CN203389966U - High-stability wire-drawing die - Google Patents

Abstract

The utility model discloses a high-stability wire-drawing die, comprising a wire-drawing die sleeve (1) and a wire-drawing die core (2), wherein two ends of the bottom of the wire-drawing die sleeve extend towards the center of the wire-drawing die sleeve, so as to form a lug boss (3) capable of preventing the wire-drawing die core from moving. The high-stability wire-drawing die has the beneficial effects that the wire-drawing die core is limited by arranging the lug boss for preventing the wire-drawing die core from moving at the bottom of the wire-drawing die sleeve; the condition that the wire-drawing die does not sway in a drawing process is ensured; the contact area of the wire-drawing die core and the wire-drawing die sleeve is increased by a trapezoid section of the wire-drawing die core; the binding force of the wire-drawing die core and the wire-drawing die sleeve is enhanced.

Description

High stability wire-drawing die

Technical field

The utility model relates to wire-drawing die, relates in particular to high stability wire-drawing die.

Background technology

In stress metal processing. make under external force metal pass through by force mould, metal cross section is long-pending compressed, and the instrument that obtains desired cross-sectional area shape and size is called wire drawing die, wire-drawing die is that wire passes through a kind of mould, make it from coarse to fine, progressively reach the needed size of people, this special mould is exactly wire drawing die, the core rod of wire drawing die is generally with rough diamond, (rhinestone has GE to rhinestone, PCD, synthesis material etc.), wire drawing die is of many uses, as electronic device, radar, TV, the high accuracy silk material that instrument and space flight etc. are used and conventional tungsten filament, molybdenum filament, stainless steel wire, electric wire silk and various B alloy wire all draw out with dimaond die, dimaond die is owing to adopting natural diamond to make raw material, thereby there is extremely strong wearability, service life is high.The production technology of wire drawing die edge cover, comprises several processing steps such as pressing mold, withdrawing pattern, turning.The core rod of traditional wire drawing die is cylindrical, the internal diameter of wire drawing die cover is suitable is with it also columniform through hole, adopt interference fit that both are combined, if the strength of drawing is crossed conference, wire-drawing mold core is rocked with respect to wire drawing die cover, affect drawing quality.

Utility model content

The technical problems to be solved in the utility model be in existing wire-drawing die wire drawing die cover and wire-drawing mold core bond strength inadequate, in use wire-drawing mold core has wild effect, on drawing mass formation impact, provides a kind of high stability wire-drawing die for this reason.

The technical solution of the utility model is: high stability wire-drawing die, and it comprises wire drawing die cover and wire-drawing mold core, two ends, described wire drawing die cover bottom are extended with the boss that can stop described wire-drawing mold core to move to wire drawing die cover center.

The longitudinal section of wire-drawing mold core described in such scheme is trapezoidal.

The beneficial effects of the utility model are to limit wire-drawing mold core by being provided with in wire drawing die cover bottom the boss that stops wire-drawing mold core to move, guarantee in drawing process that wire-drawing die is without rocking, the trapezoid cross section of wire-drawing mold core increases wire-drawing mold core and wire drawing die cover contact area, has strengthened both adhesions.

Accompanying drawing explanation

Fig. 1 is the utility model schematic diagram;

In figure, 1, wire drawing die cover, 2, wire-drawing mold core, 3, boss.

The specific embodiment

Below in conjunction with accompanying drawing, the utility model is described further.

As shown in Figure 1, the utility model comprises wire drawing die cover 1 and wire-drawing mold core 2, it is up-narrow and down-wide trapezoidal that the longitudinal section of wire-drawing mold core is, there is the spatial accommodation suitable with its shape wire drawing die cover inside, wire drawing die cover bottom is provided with the boss 3 extending to wire drawing die cover center, contacts bottom boss and wire-drawing mold core can limit wire-drawing mold core and pull out from the bottom of wire drawing die cover.

It is wide at the top and narrow at the bottom trapezoidal that preference of the present utility model is that the longitudinal section of wire-drawing mold core is, there is the spatial accommodation suitable with its shape wire drawing die cover inside, wire-drawing mold core can more draw be combined with wire drawing die cover tighter in the process of drawing like this, and wire drawing die cover bottom is provided with the boss extending to wire drawing die cover center.

The shape of boss does not limit, and can be that cross section is rectangular, circular, the structure of triangle etc., as long as can stop wire-drawing mold core to move down.

The importer who refers to wire-drawing die on described in the utility model to, under refer to the Way out of wire-drawing die.

By reference to the accompanying drawings the utility model is exemplarily described above; obviously the utility model specific implementation is not subject to the restrictions described above; as long as adopted the improvement of the various unsubstantialities that method of the present utility model design and technical scheme carry out; or without improving, design of the present utility model and technical scheme are directly applied to other occasion, all within protection domain of the present utility model.

Claims (2)

1. high stability wire-drawing die, it comprises wire drawing die cover (1) and wire-drawing mold core (2), it is characterized in that two ends, described wire drawing die cover bottom are extended with the boss (3) that can stop described wire-drawing mold core to move to wire drawing die cover center.

2. high stability wire-drawing die as claimed in claim 1, is characterized in that described wire-drawing mold core longitudinal section is trapezoidal.

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