Forming roller replacement structure for cold roll forming unit

Abstract

The invention discloses a forming roller replacement structure for a cold roll forming unit, and relates to the technical field of cold roll forming machine equipment.The forming roller replacement structure comprises a rack, supporting plates are mounted at the upper ends of the front and rear parts of the rack, a plurality of mounting grooves are formed in the supporting plates, fixed seats are symmetrically mounted at the front and rear ends of the rack, and movable seats are movably mounted at the upper ends of the fixed seats; a third mounting plate is mounted at one end of the rack, two electric push rods are mounted on the third mounting plate, supporting plates are mounted at the upper ends of the electric push rods, and a discharging assembly is mounted on one side of each supporting plate. The lifting assembly is installed on the supporting plate, a lifting motor in the lifting assembly drives a gear to rotate on a linear rack through a rotating shaft, meanwhile, a guide block moves in a guide groove in a guide plate, the upper forming roller and the lower forming roller can be conveniently lifted and descended, and follow-up dismounting and mounting are facilitated.

Description

Technical Field

[0001] The present invention relates to the technical field of cold bending forming machine equipment, and specifically relates to a forming roll replacement structure for a cold bending forming unit. Background Technique

[0002] A cold bending forming machine is a machine that continuously transversely bends metal strip materials such as coils and strips through a series of sequentially arranged forming rolls, so as to efficiently produce metal products with specific cross-sectional profiles. A cold bending forming machine is also called a roll forming machine, a roll rolling forming machine or a roll bending forming machine. Its working principle is to continuously transversely bend metal strip materials such as plates, coils and strips through a series of carefully configured forming rolls to achieve plastic processing.

[0003] At present, during the use of the pressure roll, it will gradually wear due to friction and pressure, resulting in changes in its shape and size. Such changes will affect the dimensional and shape accuracy of the finished product. Therefore, it is necessary to regularly replace the worn pressure roll to ensure product quality. When replacing, generally, a crane is used to lift the old pressure roll, and then a crane is used to lift and install the new pressure roll. This method requires sufficient space to be reserved above the forming machine, and there are certain limitations in use. Moreover, the pressure roll is prone to shaking during the hoisting process, thus colliding with other components, and it is inconvenient to use. Summary of the Invention

[0004] The purpose of the present invention is to provide a forming roll replacement structure for a cold bending forming unit to solve the problems raised in the above background technique.

[0005] To achieve the above purpose, the present invention provides the following technical solution: A forming roll replacement structure for a cold bending forming unit, including a frame. At the upper ends of the front and rear parts of the frame, support plates are installed. A number of installation slots are arranged on the support plates. Inside the two installation slots in the front and the rear, mounting plates I are installed. Between the two mounting plates I, a lower forming roll body is jointly installed through a bearing member. Inside the installation slots above the mounting plates I, mounting plates II are movably installed. Between the two mounting plates II, an upper forming roll body is jointly installed through a bearing member. Fixed seats are symmetrically installed at the front and rear ends of the frame. A movable seat is movably installed at the upper end of the fixed seat. A lifting assembly is installed at the upper end of the movable seat. An installation plate III is installed at one end of the frame. Two electric push rods are installed on the installation plate III. Pallets are installed at the upper ends of the electric push rods. A blanking assembly is installed on one side of the pallet.

[0006] Preferably, sliding grooves are arranged at both ends of the mounting plate I and the mounting plate II. The inner walls of both sides of the installation slot are in contact with the sliding grooves. An adjusting screw is rotated at the upper end of the mounting plate II. A top plate is rotatably installed on the surface of the adjusting screw. A limiting slot is arranged at the lower end of the top plate. The upper end of the support plate is located inside the limiting slot.

[0007] Preferably, the fixed seat is L-shaped. One end of the fixed seat is provided with a T-shaped groove in a penetrating manner. The moving seat is slidably installed inside the T-shaped groove. On both sides of the fixed seat near the edge of one end close to the frame, fixing plates are installed. On one side of one of the fixing plates, a driving motor is installed. Between the two fixing plates at the output end of the driving motor, a driving screw rod is installed. A threaded driving block is threadedly connected to the surface of the driving screw rod. A moving groove is arranged at one end of the fixed seat on one side of the threaded driving block. The threaded driving block extends into the moving groove, and one end of the threaded driving block is connected to the fixed seat.

[0008] Preferably, the lifting assembly includes a linear rack, a gear, a lifting motor, a lifting plate, a connecting plate, a guiding plate, a guiding block, and a rotating shaft. Two linear racks are installed at the upper end of the moving seat. At one end of each of the two linear racks, a guiding plate is installed. A guiding groove is arranged on the guiding plate. The guiding block is slidably installed inside the guiding groove. The two guiding blocks are jointly installed with a lifting plate at the front end. Two connecting plates are installed at the lower end of the lifting plate. At the lower end of one side of one of the connecting plates, a lifting motor is installed. Between the two connecting plates at the output end of the lifting motor, a rotating shaft is jointly installed. Two gears are installed on the surface of the rotating shaft. The gears are meshed with the linear racks.

[0009] Preferably, the front end of the lifting plate is threadedly connected with a support screw rod through a screw hole. Lifting blocks are rotatably installed at the rear ends of the support screw rods. Contact grooves are arranged at the upper ends of the lifting blocks.

[0010] Preferably, positioning plates are installed at one end of each of the guiding plates. Positioning screw rods are installed at the front ends of the positioning plates through screw holes. Positioning screw holes are arranged at the front ends of the support plates on both sides of the installation groove.

[0011] Preferably, a placing groove is arranged at the upper end of the supporting plate. A protective pad is laid inside the placing groove.

[0012] Preferably, the blanking assembly includes a blanking plate, a winding motor, a winding shaft, a blanking belt, and an installation frame. Installation frames are installed at the upper ends of the mounting plates on one side of the two electric push rods. A winding motor is installed at the front end of one of the installation frames. A winding shaft is installed between the two installation frames at the output end of the winding motor. A blanking belt is installed on the surface of the winding shaft. A blanking plate is inclinedly installed at one end of the mounting plate three below the winding shaft. One end of the blanking belt is connected to the upper end of the blanking plate.

[0013] Compared with the prior art, the beneficial effects of the present invention are:

[0014] 1. The forming roll replacement structure for this cold bending forming unit installs a lifting component on the support plate. The lifting motor in the lifting component drives the gear to rotate on the linear rack through the rotating shaft. At the same time, the guiding block moves inside the guiding groove inside the guiding plate, facilitating the lifting and lowering of the upper and lower forming rolls, making it convenient for subsequent disassembly and installation, and there is no need for a large space above the forming machine.

[0015] 2. The forming roll replacement structure for this cold bending forming unit slidably installs the lifting component on the fixed seat using the moving seat. By moving the moving seat, the lifting component can be moved to the front and rear parts of the appropriate installation slot. At the same time, the lifting component is positioned by cooperating with the positioning screw, facilitating the use of the lifting component to lift and lower the upper forming roll body and the lower forming roll body inside the specified installation slot, realizing disassembly positioning and being convenient to use.

[0016] 3. The forming roll replacement structure for this cold bending forming unit is provided with a blanking component. When the electric push rod drives the upper and lower forming roll bodies to descend, the upper and lower forming roll bodies contact the inclined blanking plate, and at the same time, the blanking belt wraps the upper and lower forming roll bodies. As the winding motor drives the winding shaft to unwind the blanking belt, the blanking belt drives the upper and lower forming roll bodies to move downward along the blanking plate, facilitating the removal of the upper and lower forming roll bodies from the forming machine. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 is the overall structure schematic diagram of the present invention;

[0018] Figure 2 is the structure schematic diagram of the lifting component of the present invention;

[0019] Figure 3 is of the present invention Figure 1 the enlarged view of part A;

[0020] Figure 4 is the structure schematic diagram of the blanking component of the present invention;

[0021] Figure 5 is the enlarged view of the connection between the guiding plate and the guiding block of the present invention;

[0022] Figure 6 is the movement schematic diagram of the moving seat of the present invention.

[0023] In the figure: 1, frame; 2, support plate; 3, installation groove; 4, first mounting plate; 5, lower forming roller body; 6, second mounting plate; 7, upper forming roller body; 8, fixed seat; 9, moving seat; 11, third mounting plate; 12, electric push rod; 13, supporting plate; 15, sliding groove; 16, adjusting screw; 17, top plate; 18, limiting groove; 19, T-shaped groove; 20, fixing plate; 21, driving motor; 22, driving screw; 23, threaded driving block; 24, moving groove; 25, guiding groove; 26, supporting screw; 27, lifting block; 28, contact groove; 29, positioning plate; 30, positioning screw; 31, positioning screw hole; 32, placing groove; 1001, linear rack; 1002, gear; 1003, lifting motor; 1004, lifting plate; 1005, connecting plate; 1006, guiding plate; 1007, guiding block; 1008, rotating shaft; 1401, blanking plate; 1402, winding motor; 1403, winding shaft; 1404, blanking belt; 1405, mounting frame. Detailed implementation manners

[0024] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0025] In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "front end", "rear end", "both ends", "one end", "the other end", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be construed as a limitation of the present invention. In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance.

[0026] As Figures 1 to 6As shown in the figure, the forming roll replacement structure for a cold bending forming unit in this embodiment includes a frame 1. At the upper ends of the front and rear parts of the frame 1, support plates 2 are installed. A number of installation grooves 3 are arranged on the support plates 2. The installation grooves 3 are used to place the lower forming roll body 5 and the upper forming roll body 7. Inside the two installation grooves 3 at the front and the rear, mounting plates one 4 are installed. Between the two mounting plates one 4, a lower forming roll body 5 is jointly installed through a bearing member. Inside the installation grooves 3 above the mounting plates one 4, mounting plates two 6 are movably installed. Between the two mounting plates two 6, an upper forming roll body 7 is jointly installed through a bearing member. The cooperation of the lower forming roll body 5 and the upper forming roll body 7 can realize the bending of metal plates such as coils. At the front and rear ends of the frame 1, fixed seats 8 are symmetrically installed. At the upper ends of the fixed seats 8, movable seats 9 are movably installed. The movable seats 9 can adjust the positions of the lifting components, facilitating the replacement of the upper forming roll body 7 and the lower forming roll body 5 inside the corresponding installation grooves 3. At the upper ends of the movable seats 9, lifting components are installed. The lifting components are used to lift the upper forming roll body 7 and the lower forming roll body 5. At one end of the frame 1, a mounting plate three 11 is installed. On the mounting plate three 11, two electric push rods 12 are installed. At the upper ends of the electric push rods 12, support plates 13 are installed. When the electric push rods 12 extend, the support plates 13 are used to support the upper forming roll body 7 and the lower forming roll body 5 taken out from the installation grooves 3, facilitating subsequent removal. On one side of the support plate 13, a blanking component is installed. The blanking component is used to blank the upper forming roll body 7 and the lower forming roll body 5, facilitating the placement of the upper forming roll body 7 and the lower forming roll body 5 on the ground.

[0027] Specifically, sliding grooves 15 are arranged at both ends of the mounting plates one 4 and the mounting plates two 6. The inner walls on both sides of the installation grooves 3 are in contact with the sliding grooves 15. Under the action of the sliding grooves 15, the mounting plates one 4 and the mounting plates two 6 can be limited, preventing the mounting plates one 4 and the mounting plates two 6 from moving inside the sliding grooves 15. At the upper ends of the mounting plates two 6, adjusting screws 16 are rotated. On the surface of the adjusting screws 16, top plates 17 are rotatably installed. Limiting grooves 18 are arranged at the lower ends of the top plates 17. The upper ends of the support plates 2 are located inside the limiting grooves 18. The top plates 17 are connected to the support plates 2 through bolts, preventing the support plates 2 from accidentally slipping out of the installation grooves 3. By rotating the adjusting screws 16, the adjusting screws 16 drive the mounting plates two 6 to move up and down, and the height of the upper forming roll body 7 can be adjusted, facilitating the maintenance of a suitable gap between the upper forming roll body 7 and the lower forming roll body 5.

[0028] Further, the fixed seat 8 is L-shaped. One end of the fixed seat 8 is penetrated and provided with a T-shaped groove 19. The moving seat 9 is slidably installed inside the T-shaped groove 19, which can realize the adjustment of the position of the moving seat 9. On both sides of one end of the fixed seat 8 close to the frame 1 near the edge, fixing plates 20 are installed. On one side of one fixing plate 20, a driving motor 21 is installed. At the output end of the driving motor 21 and between the two fixing plates 20, a driving screw 22 is installed. A threaded driving block 23 is threadedly connected to the surface of the driving screw 22. A moving groove 24 is arranged at one end of the fixed seat 8 on one side of the threaded driving block 23. The threaded driving block 23 extends into the moving groove 24, and one end of the threaded driving block 23 is connected to the fixed seat 8. By controlling the driving motor 21 to drive the driving screw 22 to rotate, the driving screw 22 drives the threaded driving block 23 to move, and the threaded driving block 23 drives the moving seat 9 to move inside the T-shaped groove 19, so as to realize the driving of the movement of the moving seat 9.

[0029] Further, the lifting assembly includes a linear rack 1001, a gear 1002, a lifting motor 1003, a lifting plate 1004, a connecting plate 1005, a guiding plate 1006, a guiding block 1007 and a rotating shaft 1008. Two linear racks 1001 are installed on the upper end of the moving seat 9. At one end of the two linear racks 1001, guiding plates 1006 are installed. A guiding groove 25 is arranged on the guiding plate 1006. A guiding block 1007 is slidably installed inside the guiding groove 25. The front ends of the two guiding blocks 1007 are jointly installed with a lifting plate 1004. Two connecting plates 1005 are installed at the lower end of the lifting plate 1004. At the lower end of the lifting plate 1004 on one side of one connecting plate 1005, a lifting motor 1003 is installed. At the output end of the lifting motor 1003 and between the two connecting plates 1005, a rotating shaft 1008 is jointly installed. Two gears 1002 are installed on the surface of the rotating shaft 1008. The gears 1002 are meshed with the linear racks 1001. By controlling the lifting motor 1003 to rotate, the lifting motor 1003 drives the gears 1002 to rotate on the linear racks 1001 through the rotating shaft 1008. At the same time, the guiding block 1007 moves inside the guiding groove 25 of the guiding plate 1006, so as to realize the lifting function of the lifting plate 1004.

[0030] Further, the front end of the lifting plate 1004 is threadedly connected with a support screw 26 through a screw hole. The rear ends of the support screws 26 are rotatably installed with lifting blocks 27. Contact grooves 28 are arranged at the upper ends of the lifting blocks 27. By rotating the support screw 26, the support screw 26 can drive the lifting blocks 27 to move towards the inside of the installation groove 3, which is convenient to use the lifting blocks 27 to contact the bottoms of the first mounting plate 4 and the second mounting plate 6. And the contact grooves 28 on the lifting blocks 27 can limit the first mounting plate 4 and the second mounting plate 6 to prevent accidental movement when the first mounting plate 4 and the second mounting plate 6 are lifted.

[0031] Further, positioning plates 29 are installed at one ends of the guide plates 1006. A positioning screw rod 30 is installed at the front end of the positioning plate 29 through a screw hole. Positioning screw holes 31 are arranged at the front ends of the support plates 2 on both sides of the installation groove 3. By rotating the positioning screw rod 30, one end of the positioning screw rod 30 is inserted into the positioning screw hole 31 inside the corresponding installation groove 3, so as to fix the position of the linear rack 1001, thereby fixing the position of the lifting assembly.

[0032] Further, a placement groove 32 is arranged at the upper end of the support plate 13. A protective pad is laid inside the placement groove 32. The placement groove 32 is used to support the upper forming roller 7 and the lower forming roller 5, facilitating the removal of the upper forming roller 7 and the lower forming roller 5 from the lifting assembly. The arrangement of the placement groove 32 prevents the upper forming roller 7 and the lower forming roller 5 from rolling off the support plate 13.

[0033] Furthermore, the blanking assembly includes a blanking plate 1401, a winding motor 1402, a winding shaft 1403, a blanking belt 1404 and a mounting frame 1405. Mounting frames 1405 are installed at the upper ends of the third mounting plates 11 on one side of the two electric push rods 12. A winding motor 1402 is installed at the front end of one mounting frame 1405. A winding shaft 1403 is installed between the two mounting frames 1405 at the output end of the winding motor 1402. A blanking belt 1404 is installed on the surface of the winding shaft 1403. A blanking plate 1401 is obliquely installed at one end of the third mounting plate 11 below the winding shaft 1403. One end of the blanking belt 1404 is connected to the upper end of the blanking plate 1401. When the electric push rod 12 drives the support plate 13 to move down with the upper forming roller 7 or the lower forming roller 5, the upper forming roller 7 or the lower forming roller 5 will fall on the blanking belt 1404. As the support plate 13 continues to descend, the upper forming roller 7 or the lower forming roller 5 will come into contact with the inclined blanking plate 1401. At the same time, the winding motor 1402 pays out the blanking belt 1404, and at the same time, the upper forming roller 7 or the lower forming roller 5 rolls on the blanking plate 1401, so as to slowly move the upper forming roller 7 or the lower forming roller 5 to the ground, thereby realizing the blanking of the upper forming roller 7 or the lower forming roller 5.

[0034] The usage method of this embodiment is as follows: when disassembling and replacing the upper forming roller body 7 and the lower forming roller body 5 inside the specified installation groove 3, control the driving motor 21 to drive the driving screw rod 22 to rotate. The driving screw rod 22 drives the threaded driving block 23 to move, and the threaded driving block 23 drives the moving seat 9 to move inside the T-shaped groove 19, so that the moving seat 9 moves to the front and rear parts of the installation groove 3 at a suitable position. Then rotate the positioning screw rod 30 and insert the positioning screw rod 30 into the positioning screw hole 31 to fix the position of the moving seat 9. Then the lifting motor 1003 rotates. The lifting motor 1003 drives the gear 1002 to rotate on the linear rack 1001 through the rotating shaft 1008. At the same time, the guiding block 1007 moves inside the guiding groove 25 on the guiding plate 1006, so that the lifting plate 1004 moves to a suitable height. Then rotate the supporting screw rod 26, and the supporting screw rod 26 can drive the lifting block 27 to move towards the inside of the installation groove 3, and use the lifting block 27 to support the mounting plate two 6. Then the lifting motor 1003 continues to drive the lifting plate 1004 to rise. After the lifting plate 1004 moves to a suitable height, disconnect the connection between the positioning screw rod 30 and the supporting plate 2. Then control the driving motor 21 to rotate again, so that the removed upper forming roller body 7 moves above the supporting plate 13. The electric push rod 12 drives the supporting plate 13 to rise to support the upper forming roller body 7, and disconnect the contact between the lifting block 27 and the mounting plate two 6. Then control the electric push rod 12 to descend. During this process, the upper forming roller body 7 contacts the blanking belt 1404, and the blanking belt 1404 wraps and supports the surface of the upper forming roller body 7. Then the winding motor 1402 drives the winding shaft 1403 to unwind the blanking belt 1404, so that the upper forming roller body 7 rolls on the blanking plate 1401, realizing the removal of the upper forming roller body 7. When removing the lower forming roller body 5, repeat the above steps. When installing the upper and lower forming rollers, place the upper and lower forming rollers on the blanking belt 1404. The winding motor 1402 winds the blanking belt 1404, and uses the supporting plate 13 to support the upper and lower forming rollers. Then use the lifting block 27 to support the mounting plate one 4 and the mounting plate two 6. Then control the lifting plate 1004 to descend, and install the mounting plate one 4 and the mounting plate two 6 inside the installation groove 3.

[0035] Finally, it should be noted that the above are only the preferred embodiments of the present invention and are not used to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, for those skilled in the art, they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A forming roll replacement structure for a cold bending forming unit, including a frame (1), characterized in that: At the upper ends of the front and rear parts of the frame (1), support plates (2) are installed. A number of installation grooves (3) are arranged on the support plates (2). Inside the front and rear installation grooves (3), first installation plates (4) are installed. A lower forming roller body (5) is jointly installed between the two first installation plates (4) through a bearing member. Inside the installation grooves (3) above the first installation plates (4), second installation plates (6) are movably installed. An upper forming roller body (7) is jointly installed between the two second installation plates (6) through a bearing member. Fixed seats (8) are symmetrically installed at the front and rear ends of the frame (1). A moving seat (9) is movably installed at the upper end of the fixed seat (8). A lifting component is installed at the upper end of the moving seat (9). At one end of the frame (1), a third installation plate (11) is installed. Two electric push rods (12) are installed on the third installation plate (11). A support plate (13) is installed at the upper end of each electric push rod (12). A blanking component is installed on one side of the support plate (13).

2. The forming roll replacement structure for a cold bending forming unit according to claim 1, characterized in that: Sliding grooves (15) are arranged at both ends of the first installation plate (4) and the second installation plate (6). The inner walls of both sides of the installation groove (3) are in contact with the sliding grooves (15). An adjusting screw rod (16) is rotated at the upper end of the second installation plate (6). A top plate (17) is rotatably installed on the surface of the adjusting screw rod (16). A limiting groove (18) is arranged at the lower end of the top plate (17). The upper end of the support plate (2) is located inside the limiting groove (18).

3. The forming roll replacement structure for a cold bending forming unit according to claim 1, characterized in that: The fixed seat (8) is L-shaped. A T-shaped groove (19) is arranged through the end of the fixed seat (8). The moving seat (9) is slidably installed inside the T-shaped groove (19). Fixing plates (20) are installed at both sides near the edge of one end of the fixed seat (8) close to the frame (1). A driving motor (21) is installed on one side of one fixing plate (20). A driving screw rod (22) is installed at the output end of the driving motor (21) and between the two fixing plates (20). A threaded driving block (23) is threadedly connected to the surface of the driving screw rod (22). A moving groove (24) is arranged at one end of the fixed seat (8) on one side of the threaded driving block (23). The threaded driving block (23) extends into the moving groove (24), and one end of the threaded driving block (23) is connected to the fixed seat (8).

4. The forming roll replacement structure for a cold bending forming unit according to claim 1, characterized in that: The lifting component includes a linear rack (1001), a gear (1002), a lifting motor (1003), a lifting plate (1004), a connecting plate (1005), a guide plate (1006), a guide block (1007) and a rotating shaft (1008). Two linear racks (1001) are installed at the upper end of the moving seat (9). Guide plates (1006) are installed at one end of the two linear racks (1001). Guide grooves (25) are arranged on the guide plates (1006). Guide blocks (1007) are slidably installed inside the guide grooves (25). A lifting plate (1004) is jointly installed at the front ends of the two guide blocks (1007). Two connecting plates (1005) are installed at the lower end of the lifting plate (1004). A lifting motor (1003) is installed at the lower end of the lifting plate (1004) on one side of a connecting plate (1005). A rotating shaft (1008) is jointly installed at the output end of the lifting motor (1003) and between the two connecting plates (1005). Two gears (1002) are installed on the surface of the rotating shaft (1008). The gears (1002) are meshed with the linear racks (1001).

5. The forming roll replacement structure for a cold bending forming unit according to claim 4, characterized in that: The front end of the lifting plate (1004) is threadedly connected with a support screw (26) through a screw hole. Lifting blocks (27) are rotatably installed at the rear ends of the support screws (26). Contact grooves (28) are arranged at the upper ends of the lifting blocks (27).

6. The forming roll replacement structure for a cold bending forming unit according to claim 4, characterized in that: Positioning plates (29) are installed at one end of the guide plates (1006). Positioning screws (30) are installed at the front ends of the positioning plates (29) through screw holes. Positioning screw holes (31) are arranged at the front ends of the support plates (2) on both sides of the installation groove (3).

7. The forming roll replacement structure for a cold bending forming unit according to claim 1, characterized in that: A placement groove (32) is arranged at the upper end of the support plate (13). A protective pad is laid inside the placement groove (32).

8. The forming roll replacement structure for a cold bending forming unit according to claim 1, characterized in that: The blanking component includes a blanking plate (1401), a winding motor (1402), a winding shaft (1403), a blanking belt (1404) and an installation frame (1405). Installation frames (1405) are installed at the upper ends of the third installation plates (11) on one side of the two electric push rods (12). A winding motor (1402) is installed at the front end of one installation frame (1405). A winding shaft (1403) is installed at the output end of the winding motor (1402) and between the two installation frames (1405). A blanking belt (1404) is installed on the surface of the winding shaft (1403). A blanking plate (1401) is obliquely installed at one end of the third installation plate (11) below the winding shaft (1403). One end of the blanking belt (1404) is connected to the upper end of the blanking plate (1401).

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