Multi-working-condition rotary wire drawing device

Abstract

The utility model discloses a multi-working-condition rotary wire drawing device which comprises a first belt pulley, a second belt pulley, a bottom plate and a driving motor, wherein the first belt pulley and the second belt pulley are connected through a belt; the bottom plate is provided with an L-shaped plate and a support frame; the driving motor is arranged at the upper end of the L-shaped plate; the first belt wheel is fixedly arranged on the outer wall of a hollow pipe in a sleeving mode, the lower end of the hollow pipe penetrates through the supporting frame and is rotationally connected with the supporting frame, and a spiral groove extending upwards is formed in the inner wall of the hollow pipe; a reciprocating lead screw is fixedly installed on an output shaft of the driving motor, and the lower end of the reciprocating lead screw penetrates through the axis of the hollow pipe and is rotationally connected with the bottom plate. The wire-drawing die of the device performs two-way alternate rotary motion during working, so that the stress of a metal wire in the die is more uniform, the stress is prevented from being excessively concentrated in a specific area, the possibility of breakage of the metal wire is reduced, the production efficiency and the product quality are improved, and meanwhile, the device can adapt to various working conditions.

Description

Technical Field

[0001] The utility model relates to the technical field of wire drawing dies, and particularly relates to a multi-condition rotary wire drawing device. Background Art

[0002] A wire drawing die is a tool for stretching metal wire (bar) materials. In metal pressure processing, a tool that forces metal to pass through a die under external force, compresses the cross-sectional area of the metal, and obtains the required cross-sectional area shape and size is called a wire drawing die.

[0003] The existing wire drawing die is generally fixedly installed on a rotating seat, and the rotating seat is driven by a motor. When wire drawing, the rotating seat rotates unidirectionally (i.e., rotates in one rotating direction) driven by the motor. In the actual use process, it is found that there are some problems with the existing wire drawing die:

[0004] First: Unidirectional rotation easily causes the stress distribution of the copper wire in the die to be uneven. Long-term unidirectional rotation may cause the copper wire to be excessively worn or stressed at specific areas, thereby increasing the risk of copper wire breakage;

[0005] Second: There are two common wire drawing conditions for the existing wire drawing die, one is horizontal wire drawing, and the other is vertical wire drawing. Since the position of the existing wire drawing die is fixed, it generally only adapts to one wire drawing condition, resulting in limited use range;

[0006] Therefore, this application provides a multi-condition rotary wire drawing device to meet the requirements. Content of the Utility Model

[0007] The purpose of this application is to provide a multi-condition rotary wire drawing device, which is used to solve the technical problems of easy increase in copper wire breakage caused by unidirectional rotation of the wire drawing die and limited use range of the wire drawing die.

[0008] To achieve the above purpose, this application provides the following technical solution: A multi-condition rotary wire drawing device includes a first pulley and a second pulley connected by a belt, a bottom plate installed with an L-shaped plate and a support frame, and a driving motor installed at the upper end of the L-shaped plate;

[0009] The first pulley is fixedly sleeved on the outer wall of a hollow tube. The lower end of the hollow tube penetrates through the support frame and is rotatably connected to the support frame. A spiral groove extending upward is arranged on the inner wall of the hollow tube;

[0010] A reciprocating lead screw is fixedly installed on the output shaft of the drive motor, and the lower end of the reciprocating lead screw passes through the axis of the hollow tube and is rotatably connected to the bottom plate. A matching moving nut is threadedly sleeved on the reciprocating lead screw. A sliding column is installed on the outer wall of the moving nut, and the end of the sliding column is located in the inner cavity of the spiral groove. The moving nut is slidably penetrated by a limiting rod, and both ends of the limiting rod are fixedly connected to the L-shaped plate and the support frame respectively;

[0011] The second pulley is fixedly sleeved on the rotating shaft. A wire drawing die is detachably installed in the groove at the upper end of the rotating shaft. A through hole is provided at the axis of the rotating shaft, and the axis of the through hole is consistent with the axis of the wire drawing hole of the wire drawing die;

[0012] It further includes a hollow rod fixedly installed on the side end of the bottom plate. Cross arms with openings are installed at both the upper and lower ends of the hollow rod. Guide wheels are rotatably arranged at the ends of the two cross arms, and the two guide wheels are respectively located on both sides of the vertical axis of the wire drawing hole on the wire drawing die.

[0013] As a preferred implementation manner in this embodiment, the two cross arms are arranged in an L-shaped structure, and one ends of the two cross arms are slidably arranged in the inner cavity of the hollow rod;

[0014] Two lead screws with worm wheels at their ends are rotatably arranged in the inner cavity of the hollow rod. The ends of the two lead screws are respectively located in the inner cavities of the corresponding cross arms and are threadedly connected. The two worm wheels are meshed with a worm rotatably arranged on the corresponding hollow rod.

[0015] As a preferred implementation manner in this embodiment, a magnetic block is provided in the groove at the upper end of the rotating shaft, and two bayonets are oppositely arranged at the upper end of the rotating shaft;

[0016] Two card strips are oppositely arranged on the outer wall of the wire drawing die.

[0017] As a preferred implementation manner in this embodiment, ejector rods are provided on the outer walls of the two card strips.

[0018] As a preferred implementation manner in this embodiment, a rotating ring is rotatably arranged on the outer wall of the sliding column, and the outer wall of the rotating ring is in sliding contact with the inner wall of the spiral groove.

[0019] In summary, the technical effects and advantages of the present utility model:

[0020] The structure of the utility model is reasonable. When the wire drawing die of the device works, it makes a two-way alternating rotational movement, which can make the force on the wire more uniform in the die, avoid excessive stress concentration in a specific area, which helps to reduce the possibility of wire breakage, improve production efficiency and product quality. Through the two-way alternating rotation, the wear of the wire drawing die will be more uniform, avoiding excessive wear in a single direction, which helps to extend the service life of the die, reduce the frequency and cost of replacing the die. At the same time, the device can adapt to a variety of working conditions. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the drawings in the following description are only some embodiments of the present application. For those skilled in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0022] Figure 1 It is a schematic diagram of the overall and partial enlarged structure of the utility model;

[0023] Figure 2 is Figure 1 a schematic diagram of the cross-section of the hollow tube and its partial enlarged structure;

[0024] Figure 3 is Figure 1 a schematic diagram of the partial cross-section of the hollow rod in ;

[0025] Figure 4 is a schematic diagram of longitudinal wire drawing;

[0026] Figure 5 is a schematic diagram of transverse wire drawing.

[0027] In the figure: 1, bottom plate; 2, L-shaped plate; 3, first pulley; 4, second pulley; 5, rotating shaft; 6, driving motor; 7, reciprocating lead screw; 8, hollow tube; 9, limiting rod; 10, support frame; 11, wire drawing die; 111, clamping strip; 112, ejector rod; 12, spiral groove; 13, moving nut; 14, sliding column; 15, rotating ring; 16, cross arm; 17, opening; 18, guide wheel; 19, hollow rod; 20, screw; 21, worm gear; 22, worm. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0028] The following will clearly and completely describe the technical solutions in the embodiments of the present utility model with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only some, not all, of the embodiments of the present utility model. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts fall within the protection scope of the present utility model.

[0029] Example: Refer to Figures 1-3 A multi-condition rotary wire drawing device as shown, which includes a first pulley 3 and a second pulley 4 connected by a belt, a bottom plate 1 installed with an L-shaped plate 2 and a support frame 10, and a driving motor 6 installed at the upper end of the L-shaped plate 2;

[0030] The first pulley 3 is fixedly sleeved on the outer wall of the hollow tube 8. The lower end of the hollow tube 8 penetrates through the support frame 10 and is rotatably connected to the support frame 10. A spiral groove 12 extending upward is provided on the inner wall of the hollow tube 8;

[0031] A reciprocating lead screw 7 is fixedly installed on the output shaft of the driving motor 6. The lower end of the reciprocating lead screw 7 passes through the axis of the hollow tube 8 and is rotatably connected to the bottom plate 1. A matching moving nut 13 is threadedly sleeved on the reciprocating lead screw 7. A sliding column 14 is installed on the outer wall of the moving nut 13, and the end of the sliding column 14 is located in the inner cavity of the spiral groove 12. The moving nut 13 is slidably penetrated by a limiting rod 9. The two ends of the limiting rod 9 are respectively fixedly connected to the L-shaped plate 2 and the support frame 10;

[0032] The second pulley 4 is fixedly sleeved on the rotating shaft 5. A wire drawing die 11 is detachably installed in the groove at the upper end of the rotating shaft 5. A through hole is provided at the axis of the rotating shaft 5, and the axis of the through hole is consistent with the axis of the wire drawing hole of the wire drawing die 11;

[0033] It further includes a hollow rod 19 fixedly installed at the side end of the bottom plate 1. Cross arms 16 with openings 17 are installed at both the upper and lower ends of the hollow rod 19. Guide wheels 18 are rotatably provided at the ends of the two cross arms 16, and the two guide wheels 18 are respectively located on both sides of the vertical axis of the wire drawing hole on the wire drawing die 11.

[0034] During operation, the metal wire sequentially passes through the wire drawing die 11 and the through hole. When the metal wire moves and the driving motor 6 works, it drives the moving nut 13 to make a reciprocating linear motion up and down on the reciprocating lead screw 7. When the moving nut 13 moves upward, it drives the first pulley 3 to rotate counterclockwise by squeezing the upper wall of the spiral groove 12 through the sliding column 14, and cooperates with the belt to drive the second pulley 4 to rotate clockwise. When the moving nut 13 moves downward, it drives the first pulley 3 to rotate clockwise by squeezing the lower wall of the spiral groove 12 through the sliding column 14, and cooperates with the belt to drive the second pulley 4 to rotate counterclockwise. Finally, it drives the wire drawing die 11 to make a bidirectional alternating rotation motion. The bidirectional alternating rotation of the wire drawing die 11 can make the stress on the metal wire in the die more uniform, avoid excessive stress concentration in a specific area, which helps to reduce the possibility of metal wire breakage, improve production efficiency and product quality. Through the bidirectional alternating rotation, the wear of the wire drawing die will be more uniform, avoiding excessive wear in a single direction, which helps to extend the service life of the die, reduce the frequency and cost of replacing the die;

[0035] By setting the upper and lower guide wheels 18, the device can be adapted to both horizontal wire drawing and vertical wire drawing. For reference, see Figure 4 (vertical wire drawing) and Figure 5 (horizontal wire drawing).

[0036] It should be noted that: when wire drawing, it is necessary to ensure that the wire vertically passes through the wire drawing hole and the through hole.

[0037] As a preferred implementation in this embodiment, as Figure 3 shown, the two cross arms 16 are provided with an L-shaped structure, and one end of each of the two cross arms 16 is slidably arranged in the inner cavity of the hollow rod 19;

[0038] Two screws 20 with worm wheels 21 at their ends are rotatably arranged in the inner cavity of the hollow rod 19. The ends of the two screws 20 are respectively located in the inner cavities of the corresponding cross arms 16 and are threadedly connected. The two worm wheels 21 are meshed and connected with the worm 22 rotatably arranged on the hollow rod 19.

[0039] By rotating the worm 22, the worm wheel 21 can drive the screw 20 to rotate, and the height of the cross arm 16 can be adjusted according to actual needs.

[0040] As a preferred implementation in this embodiment, as Figure 1 shown, a magnetic block is provided in the upper groove of the rotating shaft 5, and two clamping slots are oppositely arranged at the upper end of the rotating shaft 5;

[0041] Two clamping bars 111 are oppositely arranged on the outer wall of the wire drawing die 11.

[0042] Through the cooperation of the two clamping bars 111 and the two clamping slots, the wire drawing die 11 is installed in the groove of the rotating shaft 5 to limit the self-rotation of the wire drawing die 11. Through the magnetic force between the magnetic block and the wire drawing die, the movement of the wire drawing die in the vertical direction is prevented, which is beneficial to the stable installation of the wire drawing die 11 in the groove. When the wire drawing die needs to be removed from the groove, the wire drawing die 11 can be taken out of the groove by pinching the outer walls of the two clamping bars 111 with two fingers, which is convenient for the disassembly and assembly of the wire drawing die 11.

[0043] As a preferred implementation in this embodiment, as Figure 1 shown, ejector rods 112 are provided on the outer walls of the two clamping bars 111.

[0044] Two fingers of one hand can be respectively placed below the corresponding ejector rods 112 and made to contact the lower ends of the ejector rods 112. The wire drawing die 11 can be moved out of the groove by moving the fingers upward, which is more conducive to the removal of the wire drawing die 11.

[0045] As a preferred implementation in this embodiment, as Figure 2As shown, a rotating ring 15 is rotatably provided on the outer wall of the sliding column 14, and the outer wall of the rotating ring 15 is in sliding contact with the inner wall of the spiral groove 12.

[0046] The friction between the sliding column 14 and the inner wall of the spiral groove 12 can be reduced, and the service life of the sliding column 14 can be extended.

[0047] 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 modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A multi-working-mode rotary wire drawing device, characterized in that: It comprises a first pulley (3) and a second pulley (4) connected by a belt, a base plate (1) mounted with an L-shaped plate (2), a support frame (10), and a driving motor (6) mounted on the upper end of the L-shaped plate (2); The first pulley (3) is fixedly sleeved on the outer wall of the hollow tube (8); the lower end of the hollow tube (8) passes through the support frame (10) and is rotatably connected to the support frame (10); and the inner wall of the hollow tube (8) is provided with a spiral groove (12) extending upward; A reciprocating screw rod (7) is fixedly mounted on the output shaft of the driving motor (6), and the lower end of the reciprocating screw rod (7) passes through the axis of the hollow tube (8) and is rotatably connected to the base plate (1), a matching moving nut (13) is threadedly sleeved on the reciprocating screw rod (7), a sliding column (14) is mounted on the outer wall of the moving nut (13), and the end of the sliding column (14) is located in the inner cavity of the spiral groove (12), the moving nut (13) is slidably penetrated by a limiting rod (9), and the two ends of the limiting rod (9) are respectively fixedly connected to the L-shaped plate (2) and the support frame (10); The second pulley (4) is fixedly sleeved on the rotating shaft (5), a wire drawing die (11) is detachably mounted in a groove at the upper end of the rotating shaft (5), a through hole is provided at the axis of the rotating shaft (5), and the axis of the through hole is consistent with the axis of the wire drawing hole of the wire drawing die (11); It also includes a hollow rod (19) fixedly mounted on the side end of the base plate (1), wherein the upper and lower ends of the hollow rod (19) are both mounted with a cross arm (16) with an opening (17), and guide wheels (18) are rotatably mounted on the ends of the two cross arms (16), and the two guide wheels (18) are respectively located on both sides of the vertical axis of the drawing hole on the drawing die (11).

2. The multi-mode rotary wire drawing device according to claim 1, characterized in that: The two cross arms (16) are provided with an L-shaped structure, and one end of the two cross arms (16) is slidably disposed in the inner cavity of the hollow rod (19); The inner cavity of the hollow rod (19) is rotatably provided with two screw rods (20) with worm wheels (21) at the ends, the ends of the two screw rods (20) are respectively located in the inner cavities corresponding to the cross arms (16) and are threadedly connected, and the two worm wheels (21) are meshingly connected with the worm rods (22) rotatably provided on the hollow rod (19) in correspondence.

3. The multi-working-mode rotary wire drawing device according to claim 1, characterized in that: A magnetic block is arranged in the groove at the upper end of the rotating shaft (5), and two bayonet holes are arranged opposite to each other at the upper end of the rotating shaft (5); Two clamping strips (111) are arranged opposite to each other on the outer wall of the wire drawing die (11).

4. The multi-mode rotary wire drawing device according to claim 3, characterized in that: A push rod (112) is provided on the outer walls of the two clamping strips (111).

5. The multi-mode rotary wire drawing device according to claim 1, characterized in that: A rotating ring (15) is rotatably arranged on the outer side of the sliding column (14), and the outer wall of the rotating ring (15) is in sliding contact with the inner wall of the spiral groove (12).

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