A double-headed wire drawing machine

Abstract

The present invention discloses a double-headed wire drawing machine, which includes a base. A wire drawing box and an automatically lifting box door are fixed on the base. The wire drawing box has a notch to be closed. The automatically lifting box door includes columns, lifting members, vertical guiding grooves, transmission guiding arms, front-back telescopic mechanisms, and lifting mechanisms. The lifting members are slidably arranged on the columns, the vertical guiding grooves are slidably arranged on both sides of the columns, the cover plate is movably connected to the columns through the lifting members, and the transmission guiding arms are arranged on both sides of the cover plate. The upper ends thereof are hinged to the cover plate, and the lower ends are connected with rotating members that can slide up and down in the vertical guiding grooves. The front-back telescopic mechanisms are fixed on both sides of the columns, and the lifting mechanisms are respectively fixed on the base and the columns. The present invention adopts a box door that can be automatically lifted and retracted, which not only makes it easier to open the box door of the wire drawing box, but also can automatically retract the lower end after rising, solving the technical problems of the existing box door structure being complex, inconvenient to open, long opening time, and wire drawing oil being likely to fall on maintenance personnel.

Description

Technical Field

[0001] The present invention relates to the technical field of wire drawing, and particularly to a double-headed wire drawing machine. Background Art

[0002] A metal wire drawing machine belongs to pre-processing equipment for the production of metal products such as standard parts. Its purpose is to subject metal bars to wire drawing treatment by the wire drawing machine, so that the diameter, roundness, internal metallographic structure, surface finish and straightness of the bars all meet the raw material treatment requirements for the production of metal products such as standard parts.

[0003] The working principle of a metal wire drawing machine is mainly to use a wire drawing drum to draw a bar into a wire of the required specification. Among them, the wire drawing drum is usually immersed in a wire drawing box filled with wire drawing oil, and the lubrication and cooling of the wire drawing drum can be achieved through the wire drawing oil. To facilitate the installation and maintenance of the equipment and prevent foreign objects from entering the wire drawing box, a switchable box door is usually provided on the wire drawing box. For example, the patent document with the publication number CN203578414U discloses a single-drive aluminum alloy wire drawing machine, which includes a plurality of wire drawing boxes, a constant-speed wheel and a plurality of wire drawing drums located in the wire drawing box. The constant-speed wheel is connected to a constant-speed motor, and each wire drawing drum is separately connected to a wire drawing motor. A speed reducer is provided between the wire drawing motor and the wire drawing drum, and a tension control device is provided between adjacent wire drawing drums. Wire drawing oil is provided in the wire drawing box, and the lower half of the wire drawing drum is immersed in the wire drawing oil. The wire drawing box is of a two-layer structure, the inner layer includes two doors, and the outer layer is a rolling shutter door. Although the box door with this structure can achieve the installation and maintenance of the equipment and prevent foreign objects from entering, it is found through actual application that it still has the following technical problems:

[0004] 1. Since the box door has a complex and relatively heavy structure, there are technical problems in the actual application that the box door is inconvenient to open and the opening time is relatively long.

[0005] 2. Because the box door is stained with wire drawing oil, when the box door needs to be opened for maintenance, for example, after opening the rolling shutter door, the wire drawing oil on the box door will directly fall on the maintenance personnel and cause pollution, which is extremely unfavorable to the maintenance personnel. And if the adhesion of wire drawing oil is to be avoided, it is not conducive to the maintenance personnel to carry out maintenance and will affect the maintenance efficiency.

[0006] 3. The sealing effect of the box door is relatively poor, which easily causes the wire drawing oil to seep out from the closed part. And in actual use, only the lower half of the wire drawing drum can be immersed in the wire drawing oil, and its lubrication effect is still insufficient. Summary of the Invention

[0007] The object of the present invention is to overcome the above-mentioned technical problems existing in the prior art, and a double-headed wire drawing machine is provided. The present invention adopts a box door with a relatively simple structure that can be automatically lifted and retracted, which not only makes it easier to open the box door of the wire drawing box, but also can automatically retract the lower end after rising to prevent wire drawing oil from dripping onto maintenance personnel, thus effectively solving the technical problems of the existing box door with complex structure, inconvenient opening, long opening time, and easy falling of wire drawing oil onto maintenance personnel after opening the box door and causing pollution.

[0008] To achieve the above object, the technical solution adopted by the present invention is as follows:

[0009] A double-headed wire drawing machine, characterized in that: it includes a base, a wire drawing box and an automatically lifting box door are fixed on the base, a to-be-closed notch is provided on the front side of the wire drawing box, and a wire drawing drum driven by a wire drawing motor is arranged in the wire drawing box;

[0010] The automatically lifting box door includes columns, lifting members, vertical guiding grooves, transmission guiding arms, front-back telescopic mechanisms, lifting mechanisms and a cover plate adapted to the to-be-closed notch. The columns are symmetrically fixed on the base, the lifting members are respectively slidably arranged on the columns, the vertical guiding grooves are movably arranged on both sides of the columns through guide rails, the cover plate is movably connected to the columns through the lifting members and is located between the vertical guiding grooves, the transmission guiding arms are respectively arranged on both sides of the cover plate, the upper ends of the transmission guiding arms are hinged to the cover plate, and the lower ends are connected with rotating members that can slide up and down in the vertical guiding grooves. The front-back telescopic mechanisms are symmetrically fixed on both sides of the columns through the base and are used to control the front-back sliding of the vertical guiding grooves, and the lifting mechanisms are respectively fixed on the base and the columns and are used to control the up and down sliding of the lifting members;

[0011] When the front-back telescopic mechanism controls the vertical guiding groove to slide backward, the lower part of the cover plate contracts backward; when the front-back telescopic mechanism controls the vertical guiding groove to slide forward until the transmission guiding arm is vertically downward, the lifting mechanism can control the up and down lifting of the cover plate through the lifting member.

[0012] The to-be-closed notch is U-shaped, the cover plate includes an outer cover plate fixed integrally and an inner cover plate adapted to the to-be-closed notch, and the upper end of the transmission guiding arm is hinged to the upper part of the inner cover plate.

[0013] A U-shaped sealing gasket extending from the bottom surface to both side surfaces is fixed at the lower end of the inner cover plate.

[0014] The outer surface of the outer cover plate has a concavo-convex structure.

[0015] The lifting member includes an inclined arm, one end of the inclined arm is slidably arranged on the column and is connected to the lifting mechanism, the other end of the inclined arm is fixed with symmetric bearings through a connecting shaft, and a fixing block for connecting with the cover plate is fixed on the bearings.

[0016] The upper part of the cover plate is provided with an L-shaped step, and the cover plate is connected to the fixed block through the vertical surface of the L-shaped step.

[0017] The rotating member includes a deep groove ball bearing, a rotating shaft, a washer and a locking nut. The deep groove ball bearing is slidably arranged in the vertical guide groove. The locking nut and the deep groove ball bearing are respectively fixed at both ends of the rotating shaft. The washer is movably sleeved on the rotating shaft. The transmission guide arm is movably sleeved between the locking nut and the washer through the rotating shaft.

[0018] The rotating member is a spherical structure or a hemispherical structure. One side of it is movably connected to the transmission guide arm, and the other side can slide in the vertical guide groove.

[0019] The lifting mechanism includes a lifting motor, a first gearbox, a transmission shaft, a second gearbox and a transmission screw. The second gearbox is respectively fixed at the lower part of the column. The transmission screws are respectively arranged vertically in the column. The lower end of the transmission screw is connected to the second gearbox, and the upper end is threadedly connected to the lifting member. The lifting motor is fixed between the columns through a base and is connected to the second gearbox through the first gearbox and the transmission shaft. The lifting motor can drive the transmission screw to rotate simultaneously through the first gearbox, the transmission shaft and the second gearbox.

[0020] The advantages of adopting the present invention are as follows:

[0021] 1. An automatic lifting box door for opening or closing the closing gap of the wire drawing box is provided on the base of the wire drawing machine in the present invention. Among them, a box door automatic lifting device is formed by the cooperation of the column, the lifting member, the vertical guide groove, the transmission guide arm, the front and rear telescopic mechanism and the lifting mechanism. When the front and rear telescopic mechanism controls the vertical guide groove to slide forward until the transmission guide arm is perpendicular downward, the lifting mechanism can control the cover plate to move up and down through the lifting member to realize the opening and closing of the closing gap to be closed, and when the front and rear telescopic mechanism controls the vertical guide groove to slide backward, the lower part of the cover plate can be retracted backward. Based on this, not only the automatic lifting of the cover plate is realized, but also the lower end can be automatically retracted after rising to avoid the wire drawing oil dripping on the maintenance personnel, which not only makes the opening of the cover plate more convenient, but also shortens the opening time of the cover plate, and at the same time has the advantage of simple structure. In addition, after adopting the specific box door lifting device in the present invention, it is also beneficial to improve the sealing effect of the box door, which can effectively prevent the wire drawing oil from leaking out from the connection between the box door and the wire drawing box, and is beneficial to completely immerse the wire drawing drum and the die holder in the wire drawing box in the wire drawing oil

[0022] 2. The present invention adopts an inner and outer double-layer cover plate, and the inner cover plate is adapted to the closing gap to be closed, which is beneficial to improving the structural strength of the cover plate and the closing effect of the wire drawing box.

[0023] 3. The U-shaped sealing gasket in the present invention is beneficial to further improving the sealing effect after the cover plate is closed.

[0024] 4. The outer cover plate of the present invention is set as a concave-convex structure, which is beneficial to improving the structural strength of the cover plate and endowing it with higher compressive performance.

[0025] 5. The present invention combines an inclined arm, a connecting shaft, a bearing and a fixing block to form a lifting block, which can not only stably fix a relatively large cover plate on the column, but also does not affect the flexible contraction when the lower part of the cover plate moves backward.

[0026] 6. The L-shaped step of the present invention is beneficial to improving the connection stability between the cover plate and the lifting member.

[0027] 7. The rotating member of the present invention is composed of a deep groove ball bearing, a rotating shaft, a washer and a locking nut, which is beneficial to realizing the flexible control of the up-and-down lifting and front-and-back telescoping of the cover plate, and at the same time has the advantages of simple structure and simple operation.

[0028] 8. The rotating member of the present invention is set as a spherical structure or a hemispherical structure, which is not only beneficial to the flexible control of the up-and-down lifting and front-and-back telescoping of the cover plate, but also has the advantage of simple structure.

[0029] 9. The present invention adopts a lifting motor, a first gear box, a transmission shaft, a second gear box and a transmission screw as a lifting mechanism, which can drive two transmission screws by using a set of motors, and has the advantages of simplified structure, low cost and consistent transmission. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 is a schematic top-plan structure view of the present invention;

[0031] Figure 2 is a schematic side-plan structure view of the present invention;

[0032] Figure 3 is a schematic front-plan structure view of the present invention;

[0033] Figure 4 is Figure 3 the A-A cross-sectional structure view of

[0034] Figure 5 is a schematic three-dimensional structure view of the present invention;

[0035] Figure 6 is a schematic three-dimensional structure view of an automatic lifting box door;

[0036] Figure 7 is Figure 6 the enlarged view of I in

[0037] Figure 8 is a schematic plan structure view of the lifting mechanism assembled on the column;

[0038] Figure 9 is Figure 8Schematic diagram of the three-dimensional structure;

[0039] Figure 10 Schematic diagram of the three-dimensional structure of the cover plate;

[0040] Figure 11 Schematic diagram of the vertical guide groove assembled on the front and rear telescopic mechanism;

[0041] Figure 12 Schematic diagram of the planar structure of the rotating part.

[0042] The labels in the figure are: 1, column; 2, lifting part; 3, vertical guide groove; 4, guide rail; 5, transmission guide arm; 6, front and rear telescopic mechanism; 7, lifting mechanism; 8, inclined arm; 9, fixed block; 10, L-shaped step; 11, outer cover plate; 12, inner cover plate; 13, U-shaped gasket; 14, deep groove ball bearing; 15, rotating shaft; 16, washer; 17, locking nut; 18, lifting motor; 19, first gearbox; 20, transmission shaft; 21, second gearbox; 22, transmission screw; 23, rotating part; 24, base; 25, wire drawing box; 26, gap to be closed; 27, wire drawing drum; 28, wire drawing motor; 29, automatically lifting box door. Detailed implementation mode

[0043] The present invention provides a double-headed wire drawing machine, which has the function of automatically lifting the door of the wire drawing box 25. As Figures 1-12 shown, it includes a base 24, on which a wire drawing box 25 and an automatically lifting box door 29 are fixed. The front side of the wire drawing box 25 has a gap 26 to be closed, which is generally U-shaped. A wire drawing drum 27 driven by a wire drawing motor 28 is arranged in the wire drawing box 25.

[0044] The automatically lifting box door 29 includes columns 1, lifting parts 2, vertical guide grooves 3, transmission guide arms 5, front and rear telescopic mechanisms 6, lifting mechanisms 7 and a cover plate adapted to the gap 26 to be closed. Among them,

[0045] The number of columns 1 is preferably two, symmetrically fixed on the base 24 and located at the rear side of the wire drawing box 25.

[0046] The number of lifting parts 2 is adapted to the number of columns 1, and they are respectively slidably arranged on the columns 1, that is, the lifting parts 2 can slide on the columns 1.

[0047] The number of vertical guide grooves 3 is two, and they are respectively movably arranged on both sides of the columns 1 through guide rails 4, and their structures are similar to concave shapes.

[0048] The upper part of the cover plate is movably connected to the column 1 through a lifting member 2 and is located between the vertical guiding grooves 3. The shape of the cover plate is adapted to the structure of the opening of the box to be closed. Since the notch 26 to be closed is generally U-shaped, there is also a corresponding U-shaped structure on the cover plate to effectively block the notch.

[0049] There are two driving guiding arms 5, which are respectively arranged on both sides of the cover plate; the driving guiding arm 5 is a strip-shaped structure, its upper end is hinged to the cover plate, and the lower end is connected with a rotating member 23 that can slide up and down in the vertical guiding groove 3. Since the rotating member 23 can slide in the vertical guiding groove 3, and both ends of the driving guiding arm 5 are movably connected to the cover plate and the rotating member 23 respectively, by moving the tight guiding groove back and forth on the guide rail 4, the lower part of the cover plate can be controlled to contract backward or expand forward through the rotating member 23 and the driving guiding arm 5.

[0050] The front-back telescopic mechanism 6 is symmetrically fixed on both sides of the column 1 and is used to control the front-back sliding of the vertical guiding groove 3 on the guide rail 4. Specifically, a telescopic cylinder can be used, which is mainly used to control the telescoping of the lower part of the cover plate.

[0051] The lifting mechanism 7 is fixed on the column 1 and is used to control the up-and-down sliding of the lifting member 2, and further control the up-and-down lifting of the cover plate to realize the opening and closing of the box door.

[0052] Take Figure 6 、 7 the direction shown as an example. When the front-back telescopic mechanism 6 controls the vertical guiding groove 3 to slide backward, the lower part of the cover plate will contract backward. Specifically, since the upper part of the cover plate is movably connected to the lifting member 2, when the front-back telescopic mechanism 6 controls the vertical guiding groove 3 to slide backward, the lower part of the cover plate will rotate with the connection point between the cover plate and the lifting member 2 as the fulcrum, so as to realize the backward contraction of the lower part of the cover plate, so that the lower part of the opened cover plate is closer to the rear side, so as to avoid the wire drawing oil on the cover plate from falling on the maintenance personnel.

[0053] When the front-back telescopic mechanism 6 controls the vertical guiding groove 3 to slide forward until the driving guiding arm 5 is vertically downward, the lifting mechanism 7 can control the up-and-down lifting of the cover plate through the lifting member 2. Specifically, when the vertical guiding groove 3 slides forward until the driving guiding arm 5 is vertically downward, the axis of the driving guiding arm 5 is just parallel to the axis of the vertical guiding groove 3, and the axes of both are perpendicular to the horizontal plane. Also, since the rotating member 23 is slidably arranged in the tight guiding groove, at this time, the up-and-down lifting of the cover plate can be controlled through the lifting mechanism 7.

[0054] Preferably, the cover plate includes an outer cover plate 11 and an inner cover plate 12 fixed together. The outer surface of the outer cover plate 11 has a concavo-convex structure, which can enhance the structural strength of the cover plate. The inner cover plate 12 is adapted to the to-be-closed notch 26. Through the cooperation of the outer cover plate 11 and the inner cover plate 12, the wire drawing oil can be effectively blocked in the wire drawing box 25, so that the wire drawing lubrication is good. In addition, to improve the blocking effect of the cover plate on the fuel tank, the present invention also provides a U-shaped gasket 13 at the lower end of the inner cover plate 12, which is adapted to the to-be-closed notch 26. The U-shaped gasket 13 mainly extends from the bottom surface of the lower end of the inner cover plate 12 to both side surfaces, and the sealing performance between the cover plate and the blocking part can be enhanced through the U-shaped gasket 13.

[0055] Further, to better ensure the balance when the cover plate moves up and down, preferably, the upper end of the transmission guiding arm 5 is hinged to the upper part of the inner cover plate 12.

[0056] Preferably, the lifting member 2 includes an inclined arm 8. One end of the inclined arm 8 is slidably arranged on the column 1 and connected to the lifting mechanism 7. A connecting shaft is fixed at the other end of the inclined arm 8. Symmetrical bearings are fixed at both ends of the connecting shaft, and a fixing block 9 for connecting with the cover plate is fixed on the bearings.

[0057] Further, an L-shaped step 10 is provided on the upper part of the cover plate. The cover plate is connected to the fixing block 9 through the vertical surface of the L-shaped step 10. Specifically, bolts can be used for anchoring between the cover plate and the fixing block 9. Under the action of the symmetrical bearings, the cover plate can be stably fixed to the lifting member 2 without affecting the rotation of the cover plate.

[0058] To facilitate the up and down movement of the cover plate through the cooperation of the transmission guiding arm 5 and the rotating member 23, the present invention can adopt the following two structures of the rotating member 23:

[0059] The first type: The rotating member 23 includes a deep groove ball bearing 14, a rotating shaft 15, a washer 16 and a locking nut 17. The deep groove ball bearing slides in the vertical guiding groove 3. The locking nut 17 and the deep groove ball bearing 14 are respectively fixed at both ends of the rotating shaft 15. The washer 16 is movably sleeved on the rotating shaft 15. The transmission guiding arm 5 is movably sleeved between the locking nut 17 and the washer 16 through the rotating shaft 15.

[0060] The second type: The rotating member 23 is a spherical structure or a hemispherical structure, one side of which is movably connected to the transmission guiding arm 5, and the other side can slide in the vertical guiding groove 3.

[0061] The present invention preferably adopts the rotating member 23 of the first structure above, but the rotating member 23 of the second structure can also be adopted according to different requirements. The smooth up and down movement of the cover plate can be realized by adopting the above two rotating members 23.

[0062] Preferably, the lifting mechanism 7 includes a lifting motor 18, a first gearbox 19, a transmission shaft 20, second gearboxes 21 and transmission screws 22. Among them, the number of lifting motors 18 can be one, the number of first gearboxes 19 can be one set, the number of transmission shafts 20 can be two, the number of second gearboxes 21 can be two sets, and the number of transmission screws 22 can be two. The second gearboxes 21 are respectively fixed to the lower part of the column 1, the transmission screws 22 are respectively arranged vertically in the column 1, the lower ends of the transmission screws 22 are connected to the second gearboxes 21, and the upper ends are threadedly connected to the inclined arms 8 of the lifting member 2. The lifting motor 18 is fixed between the columns 1 through a base 24 and is connected to the second gearboxes 21 through the first gearbox 19 and the transmission shaft 20. The lifting motor 18 can drive the transmission screws 22 to rotate simultaneously through the first gearbox 19, the transmission shaft 20 and the second gearboxes 21. The lifting mechanism 7 of this structure is adopted in the present invention, and one set of motors can be used to realize the drive control of the two transmission screws 22, which has the advantages of simple structure and convenient control. Of course, the foregoing structure is preferred. In practical applications, a structure using two sets of motors or two sets of cylinders to control the lifting of the cover plate is also an equivalent structure.

[0063] The working principle of the present invention is as follows:

[0064] As Figure 5 shown, at this time, the wire drawing box 25 in the wire drawing machine is in an open state, and the lower part of the cover plate is in a contracted state. First, the vertical guide groove 3 is controlled to slide forward through the front and rear telescopic mechanism 6. The vertical guide groove 3 drives the lower end of the transmission guide arm 5 to move forward through the rotating member 23. When the transmission guide arm 5 moves forward to be vertically downward, the plate body of the cover plate is also just vertically downward at this time. Then, the lifting member 2 is controlled to move downward through the cooperation of the lifting motor 18, the first gearbox 19, the transmission shaft 20, the second gearboxes 21 and the transmission screws 22 in the lifting mechanism 7, so as to drive the cover plate to move downward and block the wire drawing box 25. After that, the wire drawing drum 27 and the die holder can be completely immersed in the wire drawing oil to carry out wire drawing, and the drawing lubrication effect is better.

[0065] When maintenance is required, reverse operation according to the above steps can make the wire drawing box 25 in an open state and the lower part of the cover plate in a contracted state. At this time, since the lower part of the cover plate retracts backward, the wire drawing oil on the cover plate will not fall on the maintenance personnel, which is not only convenient for maintenance but also improves environmental protection.

[0066] In addition, the present invention is equivalent to using a lead screw structure to control the lifting of the cover plate, which not only has the advantages of simple structure and convenient operation, but also has the advantages of stable lifting and fast opening speed.

[0067] The above are only specific embodiments of the present invention. Any feature disclosed in this specification, unless specifically described, can be replaced by other equivalent or similar-purpose alternative features; all the features disclosed, or all the steps in any method or process, except for mutually exclusive features and / or steps, can be combined in any manner.

Claims

1. A double-headed wire drawing machine, characterized in that: It includes a base (24), on which a wire-drawing box (25) and an automatically lifting box door (29) are fixed. The front side of the wire-drawing box (25) has an opening to be closed (26), and a wire-drawing drum (27) driven by a wire-drawing motor (28) is arranged in the wire-drawing box (25). The automatically lifting box door (29) includes columns (1), lifting members (2), vertical guide grooves (3), transmission guide arms (5), front-back telescopic mechanisms (6), lifting mechanisms (7), and a cover plate adapted to the opening to be closed (26). The columns (1) are symmetrically fixed on the base (24). The lifting members (2) are respectively slidably arranged on the columns (1). The vertical guide grooves (3) are movably arranged on both sides of the columns (1) through guide rails (4). The cover plate is movably connected to the columns (1) through the lifting members (2) and is located between the vertical guide grooves (3). The transmission guide arms (5) are respectively arranged on both sides of the cover plate. The upper ends of the transmission guide arms (5) are hinged to the cover plate, and the lower ends are connected with rotating members (23) that can slide up and down in the vertical guide grooves (3). The front-back telescopic mechanisms (6) are symmetrically fixed on both sides of the columns (1) through the base (24) for controlling the front-back sliding of the vertical guide grooves (3). The lifting mechanisms (7) are respectively fixed on the base (24) and the columns (1) for controlling the up-and-down sliding of the lifting members (2). When the front-back telescopic mechanism (6) controls the vertical guide groove (3) to slide backward, the lower part of the cover plate shrinks backward. When the front-back telescopic mechanism (6) controls the vertical guide groove (3) to slide forward until the transmission guide arm (5) is vertically downward, the lifting mechanism (7) can control the up-and-down lifting of the cover plate through the lifting member (2).

2. The double-headed wire drawing machine according to claim 1, characterized in that: The opening to be closed (26) is U-shaped. The cover plate includes an outer cover plate (11) fixed integrally and an inner cover plate (12) adapted to the opening to be closed (26). The upper ends of the transmission guide arms (5) are hinged to the upper part of the inner cover plate (12).

3. The double-headed wire drawing machine according to claim 2, characterized in that: A U-shaped sealing gasket (13) extending from the bottom surface to both side surfaces is fixed to the lower end of the inner cover plate (12).

4. The double-head wire drawing machine according to claim 2, characterized in that: The outer surface of the outer cover plate (11) has a concavo-convex structure.

5. A double-headed wire drawing machine according to any one of claims 1-4, characterized in that: The lifting member (2) includes an inclined arm (8). One end of the inclined arm (8) is slidably arranged on the column (1) and is connected to the lifting mechanism (7). The other end of the inclined arm (8) is fixed with symmetric bearings through a connecting shaft, and fixing blocks (9) for connecting with the cover plate are fixed on the bearings.

6. The double-head wire drawing machine according to claim 5, wherein: An L-shaped step (10) is arranged on the upper part of the cover plate. The cover plate is connected to the fixing block (9) through the vertical surface of the L-shaped step (10).

7. A double-headed wire drawing machine according to claim 1, characterized in that: The rotating member (23) includes a deep groove ball bearing (14), a rotating shaft (15), a washer (16), and a locking nut (17). The deep groove ball shaft is slidably arranged in the vertical guide groove (3). The locking nut (17) and the deep groove ball bearing (14) are respectively fixed at both ends of the rotating shaft (15). The washer (16) is movably sleeved on the rotating shaft (15). The transmission guide arm (5) is movably sleeved between the locking nut (17) and the washer (16) through the rotating shaft (15).

8. A double-headed wire drawing machine according to claim 1, characterized in that: The rotating member (23) has a spherical structure or a hemispherical structure, one side of which is movably connected to the transmission guide arm (5), and the other side can slide in the vertical guide groove (3).

9. The double-headed wire drawing machine according to claim 1, wherein: The lifting mechanism (7) includes a lifting motor (18), a first gearbox (19), a transmission shaft (20), a second gearbox (21) and a transmission screw (22). The second gearbox (21) is respectively fixed to the lower part of the column (1). The transmission screws (22) are respectively arranged vertically in the column (1). The lower end of the transmission screw (22) is connected to the second gearbox (21), and the upper end is threadedly connected to the lifting member (2). The lifting motor (18) is fixed between the columns (1) through a base (24), and is connected to the second gearbox (21) through the first gearbox (19) and the transmission shaft (20). The lifting motor (18) can simultaneously drive the transmission screw (22) to rotate through the first gearbox (19), the transmission shaft (20) and the second gearbox (21).

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