Automatic bending, punching and welding production line for ironing hangers

Abstract

The invention discloses an automatic bending, punching and welding production line for ironing hangers. The automatic bending, punching and welding production line comprises a first feeding mechanism, a second feeding mechanism and a bending device. A first welding mechanism, a second welding mechanism and a third welding mechanism are arranged in the welding device, and a welding assembly and a maintaining assembly are arranged in the third welding mechanism. According to the automatic bending, punching and welding production line for the ironing table, automatic bending and welding operation is achieved through the bending device and the welding device, the production cost is further reduced, the welding precision is improved, and the production time is shortened. The position of the ironing table can be limited through the cooperation maintaining assembly, electric connection of the third welding mechanism is kept while the ironing table is limited, the third welding mechanism can be powered on only after the position of the ironing table is limited to be stable, welding safety is guaranteed, automatic power-on is achieved, and automatic bending and welding operation is matched; the forming time of the ironing table is shortened.

Description

Technical Field

[0001] This invention relates to welding technology, and more particularly to an automatic bending, punching, and welding production line for ironing hangers. Background Technology

[0002] Ironing racks are primarily used in conjunction with steam irons to facilitate the ironing of clothes hung on them. The manufacturing process of ironing racks involves welding together multiple rods of varying lengths and shapes. This welding process requires loading, transferring, welding, and securing the rods. Manual welding would require two to three employees, resulting in low efficiency, inconsistent precision, and potential health risks for workers, including electric shock if not performed correctly. Therefore, an automated welding production line capable of bending and welding ironing racks is needed. Summary of the Invention

[0003] To address the shortcomings of the existing technology, this invention proposes an automatic bending, punching, and welding production line for ironing hangers.

[0004] An automatic bending, punching, and welding production line for ironing hangers, characterized in that it includes: First feeding mechanism; Second feeding mechanism; Bending device; A welding apparatus, comprising a first welding mechanism, a second welding mechanism, and a third welding mechanism, wherein the third welding mechanism comprises a welding component and a retaining component, the retaining component being used to support and limit the position of the ironing hanger, and the retaining component comprising: A retainer, wherein the retainer has a mounting area in the middle, and the mounting area has symmetrically arranged thickened parts, and the thickened parts have a pushing arc surface; A support seat is set in the installation area. Multiple springs are provided between the support seat and the retaining seat. The support seat is provided with symmetrically arranged retaining members. The retaining members are hinged to the support seat by hinge rods. A clamping area is formed between the retaining members. The ironing rack is set in the clamping area. An elastic element is hinged in the middle of the support base. The elastic element is set in the middle of the support base by a mounting rod. The lower end of the elastic element is provided with a first electrical contact plate, and the lower end of the first electrical contact plate is provided with a second electrical contact plate. When the ironing rack is pushed into the clamping area, the bearing seat compresses the spring, the pushing arc surface pushes the retainer to clamp the ironing rack, and the bearing drives the elastic element to move downward, keeping the first and second electrical contact plates in contact to achieve electrical connection.

[0005] In this invention, the retaining seat is composed of a base plate and baffles symmetrically arranged on the base plate. The mounting area is formed between the baffles. A support plate is provided on the baffle. The support plate is located at the lower end of the thickened part. The upper end of the baffle forms a first movable area, and the lower end forms a second movable area. The support plate is provided with a positioning post that cooperates with a spring.

[0006] In this invention, the support seat is composed of a support part, a sliding part and a pressure part. The sliding part is provided with symmetrically arranged sliding protrusions, the thickened part is provided with sliding grooves that cooperate with the sliding protrusions, the pressure part is provided with multiple positioning holes, the support seat is provided with a receiving chamber in the middle, and the elastic element is disposed in the receiving chamber.

[0007] In this invention, the sliding part is provided with symmetrically arranged hinge parts, the hinge parts are provided with hinge holes in the middle that cooperate with the hinge rod, and the hinge parts and the hinge parts are provided with a blocking slope and a blocking arc surface.

[0008] In this invention, the elastic element is composed of a helical segment and a rotationally symmetrically arranged limiting arm. The limiting arm is disposed at both ends of the helical segment and is composed of an extension segment, an inclined segment, a first fixing segment, a second fixing segment, and a third fixing segment. A fixing area is formed between the first fixing segment and the third fixing segment. A through hole is formed in the middle of the helical segment, and the mounting rod is disposed in the through hole.

[0009] In this invention, the first electrical contact plate is provided with a mounting groove, a positioning groove and multiple limiting holes. The mounting groove consists of a connecting area and a strip area arranged in a rotational symmetry. The spiral segment is located in the connecting area, the inclined segment is located in the strip area, the second fixing segment is located in the limiting holes, and the first electrical contact plate is set in the fixed area.

[0010] In this invention, the second contact plate is provided with a protrusion, and an avoidance area is formed between the protrusions. The protrusion is provided with a plurality of limiting posts that cooperate with the limiting holes.

[0011] In this invention, the retaining member consists of a hinge portion, a deformation arm, and a retaining end, wherein the deformation arm connects the hinge portion and the retaining end.

[0012] In this invention, the retaining end is composed of a first connecting part, a second connecting part, and an arc-shaped part, wherein the arc-shaped part connects the first connecting part and the second connecting part, and a compression region is formed between the first connecting part and the second connecting part.

[0013] In this invention, the second connecting part is provided with a retaining arc groove that cooperates with the ironing rack and a contact surface that contacts the support seat.

[0014] The automatic bending, punching, and welding production line for ironing racks according to this invention has the following advantages: This production line automates bending and welding operations through a bending device and a welding device, further reducing production costs, improving welding accuracy, and shortening production time. Furthermore, the retaining component can also limit the position of the ironing rack, maintaining the electrical connection of the third welding mechanism while restricting the ironing rack. This ensures that the third welding mechanism is energized only after the ironing rack's position is stabilized, guaranteeing welding safety and enabling automatic energization. Combined with automated bending and welding operations, this accelerates the forming time of the ironing rack. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the automatic bending, punching, and welding production line for ironing hangers according to the present invention. Figure 2 This is a schematic diagram of the third welding mechanism and holding assembly structure in this invention; Figure 3 for Figure 2 A schematic diagram of the third welding mechanism in the diagram; Figure 4 for Figure 2 A schematic diagram of the retaining component structure; Figure 5 This is a schematic diagram showing the installation state of the retaining component and the ironing hanger structure in this invention; Figure 6 for Figure 4 Main perspective view; Figure 7 for Figure 4 Exploded view; Figure 8 for Figure 7 Perspective view of the retainer structure in the middle; Figure 9 for Figure 7 Perspective view of the first and second electrical boards in the diagram; Figure 10 for Figure 7 Schematic diagram of the elastic element and mounting rod structure in the middle; Figure 11 for Figure 10 The main view; Figure 12 for Figure 7 A schematic diagram of the bearing seat structure in the diagram; Figure 13 for Figure 12 Main perspective view; Figure 14 for Figure 13 Enlarged view of section A in the image; Figure 15 for Figure 7 A schematic diagram of the retainer structure in the middle; Figure 16 for Figure 15 A schematic diagram of the structure in another direction; Figure 17 for Figure 15 The main view.

[0016] In the diagram: 1. First feeding mechanism; 2. Second feeding mechanism; 3. Bending device; 4. Welding device; 5. Ironing rack; 6. Vertical rod; 7. Horizontal rod; 8. Third welding mechanism; 9. Connector; 10. First electrode; 11. Second electrode; 12. First cylinder; 13. Second cylinder; 14. Motor; 15. First pressure component; 16. Second pressure component; 17. Third pressure component; 18. Bending section; 19. Vertical section; 20. Holding assembly; 21. Rotating shaft; 22. Robotic arm; 23. Worktable; 24. Bearing frame; 25. Bearing seat; 26. Spring; 27. Frame; 28. Pushing arc surface; 29. ​​Elastic component; 30. First electrical contact plate; 31. Second electrical contact plate; 32. First welding mechanism; 33. Second welding mechanism; 34. Welding assembly; 35. Holding seat; 36. Holding component; 37. Base plate; 38. Baffle; 39. Installation area; 40. Support plate; 41. Thickened part; 42. First movable area; 42. Second movable area. 3. Positioning pin 44, cover plate 45, deformation arm 46, hinge rod 47, clamping area 48, bearing part 49, sliding part 50, pressure part 51, upper end face 52, sliding protrusion 53, sliding groove 54, hinge part 55, hinge hole 56, blocking slope 57, blocking arc surface 58, clearance space 59, holding end 60, first connecting part 61, second connecting part 62, arc-shaped part 63, compression area 64, holding arc groove 6 5. Contact surface 66, positioning hole 67, receiving chamber 68, mounting rod 69, spiral section 70, limiting arm 71, extension section 72, inclined section 73, first fixed section 74, second fixed section 75, third fixed section 76, fixed area 77, through hole 78, avoidance area 79, mounting groove 80, positioning groove 81, limiting hole 82, connecting area 83, strip area 84, contact slope 85, protrusion 86, limiting post 87. Detailed Implementation

[0017] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention.

[0018] like Figures 1 to 17 As shown, the automatic bending, punching and welding production line for ironing racks of the present invention includes a first feeding mechanism 1, a second feeding mechanism 2, a bending device 3 and a welding device 4. The first feeding mechanism 1 cooperates with the bending device 3 to feed the vertical rod 6 in the ironing rack 5. The second feeding mechanism 2 cooperates with the welding device 4 to feed the horizontal rod 7 in the ironing rack 5. Then, the horizontal rod 7 and the vertical rod 6 are welded by the third welding mechanism 8.

[0019] The ironing rack 5 consists of a horizontal bar 7 and symmetrically arranged vertical bars 6. The vertical bars 6 are connected by two connecting bodies 9 to reinforce each other. The part of the connecting body 9 used for feeding materials is not shown in the accompanying drawings of this application; however, it can be performed using existing technology.

[0020] The third welding mechanism 8 includes a first electrode 10, a second electrode 11, a first cylinder 12, a second cylinder 13, a motor 14, a first pressure component 15, a second pressure component 16, and a third pressure component 17. The first electrode 10 and the second electrode 11 are each provided in two locations, and the first electrode 10 and the second electrode 11 are symmetrically arranged. The first cylinder 12 pushes the first pressure component 15 to move closer to the second pressure component 16 and the third pressure component 17. The crossbar 7 is positioned between the first pressure component 15, the second pressure component 16, and the third pressure component 17. The first electrode 10 is connected to the first pressure component 15, and the second electrode 11 is connected to the second pressure component 16, ensuring that the contact portion between the crossbar 7 and the vertical bar 6 can be welded.

[0021] The second pressure-applying component 16 and the third pressure-applying component 17 are arranged opposite each other. The bent section 18 of the vertical rod 6 is located between the second pressure-applying component 16 and the third pressure-applying component 17, while the vertical section 19 is limited by the holding component 20. The second cylinder 13 pushes the second pressure-applying component 16. The motor 14 is equipped with a rotating shaft 21, which has threads in different directions, allowing it to drive the third pressure-applying component 17 to move. During operation, the second cylinder 13 and the motor 14 are started simultaneously to keep the second pressure-applying component 16 and the third pressure-applying component 17 close to each other. The bent section 18 is limited by the second pressure-applying component 16 and the third pressure-applying component 17. Then, the robotic arm 22 clamps the horizontal rod 7 to a position between the first pressure-applying component 15, the second pressure-applying component 16, and the third pressure-applying component 17. The first pressure-applying component 15 applies pressure to the horizontal rod 7 to maintain pressure, which facilitates welding.

[0022] The third welding mechanism 8 is also provided with two support frames 24 on the workbench 23. The support frames 24 are used to cooperate with the holding component 20 to support the ironing rack 5 stably. The highest surface of the support frame 24 is lower than the highest surface of the support seat 25. When the ironing rack 5 is placed on the support seat 25, the mechanical arm 22 clamps the ironing rack 5 on the support seat 25 and applies pressure, which pushes the support seat 25 downward and compresses the spring 26, thereby keeping the highest surface of the support seat 25 and the highest surface of the support frame 24 on the same horizontal plane.

[0023] A frame 27 is provided on the worktable 23, and a robotic arm 22 is mounted on the frame 27 and can slide on the frame 27 to clamp and transfer the vertical rod 6. A retainer 35 is provided on the worktable 23.

[0024] During welding, energization is maintained on both the horizontal bar 7 and the vertical bar 6, and pressure is applied to both to melt the contact area or bring it to a plastic state. Then, the power is cut off while pressure is continuously applied, allowing the molten metal to cool and form a permanent connection. Resistance welding can be used for this process.

[0025] When the ironing rack 5 is pushed into the clamping area 48, the bearing seat 25 compresses the spring 26, and pushes the arc surface 28 to push the retaining member 36 to clamp the ironing rack 5. The bearing seat 25 drives the elastic member 29 to move downward, keeping the first electrical plate 30 and the second electrical plate 31 in contact, thus realizing electrical connection.

[0026] The welding device 4 includes a first welding mechanism 32, a second welding mechanism 33, and a third welding mechanism 8. The first feeding mechanism 1, the second feeding mechanism 2, and the bending device 3 can all utilize existing technologies. Similarly, the first welding mechanism 32 and the second welding mechanism 33 in the welding device 4 can also utilize existing technologies, so they will not be described in detail here. The third welding mechanism 8 includes a welding component 34 and a holding component 20. The holding component 20 is used to support and limit the position of the ironing rack 5.

[0027] The retaining assembly 20 includes a retaining seat 35, a bearing seat 25, an elastic element 29, a retaining element 36, a first contact plate 30, and a second contact plate 31. The bearing seat 25 is located in the middle of the retaining seat 35 and can slide up and down in the middle position. The retaining element 36 is hinged to the bearing seat 25 and can rotate on the bearing seat 25. The symmetrically arranged retaining elements 36 clamp and limit the vertical rod 6. The elastic element 29 is used to limit the position of the first contact plate 30, allowing it to separate from the second contact plate 31. The first contact plate 30 and the second contact plate 31 are used to cut off the circuit of the first electrode 10 or the second electrode 11, ensuring that the first contact plate 30 and the second contact plate 31 can only contact each other after the positions of the two vertical rods 6 are limited, thus maintaining the circuit continuity of the first electrode 10 or the second electrode 11.

[0028] The retaining seat 35 consists of a base plate 37 and baffles 38 symmetrically arranged on the base plate 37. An installation area 39 is formed between the baffles 38. A support plate 40 is provided on the baffles 38 and is located within the installation area 39. The support plate 40 is located at the lower end of the thickened portion 41. The upper end of the baffles 38 forms a first movable area 42, and the lower end forms a second movable area 43. A positioning post 44 that cooperates with the spring 26 is provided on the support plate 40. The spring 26 and the positioning post 44 are located within the first movable area 42, and the first contact plate 30 and the second contact plate 31 are located within the second movable area 43.

[0029] A cover plate 45 is provided on the baffle 38, which is used to restrict the position of the retainer 36.

[0030] A symmetrically arranged thickened portion 41 is provided within the installation area 39, and a pushing arc surface 28 is provided on the thickened portion 41. The pushing arc surface 28 is used to push the deformation arm 46 on the retainer 36, causing it to deform under force.

[0031] The support seat 25 is set in the installation area 39. Multiple springs 26 are provided between the support seat 25 and the retaining seat 35. The support seat 25 is provided with symmetrically arranged retaining members 36. The retaining members 36 are hinged to the support seat 25 through the hinge rod 47. A clamping area 48 is formed between the retaining members 36. The ironing rack 5 is set in the clamping area 48.

[0032] The support base 25 consists of a support part 49, a sliding part 50, and a pressure part 51. The upper end surface 52 of the support part 49 cooperates with the highest surface of the bracket to support the ironing rack 5. The sliding part 50 is provided with symmetrically arranged sliding protrusions 53, and the thickened part 41 is provided with sliding grooves 54 that cooperate with the sliding protrusions 53. The sliding protrusions 53 and the sliding grooves 54 restrict the position of the support base 25, allowing it to slide smoothly up and down within the installation area 39.

[0033] The sliding part 50 is provided with symmetrically arranged hinge parts 55. A hinge hole 56, which mates with the hinge rod 47, is provided in the middle of each hinge part 55. A blocking inclined surface 57 and a blocking arc surface 58 are provided between the hinge parts 55. The width of the bearing part 49 is smaller than the width of the sliding part 50, creating clearance spaces 59 on both sides of the bearing part 49 for the deformable arm 46 to enter. The blocking arc surface 58 and the blocking inclined surface 57 block the deformable arm 46, causing the lower end of the deformable arm 46 to be stressed, while the upper end of the deformable arm 46 can be pushed by the pushing arc surface 28. The upper end of the deformable arm 46 deforms under stress, keeping the deformable arm 46 bent, which drives the holding end 60 at the upper end of the deformable arm 46 to move into the clamping area 48.

[0034] The retaining member 36 consists of a hinge portion 55, a deformation arm 46, and a retaining end 60. The deformation arm 46 connects the hinge portion 55 and the retaining end 60. The retaining end 60 consists of a first connecting portion 61, a second connecting portion 62, and an arc-shaped portion 63. The arc-shaped portion 63 connects the first connecting portion 61 and the second connecting portion 62. A compression region 64 is formed between the first connecting portion 61 and the second connecting portion 62. When the second connecting portion 62 contacts the vertical rod 6, the distance between the two vertical rods 6 is greater than the distance between the second connecting portion 62 and the vertical rod 6, so the second connecting portion 62 is squeezed into the compression region 64.

[0035] The second connecting part 62 is provided with a retaining arc groove 65 that cooperates with the ironing rack 5 and a contact surface 66 that contacts the support seat 25. The vertical rod body 6 is disposed in the retaining arc groove 65. The contact surface 66 is used to contact the upper end surface 52 of the support part 49 and can slide on the upper end surface 52.

[0036] Multiple positioning holes 67 are provided on the pressure-applying part 51, and the positioning holes 67 cooperate with the positioning pins 44. A receiving chamber 68 is provided in the middle of the bearing seat 25, and the elastic element 29 is disposed in the receiving chamber 68.

[0037] An elastic element 29 is hinged in the middle of the support base 25, and is positioned in the middle of the support base 25 via a mounting rod 69. The elastic element 29 consists of a helical segment 70 and rotationally symmetrically arranged limiting arms 71, which are located at both ends of the helical segment 70. The limiting arms 71 consist of an extension segment 72, an inclined segment 73, a first fixing segment 74, a second fixing segment 75, and a third fixing segment 76. A fixing area 77 is formed between the first fixing segment 74 and the third fixing segment 76. A through hole 78 is formed in the middle of the helical segment 70, and the mounting rod 69 is disposed in the through hole 78. The mounting rod 69 and the through hole 78 are in tangential contact, and the diameter of the mounting rod 69 is smaller than the inner diameter of the through hole 78.

[0038] The height of the fixed area 77 is greater than the thickness of the first electrical plate 30, so that the inclined section 73 can be rotated by the force change of the first fixed section 74, the second fixed section 75 and the third fixed section 76.

[0039] like Figure 10 As shown, the inclined segment 73 in the elastic member 29 is in an inclined state at this time. This is the state after being subjected to force. Since the mounting rod 69 is mounted on the bearing seat 25, the bearing seat 25 is pushed upward by the spring 26, causing the bearing seat 25 to drive the spiral segment 70 on the elastic member 29 to move upward. This causes the first electrical contact plate 30 at the lower end of the elastic member 29 to also be driven upward. However, there is a certain distance between the bearing seat 25 and the first electrical contact plate 30, so the originally horizontal inclined segment 73 changes to an inclined state.

[0040] When the support seat 25 is pressed by the ironing rack 5 and the robotic arm 22, the spring 26 is compressed, and the support seat 25 moves the elastic element 29 downward. The first contact plate 30 is also moved downward, maintaining contact between the first contact plate 30 and the second contact plate 31. The distance between the first contact plate 30 and the second contact plate 31 is less than the distance between the pressure part 51 and the support plate 40. Therefore, the mounting rod 69 on the support seat 25 pushes the elastic element 29, helping it return to its original state. After the first contact plate 30 and the second contact plate 31 come into contact, the second contact plate 31 has a clearance area 79, the height of which is greater than the diameter of the first fixed section 74. After contact, the first contact plate 30 and the second contact plate 31 are pushed by the support seat 25, and the elastic element 29 continues to press on the first contact plate 30, making the contact between the first contact plate 30 and the second contact plate 31 more stable.

[0041] The lower end of the elastic element 29 is provided with a first electrical contact plate 30, and the lower end of the first electrical contact plate 30 is provided with a second electrical contact plate 31. The first electrical contact plate 30 is provided with a mounting groove 80, a positioning groove 81, and multiple limiting holes 82. The mounting groove 80 is composed of a connecting area 83 and a strip area 84 arranged in a rotational symmetrical manner. The spiral section 70 is located in the connecting area 83, the inclined section 73 is located in the strip area 84, and the second fixing section 75 is located in the limiting hole 82. The limiting hole 82 is provided with a contact inclined surface 85 that cooperates with the second fixing section 75. The first electrical contact plate 30 is set in the fixing area 77.

[0042] The second electrical board 31 is provided with a protrusion 86, and a clearance area 79 is formed between the protrusions 86. The protrusions 86 are provided with multiple parts that cooperate with the limiting holes 82.

[0043] The robotic arm 22 clamps the two welded vertical rods 6 and moves them to the upper end of the holding assembly 20. It then places them within the clamping area 48 and applies pressure to the vertical rods 6, compressing the spring 26. The support seat 25 moves downwards, pushing the arc surface 28 to push the retainer 36, which clamps the vertical rods 6. The support seat 25 also moves the elastic element 29 downwards, causing the elastic element 29 to electrically connect the first electrode plate 30 and the second electrode plate 31. Finally, the first cylinder 12, the second cylinder 13, and the motor 14 are activated to bring the horizontal rod 7 and the vertical rod 6 closer together and apply pressure. Finally, the first electrode 10 and the second electrode 11 are energized to complete the welding. The robotic arm 22 then clamps the welded ironing rack 5 and transfers it to the material storage location.

[0044] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. An automatic bending, punching, and welding production line for ironing hangers, characterized in that, include: First feeding mechanism; Second feeding mechanism; Bending device; A welding apparatus, comprising a first welding mechanism, a second welding mechanism, and a third welding mechanism, wherein the third welding mechanism comprises a welding component and a retaining component, the retaining component being used to support and limit the position of the ironing hanger, and the retaining component comprising: A retainer, wherein the retainer has a mounting area in the middle, and the mounting area has symmetrically arranged thickened parts, and the thickened parts have a pushing arc surface; A support seat is set in the installation area. Multiple springs are provided between the support seat and the retaining seat. The support seat is provided with symmetrically arranged retaining members. The retaining members are hinged to the support seat by hinge rods. A clamping area is formed between the retaining members. The ironing rack is set in the clamping area. An elastic element is hinged in the middle of the support base. The elastic element is set in the middle of the support base by a mounting rod. The lower end of the elastic element is provided with a first electrical contact plate, and the lower end of the first electrical contact plate is provided with a second electrical contact plate. When the ironing rack is pushed into the clamping area, the bearing seat compresses the spring, the pushing arc surface pushes the retainer to clamp the ironing rack, and the bearing drives the elastic element to move downward, keeping the first and second electrical contact plates in contact to achieve electrical connection.

2. The automatic bending, punching, and welding production line for ironing hangers according to claim 1, characterized in that, The retaining seat consists of a base plate and baffles symmetrically arranged on the base plate. The mounting area is formed between the baffles. A support plate is provided on the baffle. The support plate is located at the lower end of the thickened part. The upper end of the baffle forms a first movable area, and the lower end forms a second movable area. The support plate is provided with a positioning post that cooperates with a spring.

3. The automatic bending, punching, and welding production line for ironing hangers according to claim 1, characterized in that, The support seat is composed of a support part, a sliding part and a pressure part. The sliding part is provided with symmetrically arranged sliding protrusions, the thickened part is provided with sliding grooves that cooperate with the sliding protrusions, the pressure part is provided with multiple positioning holes, and the support seat is provided with a receiving chamber in the middle, and the elastic element is disposed in the receiving chamber.

4. The automatic bending, punching, and welding production line for ironing hangers according to claim 3, characterized in that, The sliding part is provided with symmetrically arranged hinge parts, and the hinge parts are provided with hinge holes in the middle that cooperate with the hinge rod. There are blocking slopes and blocking arc surfaces between the hinge parts.

5. The automatic bending, punching, and welding production line for ironing hangers according to claim 1, characterized in that, The elastic element consists of a helical segment and a rotationally symmetrically arranged limiting arm. The limiting arm is located at both ends of the helical segment and is composed of an extension segment, an inclined segment, a first fixed segment, a second fixed segment, and a third fixed segment. A fixed area is formed between the first fixed segment and the third fixed segment. A through hole is formed in the middle of the helical segment, and the mounting rod is disposed in the through hole.

6. The automatic bending, punching, and welding production line for ironing hangers according to claim 5, characterized in that, The first electrical contact plate is provided with a mounting groove, a positioning groove and multiple limiting holes. The mounting groove consists of a connecting area and a rotationally symmetrical strip area. The spiral segment is located in the connecting area, the inclined segment is located in the strip area, the second fixing segment is located in the limiting holes, and the first electrical contact plate is located in the fixing area.

7. The automatic bending, punching, and welding production line for ironing hangers according to claim 6, characterized in that, The second contact plate is provided with a protrusion, and a clearance area is formed between the protrusions. The protrusion is provided with multiple limiting posts that cooperate with the limiting holes.

8. The automatic bending, punching, and welding production line for ironing racks according to claim 1, characterized in that, The retainer consists of a hinge, a deformation arm, and a retaining end, wherein the deformation arm connects the hinge and the retaining end.

9. The automatic bending, punching, and welding production line for ironing hangers according to claim 8, characterized in that, The retaining end is composed of a first connecting part, a second connecting part, and an arc-shaped part. The arc-shaped part connects the first connecting part and the second connecting part, and a compression area is formed between the first connecting part and the second connecting part.

10. The automatic bending, punching, and welding production line for ironing hangers according to claim 9, characterized in that, The second connecting part is provided with a retaining groove that cooperates with the ironing rack and a contact surface that contacts the support seat.

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