Pressure nano-coating wire-drawing die

Abstract

The utility model relates to the technical field of wire-drawing dies, and discloses a pressure nano coating wire-drawing die, which comprises a die sleeve and a die core arranged in the die sleeve, the die sleeve is an integrated die sleeve, a die cavity for assembling the die core and a steel wire is arranged in the die sleeve, and a pressure die core is arranged at the front end of the die core. The device is reasonable in structure and simple in mechanism, can quickly improve the production efficiency of wire drawing production during use, prolongs the service life, and greatly reduces the production cost. According to the device, a connecting area is arranged between the pressure mold core and the mold core, pressure is formed in the connecting area and high temperature is generated in the wire drawing operation, the adhesion amount of a wire drawing powder lubricant is increased, and the lubricity of a steel wire and a nano coating is improved. The pressure mold core is arranged at the front end of the mold core, compared with an original device, the manufacturing cost of the device is increased by 15%, the service life is prolonged by more than 10 times, and the product quality and the yield stability can be improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to a wire drawing die field, in particular to a pressure nanometer coating wire drawing die. BACKGROUND

[0002] The ordinary nanometer coating wire drawing die is often used in the drawing production of various carbon steels, stainless steels and the like, for the drawing of high-carbon steel wires, with the increase of the area reduction ratio in the wire drawing process, the tensile strength of the steel wire is continuously increased, the overall hardness is sharply increased and the drawing speed is increased, the friction between the steel wire base material and the nanometer coating wire drawing die is increased, the heat energy generated by the deformation of the steel wire is increased, and the amount of the nanometer coating wire drawing die inlet of the wire drawing lubricating powder is relatively reduced due to the reduction of the wire diameter, thereby causing the gradual recession of the nanometer coating die, and finally damaging the nanometer coating die. Since the price of the nanometer coating die itself is about 5-8 times that of the ordinary tungsten steel die, the service life is about 10-15 times that of the ordinary tungsten steel die, and the ordinary tungsten steel die can be repeatedly modified for 5-8 times, so the nanometer coating die can only improve the production efficiency, and the overall unit consumption is not as good as that of the ordinary tungsten steel die. Limited by the above conditions, the ordinary nanometer coating wire drawing die is not strong in application in the production of high-carbon steel wires.

[0003] The patent application with publication number CN210098549U discloses a steel wire drawing pressure die and relates to a die for steel wire drawing. The die comprises a die sleeve, a die core is installed in the inner cavity of the die sleeve, the die core has an inner cavity extending axially through the entire die core, a partition plate is arranged in the middle of the die core inner cavity, the middle of the partition plate is provided with a hole for the steel wire to pass through, the diameter of the hole is 1-2 mm larger than the diameter of the steel wire, the inner cavity of the die core in front of the partition plate is a pressure lubrication area, the area is provided with lubricating powder, the inner cavity of the die core behind the partition plate is a drawing area, the drawing area is provided with a steel wire passage for the steel wire to pass through, and the steel wire passage and the hole of the partition plate are on the same straight line.

[0004] When the prior art structure is used, the inner side of the die core is worn to a high degree due to the continuous increase of the tensile strength of the steel wire during the wire drawing process, the service life of the device is short, and the cost is high.

[0005] Therefore, a new technical scheme is needed to solve the above technical problems. UTILITY MODEL CONTENTS

[0006] The utility model aims at providing a pressure nanometer coating wire drawing die, which has a reasonable structure, adopts a simple mechanism, quickly improves the production efficiency of wire drawing production and prolongs the service life, and greatly reduces the production cost.

[0007] The utility model adopts the technical scheme that:

[0008] A pressure nanometer coating wire drawing die, comprising a die sleeve and a die core installed in the die sleeve, the die sleeve is a one-piece die sleeve, the inside is a die cavity for assembling the die core, and the front end of the die core is provided with a pressure die core.

[0009] By adopting the above structure, the device structure is reasonable, the mechanism is simple, the production efficiency of wire drawing production can be quickly improved during use, the service life is prolonged, and the production cost is greatly reduced.

[0010] Preferably, the inner side wall of the die core is coated with a nano coating.

[0011] By adopting the above structure, the pressure die core is provided in front of the die core, and the pressure between the die core and the pressure die core can be formed and high temperature can be generated during the wire drawing operation, so that the wire drawing powder is uniformly attached to the surface of the steel wire and the lubricating effect of the wire drawing powder is strengthened.

[0012] Preferably, the inner diameter of the pressure die core gradually decreases from the wire inlet to the wire outlet, and the inner diameter of the die core gradually decreases from the wire inlet to the wire outlet.

[0013] By adopting the above structure, the wire drawing operation of the steel wire between the die core and the pressure die core is facilitated.

[0014] Preferably, the inner diameter length of the wire outlet end of the pressure die core is greater than the inner diameter length of the wire outlet end of the die core.

[0015] Preferably, the outer diameter length of the pressure die core is the same as the outer diameter length of the die core.

[0016] Preferably, the inner diameter length of the wire inlet of the die core is smaller than the inner diameter length of the wire outlet end of the pressure die core.

[0017] By adopting the above structure, the wire drawing operation of the steel wire between the die core and the pressure die core is facilitated, the wire drawing production speed can be improved, and the production efficiency can be improved.

[0018] Preferably, the connection area between the tail wire outlet end of the pressure die core and the die core is a lubricating and pressurizing area.

[0019] By adopting the above structure, the wire drawing powder is uniformly attached to the surface of the steel wire, and the lubricating effect of the wire drawing powder is strengthened.

[0020] Preferably, the wire outlet end of the die core is provided with a rear end limiting part, and the rear end limiting part is arranged in close contact with the die core.

[0021] Compared with the prior art, the utility model has the following beneficial effects:

[0022] 1. The device structure is reasonable, the mechanism is simple, the production efficiency of wire drawing production can be quickly improved during use, the service life is prolonged, and the production cost is greatly reduced.

[0023] 2. The device is provided with a connection area between the pressure die core and the die core, the connection area forms pressure and generates high temperature during the wire drawing operation, the adhesion amount of the wire drawing powder lubricant is improved, and the lubricity of the steel wire and the nano coating is increased.

[0024] 3、 The device of the utility model sets up pressure mould core in front end of mould core, device cost increases 15% than original device, but service life promotes more than 10 times, and can improve product quality and stability of output. BRIEF DESCRIPTION OF DRAWINGS

[0025] Figure 1 It is structure schematic view of the utility model;

[0026] Figure 2 It is schematic diagram of deformation state of steel wire in the drawing die of the utility model;

[0027] Figure 3 It is position structure schematic view of pressure mould core and mould core of the utility model;

[0028] Figure 4 It is structure schematic view of pressure mould core of the utility model.

[0029] Among them: 1, mould cover;2, pressure mould core;3, mould core;4, nanometer coating;5, steel wire;6, rear end limiting portion;7, connecting area;8, drawing powder. DETAILED DESCRIPTION

[0030] As shown in Figures 1-4 A pressure nanometer coating drawing die, including mould cover 1 and the mould core 3 installed in mould cover 1, the mould cover 1 is integrated mould cover, inside is the mould cavity of assembly mould core 3, the mould core 3 front end is equipped with pressure mould core 2. The outgoing line end of mould cover 1 is equipped with rear end limiting portion 6, and the rear end limiting portion 6 is attached with mould core 3. The device structure is reasonable, and the mechanism is simple, and the production efficiency of drawing production can be quickly improved when using, and the service life is prolonged, and the production cost is greatly reduced. The device sets up pressure mould core 2 in front end of mould core 3, and the cost of the device increases by 15% than the original device, but the service life is more than 10 times, and the stability of product quality and output can be improved.

[0031] The pressure mould core 2 is in mould cover 1 close to incoming line end, and the mould core 3 is between the pressure mould core 2 and the outgoing line end of mould cover 1, the inner side wall of mould core 3 is coated with nanometer coating 4. The inner diameter of pressure mould core 2 gradually decreases from incoming line port to outgoing line end, and the inner diameter of mould core 2 gradually decreases from incoming line port to outgoing line end. The inner diameter length of the outgoing line end of pressure mould core 2 is greater than the inner diameter length of the outgoing line end of mould core 3. The outer diameter length of pressure mould core 2 is consistent with the outer diameter length of mould core 3. The inner diameter length of the incoming line port of mould core 3 is less than the inner diameter length of the outgoing line end of pressure mould core 2. The connecting area 7 of the tail outgoing line end of pressure mould core 2 and mould core 3 is lubricating supercharging area. In the connecting area 7 between pressure mould core 2 and mould core 3, the connecting area forms pressure and generates high temperature in drawing operation, improves the adhesion amount of drawing powder lubricant, and increases the lubricity of steel wire and nanometer coating.

[0032] When the device is used, the drawing powder 8 is attached to the surface of the steel wire 5 and is brought into the pressure die core 2, and is reduced in size through the hole of the inner diameter D3 of the pressure die core 2, and is continuously increased in the pressure die core 2 and the die core 3, and forms pressure and generates high temperature in the connecting area 7, and the drawing powder 8 is more uniformly attached to the surface of the steel wire, and the lubricating capacity of the drawing powder 8 is improved, and the steel wire enters the die core 3 to deform, and the whole drawing is completed. Due to the high attachment amount of the drawing powder lubricant, the lubricity of the steel wire and the nano coating is increased, so that the production speed of the steel wire is improved and the service life of the die is prolonged.

[0033] The above-described embodiments are merely preferred embodiments of the utility model, and do not limit the scope of the utility model, and various deformations and improvements of the technical scheme of the utility model made by the person skilled in the art without departing from the design spirit of the utility model should be included in the protection scope determined by the claim of the utility model.

Claims

1. A pressure nano-coated wire drawing die comprising a die sleeve and a die core mounted within the die sleeve, characterized in that: The mold sleeve is an integrated mold sleeve, and an internal mold cavity is assembled with a mold core; a front end of the mold core is provided with a pressure mold core; the mold sleeve is provided with the pressure mold core near an incoming line end; and a mold core is arranged between the pressure mold core and an outgoing line end of the mold sleeve.

2. A pressure nano-coated wire drawing die according to claim 1, characterized in that: An inner diameter length of the pressure mold core is consistent with an outer diameter length of the mold core.

3. A pressure nano-coated wire drawing die according to claim 1, characterized in that: An inner diameter length of the incoming line end of the mold core is smaller than an inner diameter length of the outgoing line end of the pressure mold core.

4. The pressure nano-coated wire drawing die according to claim 1, characterized in that: A connection area between the outgoing line end of the pressure mold core and the mold core is a lubricating and pressurizing area.

5. The pressure nano-coated wire drawing die according to claim 1, characterized in that: The outgoing line end of the mold sleeve is provided with a rear end limiting part, and the rear end limiting part is arranged in close contact with the mold core.

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