High-efficiency cooling coarse powder drawing stainless steel wire drawing die

Abstract

The invention relates to a high-efficiency cooling roughed powder drawing stainless steel wire drawing die. The die comprises a die box (2), wherein the die box (2) is of a hollow box-shaped structure; a die holder (3) penetrates through the left and right box walls of the die box (2); a die sleeve (4) is embedded into the die holder (3); a drawing die (6) is arranged in the die sleeve (4); and a water inlet and a water outlet are formed in the bottom of the die box (2). The high-efficiency cooling roughed powder drawing stainless steel wiredrawing die disclosed by the invention has the characteristics of good cooling effect and excellent drawing effect.

Description

technical field [0001] The invention relates to a drawing die, in particular to a stainless steel wire drawing die, in particular to a high-efficiency cooling coarse powder drawing stainless steel wire drawing die, which belongs to the technical field of supporting equipment for stainless steel wire production. Background technique [0002] At present, in the field of stainless steel wire processing, the die set of the drawing die used in the rough powder drawing is a two-half conical combined die set ( image 3 Part 11) in the actual use process, it is found that because the mold set has a two-half structure, not only it is easy to cause the lubricant powder to leak and affect the quality of the wire, but also the two pieces of the mold set are easy to be dislocated due to the shaking of the wire, which is not conducive to the product. At the same time, because the mold sleeve is tapered, the wire rod will retreat after the drawing line is shut down, which will increase the ...

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Problems solved by technology

[0002] At present, in the field of stainless steel wire processing, the die set of the drawing die used in the rough powder drawing is a two-half conical combined die set ( image 3 Part 11) in the actual use process, it is found that because the mold set has a two-half structure, not only it is easy to cause the lubricant powder to leak and affect the quality of the wire, but also the two pieces of the mold set are easy to be dislocated due to the shaking of the wire, which is not conducive to the product. At the same time, because the mold sleeve is tapered, the wire rod will retreat after the drawing line is shut down, which will increase the number of wire coils at the wire take-up point, which is not conducive to the packaging of the wire rod; in addition, with this The mold box used in conjunction with the mold set is a solid mold box ( Figure 4 Part 12 of the above), the cooling system used is only a channel around the mold sleeve opened in the mold box body, and the cooling water is injected into the channel through the water inlet, and then the cooling water flows out of the water outlet to achieve the cooling effect ; This cooling method not only has a limited cooling effect, but also increases the loss of the drawing die, and it is difficult to guarantee the mechanical properties of the wire. At the same time, it is very easy to form scale in the cooling channel and block the channel. clean up the channel;

[0003] For this reason, Chinese patent ZL201220482308.0 discloses "a mold box with cooling function", which includes a mold box body, which is provided with a lubricating groove for placing lubricating powder or lubricating oil and for placing The cooling tank with circulating cooling water, the drawing die installed in the cooling tank is immersed in the circulating cooling water in the cooling tank; however, the installation of the die is complicated, and the drawing die is connected to the mold box body through the die seat, the connection method The isolation between the mold and the cooling water cannot be achieved, and in actual use, water leakage is prone to occur, which in turn affects the drawing effect

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