Suitable for bending equipment for producing steel strips of different diameters

Abstract

This application relates to equipment for bending steel strips of different diameters, specifically to equipment for processing flange bottom covers. It includes a frame, with an unwinding box at one end for holding coiled steel strips. A flange plate is mounted on the top wall of the frame, and a set of wheels for flangering and conveying the steel strip is mounted on the side wall of the flange plate. The folded side of the steel strip forms an abutment plate, and the other part of the steel strip forms a cover plate. A worktable is mounted at one end of the frame, with bending wheels and guide wheels connected to its surface. An adjusting cylinder is mounted on one side of the bending wheels, and a diameter-changing platform is mounted on the piston rod end wall of the adjusting cylinder. A diameter-changing wheel is rotatably connected to the surface of the diameter-changing platform, which has a diameter-changing cavity. A driving assembly is located within the diameter-changing cavity, driving the diameter-changing wheel to move relative to the diameter-changing platform to change the diameter of the produced flange bottom cover. A cutting device is mounted on one side of the worktable. This application has the effect of producing flange bottom covers of different diameters, improving productivity.

Description

Technical Field

[0001] This application relates to the technical field of flange bottom cover processing equipment, and in particular to bending equipment suitable for producing steel strips of different diameters. Background Technology

[0002] A flange is a connecting component used to join two workpieces and plays an important role in the mechanical field.

[0003] A flange bottom cover is designed in the related technology, referring to Figure 1 Made of steel strip 1 through flanging and bending, it includes a cover plate 11 and an abutment piece 12. Both the cover plate 11 and the abutment piece 12 are arranged in a ring shape. The abutment piece 12 is integrally formed on the inner wall of the cover plate 11 and is arranged along the circumferential direction of the inner wall of the cover plate 11. After the flange is connected, by covering the flange surface with the bottom cover, the abutment piece 12 can abut against the inner wall of the flange, thereby protecting the flange.

[0004] Regarding the aforementioned technologies, the inventors discovered that since flanges come in various sizes, different sizes of bottom covers are also needed to accommodate different flanges. The main difference in flange size lies in the diameter. Therefore, when producing bottom covers, the size of the bottom cover needs to be adjusted according to the size of different types of flanges. However, existing technologies can mostly only produce bottom covers of uniform specifications, resulting in poor applicability, requiring multiple production machines of different specifications, leading to high costs and low economic efficiency. Therefore, improvements are needed. Summary of the Invention

[0005] In order to enable the same equipment to produce flange bottom covers of different diameters and improve applicability and economic efficiency, this application provides a steel strip bending equipment suitable for producing different diameters.

[0006] The technical solution provided in this application for bending equipment suitable for producing steel strips of different diameters adopts the following:

[0007] This equipment is suitable for producing steel strip bending machines of different diameters. It includes a frame, with an unwinding box at one end for holding coiled steel strip. A flange plate is installed on the top wall of the frame, and a wheel assembly is installed on the side wall of the flange plate for conveying and flangering the steel strip. The folded side of the steel strip forms an abutment plate, and the other part of the steel strip forms a cover plate. A worktable is installed at the end of the frame away from the unwinding box. Bending wheels and guide wheels are rotatably connected to the surface of the worktable. An adjusting cylinder is installed on the side of the bending wheel away from the frame. A diameter-changing platform is installed on the piston rod end wall of the adjusting cylinder, and a diameter-changing wheel is rotatably connected to the surface of the diameter-changing platform. The adjusting cylinder drives the diameter-changing wheel to abut against the bending wheel. A diameter-changing cavity is opened inside the diameter-changing platform, and a driving assembly is installed inside the cavity. The driving assembly drives the diameter-changing wheel to move relative to the diameter-changing platform to change the diameter of the produced flange bottom cover. A cutting device is installed on one side of the worktable for cutting the bent flange bottom cover.

[0008] By adopting the above technical solution, one end of the steel strip extends from the unwinding box and, through the action of the wheel set, folds the side of the steel strip, so that the folded part of the steel strip can form a cover plate and abutment piece. During the folding process of the steel strip, the wheel set will also drive the steel strip to move towards the worktable. When the steel strip passes between the bending wheel and the guide wheel, the squeezing of the two wheels can make the folding of the abutment piece more stable. At the same time, through the drive component and the adjusting cylinder, the contact point between the reducing wheel and the bending wheel can be changed, so that the bending amplitude of the steel strip can be changed when the steel strip passes through the bending wheel and the reducing wheel. This allows flange bottom covers of different diameters to be produced. Thus, the purpose of producing flange bottom covers of different diameters with the same production equipment is achieved, thereby improving production efficiency, reducing economic costs, and having high practicality.

[0009] Preferably, the driving assembly includes a sliding rod, a rotating plate, a driving motor, a driving gear, and several driven gear blocks. The surface of the diameter-changing platform has an adjustment groove, which is arc-shaped and communicates with the diameter-changing cavity. One end of the sliding rod is inserted into the adjustment groove, and the diameter-changing wheel is rotatably connected to the end of the sliding rod extending out of the adjustment groove. The rotating plate is connected to the end of the sliding rod inserted into the adjustment groove. The inner wall of the diameter-changing cavity opposite to the bending wheel has a through groove along its thickness direction. The end of the rotating plate opposite to the sliding rod is rotatably connected to the inner wall of the through groove. The end wall of the rotating plate extending out of the through groove has an arc-shaped driving surface. Several driven gear blocks are connected to the surface of the driving surface. The driving motor is connected to the side wall of the diameter-changing platform. The driving gear is sleeved on the peripheral wall of the output shaft of the driving motor and meshes with the driven gear blocks.

[0010] By adopting the above technical solution, the drive motor is started, and the output shaft of the drive motor will drive the drive gear to rotate. Through the meshing relationship between the drive gear and the driven gear block, the rotating plate can be driven to rotate around the connection point with the inner wall of the connecting groove, so that the sliding rod can move along the length direction of the adjusting groove, thereby changing the relative position of the diameter changing wheel and the diameter changing table. In conjunction with the adjusting cylinder, the contact point between the diameter changing wheel and the bending wheel can be changed, thereby changing the diameter of the produced flange bottom cover. The structure is simple, easy to implement, and has high practicality.

[0011] Preferably, the inner wall of the variable diameter cavity is rotatably connected to two sets of buffer knobs, and the sliding rod abuts between the two buffer knobs. Each buffer knob is provided with a reset torsion spring at the rotatable connection point with the inner wall of the variable diameter cavity. One end of the reset torsion spring is connected to the inner wall of the variable diameter cavity, and the other end is connected to the corresponding buffer knob. The two buffer knobs rotate toward each other under the drive of their respective reset torsion springs. The inner wall of the variable diameter cavity is provided with a buffer pad.

[0012] By adopting the above technical solution and setting a buffer knob and a buffer pad, the sliding rod can be damped and buffered when it moves, so as to prevent the sliding rod from exceeding the predetermined stroke due to excessive rotation of the drive motor, which would cause the bending wheel and the variable diameter wheel to collide. This can improve the safety of the bending equipment of this application during operation.

[0013] Preferably, the wheel set includes a rolling wheel and a flanging wheel, both of which are rotatably connected to a flanging plate. The gap between the rolling wheel and the flanging wheel allows a steel strip to pass through. A flanging piece is provided at the end of the flanging wheel away from the flanging plate. The flanging piece is arranged along the circumferential direction of the flanging wheel, and the flanging piece and the end of the rolling wheel away from the flanging plate form a flanging channel.

[0014] By adopting the above technical solution, the steel belt is transmitted between the rolling wheel and the flanging wheel. Through the squeezing of the rolling wheel and the flanging wheel, the part of the steel belt that is about to form the cover plate can be made more compact, while the part of the steel belt that extends out of the rolling wheel will extend into the flanging channel, and the flanging plate will abut against the side of the steel belt, so that the steel belt can be flanged when passing through the wheel set.

[0015] Preferably, the wheel set is provided in several groups, and the several groups of wheel sets are evenly distributed along the length direction of the flange plate. The diameter of the flange plate of the adjacent wheel set increases sequentially along the conveying direction of the steel belt, and the distance between the flange plate of the adjacent wheel set and the end wall of the corresponding rolling wheel gradually decreases along the conveying direction of the steel belt.

[0016] By adopting the above technical solution and setting up several sets of wheel sets, the formed cover plate and abutment plate can be more stable when the steel belt is conveyed along the flange plate. By gradually increasing the diameter of the flange plate and gradually narrowing the flange channel, the abutment plate formed by the folding can be more three-dimensional, thereby improving the quality of the produced flange bottom cover.

[0017] Preferably, each of the wheel sets is provided with a limiting frame on one side. A first limiting wheel is rotatably connected to the inner wall of the limiting frame near the flange plate. An adjusting rod is provided on the limiting frame away from the end wall. The adjusting rod is threadedly connected to the limiting frame. One end of the adjusting rod passes through the limiting frame and is inserted into the limiting frame. A rotating frame is threadedly connected to the end of the adjusting rod near the first limiting wheel. The rotating frame is slidably connected to the inner wall of the limiting frame. A second limiting wheel is rotatably connected inside the rotating frame. The steel strip passes through the gap between the first limiting wheel and the second limiting wheel.

[0018] By adopting the above technical solution, the setting of the limiting frame can restrict the movement path of the steel strip. By changing the distance between the first limiting wheel and the second limiting wheel, the abutment piece of the bent steel strip can be kept in a folded state. When the steel strip can move between two adjacent sets of wheels, the probability of the abutment piece returning to its original state can be reduced, which helps to improve the quality of the flange bottom cover produced.

[0019] Preferably, the cutting device includes a cutting seat, a cutting cylinder, and a cutting tool. The cutting seat is disposed on one side of the bending wheel, and the cutting cylinder is disposed on the side wall of the cutting seat near the bending wheel. The piston rod of the cutting cylinder is disposed towards the flange bottom cover after bending. The cutting tool is connected to the end wall of the piston rod of the cutting cylinder. The end of the cutting tool has a horizontal cutting edge and a vertical cutting edge. After the cutting tool moves, the horizontal cutting edge cuts the cover plate, and the vertical cutting edge cuts the abutment piece.

[0020] By adopting the above technical solution, once the steel strip passes through the bending wheel and forms a complete closed loop, the cutting cylinder can be activated. This causes the cutting cylinder to move the cutting tool towards the bending wheel. Through the horizontal and vertical cutting edges, a closed-loop flange bottom cover is obtained by cutting the cover plate and the abutment piece respectively. Subsequently, only the two ends of the closed-loop structure need to be welded to obtain the finished flange bottom cover. The cutting tool of this application, by setting horizontal and vertical cutting edges respectively, can ensure the cutting quality of the steel strip, thereby making the production of flange bottom covers more precise and efficient.

[0021] Preferably, a slide rail is provided on one side of the workbench, the slide rail is positioned toward the bending wheel, and the cutting seat slides along the length of the slide rail.

[0022] By adopting the above technical solution, the position of the cutting device can be adjusted by setting the slide rail to adapt to the cutting of flange bottom covers of different diameters, thereby improving the flexibility and applicability of the cutting device of this application, and having a high degree of convenience and economic benefits.

[0023] Preferably, the cutting device further includes a supporting blade, the steel strip abuts against the surface of the supporting blade, the surface of the supporting blade is provided with a cutting opening for the cutting tool to abut, and the side wall of the cutting device is provided with a linkage for driving the supporting blade to move along the movement direction of the cutting tool.

[0024] By adopting the above technical solution, the supporting cutter can provide support for the flange bottom cover when the cutting device cuts the flange bottom cover, thereby improving the problem of the flange bottom cover lifting up due to lack of contact during cutting. This improves the accuracy of flange bottom cover cutting and production quality.

[0025] Preferably, the linkage includes a drive rack, a driven gear, a driving bevel gear, a driven bevel gear, a rotating screw, and a connecting sleeve. The drive rack is connected to the side wall of the piston rod of the cutting cylinder. The driven gear is rotatably connected to the outer wall of the cutting seat and meshes with the drive rack. The driving bevel gear is connected to the end wall of the driven gear. The rotating screw is rotatably connected to one side of the cutting seat. The length direction of the rotating screw is consistent with the movement direction of the piston rod of the cutting cylinder. The driven bevel gear is sleeved on the peripheral wall of the rotating screw and meshes with the driving bevel gear. The connecting sleeve is threadedly connected to the peripheral wall of the rotating screw and is connected to the supporting cutter.

[0026] By adopting the above technical solution, when the cutting cylinder operates, the piston rod of the cutting cylinder will drive the drive rack to move together, thereby enabling the drive rack to mesh with the driven gear, which in turn drives the driven gear to rotate. Since the driven gear and the driving bevel gear are coaxially arranged, the driving bevel gear will rotate under the drive of the driven gear, and the driven bevel gear will also rotate, thereby realizing the rotation of the rotating screw. Thus, through the rotation of the connecting sleeve, the support cutter can be driven to move in the direction of the cutting tool while the cutting tool moves, thereby achieving precise cutting of the flange bottom cover. At the same time, the linkage of this application does not have a direct drive source, but shares the drive source with the cutting tool, which can save economic costs.

[0027] In summary, this application includes at least one of the following beneficial technical effects:

[0028] 1. One end of the steel strip extends from the unwinding box and passes through a wheel assembly. Under the action of the wheel assembly, the side of the steel strip is folded, so that the folded part of the steel strip forms a cover plate and abutment piece. During the folding process, the wheel assembly also moves the steel strip towards the worktable. When the steel strip passes between the bending wheel and the guide wheel, the compression of the two wheels makes the folding of the abutment piece more stable. At the same time, through the drive component and the adjusting cylinder, the contact point between the reducing wheel and the bending wheel can be changed, so that the bending amplitude of the steel strip can be changed when the steel strip passes through the bending wheel and the reducing wheel. This allows for the production of flange bottom covers of different diameters, thus achieving the purpose of producing flange bottom covers of different diameters with the same production equipment, improving production efficiency, reducing economic costs, and having high practicality.

[0029] 2. Once the steel strip passing through the bending wheel forms a complete closed loop, the cutting cylinder can be activated, causing it to move the cutting blades toward the bending wheel. The horizontal and vertical blades cut the cover plate and the abutment piece respectively. The sliding rail allows for adjustment of the cutting device's position to accommodate the cutting of flange bottom covers of different diameters. This improves the flexibility and applicability of the cutting device, offering greater convenience and economic benefits. Attached Figure Description

[0030] Figure 1 This is a schematic diagram of the steel strip structure in related technologies.

[0031] Figure 2 This is a schematic diagram of the structure of a bending equipment for producing steel strips of different diameters according to an embodiment of this application.

[0032] Figure 3 yes Figure 2 A magnified view of a portion of point A in the middle.

[0033] Figure 4 yes Figure 2 A magnified view of a section at point B.

[0034] Figure 5 This is a schematic diagram of the connection structure between the variable diameter table and the adjusting cylinder in an embodiment of this application.

[0035] Figure 6 This is a schematic diagram of the internal structure of the variable diameter stage according to an embodiment of this application.

[0036] Figure 7 This is a schematic diagram of the cutting device according to an embodiment of this application.

[0037] Figure 8 yes Figure 7 A magnified view of a section at point C.

[0038] Explanation of reference numerals in the attached drawings: 1. Steel strip; 11. Cover plate; 12. Abutment piece; 2. Frame; 21. Flanging plate; 3. Unwinding box; 4. Wheel set; 41. Rolling wheel; 42. Flanging wheel; 421. Flanging piece; 43. Flanging channel; 5. Worktable; 51. Bending wheel; 52. Guide wheel; 53. Adjusting cylinder; 54. Variable diameter table; 541. Variable diameter cavity; 542. Adjusting groove; 543. Connecting groove; 545. Buffer knob; 546. Return torsion spring; 547. Buffer pad; 55. Variable diameter wheel; 6. Drive assembly; 61. Sliding rod; 62. Rotating plate; 621. Drive surface; 63. Drive motor; 64. 65. Driven gear; 7. Driven gear block; 7. Cutting device; 71. Cutting seat; 72. Cutting cylinder; 73. Cutting tool; 731. Horizontal blade; 732. Vertical blade; 74. Slide rail; 75. Supporting tool; 751. Cutting opening; 76. Linkage component; 761. Driven rack; 762. Driven gear; 763. Driven bevel gear; 764. Driven bevel gear; 765. Rotating lead screw; 766. Connecting sleeve; 8. Limiting frame; 81. First limiting wheel; 82. Adjusting rod; 83. Rotating frame; 84. Second limiting wheel; 9. Inspection device; 91. Inspection table; 92. Inspection disc; 93. Locking component. Detailed Implementation

[0039] The following is in conjunction with the appendix Figure 1-8 This application will be described in further detail.

[0040] This application discloses embodiments applicable to bending equipment for producing steel strips of different diameters. (Refer to...) Figure 1 and Figure 2 This is a steel strip bending equipment suitable for producing steel strips of different diameters. It includes a frame 2 connected to the ground by anchor bolts. One end of the frame 2 is provided with an unwinding box 3. The top wall of the unwinding box 3 is open for placing the rolled steel strip 1. The unwinding box 3 is provided with a discharge port at one end near the frame 2 for unwinding the steel strip 1 and conveying the steel strip 1 toward the frame 2.

[0041] Reference Figure 2 and Figure 3 The top wall of the frame 2 is welded with a flange plate 21. The flange plate 21 is set along the length of the frame 2. Several sets of wheel sets 4 are set on the side wall of the flange plate 21. The wheel sets 4 are used to flange and transport the steel strip 1, so that the flanged part of the steel strip 1 can form an abutment piece 12, while the unflanged part can form a cover plate 11. Several sets of wheel sets 4 are evenly distributed along the length of the flange plate 21.

[0042] Reference Figure 3Each set of wheels 4 includes a rolling wheel 41 and a flanging wheel 42. Both the rolling wheel 41 and the flanging wheel 42 are rotatably connected to the flanging plate 21. The rolling wheel 41 is located above the flanging wheel 42. The steel belt 1 passes through the gap between the rolling wheel 41 and the flanging wheel 42. The end wall of the flanging wheel 42 facing away from the flanging plate 21 is integrally formed with a flanging piece 421 in the circumferential direction. The flanging piece 421 and the end of the rolling wheel 41 facing away from the flanging plate 21 form a flanging channel 43. When the steel belt 1 passes between the rolling wheel 41 and the flanging wheel 42, the part of the steel belt 1 exposed on the outer edge of the rolling wheel 41 will be abutted by the flanging wheel 42, thereby achieving the flanging of the steel belt 1. In this embodiment, the diameter of the flange 421 of the adjacent wheel set 4 increases sequentially along the conveying direction of the steel belt 1, and the length of the flange 421 of the adjacent wheel set 4 from the end wall of the corresponding rolling wheel 41 gradually decreases along the conveying direction of the steel belt 1. This allows the folded portion of the steel belt 1 to achieve stability of the folded state within a larger contact area with the flange 421 and a smaller space in the folding channel 43, thereby improving the quality of the produced flange bottom cover.

[0043] Reference Figure 3 Each set of wheels 4 has a corresponding limit frame 8 on one side. The limit frame 8 is welded to the side wall of the flange plate 21. A first limit wheel 81 is rotatably connected to the inner wall of the limit frame 8. The first limit wheel 81 is located at the end of the limit frame 8 closest to the flange plate 21. An adjusting rod 82 is provided on the end wall away from the limit frame 8. The adjusting rod 82 is threadedly connected to the limit frame 8. One end of the adjusting rod 82 passes through the limit frame 8, and the other end of the adjusting rod 82 is threadedly connected to a rotating frame 83. The rotating frame 83 can move along the limit frame 8. The frame 8 slides along its length, and the rotating adjustment rod 82 can move the frame 83 closer to or further away from the first limiting wheel 81. The second limiting wheel 84 is rotatably connected inside the frame 83. The steel belt 1 passes through the gap between the first limiting wheel 81 and the second limiting wheel 84. The second limiting wheel 84 will abut against the abutment piece 12, so that the folded abutment piece 12 can remain relatively stable when it is transmitted between the two sets of wheel groups 4, thereby improving the quality of the produced flange bottom cover.

[0044] Reference Figure 2 and Figure 4 A workbench 5 is provided at one end of the frame 2 away from the unwinding box 3. The workbench 5 is used to bend the steel strip 1 that has passed through the wheel set 4 to form a closed-loop flange bottom cover.

[0045] Reference Figure 1 and Figure 4 The workbench 5 is rotatably connected to a bending wheel 51 and a guide wheel 52. The abutting piece 12 passes through the gap between the bending wheel 51 and the guide wheel 52 and is pressed against the bending wheel 51 and the guide wheel 52. The cover plate 11 passes through the bottom of the guide wheel 52.

[0046] Reference Figure 4 and Figure 5 An adjusting cylinder 53 is provided on the side of the bending wheel 51 away from the frame 2. The adjusting cylinder 53 is welded to the surface of the worktable 5. The piston rod of the adjusting cylinder 53 is set towards the bending wheel 51. A variable diameter table 54 is welded to the end wall of the piston rod of the adjusting cylinder 53. A variable diameter wheel 55 is provided on the surface of the variable diameter table 54.

[0047] Reference Figure 4 and Figure 6 The variable diameter table 54 has a variable diameter cavity 541 inside. The variable diameter cavity 541 is equipped with a drive component 6 for changing the relative position of the variable diameter wheel 55 and the variable diameter table 54. By changing the corresponding position of the variable diameter wheel 55 and the bending wheel 51, the diameter of the flange bottom cover to be extended can be adjusted, thereby improving the applicability of the flange bottom cover production equipment.

[0048] Reference Figure 5 and Figure 6 The drive assembly 6 includes a sliding rod 61, a rotating plate 62, a drive motor 63, a drive gear 64, and several driven gear blocks 65. The surface of the variable diameter table 54 is provided with an adjustment groove 542, which is arc-shaped and communicates with the variable diameter cavity 541. One end of the sliding rod 61 is inserted into the adjustment groove 542, and the peripheral wall of the sliding rod 61 abuts against the inner wall of the adjustment groove 542, so that it can slide in the adjustment groove 542.

[0049] Reference Figure 4 and Figure 5 The variable diameter wheel 55 is rotatably connected to one end of the sliding rod 61 that extends out of the adjusting groove 542.

[0050] Refer to Figure 5 and Figure 6 The rotating plate 62 is welded to the end wall of the sliding rod 61 that is inserted into the adjusting groove 542. The inner wall corner of the variable diameter cavity 541 away from the bending wheel 51 is provided with a connecting groove 543 along the thickness direction. The connecting groove 543 is located at the connection of the two inner walls. The end of the rotating plate 62 away from the sliding rod 61 is rotatably connected to the inner wall of the connecting groove 543. Thus, when the rotating plate 62 rotates, it can drive the sliding rod 61 to slide along the length direction of the adjusting groove 542.

[0051] Reference Figure 4 and Figure 6Two sets of buffer knobs 545 are rotatably connected to the inner wall of the variable diameter cavity 541. The two buffer knobs 545 are respectively located on the inner walls of two sections without connecting slots 543. The sliding rod 61 abuts between the two buffer knobs 545. Each buffer knob 545 is provided with a return torsion spring 546 at the rotatable connection between itself and the inner wall of the variable diameter cavity 541. One end of the return torsion spring 546 is connected to the inner wall of the variable diameter cavity 541 by adhesive, and the other end is connected to the knob by adhesive. Under the action of their respective return torsion springs 546, the two buffer knobs 545 tend to rotate towards each other. A buffer pad 547 is glued to the inner wall of the variable diameter cavity 541. After the buffer knob 545 is pushed by the sliding rod 61, it abuts against the buffer pad 547, thereby achieving buffering and shock absorption of the sliding rod 61. This reduces the probability of collision between the variable diameter wheel 55 and the bending wheel 51 and improves the safety of the steel strip 1 bending equipment of this application during operation.

[0052] Reference Figure 5 and Figure 6 The end wall of the rotating plate 62 extending out of the connecting groove 543 has an arc-shaped driving surface 621. Several driven tooth blocks 65 are integrally formed on the surface of the driving surface 621. The driven tooth blocks 65 are evenly distributed along the circumferential direction of the driving surface 621. The base of the drive motor 63 is welded to the side wall of the variable diameter table 54. The drive gear 64 is sleeved on the peripheral wall of the output shaft of the drive motor 63 by key connection. The drive gear 64 meshes with the driven tooth blocks 65. After the drive motor 63 is started, it will drive the rotating plate 62 to rotate, thereby adjusting the position of the variable diameter wheel 55 relative to the variable diameter table 54, and thus changing the diameter of the flange bottom cover to be produced.

[0053] Reference Figure 4 and Figure 7 The workbench 5 has a cutting device 7 for cutting the bent flange bottom cover. The cutting device 7 includes a cutting seat 71, a cutting cylinder 72, a cutting tool 73, a support tool 75, and a linkage 76. A slide rail 74 is provided on one side of the workbench 5, and the slide rail 74 is set towards the bending wheel 51. The cutting seat 71 is set on the slide rail 74 and slides along the length of the slide rail 74, thereby enabling the cutting of flange bottom covers of different diameters.

[0054] Reference Figure 1 and Figure 7The cutting cylinder 72 is welded to the side wall of the cutting seat 71 near the bending wheel 51. The cutting cylinder 72 is inclined, and the piston rod of the cutting cylinder 72 is oriented towards the flange bottom cover after bending. The cutting tool 73 is welded to the end wall of the piston rod of the cutting cylinder 72. The cutting tool 73 has a horizontal cutting edge 731 and a vertical cutting edge 732 at one end near the flange bottom cover. The horizontal cutting edge 731 is used to cut the cover plate 11 part of the steel strip 1, and the vertical cutting edge 732 is used to cut the abutment piece 12 part of the steel strip 1. This enables precise cutting of the steel strip 1, thereby improving the precision of flange bottom cover production.

[0055] Reference Figure 7 The support cutter 75 is disposed inside the cutting seat 71 and is located on the moving path of the cutting tool 73. The flange bottom cover abuts against the surface of the support cutter 75. The surface of the support cutter 75 is provided with a cutting opening 751 for the cutting tool 73 to abut. The linkage 76 is disposed on the side wall of the cutting seat 71. Thus, when the cutting cylinder 72 drives the cutting tool 73 to move, the support cutter 75 moves toward or in the opposite direction to the cutting tool 73.

[0056] Reference Figure 7 and Figure 8 The linkage 76 includes a drive rack 761, a driven gear 762, a drive bevel gear 763, a driven bevel gear 764, a rotating lead screw 765, and a connecting sleeve 766. The drive rack 761 is connected to the side wall of the piston rod of the cutting cylinder 72 via a connecting rod. The driven gear 762 is rotatably connected to the outer wall of the cutting seat 71. The driven gear 762 meshes with the drive rack 761. When the drive rack 761 moves with the piston rod of the cutting cylinder 72, it can drive the driven gear 762 to rotate.

[0057] Reference Figure 7 and Figure 8The driving bevel gear 763 is welded to the end wall of the driven gear 762. The driving bevel gear 763 and the driven gear 762 are coaxially arranged. The rotating screw 765 is rotatably connected to one side of the cutting seat 71. The length direction of the rotating screw 765 is consistent with the movement direction of the piston rod of the cutting cylinder 72. The driven bevel gear 764 is welded onto the outer wall of the rotating screw 765. The driven bevel gear 764 meshes with the driving bevel gear 763, thereby enabling the driving bevel gear 763 and the driven bevel gear 762 to move by driving the rack 761. The meshing relationship between the driven bevel gears 764 drives the rotating lead screw 765 to rotate; the connecting sleeve 766 is threaded to the outer wall of the rotating lead screw 765, and the connecting sleeve 766 is connected to the support cutter 75 through the connecting rod, so that the connecting sleeve 766 can drive the support cutter 75 to move on the moving path of the cutting tool 73. When the support cutter 75 abuts against the annular flange bottom cover, it can provide support force for the flange bottom cover when the cutting tool 73 cuts the flange bottom cover, thereby improving the cutting quality.

[0058] Reference Figure 2 The workbench 5 is equipped with an inspection device 9 for verifying the diameter of the flange bottom cover after cutting. The inspection device 9 includes an inspection table 91, several inspection discs 92 of different diameters, and a locking element 93 for connecting the inspection discs 92 to the inspection table 91. In this embodiment, the locking element 93 is a bolt. By fitting the inner diameter of the cut flange bottom cover onto the outer wall of the inspection disc 92, it is possible to quickly check whether the flange bottom cover conforms to the standard.

[0059] The implementation principle of the steel strip bending equipment applicable to the present application embodiment is as follows: under the action of the wheel set 4, the side of the steel strip 1 is folded so that the steel strip 1 can form a cover plate 11 and abutment piece 12 at the folded part. During the process of the wheel set 4 folding the steel strip 1, the wheel set 4 will also drive the steel strip 1 to move towards the worktable 5.

[0060] When the steel strip 1 passes between the bending wheel 51 and the guide wheel 52, the compression of the two wheels makes the folding of the abutment piece 12 more stable. At the same time, the drive assembly 6 and the adjusting cylinder 53 can change the contact point between the reducing wheel 55 and the bending wheel 51, so that the bending amplitude of the steel strip 1 changes when it passes through the bending wheel 51 and the reducing wheel 55. This allows for the production of flange bottom covers of different diameters, thus achieving the goal of producing flange bottom covers of different diameters with the same production equipment. This improves the applicability of the production of flange bottom covers of different sizes, thereby increasing production efficiency and reducing economic costs.

[0061] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A bending machine suitable for producing steel strips of different diameters, characterized in that: The system includes a frame (2), one end of which is provided with an unwinding box (3) for placing a coiled steel strip (1). A flange plate (21) is provided on the top wall of the frame (2), and a wheel assembly (4) is provided on the side wall of the flange plate (21) for flange-flanging and transporting the steel strip (1). The side of the folded steel strip (1) forms an abutment plate (12), and the other part of the steel strip (1) forms a cover plate (11). A workbench (5) is provided at the end of the frame (2) away from the unwinding box (3). A bending wheel (51) and a guide wheel (52) are rotatably connected to the surface of the workbench (5). An adjusting cylinder (53) is provided on the side of the bending wheel (51) away from the frame (2). A variable diameter platform (54) is provided on the piston rod end wall of the cylinder (53). A variable diameter wheel (55) is rotatably connected to the surface of the variable diameter platform (54). The adjusting cylinder (53) drives the variable diameter wheel (55) to abut against the bending wheel (51). A variable diameter cavity (541) is opened inside the variable diameter platform (54). A drive assembly (6) is provided inside the variable diameter cavity (541). The drive assembly (6) drives the variable diameter wheel (55) to move relative to the variable diameter platform (54) to adjust the contact point between the variable diameter wheel (55) and the bending wheel (51) to change the diameter of the flange bottom cover. A cutting device (7) for cutting the flange bottom cover after bending is provided on one side of the worktable (5). The drive assembly (6) includes a sliding rod (61), a rotating plate (62), a drive motor (63), a drive gear (64), and several driven gear blocks (65). The surface of the variable diameter table (54) is provided with an adjustment groove (542), which is arc-shaped and communicates with the variable diameter cavity (541). One end of the sliding rod (61) is inserted into the adjustment groove (542), and the variable diameter wheel (55) is rotatably connected to the end of the sliding rod (61) extending out of the adjustment groove (542). The rotating plate (62) is connected to the end of the sliding rod (61) inserted into the adjustment groove (542). The variable diameter cavity... (541) A connecting groove (543) is provided through the inner wall of the end opposite to the bending wheel (51) along the thickness direction. The end of the rotating plate (62) opposite to the sliding rod (61) is rotatably connected to the inner wall of the connecting groove (543). An arc-shaped driving surface (621) is provided on the end wall of the rotating plate (62) extending out of the connecting groove (543). Several driven tooth blocks (65) are connected to the surface of the driving surface (621). The driving motor (63) is connected to the side wall of the variable diameter table (54). The driving gear (64) is sleeved on the peripheral wall of the output shaft of the driving motor (63). The driving gear (64) meshes with the driven tooth blocks (65).

2. The bending equipment for producing steel strips of different diameters according to claim 1, characterized in that: Two sets of buffer knobs (545) are rotatably connected to the inner wall of the variable diameter cavity (541). The sliding rod (61) abuts between the two buffer knobs (545). Each buffer knob (545) is provided with a return torsion spring (546) at the rotatable connection between it and the inner wall of the variable diameter cavity (541). One end of the return torsion spring (546) is connected to the inner wall of the variable diameter cavity (541), and the other end is connected to the corresponding buffer knob (545). The two buffer knobs (545) rotate toward each other under the drive of their respective return torsion springs (546). A buffer pad (547) is provided on the inner wall of the variable diameter cavity (541).

3. The bending equipment for producing steel strips of different diameters according to claim 1, characterized in that: The wheel set (4) includes a rolling wheel (41) and a flanging wheel (42). Both the rolling wheel (41) and the flanging wheel (42) are rotatably connected to the flanging plate (21). The gap between the rolling wheel (41) and the flanging wheel (42) allows the steel strip (1) to pass through. A flanging piece (421) is provided at the end of the flanging wheel (42) away from the flanging plate (21). The flanging piece (421) is arranged along the circumferential direction of the flanging wheel (42). The flanging piece (421) and the end of the rolling wheel (41) away from the flanging plate (21) form a flanging channel (43).

4. The bending equipment for producing steel strips of different diameters according to claim 3, characterized in that: The wheel set (4) is provided in several groups, and the several groups of wheel sets (4) are evenly distributed along the length direction of the flange plate (21). The diameter of the flange piece (421) of the adjacent wheel set (4) increases sequentially along the conveying direction of the steel belt (1), and the length of the flange piece (421) of the adjacent wheel set (4) from the end wall of the corresponding rolling wheel (41) gradually decreases along the conveying direction of the steel belt (1).

5. The bending equipment for producing steel strips of different diameters according to claim 3, characterized in that: Each wheel set (4) is provided with a limiting frame (8) on one side. The inner wall of the limiting frame (8) near the flange plate (21) is rotatably connected to a first limiting wheel (81). The limiting frame (8) is provided with an adjusting rod (82) away from the end wall. The adjusting rod (82) is threadedly connected to the limiting frame (8). One end of the adjusting rod (82) passes through the limiting frame (8) and is inserted into the limiting frame (8). The end of the adjusting rod (82) near the first limiting wheel (81) is threadedly connected to a rotating frame (83). The rotating frame (83) is slidably connected to the inner wall of the limiting frame (8). A second limiting wheel (84) is rotatably connected inside the rotating frame (83). The steel belt (1) passes through the gap between the first limiting wheel (81) and the second limiting wheel (84).

6. The bending equipment for producing steel strips of different diameters according to claim 1, characterized in that: The cutting device (7) includes a cutting seat (71), a cutting cylinder (72), and a cutting tool (73). The cutting seat (71) is located on one side of the bending wheel (51). The cutting cylinder (72) is located on the side wall of the cutting seat (71) near the bending wheel (51). The piston rod of the cutting cylinder (72) is oriented towards the bottom cover of the flange after bending. The cutting tool (73) is connected to the end wall of the piston rod of the cutting cylinder (72). The end of the cutting tool (73) is provided with a horizontal cutting edge (731) and a vertical cutting edge (732). After the cutting tool (73) moves, the horizontal cutting edge (731) cuts the cover plate (11). After the cutting tool (73) moves, the vertical cutting edge (732) cuts the abutment piece (12).

7. The bending equipment for producing steel strips of different diameters according to claim 6, characterized in that: The workbench (5) is provided with a slide rail (74) on one side, the slide rail (74) is arranged in the direction of the bending wheel (51), and the cutting seat (71) slides along the length of the slide rail (74).

8. The bending equipment for producing steel strips of different diameters according to claim 6, characterized in that: The cutting device (7) further includes a support blade (75), the steel strip (1) abuts against the surface of the support blade (75), the surface of the support blade (75) is provided with a cutting opening (751) for the cutting tool (73) to abut, and the side wall of the cutting device (7) is provided with a linkage (76) for driving the support blade (75) to move along the movement direction of the cutting tool (73).

9. The bending equipment for producing steel strips of different diameters according to claim 8, characterized in that: The linkage (76) includes a drive rack (761), a driven gear (762), a driving bevel gear (763), a driven bevel gear (764), a rotating lead screw (765), and a connecting sleeve (766). The drive rack (761) is connected to the side wall of the piston rod of the cutting cylinder (72). The driven gear (762) is rotatably connected to the outer wall of the cutting seat (71). The driven gear (762) meshes with the drive rack (761). The driving bevel gear (763) is connected to the driven gear (764). 762) End wall, the rotating lead screw (765) is rotatably connected to one side of the cutting seat (71), the length direction of the rotating lead screw (765) is consistent with the movement direction of the piston rod of the cutting cylinder (72), the driven bevel gear (764) is sleeved on the peripheral wall of the rotating lead screw (765), the driven bevel gear (764) meshes with the driving bevel gear (763), the connecting sleeve (766) is threadedly connected to the peripheral wall of the rotating lead screw (765), and the connecting sleeve (766) is connected to the supporting cutter (75).

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