CN104889252A - Stretching mould - Google Patents

Abstract

The invention relates to a stretching mould. The stretching mould is characterized by comprising an upper die part and a lower die part; the upper die part includes an upper die base, an upper cushion plate, an upper splint, a pressure plate, and an ejector rod, and others; the lower die part comprises a lower die base, a lower cushion plate, a lower template, a blanking punch, a top rod, and others; the ejector rod is fixed on the upper die base, and the upper die base is fixed to the upper splint by crossing through the upper cushion plate by means of a screw; a stretching concave die is fixed on the upper cushion plate by crossing through the upper splint, a straight rod type convex die is fixed with the ejector rod, and arranged in the stretching concave die; the pressure plate is connected to the upper splint, and the lower die base is fixed with the lower cushion plate together; the stretching convex die is fixed on the lower die base, and the lower die plate is fixed on the lower die base through the screw; the lower template is provided with a hole, the blanking punch is arranged in the lower template hole, and the top rod props the bottom part of the blanking punch. By adopting a unique design, the stretching mould is good in self-lubricating property, high in hardness and small in frictional coefficient; meanwhile, the material mobility is good, and the product is free from scratch; besides, the mould service life is improved, and the mould is not easy to deform.

Description

A kind of drawing die

Technical field

The present invention relates to a kind of drawing die.

Background technology

Drawing die is that modern product system field of fitting widely uses-kind of mould, and usually combined by the concave-convex mold coordinated up and down and form, each concave-convex mold has a die holder separately, and die holder is provided with shaping template.Under normal circumstances, if when the outer shape of raw product is rounder and more smooth, template surface is also round and smooth, and now, die surface can not exist cutting edge portion, and the life-span of mould generally also can be long.But during reality uses; the outer shape of most products is not very round and smooth; therefore; for its template surface designed also can not be very round and smooth; often there is cutting edge portion, these cutting edge portion can cause damage to mould usually, shorten the life-span of mould; also can affect the mobility of material simultaneously, make product produce scratch.

Summary of the invention

For problems of the prior art, the object of the present invention is to provide a kind of technical scheme of drawing die.

Described a kind of drawing die, it is characterized in that comprising part of the upper die and part of the lower die, part of the upper die comprises upper bolster, upper padding plate, train wheel bridge, holding pad, knock-pin etc., part of the lower die comprises die shoe, lower bolster, lower bolster, blanking die, push rod etc., knock-pin is fixed on upper bolster, upper bolster is fixed to train wheel bridge by screw through upper padding plate, stretching die fixes on upper padding plate seven through train wheel bridge is same, straight rod type punch and knock-pin are fixed, straight rod type punch is located in stretching die, holding pad is connected to train wheel bridge, die shoe and lower bolster are fixed together, stretching convex die is fixed on die shoe, lower bolster is fixed on die shoe by screw, lower bolster is provided with hole, blanking die is located in counterdie plate hole, push rod withstands bottom blanking die.

Described a kind of drawing die, is characterized in that described upper bolster is connected location with die shoe by guide pillar.

Drawing die of the present invention, structure is relatively simple, reasonable in design, adopts unique design, such that self-lubricity of the present invention is good, hardness is high, coefficient of friction is little, simultaneously good, the product of material flowability can not produce scratch, and improve mould life-span, make it not yielding.

Accompanying drawing explanation

Fig. 1 is structural representation of the present invention.

Detailed description of the invention

Below in conjunction with Figure of description, the present invention will be further described:

The structure of drawing die of the present invention is as shown in Fig. 1, comprise part of the upper die and part of the lower die, part of the upper die comprises clay model seat 1, upper padding plate 3, train wheel bridge 5, holding pad 9, knock-pin 12 etc., and part of the lower die comprises die shoe 2, lower bolster 4, lower bolster 10, blanking die 11, push rod 14 etc.Knock-pin 12 is fixed on upper bolster l, upper bolster 1 is fixed to train wheel bridge 5 by screw through upper padding plate 3, stretching die 7 is fixed on upper padding plate 3 through train wheel bridge 5, straight rod type punch 8 and knock-pin 12 are fixed, straight rod type punch 8 is located in stretching die 7, straight rod type punch 8 can move up and down in stretching die 7 inside, holding pad 9 is connected to train wheel bridge 3, together with die shoe 2 fixes on lower bolster 4 state, stretching convex die 6 is fixed on die shoe 2, lower bolster 10 is fixed on die shoe 2 by screw, lower bolster 10 is provided with hole, fence material drift 11 is established in sub-lower bolster 10 hole, lower bolster 10 is provided with free gap, die opening state, blanking die 11 flushes with lower bolster 10, push rod 14 withstands bottom blanking die 11, operationally, push rod 14 is for jack-up blanking, middle 11, upper bolster l is connected location with die shoe 2 by the property led 13.

Claims (2)

1. a drawing die, it is characterized in that comprising part of the upper die and part of the lower die, part of the upper die comprises upper bolster, upper padding plate, train wheel bridge, holding pad, knock-pin etc., part of the lower die comprises die shoe, lower bolster, lower bolster, blanking die, push rod etc., knock-pin is fixed on upper bolster, upper bolster is fixed to train wheel bridge by screw through upper padding plate, stretching die fixes on upper padding plate seven through train wheel bridge is same, straight rod type punch and knock-pin are fixed, straight rod type punch is located in stretching die, holding pad is connected to train wheel bridge, die shoe and lower bolster are fixed together, stretching convex die is fixed on die shoe, lower bolster is fixed on die shoe by screw, lower bolster is provided with hole, blanking die is located in counterdie plate hole, push rod withstands bottom blanking die.

2. a kind of drawing die according to claim 1, is characterized in that described upper bolster is connected location with die shoe by guide pillar.