CN206432294U

CN206432294U - A kind of double hole moulds

Info

Publication number: CN206432294U
Application number: CN201720147374.5U
Authority: CN
Inventors: 曾展华
Original assignee: Dongguan Dimensional Electronic Technology Co Ltd
Current assignee: Dongguan Dimensional Electronic Technology Co Ltd
Priority date: 2017-02-20
Filing date: 2017-02-20
Publication date: 2017-08-22
Anticipated expiration: 2027-02-20

Abstract

The utility model provides a kind of double hole moulds, including two drifts being disposed adjacent, it is drift afterbody to define the adjacent one end of two drifts, one end opposite with its drift afterbody of two drifts is drift closedtop position, the end surfaces of two drifts are plane, and drift afterbody and drift closedtop position have difference in height so that stamp out the depth of each pit come has depth difference from its one end corresponding with drift afterbody to the other end corresponding with drift closedtop position.For in lithium battery processing, battery outward appearance can be improved, the qualification rate of product is improved.

Description

A kind of double hole moulds

Technical field

The utility model is related to lithium-battery mold field, and in particular to a kind of double hole moulds.

Background technology

Aluminum plastic film has high barrier, good cold stamping shaped property, paracentesis resistance, electrolyte resistance stability because of it With electrical insulating property and be widely used in lithium battery packaging.Square（Tabular）The aluminum plastic film forming field of lithium battery is general to use tool There are two surfaces parallel and height identical drift double hole moulds are once molded two adjacent pits on an aluminum plastic film. However, easily cause after battery packages afterbody to leave male and fomale(M＆F) in processing, unnecessary space and the problems such as not hard battery afterbody.

Utility model content

Technical problem to be solved in the utility model is to provide a kind of improved double hole moulds, solves to use at present The rear afterbodys of traditional double formed in mould aluminum plastic films in hole have male and fomale(M＆F), battery afterbody is not hard after unnecessary space and packaging Problem.

Technical problem to be solved in the utility model is achieved by the following technical programs：

A kind of double hole moulds, including two drifts being disposed adjacent, it is drift to define the adjacent one end of two drifts Afterbody, one end opposite with its drift afterbody of two drifts is drift closedtop position, and the end surfaces of two drifts are plane, and Drift afterbody and drift closedtop position have difference in height so that the depth for stamping out each pit come is corresponding with drift afterbody from it One end there is depth difference to the other end corresponding with drift closedtop position.

As to further improvement of the utility model, a space is left between two described drifts, centre is defined as At gap bridge.

As to further improvement of the utility model, two described punch shapes are identical, but cheated based on one of them, Another is cheated to be secondary, and main hole and secondary hole have difference in height.

As to further improvement of the utility model, the drift closedtop position specific impulse head-tail of described each drift is high 0.2-0.5mm。

As to further improvement of the utility model, high 1-2mm is cheated in described main hole than pair.

The beneficial effects of the utility model are：

The punch head surface of double hole moulds after improvement has certain gradient, makes the lithium battery packaging film of shaping and battery core complete Full saturation is coincide, and is allowed battery erection welding to come out afterbody smooth attractive in appearance, is solved battery problem of appearance.Meanwhile, major-minor hole height Different designs facilitates battery roll core to load pack case, and battery roll core loads the higher hole side energy fast and easy positioning of height, protected Card battery core just enters shell.Double hole moulds of the present utility model are mainly used in composite membrane, such as double holes are formed on aluminum plastic film.

Brief description of the drawings

Fig. 1 is a kind of punch structure schematic diagram of an embodiment of double hole moulds of the utility model.

Fig. 2 is a kind of positive side structure schematic diagram of the drift of an embodiment of double hole moulds of the utility model.

Fig. 3 is a kind of positive side structure schematic diagram of an embodiment of double hole moulds of the utility model.

Embodiment

Explanation and embodiment are further illustrated to the utility model below in conjunction with the accompanying drawings.

Drawing reference numeral in Fig. 1 is：3 at drift afterbody 1, drift closedtop side 2, middle gap bridge.

Drawing reference numeral in Fig. 2 is：Main hole 5, pair hole 4.

As shown in figure 1, what a kind of double hole moulds were disposed adjacent including two, shape identical drift body, this reality Apply drift body in example to be substantially square, end edge is designed with fillet.Space is left between two drift bodies, is defined as 3 at middle gap bridge, one end close to each other of drift body is corresponding with the afterbody of battery plastic-aluminum packaging film, is defined herein as punching Head-tail 1, drift body it is corresponding with the closedtop position of the other end that drift afterbody 1 is opposite and battery plastic-aluminum packaging film, be defined as Drift closedtop side 2, namely go out lug side.The end surface of drift body is smooth, but drift afterbody 1 and drift closedtop side 2 With difference in height, the height on specially drift closedtop side 2 wants 1 high 0.2 millimeter ~ 0.5 millimeter of specific impulse head-tail, high in the present embodiment 0.5mm, as shown in Figure 2.In this way, the end surface of two drift bodies is monolithically fabricated a V-shaped, its plastic-aluminum packaging film being made Thickness at the closedtop side of the afterbody thickness ratio battery of battery is thick, and rear afterbody no longer has male and fomale(M＆F) and unnecessary space, So as to which the battery afterbody after packing can keep hard state, with more perfect outward appearance.

As shown in figure 3, two of a kind of double hole moulds of the present embodiment are rushed and cheat 5 based on first, another is cheated to be secondary 4, major-minor hole has difference in height, and high 1mm is cheated in main hole than pair, and the difference in height facilitates battery roll core to load pack case, battery roll core dress Entering the higher hole side of height can fast and easy positioning；Secondly convenient to distinguish airbag side, battery has the differentiation of positive and negative airbag, and airbag is all It is placed on 5 sides of main hole, the main hole in double holes is when being also the higher hole of height, the convenient packaging for distinguishing shell；And it is high when encapsulation The higher hole of degree is also used for positioning.

In other embodiment, the shape of drift body can not be square, but two drift body shapes are identical and two punchings The end surface of head is plane.In other embodiment, the height on drift closedtop side 2 is arrived for 1 low 0.2 millimeter than drift afterbody 0.5 millimeter, to adapt to the battery or content of different model.

Above content is to combine specific preferred embodiment further detailed description of the utility model, it is impossible to Assert that specific implementation of the present utility model is confined to these explanations.For the ordinary skill of the utility model art For personnel, without departing from the concept of the premise utility, some simple deduction or replace can also be made, should all be regarded To belong to protection domain of the present utility model.

Claims

1. a kind of double hole moulds, including two drifts being disposed adjacent, it is drift tail to define the adjacent one end of two drifts Portion, one end opposite with its drift afterbody of two drifts is drift closedtop position, and the end surfaces of two drifts are plane, and punching Head-tail and drift closedtop position have difference in height so that the depth for stamping out each pit come is corresponding with drift afterbody from it One end has depth difference to the other end corresponding with drift closedtop position.

2. a kind of double hole moulds according to claim 1, it is characterised in that left between described two drifts Gap, is defined as at middle gap bridge.

3. a kind of double hole moulds according to claim 1, it is characterised in that described two punch shapes are identical, but Cheated based on one of them, another is cheated to be secondary, main hole and secondary hole have difference in height.

4. a kind of double hole moulds according to claim 1, it is characterised in that the drift closedtop position of each drift The high 0.2-0.5mm of specific impulse head-tail.

5. a kind of double hole moulds according to claim 3, it is characterised in that cheat high 1-2mm than pair in described main hole.