CN202162857U

CN202162857U - Punching and cutting die for plastic piece

Info

Publication number: CN202162857U
Application number: CN2011202226095U
Authority: CN
Inventors: 王军
Original assignee: XIAMEN JIAXIN PRECISE METAL CO Ltd
Current assignee: XIAMEN JIAXIN PRECISE METAL CO Ltd
Priority date: 2011-06-28
Filing date: 2011-06-28
Publication date: 2012-03-14
Anticipated expiration: 2021-06-28

Abstract

The utility model discloses a punching and cutting die for a plastic piece, which comprises a cylinder, an upper die shoe, an upper die, a cutting die, a pressing board, a discharging die, a discharging spring, a punch, a lower die and a lower die shoe. One end of the cutting die is fixed at the inner side of the upper die shoe and is arranged in the upper die in a sleeved way, and the surface of the other end of the cutting die forms a cutting edge obliquely inwards; the pressing board is movably arranged in the cutting die in a sleeved way; a piston rod of the cylinder is pressed against the pressing board after penetrating through the upper die shoe; and the discharging board is connected on the punching with a gap in a sleeved way, the discharging spring is arranged between the discharging board and the lower die shoe, and the lower die is fixed on the lower die shoe. As the surface of the other end of the cutting die forms the cutting edge obliquely inwards, the punching and cutting force for punching and cutting the plastic piece are greatly reduced, the occurrence of phenomenon of overflowing, cement pulling and broken pressing of adhesive plastic optical cement in the punching and cutting process are better avoided, and the size of punched and cut products is stable and accurate.

Description

Working of plastics punching press knife edge die

Technical field

The utility model relates to a kind of stamping die, particularly relates to a kind of working of plastics punching press knife edge die.

Background technology

As the new industry in the mobile phone industrial chain, handset touch panel is the main accessory of mobile phone, and abundant circuit is contained in the inside; Adopt the multilayer PET material and OCA is overlapping combines; After completion is fitted in the circuit printing, need by the size shape by die-cutting, because abundant printed circuit is contained in the inside; Common cross cutting traditional handicraft is to adopt laser cutting die or etching cutting die; Because laser cutting die or etching cutting die machining accuracy are poor, rough surface, can cause clipped cut, circuit weigh wounded, overflow glue, draw phenomenons such as glue and size instability.The working of plastics die cutting device of commonly using is to realize through drift and cooperating of die, and the die-cut end of its die is flat mouthful; There is not cutting edge; It is bigger to cut pressure, cause easily to be used for overflowing, draw glue, weighing wounded of adhered plastics optical cement, and the product size that forms is unstable.

The utility model content

The working of plastics punching press knife edge die that the purpose of the utility model is to provide a kind of optical cement to be difficult for overflowing, product size is stable.

For realizing above-mentioned purpose, the technical solution of the utility model is:

The utility model is a kind of working of plastics punching press knife edge die, and it comprises cylinder, goes up baffle plate, patrix, cut-out die, holding pad, stripper plate, takes off and expect spring, drift, counterdie, following baffle plate; Described cylinder block is installed in the patrix plate outer side, the fixing baffle plate inboard of going up of patrix; Described cut-out die one end is fixed on the baffle plate inboard and is nested with in patrix, cuts off the oblique inside formation cutting edge in die other end surface, and cutting edge is inclination; Described holding pad activity is nested with in cutting off die; Described cylinder piston rod passes the patrix base top and is pressed on the holding pad; Described stripper plate gap is socketed on the drift, between stripper plate and following baffle plate, is provided with and takes off the material spring, and counterdie is fixed on down on the baffle plate.

Described cylinder piston rod passes the patrix base top through connecting rod and is pressed on the holding pad.

After adopting such scheme; Because the utility model is cutting off the oblique inside formation cutting edge of die other end edge surface; Greatly reduce the blanking pressure of the die-cut working of plastics of the utility model; Avoided the phenomenon of overflowing, drawing glue, weighing wounded of adhered plastics optical cement in the die-cut process to take place preferably, the dimensionally stable of die-cut product, accurate.In addition, the binder mode of the utility model makes the cylinder binder into from traditional spring binder, reduces the extruding to product with this, reaches adjustable in pressure, overcomes damage of circuit.This mould structure not only has characteristics such as dimensional stability, surface smoothness height, and long service life, adjustable in pressure, simple operation and other advantages.

Below in conjunction with accompanying drawing and specific embodiment the utility model is further described.

Description of drawings

Fig. 1 is the front view of the utility model.

The specific embodiment

As shown in Figure 1, the utility model is a kind of working of plastics punching press knife edge die, and it comprises cylinder 1, last baffle plate 2, patrix 3, cuts off die 4, holding pad 5, stripper plate 6, takes off material spring 7, drift 8, counterdie 9, time baffle plate 10.

Described cylinder 1 cylinder body is installed in baffle plate 2 outsides, patrix 3 fixing baffle plate 2 inboards of going up; Described cut-out die 4 one ends are fixed on baffle plate 2 inboards and are nested with in patrix 3, cut off the oblique inside formation cutting edge 41 in die 4 other end dies surface, and cutting edge is inclination.

Described holding pad 5 activities are nested with in cutting off die 4; Described cylinder 1 piston rod passes baffle plate 2 roof pressures on holding pad 5 through connecting rod; Described counterdie 9 is fixed on down on the baffle plate 10.Stripper plate 6 gaps are socketed on the drift 8, and setting is taken off material spring 7 and taken off material spring 7 and pass the through hole on the counterdie between stripper plate 6 and following baffle plate 10.

The operation principle of the utility model:

1,With the method that the hardware stamping mould combines with the cutting die principle, adopt the structure of hardware stamping mould, overcome the difficult problem of machining accuracy, utilize the cutting die principle to reach keen edge.

,Drift 8 mold inserts adopt projection grinder, and precision reaches 0.002, and the surface reaches mirror effect; Template adopts accurate slow silk processing, and precision reaches 0.005, and edge of a knife form adopts the oblique edge of a knife of cutting die; The cutting edge material that earlier cutting die is used uses the mode of laser weld to be bumped in the five metals template, re-uses the manufacturing process such as silk, curve mill, minute surface spark of being careful, and template is processed into the structure that the five metals mould is promptly arranged has the mixed structure of cutting die characteristic again; So promptly have the stability of five metals mould, again the keen edge of cutting die arranged; Reduce blanking pressure with this, can overcome excessive glue, draw glue and weigh circuit wounded, can obtain stable size again.

3, the binder mode makes cylinder 1 binder into from traditional spring binder:

The traditional moulds technology is used the binder mode of spring; Because pressure is non-adjustable, weighs circuit easily wounded, the utility model adopts cylinder 1 binder mode; Make adjustable in pressure, weigh circuit because of pressure is excessive wounded or can't reach problems such as binder effect because of pressure is too small thereby overcome.

The emphasis of the utility model just is: cut off die and be provided with the inclination cutting edge.

The above; Be merely the utility model preferred embodiment; So can not limit the scope that the utility model is implemented with this, the equivalence of promptly doing according to the utility model claim and description changes and modifies, and all should still belong in the scope that the utility model patent contains.

Claims

1. working of plastics punching press knife edge die is characterized in that: it comprises cylinder, goes up baffle plate, patrix, cut-out die, holding pad, stripper plate, takes off the material spring, drift, counterdie, baffle plate down; Described cylinder block is installed in the patrix plate outer side, the fixing baffle plate inboard of going up of patrix; Described cut-out die one end is fixed on the baffle plate inboard and is nested with in patrix, cuts off the oblique inside formation cutting edge in die other end surface, and cutting edge is inclination; Described holding pad activity is nested with in cutting off die; Described cylinder piston rod passes the patrix base top and is pressed on the holding pad; Described stripper plate gap is socketed on the drift, between stripper plate and following baffle plate, is provided with and takes off the material spring, and counterdie is fixed on down on the baffle plate.

2. working of plastics punching press knife edge die according to claim 1 is characterized in that: described cylinder piston rod passes the patrix base top through connecting rod and is pressed on the holding pad.