A bending device for steel bar processing with surface rust removal function

Abstract

The invention discloses a bending device for steel bar processing with a surface rust removal function, and relates to the technical field of steel bar processing and treatment. The bending device includes a machine platform, a rust removal box, a vibrating roller and a disc. A machine box is installed below the machine platform, and the disc is rotatably installed on the machine platform. The rust removal box and the vibrating roller are installed on the machine platform. The rust removal box is located on one side of the disc. There are two vibrating rollers. The vibrating roller first vibrates the rust on the steel bar, and the rust removal box removes the rust on the surface of the steel bar with a wire brush. A driving motor is installed in the machine box, and the driving motor rotates the disc. A clamping column for bending the steel bar is installed on the disc. One end of the steel bar is placed between the two clamping columns. The disc is driven by the driving motor to bend the steel bar. During the bending process, the steel bar rests on the supporting roller at one end of the machine platform. Driven by the disc, the supporting roller and the clamping column cooperate with each other to achieve the bending of the steel bar.

Description

Technical Field

[0001] The invention relates to the technical field of steel bar processing and treatment, in particular to a steel bar processing bending device with a surface rust removal function. Background Art

[0002] A large amount of reinforced concrete is used in construction, which is often referred to as reinforced concrete in engineering. It refers to a composite material formed by adding steel mesh, steel plate or fiber to concrete. The initial state of the steel bars when they are transported to the construction site is generally straight bundles, so the steel bars need to be bent using a steel bar bending machine during actual construction to meet different construction needs.

[0003] During the construction process, steel bars will rust due to long-term stacking. If the steel bars are used directly without treating the rust, the steel bars will not bond well with the concrete during pouring and will not have sufficient bearing capacity. This will also affect the strength of the steel bars themselves. Therefore, the steel bars are usually derusted before use.

[0004] Before bending the steel bars, if residual rust is detected on the steel bars, the rust needs to be processed again. Whether the steel bars are moved to the rust removal equipment for rust removal or the steel bars are manually rusted, it takes a certain amount of time, resulting in low efficiency in bending the steel bars. Summary of the invention

[0005] The object of the present invention is to provide a bending device for steel bar processing with surface rust removal function to solve the problems raised in the prior art.

[0006] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a bending device for steel bar processing with surface rust removal function, comprising a chassis, a control box, a platform installed above the chassis, the control box is connected to the control system inside the chassis through a wire, the control box is installed on the platform, and a plurality of control buttons are arranged on the control box. It also comprises a rust removal box, a vibration roller and a disc, the disc is rotatably installed on the platform, a pad is installed on each of the two sides above the platform, the vibration roller is rotatably installed on one of the pads, the vibration roller is connected to a vibration motor located in the chassis through an axis, the rust removal box is installed on the platform and on one side of the vibration roller, a support roller is installed on the other pad at a position corresponding to the vibration roller, and two clamping columns are installed on the disc.

[0007] There are two vibration rollers, the rust removal box is provided with a through hole, and limit plates are symmetrically installed inside the rust removal box. A wire drum is installed between the two limit plates, and a rust removal motor is installed inside the rust removal box. The rust removal motor is connected to the wire drum, and a steel wire is arranged on the inner ring of the wire drum.

[0008] Annular clamping plates are provided at both ends of the wire drum, and an annular groove is circumferentially provided at the middle part of the clamping plate. Both sides of each annular groove are rotatably connected to a limit plate. Slide grooves are symmetrically provided on the two limit plates located on the same side of the wire drum. Tension rollers are slidably installed on the two limit plates through the slide grooves. Roller seats are installed at both ends of the tension roller, and the roller seat is located on one side of the limit plate. A baffle is installed on the limit plate at a position above the slide groove, and a tension spring is installed between the baffle and the roller seat. The rust removal motor is installed on one of the limit plates, and a driving roller is installed on the output shaft of the rust removal motor. A groove is provided at one end of the driving roller and the groove is sleeved on the outside of the rust removal motor. The driving roller is rotatably installed between the two limit plates, and the driving roller, tension roller and wire drum are commonly connected with a belt. Before the steel bar is derusted, the center line of the steel wire drum is higher than the upper end surface of the vibration roller. During the derusting, the rust residue or untreated steel bar due to the failure of manual derusting can be directly inserted into the steel wire drum without passing through the vibration roller. The rust removal motor drives the steel wire drum to rotate through the belt, and the steel wire drum removes the rust residue. When the vibration roller is needed, the vibration motor (not shown in the figure) drives the vibration roller to vibrate through the shaft. Now one end of the steel bar is passed through the two vibration rollers, and then inserted into the steel wire drum obliquely. Due to the setting of the tension roller and the sliding connection between the steel wire drum and the limit plate, as the steel bar is lifted flat, the steel wire drum also moves downward driven by the steel bar. Finally, the steel wire drum is concentric with the steel bar. The tension roller keeps the belt in a tensioned state under the support of the tension spring. After the rust removal is completed, the steel wire is moved out from the other side of the rust removal box, the tension roller is reset under the support of the tension spring, and the steel wire drum is reset under the restriction of the limit plate and the belt.

[0009] A disc slot is provided on the machine platform, the disc is rotatably installed in the disc slot, a clutch slot is provided at the bottom of the disc, a folding shaft is installed at the center position of the clutch slot at the bottom of the disc, the folding shaft is connected to a driving motor through a clutch assembly, and the driving motor is installed under the machine platform through a frame.

[0010] A bending disk is rotatably mounted on the disk at a position deviating from the center of the circle, a bending shaft is mounted at the center position below the bending disk, two clamping columns are mounted on the bending disk, arc-shaped docking grooves are arranged on the disk and the bending disk, a retractable arc-shaped template is mounted in the docking groove in the disk, and the template can make a circular motion in the docking groove;

[0011] A clutch assembly is installed in the disc slot. The clutch assembly and the drive motor form a drive structure for driving the bending shaft or the folding shaft to rotate. The input end of the clutch assembly is connected to the output shaft of the drive motor, and the output end of the clutch assembly is connected to the folding shaft or the bending shaft.

[0012] The clutch assembly includes an adapter shaft connected to the output shaft of the drive motor, a connecting sleeve slidably mounted on one end of the adapter shaft, an annular electromagnetic groove is arranged at one end of the adapter shaft away from the output shaft of the drive motor, an electromagnet is arranged in the electromagnetic groove, the cross section of the connecting sleeve is in the shape of an "I", a magnet is installed in the middle of the connecting sleeve, the magnet is located in the annular electromagnetic groove, a plurality of flat keys are arranged on the outer side and inner side of the lower end of the connecting sleeve and the outer side of the folded circular shaft, a plurality of key slots are arranged on the outer side of one end of the adapter shaft, and the flat key on the inner side of the lower end of the connecting sleeve is located in the key slot;

[0013] A carrier plate is rotatably mounted on the transfer shaft, and the other end of the carrier plate is rotatably mounted on the bending shaft. A driving wheel is rotatably mounted on the carrier plate on the outer side of the transfer shaft, and a driven wheel is mounted on the carrier plate on the outer side of the bending shaft, and a chain transmission is used between the driving wheel and the driven wheel;

[0014] The inner side of the upper end of the connecting sleeve and the upper end of the driving wheel are both provided with key slots. When the electromagnet is energized, a magnetic field is generated and the magnet is driven to slide in the electromagnetic slot. When the magnet drives the connecting sleeve to move downward, the flat key on the outer side of the lower end of the connecting sleeve is embedded in the key slot on the upper end of the driving wheel. When the magnet drives the connecting sleeve to move upward, the flat key on the outer side of the folding shaft is embedded in the key slot on the inner side of the upper end of the connecting sleeve. During the movement of the connecting sleeve, the connecting sleeve is only connected to the folding shaft or the driving wheel.

[0015] The template is an arc-shaped structure, and includes a sleeve and a base slidably installed in the docking groove, the sleeve is slidably installed on the base, a hydraulic bag is installed in the base, the upper end of the hydraulic bag is connected to the sleeve, and the hydraulic bag is connected to a hose that runs through the base, an oil channel connected to the hose is provided in the disc, the middle part of the folding shaft and the middle part of the adapter shaft are both provided with flow channels, the flow channel of the folding shaft is connected to the oil channel, the flow channel of the folding shaft and the flow channel of the adapter shaft are connected through a rotary joint, and a through hole for avoiding the rotary joint is provided in the middle part of the connecting sleeve;

[0016] The flow channel of the adapter shaft is "L" shaped, and an oil ring is rotatably installed on the outer side of the adapter shaft. One side of the oil ring is connected to an oil pipe, and the oil pipe is connected to the hydraulic pipe in the chassis. When the steel bar needs to be bent, the electromagnet (not shown in the figure) is energized under the control of the control system and magnetically attracts the magnet, attracting the magnet downward, so that the magnet drives the connecting sleeve to move downward, so that the connecting sleeve is connected to the driving wheel and separated from the folding shaft. The driving motor drives the driving wheel to rotate through the connecting sleeve, and the driving wheel drives the driven wheel through the chain, so that the bending shaft drives the bending disk to rotate. The bending disk bends the steel bar through two clamping columns. After the bending is completed, the operator feeds back the completion signal to the control system through the control box, and the driving motor drives the bending disk to reset. When the steel bar needs to be bent into a circle or a semicircle, the template is first manually pushed toward the bending disk so that one end of the template is inserted into the docking groove of the bending disk. Then the control system is operated through the control button on the control box. The control system controls the hydraulic system. The hydraulic system injects hydraulic oil into the hydraulic bag through hydraulic pipelines, oil rings, rotary joints and oil channels, so that the hydraulic bag lifts the shell, so that the shell extends out of the docking groove and forms a semicircular structure with one of the clamping columns. Under the control of the control system, the electromagnet is fed with reverse current, so that the magnet drives the connecting sleeve to move upward, the connecting sleeve docks with the bending shaft, and separates from the driving wheel; the steel bar is placed between the two clamping columns, and the driving motor drives the disc to rotate through the adapter shaft, the connecting sleeve and the bending shaft, so that the steel bar is bent into a semicircle through the shell or forms a complete ring after multiple bending. After the bending is completed, the driving motor drives the disc to reset, the hydraulic bag retracts the shell into the docking groove, and the template is manually pushed back to its original position.

[0017] The hose connected to the hydraulic bag is a bellows structure, and the cross section of the oil ring is "C"-shaped with the opening facing the transfer shaft.

[0018] Compared with the prior art, the present invention has the following beneficial effects:

[0019] 1. A double-disc composite design is adopted to combine the circular disc and the bending disc together, and a clutch assembly is used for drive connection. A driving motor is used to drive the circular disc or the bending disc to realize bending the steel bars into right angles, acute angles, obtuse angles, semicircles and full circles. Compared with a single bending device that uses multiple motors to drive two bending discs respectively, or uses multiple separate bending devices, the present invention integrates the steel bar corner bending and steel bar circle bending into one device, which occupies a small area and has low use cost. It can meet different construction needs and does not need to replace different bending equipment many times.

[0020] 2. The present invention combines the rust removal box with the bending device, eliminating the need for manual transportation of the steel bars to the independent rust removal equipment. At the same time, the rust removal box is driven by a motor, replacing manual labor, thereby improving the efficiency of rust removal. Moreover, the present invention can use the rust removal box to remove the rust remaining on the steel bars, and can also remove the rust from untreated steel bars. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a three-dimensional diagram of the overall structure of the present invention;

[0022] Figure 2 It is a top view of the overall structure of the present invention;

[0023] Figure 3 For the present invention Figure 2 Sectional view in the AA direction;

[0024] Figure 4 A three-dimensional diagram of the clutch assembly of the present invention installed in a disc slot;

[0025] Figure 5 A bottom perspective view of the connection between the disc and the clutch assembly of the present invention;

[0026] Figure 6 It is an exploded view of the template of the present invention and a stereoscopic view of the connection between the template and the disc;

[0027] Figure 7 An exploded view of the connection between the folding shaft, the disc and the clutch assembly of the present invention;

[0028] Figure 8 It is a three-dimensional diagram of the clutch assembly of the present invention;

[0029] Fig. 9 An exploded view of the clutch assembly of the present invention;

[0030] Fig.10 It is an exploded view of the rust removal box of the present invention.

[0031] In the figure: 1. chassis; 2. machine table; 3. rust removal box; 4. vibration roller; 5. support roller; 6. control box; 7. disc; 8. template; 81. sleeve shell; 82. base; 9. bending disc; 10. clamping column; 11. docking groove; 12. drive motor; 13. adapter shaft; 14. oil ring; 15. oil channel; 16. disc groove; 17. bending shaft; 18. folding shaft; 19. carrier plate; 20. chain; 21. driven wheel; 22. driving wheel; 23. connecting sleeve; 24. electromagnetic slot; 25. limit plate; 26. wire drum; 27. roller seat; 28. tension roller; 29. ​​rust removal motor; 30. belt. DETAILED DESCRIPTION

[0032] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0033] Example: Figure 1 - Fig.10 As shown, the present invention provides a technical solution, a bending device for steel bar processing with surface rust removal function, including a chassis 1, a control box 6, a machine table 2 is installed above the chassis 1, the control box 6 is connected to the control system inside the chassis 1 through a wire, the control box 6 is installed on the machine table 2, and a plurality of control buttons are arranged on the control box 6, and also includes a rust removal box 3, two vibration rollers 4 and a disc 7, a disc groove 16 is arranged on the machine table 2, and the disc 7 is rotatably installed in the disc groove 16, a pad is installed on each of the two sides above the machine table 2, two vibration rollers 4 are rotatably installed on one of the pads, and the vibration roller 4 is connected to the vibration motor located in the chassis 1 through an axis, the rust removal box 3 is installed on the machine table 2 and is located on one side of the vibration roller 4, and a support roller 5 is installed on the other pad at a position corresponding to the vibration roller 4.

[0034] A clutch groove is provided at the bottom of the disc 7, and a folding shaft 18 is installed at the center of the clutch groove at the bottom of the disc 7. The folding shaft 18 is connected to the drive motor 12 through a clutch assembly, and the drive motor 12 is installed below the machine platform 2 through a frame.

[0035] A bending disk 9 is rotatably mounted on the disk 7 at a position deviating from the center of the circle, a bending shaft 17 is mounted at the center position below the bending disk 9, two clamping columns 10 are mounted on the bending disk 9, arc-shaped docking grooves 11 are arranged on the disk 7 and the bending disk 9, a retractable arc-shaped template 8 is mounted in the docking groove 11 in the disk 7, and the template 8 can make a circular motion in the docking groove 11;

[0036] A clutch assembly is installed in the disc slot 16. The clutch assembly and the drive motor 12 are combined to form a driving structure for driving the bending shaft or the folding shaft to rotate. The input end of the clutch assembly is connected to the output shaft of the drive motor 12, and the output end of the clutch assembly is connected to the folding shaft 18 or the bending shaft 17.

[0037] The clutch assembly includes an adapter shaft 13 connected to the output shaft of the drive motor 12, a connecting sleeve 23 slidably mounted on one end of the adapter shaft 13, an annular electromagnetic groove 24 is arranged at one end of the adapter shaft 13 away from the output shaft of the drive motor 12, an electromagnet is arranged in the electromagnetic groove 24, the cross section of the connecting sleeve 23 is in the shape of an "I", a magnet is installed in the middle of the connecting sleeve 23, the magnet is located in the annular electromagnetic groove 24, a plurality of flat keys are arranged on the outer side and inner side of the lower end of the connecting sleeve 23 and the outer side of the folded round shaft 18, a plurality of key slots are arranged on the outer side of one end of the adapter shaft 13, and the flat key on the inner side of the lower end of the connecting sleeve 23 is located in the key slot;

[0038] A carrier plate 19 is rotatably mounted on the transfer shaft 13, and the other end of the carrier plate 19 is rotatably mounted on the bending shaft 17. A driving wheel 22 is rotatably mounted on the carrier plate 19 on the outer side of the transfer shaft 13, and a driven wheel 21 is mounted on the carrier plate 19 on the outer side of the bending shaft 17. The driving wheel 22 and the driven wheel 21 are driven by a chain 20.

[0039] Key grooves are provided on the inner side of the upper end of the connecting sleeve 23 and the upper end of the driving wheel 22. When the electromagnet is energized to generate a magnetic field and drive the magnet to slide in the electromagnetic groove 24, when the magnet drives the connecting sleeve 23 to move downward, the flat key on the outer side of the lower end of the connecting sleeve 23 is embedded in the key groove on the upper end of the driving wheel 22. When the magnet drives the connecting sleeve 23 to move upward, the flat key on the outer side of the folded shaft 18 is embedded in the key groove on the inner side of the upper end of the connecting sleeve 23. During the movement of the connecting sleeve 23, it is only connected to the folded shaft 18 or the driving wheel 22.

[0040] The template 8 is an arc-shaped structure, and includes a sleeve 81 and a base 82 slidably installed in the docking groove 11. The sleeve 81 is slidably installed on the base 82. A hydraulic bag is installed in the base 82. The upper end of the hydraulic bag is connected to the sleeve 81. The hydraulic bag is connected to a hose that passes through the base 82. The hose is a bellows structure. An oil passage 15 connected to the hose is provided in the disc 7. The middle part of the folding shaft 18 and the middle part of the adapter shaft 13 are both provided with flow passages. The flow passage of the folding shaft 18 is connected to the oil passage 15. The flow passage of the folding shaft 18 and the flow passage of the adapter shaft 13 are connected through a rotary joint. A through hole for avoiding the rotary joint is provided in the middle part of the connecting sleeve 23.

[0041] The flow channel of the adapter shaft 13 is "L"-shaped, and an oil ring 14 is rotatably installed on the outer side of the adapter shaft 13. The cross-section of the oil ring 14 is "C"-shaped and the opening faces the adapter shaft 13. An oil pipe is connected to one side of the oil ring 14, and the oil pipe is connected to the hydraulic pipeline in the chassis 1.

[0042] The rust removal box 3 is provided with a perforation, and two groups of limit plates 25 are symmetrically installed inside the rust removal box 3, and the number of each group of limit plates 25 is two. A wire drum 26 is installed between the two limit plates 25, and an annular clamping plate is provided at both ends of the wire drum 26. The middle part of the clamping plate is provided with an annular groove in the circumferential direction, and both sides of each annular groove are rotatably connected with the limit plates 25. A rust removal motor 29 is installed inside the rust removal box 3, and the rust removal motor 29 is installed on one of the limit plates 25. The inner ring of the wire drum 26 is provided with a steel wire;

[0043] Slide grooves are symmetrically arranged on the two limit plates 25 located on the same side of the wire drum 26. Tension rollers 28 are slidably installed on the two limit plates 25 through the slide grooves. Roller seats 27 are installed at both ends of the tension roller 28. The roller seat 27 is located on one side of the limit plate 25. A baffle is installed on the limit plate 25 at a position above the slide groove. A tension spring is installed between the baffle and the roller seat 27. A driving roller is installed on the output shaft of the rust removal motor 29. A groove is arranged at one end of the driving roller and the driving roller is sleeved on the outside of the rust removal motor 29. The driving roller is rotatably installed between the two limit plates 25. The driving roller, the tension roller 28 and the wire drum 26 are commonly connected with a belt 30.

[0044] The working principle of the present invention is as follows: before the steel bars are derusted, the center line of the steel wire drum 26 is higher than the upper end surface of the vibration roller 4. During the derusting, the rust residue or untreated steel bars which are not completely derusted manually can be directly inserted into the steel wire drum 26 without passing through the vibration roller 4. The rust removal motor 29 drives the steel wire drum 26 to rotate through the belt 30, and the steel wire drum 26 removes the rust residue.

[0045] When the vibration roller 4 is needed, the vibration motor drives the vibration roller 4 to vibrate through the shaft. Now one end of the steel bar is passed through between the two vibration rollers 4, and then inserted obliquely into the wire drum 26. Due to the setting of the tension roller 28 and the sliding connection between the wire drum 26 and the limit plate 25, as the steel bar is lifted flat, the wire drum 26 also moves downward driven by the steel bar. Finally, the wire drum 26 is concentric with the steel bar. The tension roller 28 keeps the belt 30 in a tensioned state under the support of the tension spring. After rust removal is completed, the steel wire is moved out from the other side of the rust removal box 3, and the tension roller 28 is reset under the support of the tension spring, and the wire drum 26 is reset under the restriction of the limit plate 25 and the drive of the belt 30.

[0046] The steel bars after rust removal are bent. When the steel bars are bent into right angles, acute angles or obtuse angles, the electromagnet is energized under the control of the control system and magnetically attracts the magnet, attracting the magnet downward, so that the magnet drives the connecting sleeve 23 to move downward, so that the connecting sleeve 23 is connected to the driving wheel 22 and separated from the folding shaft 18, and the driving motor 12 drives the driving wheel 22 to rotate through the connecting sleeve 23, and the driving wheel 22 drives the driven wheel 21 through the chain 20, so that the bending shaft 17 drives the bending disk 9 to rotate, and the bending disk 9 bends the steel bars through two clamping columns 10. After the bending is completed, the operator feeds back a completion signal to the control system through the control box 6, and the driving motor 12 drives the bending disk 9 to reset.

[0047] When it is necessary to bend the steel bar into a circle or a semicircle, the template 8 is first manually pushed toward the bending disk 9 so that one end of the template 8 is inserted into the docking groove 11 of the bending disk 9. Then, the control system is operated by the control button on the control box 6. The control system controls the hydraulic system. The hydraulic system injects hydraulic oil into the hydraulic bag through the hydraulic pipeline, oil ring 14, rotary joint and oil channel 15, so that the hydraulic bag lifts the sleeve 81, so that the sleeve 81 extends out of the docking groove 11 and forms a semicircular structure with one of the clamping columns 10. Under the control of the control system, the electromagnet is fed with a reverse current, so that the magnet drives the connecting sleeve 23 to move upward, and the connecting sleeve 23 docks with the folding shaft 18 and separates from the driving wheel 22; the steel bar is placed between the two clamping columns 10, and the driving motor 12 drives the disc 7 to rotate through the adapter shaft 13, the connecting sleeve 23 and the folding shaft 18, so that the steel bar is bent into a semicircle through the sleeve 81 or forms a complete ring after multiple bending. After the bending is completed, the driving motor 12 drives the disc 7 to reset, the hydraulic bag retracts the sleeve 81 into the docking groove 11, and the template 8 is manually pushed back to its original position.

[0048] It will be apparent to those skilled in the art that the invention is not limited to the details of the exemplary embodiments described above and that the invention can be implemented in other specific forms without departing from the spirit or essential features of the invention. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of the invention is defined by the appended claims rather than the foregoing description, and it is intended that all variations falling within the meaning and scope of the equivalent elements of the claims be included in the invention. Any reference numeral in a claim should not be considered as limiting the claim to which it relates.

Claims

1. A steel bar bending device with a surface rust removal function, comprising a chassis (1) and a control box (6), wherein a machine platform (2) is mounted above the chassis (1), the control box (6) is connected to a control system inside the chassis (1) via a wire, the control box (6) is mounted on the machine platform (2), and a plurality of control buttons are arranged on the control box (6), characterized in that: It also comprises a rust removal box (3), a vibration roller (4) and a disc (7), wherein the disc (7) is rotatably mounted on the machine platform (2), a cushion block is mounted on each of the two sides above the machine platform (2), the vibration roller (4) is rotatably mounted on one of the cushion blocks, the vibration roller (4) is connected to a vibration motor located in the machine box (1) via a shaft, the rust removal box (3) is mounted on the machine platform (2) and is located on one side of the vibration roller (4), and a support roller (5) is mounted on the other cushion block at a position corresponding to the vibration roller (4); A folding shaft (18) is installed at the center position below the circular disk (7), a bending disk (9) is eccentrically installed on the circular disk (7), two clamping columns (10) are installed on the bending disk (9), a bending shaft (17) is installed at the center position below the bending disk (9), the circular disk (7) and the bending disk (9) are provided with arc-shaped docking grooves (11), a retractable arc-shaped template (8) is installed in the docking groove (11) in the circular disk (7), and the template (8) can perform circular motion in the docking groove (11), and a driving structure for driving the bending shaft (17) or the folding shaft (18) to rotate is provided on the machine table (2).

2. A steel bar bending device with surface rust removal function according to claim 1, characterized in that: The number of the vibrating rollers (4) is two, the rust removal box (3) is provided with a perforation, two groups of limit plates (25) are symmetrically installed inside the rust removal box (3), the number of each group of limit plates (25) is two, a steel wire drum (26) is installed between the two limit plates (25), a rust removal motor (29) is installed inside the rust removal box (3), the rust removal motor (29) is connected to the steel wire drum (26), and the inner ring of the steel wire drum (26) is provided with steel wire.

3. A steel bar bending device with surface rust removal function according to claim 2, characterized in that: Annular clamping plates are arranged at both ends of the wire drum (26), an annular groove is arranged in the middle of the clamping plate in the circumferential direction, and both sides of each annular groove are rotatably connected to a limit plate (25), and two limit plates (25) located on the same side of the wire drum (26) are symmetrically provided with sliding grooves, and the two limit plates (25) are slidably mounted with tension rollers (28) through the sliding grooves, and roller seats (27) are installed at both ends of the tension roller (28), and the roller seats (27) are located on one side of the limit plate (25). The limit plate (25) is provided with a plurality of roller seats (27) at the ends of the tension rollers (28). ) A baffle is installed at a position above the slide, and a tension spring is installed between the baffle and the roller seat (27). The rust removal motor (29) is installed on one of the limit plates (25). A driving roller is installed on the output shaft of the rust removal motor (29). A groove is provided at one end of the driving roller and the driving roller is sleeved on the outside of the rust removal motor (29). The driving roller is rotatably installed between the two limit plates (25). The driving roller, the tension roller (28) and the wire drum (26) are commonly connected with a belt (30).

4. A steel bar bending device with surface rust removal function according to claim 1, characterized in that: The machine platform (2) is provided with a disc groove (16), the disc (7) is rotatably mounted in the disc groove (16), the driving structure comprises a clutch assembly mounted in the disc groove (16) and a driving motor (12) whose output shaft is connected to an input end of the clutch assembly, a clutch groove is provided at the bottom of the disc (7), a folding shaft (18) is mounted at the center of the clutch groove at the bottom of the disc (7), and the driving motor (12) is mounted below the machine platform (2) via a frame.

5. A steel bar bending device with surface rust removal function according to claim 4, characterized in that: The clutch assembly comprises an adapter shaft (13) connected to the output shaft of the drive motor (12), a connecting sleeve (23) slidably mounted on one end of the adapter shaft (13), an annular electromagnetic groove (24) being provided at one end of the adapter shaft (13) away from the output shaft of the drive motor (12), an electromagnet being provided in the electromagnetic groove (24), the connecting sleeve (23) having an "I"-shaped cross section, a magnet being installed in the middle of the connecting sleeve (23), the magnet being located in the annular electromagnetic groove (24), a plurality of flat keys being provided on the outer side and inner side of the lower end of the connecting sleeve (23) and the outer side of the folded round shaft (18), a plurality of key slots being provided on the outer side of one end of the adapter shaft (13), and the flat key on the inner side of the lower end of the connecting sleeve (23) being located in the key slot; A carrier plate (19) is rotatably mounted on the transfer shaft (13), the other end of the carrier plate (19) is rotatably mounted on the bending shaft (17), a driving wheel (22) is rotatably mounted on the carrier plate (19) on the outer side of the transfer shaft (13), a driven wheel (21) is rotatably mounted on the carrier plate (19) on the outer side of the bending shaft (17), and a chain (20) is used to transmit power between the driving wheel (22) and the driven wheel (21); The inner side of the upper end of the connecting sleeve (23) and the upper end of the driving wheel (22) are both provided with a key slot. When the electromagnet is energized, a magnetic field is generated and the magnet is driven to slide in the electromagnetic slot (24). When the magnet drives the connecting sleeve (23) to move downward, the flat key on the outer side of the lower end of the connecting sleeve (23) is embedded in the key slot on the upper end of the driving wheel (22). When the magnet drives the connecting sleeve (23) to move upward, the flat key on the outer side of the folding shaft (18) is embedded in the key slot on the inner side of the upper end of the connecting sleeve (23). During the movement of the connecting sleeve (23), it is only connected to the folding shaft (18) or the driving wheel (22).

6. A steel bar bending device with surface rust removal function according to claim 5, characterized in that: The template (8) is an arc-shaped structure. The template (8) comprises a sleeve (81) and a base (82) slidably mounted in the docking groove (11). The sleeve (81) is slidably mounted on the base (82). A hydraulic bag is mounted in the base (82). The upper end of the hydraulic bag is connected to the sleeve (81). The hydraulic bag is connected to a hose that passes through the base (82). An oil passage (15) connected to the hose is provided in the disc (7). A flow passage is provided in the middle of the folding shaft (18) and the middle of the adapter shaft (13). The flow passage of the folding shaft (18) is connected to the oil passage (15). The flow passage of the folding shaft (18) and the flow passage of the adapter shaft (13) are connected via a rotary joint. A through hole for avoiding the rotary joint is provided in the middle of the connecting sleeve (23). The flow channel of the adapter shaft (13) is "L"-shaped, an oil ring (14) is rotatably mounted on the outer side of the adapter shaft (13), one side of the oil ring (14) is connected to an oil pipe, and the oil pipe is connected to a hydraulic pipeline in the chassis (1).

7. A steel bar bending device with surface rust removal function according to claim 6, characterized in that: The hose connected to the hydraulic bag is a bellows structure, and the cross section of the oil ring (14) is "C" shaped and its opening faces the transfer shaft (13).

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