first direction and configured to cut the pole piece;

the collecting mechanism is arranged on one side, close to the cutting mechanism, of the workbench and is used for collecting pole piece rim charge generated by cutting of the pole piece by the cutting mechanism, a stop block is arranged in the collecting mechanism and is configured to convert the transverse falling of the pole piece rim charge into the longitudinal falling.

Preferably, the collecting mechanism includes:

the stop block is arranged on one side of the material receiving box along the second direction, the pole piece rim charge extends along the second direction, and the first direction is different from the second direction;

and the collecting pipeline is arranged below the receiving box and is communicated with the receiving box.

Preferably, the length of the receiving box along the vertical direction is gradually reduced.

Preferably, the length of the top end of the receiving box in the second direction is greater than the length of the pole piece rim charge in the second direction.

Preferably, a surface of the stop block facing the inside of the material receiving box is a downward inclined surface structure.

Preferably, the distance from the stop block to the top end of the material receiving box is 1/4-1/3 of the length of the material receiving box along the vertical direction.

Preferably, the tail end of the collecting mechanism is connected with a negative pressure mechanism.

Preferably, a collecting box is arranged between the negative pressure mechanism and the collecting mechanism.

As an optimal scheme, one side of the collecting box, which is close to the negative pressure mechanism, is provided with a filter screen structure.

Preferably, the cutting mechanism includes:

a lower cutter fixed with the workbench;

the upper cutter is arranged on the lower cutter in a sliding manner and is connected with the output end of the driving piece, and the driving piece can drive the upper cutter to be close to or far away from the lower cutter along the vertical direction so as to cut the pole piece.

Compared with the prior art, the utility model has the beneficial effects that:

the utility model provides a die cutting device which comprises a workbench, a cutting mechanism and a collecting mechanism, wherein the workbench is used for conveying pole pieces along a first direction, the cutting mechanism is arranged on one side of the workbench along the first direction and is used for cutting the pole pieces, the collecting mechanism is arranged on one side of the workbench, which is close to the cutting mechanism, and is used for collecting pole piece rim charge generated by the cutting mechanism when the pole pieces are cut, a stop block is arranged in the collecting mechanism and is configured to convert the transverse falling of the pole piece rim charge into the longitudinal falling. Through set up the dog in collection device, the dog can adjust the form that pole piece rim charge got into collection mechanism, and then avoids pole piece rim charge to block up collection mechanism, and then improves the production efficiency of pole piece cross cutting.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the following description will briefly explain the drawings needed in the description of the embodiments of the present utility model, and it is obvious that the drawings in the following description are only some embodiments of the present utility model, and other drawings may be obtained according to the contents of the embodiments of the present utility model and these drawings without inventive effort for those skilled in the art.

FIG. 1 is a schematic diagram of a die cutting device according to an embodiment of the present utility model;

FIG. 2 is a second schematic structural view of a die-cutting device according to an embodiment of the present utility model;

FIG. 3 is a schematic structural view of a cutting mechanism according to an embodiment of the present utility model;

fig. 4 is a schematic structural diagram of a collecting mechanism according to an embodiment of the present utility model.

Reference numerals:

100. a die cutting device; 200. a pole piece; 210. pole piece rim charge;

10. a work table;

20. a cutting mechanism; 21. a lower cutter; 22. an upper cutter;

30. a collection mechanism; 31. a receiving box; 311. a stop block; 3111. an inclined plane structure; 312. a blocking member; 32. and a collecting pipe.

Detailed Description

In order to make the technical problems solved, the technical scheme adopted and the technical effects achieved by the utility model more clear, the technical scheme of the utility model is further described below by a specific embodiment in combination with the attached drawings.

In the description of the present utility model, unless explicitly stated and limited otherwise, the terms "connected," "connected," and "fixed" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communicated with the inside of two elements or the interaction relationship of the two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.

In the present utility model, unless expressly stated or limited otherwise, a first feature "above" or "below" a second feature may include both the first and second features being in direct contact, as well as the first and second features not being in direct contact but being in contact with each other through additional features therebetween. Moreover, a first feature being "above," "over" and "on" a second feature includes the first feature being directly above and obliquely above the second feature, or simply indicating that the first feature is higher in level than the second feature. The first feature being "under", "below" and "beneath" the second feature includes the first feature being directly under and obliquely below the second feature, or simply means that the first feature is less level than the second feature.

In the description of the present utility model, the terms "upper," "lower," "left," "right," and the like are used for convenience of description and simplicity of operation based on the orientation or positional relationship shown in the drawings, and do not denote or imply that the apparatus or element in question must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be construed as limiting the utility model. Furthermore, the terms "first," "second," and the like, are used merely for distinguishing between descriptions and not for distinguishing between them.

In the production of lithium batteries, a die cutting device is typically required to die cut the continuously coated pole pieces according to the size of the battery being produced. The cross cutting process can produce pole piece rim charge, for preventing the rim charge from influencing the going on of production process, to the processing of these pole piece rim charge, common there is processing method for, the pole piece rim charge that produces drops to collection mechanism because of the action of gravity in, because the pole piece rim charge that the cross cutting produced is ribbon structure, in blanking stage, appears collecting mechanism frequent jam easily, leads to very frequent needs to shut down and carries out artifical mediation work, seriously reduces production efficiency.

In order to solve the above-mentioned problems, as shown in fig. 1-4, the present embodiment provides a die cutting device 100, the die cutting device 100 includes a table 10, a cutting mechanism 20 and a collecting mechanism 30, the pole piece 200 is conveyed to the table 10 along the X direction (first direction) via a conveying component (not shown), the cutting mechanism 20 is disposed at one side of the table 10 along the X direction and is used for cutting the pole piece 200, the collecting mechanism 30 is disposed at one side of the table 10 close to the cutting mechanism 20, the collecting mechanism 30 is used for collecting pole piece rim charge 210 generated by cutting the pole piece 200 by the cutting mechanism 20, a block 311 is disposed in the collecting mechanism 30, and the block 311 is configured to convert the transverse falling of the pole piece rim charge 210 into the longitudinal falling. Through set up dog 311 in collection device, dog 311 can adjust pole piece rim charge 210 and get into the form of collection mechanism 30, makes pole piece rim charge 210 change from horizontal whereabouts into vertical whereabouts, and then avoids the problem of the horizontal jam collection mechanism 30 of pole piece rim charge 210 to improve the production efficiency of pole piece 200 cross cutting.

It should be noted that, the transmission assembly can automatically move the conveying pole piece 200 along the X direction, so as to achieve the effect of automatically conveying the pole piece 200 and improve the automation degree of the die cutting device 100. Wherein the transmission component can be a belt transmission structure or a roller transmission structure, etc.

Referring to fig. 1-3, the structure of the cutting mechanism 20 is described, as shown in fig. 1-3, the cutting mechanism 20 includes a lower cutter 21, an upper cutter 22 and a driving member, the lower cutter 21 is fixed with the workbench 10, the upper cutter 22 is slidably disposed on the lower cutter 21 and connected with the output end of the driving member, and the driving member can drive the upper cutter 22 to approach or depart from the lower cutter 21 along the vertical direction, so as to realize automatic cutting of the pole piece 200, and further improve the automation degree of the die cutting device 100. Optionally, the driving member is a cylinder. Of course, in other embodiments, the first driving member may be an electric cylinder or other forms, which are not limited herein. When the pole piece 200 is separated, the pole piece 200 to be processed moves forwards under the action of the transmission component, the part to be cut of the pole piece 200 moves into a gap between the upper cutter 22 and the lower cutter 21, and then the upper cutter 22 and the lower cutter 21 are closed to complete cutting of the pole piece 200.

The structure of the collecting mechanism 30 will be described with reference to fig. 1, 2 and 4, as shown in fig. 1, 2 and 4, the collecting mechanism 30 includes a receiving box 31 and a collecting pipe 32, a stopper 311 is disposed at one side of the receiving box 31 along the Y direction (second direction), a pole piece rim charge 210 extends along the Y direction, and the collecting pipe 32 is disposed below the receiving box 31 and communicates with the receiving box 31. As shown in fig. 4, after the pole piece rim charge 210 is cut off, under the action of gravity F1, the pole piece rim charge 210 transversely drops at a speed V1, during the dropping process, one end of the pole piece rim charge 210 contacts the stop block 311 to generate a blocking force F2, and the speed of the pole piece rim charge 210 contacting one end of the stop block 311 drops to V2, at this time, the dropping speed of the end of the pole piece rim charge 210 away from the stop block 311 is still V1, V1 > V2, so that the dropping speed of the end of the pole piece rim charge 210 away from the stop block 311 is greater than the dropping speed of the end near the stop block 311, and the pole piece rim charge 210 rotates with the end near the stop block 311 as the center, at this time, the pole piece rim charge 210 gradually changes from transverse dropping into longitudinal dropping, and finally drops into the collecting pipe 32, thereby avoiding the problem that the pole piece rim charge 210 is easy to block the collecting pipe 32 due to transverse dropping.

Further, as shown in fig. 4, the surface of the stopper 311 facing the interior of the receiving box 31 is a slope structure 3111 inclined downward, and the slope structure 3111 can continuously collide with the pole piece rim charge 210 during the continuous falling process of the pole piece rim charge 210, so as to further improve the effect of changing the falling direction of the pole piece rim charge 210.

Preferably, the distance from the stopper 311 to the top end of the receiving box 31 is 1/4-1/3 of the length of the receiving box 31 in the vertical direction (Z direction), and the inventors verify that setting the stopper 311 within the above range has the best effect of changing the movement track of the pole piece rim charge 210, and the situation that the pole piece rim charge 210 blocks the collecting mechanism 30 does not occur. Specifically, the position of the stop block 311 can be adjusted according to the lengths of the different pole piece rim charge 210, and when the pole piece rim charge 210 is longer, the position of the stop block 311 is adjusted upwards. Otherwise, downward adjustment is performed.

Preferably, the length of the top end of the material receiving box 31 in the Y direction is greater than the length of the pole piece rim charge 210 in the Y direction, so that the pole piece rim charge 210 can adjust the falling direction in the material receiving box 31.

Preferably, the length of the magazine 31 in the vertical direction is gradually reduced. The top end of the receiving box 31 is arranged at one side, far away from the collecting pipeline 32, of the receiving box 31, and the blocking pieces 312 are arranged at two ends of the top end of the receiving box 31 along the Y direction, so that pole piece rim charge 210 is prevented from falling out of the receiving box 31.

Preferably, the end of the collecting mechanism 30 is connected with a negative pressure mechanism (not shown in the figure), and the negative pressure mechanism is used for extracting the pole piece rim charge 210 in the collecting mechanism 30, so as to achieve the purpose of collecting the pole piece rim charge 210 by exhausting the collecting pipeline 32, thereby being beneficial to improving the collecting efficiency of the pole piece rim charge 210 and further improving the production efficiency; at the same time, the volume of the collecting pipeline 32 is reduced, and the occupied space of the equipment is reduced; the air draft quantity is reduced, and the energy consumption is reduced. Specifically, the negative pressure mechanism may be a vacuum pump, a vacuum compressor, a negative pressure fan, or the like.

Further, a collecting box (not shown in the figure) is disposed between the negative pressure mechanism and the collecting mechanism 30, the collecting box is used for collecting the pole piece rim charge 210, and the collecting box provides a collecting space for the pole piece rim charge 210, so that the pole piece rim charge 210 is prevented from being transferred manually frequently.

Further, the side of the collecting box, which is close to the negative pressure mechanism, is of a filter screen structure, so that the pole piece rim charge 210 is prevented from being extracted from the collecting box by the air extracting device.

For ease of understanding, the operation of the die cutting apparatus 100 will be described with reference to fig. 4 in combination with 1:

1) The pole piece 200 is conveyed forwards by a conveying assembly on the workbench 10, and the part to be cut of the pole piece 200 moves into a gap between the upper cutter 22 and the lower cutter 21;

2) The driving piece drives the upper cutter 22 to approach the lower cutter 21 along the vertical direction, so that the pole piece 200 is automatically cut, and a pole piece rim charge 210 is generated;

3) The pole piece rim charge 210 transversely falls at a speed V1 under the action of gravity F1, one end of the pole piece rim charge 210 is contacted with the stop block 311 in the falling process to generate a blocking force F2, the speed of the pole piece rim charge 210 contacted with one end of the stop block 311 is reduced to V2, at the moment, the falling speed of one end of the pole piece rim charge 210 far away from the stop block 311 is still V1, V1 is more than V2, the pole piece rim charge 210 rotates by taking one end close to the stop block 311 as the center, the pole piece rim charge 210 is converted from transverse falling into longitudinal falling, and finally falls into the collecting pipeline 32 vertically;

4) The strip-shaped pole piece rim charge 210 is quickly sucked away by the negative pressure mechanism, so that the problem that the collecting pipeline 32 is easily blocked by the pole piece rim charge 210 is avoided;

5) Under the action of the negative pressure mechanism, the pole piece rim charge 210 is collected into a collection tank.

Note that in the description of this specification, a description referring to terms "some embodiments", "other embodiments", and the like, means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the utility model. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiments or examples. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

The foregoing description is only of the preferred embodiments of the utility model and the technical principles employed. It will be understood by those skilled in the art that the present utility model is not limited to the particular embodiments described herein, but is capable of various obvious changes, rearrangements and substitutions as will now become apparent to those skilled in the art without departing from the scope of the utility model. Therefore, while the utility model has been described in connection with the above embodiments, the utility model is not limited to the embodiments, but may be embodied in many other equivalent forms without departing from the spirit or scope of the utility model, which is set forth in the following claims.

Claims (10)

1. Die cutting device, its characterized in that includes:

a work table (10);

a cutting mechanism (20) disposed on one side of the table (10) in a first direction and configured to cut a pole piece (200);

the collecting mechanism (30) is arranged on one side, close to the cutting mechanism (20), of the workbench (10), the collecting mechanism (30) is used for collecting pole piece rim charge (210) generated by cutting the pole piece (200) by the cutting mechanism (20), a stop block (311) is arranged in the collecting mechanism (30), and the stop block (311) is configured to convert the transverse falling of the pole piece rim charge (210) into the longitudinal falling.

2. The die cutting apparatus as set forth in claim 1, wherein the collection mechanism (30) includes:

the stop block (311) is arranged on one side of the material receiving box (31) along the second direction, and the pole piece rim charge (210) extends along the second direction;

and the collecting pipeline (32) is arranged below the receiving box (31) and is communicated with the receiving box (31).

3. The die cutting device according to claim 2, wherein the length of the magazine (31) in the vertical direction is gradually reduced.

4. The die cutting device according to claim 2, wherein a length of the top end of the receiving box (31) in the second direction is greater than a length of the pole piece rim charge (210) in the second direction.

5. The die cutting device according to claim 2, wherein a face of the stopper (311) facing the inside of the receiving box (31) is a downwardly inclined slope structure (3111).

6. The die cutting device according to claim 2, wherein the distance from the stopper (311) to the top end of the receiving box (31) is 1/4-1/3 of the length of the receiving box (31) in the vertical direction.

7. The die cutting device according to any one of claims 1-6, wherein the collection means (30) is connected at its end to a negative pressure means.

8. The die cutting device according to claim 7, wherein a collection box is provided between the negative pressure mechanism and the collection mechanism (30).

9. The die cutting device of claim 8, wherein the side of the collection box adjacent to the negative pressure mechanism is a filter screen structure.

10. The die cutting device according to any one of claims 1-6, wherein the cutting mechanism (20) comprises:

a lower cutter (21) fixed with the workbench (10);

the upper cutter (22) and the driving piece, the upper cutter (22) is slidably arranged on the lower cutter (21) and is connected with the output end of the driving piece, and the driving piece can drive the upper cutter (22) to be close to or far away from the lower cutter (21) along the vertical direction so as to cut the pole piece (200).