Wire twisting device for steel backing

Abstract

The invention relates to a steel backing twisting device which comprises a rotary table, a twisting mechanism is arranged on a twisting station on one side of the rotary table, the rotary table is connected with a rotating mechanism, a plurality of steel backing fixing mechanisms are arranged on the rotary table in the annular direction, each steel backing fixing mechanism comprises two vertical rods which are vertically arranged and matched with holes in a steel backing, and the bottom ends of the vertical rods are connected with a supporting seat. The supporting seat is connected with the adjusting mechanism to drive the two vertical rod seats to synchronously move towards each other or away from each other, the screwing mechanism comprises a support, the support is provided with a lifting driving part with the axis vertically arranged, the lifting driving part is connected with a lifting part, the lifting part is rotationally connected with a rotating shaft, and the rotating shaft is connected with a rotating driving mechanism arranged on the support. And a wire twisting plate is arranged at the bottom end of the rotating shaft and provided with an arc-shaped groove allowing an iron wire to penetrate through, the wire twisting device is high in applicability, and the working efficiency is improved.

Description

Technical Field

[0001] The invention relates to the technical field of steel back threading, in particular to a steel back threading device. Background Art

[0002] The statements herein merely provide background information related to the present invention and do not necessarily constitute prior art.

[0003] Steel back wire twisting requires that the iron wire be passed from bottom to top through the opening on the steel back and through multiple stacked steel backs, and then the two ends of the iron wire be rotated and wrapped around. The traditional steel back wire twisting method has the following problems: multiple stacked steel backs are manually positioned and fixed, and then the iron wire is rotated. This method increases labor costs. Another method is to fix multiple stacked steel backs with a clamp and then rotate the iron wire. However, when using this method, the clamp can only fix steel backs of one specification, and its applicability is poor. For different steel back models, a full set of clamps needs to be replaced, which takes a long time to replace and has low work efficiency, affecting production progress. Summary of the Invention

[0004] In view of the shortcomings of the prior art, the purpose of the present invention is to provide a steel back screwing device, which improves work efficiency and has strong applicability.

[0005] In order to achieve the above object, the present invention is implemented through the following technical solutions:

[0006] An embodiment of the present invention provides a wire screwing device for steel back, comprising a turntable, a wire screwing mechanism is provided at a wire screwing station on one side of the turntable, the turntable is connected to the rotating mechanism, a plurality of steel back fixing mechanisms are provided in a circumferential direction on the turntable, the steel back fixing mechanism comprises two vertically arranged vertical poles that match the openings on the steel back, the bottom ends of the vertical poles are connected to the support seats, the support seats are connected to the adjustment mechanism to drive the two vertical pole seats to move toward or away from each other synchronously, the wire screwing mechanism comprises a bracket, the bracket is provided with a lifting drive member with a vertical axis, the lifting drive member is connected to the lifting member, the lifting member is rotatably connected to the rotating shaft, the rotating shaft is connected to the rotating drive mechanism provided on the bracket, a wire screwing plate is provided at the bottom end of the rotating shaft, and the wire screwing plate is provided with an arc groove for the iron wire to pass through.

[0007] Optionally, a lifting mechanism is provided on the top of the bracket, the lifting part of the lifting mechanism is connected to the horizontal moving mechanism, the moving part of the horizontal moving mechanism is connected to the mounting plate, the lifting drive component is fixed on the mounting plate, and the lifting component is slidably connected to the mounting plate.

[0008] Optionally, the rotation drive mechanism uses a rotation drive member fixed to the mounting plate, the rotation drive member is connected to the rotating shaft through a belt transmission mechanism, and the rotating shaft is circumferentially connected to the driven pulley of the belt transmission mechanism so that the driven pulley can drive the rotating shaft to rotate while the rotating shaft can also move along its own axial direction.

[0009] Optionally, the lifting drive member adopts a cylinder, the cylinder body of the cylinder is fixedly connected to the mounting plate, the piston rod is connected to the lifting member through a connecting member, and the lifting member is rotatably connected to the rotating shaft through a bearing seat.

[0010] Optionally, the rotating mechanism includes a rotating driving member fixed to the base, the rotating driving member is connected to the gear, the gear is meshed with the ring gear, and the turntable is coaxially fixed to the upper surface of the ring gear.

[0011] Optionally, the turntable is provided with a radial motion mechanism, which is connected to the steel back fixing mechanism to drive the steel back fixing mechanism to move radially along the turntable.

[0012] Optionally, the radial motion mechanism includes a first active bevel gear rotatably connected to the center position of the turntable, the first active bevel gear is connected to the radial adjustment screw through a bevel gear transmission mechanism, the radial adjustment screw is connected to the radial movable seat, the radial movable seat is connected to the turntable in a radial sliding manner along the turntable, and the radial movable seat is connected to the steel back fixing mechanism.

[0013] Optionally, the first active bevel gear is connected to a gear shaft, the gear shaft is rotatably connected to the turntable, and a first handle is provided at the bottom end of the gear shaft.

[0014] Optionally, the adjustment mechanism includes a bidirectional screw, a support at the bottom end of the two uprights is connected to the bidirectional screw, the rotation of the bidirectional screw can drive the two uprights to move toward or away from each other, the support is connected to the turntable along the tangential sliding direction of the turntable, the bidirectional screw is connected to one end of the transmission shaft through a bevel gear transmission mechanism, the other end of the transmission shaft is connected to the second active bevel gear through a bevel gear transmission mechanism, and the second active bevel gear is rotatably connected to the gear box housing set on the turntable.

[0015] Optionally, the second active bevel gear is connected to the gear shaft, the gear shaft is rotatably connected to the gear box housing, and a second handle is provided at the top end of the gear shaft.

[0016] The beneficial effects of the present invention are as follows:

[0017] 1. The steel back screwing device of the present invention is provided with a steel back fixing mechanism. The steel back fixing mechanism is provided with two vertical poles matching the openings on the steel back. The bottom ends of the vertical poles are fixed on the support seat. When screwing, the stacked multiple steel backs are fixed by the vertical poles. No manual fixation is required, which saves labor costs. At the same time, the two vertical poles are connected to the adjustment mechanism. The adjustment mechanism can adjust the distance between the two vertical poles, thereby meeting the fixing requirements of steel backs of different specifications and improving the applicability of the screwing device. When replacing the steel back, it is only necessary to adjust the distance between the two vertical poles. The adjustment time is short, the work efficiency is high, and it will not affect the production progress.

[0018] 2. The steel back threading device of the present invention is provided with a turntable, which can transport multiple groups of stacked steel backs to the threading station in sequence. There is no need to manually carry multiple groups of steel backs to the threading station, which reduces labor intensity and improves work efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The accompanying drawings, which constitute a part of the present invention, are used to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute improper limitations on the present invention.

[0020] Figure 1 This is a schematic diagram of the overall structure of Example 1 of the present invention;

[0021] Figure 2 This is a schematic diagram of the overall structure of Example 1 of the present invention after omitting the screw-twisting mechanism;

[0022] Figure 3 This invention Figure 2 A top view of

[0023] Figure 4 This is a schematic diagram of the assembly of the steel back fixing mechanism, adjustment mechanism and radial motion mechanism of embodiment 1 of the present invention. Figure 1 ;

[0024] Figure 5 This is a schematic diagram of the assembly of the steel back fixing mechanism, adjustment mechanism and radial motion mechanism of embodiment 1 of the present invention. Figure 2 ;

[0025] Figure 6 is a schematic diagram of the rotary drive mechanism of Example 1 of the present invention;

[0026] Figure 7 This is a schematic diagram of the first upright pole or the second upright pole in embodiment 1 of the present invention;

[0027] Figure 8 This is a schematic diagram of a screw threading mechanism according to embodiment 1 of the present invention;

[0028] Figure 9 This is a top view of the screw thread plate according to embodiment 1 of the present invention;

[0029] Among them, 1. turntable, 2. base, 3. screw threading mechanism, 4. first vertical pole, 5. second vertical pole, 6. first support, 7. second support, 8. arc groove, 9. bidirectional screw, 10. bearing seat, 11. slide rail, 12. first shaft section, 13. second shaft section, 14. gear box housing, 15. second active bevel gear, 16. second handle, 17. support plate, 18. steel back, 19. vertical plate, 20. first active bevel gear, 21. radial adjustment screw, 22. radial movable seat, 23. slide rail, 24. first handle, 25. rotary drive motor, 26. gear, 27. gear ring, 28. tightening cylinder, 29. tightening block, 30. fixing block;

[0030] 3-1. Bracket, 3-2. Lifting mechanism, 3-3. Horizontal moving mechanism, 3-4. Mounting plate, 3-5. Lifting drive cylinder, 3-6. Connecting plate, 3-7. Lifting plate, 3-8. Bearing seat, 3-9. Rotating shaft, 3-10. Tension spring, 3-11. Rotating drive motor, 3-12. Driving pulley, 3-13. Driven pulley, 3-14. Bushing, 3-15. Bearing seat, 3-16. Threading plate, 3-17. Arc groove. DETAILED DESCRIPTION

[0031] Example 1

[0032] This embodiment provides a screw threading device for steel backing, such as Figure 1 As shown, it includes a turntable 1, which is connected to a rotary drive mechanism. The rotary drive mechanism can drive the turntable 1 to rotate around its own axis. In this embodiment, the turntable 1 is arranged above the base 2, and the rotary drive mechanism is installed on the base 2. A plurality of steel back fixing mechanisms are arranged along the circumferential direction at the edge of the turntable 1. The steel back fixing mechanism is used to fix the stacked multiple steel backs. In this embodiment, the plurality of steel back fixing mechanisms are evenly spaced along the circumferential direction of the turntable. Preferably, four steel back fixing mechanisms are provided, and adjacent steel back fixing mechanisms are arranged at 90° intervals.

[0033] The screw threading station on one side of the turntable is provided with a screw threading mechanism 3, which is fixed on the base 2. When the turntable 1 rotates, the corresponding steel back fixing mechanism can be moved to the screw threading station, so that the steel back carried by the steel back fixing mechanism can be screwed using the screw threading mechanism 3.

[0034] like Figure 2-Figure 5 As shown, the steel back fixing mechanism includes two vertical poles, namely a first vertical pole 4 and a second vertical pole 5, and the first vertical pole 4 and the second vertical pole 5 are both arranged vertically.

[0035] The first vertical rod 4 and the second vertical rod 5 match the two openings on the steel back. The first vertical rod 4 and the second vertical rod 5 can pass through the multiple stacked steel backs through the openings, thereby fixing the multiple stacked steel backs.

[0036] The bottom end of the first vertical pole 4 is connected to the first support 6 , and the bottom end of the second vertical pole 5 is connected to the second support 7 . The first vertical pole 4 is supported by the first support 6 , and the second vertical pole 5 is supported by the second support 7 .

[0037] Further, such as Figure 7 As shown, an arcuate groove 8 is provided at the inner opposite parts of the first upright pole 4 and the second upright pole 5 , and the arcuate groove 8 is used to accommodate the iron wire to be twisted.

[0038] The first support 6 and the second support 7 are connected to an adjustment mechanism, which can drive the first support 6 and the second support 7 to move toward or away from each other synchronously, thereby adjusting the distance between the first vertical pole 4 and the second vertical pole 5 to meet the fixing requirements of steel backs of different specifications.

[0039] The adjusting mechanism is installed on the radial motion mechanism, and the adjusting mechanism includes a bidirectional screw 9, which includes a first screw segment and a second screw segment with opposite rotation directions, wherein the first screw segment is connected to the first support 6, and the second screw segment is connected to the second support 7. Both ends of the bidirectional screw 9 are rotatably connected to the bearing seat 10, and the bearing seat 10 is fixed on the moving part of the radial motion mechanism. The moving part of the radial motion mechanism is provided with a slide rail 11, and the first support 6 and the second support 7 are both provided with a slider matching the slide rail. The first support 6 and the second support 7 are slidably connected to the moving part of the radial motion mechanism through the cooperation of the slider and the slide rail 11, and the sliding direction is along the tangent direction of the turntable.

[0040] In this embodiment, the bidirectional lead screw 9 rotates to drive the first support 6 and the second support 7 to move toward or away from each other synchronously.

[0041] The middle part of the bidirectional screw 9 is connected to one end of the transmission shaft through a bevel gear transmission mechanism. The transmission shaft is arranged along the radial direction of the turntable. The transmission shaft adopts a telescopic shaft, including a first shaft segment 12 and a second shaft segment 13 that are telescopically connected. The first shaft segment 12 and the second shaft segment 13 are circumferentially connected by a key connection so that the first shaft segment 12 and the second shaft segment 13 can rotate synchronously around their own axes while also being able to produce relative linear telescopic motion along their own axes.

[0042] The first shaft section 12 is connected to the bidirectional screw 9 through a bevel gear transmission mechanism, and the first shaft section 12 is also rotatably connected to the bearing seat, and the bearing seat is fixed to the moving part of the radial motion mechanism. The first shaft section 12 is supported by the bearing seat, and the second shaft section 13 extends into the interior of the gear box housing 14 fixed to the center of the turntable and is rotatably connected to the gear box housing 14 through a bearing. The end of the second shaft section 13 is connected to the second active bevel gear 15 through a bevel gear transmission mechanism. The second active bevel gear 15 is coaxially arranged with the turntable 1, and the second active bevel gear 15 is fixedly connected to the second gear shaft. The second gear shaft is rotatably connected to the top shell wall of the gear box housing 14 through a bearing, and the second gear shaft is a damping shaft. It can only rotate relative to the gear box housing 14 under a certain external load. Therefore, when the turntable 1 rotates, there is no relative movement between the second active bevel gear and the bevel gear meshing with it. When the turntable 1 rotates, the bidirectional lead screw 9 will not rotate around its own axis. When the turntable rotates to the target position and is fixed, only when the staff uses the handle to rotate the second gear shaft can the second bevel gear 15 be rotated, thereby driving the bidirectional lead screw 9 to rotate.

[0043] In this embodiment, the transmission shafts corresponding to the adjustment mechanisms connected to the four steel back fixing mechanisms are all connected to the second active bevel gear 15 in the same manner. The rotation of the second active bevel gear 15 can synchronously drive the four bidirectional screws 9 to rotate through the transmission shaft, thereby synchronously adjusting the distance between the first uprights 4 and the second uprights 5 of the four steel back fixing mechanisms.

[0044] Furthermore, in order to facilitate the rotation of the second driving bevel gear 15 , a second handle 16 is provided at the top end of the second gear shaft to which the second driving bevel gear 15 is connected. The staff can drive the second driving bevel gear 15 to rotate through the second handle 16 .

[0045] Furthermore, a support plate 17 is provided above the first support 6 and the second support 7. The support plate 17 is used to support the steel back 18. The support plate 18 is fixed to the vertical plate 19. The vertical plate 19 is fixed to the moving part of the radial motion mechanism. The support plate 17 is provided with a sliding groove for the movement of the first vertical rod 4 and the second vertical rod 5.

[0046] The radial motion mechanism is used to drive the steel back fixing mechanism and the connected adjustment mechanism to move along the radial direction of the turntable.

[0047] The radial motion mechanism includes a first active bevel gear 20, which is located above the turntable 1 and inside the gearbox housing 14. The first active bevel gear 20 is coaxially arranged with the turntable 1, and the first active bevel gear 20 is connected to the first gear shaft. The first gear shaft is rotatably connected to the turntable 1. The first gear shaft is a damping shaft. Only under the action of a set external load can the first gear shaft and the turntable 1 rotate relative to each other. The first active bevel gear 20 is connected to one end of the radial adjustment screw 21 through the bevel gear transmission mechanism. The radial adjustment screw 21 is arranged along the radial direction of the turntable 1 and is located directly below the corresponding transmission shaft. The radial adjustment screw 21 is rotatably connected to the bearing seat, and the bearing seat is fixed on the upper surface of the turntable 1. The radial adjustment screw 21 is connected to the screw nut, and the screw nut is fixedly connected to the radial moving seat 22. The radial moving seat 22 serves as the moving part of the radial adjustment mechanism, and its upper surface is slidably connected to the first support 6 and the second support 7 and is rotatably connected to the bidirectional screw 9 through the bearing seat.

[0048] The bottom surface of the radial movable seat 22 is provided with a slider, which is slidably connected to the slide rail 23 provided on the upper surface of the turntable 1. The radial movable seat 22 is slidably connected to the turntable 1 along the radial direction through the cooperation of the slider and the slide rail 23.

[0049] The radial adjustment screw 21 corresponding to the radial adjustment mechanism connected to each steel back fixing mechanism is connected to the same first active bevel gear 20. The rotation of the first active bevel gear 20 can drive the four radial adjustment screws 21 to rotate synchronously, thereby making the four steel back fixing mechanisms and the adjustment mechanisms move synchronously along the radial direction of the turntable 1.

[0050] Furthermore, in order to facilitate the rotation of the first driving bevel gear 20 , a first handle 24 is provided at the bottom end of the first gear shaft connected to the first driving bevel gear 20 , and a staff member can use the first handle 24 to drive the first driving bevel gear to rotate.

[0051] like Figure 6 As shown, the rotation drive mechanism includes a rotation drive member. In this embodiment, the rotation drive member adopts a rotation drive motor 25. The shell of the rotation drive motor 25 is fixedly connected to the base 2, and its output shaft extends above the base 2 and is connected to the gear 26. The gear 26 is meshed with the ring gear 27. The ring gear 27 is rotatably connected to the base 2. The ring gear 27 is coaxially arranged with the turntable 1. The ring gear 27 can rotate around its own axis. The upper surface of the ring gear 27 is fixedly connected to the bottom surface of the turntable 1, and the ring gear 27 can drive the turntable 1 to rotate.

[0052] The rotary drive motor 25 drives the gear 26 to rotate. Under the meshing action of the gear 26 and the ring gear 27, the ring gear 27 can drive the turntable 1 to rotate around its own axis.

[0053] In this embodiment, when the turntable 1 rotates, since the first gear shaft of the first active bevel gear 20 is a damping shaft, when the turntable 1 rotates, the first active bevel gear 20 rotates synchronously with the turntable 1, and no relative rotation occurs between the first active bevel gear 20 and the turntable. Therefore, no relative motion occurs between the first active bevel gear 20 and the bevel gear meshing with it, and the radial adjustment screw does not rotate around its own axis. The radial adjustment mechanism does not work. Only when the staff acts on the first handle 24 through external force to overcome the friction between the gear shaft and the turntable can the first active bevel gear be rotated. At this time, since the turntable is locked by the gear meshed with the ring gear, the first active bevel gear 20 can rotate alone around its own axis.

[0054] like Figure 8 As shown, the screwing mechanism includes a bracket 3-1, and a lifting mechanism 3-2 is provided on the top of the bracket 3-1. The lifting mechanism 3-2 is connected to the horizontal moving mechanism 3-3, and can drive the horizontal moving mechanism 3-3 to perform lifting and lowering movements. The horizontal moving mechanism 3-3 is arranged along the radial direction of the turntable 1, and the horizontal moving mechanism 3-3 is connected to the mounting plate 3-4, and can drive the mounting plate 3-4 to move in the horizontal direction.

[0055] In this embodiment, the lifting mechanism 3-2 adopts a screw lifting mechanism, including a vertical screw arranged vertically, the vertical screw and the bracket are rotatably connected through a bearing, the vertical screw is connected with a screw nut, and the screw nut is fixedly connected to the frame of the horizontal moving mechanism, and the frame of the horizontal moving mechanism 3-3 is connected to the bracket along the vertical sliding direction through a slider and a guide rail.

[0056] A handle is provided at the top of the vertical lead screw, and the staff can use the handle to drive the vertical lead screw to rotate, thereby driving the horizontal moving mechanism 3-3 to perform lifting movements.

[0057] The horizontal moving mechanism 3-3 includes a frame, which is rotatably connected to a horizontal lead screw through a bearing, the horizontal lead screw is connected to a lead screw nut, the lead screw nut is fixedly connected to a mounting plate, the mounting plate is slidably connected to the frame through a slider and a horizontal guide rail on the frame, and a handle is provided at the end of the horizontal lead screw. The staff can drive the horizontal lead screw to rotate through the handle, thereby making the mounting plate move horizontally.

[0058] The mounting plate 3-4 is provided with a lifting drive member. In this embodiment, the lifting drive member adopts a lifting drive cylinder 3-5 with a vertical axis. The cylinder body of the lifting drive cylinder 3-5 is fixedly connected to the mounting plate 3-4, and a connecting member is provided at the end of its piston rod. The connecting member is connected to the lifting member. In this embodiment, the connecting member adopts a connecting plate 3-6, and the lifting member adopts a lifting plate 3-7. The connecting plate 3-6 is fixedly connected to the lifting plate 3-7. The lifting plate 3-7 is connected to the mounting plate along a vertical sliding path through a slider and a vertical guide rail on the mounting plate 3-4.

[0059] The lifting plate 3-7 is fixedly connected to the bearing seat 3-8, a rotating shaft 3-9 passes through the bearing seat 3-8, and the rotating shaft 3-9 is rotatably connected to the bearing seat 3-8. The lifting plate 3-7 can drive the rotating shaft 3-9 to rise and fall through the bearing seat 3-8 without affecting the rotation of the rotating shaft 3-9 around its own axis.

[0060] Furthermore, the lifting plate 3-7 is connected to one end of the tension spring 3-10, and the other end of the tension spring 3-10 is connected to the tension spring connecting plate provided on the mounting plate 3-4. The tension spring 3-10 can apply an upward elastic force to the lifting plate.

[0061] The tension spring 3-10 can help provide the lifting drive cylinder 3-5 with an upward force, and is used to offset gravity for buffering when the lifting plate moves downward. The design of the tension spring 3-10 can reduce the design size of the lifting drive cylinder 3-5.

[0062] The rotating shaft 3-9 is also connected to a rotation drive mechanism, which can drive the rotating shaft to rotate around its own axis.

[0063] In this embodiment, the rotation drive mechanism includes a rotation drive motor 3-11, which is fixed on the mounting plate 3-4. The rotation drive motor 3-11 is connected to the rotating shaft 3-9 through a belt transmission mechanism and can drive the rotating shaft 3-9 to rotate around its own axis.

[0064] The belt transmission mechanism includes a driving pulley 3-12, a driven pulley 3-13 and a transmission belt. The driving pulley 3-12 is connected to the output shaft of the rotating drive motor 3-11, and the driven pulley 3-13 is sleeved on the outer periphery of the shaft sleeve 3-14 and fixedly connected to the shaft sleeve 3-14. The two sides of the shaft sleeve 3-14 are rotatably connected to the bearing seat 3-15, and the bearing seat 3-15 is used to limit its axial direction. The bearing seat 3-15 connected to the shaft sleeve 3-14 is fixed on the mounting plate 3-4, and the shaft sleeve 3-14 is connected to the rotating shaft 3-9 by a key connection. The shaft sleeve 3-14 can drive the rotating shaft 3-9 to rotate around its own axis, and the rotating shaft 3-9 can also make a linear motion along its own axis.

[0065] The bottom end of the rotating shaft 3-9 is provided with a screwing plate 3-16, and the rotating shaft 3-9 can drive the screwing plate 3-16 to rotate. Figure 9 As shown, two arc grooves 3-17 are provided on the wire twisting plate 3-16, and the two ends of the iron wire pass through the two arc grooves 3-17 respectively. When the wire twisting plate 3-16 rotates, the arc grooves 3-17 can be used to drive the ends of the iron wire to move, thereby realizing wire twisting.

[0066] Furthermore, a tightening cylinder 28 is provided at the screw threading station, and the tightening cylinder 28 is fixed on the upper surface of the base 2. The piston rod of the tightening cylinder 28 is connected to the tightening block 29. The tightening block 29 adopts a pointed-angle structure. The turntable 1 is provided with a fixing block 30 below the corresponding position of each steel back fixing mechanism. The fixing block 30 is provided with a V-shaped groove that matches the pointed-angle structure of the tightening block 29. After the steel back fixing mechanism rotates to the screw threading station with the turntable 1, the tightening cylinder 28 drives the pointed-angle structure of the tightening block 29 to be inserted into the V-shaped groove, thereby further locking and fixing the turntable 1.

[0067] The working method of the screwing device of this embodiment is as follows:

[0068] The radial motion mechanism works, and the radial position of the steel back fixing mechanism on the turntable is adjusted. The adjustment mechanism works, and the distance between the first vertical pole 4 and the second vertical pole 5 is adjusted so that the first vertical pole 4 and the second vertical pole 5 match the steel back to be twisted. The iron wire is bent into a U shape, and the two vertical parts of the iron wire are respectively embedded in the arc grooves 8 of the first vertical pole 4 and the second vertical pole 5. Multiple steel backs 18 are stacked and placed. The first vertical pole 4, the second vertical pole 5 and the two vertical parts of the iron wire respectively pass through the two openings of the steel back 18, and the bottom layer of steel back 18 is placed on the support plate 17.

[0069] In this embodiment, the stacking of the steel backs 18 is performed by a robot, which can be an existing device and will not be described in detail here.

[0070] The rotary drive motor 25 works, driving the turntable 1 to move the steel back fixing mechanism stacked with steel backs 18 to the wire twisting station, and the lifting mechanism 3-2 and the horizontal moving mechanism 3-3 of the wire twisting mechanism work to move the wire twisting plate 3-16 to the target initial position, and the lifting drive cylinder 3-5 works to drive the wire twisting plate 3-16 to descend, so that the two vertical parts of the iron wire pass through the two arc grooves 3-17 of the wire twisting plate 3-16 respectively, and then, the rotary drive motor 3-11 drives the rotating shaft 3-9 to rotate through the belt transmission mechanism, and the rotating shaft 3-9 drives the wire twisting plate 3-16 to rotate to realize the twisting of the iron wire.

[0071] After the screwing is completed, the lifting drive cylinder 3-5 returns to the initial position, the lifting mechanism 3-2 and the horizontal moving mechanism 3-3 return to the initial position, the turntable 1 rotates, and the next steel back fixing mechanism is rotated to the screwing station, and the same method is used to screw the next steel back 18.

[0072] By adopting the wire twisting device of this embodiment, multiple stacked steel backs are fixed by vertical poles when twisting, without the need for manual fixation, saving labor costs. At the same time, the two vertical poles are connected to the adjustment mechanism, and the adjustment mechanism can adjust the distance between the two vertical poles, thereby meeting the fixing requirements of steel backs of different specifications and improving the applicability of the wire twisting device. When replacing the steel back, it is only necessary to adjust the distance between the two vertical poles. The adjustment time is short, the work efficiency is high, and it will not affect the production progress.

[0073] The above description is merely a preferred embodiment of the present application and is not intended to limit the present application. Various modifications and variations are possible for those skilled in the art. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the present application shall be included within the scope of protection of the present application.

Claims

1. A screw threading device for steel back, characterized in that: It includes a turntable, a wire tightening station on one side of the turntable is provided with a wire tightening mechanism, the turntable is connected to the rotating mechanism, a plurality of steel back fixing mechanisms are provided in a circumferential direction on the turntable, the steel back fixing mechanism includes two vertically arranged vertical poles that match the openings on the steel back, the bottom ends of the vertical poles are connected to the support seat, the support seat is connected to the adjustment mechanism to drive the two vertical pole seats to move toward or away from each other synchronously, the wire tightening mechanism includes a bracket, the bracket is provided with a lifting drive member with a vertical axis, the lifting drive member is connected to the lifting member, the lifting member is rotatably connected to the rotating shaft, the rotating shaft is connected to the rotating drive mechanism provided on the bracket, a wire tightening plate is provided at the bottom end of the rotating shaft, and the wire tightening plate is provided with an arc groove for the wire to pass through.

2. A steel back screwing device according to claim 1, characterized in that: A lifting mechanism is provided on the top of the bracket, the lifting part of the lifting mechanism is connected to the horizontal moving mechanism, the moving part of the horizontal moving mechanism is connected to the mounting plate, the lifting driving member is fixed on the mounting plate, and the lifting member is slidably connected to the mounting plate.

3. A steel back screwing device as claimed in claim 2, characterized in that: The rotation drive mechanism adopts a rotation drive member fixed to the mounting plate, and the rotation drive member is connected to the rotating shaft through a belt transmission mechanism. The rotating shaft is circumferentially connected to the driven pulley of the belt transmission mechanism so that the driven pulley can drive the rotating shaft to rotate while the rotating shaft can also move along its own axial direction.

4. A steel back screwing device as claimed in claim 2, characterized in that: The lifting drive member adopts a cylinder, the cylinder body of the cylinder is fixedly connected to the mounting plate, the piston rod thereof is connected to the lifting member through a connecting member, and the lifting member is rotatably connected to the rotating shaft through a bearing seat.

5. A steel back screwing device as claimed in claim 1, characterized in that: The rotating mechanism includes a rotating driving member fixed to the base, the rotating driving member is connected to the gear, the gear is meshed with the gear ring, and the turntable is coaxially fixed to the upper surface of the gear ring.

6. A steel back screwing device as claimed in claim 1, characterized in that: The turntable is provided with a radial motion mechanism, which is connected to the steel back fixing mechanism to drive the steel back fixing mechanism to move along the radial direction of the turntable.

7. A steel back screwing device as claimed in claim 6, characterized in that: The radial motion mechanism includes a first active bevel gear rotatably connected to the center position of the turntable, the first active bevel gear is connected to the radial adjustment screw through a bevel gear transmission mechanism, the radial adjustment screw is connected to the radial moving seat, the radial moving seat is connected to the turntable in a radial sliding connection with the turntable, and the radial moving seat is connected to the steel back fixing mechanism.

8. A steel back screwing device as claimed in claim 7, characterized in that: The first active bevel gear is connected to the gear shaft, the gear shaft is rotatably connected to the turntable, and a first handle is provided at the bottom end of the gear shaft.

9. A steel back screwing device as claimed in claim 1, characterized in that: The adjusting mechanism includes a bidirectional screw, a support at the bottom end of the two vertical rods is connected to the bidirectional screw, and the rotation of the bidirectional screw can drive the two vertical rods to move toward or away from each other, the support and the turntable are connected to slide tangentially along the turntable, the bidirectional screw is connected to one end of the transmission shaft through a bevel gear transmission mechanism, and the other end of the transmission shaft is connected to the second active bevel gear through a bevel gear transmission mechanism, and the second active bevel gear is rotatably connected to the gear box housing set on the turntable.

10. A steel back screwing device according to claim 9, characterized in that: The second active bevel gear is connected to the gear shaft, the gear shaft is rotatably connected to the gear box housing, and a second handle is provided on the top end of the gear shaft.

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