Single-crystal die core of wire-drawing die

Abstract

The utility model discloses a single crystal die core of a wire drawing die, which comprises a die core, four fan-shaped clamping tables are movably arranged on the outer surface of the die core, clamping table inner grooves are arranged on the inner sides of the fan-shaped clamping tables, four L-shaped first fixing plates are fixedly arranged on the outer surface of the die core, and the clamping table inner grooves are arranged in the clamping table inner grooves. And L-shaped second fixing plates are fixedly mounted at one ends of the surfaces of the inner walls of the clamping table inner grooves correspondingly, and the first fixing plates are movably clamped into the clamping table inner grooves correspondingly. Four movable rods can be pulled out to pull a limiting plate to retract into a spring groove, at the moment, a fan-shaped clamping table loses blocking of a first fixing plate to the limiting plate, and the fan-shaped clamping table can push a second fixing plate to rotate along the axis of a mold core under the action of elastic potential energy of a bending spring; the four fan-shaped clamping tables rotate on the outer side of the mold core, then the fan-shaped clamping tables can be pulled out, disassembly between the fan-shaped clamping tables and the mold core is achieved, and the mold core can be taken out and replaced.

Description

Technical Field

[0001] The utility model relates to the technical field of wire drawing die cores, in particular to a single crystal die core for a wire drawing die. Background Art

[0002] Wire drawing dies are a kind of necessary dies that draw metal wires from rough wire blanks with irregular sizes and shapes into fine wires with uniform sizes that meet people's production or life requirements. The materials in the wire drawing die cores are mostly wear-resistant metal materials, PCD materials, CVD diamond materials, and single crystal diamond materials. Although the processing methods of metal materials are mature and the processing accuracy can be controlled, the metal wire drawing dies have a short service life due to the problems of metal hardness and wear resistance. Large deformation is a problem that has always existed, and the wire drawing shape structure is a single circle. Although the hardness, wear resistance and service life of the wire drawing die cores of PCD materials, CVD materials, and single crystal diamond materials are very impressive.

[0003] Regarding the existing patent number: CN202222133707.2, the patent name is: A high-precision wear-resistant single crystal core of a wire drawing die. By providing cover plates on both sides of the wire drawing die, the position of the positioning block can be effectively limited, thereby improving the stability of the placement of the wire drawing die core. A sliding rod and a card block are provided on the outer side of the cover plate, which facilitates the sliding of the cover plate on the inner side of the wire drawing die. By facilitating the limitation of the card block on the inner side of the card slot, the stability of the cover plate is improved. However, when it is in use, when the die mouth of the core is damaged and the core needs to be replaced, it is difficult for the device to replace the core, resulting in inconvenience in use.

[0004] It is usually difficult to replace the core at the die mouth of existing wire drawing dies, and the die mouth of the core is easily affected by high temperature and wears out, and has a short service life; therefore, it does not meet existing needs. We have proposed a single crystal core for a wire drawing die. Utility Model Content

[0005] The purpose of the utility model is to provide a single crystal core of a wire drawing die, so as to solve the problems proposed in the above-mentioned background technology that it is usually difficult to replace the core at the die opening position of the wire drawing die, the die opening of the core is easily affected by high temperature and wears, and the service life is short.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a single crystal core of a wire drawing die, comprising a core, four fan-shaped clamping tables movably mounted on the outer surface of the core, the inner sides of the fan-shaped clamping tables are provided with clamping table inner grooves, four L-shaped first fixed plates are fixedly mounted on the outer surface of the core, an L-shaped second fixed plate is fixedly mounted at one end of the inner wall surface of the clamping table inner groove, the first fixed plates are movably inserted into the interior of the clamping table inner groove, the first fixed plates and the second fixed plates are installed in cooperation with each other, a baffle is fixedly mounted on the inner surface of the first fixed plate, a bending spring is movably mounted on the outer surface of the baffle, and the surface of the bending spring is in contact with the inner surface of the second fixed plate.

[0007] Preferably, a spring groove is provided at the other end of the inner wall surface of the inner groove of the clamping table, a limit plate is slidably installed inside the spring groove, a compression spring is movably installed between the limit plate and the inside of the spring groove, and an arc surface is provided on one side of the bottom end surface of the limit plate.

[0008] Preferably, the outer surface of the fan-shaped clamping table is provided with a movable groove, the top of the limit plate is fixedly installed with a movable rod, the movable rod passes through the interior of the compression spring, the movable rod passes through the spring groove and the interior of the movable groove and extends to the outside of the fan-shaped clamping table, and a support plate is movably installed inside the movable groove, and the support plate is rotatably connected to the movable rod.

[0009] Preferably, a mold opening is provided at the center of the inner side of the mold core, a cooling ring groove is provided inside the mold core near the mold opening, four cooling holes are provided on the outside of the cooling ring groove, and a water inlet is provided on the surface of the fan-shaped clamping table, the water inlet is through-connected to the inside of the inner groove of the clamping table, and the inner groove of the clamping table is through-connected to the inside of the cooling hole.

[0010] Preferably, the limiting plate is in contact with the outer surface of the first fixing plate.

[0011] Compared with the prior art, the beneficial effects of the utility model are:

[0012] 1. The utility model cooperates with the mold core and the fan-shaped clamping platform, so that when the device is in use, when the mold opening inside the mold core is severely worn and needs to be replaced, the four movable rods can be pulled out to make the movable rods pull the limit plate back to the inside of the spring groove. At this time, the fan-shaped clamping platform loses the blocking of the limit plate by the first fixed plate, and the fan-shaped clamping platform will be subject to the elastic potential energy of the bending spring to push the second fixed plate to rotate along the axis of the mold core, so that the four fan-shaped clamping platforms rotate on the outside of the mold core, and then the fan-shaped clamping platform can be pulled outward to realize the disassembly between the fan-shaped clamping platform and the mold core. At this time, the mold core can be taken out and replaced, so that the device is convenient for replacing the mold core with worn mold opening;

[0013] 2. The utility model cooperates with the support plate and the movable groove. When the mold core is disassembled, after the movable rod is pulled out, the movable rod will drive the support plate to be pulled out from the movable groove. At this time, the support plate can be rotated 90 degrees so that the support plate cannot be stuck in the inside of the movable groove. At this time, the elastic potential energy rebound of the limit plate due to the compression spring will be blocked by the support plate and the outer surface of the fan-shaped clamping table, thereby avoiding the situation where the four movable rods cannot be pulled out at the same time due to the elastic rebound of the limit plate. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0015] Figure 2 It is a cross-sectional front view of the mold core and the fan-shaped clamping table of the utility model after installation;

[0016] Figure 3 It is a cross-sectional front view of the mold core and the fan-shaped clamping table of the utility model when they are installed;

[0017] Figure 4 For this utility model Figure 2 Schematic diagram of the local structure of part A.

[0018] In the figure: 1. mold core; 2. mold mouth; 3. fan-shaped clamping table; 4. water inlet; 5. movable groove; 6. movable rod; 7. cooling ring groove; 8. cooling hole; 9. inner groove of the clamping table; 10. first fixed plate; 11. second fixed plate; 12. baffle; 13. bending spring; 14. support plate; 15. spring groove; 16. compression spring; 17. limit plate; 18. arc surface. DETAILED DESCRIPTION

[0019] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0020] See also Figures 1 to 4The utility model provides an embodiment: a single crystal core of a wire drawing die, comprising a core 1, four fan-shaped clamping tables 3 are movably installed on the outer surface of the core 1, and the inner sides of the fan-shaped clamping tables 3 are provided with clamping table inner grooves 9, and four L-shaped first fixed plates 10 are fixedly installed on the outer surface of the core 1, and an L-shaped second fixed plate 11 is fixedly installed at one end of the inner wall surface of the clamping table inner groove 9, and the first fixed plates 10 are movably inserted into the interior of the clamping table inner groove 9, and the first fixed plates 10 and the second fixed plates 11 are installed in cooperation with each other, and a baffle 12 is fixedly installed on the inner surface of the first fixed plate 10, and a bending spring 13 is movably installed on the outer surface of the baffle 12, and the surface of the bending spring 13 is in contact with the inner surface of the second fixed plate 11. Through the cooperation between the mold core 1 and the fan-shaped clamping platform 3, when the mold opening 2 on the inner side of the mold core 1 is severely worn and needs to be replaced, the four movable rods 6 can be pulled out to make the movable rods 6 pull the limit plate 17 back to the inside of the spring groove 15. At this time, the fan-shaped clamping platform 3 loses the obstruction of the first fixed plate 10 on the limit plate 17, and the fan-shaped clamping platform 3 will be driven by the elastic potential energy of the bending spring 13 to push the second fixed plate 11 to rotate along the axis of the mold core 1, so that the four fan-shaped clamping platforms 3 rotate on the outside of the mold core 1, and then the fan-shaped clamping platform 3 can be pulled outward to realize the disassembly between the fan-shaped clamping platform 3 and the mold core 1. At this time, the mold core 1 can be taken out and replaced, so as to facilitate the device to replace the mold core 1 with the worn mold opening 2.

[0021] A spring groove 15 is provided at the other end of the inner wall surface of the inner groove 9 of the clamping table, and a limit plate 17 is slidably installed inside the spring groove 15. A compression spring 16 is movably installed between the limit plate 17 and the inside of the spring groove 15, and an arc surface 18 is provided on one side of the bottom end surface of the limit plate 17.

[0022] The outer surface of the fan-shaped clamping platform 3 is provided with a movable groove 5, and the top of the limit plate 17 is fixedly installed with a movable rod 6, which passes through the interior of the compression spring 16, and the movable rod 6 passes through the spring groove 15 and the interior of the movable groove 5 and extends to the outer side of the fan-shaped clamping platform 3. The interior of the movable groove 5 is movably installed with a support plate 14, and the support plate 14 is rotatably connected to the movable rod 6. Through the cooperation of the support plate 14 and the movable groove 5, when the mold core 1 is disassembled, after the movable rod 6 is pulled out, the movable rod 6 will drive the support plate 14 to be pulled out from the movable groove 5. At this time, the support plate 14 can be rotated 90 degrees, so that the support plate 14 cannot be stuck in the interior of the movable groove 5. At this time, the limit plate 17 is rebounded by the elastic potential energy of the compression spring 16 and is blocked by the support plate 14 and the outer surface of the fan-shaped clamping platform 3, thereby avoiding the situation where the limit plate 17 cannot pull out the four movable rods 6 at the same time due to the elastic rebound.

[0023] A die opening 2 is provided at the center of the inner side of the die core 1, a cooling ring groove 7 is provided at the inner side of the die core 1 near the die opening 2, four cooling holes 8 are provided at the outer side of the cooling ring groove 7, and a water inlet 4 is provided on the surface of the fan-shaped clamping table 3, the water inlet 4 is connected to the inner side of the clamping table inner groove 9, and the clamping table inner groove 9 is connected to the inner side of the cooling holes 8. Through the cooperation of the cooling ring groove 7 and the water inlet 4, when the device is in use, cooling water can be introduced into the inner side of the clamping table inner groove 9 through the water inlet 4 near the top, and the cooling water will enter the inner side of the cooling ring groove 7 through the cooling holes 8 after entering the inner side of the clamping table inner groove 9, thereby cooling the position of the die opening 2, avoiding the local temperature of the die opening 2 from being too high and accelerating the wear speed, and improving the service life of the device. The used cooling water can be discharged through the water inlet 4 near the bottom for recycling.

[0024] The limiting plate 17 is in contact with the outer surface of the first fixing plate 10 .

[0025] When the single crystal die core of the wire drawing die is in use, when the die opening 2 on the inner side of the die core 1 is severely worn and needs to be replaced, the four movable rods 6 can be pulled out to make the movable rods 6 pull the limit plate 17 back to the inside of the spring groove 15. At this time, the movable rods 6 will drive the support plate 14 to be pulled out from the movable groove 5. At this time, the support plate 14 can be rotated 90 degrees so that the support plate 14 cannot be stuck in the inside of the movable groove 5. At this time, the limit plate 17 is rebounded by the elastic potential energy of the compression spring 16 and is blocked by the outer surface of the support plate 14 and the fan-shaped clamping table 3, thereby avoiding the limit plate 17 from being elastically The fan-shaped clamping platform 3 will rebound, resulting in the situation that the four movable rods 6 cannot be pulled out at the same time, and then the fan-shaped clamping platform 3 will lose the blocking of the first fixed plate 10 on the limit plate 17, and the fan-shaped clamping platform 3 will be subject to the elastic potential energy of the bending spring 13 to push the second fixed plate 11 to rotate along the axis of the mold core 1, so that the four fan-shaped clamping platforms 3 rotate on the outside of the mold core 1, and then the fan-shaped clamping platform 3 can be pulled outward to realize the disassembly between the fan-shaped clamping platform 3 and the mold core 1. At this time, the mold core 1 can be taken out and replaced, so as to facilitate the device to replace the mold core 1 with the worn mold opening 2;

[0026] After replacing the mold core 1, the four fan-shaped clamping tables 3 can be placed on the outer side of the replaced mold core 1, so that the first fixed plates 10 are all stuck in the inner groove 9 of the clamping table. At this time, the fan-shaped clamping tables 3 are rotated together to make the second fixed plate 11 stuck in the inner side of the first fixed plate 10. At the same time, the arc surface 18 on the surface of the limiting plate 17 will hit the outer side surface of the first fixed plate 10, so that the limiting plate 17 will retract to the inside of the spring groove 15. When the second fixing plate 11 is stuck in the inner side of the first fixing plate 10, the limiting plate 17 will be ejected by the elastic potential energy of the compression spring 16 to block the first fixing plate 10, so that the fan-shaped clamping table 3 cannot rotate, so that the mold core 1 and the fan-shaped clamping table 3 are fastened;

[0027] When wire drawing is being performed, cooling water can be introduced into the inner groove 9 of the clamping table through the water inlet 4 near the top. After the cooling water enters the inner groove 9 of the clamping table, it will enter the cooling ring groove 7 through the cooling hole 8, thereby cooling the position of the die mouth 2 to avoid excessive local temperature of the die mouth 2 and accelerated wear speed, thereby increasing the service life of the device. The used cooling water can be discharged through the water inlet 4 near the bottom for recycling.

[0028] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-limiting from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims are included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

Claims

1. A single crystal core of a wire drawing die, comprising a core (1), characterized in that: Four fan-shaped clamping tables (3) are movably mounted on the outer surface of the mold core (1), and the inner sides of the fan-shaped clamping tables (3) are provided with clamping table inner grooves (9). Four L-shaped first fixing plates (10) are fixedly mounted on the outer surface of the mold core (1), and one end of the inner wall surface of the clamping table inner groove (9) is fixedly mounted with an L-shaped second fixing plate (11). The first fixing plates (10) are movably inserted into the inside of the clamping table inner groove (9), and the first fixing plates (10) and the second fixing plates (11) are installed in cooperation with each other. A baffle plate (12) is fixedly mounted on the inner surface of the first fixing plate (10), and a bending spring (13) is movably mounted on the outer surface of the baffle plate (12), and the surface of the bending spring (13) is in contact with the inner surface of the second fixing plate (11).

2. A single crystal core for a wire drawing die according to claim 1, characterized in that: A spring groove (15) is provided at the other end of the inner wall surface of the inner groove (9) of the clamping table, a limit plate (17) is slidably installed inside the spring groove (15), a compression spring (16) is movably installed between the limit plate (17) and the inside of the spring groove (15), and an arc surface (18) is provided on one side of the bottom end surface of the limit plate (17).

3. A single crystal core for a wire drawing die according to claim 2, characterized in that: The outer surface of the fan-shaped clamping platform (3) is provided with a movable groove (5), and the top of the limit plate (17) is fixedly mounted with a movable rod (6), and the movable rod (6) passes through the inside of the compression spring (16). The movable rod (6) passes through the inside of the spring groove (15) and the movable groove (5) and extends to the outside of the fan-shaped clamping platform (3), and the inside of the movable groove (5) is movably mounted with a support plate (14), and the support plate (14) is rotatably connected to the movable rod (6).

4. A single crystal core for a wire drawing die according to claim 1, characterized in that: A die opening (2) is provided at the center of the inner side of the die core (1); a cooling ring groove (7) is provided inside the die core (1) near the die opening (2); four cooling holes (8) are provided on the outer side of the cooling ring groove (7); a water inlet (4) is provided on the surface of the fan-shaped clamping platform (3); the water inlet (4) is connected to the inside of the inner groove (9) of the clamping platform; and the inner groove (9) of the clamping platform is connected to the inside of the cooling hole (8).

5. A single crystal core for a wire drawing die according to claim 2, characterized in that: The limiting plate (17) is in contact with the outer surface of the first fixing plate (10).

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