CN201543720U - Hot-press forming mould of thickness elbow tube fitting - Google Patents

Abstract

The utility model relates to a hot-press forming mould of a thickness elbow tube fitting. The mould comprises an upper mould and a lower mould, wherein the outer wall at a projecting part of the upper mould is correspondingly coincided with the outer wall of the lower mould, a corresponding concave abdication matched with the projecting part of the upper mould is arranged on the lower mould, and parting surfaces of the upper mould and the lower mould are positioned at a bent centre line of an elbow tube fitting. The hot-press forming mould of the thickness elbow tube fitting solves the problem that the knife edge of the upper mould is easy to deform and prematurely crack, and can effectively and smoothly form the thickness elbow tube fitting in a hot-press manner.

Description

The heat pressing and molding mold of thick-wall elbow pipe fitting

Technical field

The utility model relates to the heat pressing and molding mold of pipe fitting production equipment field, especially bend pipe tools.

Background technology

Pipe fitting is the connector of pipeline.The thick-wall elbow pipe fitting refers to the bend pipe tools product of wall thickness more than 16mm, generally come moulding with the technology of hot pressing die moulding, carry out the pipe blanking according to the pipe fitting size, then pipe is heated the regular hour in electric furnace under uniform temperature, then pipe is placed progressive die tool counterdie, as shown in Figure 1, ship shape inner core 4 and two port plugs 2 are put into pipe, upper mould 1 begins down, and matched moulds is pressed, take out bend pipe tools 3 after the moulding, take out plug 2 and ship shape inner core 4 in the bend pipe tools 3 at last.Mould is crucial molding equipment in this process, and the quality of mould design plays a decisive role to bend pipe tools Forming Quality and efficient.Present mould structure, as shown in Figure 2, the both sides edge of a knife 6 of the lower end part of patrix 1 is the thinnest only 1mm, in forming process, mold notch 6 is subjected to the effect of material extrusion stress and thermal stress, is very easy to distortion, and often burst apart very early, not only influence the bend pipe tools Forming Quality, and shortened die life greatly, reduced production efficiency.

The utility model content

The applicant is at these shortcomings in the above-mentioned existing production, and a kind of heat pressing and molding mold of reasonable in design, thick-wall elbow pipe fitting that service life is higher is provided.

The technical scheme that the utility model adopted is as follows:

A kind of heat pressing and molding mold of thick-wall elbow pipe fitting, comprise patrix and counterdie, patrix protuberance outer wall is corresponding identical with the outer wall of counterdie, and counterdie is provided with corresponding recess in patrix protuberance cooperation place and steps down, and the die joint of patrix and counterdie is positioned at the flexural center line position of bend pipe tools.

The utility model has solved the problem that the patrix edge of a knife in the heat pressing and molding mold of thick-wall elbow pipe fitting is yielding and burst apart too early, and using the utility model can efficiently hot-forming smoothly thick-wall elbow pipe fitting.

Description of drawings

Fig. 1 is the schematic diagram of existing bend pipe tools heat pressing and molding mold;

Fig. 2 is the patrix right view of existing bend pipe tools heat pressing and molding mold;

Fig. 3 is a stereogram of the present utility model;

Fig. 4 is a patrix right view of the present utility model;

Fig. 5 is the front view of the utility model under the matched moulds state.

The specific embodiment

Below in conjunction with accompanying drawing, the specific embodiment of the present utility model is described.

As shown in Figure 3, Figure 4, the heat pressing and molding mold of thick-wall elbow pipe fitting described in the utility model comprises patrix 7 and counterdie 11.Thickeied the thickness of protuberance 8 in the both sides of the lower end part of patrix 7, in specific embodiment, can increase to 100mm, made corresponding the coincideing of outer wall of protuberance outer wall and counterdie 11; Cause the also corresponding increase of counterdie 11 wall thickness in order not make because of patrix protuberance 8 thickness increase, the local outstanding counterdie 11 that inserts in the middle of patrix 7 has only, corresponding recess 10 is arranged as stepping down on counterdie 11, as shown in Figure 5, die joint 9 is positioned at the flexural center line position of bend pipe tools.Adopt the utility model to carry out the hot-forming of thick-wall elbow pipe fitting, owing to thickeied the thickness of protuberance 8, therefore improved the intensity of protuberance greatly, not yielding aborning with burst apart, not only improve the bend pipe tools Forming Quality, and improved die life and production efficiency greatly.

More than describing is to explanation of the present utility model, is not the qualification to utility model, and the utility model institute restricted portion is referring to claim, and under the situation of spirit of the present utility model, the utility model can be done any type of modification.

Claims (1)

1. the heat pressing and molding mold of a thick-wall elbow pipe fitting, comprise patrix and counterdie, it is characterized in that: patrix protuberance outer wall is corresponding identical with the outer wall of counterdie, counterdie is provided with corresponding recess in patrix protuberance cooperation place and steps down, and the die joint of patrix and counterdie is positioned at the flexural center line position of bend pipe tools.

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