A progressive folding forming machine

Abstract

This invention provides a progressive bending forming machine, including a frame, a conveying mechanism, and a bending mechanism. Both the conveying mechanism and the bending mechanism are mounted on the frame. The conveying mechanism conveys sheet metal along a straight direction. The bending mechanism includes several rollers arranged sequentially along the conveying direction of the sheet metal. These rollers abut against the edge of the sheet metal and bend it. The rotation axis of the rollers forms an angle with the conveying plane of the sheet metal. The angles of the rollers are different and increase progressively along the conveying direction of the sheet metal, so that the edge of the sheet metal is gradually bent to a predetermined final angle after passing through several rollers. This method effectively avoids defects such as excessive stretching, stress concentration, excessive thinning rate, and even microcracks caused by large-angle bending in a single operation. It effectively improves the forming quality and mechanical strength of the bending area, and is particularly suitable for bending aluminum or stainless steel.

Description

Technical Field

[0001] This utility model relates to the field of honeycomb panel processing technology, and in particular to a progressive folding forming machine. Background Technology

[0002] Honeycomb panels, as a high-performance modern building material, consist of two thinner panels firmly bonded to both sides of a thicker honeycomb core. Their application in ceilings offers significant advantages, perfectly combining lightweight, high rigidity, and excellent flatness. The thinner panels can be made of aluminum or stainless steel. Using aluminum panels results in a very light overall weight, reducing the load requirements on the building structure and making transportation and installation easier. Stainless steel panels, with their smooth, mirror-like surface, enhance the visual appeal, creating a range of light and shadow effects from understated to dazzling, exuding a modern and technological feel.

[0003] There are currently several techniques for edge-wrapping honeycomb panels. One method involves edge-wrapping and bending, where the thinner edge of one side of the panel is bent to completely cover it. This results in high flatness, good structural strength, and an aesthetically pleasing appearance. However, traditional panel edge-wrapping processes mainly use a one-time bending method. For example, a large bending machine is used with two molds at a specific angle to press and bend the edge of the panel in one go. This creates enormous tensile stress on the outer edge of the panel, which can easily lead to micro-cracks or even breakage due to excessive stretching. Utility Model Content

[0004] In view of this, the purpose of this utility model is to provide a progressive edge bending forming machine, which aims to solve the problem in the prior art that the edge of the panel is pressed and bent in one go, which causes huge tensile stress on the outer edge of the panel, and is very easy to cause micro-cracks or even breakage of the material due to excessive stretching.

[0005] This utility model provides a progressive folding forming machine, including a frame, a conveying mechanism, and a folding mechanism. The conveying mechanism and the folding mechanism are both mounted on the frame. The conveying mechanism is used to convey sheet metal in a straight line. The folding mechanism includes a plurality of rollers arranged sequentially along the conveying direction of the sheet metal. The rollers are used to abut against the edge of the sheet metal and bend it. The rotation axis of the rollers forms an inclination angle with the conveying plane of the sheet metal. The inclination angles of the rollers are different from each other and are arranged in an increasing manner along the conveying direction of the sheet metal, so that the edge of the sheet metal is gradually bent to a predetermined final angle after passing through the rollers.

[0006] According to some embodiments of the present invention, the folding mechanism includes a first arc-shaped support, a first slide, and a first locking assembly. The first arc-shaped support is disposed on the frame, the roller is disposed on the first slide, and the first slide is adjustablely disposed on the first arc-shaped support to adjust the tilt angle of the roller. The first locking assembly is used to fix the first slide on the first arc-shaped support.

[0007] According to some embodiments of the present invention, the first locking assembly includes a first adjusting handle and a first locking block. The first adjusting handle is rotatably connected to the first slide block, and one end of the first adjusting handle extends into the first slide block and is connected to the first locking block. The first arc-shaped support is movably inserted into the first slide block, and the first adjusting handle, by rotating, presses the first locking block against the first arc-shaped support.

[0008] According to some embodiments of the present invention, a pre-pressing mechanism is also included. The pre-pressing mechanism and the folding mechanism are arranged sequentially along the conveying direction of the sheet material. The pre-pressing mechanism is used to press grooves into the edge of the sheet material.

[0009] According to some embodiments of the present invention, the pre-pressing mechanism includes a plurality of pointed rollers, which are arranged sequentially along the conveying direction of the sheet material. The pointed rollers are used to abut against the upper surface of the sheet material and press out grooves. The rotation axis of the pointed rollers forms an angle with the conveying plane of the sheet material. The angles of the pointed rollers are different from each other and are arranged in an increasing manner along the conveying direction of the sheet material, so that the edge of the sheet material is gradually pressed out with predetermined grooves after passing through the pointed rollers.

[0010] According to some embodiments of the present invention, the pre-compression mechanism includes a second arc-shaped support, a second slide, and a second locking assembly. The second arc-shaped support is disposed on the frame, the roller is disposed on the second slide, and the second slide is adjustablely disposed on the second arc-shaped support to adjust the inclination angle of the pointed roller. The second locking assembly is used to fix the second slide on the second arc-shaped support.

[0011] According to some embodiments of the present invention, the second locking assembly includes a second adjusting handle and a second locking block. The second adjusting handle is rotatably connected to the second slide block. One end of the second adjusting handle extends into the second slide block and is connected to the second locking block. The second arc-shaped support is movably inserted into the second slide block. The second adjusting handle rotates to press the second locking block against the second arc-shaped support.

[0012] According to some embodiments of the present invention, the conveying mechanism includes a first conveyor belt, a second conveyor belt, a drive motor, a first gear, and a second gear. The first conveyor belt, the second conveyor belt, and the drive motor are all mounted on the frame. The first gear is connected to the power output end of the drive motor and meshes with the second gear. The power input end of the first conveyor belt is connected to the first gear, and the power input end of the second conveyor belt is connected to the second gear. The second conveyor belt is located above the first conveyor belt. The first conveyor belt and the second conveyor belt clamp and convey the sheet material.

[0013] According to some embodiments of the present invention, the conveying mechanism further includes a lifting component, which is connected to the second conveyor belt. The lifting component is used to adjust the height of the second conveyor belt so that the distance between the first conveyor belt and the second conveyor belt is adapted to the thickness of the sheet material.

[0014] According to some embodiments of the present invention, the power input end of the second conveyor belt is connected to a first universal joint, the second gear is connected to a second universal joint, the second universal joint is movably inserted into the first universal joint along its axial direction, and the first universal joint and the second universal joint are fixed to each other in their circumferential direction.

[0015] Beneficial Effects: This utility model provides a progressive bending forming machine, including a frame, a conveying mechanism, and a bending mechanism. Both the conveying mechanism and the bending mechanism are mounted on the frame. The conveying mechanism conveys the sheet metal in a straight line. The bending mechanism includes several rollers arranged sequentially along the conveying direction of the sheet metal. The rollers abut against the edge of the sheet metal and bend it. The rotation axis of the rollers forms an angle with the conveying plane of the sheet metal. The angles of the rollers are different and increase progressively along the conveying direction of the sheet metal, so that the edge of the sheet metal is gradually bent to a predetermined final angle after passing through several rollers. This method effectively avoids defects such as excessive stretching, stress concentration, excessive thinning rate, and even microcracks caused by large-angle bending in one go, effectively improving the forming quality and mechanical strength of the bending area. It is particularly suitable for bending processing of aluminum or stainless steel. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is a schematic diagram of the progressive folding forming machine of this utility model;

[0018] Figure 2 for Figure 1 Enlarged view of point A in the middle;

[0019] Figure 3 This is a schematic diagram of the folding mechanism and pre-compression mechanism of this utility model.

[0020] In the diagram: 1. Frame; 2. Conveying mechanism; 21. First conveyor belt; 22. Second conveyor belt; 23. Drive motor; 24. First gear; 25. Second gear; 26. Lifting assembly; 27. First universal joint; 28. Second universal joint; 3. Folding mechanism; 30. Roller; 31. First arc-shaped support; 32. First slide; 33. First locking assembly; 331. First adjusting handle; 332. First locking block; 4. Pre-compression mechanism; 40. Pointed roller; 41. Second arc-shaped support; 42. Second slide; 43. Second locking assembly; 431. Second adjusting handle; 432. Second locking block. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the scope of protection of the present utility model.

[0022] Please see Figures 1 to 3 This utility model provides a progressive folding forming machine, including a frame 1, a conveying mechanism 2, and a folding mechanism 3. The conveying mechanism 2 and the folding mechanism 3 are both mounted on the frame 1. The conveying mechanism 2 is used to convey sheet metal in a straight line. The folding mechanism 3 includes a plurality of rollers 30, which are arranged sequentially along the conveying direction of the sheet metal. The rollers 30 are used to abut against the edge of the sheet metal and bend it. The rotation axis of the rollers 30 forms an inclination angle with the conveying plane of the sheet metal. The inclination angles of the rollers 30 are different from each other and are arranged in an increasing manner along the conveying direction of the sheet metal, so that the edge of the sheet metal is gradually bent to a predetermined final angle after passing through the rollers 30. In actual operation, when the sheet metal is conveyed by the conveying mechanism 2 to the folding mechanism 3, the angles formed between the rotation axis of each roller 30 and the conveying plane of the sheet metal are different and increase progressively along the conveying direction of the sheet metal. As the edge of the sheet metal comes into contact with several rollers 30 in sequence, it is subjected to bending forces at different angles, thus being gradually bent to the predetermined final angle. This progressive bending method avoids the problems of excessive stretching and stress concentration of the sheet metal caused by traditional one-time bending forming, effectively improving the forming quality and mechanical strength of the folding area.

[0023] According to some embodiments of this utility model, the folding mechanism 3 includes a first arc-shaped support 31, a first slide 32, and a first locking assembly 33. The first arc-shaped support 31 is disposed on the frame 1, and the roller 30 is disposed on the first slide 32. The first slide 32 is adjustablely disposed on the first arc-shaped support 31 to adjust the tilt angle of the roller 30. The first locking assembly 33 is used to fix the first slide 32 on the first arc-shaped support 31. In this embodiment, the first slide 32 is disposed on the arc-shaped structure of the first arc-shaped support 31, and the movement trajectory of the first slide 32 on the first arc-shaped support 31 is also an arc-shaped trajectory. Adjusting the position of the first slide 32 thereby achieves the purpose of adjusting the tilt angle of the roller 30. When the first slide block 32 is adjusted to a suitable position so that the inclination angle of the roller 30 meets the requirements of the sheet metal folding, the first locking component 33 can be fastened with bolts, locked with buckles, or in other ways to firmly fix the first slide block 32 on the first arc-shaped support 31. This ensures that the inclination angle of the roller 30 remains stable during the folding process and will not change due to the conveying of the sheet metal and the folding force, thereby ensuring the accuracy and quality of the sheet metal folding.

[0024] Specifically, the first locking assembly 33 includes a first adjusting handle 331 and a first locking block 332. The first adjusting handle 331 is rotatably connected to the first slide block 32. One end of the first adjusting handle 331 extends into the first slide block 32 and connects to the first locking block 332. The first arc-shaped support 31 is movably inserted into the first slide block 32. The first adjusting handle 331 rotates to press the first locking block 332 against the first arc-shaped support 31. In a preferred embodiment, the first adjusting handle 331 and the first slide block 32 are threadedly connected. The end of the first adjusting handle 331 and the first locking block 332 are axially fixed to each other, but can rotate relative to each other in the circumferential direction. In actual operation, when it is necessary to adjust the tilt angle of the roller 30, the operator only needs to rotate the first adjusting handle 331. The first adjusting handle 331 drives the first locking block 332 to move, causing the first locking block 332 to loosen from the first arc-shaped support 31. At this time, the first slide block 32 can slide freely on the first arc-shaped support 31. After the first slide block 32 slides to the appropriate position, that is, after the tilt angle of the roller 30 reaches the required angle, the first adjusting handle 331 is rotated in the opposite direction. The first adjusting handle 331 presses the first locking block 332 tightly against the first arc-shaped support 31, thereby fixing the first slide block 32 and ensuring that the roller 30 maintains a stable tilt angle during the folding process.

[0025] According to some embodiments of this utility model, a pre-pressing mechanism 4 is also included. The pre-pressing mechanism 4 and the folding mechanism 3 are arranged sequentially along the conveying direction of the sheet material. The pre-pressing mechanism 4 is used to press grooves into the edge of the sheet material. In this embodiment, through local pressing, grooves are pre-generated at the bending line. The grooves serve as weakened areas, where the material thickness is slightly reduced and partial plastic deformation has occurred, thereby significantly reducing the forming force required for subsequent bending. Furthermore, the grooves act as a pre-set stress guiding channel, effectively guiding the tensile and compressive stresses during bending to be released in an orderly manner along this line, avoiding stress concentration in unexpected areas.

[0026] Specifically, the pre-pressing mechanism 4 includes a plurality of pointed rollers 40, which are arranged sequentially along the conveying direction of the sheet material. Each pointed roller 40 abuts against the upper surface of the sheet material and presses out grooves. The rotation axis of each pointed roller 40 forms an angle with the conveying plane of the sheet material. The angles of the pointed rollers 40 are different and increase progressively along the conveying direction of the sheet material, so that the edge of the sheet material is gradually pressed into a predetermined groove after passing through the pointed rollers 40. In practical applications, when the sheet material is conveyed to the pre-pressing mechanism 4, because the angles formed between the rotation axis of each pointed roller 40 and the conveying plane of the sheet material are different and increase progressively along the conveying direction, the edge of the sheet material is subjected to pressing forces at different angles during the sequential contact with the pointed rollers 40, thus gradually pressing out the predetermined groove. The aforementioned progressive pressing method can precisely control the depth and shape of the groove, avoiding the problems of excessive material deformation or undesirable groove shape that may occur with one-time pressing, thus providing a good foundation for subsequent folding processes.

[0027] According to some embodiments of the present invention, the pre-compression mechanism 4 includes a second arc-shaped support 41, a second slide 42, and a second locking assembly 43. The second arc-shaped support 41 is disposed on the frame 1, the roller 30 is disposed on the second slide 42, the second slide 42 is adjustablely disposed on the second arc-shaped support 41 to adjust the inclination angle of the pointed roller 40, and the second locking assembly 43 is used to fix the second slide 42 on the second arc-shaped support 41.

[0028] Specifically, the second locking assembly 43 includes a second adjusting handle 431 and a second locking block 432. The second adjusting handle 431 is rotatably connected to the second slide block 42, and one end of the second adjusting handle 431 extends into the second slide block 42 and connects to the second locking block 432. The second arc-shaped support base 41 is movably inserted into the second slide block 42. The second adjusting handle 431, by rotating, presses the second locking block 432 against the second arc-shaped support base 41. In this embodiment, the structure and working principle of the first locking assembly 33 and the second locking assembly 43 are similar, and will not be described again here.

[0029] According to some embodiments of this utility model, the conveying mechanism 2 includes a first conveyor belt 21, a second conveyor belt 22, a drive motor 23, a first gear 24, and a second gear 25. The first conveyor belt 21, the second conveyor belt 22, and the drive motor 23 are all mounted on the frame 1. The first gear 24 is connected to the power output end of the drive motor 23 and meshes with the second gear 25. The power input end of the first conveyor belt 21 is connected to the first gear 24, and the power input end of the second conveyor belt 22 is connected to the second gear 25. The second conveyor belt 22 is located above the first conveyor belt 21. The first conveyor belt 21 and the second conveyor belt 22 clamp and convey the sheet metal. Specifically, when the drive motor 23 starts, its power output end drives the first gear 24 to rotate. Since the first gear 24 meshes with the second gear 25, it further drives the second gear 25 to rotate. The rotation of the first gear 24 transmits power to the power input end of the first conveyor belt 21, causing the first conveyor belt 21 to operate; the rotation of the second gear 25 transmits power to the power input end of the second conveyor belt 22, causing the second conveyor belt 22 to operate. The first conveyor belt 21 and the second conveyor belt 22 cooperate with each other to firmly clamp the sheet material placed between them and transport it stably according to the set direction and speed, ensuring that the sheet material can accurately reach the designated position in the subsequent folding and forming process.

[0030] According to some embodiments of this utility model, the conveying mechanism 2 further includes a lifting component 26, which is connected to the second conveyor belt 22. The lifting component 26 is used to adjust the height of the second conveyor belt 22 so that the distance between the first conveyor belt 21 and the second conveyor belt 22 is adapted to the thickness of the sheet material. Specifically, the lifting component 26 can be configured as a hydraulic lifting device or a screw and nut lifting device, etc. When a hydraulic lifting device is used, the piston rod of the hydraulic cylinder is connected to the second conveyor belt 22. By controlling the hydraulic system, the piston rod is extended and retracted, thereby driving the second conveyor belt 22 to rise or fall. When a screw and nut lifting device is used, the motor drives the screw to rotate, and the nut that cooperates with the screw is fixed on the second conveyor belt 22. When the screw rotates, the nut moves up and down along the screw, thereby driving the second conveyor belt 22 to adjust its height. Through the lifting component 26 in this embodiment, the distance between the first conveyor belt 21 and the second conveyor belt 22 can be flexibly changed. No matter how the thickness of the sheet material changes, the distance between the two can be made to match the thickness of the sheet material, ensuring that the sheet material is stably clamped and conveyed.

[0031] According to some embodiments of this utility model, the power input end of the second conveyor belt 22 is connected to a first universal joint 27, and the second gear 25 is connected to a second universal joint 28. The second universal joint 28 is movably inserted into the first universal joint 27 along its axial direction, and the first universal joint 27 and the second universal joint 28 are fixed to each other in their circumferential direction. In conjunction with the lifting assembly 26 in the previous embodiment, when the lifting assembly 26 adjusts the height of the second conveyor belt 22, the total length between the first universal joint 27 and the second universal joint 28 also needs to be changed accordingly. The second universal joint 28 is movably inserted into the first universal joint 27 along its axial direction to facilitate adjustment. Furthermore, since the first universal joint 27 and the second universal joint 28 have a certain degree of freedom of movement in the axial direction, they can adapt to the possible axial displacement deviation between the second conveyor belt 22 and the second gear 25 under different conditions. Meanwhile, their mutual fixation in the circumferential direction ensures the stable transmission of power, ensuring that the second conveyor belt 22 can run in the predetermined rotation direction and speed. There will be no unstable power transmission or abnormal operation of the conveyor belt caused by the relative rotation between the universal joints, thereby ensuring the reliable operation of the conveying mechanism 2.

[0032] It will be apparent to those skilled in the art that this application is not limited to the details of the exemplary embodiments described above, and that this application can be implemented in other specific forms without departing from the spirit or essential characteristics of this application. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this application is defined by the appended claims rather than the foregoing description. Thus, all variations falling within the meaning and scope of the equivalent elements of the claims are intended to be included within this application. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0033] The above-described embodiments are only used to illustrate the technical solutions of this application, and are not intended to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this application.

Claims

1. A progressive flange forming machine characterized by: The utility model relates to a plate bending device, including frame (1), conveying mechanism (2) and edge folding mechanism (3), conveying mechanism (2) and edge folding mechanism (3) are all arranged on frame (1), conveying mechanism (2) is used for conveying plate material along linear direction, edge folding mechanism (3) includes a plurality of rollers (30), a plurality of rollers (30) are sequentially arranged along the conveying direction of plate material, and the roller (30) is used for abutting with the edge of plate material and is bent, the inclination angle between the rotation axis of roller (30) and the conveying plane of plate material is formed, and the inclination angle of a plurality of rollers (30) is different and is incrementally arranged along the conveying direction of plate material, so that the edge of plate material is gradually bent to the predetermined final angle after passing through a plurality of rollers (30).

2. The progressive flange forming machine of claim 1, wherein: The edge folding mechanism (3) includes a first arc-shaped support seat (31), a first sliding seat (32), and a first locking assembly (33). The first arc-shaped support seat (31) is arranged on the frame (1). The roller (30) is arranged on the first sliding seat (32). The first sliding seat (32) is adjustably arranged on the first arc-shaped support seat (31) to adjust the inclination angle of the roller (30). The first locking assembly (33) is used to fix the first sliding seat (32) on the first arc-shaped support seat (31).

3. The progressive flange forming machine of claim 2, wherein: The first locking assembly (33) includes a first adjusting handle (331) and a first locking block (332). The first adjusting handle (331) is rotationally connected to the first sliding seat (32). One end of the first adjusting handle (331) extends into the first sliding seat (32) and is connected with the first locking block (332). The first arc-shaped support seat (31) is movably arranged in the first sliding seat (32). The first adjusting handle (331) is used to abut the first locking block (332) against the first arc-shaped support seat (31) by rotating.

4. The progressive flange forming machine of claim 1, wherein: The utility model also includes a pre-pressing mechanism (4). The pre-pressing mechanism (4) and the edge folding mechanism (3) are sequentially arranged along the conveying direction of the plate material. The pre-pressing mechanism (4) is used to press a groove on the edge of the plate material.

5. The progressive flange forming machine of claim 4, wherein: The pre-pressing mechanism (4) includes a plurality of sharp knife rollers (40). A plurality of sharp knife rollers (40) are sequentially arranged along the conveying direction of the plate material. The sharp knife roller (40) is used to abut the upper surface of the plate material and press a groove. The inclination angle between the rotation axis of the sharp knife roller (40) and the conveying plane of the plate material is formed. The inclination angles of a plurality of sharp knife rollers (40) are different and are incrementally arranged along the conveying direction of the plate material, so that the edge of the plate material is gradually pressed to the predetermined groove after passing through a plurality of sharp knife rollers (40).

6. The progressive flange forming machine of claim 5, wherein: The pre-pressing mechanism (4) comprises a second arc-shaped support seat (41), a second sliding seat (42) and a second locking assembly (43), the second arc-shaped support seat (41) is arranged on the rack (1), the roller (30) is arranged on the second sliding seat (42), the second sliding seat (42) is adjustably arranged on the second arc-shaped support seat (41) to adjust the inclination angle of the sharp knife roller (40), and the second locking assembly (43) is used for fixing the second sliding seat (42) on the second arc-shaped support seat (41).

7. The progressive flange forming machine of claim 6, wherein: The second locking assembly (43) comprises a second adjusting handle (431) and a second locking block (432), the second adjusting handle (431) is rotationally connected to the second sliding seat (42), one end of the second adjusting handle (431) extends into the second sliding seat (42) and is connected with the second locking block (432), the second arc-shaped support seat (41) is movably arranged in the second sliding seat (42), and the second adjusting handle (431) abuts the second locking block (432) against the second arc-shaped support seat (41) through rotation.

8. The progressive folder of claim 1 wherein: The conveying mechanism (2) comprises a first conveying belt (21), a second conveying belt (22), a driving motor (23), a first gear (24) and a second gear (25), the first conveying belt (21), the second conveying belt (22) and the driving motor (23) are arranged on the rack (1), the first gear (24) is connected to the power output end of the driving motor (23) and is engaged with the second gear (25), the power input end of the first conveying belt (21) is connected with the first gear (24), the power input end of the second conveying belt (22) is connected with the second gear (25), the second conveying belt (22) is located above the first conveying belt (21), and the first conveying belt (21) and the second conveying belt (22) clamp and convey the plate.

9. The progressive flange forming machine of claim 8, wherein: The conveying mechanism (2) further comprises a lifting assembly (26), the lifting assembly (26) is connected with the second conveying belt (22), and the lifting assembly (26) is used for adjusting the height of the second conveying belt (22), so that the spacing between the first conveying belt (21) and the second conveying belt (22) is adapted to the thickness of the plate.

10. The progressive flange forming machine of claim 8, wherein: The power input end of the second conveying belt (22) is connected with a first universal joint (27), the second gear (25) is connected with a second universal joint (28), the second universal joint (28) is movably inserted into the first universal joint (27) along the axial direction of the second universal joint (28), and the first universal joint (27) and the second universal joint (28) are fixed to each other in the circumferential direction.

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