CN201098923Y

CN201098923Y - Die cutting tool for flexible circuit board

Info

Publication number: CN201098923Y
Application number: CNU2007203066453U
Authority: CN
Inventors: 李敏
Original assignee: Individual
Current assignee: Individual
Priority date: 2007-11-27
Filing date: 2007-11-27
Publication date: 2008-08-13
Anticipated expiration: 2017-11-27

Abstract

A die cutting tool bit of a flexible circuit board is used for parting off a uniwafer flexible circuit from a fullpage flexible circuit board, which consists of a basal plate, a soleplate and a plurality of die cutting knife tackles, wherein, the shape of the die cutting knife tackle is matched with that of the uniwafer flexible circuit. During the cutting processing, a fullpage flexible circuit is spliced with a piece of released paper by bonding agent and the pressure is adjusted, after punching and die cutting, the waste material on the fullpage flexible circuit is torn off, and the uniwafer flexible circuit is orderly arranged on the released paper, thereby facilitating storing and checking the amount. Compared with the prior art, the tool bit is simple in structure and has a reusable blade; furthermore, a plurality of die cutting knife tackles can be distributed and arranged on one basal plate; a plurality of uniwafer flexible circuit can be processed by cutting for once, thereby ensuring high production efficiency and greatly reducing production cost.

Description

A kind of cross cutting cutter of flexible PCB

Technical field

The utility model relates to a kind of cross cutting cutter, is meant a kind of cross cutting cutter that is used to cut flexible PCB specifically.

Background technology

Flexible circuit claims flexible circuit again, be a kind ofly to have height reliability, an excellent flexible printed circuit with what mylar or polyimides were that base material is made, by on flexible frivolous plastic sheet, embedding circuit design, make a large amount of precision elements of heap embedding in narrow and the confined space, thereby form flexible flexible circuit.This kind circuit is can be arbitrarily crooked, fold wt is light, and volume is little, and thermal diffusivity is good, and is easy for installation, broken through traditional interconnection technique.

In the justifying flexible circuit, a large amount of monolithic flexible circuits is arranged regular embedding wherein, the monolithic flexible circuit need be taken out from the justifying flexible circuit, just can offer the client and use.Traditional separation method adopts concavo-convex die stamping to separate, cutter structure as shown in Figure 1, constitute by upper cover plate 11, patrix lamina tecti 12, top board 13, convex template 14, stripper 15, concave template 16, lower bolster 17, base plate 18, the form fit of the convex template 14 of mould, the shape of concave template 16 and monolithic flexible circuit is gone out the monolithic flexible circuit by mould from the justifying flexible circuit.Because the shape of monolithic flexible circuit is varied, need customized a large amount of mould, because the price height of processing mold, and adopting a punching press of this method can only process a monolithic flexible circuit, production efficiency is low, has increased production cost.When the structure of monolithic flexible circuit is complicated, the required precision height of corresponding Mould Machining, the Installation and Debugging level requires highly in the operation, has increased the difficulty of processing.So, need a kind of simple in structure, the cross cutting cutter that working (machining) efficiency is high, can disposable a plurality of flexible circuit monolithics be taken out from the justifying flexible PCB, " L-D " technology is meant the monolithic flexible circuit from justifying flexible circuit taking-up process, make monolithic processing become multi-disc processing, " L " refers to monolithic processing, and " D " refers to multi-disc processing.

The utility model content

The utility model provides a kind of simple in structure, cross cutting cutter that is used to cut flexible PCB that working (machining) efficiency is high.

The utility model adopts following technical scheme:

The cross cutting cutter of this flexible PCB is used for the monolithic flexible circuit is split from the justifying flexible PCB, comprises upper substrate, base plate and is fixedly arranged on several die-cutting rule groups of upper substrate lower surface, and described upper substrate and base plate be arranged in parallel; Described die-cutting rule group is made up of some blades, and the shape of the shape of this die-cutting rule group and monolithic flexible circuit matches.

For the ease of the control cutting accuracy, a kind of preferred implementation is: described base plate is provided with four root posts, and described upper substrate is provided with the fixing hole that matches with described column, and described column is arranged in this fixing hole.When cutting, upper substrate moves along the direction of this column under the drive of forcing press, guarantees the precision of cutting.

That the fixed form of described upper substrate and die-cutting rule group can adopt is gluing, magnetic force fixing means or other known modes, is convenient to the demolition and the recycling of blade.A kind of preferred implementation is: described upper substrate is a magnetic sheet, and described die-cutting rule group is made up of the steel blade and is magneted in upper substrate.

The utility model adopts die-cutting rule group cutting and separating monolithic flexible circuit, compare with prior art, cutter structure is simple, blade can reuse, and greatly reduces production cost, and, on a upper substrate, can lay a plurality of die-cutting rule groups, once cutting can process a plurality of monolithic flexible circuits, the production efficiency height.

Description of drawings

Fig. 1 is the three-dimensional decomposition texture schematic diagram of existing concavo-convex die stamping cutter;

Fig. 2 is a perspective view of the present utility model;

Fig. 3 is a vertical structure schematic diagram of the present utility model;

Blade position schematic diagram when Fig. 4 is the utility model cross cutting;

Fig. 5 is a kind of die-cutting rule group shape schematic diagram of the present utility model.

The specific embodiment

Following accompanying drawing describes the specific embodiment of the present utility model in detail.

This cross cutting cutter is made of upper substrate 21, base plate 24, four root posts 22 and die-cutting rule group 23.Upper substrate 21 is a magnetic sheet, and die-cutting rule group 23 is made up of steel blade 25 and is magneted in the upper substrate lower surface.The shape of the shape of die-cutting rule group 23 and monolithic flexible circuit matches, and Fig. 5 illustrates wherein a kind of profile of die-cutting rule group 23.On the upper substrate 21 a plurality of die-cutting rule groups 23 can be set, each die-cutting rule group 23 is provided with corresponding with monolithic flexible circuit arrangement mode, and such punching press can cut out the multi-disc flexible circuit.Four root posts 22 are fixedly arranged on four angles of base plate 24, and are arranged in the fixing hole of upper substrate 21, improve the precision of punching press.Also be provided with backing plate 34 on the base plate 24, avoid damaging with protection base plate 24.

During cutting processing, with adhesive 33 justifying flexible circuit 31 is adhered on the peeling paper 32 earlier, regulate the size of pressure, can pass justifying flexible circuit 31 when making blade 25 cutting and cut the degree of depth of 40%-50% in the peeling paper 32, behind the punching press cross cutting, tear the waste material on the justifying flexible circuit 31, the monolithic flexible circuit is to be arranged on the peeling paper 32 regularly, is convenient to keeping and checks quantity.

Above-mentioned is a specific embodiment of the present utility model, but design concept of the present utility model is not limited thereto, and allly utilizes this design that the utility model is carried out the change of unsubstantiality, all belongs to the behavior of invading the utility model protection domain.

Claims

1, a kind of cross cutting cutter of flexible PCB, be used for the monolithic flexible circuit is split from the justifying flexible PCB, it is characterized in that: comprise upper substrate, base plate and be fixedly arranged on several die-cutting rule groups of upper substrate lower surface, described upper substrate and base plate be arranged in parallel; Described die-cutting rule group is made up of some blades, and the shape of the shape of this die-cutting rule group and monolithic flexible circuit matches.

2, according to the cross cutting cutter of the described a kind of flexible PCB of claim 1, it is characterized in that: described base plate is provided with four root posts, and described upper substrate is provided with the fixing hole that matches with described column, and described column is arranged in this fixing hole.

3, according to the cross cutting cutter of the described a kind of flexible PCB of claim 1, it is characterized in that: described die-cutting rule group is gluing in the upper substrate lower surface.

4, according to the cross cutting cutter of the described a kind of flexible PCB of claim 1, it is characterized in that: described upper substrate is a magnetic sheet, and described die-cutting rule group is magneted in the upper substrate lower surface.