Aluminum-coated steel wire drawing die

Abstract

The utility model belongs to the technical field of wire drawing tools, and particularly relates to an aluminum-coated steel wire drawing die which comprises a die body, and the die body comprises a pressure die and a working die. An inlet groove is formed in the inlet end of the pressure mold, the pressure mold comprises a pressure mold sleeve and a pressure mold core, the pressure mold core is arranged in the first mounting groove, and a high-temperature-resistant gasket is arranged between the interior of the first mounting groove and the pressure mold core; the working die is arranged at the outlet end of the pressure die, an outlet groove is formed in the outlet end of the pressure die, the working die comprises a working die sleeve and a working die core, and the working die core is arranged in the second mounting groove; a groove is formed in the front end of an inlet of the working die sleeve; a clamping block is arranged at the rear end of an outlet of the pressure die sleeve; the wire drawing die adopts a dual-die structure, so that the working die and the pressure die have good concentricity, and radial force is transferred to the die sleeve from the die core, so that the drawing pressure on the pressure die core and the working die core can be reduced, the demolding phenomenon is avoided, and the service life of the wire drawing die can be effectively prolonged.

Description

Technical Field

[0001] The utility model belongs to the technical field of wire drawing tools, and particularly relates to an aluminum-clad steel wire drawing die. Background Technique

[0002] A wire drawing die is an important tool in the process of metal wire processing. Its main function is to force the metal wire to pass through the die hole under external force, so that the cross-sectional area of the metal wire is compressed and deformed to the expected diameter or shape.

[0003] The existing aluminum-clad steel wire drawing die is composed of two parts. One is a pressure die without a die core and in a conical shape, which has a through hole from the front end to the rear end, so that a large amount of lubricating powder can be injected into the die interior, playing a role in lubricating the aluminum-clad steel wire before wire drawing and reducing the friction between the aluminum-clad steel wire and the inner hole of the die. The other is a working die that needs to be inlaid with a die core. A die core needs to be inlaid. The through hole of the pressure die is directly connected to the die core, and the conical head of the pressure die is connected to the inlet of the working die, which requires a huge pressure. At this time, the die core bears it, which will cause great damage to the working die core and may lead to phenomena such as demoulding. Content of the Utility Model

[0004] Aiming at the above deficiencies of the prior art, the utility model provides an aluminum-clad steel wire drawing die, which solves the problems that the existing wire drawing die is not conducive to disassembling the pressure die core, and the pressure between the pressure die and the working die is large, which causes great damage to the working die core and further leads to problems such as demoulding.

[0005] To achieve the above object, the technical solution adopted by the utility model is: to provide an aluminum-clad steel wire drawing die, including a die body, and the die body includes a pressure die and a working die;

[0006] An inlet groove is arranged at the inlet end of the pressure die. The pressure die includes a pressure die sleeve and a pressure die core arranged in the pressure die sleeve. The pressure die core is arranged in a first installation groove, and the first installation groove is arranged at the outlet of the pressure die sleeve. A high-temperature resistant gasket is arranged between the first installation groove and the pressure die core;

[0007] The working die is arranged at the outlet end of the pressure die. An outlet groove is arranged at the outlet end of the working die. The working die includes a working die sleeve and a working die core arranged in the working die sleeve. The working die core is arranged in a second installation groove, and the second installation groove is arranged at the inlet of the working die sleeve;

[0008] A groove is arranged at the front end of the inlet of the working die sleeve, and a block matching the groove is arranged at the rear end of the outlet of the pressure die sleeve.

[0009] The beneficial effects of adopting the above technical solutions are as follows: The wire drawing die adopts a dual-mode structure, enabling good concentricity between the working die and the pressure die, which can reduce the drawing pressure on the pressure die core and the working die core and avoid the occurrence of demoulding. When in use, the aluminum-clad steel wire enters the pressure die from the inlet groove, and under the guiding action of the pressure die, the aluminum-clad steel wire enters the working die. The working die draws the wire diameter of the aluminum-clad steel wire to the required size, and the drawn aluminum-clad steel wire is output through the outlet groove for subsequent polishing and other operations. In addition, a first installation groove for embedding the pressure die core is provided at the outlet of the pressure die sleeve, and a high-temperature resistant gasket is placed before the pressure die core is placed. By relying on the elasticity of the high-temperature resistant gasket, the pressure die core can be made to fit with the diamond-coated die core, which can not only improve the stability of the pressure die core during placement and avoid drawing demoulding, but also reduce the difficulty of disassembling the pressure die core. Moreover, by adding a first installation groove on the pressure die to install the pressure die core, the lubrication effect during the drawing of the aluminum-clad steel wire can be improved, thereby extending the service life of the working die. At the same time, the added pressure die core can prevent the direct connection between the inlet groove and the inlet end of the working die, thereby reducing the pressure on the working die core and avoiding the demoulding caused by the huge pressure on the working die core, improving the drawing safety.

[0010] At the same time, by providing a groove at the front end of the inlet of the working die sleeve and a clamping block matching the groove at the rear end of the outlet of the pressure die sleeve, it is beneficial to splice and fix the pressure die and the working die, transfer the radial force from the die core to the die sleeve, which can not only improve the connection stability between the working die and the pressure die and avoid the occurrence of demoulding, but also effectively extend the service life of the wire drawing die and improve the sealing performance between the pressure die and the working die.

[0011] Furthermore, first sealing grooves are provided in the middle and rear parts of the pressure die sleeve, and first sealing rings are arranged in the first sealing grooves; a second sealing groove is provided at the rear end of the working die sleeve, and a second sealing ring is arranged in the second sealing groove.

[0012] The beneficial effects of adopting the above technical solutions are as follows: Through the combined use of the first sealing groove and the first sealing ring, and the second sealing groove and the second sealing ring, the effects of waterproofing and anti-corrosion can be achieved, extending the service life of the wire drawing die and reducing the production cost.

[0013] Furthermore, a through hole is provided between the inlet groove and the first installation groove, and the inlet groove, the through hole, the first installation groove, the second installation groove, and the outlet groove are coaxially arranged.

[0014] The beneficial effects of adopting the above technical solution are as follows: By arranging an inlet groove before the pressure die, it is beneficial to better introduce the lubricant. The aluminum-clad steel wire coated with the lubricant enters the through hole through the inlet groove, and a lubricating layer can be formed on the through hole of the pressure die sleeve between the inlet groove and the first installation groove, which can greatly reduce the friction between the aluminum-clad steel wire and the die, thereby reducing the wear of the aluminum-clad steel wire and extending the service life of the die.

[0015] Further, an annular water-cooling groove is arranged on the side wall of the pressure die sleeve.

[0016] The beneficial effects of adopting the above technical solution are as follows: By introducing cooling water through the annular water-cooling groove, the heat generated by the die during the drawing process can be effectively reduced, avoiding problems such as deformation or cracking caused by overheating, and further extending the service life of the die.

[0017] Further, a sealing glue layer is coated between the groove and the block.

[0018] The beneficial effects of adopting the above technical solution are as follows: By using the cooperation of the groove and the block during installation, the inner hole of the groove forms a clearance fit with the pressure die, and by coating the sealing glue as the sealing glue layer between the groove and the block, its sealing performance can be improved, preventing the cooling water from penetrating into the center of the die and extending the service life of the die.

[0019] Further, the pressure die core includes an inlet area and a first compression area arranged in sequence; the inlet area is connected to the end of the through hole, the first compression area is connected to the inlet area of the working die core, and the first compression area is a straight through hole;

[0020] The working die core includes an inlet area, a lubricating area, a second compression area, a sizing area, and an outlet area arranged in sequence, and the outlet area is connected to the outlet groove.

[0021] Further, the diameter of the through hole is larger than the diameter of the first compression area; the diameter of the first compression area is larger than the diameter of the second compression area.

[0022] The beneficial effects of adopting the above technical solution are as follows: The aluminum-clad steel wire with lubricant can enter the pressure die core through the through hole, and the diameter of the through hole is larger than the diameter of the first compression area in the pressure die core, which is beneficial for the pressure die core to bring in the lubricant, can meet the use requirements of the aluminum-clad steel wire drawing die for a longer lubricating area, improve the lubrication effect before the aluminum-clad steel wire is drawn, reduce the friction between the aluminum-clad steel wire and the die, and further extend the service life of the drawing die.

[0023] In summary, the beneficial effects of the aluminum-clad steel wire drawing die provided by the present utility model are as follows:

[0024] (1) The wire drawing die adopts a double die structure, which enables good concentricity between the working die and the pressure die, can reduce the drawing pressure on the pressure die core and the working die core, avoid the occurrence of demoulding phenomenon, and effectively improve the use safety.

[0025] (2) The pressure die and the working die in the wire drawing die are fixedly connected by means of grooves and bayonets, which is conducive to splicing and fixing the pressure die and the working die, transferring the radial force from the die core to the die sleeve, can not only improve the connection stability between the working die and the pressure die, avoid the occurrence of demoulding, but also effectively extend the service life of the wire drawing die.

[0026] (3) The wire drawing die is provided with a first installation groove for inserting the pressure die core at the outlet of the pressure die sleeve, and a high-temperature resistant gasket is placed before the pressure die core is put in. By relying on the elasticity of the high-temperature resistant gasket, it can not only improve the stability of the pressure die core when placed, avoid drawing demoulding, but also reduce the disassembly difficulty of the pressure die core.

[0027] (4) The wire drawing die installs the pressure die core by adding a first installation groove on the pressure die, which can improve the lubrication effect during the drawing process of the aluminum-clad steel wire, and then extend the service life of the working die; at the same time, by adding the pressure die core, it can avoid the direct connection between the inlet groove and the inlet end of the working die, thereby reducing the pressure on the working die core, and further avoiding the demoulding caused by the huge pressure on the working die core, and improving the drawing safety.

[0028] (5) The wire drawing die is provided with a pressure die core with a straight through hole before the working die and is directly connected to the inlet area of the working die, which is conducive to bringing in the lubricant, meets the use requirements of the aluminum-clad steel wire drawing die for a longer lubrication area, improves the lubrication effect before drawing the aluminum-clad steel wire, reduces the friction between the aluminum-clad steel wire and the die, and then extends the service life of the diamond-coated wire drawing die. Description of the Drawings

[0029] Figure 1 It is a schematic structural diagram of the wire drawing die in the present utility model;

[0030] Figure 2 It is a schematic structural diagram of the pressure die core in the present utility model;

[0031] Figure 3 It is a schematic structural diagram of the working die core in the present utility model;

[0032] Among them, 1. Mold body; 2. Inlet groove; 3. Through hole; 4. Pressure die; 41. Pressure die sleeve; 42. Pressure die core; 43; First installation groove; 44. High-temperature gasket; 45. First sealing groove; 46. First sealing ring; 47. Inlet area; 48. First compression area; 5. Working die; 51. Working die sleeve; 52. Working die core; 53. Second installation groove; 54. Second sealing groove; 55. Second sealing ring; 56. Inlet area; 57. Lubrication area; 58. Second compression area; 59. Sizing area; 510. Outlet area; 6. Outlet groove; 7. Annular water-cooling groove. Specific embodiments

[0033] The specific embodiments of the present invention will be described below to facilitate those skilled in the art of this technology to understand the present invention. However, it should be clear that the present invention is not limited to the scope of the specific embodiments. For those ordinary skilled in the art of this technology, as long as various changes are within the spirit and scope of the present invention defined and determined by the appended claims, these changes are obvious, and all utility models created using the concept of the present invention are within the scope of protection.

[0034] As Figure 1 shown, the aluminum-clad steel wire drawing die provided by the present invention includes a mold body 1. The mold body 1 includes a pressure die 4 and a working die 5; an inlet groove 2 is provided at the inlet end of the pressure die 4, the working die 5 is arranged at the outlet end of the pressure die 4, and an outlet groove 6 is provided at its outlet end; the aluminum-clad steel wire enters the pressure die 4 from the inlet groove 2, and the aluminum-clad steel wire enters the working die 5 under the guiding action of the pressure die 4. The working die 5 draws the wire diameter of the aluminum-clad steel wire to the required size, and the drawn aluminum-clad steel wire is output through the outlet groove 6 for subsequent polishing and other operations; at the same time, a groove is provided at the front end of the inlet of the working die sleeve 51, and a block matching the groove is provided at the rear end of the outlet of the pressure die sleeve 41; by setting the groove and the block matching the groove, it is beneficial to splice and fix the pressure die 4 and the working die 5, transfer the radial force from the die core to the die sleeve, which can not only improve the connection stability between the working die 5 and the pressure die 4 and avoid the occurrence of demoulding, but also effectively extend the service life of the wire drawing die.

[0035] As Figure 1 and Figure 2As shown in the figure, the pressure die 4 includes a pressure die sleeve 41 and a pressure die core 42 disposed within the pressure die sleeve 41. The pressure die core 42 is disposed within a first mounting groove 43, which is provided at the outlet of the pressure die sleeve 41. A high-temperature resistant gasket 44 is provided between the first mounting groove 43 and the pressure die core 42. By providing the first mounting groove 43 for inserting the pressure die core 42 at the outlet of the pressure die sleeve 41 and placing a high-temperature resistant gasket 44 before inserting the pressure die core 42, the elasticity of the high-temperature resistant gasket 44 can be relied upon to improve the stability of the pressure die core 42 during placement, avoid drawing and demoulding, and reduce the difficulty of disassembling the pressure die core 42. Moreover, by adding the first mounting groove 43 to the pressure die 4 to mount the pressure die core 42, the lubrication effect during the drawing process of the aluminum-clad steel wire can be improved, thereby extending the service life of the working die 5. At the same time, the additional pressure die core 42 can prevent the direct connection between the inlet groove 2 and the inlet end of the working die 5, thereby reducing the pressure on the working die core 52 and avoiding the demoulding caused by the huge pressure damaging the working die core 52, improving the drawing safety.

[0036] As Figure 2 shown, the pressure die core 42 includes an inlet zone 47 and a first compression zone 48 arranged in sequence. The inlet zone 47 is connected to the end of the through hole 3, and the first compression zone 48 is connected to the inlet zone 47 of the working die core 52. The inlet zone 47 can bring lubricant into the pressure die core 42, enabling the pressure die core 42 to carry lubricant, improving the lubrication effect before drawing the aluminum-clad steel wire, and thereby reducing the friction between the aluminum-clad steel wire and the die. The first compression zone 48 can correct the drawing direction of the aluminum-clad steel wire, improve the stability during the drawing process, reduce the movement of the aluminum-clad steel wire, and improve the drawing efficiency and drawing consistency.

[0037] As Figure 1 and Figure 3 shown, the working die 5 includes a working die sleeve 51 and a working die core 52 disposed within the working die sleeve 51. The working die core 52 is disposed within a second mounting groove 53, which is provided at the inlet of the working die sleeve 51. The working die core 52 includes an inlet zone 47, a lubrication zone 57, a second compression zone 58, a sizing zone 59, and an outlet zone 510 arranged in sequence. The outlet zone 510 is connected to the outlet groove 6. By inserting the working die core 52 into the second mounting groove 53, the installation stability of the working die core 52 can be improved, and the angle of the second compression zone 58 is determined based on the metal material and the drawing force, and the sizing length is determined by the drawing speed.

[0038] In this embodiment, first sealing grooves 45 are provided in the middle and rear of the pressure die sleeve 41, and first sealing rings 46 are arranged in the first sealing grooves 45; a second sealing groove 54 is provided at the rear end of the working die sleeve 51, and a second sealing ring 55 is arranged in the second sealing groove 54; through the cooperation between the first sealing groove 45 and the first sealing ring 46, and the second sealing groove 54 and the second sealing ring 55, the effects of waterproofing and anti-corrosion can be achieved, the service life of the wire drawing die can be prolonged, and the production cost can be reduced. Moreover, an annular water cooling groove 7 is provided on the side wall of the pressure die sleeve 41; by introducing cooling water through the annular water cooling groove 7, the heat generated by the die during the wire drawing process can be effectively reduced, avoiding problems such as deformation or cracking caused by overheating, and thus prolonging the service life of the die.

[0039] In this embodiment, a through hole 3 is provided between the inlet groove 2 and the first installation groove 43. The inlet groove 2, the through hole 3, the first installation groove 43, the second installation groove 53 and the outlet groove 6 are coaxially arranged, and the diameter of the through hole 3 is larger than the diameter of the first compression zone 48; the diameter of the first compression zone 48 is larger than the diameter of the second compression zone 58; by providing the inlet groove 2 before the pressure die 4, it is beneficial to better introduce the lubricant. The aluminum-clad steel wire coated with the lubricant enters the through hole 3 through the inlet groove 2, and a lubricating layer can be formed on the through hole 3 on the pressure die sleeve 41 between the inlet groove 2 and the first installation groove 43. Moreover, the diameter of the through hole 3 is larger than the diameter of the first compression zone 48 in the pressure die core 42, so that the pressure die core 42 can be provided with the lubricant, thereby improving the lubrication effect before the aluminum-clad steel wire is drawn, greatly reducing the friction between the aluminum-clad steel wire and the die, reducing the wear of the aluminum-clad steel wire, and prolonging the service life of the die.

[0040] In summary, the aluminum-clad steel wire drawing die provided by the present utility model adopts a double die structure, so that there is good concentricity between the working die 5 and the pressure die 4, transferring the radial force from the die core to the die sleeve, which can not only reduce the drawing pressure on the pressure die core 42 and the working die core 52, avoid the occurrence of demoulding phenomenon, but also effectively prolong the service life of the wire drawing die.

Claims

1. An aluminum-clad steel wire drawing die, characterized in that: It includes a die body (1), and the die body (1) includes a pressure die (4) and a working die (5). An inlet groove (2) is provided at the inlet end of the pressure die (4). The pressure die (4) includes a pressure die sleeve (41) and a pressure die core (42) arranged inside the pressure die sleeve (41). The pressure die core (42) is arranged in a first installation groove (43), and the first installation groove (43) is arranged at the outlet of the pressure die sleeve (41). A high-temperature resistant gasket (44) is arranged between the inside of the first installation groove (43) and the pressure die core (42). The working die (5) is arranged at the outlet end of the pressure die (4). An outlet groove (6) is provided at the outlet end of the working die (5). The working die (5) includes a working die sleeve (51) and a working die core (52) arranged inside the working die sleeve (51). The working die core (52) is arranged in a second installation groove (53), and the second installation groove (53) is arranged at the inlet of the working die sleeve (51). A groove is provided at the front end of the inlet of the working die sleeve (51), and a clamping block matching the groove is provided at the rear end of the outlet of the pressure die sleeve (41).

2. The aluminum-clad steel wire drawing die according to claim 1, characterized in that: First sealing grooves (45) are provided in the middle and rear parts of the pressure die sleeve (41), and first sealing rings (46) are arranged in the first sealing grooves (45); a second sealing groove (54) is provided at the rear end of the working die sleeve (51), and a second sealing ring (55) is arranged in the second sealing groove (54).

3. The aluminum-clad steel wire drawing die according to claim 1, wherein: A through hole (3) is arranged between the inlet groove (2) and the first installation groove (43), and the inlet groove (2), the through hole (3), the first installation groove (43), the second installation groove (53) and the outlet groove (6) are coaxially arranged.

4. The aluminum-clad steel wire drawing die according to claim 1, wherein: An annular water cooling groove (7) is provided on the side wall of the pressure die sleeve (41).

5. The aluminum-clad steel wire drawing die according to claim 1, wherein: A sealing glue layer is coated between the groove and the clamping block.

6. The aluminum-clad steel wire drawing die according to claim 1, wherein: The pressure die core (42) includes an inlet area (47) and a first compression area (48) arranged in sequence; the inlet area (47) is connected to the end of the through hole (3), the first compression area (48) is connected to the inlet area (47) of the working die core (52), and the first compression area is a straight through hole. The working die core (52) includes an inlet area (47), a lubrication area (57), a second compression area (58), a sizing area (59) and an outlet area (510) arranged in sequence, and the outlet area (510) is connected to the outlet groove (6).

7. The aluminum-clad steel wire drawing die according to claim 3, characterized in that: The diameter of the through hole (3) is larger than the diameter of the first compression area (48); the diameter of the first compression area (48) is larger than the diameter of the second compression area (58).

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