CN212634054U

CN212634054U - Double-arc double-pit aluminum-plastic film deep punching die

Info

Publication number: CN212634054U
Application number: CN202020615046.5U
Authority: CN
Inventors: 雷康州; 屈永辉; 纪荣进; 郑明清; 陈杰; 杨山; 李载波
Original assignee: Huizhou Liwinon Energy Technology Co Ltd
Current assignee: Huizhou Liwinon Energy Technology Co Ltd
Priority date: 2020-04-22
Filing date: 2020-04-22
Publication date: 2021-03-02
Anticipated expiration: 2030-04-22

Abstract

The utility model belongs to the technical field of battery manufacture equipment, concretely relates to two hole plastic-aluminum membrane of double arcs are towards dark mould, including first towards seat and second towards the seat, first towards seat and second towards being provided with the guide part between the seat, first towards the seat through guide part and second towards a sliding connection, first towards the seat be provided with the drift, the second is towards the seat be provided with the unsmooth hole of dashing that matches of drift. The utility model discloses can process the plastic-aluminum membrane of the naked electric core of double arcs, make the plastic-aluminum membrane have the double arcs and dash the hole, it dashes dark can the reinforce, and stable in structure is reliable, has effectively reduced the damage of plastic-aluminum membrane.

Description

Double-arc double-pit aluminum-plastic film deep punching die

Technical Field

The utility model belongs to the technical field of battery manufacture equipment, concretely relates to two hole plastic-aluminum membrane of double arcs dashes dark mould.

Background

The lithium ion battery has the advantages of small volume, high energy density, no memory effect, long cycle life, high voltage platform, low self-discharge rate and the like, and has become the first choice battery of electronic consumer products in recent years. In electronic consumer products such as watch watchbands, photographic lenses, headsets, and the like, a special-shaped battery is often required to be used for supplying power to wearable equipment.

However, the inventor finds that the conventional battery aluminum-plastic film deep-drawing mode mostly adopts a square single pit, which is easy to damage the aluminum-plastic film greatly, and the conventional deep-drawing die usually extrudes the battery core and the aluminum-plastic film at the same time, which easily causes the phenomenon that the internal structure of the battery core is damaged or the internal short circuit of the battery core occurs. Therefore, a new aluminum-plastic film deep drawing die is needed to solve the above problems.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a: aiming at the defects of the prior art, the double-arc double-pit aluminum-plastic film deep punching die is high in reliability, good in stability, compact in structure and high in integration degree, effectively reduces the damage of an aluminum-plastic film, improves the processing speed and the processing yield of the aluminum-plastic film, and can enable a double-arc battery cell to be perfectly matched with the processed aluminum-plastic film in appearance size.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

the utility model provides a two arc two hole plastic-aluminum membrane deep-drawing moulds, includes that first towards seat and second dash the seat, first dash the seat with the second is towards and is provided with the guide part between the seat, first dash the seat through the guide part with the second dashes seat sliding connection, first dash the seat and be provided with the drift, the second dash the seat be provided with the concave and convex matching towards hole of drift.

Further, the first punching seat is provided with a convex arc-shaped punching head and a concave arc-shaped punching head, the second punching seat is provided with a concave arc-shaped punching pit and a convex arc-shaped punching pit, the convex arc-shaped punching head corresponds to the concave arc-shaped punching pit, and the concave arc-shaped punching head corresponds to the convex arc-shaped punching pit.

Furthermore, the convex arc-shaped punch and the concave arc-shaped punch are connected in parallel to form a first wavy arc surface, the concave arc-shaped punching pit and the convex arc-shaped punching pit are connected in parallel to form a second wavy arc surface, and the first wavy arc surface and the second wavy arc surface can meet the processing requirement of the double-arc-shaped aluminum-plastic film and can improve the punching efficiency and the processing speed of the punching die on the aluminum-plastic film.

Further, the depth of convex arc-shaped punch head equals the depth of concave arc-shaped punching pit, and the depths are 0.2-8 mm, so that the processed aluminum-plastic film can be matched with double-arc-shaped bare cells with different thicknesses.

Furthermore, the convex arc punch and the concave arc punch pit have the same radian A, and A is more than or equal to 20 degrees and less than or equal to 150 degrees, so that the processed aluminum-plastic film can be matched with double-arc bare cells with different radians.

Further, the depth of concave arc drift equals with the depth of convex arc towards the hole, is 0.2 ~ 8mm to the naked electric core of two arcs that make the aluminium-plastic membrane that processes out can match different thickness.

Furthermore, the concave arc punch and the convex arc punch pit have the same radian B, and B is more than or equal to 20 degrees and less than or equal to 150 degrees, so that the processed aluminum-plastic film can be matched with double-arc bare cells with different radians.

Further, protruding arc drift with concave arc dashes the hole and is N (N >1), concave arc drift with protruding arc dashes the hole and is M (M >1), satisfies the relational expression: the absolute value N-M is more than or equal to 0 and less than or equal to 1, thereby improving the depth punching efficiency and the processing speed of the aluminum-plastic film.

Furthermore, the first punching seat is provided with a plurality of airbag die heads, the second punching seat is provided with airbag die pits corresponding to the airbag die heads, and when the airbag die heads press against the airbag die pits, the aluminum-plastic film can be formed into an air bag, so that gas or redundant electrolyte in the subsequent process of the battery cell is stored and extracted from the air bag.

Further, the outside that the second dashes the seat is provided with the riser, the output of riser connect in the first top of dashing the seat, the riser is the push rod motor, the push rod motor is connected with the PLC controller, and under the control of PLC controller, the push rod motor can drive the lift of first seat of dashing for the mould that dashes can process the plastic-aluminum membrane of dysmorphism battery high-efficiently.

The beneficial effects of the utility model reside in that: the utility model discloses a first seat and the second seat that dashes, first seat and the second that dashes is provided with the guide part between the seat, first seat that dashes through guide part and second seat sliding connection that dashes, first seat that dashes is provided with the drift, the second dashes the seat and is provided with the dashing hole with the unsmooth matching of drift, in the in-process of dashing the depth to the plastic-aluminum membrane, lay the plastic-aluminum membrane on the dashing hole of second seat that dashes at first, when first seat that dashes is followed the outer wall slip of guide part to the second seat that dashes, the guide part can improve the stability of dashing the depth of first seat and second seat that dashes, and, the drift of first seat that dashes and the dashes the pit of second seat that dashes have unsmooth matching's corresponding relation, make drift and dashing the pit can share the depth of dashing of plastic-aluminum membrane each other, thereby the; in addition, this deep drawing mould can make the plastic-aluminum membrane form curved towards the hole, and the plastic-aluminum membrane that has the arc towards the hole can tightly wrap up arc electricity core to improve the outward appearance of arc electricity core, avoided arc electricity core to receive the secondary extrusion, reduced the inside probability of corroding of electricity core widely, improved the security performance of arc electricity core.

Drawings

Fig. 1 is a schematic structural diagram of embodiment 1 of the present invention.

Fig. 2 is an exploded view of embodiment 1 of the present invention.

Fig. 3 is a schematic diagram of the relationship between the convex arc-shaped punch, the concave arc-shaped pit and the convex arc-shaped pit of embodiment 1 of the present invention.

Fig. 4 is a schematic structural diagram of embodiment 2 of the present invention.

Wherein: 1-a first punch seat; 2-a second punch seat; 3-a guide; 4-a lifter; 11-convex arc punch; 12-a concave arc punch; 13-an air bag die head; 21-concave arc-shaped pit punching; 22-convex arc-shaped pit punching; 23-air bag mold pit.

Detailed Description

As used in this specification and the appended claims, certain terms are used to refer to particular components, and it will be appreciated by those skilled in the art that a manufacturer may refer to a component by different names. This specification and claims do not intend to distinguish between components that differ in name but not function. In the following description and in the claims, the terms "include" and "comprise" are used in an open-ended fashion, and thus should be interpreted to mean "include, but not limited to. "substantially" means within an acceptable error range, and a person skilled in the art can solve the technical problem within a certain error range to substantially achieve the technical effect.

In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", horizontal "and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.

In the present invention, unless otherwise expressly specified or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can include, for example, fixed connections, detachable connections, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

The present invention will be described in further detail with reference to the accompanying drawings 1 to 4 and the specific embodiments, but the present invention is not limited thereto.

Example 1

A double-arc double-pit aluminum plastic film deep punching die comprises a first punching seat 1 and a second punching seat 2, a guide part 3 is arranged between the first punching seat 1 and the second punching seat 2, the first punching seat 1 is in sliding connection with the second punching seat 2 through the guide part 3, a punch is arranged on the first punching seat 1, a punching pit which is in concave-convex matching with the punch is arranged on the second punching seat 2, the punch is arranged at the bottom of the first punching seat 1, the punching pit is arranged at the top of the second punching seat 2, the surface area of the punch accounts for one third to four fifths of the bottom area of the first punching seat 1, the surface area of the punching pit accounts for one third to four fifths of the upper surface area of the second punching seat 2, the guide part 3 is an inward-shrinking guide column, one end of the guide column is arranged in the first punching seat 1, the other end of the guide column is arranged in the second punching seat 2, when the first punching seat 1 slides to the second punching seat 2 along the guide part 3, the guide column retracts from the surface of the second punching seat 2 to the interior of the first punching seat 1, the number of guide posts is four to eight.

Preferably, the first punching seat 1 is provided with a convex arc-shaped punch 11 and a concave arc-shaped punch 12, the second punching seat 2 is provided with a concave arc-shaped punching pit 21 and a convex arc-shaped punching pit 22, the convex arc-shaped punch 11 corresponds to the concave arc-shaped punching pit 21, the concave arc-shaped punch 12 corresponds to the convex arc-shaped punching pit 22, when the first punching seat 1 presses the aluminum plastic film laid on the second punching seat 2, the aluminum plastic film can form arc-shaped double pits, the arc-shaped double pits not only meet the encapsulation of the arc-shaped battery cell, but also realize that the punching depth of the aluminum plastic film is reduced in the longitudinal opposite direction, avoid causing larger damage to the aluminum plastic film like the single pit punching depth, and further improve the yield of the aluminum plastic film.

Preferably, the convex arc-shaped punch 11 and the concave arc-shaped punch 12 are connected in parallel to form a first wavy arc surface, the concave arc-shaped punching pit 21 and the convex arc-shaped punching pit 22 are connected in parallel to form a second wavy arc surface, wherein the convex arc-shaped punch 11, the concave arc-shaped punch 12, the concave arc-shaped punching pit 21 and the convex arc-shaped punching pit 22 are made of steel, when the first punching seat 1 is pressed towards the second punching seat 2, the first wavy arc surface and the second wavy arc surface are matched in a concave-convex mode, and the first wavy arc surface and the second wavy arc surface are smooth in surface.

Preferably, the depth of the convex arc punch 11 is equal to that of the concave arc punching pit 21, the depth of the convex arc punch 11 is H1, the depth of the concave arc punching pit 21 is H1 which is 0.5-5 mm, and the surface area of the convex arc punch 11 is equal to that of the concave arc punching pit 21.

Preferably, the convex arc punch 11 and the concave arc punch pit 21 have the same radian A, and A is more than or equal to 30 degrees and less than or equal to 120 degrees.

Preferably, the depth of the concave arc punch 12 is equal to that of the convex arc punching pit 22, the depth of the concave arc punch 12 and that of the convex arc punching pit 22 are both H2 and H2 which are 0.5-5 mm, and the surface area of the concave arc punch 12 is equal to that of the convex arc punching pit 22.

Preferably, the concave arc punch 12 and the convex arc punch pit 22 have the same radian B, and the radian B is more than or equal to 30 degrees and less than or equal to 120 degrees.

Preferably, the convex arc punch 11 and the concave arc punch pit 21 are both N (N >1), and the concave arc punch 12 and the convex arc punch pit 22 are both M (M >1), satisfying the relation: and the total surface area of the two convex arc punches 11 and the two concave arc punches 12 accounts for one third of the bottom surface area of the first punch holder 1, and the total surface area of the two concave arc punch pits 21 and the two convex arc punch pits 22 accounts for one third of the upper surface area of the second punch holder 2.

Preferably, the first punching seat 1 is provided with a plurality of airbag die heads 13, the second punching seat 2 is provided with airbag die pits 23 corresponding to the airbag die heads 13, the number of the airbag die heads 13 and the number of the airbag die pits 23 are two, the airbag die heads 13 and the airbag die pits 23 are used for processing aluminum plastic films to form air bags, and storage and extraction of gas or redundant electrolyte in the subsequent process of the battery cell from the air bags are guaranteed.

Example 2

The difference between the embodiment and the embodiment 1 is that the lifter 4 is arranged on the outer side of the second punching seat 2, the output end of the lifter 4 is connected to the top of the first punching seat 1, and the lifter 4 is used for driving the first punching seat 1 to ascend and descend along the guide part 3.

Lifter 4 can adopt the push rod motor, connects the PLC controller with the push rod motor, and under the control of PLC controller, the push rod motor can drive the first lift that dashes seat 1 steadily, and lifter 4 can improve the precision that opens and shuts of deep mould for deep mould can process the plastic-aluminum membrane of dysmorphism battery high-efficiently.

Other structures of this embodiment are the same as those of embodiment 1, and are not described herein again.

Obviously, the utility model discloses can improve first towards the deep stability of dashing of seat 1 and second towards seat 2, and, first drift towards seat 1 and the second towards the corresponding relation that the hole that dashes of seat 2 has unsmooth matching, make the drift with dash the hole and can share the deep degree of depth that dashes of plastic-aluminum membrane each other, thereby the damage of plastic-aluminum membrane has been reduced, use this mould can process out the plastic-aluminum membrane in two pits of double arc, the plastic-aluminum membrane of processing out can be with the perfect cooperation of two arc electricity cores, thereby the processing cost of plastic-aluminum membrane has been practiced thrift, double arc soft-packing lithium ion battery's production and processing has been satisfied.

Variations and modifications to the above-described embodiments may become apparent to those skilled in the art from the disclosure and teachings of the above description. Therefore, the present invention is not limited to the above-mentioned embodiments, and any obvious modifications, replacements or variations made by those skilled in the art on the basis of the present invention belong to the protection scope of the present invention. Furthermore, although specific terms are employed herein, they are used in a generic and descriptive sense only and not for purposes of limitation.

Claims

1. The utility model provides a two arc two hole plastic-aluminum membrane deep-drawing moulds which characterized in that: including first towards seat (1) and second towards seat (2), first towards seat (1) with the second is towards and is provided with guide part (3) between seat (2), first towards seat (1) pass through guide part (3) with the second is towards seat (2) sliding connection, first towards seat (1) is provided with the drift, the second towards seat (2) be provided with the concave-convex matching towards the pit of drift.

2. The double arc double pit aluminum-plastic film deep drawing die of claim 1, characterized in that: first towards seat (1) and be provided with convex arc drift (11) and concave arc drift (12), the second is towards seat (2) and is provided with concave arc towards hole (21) and convex arc towards hole (22), convex arc drift (11) correspond to concave arc is towards hole (21), concave arc drift (12) correspond to convex arc is towards hole (22).

3. The double arc double pit aluminum-plastic film deep drawing die of claim 2, characterized in that: the convex arc-shaped punch head (11) and the concave arc-shaped punch head (12) are connected in parallel to form a first wavy arc surface, and the concave arc-shaped punching pit (21) and the convex arc-shaped punching pit (22) are connected in parallel to form a second wavy arc surface.

4. The double-arc double-pit aluminum-plastic film deep drawing die as claimed in claim 2 or 3, wherein: the depth of the convex arc-shaped punch head (11) is equal to that of the concave arc-shaped punching pit (21), and the depth is 0.2-8 mm.

5. The double-arc double-pit aluminum-plastic film deep drawing die as claimed in claim 2 or 3, wherein: the convex arc punch head (11) and the concave arc punch pit (21) have the same radian A, and A is more than or equal to 20 degrees and less than or equal to 150 degrees.

6. The double-arc double-pit aluminum-plastic film deep drawing die as claimed in claim 2 or 3, wherein: the depth of the concave arc-shaped punch head (12) is equal to that of the convex arc-shaped punching pit (22), and the depth is 0.2-8 mm.

7. The double-arc double-pit aluminum-plastic film deep drawing die as claimed in claim 2 or 3, wherein: the concave arc punch head (12) and the convex arc punch pit (22) have the same radian B, and B is more than or equal to 20 degrees and less than or equal to 150 degrees.

8. The double-arc double-pit aluminum-plastic film deep drawing die as claimed in claim 2 or 3, wherein: the convex arc punch (11) and the concave arc punch pit (21) are N (N >1), the concave arc punch (12) and the convex arc punch pit (22) are M (M >1), and the relation is satisfied: the absolute value N-M is more than or equal to 0 and less than or equal to 1.

9. The double arc double pit aluminum-plastic film deep drawing die of claim 1, characterized in that: the first punching seat (1) is provided with a plurality of air bag die heads (13), and the second punching seat (2) is provided with air bag die pits (23) corresponding to the air bag die heads (13).

10. The double arc double pit aluminum-plastic film deep drawing die of claim 1, characterized in that: the outer side of the second punching seat (2) is provided with a lifter (4), and the output end of the lifter (4) is connected to the top of the first punching seat (1).