CN216913966U

CN216913966U - A instrument is cut to plastic-aluminum membrane for soft packet of lithium ion battery core

Info

Publication number: CN216913966U
Application number: CN202123428020.3U
Authority: CN
Inventors: 许波; 王涌
Original assignee: Dongguan Hongde Battery Co ltd
Current assignee: Dongguan Hongde Battery Co ltd
Priority date: 2021-12-31
Filing date: 2021-12-31
Publication date: 2022-07-08
Anticipated expiration: 2031-12-31

Abstract

The utility model discloses an aluminum-plastic film slitting tool for soft package lithium ion cells, which comprises a base, a jig for driving an aluminum-plastic film to move, and a film cutting assembly for cutting the aluminum-plastic film, wherein the jig is used for driving the aluminum-plastic film to move; a rotary platform is arranged on the base, and the jig buckles and presses the aluminum-plastic film on the rotary platform; the film cutting assembly comprises a cutter arranged on one side of the base, and a limiting piece for limiting the film cutting position is arranged on the outer side of the cutter; according to the utility model, the rotating platform is arranged on the base, the aluminum-plastic film is placed on the rotating platform, the jig is buckled on the aluminum-plastic film, the positioning of the jig on the aluminum-plastic film is realized, the aluminum-plastic film can rotate due to the arrangement of the rotating platform, the aluminum-plastic film can be cut quickly, the efficiency is high, the operation is simple, the jig loss is small, burrs are avoided after the forming, the risk of dust falling is reduced, and the risk of potential safety hazards caused by a lithium ion battery cell is reduced.

Description

A instrument is cut to plastic-aluminum membrane for soft packet of lithium ion battery core

Technical Field

The utility model relates to the technical field of lithium ion batteries, in particular to an aluminum plastic film slitting tool for soft package of lithium ion batteries.

Background

The slitting process after the die punching forming of the soft package lithium ion battery aluminum plastic film is an important process for improving the appearance, size and other requirements of a battery cell before the battery cell is assembled. Improve original process of cutting in the past, inefficiency can produce a large amount of burrs when cutting, and the piece etc. produces great potential safety hazard problem to electric core later stage.

At present, in the cutting process after the die forming of the soft package lithium ion battery cell, a stamping type extrusion cutting method is used for achieving the purpose of finally shaping and cutting the aluminum-plastic film. Use large-scale stamping equipment to carry out extrusion formula die-cut, every die-cut needs to change the teflon clamp plate once, needs both hands concurrent operation, presses the plastic-aluminum membrane to the tool on one hand promptly, and places the teflon clamp plate on one hand. After the placing and flattening, punching the Teflon plate and the jig by large-scale punching equipment until the Teflon plate and the jig are extruded, cut and shaped; the existing punching type extrusion slitting method has the following problems: the efficiency is low, and the operation is difficult, and the tool loss is big, appears the burr after the shaping, has the risk of falling the dust, leads to lithium ion battery cell probably to cause the potential safety hazard.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the technical problem that the aluminum plastic film slitting tool for the soft package lithium ion battery cell is high in efficiency, simple to operate and small in jig loss, burrs are avoided after forming, the risk of dust falling is reduced, and the risk of potential safety hazards caused by the lithium ion battery cell is reduced.

The technical scheme adopted by the utility model for solving the technical problems is as follows: an aluminum plastic film slitting tool for soft package lithium ion battery cells comprises a base, a jig for driving an aluminum plastic film to move, and a film slitting assembly for slitting the aluminum plastic film;

the base is provided with a rotating platform, and the jig is used for buckling and pressing the aluminum-plastic film on the rotating platform;

the film cutting assembly comprises a cutter arranged on one side of the base, and a limiting part for limiting the film cutting position is arranged on the outer side of the cutter.

The base comprises a support frame and a bottom plate, the rotary platform is arranged in the middle of the bottom plate and is rotatably connected to the support frame, and the upper surface of the rotary platform is flush with the upper surface of the bottom plate.

The base comprises a support frame, and the rotary platform is rotatably connected to the support frame.

The film cutting assembly is fixedly connected to the side face of the support frame.

The jig is provided with a containing part which is consistent with the shape of the formed aluminum-plastic film.

The back of the jig is detachably connected with a handheld piece.

The back of the jig is provided with an insertion port, the bottom of the handheld piece is provided with an insertion part, and the insertion part of the handheld piece is inserted into the insertion port.

The hand-held piece is in clearance fit, threaded connection, clamping connection or close fit splicing with the splicing opening.

The limiting part is a baffle or a stop block arranged on the outer side of the cutter.

The cutter is connected with a control mechanism for controlling the cutter to move up and down.

The utility model has the beneficial effects that: the utility model provides an aluminum plastic film slitting tool for soft package lithium ion cells, which comprises a base, a jig for driving an aluminum plastic film to move, and a film slitting assembly for slitting the aluminum plastic film; the base is provided with a rotating platform, and the jig is used for buckling and pressing the aluminum-plastic film on the rotating platform; the film cutting assembly comprises a cutter arranged on one side of the base, and a limiting piece for limiting the film cutting position is arranged on the outer side of the cutter; through set up rotary platform on the base, placed the plastic-aluminum membrane on the rotary platform, the lock has the tool on the plastic-aluminum membrane, realizes the tool to the location of plastic-aluminum membrane, and rotary platform's setting makes can rotate on the plastic-aluminum membrane, realizes cutting the plastic-aluminum membrane fast, and is efficient, easy operation, the tool loss is little, avoids appearing the burr after the shaping, reduces the risk of falling the dust, reduces the risk that lithium ion battery cell caused the potential safety hazard.

Drawings

The utility model will be further described with reference to the accompanying drawings and examples, in which:

FIG. 1 is a schematic perspective view of a slitting apparatus for aluminum-plastic film according to the present invention;

FIG. 2 is a side view of a first embodiment of the aluminum plastic film slitting device according to the present invention;

FIG. 3 is a side view of a second embodiment of the aluminum plastic film slitting device according to the present invention;

fig. 4 is a schematic structural view of a jig and an aluminum-plastic film of the aluminum-plastic film slitting device of the utility model.

Detailed Description

For a more clear understanding of the technical features, objects and effects of the present invention, embodiments of the present invention will now be described in detail with reference to the accompanying drawings.

An element is said to be "secured to" or "disposed on" another element, either directly or indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly or indirectly connected to the other element.

The terms "upper," "lower," "left," "right," "front," "back," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like refer to an orientation or position based on the orientation or position shown in the drawings.

The terms "axial" and "radial" refer to the length of the entire device or component as "axial" and the direction perpendicular to the axial direction as "radial".

The terms "first", "second", etc. are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features. The meaning of "plurality" is two or more unless specifically limited otherwise.

The above terms are for convenience of description only and are not to be construed as limiting the present technical solution.

As shown in fig. 1-4, an aluminum-plastic film slitting tool for soft-package lithium ion battery cells comprises a base 1, a jig 3 for driving an aluminum-plastic film 2 to move, and a film cutting assembly 4 for cutting the aluminum-plastic film 2; a rotating platform 5 is arranged on the base 1, and the jig 3 buckles and presses the aluminum-plastic film 2 on the rotating platform 5; the film cutting assembly 4 comprises a cutting knife 41 arranged on one side of the base 1, and a limiting piece 42 for limiting the film cutting position is arranged on the outer side of the cutting knife 41.

The use process of the aluminum plastic film slitting tool is as follows: placing the aluminum-plastic film 2 to be cut on a rotating platform 5, buckling a jig 3 on the corresponding position of the aluminum-plastic film 2, giving a force to the jig 3 to rotate the rotating platform 5, enabling the aluminum-plastic film 2 on the rotating platform 5 to rotate to one side to be cut, pushing the jig 3 to enable the aluminum-plastic film to be abutted against a limiting part, limiting the film cutting position of the aluminum-plastic film 2 of the limiting part 42, cutting the aluminum-plastic film along the edge of the jig 3 by using a cutter 41, rotating the rotating platform 5 to enable the aluminum-plastic film 2 to be converted from one side to the other side, and repeating the operations until all edges of the aluminum-plastic film 2 are cut completely.

Rotary platform 5 sets up to circular usually, rotary platform 5 below is equipped with rotation axis 51, make it can rotate around its centre of a circle, plastic-aluminum membrane 2 sets up the upper surface at rotary platform 5, thus, realize plastic-aluminum membrane 2 all-round rotation through rotary platform 5, make need not to take up plastic-aluminum membrane 2 when cutting plastic-aluminum membrane 2 and trade the limit (because the shaping plastic-aluminum membrane is the polygon usually, need cut one side earlier when cutting the membrane, then change plastic-aluminum membrane 2 and continue to cut to the another side, cut all limits and accomplish all), rotary platform 5's setting makes to cut plastic-aluminum membrane 2 and can reduce the step of taking up the trade limit, thereby make plastic-aluminum membrane 2 reach the effect of trading the limit through making rotary platform 5 rotate, manpower cost has been saved, work efficiency has been improved.

As shown in fig. 4, the jig 3 is an independent structure, different jigs 3 can be arranged according to different types of lithium ion electric cores, the jig 3 can be replaced to adapt to the aluminum plastic film 2 cutting procedure of all types of lithium ion electric cores, the jig 3 can be lifted and put down, the aluminum plastic film 2 to be cut is placed on the rotary platform 5 when lifted, the jig 3 is buckled on the aluminum plastic film 2 when put down, the jig 3 is provided with a containing part 31 which is consistent with the shape of the formed aluminum plastic film, the formed aluminum plastic film is structurally provided with a convex part 21, the convex part 21 is matched with the containing part 31, the area of the jig 3 buckled on the aluminum plastic film 2 is consistent with the cross-sectional area of the formed aluminum plastic film (the formed aluminum plastic film refers to the aluminum plastic film 2 which can be matched with the lithium ion electric core and forms a finished product after being matched with the lithium ion electric core), and further the aluminum plastic film 2 formed by cutting along the peripheral edges of the jig 3 can be matched with the lithium ion electric core as a finished product, the generation of defective products caused by the mismatching of the aluminum plastic film 2 formed by cutting and the lithium ion battery cell is avoided; the film cutting assembly 4 is fixed on one side of the base 1, the film cutting assembly 4 comprises a cutter 41 arranged on one side of the base 1, a limiting part 42 for limiting the position of the film is arranged outside the cutter 41, the film cutting assembly 4 further comprises a film cutting frame, the film cutting frame comprises two guide posts 43 fixed on the base 1, a pressing plate 44 capable of sliding up and down along the guide posts 43 is sleeved on the two guide posts 43, the cutter 41 is arranged below the pressing plate 44, the cutter 41 can be manually moved up and down along the radial direction of the guide posts 43, a control mechanism 7 for controlling the cutter 41 to move up and down is connected on the cutter 41, the control mechanism 7 can be an air cylinder arranged on the film cutting frame, one end of the air cylinder is connected with the cutter 41, and a telescopic rod connected with the air cylinder makes telescopic motion, thereby driving the cutter 41 to move up and down between the guide posts 43, and realizing the cutting work; the locating part 42 is the baffle or the dog that set up in the cutter 41 outside, the locating part 42 can be fixed on two guide pillars 43, the locating part 42 is used for spacing plastic-aluminum membrane 2, and fix a position the cutting film position, during locating part 42 and the outer border butt of plastic-aluminum membrane 2, a lateral wall of tool 3 is located cutter 41 under this moment, make cutter 41 can downcut along the lateral wall of tool 3 just when cutting plastic-aluminum membrane 2, the unevenness has been avoided cutting, reduce the risk that burr scheduling problem appears.

In some embodiments, as shown in fig. 2, the base 1 includes a support frame 11 and a bottom plate 2, the bottom plate 2 is square, a circular hole is formed in the middle of the bottom plate 2, the shape of the circular hole matches with that of a circular rotating platform 5, a rotating shaft 51 is arranged below the rotating platform 5, so that the rotating platform can rotate around the center of the rotating platform 5 on the bottom plate 2, that is, the rotating platform 5 is rotatable, the bottom plate 2 is stationary, and the upper surface of the rotating platform 5 is flush with the upper surface of the bottom plate 2, so that the aluminum-plastic film 2 placed on the rotating platform 5 and the base 1 is on a flat plane, and uneven cutting caused by the aluminum-plastic film 2 on the uneven plane is avoided; the side edge of the bottom plate 2 is fixed with the film cutting assembly 4, the film cutting assembly 4 further comprises a film cutting frame, the film cutting frame comprises two guide pillars 43 fixed on the side edge of the bottom plate 2, pressing plates 44 capable of sliding up and down along the guide pillars 43 are sleeved on the two guide pillars 43, a cutter 41 is arranged below the pressing plates 44, the cutter 41 can move along the guide pillars 43 in the radial direction, so that cutting work is realized, the limiting part 42 is arranged on the outer side of the cutter 41, the limiting part 42 is used for limiting the aluminum-plastic film 2 and positioning the film cutting position, one side wall of the jig 3 is located right below the cutter 41, when the cutter 41 cuts the aluminum-plastic film 2, the aluminum-plastic film can be cut along the side wall of the jig 3 right, uneven cutting is avoided, and risks of burrs and the like are reduced; the supporting frame 11 is used for supporting the bottom plate 2, the rotating platform 5 and the film cutting assembly 4, so that the supporting frame has certain supporting strength.

In some embodiments, as shown in fig. 3, the base 1 includes a supporting frame 11, the rotating platform 5 is rotatably connected to the supporting frame 11, the film cutting assembly 4 is fixedly connected to the side of the supporting frame 11 and above the rotating platform 5, i.e. the film cutting assembly 4 is stationary, the film cutting assembly 4 includes a cutting knife 41, a limiting member 42 for limiting the position of the film is disposed outside the cutting knife 41, the film cutting assembly 4 further includes a film cutting frame, the film cutting assembly 4 is connected to the side of the supporting frame 11 through the film cutting frame, the film cutting frame includes two guide posts 43 and a pressing plate 44, the pressing plate 44 capable of sliding up and down along the guide posts 43 is sleeved on the two guide posts 43, the cutting knife 41 is disposed below the pressing plate 44, so that the cutting knife 41 can move radially along the guide posts 43 to achieve the cutting operation, the limiting member 42 is disposed outside the cutting knife 41 and connected to the two guide posts 43, the limiting member 42 is used for limiting the aluminum-plastic film 2 and positioning the position of the film, when the lateral wall of locating part 42 and the outside border butt of plastic-aluminum membrane 2 for a lateral wall of tool 3 is located cutter 41 under, can downcut along the lateral wall of tool 3 just when making cutter 41 cut plastic-aluminum membrane 2, has avoided cutting the unevenness, reduces the risk that burr scheduling problem appears.

As shown in fig. 4, the back of the jig 3 is detachably connected with a handheld piece 6, the handheld piece 6 is designed to facilitate moving the jig 3, a thrust force is given to the handheld piece 6 to drive the rotating platform 5 to rotate, and the jig 3 can also be pushed to communicate with the aluminum-plastic film 2 to move on the base 1, so that the aluminum-plastic film 2 is moved to a film cutting position; the back of the jig 3 can be provided with an insertion interface 32, the bottom of the handheld piece 6 is provided with an insertion part 61, and the insertion part 61 of the handheld piece 6 is inserted into the insertion interface 32, so that the handheld piece 6 is detachably connected with the jig 3; the connection manner of the insertion part 61 of the hand piece 6 and the insertion port 32 has various embodiments, for example, the insertion part 61 of the hand piece 6 is provided with a screw thread, the inner wall of the insertion port 32 is in a screw thread shape, and the two screw threads are matched to realize a screw thread connection, or the insertion part 61 of the hand piece 6 and the insertion port 32 are in a clearance fit, or the insertion part 61 of the hand piece 6 and the insertion port 32 are in a snap fit, or the insertion part 61 of the hand piece 6 and the insertion port 32 are in a tight fit.

Claims

1. The aluminum-plastic film slitting tool for the soft package lithium ion battery cell is characterized by comprising a base (1), a jig (3) for driving an aluminum-plastic film (2) to move, and a film slitting assembly (4) for slitting the aluminum-plastic film (2);

the base (1) is provided with a rotating platform (5), and the jig (3) buckles the aluminum-plastic film (2) and presses the aluminum-plastic film on the rotating platform (5);

the film cutting assembly (4) comprises a cutting knife (41) arranged on one side of the base (1), and a limiting piece (42) for limiting the film cutting position is arranged on the outer side of the cutting knife (41).

2. The aluminum-plastic film slitting tool for the soft package lithium ion battery cell as claimed in claim 1, wherein the base (1) comprises a support frame (11) and a bottom plate (12), the rotating platform (5) is arranged in the middle of the bottom plate (12) and is rotatably connected to the support frame (11), and the upper surface of the rotating platform (5) is flush with the upper surface of the bottom plate (12).

3. The aluminum-plastic film slitting tool for the soft package lithium ion battery cell as claimed in claim 1, wherein the base (1) comprises a support frame (11), and the rotating platform (5) is rotatably connected to the support frame (11).

4. The aluminum-plastic film slitting tool for the soft package lithium ion battery cell as claimed in claim 3, wherein the film slitting assembly (4) is fixedly connected to the side of the support frame (11).

5. The aluminum-plastic film slitting tool for the soft package lithium ion battery cell as claimed in claim 1, wherein the jig (3) is provided with a holding part (31) which is in accordance with the shape of the formed aluminum-plastic film.

6. The aluminum-plastic film slitting tool for the soft package lithium ion battery cell as claimed in claim 1, wherein a hand piece (6) is detachably connected to the back of the jig (3).

7. The aluminum-plastic film slitting tool for the soft package lithium ion battery cell as claimed in claim 6, wherein the jig (3) is provided with a socket (32) on the back, the bottom of the hand piece is provided with an insertion part (61), and the insertion part (61) of the hand piece (6) is inserted into the socket (32).

8. The aluminum-plastic film slitting tool for the soft package lithium ion battery cell as claimed in claim 7, wherein the hand piece (6) is inserted into the insertion port (32) in a clearance fit, a threaded connection, a snap connection or a tight fit.

9. The aluminum-plastic film slitting tool for the soft package lithium ion battery cell as claimed in claim 1, wherein the limiting member (42) is a baffle or a stop block arranged outside the cutter (41).

10. The aluminum-plastic film slitting tool for the soft package lithium ion battery cell as claimed in claim 1, wherein the cutter (41) is connected with a control mechanism (7) for controlling the cutter (41) to move up and down.