CN211062806U

CN211062806U - Cutting device

Info

Publication number: CN211062806U
Application number: CN202020142832.8U
Authority: CN
Inventors: 许德胜
Original assignee: Zhuhai Cosmx Battery Co Ltd
Current assignee: Zhuhai Cosmx Battery Co Ltd
Priority date: 2020-01-22
Filing date: 2020-01-22
Publication date: 2020-07-21
Anticipated expiration: 2030-01-22

Abstract

The utility model provides a cutting device for the pole piece bag of cutting diaphragm preparation, the device includes: a traction mechanism for drawing the diaphragm to move; a cutting mechanism for cutting the diaphragm; the detection mechanism is used for detecting the position information of the pole piece; and the deviation rectifying mechanism is used for rectifying and adjusting the position of the cutting mechanism according to the detection result of the detection mechanism. According to the utility model discloses cutting device can realize cutter automatic alignment pole piece, has removed the step of manual regulation cutter from, has improved the homogeneity of diaphragm edge distance, can satisfy the technological requirement of higher accuracy.

Description

Cutting device

Technical Field

The utility model relates to a battery production technical field especially relates to a cutting device.

Background

With the development of electronic technology, people have higher and higher requirements on various properties of products. The battery is one of the core components of electronic products, and at present, the manufacture of the battery core mainly adopts a winding mode and a lamination mode. The lamination is to alternately align and stack the positive and negative plates, and the positive and negative plates are separated by a diaphragm. Based on the principle, the existing lamination modes include bag-making type lamination and Z-shaped lamination. The bag-making type lamination requires that a negative plate or a positive plate is made into a plate bag, then the plate bag and the opposite plate are laminated alternately, and the plate bag is that the plate is arranged between an upper diaphragm and a lower diaphragm which are cut, and the peripheries of the upper diaphragm and the lower diaphragm are combined together in a hot welding mode. In the production process of the bag-making type laminated battery, the diaphragm needs to be cut after the pole piece is made into a bag, and the edge distance of the cut diaphragm is required to be within a certain process range. At present, a diaphragm cutting cutter needs to be manually adjusted in position, and cannot be debugged in real time when equipment runs.

SUMMERY OF THE UTILITY MODEL

In view of this, the utility model provides a cutting device for solve among the prior art diaphragm cut the cutter and need manual adjustment, the diaphragm margin that cuts out is inhomogeneous or surpass process range.

In order to solve the technical problem, the utility model provides a cutting device for the pole piece bag of cutting diaphragm preparation, the device includes:

a traction mechanism for drawing the diaphragm to move;

a cutting mechanism for cutting the diaphragm;

the detection mechanism is used for detecting the position information of the pole piece;

and the deviation rectifying mechanism is used for rectifying and adjusting the position of the cutting mechanism according to the detection result of the detection mechanism.

Optionally, the apparatus further comprises:

and the diaphragm clamping mechanism is arranged in the moving direction of the pole piece and is used for clamping the diaphragm.

Optionally, the cutting mechanism comprises at least one cutter.

Optionally, the deviation correcting mechanism comprises a deviation correcting drive motor, the at least one cutter is arranged on the cutter base, and a drive end of the deviation correcting drive motor is connected with the cutter base and used for driving the at least one cutter on the cutter base to move.

Optionally, the cutting mechanism comprises two cutters.

Optionally, the deviation correcting mechanism includes two deviation correcting driving motors, and a driving end of each deviation correcting driving motor is correspondingly connected to one of the cutters, and is configured to drive each of the cutters to move.

Optionally, the cutting mechanism includes a cutting driving motor, and a driving end of the cutting driving motor is connected to the at least one cutter, and is configured to drive the at least one cutter to cut the pole piece.

Optionally, the detection mechanism is one of a charge coupled device, a position sensor, and an X-ray detection device.

Optionally, the traction mechanism pulls the pole piece to horizontally move along a first straight line, and the detection mechanism is located above or below the pole piece.

Optionally, the pole piece includes a pole piece body and a tab connected to the pole piece body, and the detection mechanism is configured to detect position information of the pole piece body or position information of the tab.

The utility model discloses an above-mentioned technical scheme's beneficial effect as follows:

according to the utility model discloses cutting device can realize cutter automatic alignment pole piece, has removed the step of manual regulation cutter from, has improved the homogeneity of diaphragm edge distance, can satisfy the technological requirement of higher accuracy.

Drawings

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

fig. 2 is a schematic side view of a cutting device according to an embodiment of the present invention.

Detailed Description

In order to make the purpose, technical solution and advantages of the embodiments of the present invention clearer, the drawings of the embodiments of the present invention are combined below to clearly and completely describe the technical solution of the embodiments of the present invention. It is to be understood that the embodiments described are only some of the embodiments of the present invention, and not all of them. All other embodiments, which can be derived from the description of the embodiments of the present invention by a person skilled in the art, are within the scope of the present invention.

With the development of electronic technology, people have higher and higher requirements on various properties of products. The battery is one of the core components of electronic products, in the production process of the square laminated battery, the pole pieces are wrapped by the diaphragms, namely the pole pieces are sequentially placed between two layers of diaphragms at intervals along the length direction of the diaphragms, the diaphragms are clamped to complete bag making, the diaphragms need to be cut after the pole pieces are made into the bags, and the edge distance of the diaphragms on the cut edges is required to be within a certain process range. However, the position of the current diaphragm cutter needs to be adjusted manually, and the diaphragm cutter cannot be debugged in real time during the operation of equipment, so that the cutting efficiency is low.

Because the diaphragm margin that cuts out after the pole piece bag is made has certain process range requirement, though the pole piece has carried out the location before the material loading, nevertheless through shifting, diaphragm pull and hot pressing bag back, the deviation can appear in the front and back position of pole piece, because the cutter position can only carry out manual debugging, the cutter is motionless when equipment is in operation, when the deviation appears in the pole piece position, will cause the diaphragm margin that cuts out to be unstable or go beyond the process range.

Therefore, as shown in fig. 1-2, an embodiment of the present invention provides a cutting device for cutting a pole piece bag made of a diaphragm, wherein the diaphragm for making the bag has two layers, the two layers of diaphragms are stacked, a pole piece 6 is arranged between the two layers of diaphragms, and a plurality of pole pieces 6 are sequentially placed at intervals along the length direction of the diaphragms, the pole piece 6 includes a pole piece body, a pole tab 61 is further arranged on the pole piece body, and the pole tab 61 protrudes out of the edge of the pole piece body; the apparatus may include: the cutting machine comprises a base 1, and a traction mechanism 2, a cutting mechanism 3, a detection mechanism 4 and a deviation rectification mechanism 5 which are arranged on the base 1, wherein the traction mechanism 2 is used for drawing a pole piece 6 to move, the detection mechanism 4 is used for detecting the position information of the pole piece 6, and the deviation rectification mechanism is used for performing deviation rectification adjustment on the position of the cutting mechanism 3.

In some embodiments of the present invention, the traction mechanism 2 can pull the pole piece 6 to move horizontally along the first straight line, that is, the pole piece 6 after the bag making of the diaphragm is completed is placed horizontally, and the pole piece moves horizontally under the driving of the traction mechanism 2, and specifically, the pole piece can be controlled to move along the first straight line to the feeding direction; the cutting mechanism 3 is used for cutting the pole piece 6, and more specifically, cutting a diaphragm bag between two adjacent pole piece bodies so as to separate the two adjacent pole piece bodies to form an independent pole piece; in specific implementation, the cutting mechanism 3 may include at least one cutter 31 for cutting the pole piece 6, and the at least one cutter 31 may be disposed below the pole piece 6 and may move, and more specifically, the cutter 31 may move horizontally along a first straight line, corresponding to a moving track of the pole piece 6; because the pole pieces 6 made by adopting the diaphragm bag are connected with each other, each pole piece 6 needs to be cut and separated by the cutter 31, at least one cutter 31 is arranged below the pole piece 6, each cutter 31 can cut at the middle position of the two pole pieces 6, so that each pole piece 6 is separated, and the front and back positions of the pole pieces 6 can deviate after the bag is made by transferring, diaphragm drawing and hot pressing, therefore, at least one cutter 31 is arranged to be capable of horizontally moving along a first straight line, the position of the cutter 31 can be moved and adjusted according to the actual position of the pole piece 6 to be cut, so that the diaphragm edge distance of the pole piece 6 obtained by cutting is uniform, and the process requirement range is met.

The utility model discloses an in some embodiments, treat the actual position of cutting pole piece 6 for accurate acquisition, can utilize detection mechanism 4 to treat the position of cutting pole piece 6's utmost point ear 61 and detect, because the size of pole piece 6 is guaranteed by the cross cutting, the precision is higher, therefore, utmost point ear 61 on the pole piece 6 is stable to the adjacent limit's of adjacent pole piece 6 distance, higher uniformity has, therefore, can regard utmost point ear 61 on the pole piece 6 as this pole piece 6's position calibration thing, and utmost point ear 61 on the pole piece 6 is the benchmark value to the linear distance on a limit of this pole piece 6 adjacent with another pole piece 6, detection mechanism 4 can set up the top at pole piece 6, when treating that cutting pole piece 6 reachs detection mechanism 4 department, detection mechanism 4 can detect out the position of utmost point ear 61 on this pole piece 6.

In some embodiments of the present invention, the detection mechanism 4 can be selected from a charge coupled device, a position sensor, an X-ray detection device, etc., and is specifically selected according to the precision requirement and the cost.

And in other embodiments of the utility model, in order to accurately acquire the actual position of waiting to cut pole piece 6, can also utilize detection mechanism 4 to treat the position of the pole piece body of cutting pole piece 6 and detect, for example adopt X-ray to detect, because the clearance between the adjacent two pole piece bodies is empty (only the diaphragm), utilize X-ray can accurately differentiate the position of pole piece body to the adjustment of rectifying is carried out cutting mechanism 3 according to the position of pole piece body. The detection mechanism 4 may specifically be an X-ray detection device.

In the embodiment of the present invention, after the detecting mechanism 4 obtains the position information of the tab 61 or the position information of the pole piece body on the pole piece 6 to be cut, the deviation rectifying mechanism 5 can rectify and adjust the position of the cutter 31 according to the position information of the tab 61 or the position information of the pole piece body, and drive the cutter 31 to move along the first straight line, so that the cutter 31 just cuts the middle position of two adjacent pole pieces 6, and for the deviation rectifying adjustment according to the position information of the tab 61, when the pole piece 6 is detected for the first time, the position of the tab 61 of the pole piece 6 is used as the reference value, and the position of the cutter 31 is adjusted to make the cutter 31 just cut the middle position of two adjacent pole pieces 6, so that the reference value corresponds to the current position of the cutter 31, when the next pole piece 6 to be cut reaches the position of the detecting mechanism 4, the detecting mechanism 4 detects the position of the tab 61 of the pole piece 6, comparing the deviation value with a reference value, calculating a deviation value, drawing the pole piece 6 in place by a drawing mechanism 2, simultaneously carrying out deviation correction adjustment on the position of the cutter 31 by a deviation correction mechanism 5 according to the deviation value, wherein the adjustment value is the deviation value of the tab 61, and then accurately cutting the pole piece 6 by the cutter 31; for the purpose of correcting and adjusting the position information of the pole piece bodies, the position of the edge of the pole piece bodies can be directly detected, so that the distance between the two adjacent pole piece bodies is determined, the position of the cutter 31 is corrected and adjusted, and the cutting position of the cutter 31 is just positioned in the middle of the interval between the two adjacent pole piece bodies.

The utility model discloses a some embodiments, the mechanism 5 of rectifying includes a driving motor that rectifies, cutting mechanism 3 includes a cutter base, at least one cutter 31 sets up on the cutter base, when cutter 31 has many, can set up on the cutter base along first straight line interval cutter 31 many (cutting edge length direction is perpendicular with first straight line), and driving motor's drive end and cutter pedestal connection rectify, from this, the driving motor that rectifies is after receiving the driving signal that rectifies, will drive the cutter base and correspond the removal, thereby cutter 31 on it is moved in the drive, make cutter 31 take one's place accurately under the position is cut in waiting of pole piece 6.

The utility model discloses an in other embodiments, the quantity of cutter 31 specifically can be two, and the mechanism 5 of rectifying can include two driving motor that rectify, and each driving end and a cutter 31 of rectifying are connected to make each driving motor that rectifies drive can remove a cutter 31 of individual drive, realize separately rectifying, particularly, the driving motor that rectifies can drive the cutter 31 rather than being connected along first linear direction horizontal migration.

The utility model discloses an in some embodiments, cutting mechanism 3 is still including cutting driving motor, and the drive end that cuts driving motor is connected with two at least cutters 31 for after cutter 31's position adjustment calibration, drive cutter 31 treats cutting pole piece 6 and cuts.

The utility model discloses an in other embodiments, cutting mechanism 3 can also be laser cutting equipment except that the cutter, and laser cutting equipment cutting is efficient, and the roughness of cutting department is better. When the cutting mechanism 3 adopts a laser cutting mode, the deviation rectification adjustment principle is the same as that of the cutter 31, and the description is omitted here.

In some embodiments of the present invention, the device further comprises a diaphragm clamping mechanism 7, the diaphragm clamping mechanism 7 is disposed on the base 1 and located in the moving direction of the pole piece 6, and is used for clamping the diaphragm located on the upper and lower surfaces of the pole piece 6.

According to the cutting device provided by the embodiment of the utility model, the cutting mechanism can automatically align the pole piece, the step of manually adjusting the cutting mechanism is eliminated, the manual adjusting time is saved, and the production efficiency of equipment is improved; the device realizes closed-loop control, improves the uniformity of the edge distance of the diaphragm, and can meet the process requirement of higher precision.

Unless defined otherwise, technical or scientific terms used herein shall have the ordinary meaning as understood by one of ordinary skill in the art to which this invention belongs. The use of "first," "second," and similar terms in the description and in the claims does not indicate any order, quantity, or importance, but rather is used to distinguish one element from another. Also, the use of the terms "a" or "an" and the like do not denote a limitation of quantity, but rather denote the presence of at least one. The terms "connected" or "coupled" and the like are not restricted to physical or mechanical connections, but may include electrical connections, whether direct or indirect. "upper", "lower", "left", "right", and the like are used merely to indicate relative positional relationships, and when the absolute position of the object being described is changed, the relative positional relationships are changed accordingly.

The foregoing is a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of improvements and decorations can be made without departing from the principle of the present invention, and these improvements and decorations should also be regarded as the protection scope of the present invention.

Claims

1. A cutting device for cutting a polar sheet pocket made of a separator, the device comprising:

a traction mechanism for drawing the diaphragm to move;

a cutting mechanism for cutting the diaphragm;

2. The cutting device of claim 1, further comprising:

3. The cutting device of claim 1, wherein the cutting mechanism comprises at least one cutting blade.

4. The cutting device according to claim 3, wherein the deviation correcting mechanism comprises a deviation correcting driving motor, the at least one cutting knife is disposed on a cutting knife base, and a driving end of the deviation correcting driving motor is connected with the cutting knife base for driving the at least one cutting knife on the cutting knife base to move.

5. A cutting device according to claim 3, wherein the cutting mechanism comprises two cutters.

6. The cutting device as claimed in claim 5, wherein the deviation correcting mechanism comprises two deviation correcting driving motors, and a driving end of each deviation correcting driving motor is correspondingly connected with one of the cutting knives for respectively driving each cutting knife to move.

7. The cutting device according to claim 3, wherein the cutting mechanism comprises a cutting drive motor, and a drive end of the cutting drive motor is connected with the at least one cutting knife for driving the at least one cutting knife to cut the pole piece.

8. The cutting apparatus of claim 1, wherein the detection mechanism is one of a charge coupled device, a position sensor, an X-ray detection device.

9. The cutting device according to claim 1, wherein the traction mechanism draws the pole piece to move horizontally along a first line, and the detection mechanism is located above or below the pole piece.

10. The cutting device according to claim 9, wherein the pole piece comprises a pole piece body and a tab connected to the pole piece body, and the detection mechanism is configured to detect position information of the pole piece body or position information of the tab.