Forming device and forming method of special-shaped C-shaped plate

Abstract

The invention provides a forming device and method for a special-shaped C-shaped plate. The forming device comprises a base, a driving mechanism and a plurality of forming assemblies. The multiple forming assemblies are sequentially divided into a first forming area, a second forming area and a third forming area, and the plate body sequentially passes through the first forming area, the second forming area and the third forming area to form the special-shaped C-shaped plate; when the plate body passes through the first forming area, the two sides of the plate body are gradually bent upwards until the two sides of the plate body are substantially perpendicular to the middle position of the plate body, so that a bent plate is formed; when the plate body passes through the second forming area, the tail end of the bent plate is gradually bent downwards until the tail end of the bent plate is substantially parallel to a main body of the bent plate, so that a left parallel plate and a right parallel plate are formed; and when the plate body passes through the third forming area, the right parallel plate of the plate body is gradually bent downwards until the right parallel plate is substantially perpendicular to the middle position of the plate body. The shape of the tail end of the C-shaped plate is not damaged, and the whole C-shaped plate cannot upwarp.

Description

Technical Field

[0001] This invention relates to a forming apparatus and a forming method for an irregularly shaped C-shaped plate. Background Technology

[0002] C-shaped panels, a common structural profile, are widely used in construction, transportation, and industrial equipment. They are typically manufactured using a cold roll forming process. In actual production, to meet connection or functional requirements, the ends of C-shaped panels often need to be pre-formed into specific shapes or structures, such as rolled edges, flanges, or openings. Current conventional processes generally employ a step-by-step forming method: the flat panel is first placed on a cold roll forming unit, where the front rollers pre-shape both ends of the panel, and then subsequent rollers gradually bend the panel into the final C-shaped cross-section. However, this process has significant drawbacks: during the end-shape forming process, the sides of the panel gradually converge inwards with the rolling, easily causing compression deformation or damage to the already formed end shape. Even if the end shape is preserved, during the subsequent bending into a C-shape, due to uneven material rheology and residual stress, the overall panel is prone to unexpected upward warping deformation, severely affecting the product's dimensional accuracy, assembly performance, and structural strength, increasing the cost of subsequent correction or scrapping. Summary of the Invention

[0003] The purpose of this invention is to overcome the shortcomings of the prior art and provide a forming device and forming method for irregular C-shaped plates.

[0004] To solve the above-mentioned technical problems, the present invention provides a forming device for irregular C-shaped plates, the forming device including a base, a driving mechanism and multiple forming components;

[0005] The molding assembly is disposed on the base along a conveying direction, and the driving mechanism is used to drive the molding assembly to operate;

[0006] The forming assembly is divided into a forming roller group and a forming roller group. The forming roller group includes an upper forming roller and a lower forming roller, and a roller forming gap is formed between the upper forming roller and the lower forming roller. The driving mechanism is used to drive the upper forming roller and / or the lower forming roller to rotate. When a plate passes through the forming gap, it is driven by the upper forming roller and the lower forming roller to pass through the forming assembly in sequence along the conveying direction.

[0007] The forming assembly has a plurality of forming roller groups and is arranged on the base along the conveying direction to realize the movement of the plate;

[0008] The forming roller assembly includes at least one roller, which is rotatably mounted on the base to correspond to the left and / or right sides of the plate. When the plate passes the roller, it is bent by the pressure of the roller. The forming roller assembly is distributed between the forming roller assembly to achieve side forming of the plate.

[0009] The multiple forming components are sequentially divided into a first forming area, a second forming area and a third forming area along the conveying direction. The plate body passes through the first forming area, the second forming area and the third forming area in sequence to form an irregular C-shaped plate.

[0010] When the plate passes through the first forming area, the two sides of the plate gradually bend upward until they are substantially perpendicular to the middle position of the plate, so as to form a bent plate.

[0011] When the plate passes through the second forming area, the end of the bending plate gradually bends downward until it is substantially parallel to the main body of the bending plate, so as to form a left parallel plate and a right parallel plate.

[0012] As the plate passes through the third forming zone, the right parallel plate of the plate gradually bends downward until it is substantially perpendicular to the middle position of the plate.

[0013] In a preferred embodiment, the first forming area is provided with a plurality of forming roller groups, and the plurality of forming roller groups are divided into a plurality of first forming roller groups and a plurality of second forming roller groups;

[0014] The plate passes through multiple first forming roller groups and multiple second forming roller groups in sequence, so that the two sides of the plate are bent relative to the middle position of the plate to form the bent plate.

[0015] In a preferred embodiment, each side of the first forming roller group includes a first forming component. The first forming component includes a cone block and a pressing block. The pressing block is formed on the upper forming roller, and the cone block is formed on the lower forming roller. The cone block includes a first forming surface near the middle position of the plate and a first conical surface away from the middle position of the plate. The pressing block includes a second forming surface near the middle position of the plate and a second conical surface away from the middle position of the plate. The first forming surface and the second forming surface correspond to each other, and the first conical surface and the second conical surface correspond to each other. The generatrix length of the first conical surface is greater than the generatrix length of the second conical surface. The junction of the first conical surface and the first forming surface corresponds to the bending point of the plate.

[0016] When the plate passes the forming component on one side, it is pressed down by the first forming surface and the second forming surface. The forming action of the first conical surface and the second conical surface causes one side of the plate to bend at a certain angle, which corresponds to the cone angle of the first conical surface and the second conical surface. The first forming surface and the second forming surface, as well as the first conical surface and the second conical surface, form the forming gap.

[0017] In a preferred embodiment, the cone angle of the first tapered surface of the later first forming roller group is greater than the cone angle of the first tapered surface of the previous first forming roller group.

[0018] In a preferred embodiment, each side of the second forming roller group includes a second forming component. The second forming component includes an upper pressing block, a lower pressing block, and a truncated cone. The upper pressing block and the lower pressing block are positioned vertically and vertically corresponding to the inner side of a bending point on one side of the plate to press against the bending point. The truncated cone corresponds to the outer side of the bent plate of the plate. The cone angle of the truncated cone corresponds to the angle of the bent plate after bending.

[0019] In a preferred embodiment, the cone angle of the truncated cone of the latter second forming roller group is smaller than the cone angle of the truncated cone of the former second forming roller group.

[0020] In a preferred embodiment, the second forming area is provided with a plurality of forming roller sets, and the plurality of forming roller sets respectively correspond to the bending plates on both sides of the plate body;

[0021] The forming roller assembly includes two rollers, which are located on the inner and outer sides of the end of the bending plate. A gap is formed between the two rollers. The end of the bending plate passes through the gap of the roller assembly to achieve downward bending of the end of the bending plate until it is substantially parallel to the main body of the bending plate.

[0022] For the bent plate on the left side of the plate body, the two guide wheels of the forming guide wheel group are divided into a first inner guide wheel and a first outer guide wheel. The first inner guide wheel includes a first lower forming cone surface, and the first outer guide wheel includes a first upper forming cone surface. The guide wheel gap is formed between the first lower forming cone surface and the first upper forming cone surface. After the end of the bent plate passes through the guide wheel gap between the first lower forming cone surface and the first upper forming cone surface of the multiple forming guide wheel groups, it bends inward until it is parallel to the main body of the bent plate, forming a left parallel plate.

[0023] For the bent plate on the right side of the plate body, the two guide wheels of the forming guide wheel group are divided into a second inner guide wheel and a second outer guide wheel. The second inner guide wheel includes a second upper forming cone surface, and the second outer guide wheel includes a second lower forming cone surface. The guide wheel gap is formed between the second lower forming cone surface and the second upper forming cone surface. After the end of the bent plate passes through the guide wheel gap between the second lower forming cone surface and the second upper forming cone surface of the multiple forming guide wheel groups, it bends outward until it is parallel to the main body of the bent plate, forming a right parallel plate.

[0024] In a preferred embodiment, the third forming area is provided with a plurality of forming roller groups, the plurality of forming roller groups respectively corresponding to the left parallel plate and the right parallel plate on both sides of the plate body;

[0025] For the bent plate on the left side of the plate body, the forming roller group includes one roller, which includes a first corresponding surface and a second corresponding surface. The first corresponding surface corresponds to the left parallel plate, and the second corresponding surface corresponds to the bent plate.

[0026] For the bent plate on the right side of the plate body, the forming roller assembly includes two rollers, which are divided into an upper roller and a lower roller. The lower roller includes a third corresponding surface, which is used to support the lower side of the right parallel plate. The upper roller includes an inner corresponding surface, an upper corresponding surface, and an outer corresponding surface. The inner corresponding surface corresponds to the inner side of the right bent plate, the upper corresponding surface corresponds to the upper side of the right bent plate, and the outer corresponding surface corresponds to the end of the bent plate. The outer corresponding surface is conical so as to be able to bend the end of the bent plate downward at a certain angle.

[0027] In a preferred embodiment, for the forming roller group of the right-side bending plate of the plate body, the taper of the outer corresponding surface of the latter forming roller group is reduced compared to the taper of the outer corresponding surface of the former forming roller group.

[0028] The present invention also provides a method for forming an irregular C-shaped plate, which uses the forming device described above;

[0029] The forming method includes: placing the plate on the forming device, such that the plate passes sequentially through the first forming area, the second forming area and the third forming area along the conveying direction;

[0030] When the plate passes through the first forming area, the two sides of the plate gradually bend upward until they are substantially perpendicular to the middle position of the plate, so as to form a bent plate.

[0031] When the plate passes through the second forming area, the end of the bending plate gradually bends downward until it is substantially parallel to the main body of the bending plate, so as to form a left parallel plate and a right parallel plate.

[0032] As the plate passes through the third forming zone, the right parallel plate of the plate gradually bends downward until it is substantially perpendicular to the middle position of the plate.

[0033] Compared with the prior art, the technical solution of the present invention has the following beneficial effects:

[0034] Multiple forming components are sequentially divided into a first forming area, a second forming area, and a third forming area along the conveying direction. The plate sequentially passes through the first forming area, the second forming area, and the third forming area to form an irregular C-shaped plate. When the plate passes through the first forming area, both sides of the plate gradually bend upwards until they are substantially perpendicular to the middle position of the plate, forming a bent plate. When the plate passes through the second forming area, the ends of the bent plates gradually bend downwards until they are substantially parallel to the main body of the bent plates, forming a left parallel plate and a right parallel plate. When the plate passes through the third forming area, the right parallel plate of the plate gradually bends downwards until it is substantially perpendicular to the middle position of the plate. This application forms the overall shape of the C-shape first, and then forms the shape of the ends of the C-shape, so that the end shape of the C-shaped plate is not damaged and the overall shape does not warp upwards. Attached Figure Description

[0035] Figure 1 This is a perspective view of the molding apparatus in a preferred embodiment of the present invention;

[0036] Figure 2 This is a three-dimensional schematic diagram of the first forming roller group in the first forming area of ​​the preferred embodiment of the present invention;

[0037] Figure 3 This is a three-dimensional schematic diagram of the second forming roller group in the first forming area of ​​a preferred embodiment of the present invention;

[0038] Figure 4 This is a three-dimensional schematic diagram of the forming roller assembly in the second forming area of ​​a preferred embodiment of the present invention;

[0039] Figure 5 This is a three-dimensional schematic diagram of the forming roller assembly in the third forming area of ​​a preferred embodiment of the present invention;

[0040] Figure 6 This is a schematic diagram of the cross-section of the irregular C-shaped plate in a preferred embodiment of the present invention;

[0041] Figure 7 This is a schematic diagram illustrating the forming principle of the irregular C-shaped plate in the first forming area in a preferred embodiment of the present invention.

[0042] Figure 8 This is a schematic diagram illustrating the forming principle of the irregular C-shaped plate in the second forming zone in a preferred embodiment of the present invention.

[0043] Figure 9This is a schematic diagram illustrating the forming principle of the irregular C-shaped plate in the third forming zone in a preferred embodiment of the present invention. Detailed Implementation

[0044] The present invention will be further described below with reference to the accompanying drawings and specific embodiments.

[0045] See Figures 1-9 A forming device for an irregularly shaped C-shaped plate is disclosed. The forming device includes a base 1, a drive mechanism 2, and multiple forming components. The forming components are arranged on the base 1 along a conveying direction, and the drive mechanism 2 drives the forming components to rotate. The forming components can be divided into forming roller groups 3 and forming roller groups 4. The forming roller group 3 includes an upper forming roller 31 and a lower forming roller 32, forming a roller forming gap 33 between the upper forming roller 31 and the lower forming roller 32. The drive mechanism 2 drives the upper forming roller 31 and / or the lower forming roller 32 to rotate. When a plate 10 passes through the roller forming gap 33, it is driven by the upper forming roller 31 and the lower forming roller 32 to sequentially pass through the forming components along the conveying direction. The forming components have multiple forming roller groups 3, which are arranged on the base 1 along the conveying direction to realize the movement of the plate 10. The forming roller assembly 4 includes at least one roller 41, which is rotatably mounted on the base 1 to correspond to the left and / or right sides of the plate 10. When the plate 10 passes the roller 41, it is bent by the pressure of the roller 41. The forming roller assembly 4 is distributed between the forming roller assemblies 3 to achieve side forming of the plate 10.

[0046] The multiple forming components are sequentially divided into a first forming zone 5, a second forming zone 6, and a third forming zone 7 along the conveying direction. The plate 10 passes through the first forming zone 5, the second forming zone 6, and the third forming zone 7 in sequence to form an irregular C-shaped plate.

[0047] As the plate 10 passes through the first forming zone 5, both sides of the plate 10 gradually bend upwards until they are substantially perpendicular to the middle position of the plate 10. In this embodiment, the angle between the two sides of the plate 10 and the middle position of the plate 10 is 94 degrees. The first forming zone 5 is provided with a plurality of forming roller groups 3, which are divided into a plurality of first forming roller groups 51 and a plurality of second forming roller groups 52. The plate 10 passes through the plurality of first forming roller groups 51 and the plurality of second forming roller groups 52 in sequence, so that the two sides of the plate 10 bend relative to the middle position of the plate 10.

[0048] Each side of the first forming roller group 51 includes a first forming component 511. The first forming component 511 includes a cone block 5111 and a pressing block 5112. The pressing block 5112 is formed on the upper forming roller 31, and the cone block 5111 is formed on the lower forming roller 32. The cone block 5111 includes a first forming surface 5113 near the middle of the plate 10 and a first conical surface 5114 away from the middle of the plate 10. The pressing block 5112 includes a first forming surface 5113 near the middle of the plate 10 and a first conical surface 5114 away from the middle of the plate 10. The first forming surface 5115 is located near the middle of the plate 10, and the second conical surface 5116 is located away from the middle of the plate 10. The first forming surface 5113 and the second forming surface 5115 correspond to each other, and the first conical surface 5114 and the second conical surface 5116 correspond to each other. The generatrix length of the first conical surface 5114 is greater than the generatrix length of the second conical surface 5116. The junction of the first conical surface 5114 and the first forming surface 5113 corresponds to the bending point of the plate 10. When the plate 10 passes the forming component on one side, it is pressed down by the first forming surface 5113 and the second forming surface 5115, and formed by the first conical surface 5114 and the second conical surface 5116, causing one side of the plate 10 to bend at a certain angle, which corresponds to the cone angle of the first conical surface 5114 and the second conical surface 5116; the first forming surface 5113 and the second forming surface 5115, as well as the first conical surface 5114 and the second conical surface 5116, form the roller forming gap 33. Since both sides of the plate 10 are bent by the forming component, forming a bent plate 101, both sides of the plate 10 will be bent. In this embodiment, a total of four first forming roller groups 51 are provided. The cone angle of the first conical surface 5114 of the later first forming roller group 51 is larger than the cone angle of the first conical surface 5114 of the previous first forming roller group 51. In this embodiment, the angles at which one side of the plate 10 is bent in sequence are 8 degrees, 18 degrees, 30 degrees and 48 degrees.

[0049] Each side of the second forming roller group 52 includes a second forming component 521. The second forming component 521 includes an upper pressure block 5211, a lower pressure block 5212, and a truncated cone 5213. The upper pressure block 5211 and lower pressure block 5212 are positioned vertically on the inner side of a bending point on one side of the plate 10 to press against that bending point. The truncated cone 5213 corresponds to the outer side of the bending plate 101 of the plate 10. The cone angle of the truncated cone 5213 corresponds to the angle after the bending plate 101 is bent; therefore, the outer side of the bending plate 101 of the plate 10 will continue to bend at a certain angle after passing the truncated cone 5213. In this embodiment, a total of five second forming roller groups 52 are provided. The cone angle of the truncated cone 5213 of the later second forming roller group 52 is smaller than the cone angle of the truncated cone 5213 of the previous second forming roller group 52. In this embodiment, the penultimate second forming roller group 52 has a truncated cone 5213 only on its right side. The cone angle of this truncated cone 5213 is negative, meaning its overall shape is wider at the top and narrower at the bottom, resulting in a bending angle of the bending plate 101 of the plate 10 greater than 90 degrees. The penultimate second forming roller group 52 has a truncated cone 5213 only on its left side. The cone angle of this truncated cone 5213 is also negative, meaning its overall shape is wider at the top and narrower at the bottom, resulting in a bending angle of the bending plate 101 of the plate 10 greater than 90 degrees. In this embodiment, the angles after bending one side of the plate 10 are 66 degrees, 78 degrees, 88 degrees, and 94 degrees respectively.

[0050] When the plate 10 passes through the second forming zone 6, the end of the bending plate 101 gradually bends downward until it is substantially parallel to the main body of the bending plate 101. The second forming zone 6 is provided with a plurality of forming roller groups 4, which correspond to the bending plates 101 on both sides of the plate 10. In this embodiment, during forming, the plate 10 may have forming roller groups 4 on only one side, or both sides of the plate 10 may have forming roller groups 4 simultaneously, and this is not a limitation.

[0051] The forming roller assembly 4 includes two rollers 41, which are located on the inner and outer sides of the end of the bending plate 101. A roller gap 42 is formed between the two rollers 41. The end of the bending plate 101 passes through the roller gaps 42 of the forming roller assembly 4 to achieve downward bending of the end of the bending plate 101 until it is substantially parallel to the main body of the bending plate 101.

[0052] For the bent plate 101 on the left side of the plate 10, the two guide wheels 41 of the forming guide wheel group 4 are divided into a first inner guide wheel 61 and a first outer guide wheel 62. The first inner guide wheel 61 includes a first lower forming cone surface 611, and the first outer guide wheel 62 includes a first upper forming cone surface 621. The guide wheel gap 42 is formed between the first lower forming cone surface 611 and the first upper forming cone surface 621. After the end of the bent plate 101 passes through the guide wheel gap 42 between the first lower forming cone surface 611 and the first upper forming cone surface 621 of the multiple forming guide wheel groups 4, it can be bent inward until it is parallel to the main body of the bent plate 101, forming a left parallel plate 102.

[0053] For the bent plate 101 on the right side of the plate 10, the two guide wheels 41 of the forming guide wheel group 4 are divided into a second inner guide wheel 63 and a second outer guide wheel 64. The second inner guide wheel 63 includes a second upper forming cone surface 631, and the second outer guide wheel 64 includes a second lower forming cone surface 641. The guide wheel gap 42 is formed between the second lower forming cone surface 641 and the second upper forming cone surface 631. After the end of the bent plate 101 passes through the guide wheel gap 42 between the second lower forming cone surface 641 and the second upper forming cone surface 631 of the multiple forming guide wheel groups 4, it can be bent outward until it is parallel to the main body of the bent plate 101, forming a right parallel plate 103.

[0054] As the plate 10 passes through the third forming zone 7, the left parallel plate 102 of the plate 10 gradually bends downward until it is substantially perpendicular to the middle position of the plate 10. The third forming zone 7 is provided with a plurality of forming roller groups 4, which correspond to the left parallel plate 102 and the right parallel plate 103 on both sides of the plate 10, respectively.

[0055] For the bent plate 101 on the left side of the plate 10, the forming roller group 4 includes a roller 41, which includes a first corresponding surface 71 and a second corresponding surface 72. The first corresponding surface 71 corresponds to the left parallel plate 102, and the second corresponding surface 72 corresponds to the bent plate 101. When the plate 10 moves along the conveying direction, it can play the role of holding the left flat plate and the left bent plate 101.

[0056] For the bent plate 101 on the right side of the plate 10, the forming roller group 4 includes two rollers 41, which are divided into an upper roller 73 and a lower roller 74. The lower roller 74 includes a third corresponding surface 741, which is used to support the lower side of the right parallel plate 103. The upper roller 73 includes an inner corresponding surface 731, an upper corresponding surface 732, and an outer corresponding surface 733. The inner corresponding surface 731 corresponds to the inner side of the right bent plate 101, the upper corresponding surface 732 corresponds to the upper part of the right bent plate 101, and the outer corresponding surface 733 corresponds to the end of the bent plate 101. The outer corresponding surface 733 is conical so that it can bend the end of the bent plate 101 downward at a certain angle. For the forming roller group 4 of the bending plate 101 on the right side of the plate 10, the taper of the outer corresponding surface 733 of the latter forming roller group 4 is smaller than that of the outer corresponding surface 733 of the former forming roller group 4. Therefore, the end of the bending plate 101 can be gradually bent downward until it is parallel to the bending plate 101.

[0057] The above description is merely a preferred embodiment of the present invention, but the design concept of the present invention is not limited thereto. Any non-substantial modifications made to the present invention by those skilled in the art within the scope of the technology disclosed in the present invention using this concept shall be deemed as an infringement of the protection scope of the present invention.

Claims

1. A forming device for an irregularly shaped C-shaped plate, characterized in that, The molding device includes a base, a drive mechanism, and multiple molding components; The molding assembly is disposed on the base along a conveying direction, and the driving mechanism is used to drive the molding assembly to operate; The forming assembly is divided into a forming roller group and a forming roller group. The forming roller group includes an upper forming roller and a lower forming roller. A roller forming gap is formed between the upper forming roller and the lower forming roller. The driving mechanism is used to drive the upper forming roller and / or the lower forming roller to rotate. When a plate passes through the roller forming gap, it is driven by the upper forming roller and the lower forming roller to pass through the forming assembly in sequence along the conveying direction. The forming assembly has a plurality of forming roller groups and is arranged on the base along the conveying direction to realize the movement of the plate; The forming roller assembly includes at least one roller, which is rotatably mounted on the base to correspond to the left and / or right sides of the plate. When the plate passes the roller, it is bent by the pressure of the roller. The forming roller assembly is distributed between the forming roller assembly to achieve side forming of the plate. The multiple forming components are sequentially divided into a first forming area, a second forming area and a third forming area along the conveying direction. The plate body passes through the first forming area, the second forming area and the third forming area in sequence to form an irregular C-shaped plate. When the plate passes through the first forming area, the two sides of the plate gradually bend upward until they are substantially perpendicular to the middle position of the plate, so as to form a bent plate. When the plate passes through the second forming area, the end of the bending plate gradually bends downward until it is substantially parallel to the main body of the bending plate, so as to form a left parallel plate and a right parallel plate. As the plate passes through the third forming zone, the right parallel plate of the plate gradually bends downward until it is substantially perpendicular to the middle position of the plate.

2. The forming device for an irregularly shaped C-shaped plate as described in claim 1, characterized in that: The first forming area is provided with a plurality of forming roller groups, and the plurality of forming roller groups are divided into a plurality of first forming roller groups and a plurality of second forming roller groups; The plate passes through multiple first forming roller groups and multiple second forming roller groups in sequence, so that the two sides of the plate are bent relative to the middle position of the plate to form the bent plate.

3. The forming device for an irregularly shaped C-shaped plate as described in claim 2, characterized in that: Each side of the first forming roller assembly includes a first forming component. The first forming component includes a cone block and a pressing block. The pressing block is formed on the upper forming roller, and the cone block is formed on the lower forming roller. The cone block includes a first forming surface near the middle of the plate and a first conical surface away from the middle of the plate. The pressing block includes a second forming surface near the middle of the plate and a second conical surface away from the middle of the plate. The first forming surface and the second forming surface correspond to each other, and the first conical surface and the second conical surface correspond to each other. The generatrix length of the first conical surface is greater than the generatrix length of the second conical surface. The junction of the first conical surface and the first forming surface corresponds to the bending point of the plate. When the plate passes the forming component on one side, it is pressed down by the first forming surface and the second forming surface. The forming action of the first conical surface and the second conical surface causes one side of the plate to bend at a certain angle, which corresponds to the cone angle of the first conical surface and the second conical surface. The first forming surface and the second forming surface, as well as the first conical surface and the second conical surface, form the roller forming gap.

4. The forming device for an irregularly shaped C-shaped plate as described in claim 3, characterized in that: The cone angle of the first conical surface of the next first forming roller group is greater than the cone angle of the first conical surface of the previous first forming roller group.

5. The forming apparatus for an irregularly shaped C-shaped plate as described in claim 2, characterized in that: The second forming roller group includes a second forming component on each side. The second forming component includes an upper pressing block, a lower pressing block, and a cone. The upper pressing block and the lower pressing block are positioned vertically on the inner side of the bending point on one side of the plate to press against the bending point. The cone corresponds to the outer side of the bending plate of the plate. The cone angle of the cone corresponds to the angle of the bending plate after bending.

6. The forming apparatus for an irregularly shaped C-shaped plate as described in claim 5, characterized in that: The cone angle of the truncated cone of the next second forming roller group is smaller than the cone angle of the truncated cone of the previous second forming roller group.

7. The forming apparatus for an irregularly shaped C-shaped plate as described in claim 1, characterized in that: The second forming area is provided with a plurality of forming roller sets, and the plurality of forming roller sets correspond to the bending plates on both sides of the plate body respectively; The forming roller assembly includes two rollers, which are located on the inner and outer sides of the end of the bending plate. A gap is formed between the two rollers. The end of the bending plate passes through the gap of the roller assembly to achieve downward bending of the end of the bending plate until it is substantially parallel to the main body of the bending plate. For the bent plate on the left side of the plate body, the two guide wheels of the forming guide wheel group are divided into a first inner guide wheel and a first outer guide wheel. The first inner guide wheel includes a first lower forming cone surface, and the first outer guide wheel includes a first upper forming cone surface. The guide wheel gap is formed between the first lower forming cone surface and the first upper forming cone surface. After the end of the bent plate passes through the guide wheel gap between the first lower forming cone surface and the first upper forming cone surface of the multiple forming guide wheel groups, it bends inward until it is parallel to the main body of the bent plate, forming a left parallel plate. For the bent plate on the right side of the plate body, the two guide wheels of the forming guide wheel group are divided into a second inner guide wheel and a second outer guide wheel. The second inner guide wheel includes a second upper forming cone surface, and the second outer guide wheel includes a second lower forming cone surface. The guide wheel gap is formed between the second lower forming cone surface and the second upper forming cone surface. After the end of the bent plate passes through the guide wheel gap between the second lower forming cone surface and the second upper forming cone surface of the multiple forming guide wheel groups, it bends outward until it is parallel to the main body of the bent plate, forming a right parallel plate.

8. The forming apparatus for an irregularly shaped C-shaped plate as described in claim 1, characterized in that: The third forming area is provided with a plurality of forming roller groups, which correspond to the left parallel plate and the right parallel plate on both sides of the plate body, respectively. For the bent plate on the left side of the plate body, the forming roller group includes one roller, which includes a first corresponding surface and a second corresponding surface. The first corresponding surface corresponds to the left parallel plate, and the second corresponding surface corresponds to the bent plate. For the bent plate on the right side of the plate body, the forming roller assembly includes two rollers, which are divided into an upper roller and a lower roller. The lower roller includes a third corresponding surface, which is used to support the lower side of the right parallel plate. The upper roller includes an inner corresponding surface, an upper corresponding surface, and an outer corresponding surface. The inner corresponding surface corresponds to the inner side of the right bent plate, the upper corresponding surface corresponds to the upper side of the right bent plate, and the outer corresponding surface corresponds to the end of the bent plate. The outer corresponding surface is conical so as to be able to bend the end of the bent plate downward at a certain angle.

9. The forming apparatus for an irregularly shaped C-shaped plate as described in claim 8, characterized in that: For the forming roller group of the right-side bending plate of the plate, the taper of the outer corresponding surface of the latter forming roller group is smaller than the taper of the outer corresponding surface of the former forming roller group.

10. A method for forming an irregularly shaped C-shaped plate, characterized in that, The forming apparatus for the irregular C-shaped plate as described in any one of claims 1-9 was used; The forming method includes: placing the plate on the forming device, such that the plate passes sequentially through the first forming area, the second forming area and the third forming area along the conveying direction; When the plate passes through the first forming area, the two sides of the plate gradually bend upward until they are substantially perpendicular to the middle position of the plate, so as to form a bent plate. When the plate passes through the second forming area, the end of the bending plate gradually bends downward until it is substantially parallel to the main body of the bending plate, so as to form a left parallel plate and a right parallel plate. As the plate passes through the third forming zone, the right parallel plate of the plate gradually bends downward until it is substantially perpendicular to the middle position of the plate.

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