CN2194225Y

CN2194225Y - Kickback type air inflation die

Info

Publication number: CN2194225Y
Application number: CN 94228525
Authority: CN
Inventors: 张德荣
Original assignee: Individual
Current assignee: Individual
Priority date: 1994-05-10
Filing date: 1994-05-10
Publication date: 1995-04-12
Anticipated expiration: 2004-05-10

Abstract

The utility model provides a kick sheet-metal ganging and billow forming die, and has the essential technical proposal that the utility model is composed of an upper die and a lower die set, wherein, the lower die is composed of a female die, a backing board and a lower die sleeve; each of the upper die and the lower die sleeve is provided with an air passage whose one end is the outside and the other end opens to the female die; the upper die and the lower die are provided with heating elements and are positioned by guide posts arranged according to the diagonal line; a plurality of female dies are combined together and arranged on the backing board; the backing board is arranged on the lower die; each female die is provided with air holes. The utility model has the advantages that large-area sheet materials can be formed by ganging, and the production efficiency is higher than singly billow forming.

Description

Kickback type air inflation die

The utility model relates to a kind of mould, and particularly a kind of panel beating is the gas expansion forming mould in groups.

Gas expansion forming is applied to plastic and glass goods industry already, is applied to the hot forming of sheet metal component afterwards again.Existing panel beating gas expansion forming mould generally only is used for single-piece and is shaped, and its production efficiency and stock utilization are not high, and energy resource consumption is also very big.The way of dealing with problems is to adopt gas bulging forming process (die that is about to several parts is combined once-forming) in groups.But ready-made mould structure is difficult to satisfy the technological requirement that the large tracts of land plate is formed shape.Complex-shaped gas expansion forming spare, the back material that is shaped is too soft, and pickup is difficulty quite, usually produces the distortion that is difficult to repair.This problem is particularly outstanding for the large-area part that expands in groups.On the other hand, airtight for large-area drip molding for guaranteeing, need with the big hydraulic press of work top usually.This just needs bigger investment, and power consumption is also quite high.

The purpose of this utility model is: a kind of backpulsing panel beating gas expansion forming mould in groups is provided, and it can realize panel beating once-forming in groups.

The purpose of this utility model is achieved in that it is made up of upper die and lower die, counterdie is made up of die, backing plate and lower die-sleeve, and patrix has air flue, and counterdie is with the back flushing air road, one end of these two air flues is logical extraneous, the other end leads to the die cavity between the upper die and lower die cover, in the upper die and lower die cover heating element heater is arranged, and the location of patrix and counterdie is by pressing the guide pillar that diagonal is arranged, several dies are combined, be placed on the backing plate, backing plate is placed on lower die-sleeve, on each die pore is arranged.

The course of work is:

1, to the heating energising, make temperature be raised to forming temperature;

2, by the air flue aerating of patrix, exert pressure to plate by calculating good pressure-time curve, make sheet deformation, at this moment, gas is discharged from the air flue of counterdie;

3, after plate all pastes mould, stop aerating;

4, opening mold is with heated plate with rise to specified altitude assignment;

5, master cock makes gas enter counterdie by the air flue of counterdie, and backing plate, die and workpiece are repeatedly recoiled, and by certain operation, makes them produce amplitude and all differentiated mutually up-down vibration in position, makes the demoulding of workpiece each several part.

The utility model compared with prior art, the advantage that has is:

1, it can realize that large-area plate carries out gas expansion forming in groups, and production efficiency is more much higher than single-piece inflatable.

2, structurally satisfied the technological requirement of gas towards the differential demoulding, make the demoulding simple and efficient, finishing process amount and waste product have been significantly reduced, after adopting the utility model, many kinds of materials can be substantially without releasing agent, this has not only reduced the cleaning amount, to improving the quality of surface of the work, also is of great benefit to.

3, the die piece is abandoned prescription just, flexibly.

4, do not need hydraulic press.

Further specify the utility model below in conjunction with accompanying drawing.

Accompanying drawing is a structural representation of the present utility model, and wherein left-half is the state before the sheet forming, and right half part is the state behind the sheet forming.

It is made up of patrix 6 and counterdie, counterdie is by die 5, backing plate 15 and lower die-sleeve 13 are formed, at patrix air flue 2 is arranged, recoil air flue 1 is arranged on lower die-sleeve, one end of these two air flues is logical extraneous, the other end leads to the die cavity between the upper die and lower die cover, the counterdie middle part is a rectangle, lateral aperture 12 is arranged in it, hole in-built electrical thermal element, counterdie has some groups of auricles 10 around the bottom, porose on the auricle, being connected with eyelet bolt 9 by screw 11, is heated plate 3 in the outer end of patrix, and the location of heated plate and counterdie is by totally two of the guide pillar 4(that press diagonal and arrange), leave with gap between several dies and combine, between die and backing plate, the stop screw 16 of control amplitude is arranged, backing plate is placed on lower die-sleeve.Pore 7 is arranged on each die, and screw 16 can be limited the last jumping amount of die.The 8th, nut, when temperature was raised to forming temperature, fastening nut 8 kept airtight.The 14th, workpiece.The course of work is no longer repeated as previously mentioned.

Claims

1, a kind of differential type panel beating is the gas expansion forming mould in groups, it is made up of upper die and lower die, putting at upper die and lower die respectively has a heating element heater, air flue is arranged in patrix, one end of this air flue is extraneous, the other end leads to the die cavity between the upper die and lower die cover, the location of patrix and counterdie is by pressing the guide pillar that diagonal is arranged, feature of the present utility model is: counterdie is by die, backing plate and lower die-sleeve are formed, and the recoil air flue is arranged in lower die-sleeve, one end of this air flue is extraneous, the other end leads to the die cavity between the upper die and lower die cover, and several dies are combined, and are placed on the backing plate, backing plate is placed on lower die-sleeve, on each die pore is arranged.

2, according to the described mould of claim 1, it is characterized in that: leave with gap between several dies and combine, the stop screw 16 of control amplitude is arranged between die and backing plate.