High-precision steel wire cold drawing device

Abstract

The utility model discloses a high-precision steel wire cold-drawing device, belongs to the technical field of steel wire cold-drawing, and aims to solve the problems that a die of the cold-drawing device is not easy to quickly replace according to specific requirements, and a drawn steel wire is high in temperature and is not easy to carry out subsequent operation. A driving chain wheel and a driven chain wheel are rotationally connected between the inner walls of the two ends of the rack; the same chain is mounted on the outer surfaces of the driving chain wheel and the driven chain wheel; the rotating plate is driven by the twisting wheel to rotate, so that the inserting block is separated from the inserting groove in the cavity mold, after the cavity mold is replaced, the twisting wheel is loosened, and the cavity mold with the replaced inserting block is pushed under the action of the spring to be rapidly fixed; and the air duct moves along with the rail car to blow and cool the drawn steel wire, so that the problems that a cold drawing device is not easy to quickly replace a mold according to specific requirements, and the drawn steel wire is high in temperature and is not easy to carry out subsequent operation are effectively solved.

Description

Technical Field

[0001] The utility model belongs to the technical field of wire cold drawing, and particularly relates to a high-precision wire cold drawing device. Background Technique

[0002] Wire cold drawing is a relatively common wire processing technology. By passing the rolling head end of the wire blank through the die hole of the cold drawing die, and applying a certain drawing force to the wire blank through the clamping of the fixture to achieve the forced deformation of the wire blank. Cold drawn wire can effectively improve the strength and toughness of the wire, making it have better mechanical properties and being more suitable for application scenarios requiring high strength and high toughness. Compared with hot rolled and hot drawn wires, cold drawn wire can provide higher dimensional accuracy, which is very important for the manufacturing industry that requires high-precision products.

[0003] When the existing wire cold drawing device is in use, the cold drawing die is mostly fixedly arranged with the whole cold drawing device, and the practicability is relatively low. This makes the cold drawing device suitable for producing cold drawn wires of the same size specification. When it is necessary to use the cold drawing device to produce cold drawn wires of different size specifications, it is not easy to replace the cold drawing die, which greatly affects the production efficiency of cold drawn wires. Moreover, during the wire drawing process, the wire is subjected to extrusion and friction by the die, and this mechanical action generates heat, making the temperature of the drawn wire relatively high, which affects the subsequent operations on the cold drawn wire.

[0004] Therefore, a high-precision wire cold drawing device is needed to solve the problems in the existing technology that it is not easy to quickly replace the die according to specific requirements, and the temperature of the drawn wire is relatively high and not easy to carry out subsequent operations. Summary of the Utility Model

[0005] The purpose of the utility model is to provide a high-precision wire cold drawing device to solve the problems put forward in the above background technique.

[0006] To achieve the above purpose, the utility model provides the following technical solution: A high-precision wire cold drawing device, including a frame. Between the inner walls at both ends of the frame, a driving sprocket and a driven sprocket are rotatably connected. The outer surfaces of the driving sprocket and the driven sprocket are provided with the same chain. At both ends of the top surface of the frame, guide rails are fixedly connected. The same track vehicle is installed on the outer surfaces of the two guide rails. Support seats are fixedly connected to the outer walls on both sides of the frame. An installation groove is penetrated and opened on the side wall of one of the support seats and a quick installation mechanism is arranged inside. The support seat installs a cavity die through the quick installation mechanism;

[0007] The quick installation mechanism includes a U-shaped groove which is opened inside one of the support seats. Both the top surface and the bottom surface inside the U-shaped groove are fixedly connected with two parallel springs. The ends of the two springs at the same level, which are away from the U-shaped groove, are fixedly connected with the same moving plate. The top surface of the moving plate is fixedly connected with a plug. A rotating shaft is rotatably connected between the two side walls inside the U-shaped groove. A rotating plate is fixedly connected to the outer surface of the rotating shaft. One side outer wall of the rotating shaft rotatably penetrates through one side outer wall of the support seat and is coaxially fixedly connected with a screwing wheel.

[0008] It should be noted in the solution that two parallel mounting plates are fixedly connected to one side outer wall of the rail vehicle. Two parallel sliding rods are fixedly connected between the adjacent outer walls of the two mounting plates. Two symmetrically distributed clamps are slidably connected to the outer surfaces of the two sliding rods. Push cylinders are fixedly connected to the opposite end outer walls of the two mounting plates. The output end of each push cylinder slidably penetrates through the corresponding mounting plate and is fixedly connected with one end outer wall of the corresponding clamp.

[0009] Furthermore, it is worth noting that an activity groove is opened on the other side of the top surface of the rail vehicle. A hook plate is rotatably connected between the two end walls inside the activity groove. A T-shaped rod is fixedly connected to the top surface of the rail vehicle corresponding to the activity groove. A telescopic cylinder is hinged between one side outer wall of the vertical section of the T-shaped rod and the top surface of the hook plate.

[0010] Even further, it should be noted that two parallel vertical plates are fixedly connected to the top surface of one of the support seats. A winding roller is rotatably connected between the adjacent outer walls of the two vertical plates. A steel wire rope is wound around the outer surface of the winding roller. One end of the steel wire rope is fixedly connected to one side outer wall of the rail vehicle.

[0011] As a preferred implementation manner, two symmetrically distributed air cylinders are hinged to one side of the top surface of the rail vehicle. There is a cavity below the rail vehicle and a rotatable pressure sprocket is installed in the cavity.

[0012] As a preferred implementation manner, a reduction motor for the rotation of the driving sprocket is fixedly connected to one end outer wall of the frame. Slots which are matched with the plugs are opened on both the top surface and the bottom surface of the cavity die.

[0013] As a preferred implementation manner, a servo motor for the rotation of the winding roller is fixedly connected to one end outer wall of one of the vertical plates. The pressure sprocket presses on the chain and meshes with it.

[0014] Compared with the prior art, a high-precision steel wire cold drawing device provided by the present utility model has at least the following beneficial effects:

[0015] (1) Through the action of the quick installation mechanism, turning the screw wheel drives the rotating plate to rotate, causing the rotating plate to push the moving plate to drive the insertion block to move, thereby separating the insertion block from the slot on the cavity mold, releasing the locking and fixing of the cavity mold. After replacing the cavity mold, loosen the screw wheel, and under the action of the spring, push the moving plate to drive the insertion block to reset, quickly fixing the replaced cavity mold. The operation is simple, effectively avoiding the problem that the cold drawing device is not easy to quickly replace the mold according to specific requirements.

[0016] (2) Through the two symmetrically distributed air ducts set, when the rail car moves for wire drawing, the air ducts move with the rail car to blow and cool the drawn wire. The hinged air ducts can adjust the blowing direction, with good cooling effect, effectively avoiding the problem that the temperature of the drawn wire is too high and it is not easy to carry out subsequent operations. Brief Description of the Drawings

[0017] Figure 1 is the overall structural schematic diagram of the present utility model;

[0018] Figure 2 is the front view sectional structural schematic diagram of the frame and the rail car of the present utility model;

[0019] Figure 3 is the side view structural schematic diagram of one of the support seats of the present utility model;

[0020] Figure 4 is the partial structural schematic diagram of the quick installation mechanism of the present utility model.

[0021] In the figure: 1, frame; 2, driving sprocket; 3, driven sprocket; 4, chain; 5, guide rail; 6, rail car; 7, support seat; 8, installation groove; 9, quick installation mechanism; 91, U-shaped groove; 92, spring; 93, moving plate; 94, insertion block; 95, rotating shaft; 96, rotating plate; 97, screw wheel; 10, cavity mold; 11, mounting plate; 12, sliding rod; 13, clamp; 14, pushing cylinder; 15, air duct; 16, movable groove; 17, hook plate; 18, T-shaped rod; 19, telescopic cylinder; 20, vertical plate; 21, winding roller; 22, steel wire rope; 23, pressing sprocket. Detailed Embodiment

[0022] The following further describes the present utility model in conjunction with embodiments.

[0023] Please refer to Figures 1 - 4, the present utility model provides a high-precision cold drawing device for steel wires, which includes a frame 1. Between the inner walls at both ends of the frame 1, a driving sprocket 2 and a driven sprocket 3 are rotatably connected. The outer surfaces of the driving sprocket 2 and the driven sprocket 3 are provided with the same chain 4. At both ends of the top surface of the frame 1, guide rails 5 are fixedly connected. On the outer surfaces of the two guide rails 5, the same rail car 6 is installed. On both outer walls of the frame 1, support seats 7 are fixedly connected. An installation groove 8 is penetrated through the side wall of one of the support seats 7 and a quick-installation mechanism 9 is arranged inside. The support seat 7 is installed with a cavity mold 10 through the quick-installation mechanism 9;

[0024] The quick-installation mechanism 9 includes a U-shaped groove 91, which is opened inside one of the support seats 7. On the top surface and the bottom surface inside the U-shaped groove 91, two parallel springs 92 are fixedly connected. At one end far away from the U-shaped groove 91 of the two springs 92 at the same level, the same moving plate 93 is fixedly connected. On the top surface of the moving plate 93, a plug 94 is fixedly connected. Between the two side walls inside the U-shaped groove 91, a rotating shaft 95 is rotatably connected. On the outer surface of the rotating shaft 95, a rotating plate 96 is fixedly connected. On one side outer wall of the rotating shaft 95, it rotatably penetrates through the side wall of one of the support seats 7 and is coaxially fixedly connected with a screwing wheel 97.

[0025] Further, as Figure 1 and Figure 2 shown, specifically, on one side outer wall of the rail car 6, two parallel mounting plates 11 are fixedly connected. Between the outer walls of the two adjacent mounting plates 11, two parallel sliding rods 12 are fixedly connected. On the outer surfaces of the two sliding rods 12, two symmetrically distributed clamps 13 are slidably connected. On the outer walls of the opposite ends of the two mounting plates 11, pushing cylinders 14 are fixedly connected. The output end of each pushing cylinder 14 slidably penetrates through the corresponding mounting plate 11 and is fixedly connected with the outer wall of one end of the corresponding clamp 13.

[0026] Further, as Figure 1 and Figure 2 shown, specifically, on the other side of the top surface of the rail car 6, a movable groove 16 is opened. Between the two end walls inside the movable groove 16, a hook plate 17 is rotatably connected. At the position corresponding to the movable groove 16 on the top surface of the rail car 6, a T-shaped rod 18 is fixedly connected. Between the outer wall of the vertical section of the T-shaped rod 18 and the top surface of the hook plate 17, a telescopic cylinder 19 is hinged.

[0027] Further, as Figure 1 and Figure 3 shown, specifically, on the top surface of one of the support seats 7, two parallel vertical plates 20 are fixedly connected. Between the outer walls of the two adjacent vertical plates 20, a winding roller 21 is rotatably connected. A steel wire rope 22 is wound around the outer surface of the winding roller 21. One end of the steel wire rope 22 is fixedly connected with the outer wall of one side of the rail car 6.

[0028] Further, as Figure 1and Figure 2 As shown, it is worth specifically explaining that two symmetrically distributed air ducts 15 are hinged on one side of the top surface of the rail vehicle 6, and a cavity is provided in the lower part of the rail vehicle 6, and a rotatable pressure sprocket 23 is installed in the cavity.

[0029] Furthermore, as shown in Figure 1 and Figure 4 it is worth specifically explaining that a reduction motor for the rotation of the driving sprocket 2 is fixedly connected to the outer wall of one end of the frame 1. The driving sprocket 2 is driven to rotate by the reduction motor, thereby controlling the rotation of the chain 4. Slots matching the insertion blocks 94 are provided on both the top surface and the bottom surface of the cavity die 10. The cavity die 10 is locked and fixed through the cooperation of the insertion blocks 94 and the slots.

[0030] Furthermore, as shown in Figure 1 、 Figure 2 and Figure 3 it is worth specifically explaining that a servo motor for the rotation of the winding roller 21 is fixedly connected to the outer wall of one end of one of the vertical plates 20, which is convenient for controlling the rotation of the winding roller 21. The pressure sprocket 23 presses on the chain 4 and meshes with it. When the hook plate 17 hooks the chain 4, the pressure sprocket 23 presses the chain 4 so that it is not pulled up significantly.

[0031] In summary: When the device is in use, first, the rolling head end of the steel raw material to be cold-drawn is passed through the die hole of the cavity die 10. At the same time, two push cylinders 14 push two clamps 13 to approach each other to clamp and fix the steel raw material. Then, the telescopic cylinder 19 is controlled to push the hook plate 17 to rotate downward until it hooks the chain 4. Then, the reduction motor on the driving sprocket 2 and the two air ducts 15 are started. After the driving sprocket 2 rotates, the chain 4 rotates with the cooperation of the driven sprocket 3, thereby pulling the rail vehicle 6 to move away from the cavity die 10. When the rail vehicle 6 moves, it pulls the steel wire rope 22 to reverse the winding roller 21 and the servo motor on the winding roller 21, so that the clamp 13 applies a certain drawing force to the steel raw material to force it to deform. The pressure sprocket 23 presses the chain 4 so that it is not pulled up significantly. At the same time, the two air ducts 15 blow air to cool the drawn steel wire, effectively avoiding the problem that the temperature of the drawn steel wire is too high and it is not easy to perform subsequent operations.

[0032] When it is necessary to replace the cavity die 10 to draw steel wires of different specifications, the operator can turn the turning wheel 97 to drive the rotation of the rotating shaft 95. The rotation of the rotating shaft 95 drives the rotation of the rotating plate 96. When the rotating plate 96 rotates, it pushes the two moving plates 93 to move in opposite directions. At this time, the spring 92 is stressed and contracts. When the rotating plate 96 rotates to a vertical state, the two moving plates 93 drive the two insertion blocks 94 to separate from the two slots on the cavity die 10 respectively, thus releasing the locking of the cavity die 10, and the cavity die 10 can be disassembled and replaced. After replacing the cavity die 10 according to specific requirements, loosen the turning wheel 97, and under the elastic action of the spring 92, the two insertion blocks 94 are respectively pushed into the two slots on the replaced cavity die 10 to quickly lock and fix the replaced cavity die 10. The operation is simple, effectively avoiding the problem that the cold drawing device is not easy to quickly replace the die according to specific requirements.

[0033] The air duct 15 can be purchased on the market. The air duct 15 is equipped with a power supply, which is a mature technology in this field and has been fully disclosed, so it will not be repeated in the specification.

[0034] Finally, it should be noted that the above are only the preferred embodiments of the present invention and are not used to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements for some of the technical features. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. A high-precision steel wire cold drawing device, comprising a frame (1), characterized in that: A driving sprocket (2) and a driven sprocket (3) are rotatably connected between the inner walls at both ends of the frame (1); the outer surfaces of the driving sprocket (2) and the driven sprocket (3) are mounted with a same chain (4); both ends of the top surface of the frame (1) are fixedly connected with guide rails (5); the outer surfaces of the two guide rails (5) are mounted with a same rail car (6); the outer walls on both sides of the frame (1) are fixedly connected with support seats (7); a mounting groove (8) is provided through the side wall of one of the support seats (7) and a quick-installation mechanism (9) is arranged inside; the support seat (7) is mounted with a cavity mold (10) via the quick-installation mechanism (9); The quick-install mechanism (9) comprises a U-shaped groove (91), wherein the U-shaped groove (91) is provided inside one of the support seats (7), and two springs (92) are fixedly connected to the top and bottom surfaces inside the U-shaped groove (91) and are distributed in parallel, and one end of the two springs (92) located at the same level and away from the U-shaped groove (91) is fixedly connected to the same moving plate (93), and an insert block (94) is fixedly connected to the top surface of the moving plate (93), and a rotating shaft (95) is rotatably connected between the two side walls inside the U-shaped groove (91), and a rotating plate (96) is fixedly connected to the outer surface of the rotating shaft (95), and an outer wall on one side of the rotating shaft (95) rotatably penetrates an outer wall on one side of the support seats (7) and is coaxially fixedly connected to a screw wheel (97).

2. A high-precision steel wire cold drawing device according to claim 1, characterized in that: Two parallel mounting plates (11) are fixedly connected to the outer wall of one side of the rail vehicle (6); two parallel sliding rods (12) are fixedly connected between a section of the outer wall adjacent to the two mounting plates (11); two symmetrically distributed clamps (13) are slidably connected to the outer surfaces of the two sliding rods (12); and a pushing cylinder (14) is fixedly connected to the outer walls at opposite ends of the two mounting plates (11); the output end of each pushing cylinder (14) slides through the corresponding mounting plate (11) and is fixedly connected to the outer wall at one end of the corresponding clamp (13).

3. A high-precision steel wire cold drawing device according to claim 2, characterized in that: A movable groove (16) is provided on the other side of the top surface of the rail vehicle (6), a hook plate (17) is rotatably connected between the two end walls inside the movable groove (16), a T-shaped rod (18) is fixedly connected to the top surface of the rail vehicle (6) corresponding to the movable groove (16), and a telescopic cylinder (19) is hingedly connected between the outer wall of one side of the vertical section of the T-shaped rod (18) and the top surface of the hook plate (17).

4. A high-precision steel wire cold drawing device according to claim 3, characterized in that: The top surface of one of the support seats (7) is fixedly connected to two parallel vertical plates (20), and a winding roller (21) is rotatably connected between the outer walls of the two adjacent ends of the two vertical plates (20). A steel wire rope (22) is wound around the outer surface of the winding roller (21), and one end of the steel wire rope (22) is fixedly connected to the outer wall of one side of the rail vehicle (6).

5. A high-precision steel wire cold drawing device according to claim 4, characterized in that: Two symmetrically distributed wind tubes (15) are hingedly connected to one side of the top surface of the rail vehicle (6); a cavity is provided at the bottom of the rail vehicle (6) and a rotatable sprocket wheel (23) is installed in the cavity.

6. A high-precision steel wire cold drawing device according to claim 4, characterized in that: A reduction motor for rotating the driving sprocket (2) is fixedly connected to the outer wall of one end of the frame (1), and a slot matching the insert block (94) is provided on the top and bottom surfaces of the cavity mold (10).

7. A high-precision steel wire cold drawing device according to claim 5, characterized in that: A servo motor for rotating the winding roller (21) is fixedly connected to the outer wall of one end of one of the vertical plates (20), and the sprocket wheel (23) is pressed on the chain (4) and meshed with it.

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