CN2102197U

CN2102197U - Die for plastic film punching shaping

Info

Publication number: CN2102197U
Application number: CN 91204107
Authority: CN
Inventors: 吴松山; 朱惠珍; 吴新君
Original assignee: Individual
Current assignee: Individual
Priority date: 1991-03-15
Filing date: 1991-03-15
Publication date: 1992-04-22

Abstract

The utility model relates to a die for the plastic film punching shaping, composed of two metal plates. A corrosion resisting film layer is manufactured by a negative veins negative film and a positive veins negative film with the same pattern. Through etching and processing, a concave die and a convex die are formed. The utility model has the advantages of simple die structure and easy manufacturing. The utility model can be widely used for the plastic films and the other material punching three-dimensional pattern.

Description

Die for plastic film punching shaping

The utility model belongs to field of machining, relates to a kind of diel, particularly a kind of punching press plastic film forming mould.

Will be on the plastic film material, stamp out the figure of definite shape, to satisfy the needs of function or decoration, the mould that adopts roughly has two kinds at present: a kind of is the version mould that press is used, in order to impression or thermoprint figure, this version mould does not have die because of having only punch, and therefore the figure of impression is very shallow, the obscure boundary of its figure more can't be to rubber-like plastic film punch process; Another kind of then be concave, convex pattern tool by machine cut processing, its mould structure complexity, the process-cycle is long, and the expense height is very uneconomical.

The purpose of this utility model is to overcome above-mentioned shortcoming, and a kind of punching press plastic film forming mould is provided, and utilizes its easy mould, satisfies diaphragm material, and particularly the plastic film panel stamps out clear, solid figure accurately.

The utility model is finished in the following manner: the geometrical pattern (comprising literal, symbol, mark and figure) that needs is pressed into solid figure is taken into internal or female screw (or positive line) egative film, copies an egative film that the line formula is opposite again with this egative film; Get two sheet metals, with the yin, yang egative film sample that on two metallic plates, falls respectively, to obtain the rete against corrosion of the yin, yang line formula pattern identical with the egative film figure; After etching and processing, a metallic plate has obtained punch, and another piece has then obtained die; Two metallic plates are processed alignment pin, hole after by concave, convex figure correspondence, constitute complete upper and lower mould, be provided with punch process plastic film or other membrane-like material, constitute solid figure.

Now be described further in conjunction with legend and embodiment.

Fig. 1 is the metal form schematic diagram that is printed on rete against corrosion;

Fig. 2 is a die structure dwg.

With reference to Fig. 1, on its metal form, make the rete against corrosion of required figure earlier by the yin, yang egative film, metallic plate preferably adopts copper coin, and thickness is preferably 2～4 millimeters and gets final product.Rete against corrosion can obtain by photoresist process or serigraphy anti-corrosive coating method, with two metal forms that are printed on resist pattern, carries out etching and processing simultaneously.The etching solution difference that different metal forms is used is decided with this routine copper coin, can etching in ferric trichloride or copper chloride solution, and with the depth of etched time control die cavity, the general degree of depth is in 0.5 millimeter.Since two metallic plates that are printed on yin, yang line formula pattern be carry out with the time etched, so the punch height and the die degree of depth of formation are identical; Because the erosion process is also with the phenomenon of lateral erosion deeply, and therefore, the figure of punch diminishes slightly, and the figure of die then enlarges, this just in time constitutes the required die clearance of punching press diaphragm again.

With reference to Fig. 2, patrix (1) and the contraposition of the involutory back of counterdie (2) by alignment pin, hole (3) assurance mould are placed on workpiece (plastic film) (4) in the mould, can carry out punching press on any press equipment.For mold open and closed convenience, stick double-sided adhesive on (5), (6) two sides of mould respectively, counterdie this moment (2) is fixed on the workbench of forcing press, and patrix (1) is bonded on the head, and mould is opening and closing with the ascending, descending of forcing press.

The utility model is simple in structure, and is easy to make, do not need any mould bases equipment, and can adapt to multiple forcing press and use, the clear patterns of punching press, accurate, the three-dimensional picture and text that are specially adapted to the thin film switch panel are processed.

Claims

1, a kind of punching press plastic film forming mould, constituted by two metallic plates, being fixed with alignment pin and locating hole on two metallic plates respectively connects and contraposition upper and lower mould, it is characterized in that on two metallic plates, the pattern or the character and graphic that form through etching are arranged respectively, constitute the shape chamber of corresponding punch and die.