Laminate bending device

Abstract

The invention relates to the technical field of metal bending, discloses a laminate bending device, and solves the problems that the existing laminate forming process is complicated in step, the placement angle and stamping parameters need to be adjusted in the final forming of a V-shaped plate, the inner side of the V-shaped plate is not supported, the stamping stroke is slightly changed, so that the laminate is easily deformed to be a defective product, and the processing efficiency and quality of the laminate are influenced. The lower pressing base is pushed through the hanging plate, the pressing die plate is further pushed, so that the metal plate is squeezed into a groove between the two lower closing dies, the pressing die plate moving downwards synchronously pushes the pressing plate downwards through the metal plate, the pressing plate moving downwards pushes the extrusion block, the lower closing dies are promoted to rotate around the shaft, one side of the metal plate is bent to be in a vertical state, and meanwhile, the metal plate is bent to be in a vertical state. The folded corners at the two ends of the metal plate body can be folded above the pressing die plate, so that the metal plate body is formed into the laminate body on the outer surface of the pressing die plate at a time, the processing efficiency is improved, and meanwhile, the production yield is also improved due to the fact that the inner side of the laminate body is supported by the pressing die plate.

Description

Technical Field

[0001] The present invention relates to the technical field of metal bending, in particular to a layer plate bending device. Background Art

[0002] The laminate is a hollow plate, usually made of metal plate through bending process, mainly used as a partition. Figure 1 and Figure 2 As shown, the ends of the metal sheet are first pre-bent to form the side surfaces of the laminate. Next, a stamping die is used to stamp the surface of the metal sheet to form the corresponding portion of the other side of the laminate. Subsequently, the two sides, which serve as the wide sides of the laminate, are bent upward to form a V-shaped structure. Finally, the bottom side of the V-shaped metal sheet is stamped to force the top end to close, thus completing the formation of the laminate. When stamping the bottom side of the V-shaped metal sheet, it needs to be adjusted to a horizontal position before being stamped using a stamping die to ensure that the opening on the other side can be accurately closed.

[0003] However, the existing laminate forming process has many problems. The entire processing step is complicated, especially the final forming step of the V-shaped metal plate. At this stage, not only does it need to change the placement direction of the V-shaped metal plate, but its punched position and the punching stroke of the stamping die also need to be precisely adjusted. Due to the lack of support on the inner side of the V-shaped metal plate, during the stamping process, even slight changes in the punching stroke of the stamping die may lead to the production of defective products. For example, if the punching stroke is too large, the side width of the laminate will become smaller; if the punching stroke is too small, the opening on one side of the laminate will not close properly. These problems seriously affect the processing quality and production efficiency of the laminate. Summary of the Invention

[0004] The purpose of the present invention is to provide a layer plate bending device, which solves the problem that the existing layer plate forming process steps are complicated, the final forming of the V-shaped plate requires adjustment of the placement angle and stamping parameters, and there is no support on the inner side. A slight change in the stamping stroke can easily cause the layer plate to deform and become a defective product, affecting the layer plate processing efficiency and quality.

[0005] To achieve the above-mentioned object, the present invention provides the following technical solution: a layer plate bending device, comprising: an upper die assembly and a lower die table, the upper die assembly being used to punch a metal plate body placed on the upper side of the lower die table and, in cooperation with the lower die table, bend the metal plate body into a layer plate body; The upper die assembly includes a hanging plate, a punching mechanism is provided on the upper side of the hanging plate, a die plate is rotatably mounted on the lower side of the hanging plate, and a lower press seat for pushing the die plate is also provided on the lower side of the hanging plate. Two lower press seats are provided and distributed at both ends of the hanging plate; The lower die table includes two symmetrically arranged mounting seats, one side of the mounting seat is provided with a rotatably assembled lower clamping die, a pressing plate is movably provided between the two lower clamping dies, and one side of the lower clamping die is provided with an extrusion block protruding below the pressing plate; The pressing plate is pushed by the hanging plate through the lower pressing seat to squeeze the metal plate into the groove between the two lower clamping dies. The pressing plate also pushes the pressing plate downward synchronously through the metal plate body. The downward moving pressing plate pushes the extrusion block to rotate the lower clamping die to bend one side of the metal plate body into a vertical state. The corners at both ends of the metal plate body are closed above the pressing plate. The metal plate body is formed into a layer plate body on the outer surface of the pressing plate. As the hanging plate rises, one end of the pressing plate rotates and tilts downward, and the layer plate body is unloaded from the downward tilted end of the pressing plate.

[0006] As a further description of the above technical solution: the hanging plate rotates and assembles the press plate below through a bracket fixed on one side, and a limit block for limiting the rotation angle of the press plate is also fixed on the lower side of the bracket.

[0007] As a further description of the above technical solution: the surface of the pressing plate is provided with a pushing component for unloading the layer plate body.

[0008] As a further description of the above technical solution: a horizontal slide groove is provided on the surface of the pressing plate; The pushing assembly includes a screw rod rotatably assembled on the inner side of the slide groove, and a movable block slidably arranged on the inner side of the slide groove. Push blocks are fixedly connected on both sides of the movable block. The movable block and the screw rod form a threaded connection structure. A motor is provided at one end of the screw rod to drive it to rotate. The motor is arranged at one end of the pressing plate close to the bracket.

[0009] As a further description of the above technical solution: a support frame for rotating and assembling the lower clamping mold is provided on one side of the mounting seat; Both ends of the lower clamping mold are provided with tension springs and limiting columns. Under normal conditions, the tension springs pull the lower clamping mold, and under the limiting action of the limiting columns, the adjacent sides of the two lower clamping molds form a "V" shape.

[0010] As a further description of the above technical solution: a support assembly is provided on the lower side of the pressing plate, and the support assembly elastically supports the pressing plate; The support assembly includes a telescopic sleeve rod arranged on the lower side of the pressure plate, and a spring sleeved on the outer side of the telescopic sleeve rod, and the spring elastically pushes the pressure plate upward.

[0011] As a further description of the above technical solution: the lower surface of the support assembly is provided with a horizontal plane portion, and inclined portions symmetrically arranged on both sides of the plane portion; The upper surface of the extrusion block and the side surface adjacent to the lower clamping die form a vertical structure.

[0012] As a further description of the above technical solution: the pressing plate pushes the extrusion block so that the side surface of the lower clamping mold is in a vertical state, and the height of the upper surface of the pressing plate is lower than the horizontal height of the lower clamping mold rotation axis; The two sides of the pressing plate are provided with inclined surfaces 1.

[0013] As a further description of the above technical solution: a support plate is assembled on one side of the mounting seat, and the support plate is used to horizontally support the metal plate body placed on the upper side of the mounting seat.

[0014] As a further description of the above technical solution: a barrier for locating the placement position of the metal plate is provided on the upper side of the support plate.

[0015] In summary, due to the adoption of the above-mentioned technical scheme, the beneficial effect of the present invention is: the lower pressure seat is pushed by the hanging plate, and the pressure plate is further pushed, thereby squeezing the metal plate body into the groove between the two lower clamping dies, and the downward-moving pressure plate also pushes the pressure plate downward synchronously through the metal plate body, so that the downward-moving pressure plate pushes the extrusion block, prompting the lower clamping die to rotate around the axis, and bends one side of the metal plate body into a vertical state. At the same time, the corners at both ends of the metal plate body can be closed above the pressure plate, so that the metal plate body can be formed into a layer plate body at one time on the outer surface of the pressure plate, which facilitates the direct molding of the layer plate body and improves the processing efficiency. At the same time, because the inner side of the layer plate body is supported by the pressure plate, its production yield is also improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the structure of the existing upper pressing mechanism and the lower pressing mechanism; Figure 2 It is a schematic diagram of the existing metal plate forming state; Figure 3 It is a schematic diagram of the overall structure of the present invention; Figure 4 This is a schematic diagram of the overall front structure of the present invention; Figure 5 Schematic diagram of the structure of the upper die assembly of the present invention; Figure 6 Schematic diagram of the lower die table structure of the present invention; Figure 7 It is a schematic diagram of the pressing plate structure of the present invention; Figure 8 This is a schematic diagram of the upper die assembly and the lower die stage of the present invention punching a metal plate; Figure 9 This is a schematic diagram of the upper die assembly and the lower die table punching the laminate body of the present invention; Figure 10 This is a schematic diagram of a state in which the lower corner of the layer plate body of the present invention is further bent.

[0017] In the figure: 10, upper die assembly; 11, hanging plate; 12, die plate; 121, inclined plane 1; 13, lower die seat; 14, bracket; 15, limit block; 16, screw rod; 17, movable block; 18, push block; 19, motor; 20, lower die table; 21, mounting seat; 211, support frame; 22, lower clamping die; 221, extrusion block; 222, tension spring; 223, limit column; 23, press plate; 231, flat surface; 232, inclined surface; 24, support assembly; 241, telescopic sleeve; 242, spring; 30, support plate; 31, enclosure; 41, metal plate; 42, V-shaped plate; 43, layer plate body; 101. Upper pressure mechanism; 201. Lower pressure mechanism. DETAILED DESCRIPTION

[0018] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0019] In order to further understand the content of the present invention, the present invention is described in detail with reference to the accompanying drawings.

[0020] Combine Figure 1-Figure 2 In the existing stamping process of the metal plate body 41 by the upper pressing mechanism 101 cooperating with the lower pressing mechanism 201, the upper pressing mechanism 101 itself will block the metal plate body 41, so that the outer end of the metal plate body 41 cannot be directly closed, and can only be initially stamped into the shape of a V-shaped plate body 42. Subsequently, it is necessary to adjust the V-shaped plate body 42 to a horizontal state, and place the side of the V-shaped plate body 42 away from the opening under the upper pressing mechanism 101, and it is necessary to accurately control the downward stamping stroke of the upper pressing mechanism 101 to ensure that the V-shaped plate body 42 is stamped into the shape of the layer body 43. For the operation at this stage, it is necessary not only to change the placement direction of the V-shaped plate body 42, but also to accurately adjust its stamped position and the stamping stroke of the upper pressing mechanism 101. Due to the lack of support on the inner side of the V-shaped plate body 42, during the stamping process, slight changes in the stamping stroke of the upper pressing mechanism 101 will lead to the production of defective products. For example, if the punching stroke is too large, the side width of the layer plate body 43 will be reduced; and if the punching stroke is too small, the opening on one side of the layer plate body 43 will not be fully closed. These problems will affect the processing quality and production efficiency of the layer plate body 43.

[0021] Combine Figure 3-Figure 10To solve the above problems, this invention provides a layer plate bending device, comprising an upper die assembly 10 and a lower die table 20. The upper die assembly 10 is used to punch a metal plate body 41 placed on the upper side of the lower die table 20, and cooperate with the lower die table 20 to bend it into a layer plate body 43. Specifically, the upper die assembly 10 includes a hanging plate 11, and a punching mechanism (not shown in the figure) is provided on the upper side of the hanging plate 11. The punching mechanism is preferably a hydraulic cylinder, which provides downward punching pressure for the hanging plate 11. The lower side of the hanging plate 11 is rotatably equipped with a die plate 12, which is combined with the Figure 2 and Figure 5 The thickness of the pressing plate 12 is adapted to the inner width of the layer body 43, and the height of the pressing plate 12 is slightly smaller than the inner height of the layer body 43. A bracket 14 is fixedly provided on one side of the hanging plate 11, and the pressing plate 12 is rotatably assembled on the lower side of the bracket 14, thereby rotatably assembling the pressing plate 12 below the hanging plate 11. A limit block 15 is also fixedly provided on the lower side of the bracket 14 to limit the rotation angle of the pressing plate 12. The lower side of the hanging plate 11 is also equipped with a lower pressing seat 13 for pushing the pressing plate 12. Two lower pressing seats 13 are provided and distributed at both ends of the hanging plate 11.

[0022] When the punching mechanism controls the hanging plate 11 to descend, the hanging plate 11 can push the pressing plate 12 downward through the lower pressing seat 13; and when the hanging plate 11 is controlled to rise, the pressing plate 12 is acted upon by gravity, and its end away from the limit block 15 rotates downward. Subsequently, under the limiting action of the limit block 15 on the pressing plate 12, the pressing plate 12 maintains an inclined state. Recombination Figure 6 As shown, the lower die table 20 includes two symmetrically arranged mounting seats 21, one side of the mounting seat 21 is provided with a rotatably assembled lower clamping die 22, and one side of the mounting seat 21 is provided with a support frame 211 for rotatably assembling the lower clamping die 22. Both ends of the lower clamping die 22 are provided with tension springs 222 and limiting columns 223. Under normal conditions, the tension springs 222 pull the lower clamping die 22, and under the limiting action of the limiting columns 223, the adjacent sides of the two lower clamping die 22 form a "V" shape; A pressure plate 23 is movably positioned between the two lower clamping molds 22. A support assembly 24 is positioned below the pressure plate 23 to elastically support the pressure plate 23. The support assembly 24 comprises a telescopic rod 241 positioned below the pressure plate 23 and a spring 242 positioned outside the telescopic rod 241. The spring 242 elastically pushes the pressure plate 23 upward. An extrusion block 221 is positioned on one side of the lower clamping mold 22, protruding below the pressure plate 23. The upper surface of the extrusion block 221 is perpendicular to the side surface adjacent to the lower clamping mold 22. Specifically, the metal plate body 41 is placed on the upper side of the mounting seat 21. When the hanging plate 11 pushes the pressing plate 12 through the lower pressing seat 13 to squeeze the metal plate body 41 into the groove between the two lower clamping dies 22, the clamping plate 12 will also push the pressing plate 23 downward synchronously through the metal plate body 41. The downward moving pressing plate 23 pushes the extrusion block 221, which will cause the lower clamping die 22 to rotate around the axis, prompting the lower clamping die 22 to rotate and bend one side of the metal plate body 41 into a vertical state. The corners at both ends of the metal plate body 41 can be closed above the pressing plate 12. Therefore, the metal plate body 41 can be formed into a layer plate body 43 on the outer surface of the pressing plate 12 at one time, which facilitates the direct molding of the layer plate body 43. While improving efficiency, since the inner side of the layer plate body 43 is supported by the pressing plate 12, its production yield is also improved. Finally, the height of the hanging plate 11 is controlled to rise, and one end of the pressing plate 12 is rotated and tilted downward. Subsequently, the layer plate body 43 formed on the surface of the pressing plate 12 can be unloaded from the downward-tilted end.

[0023] Combine Figure 5 In order to improve the blanking efficiency of the layer body 43 on the surface of the pressing plate 12, a pushing component for blanking the layer body 43 is provided on the surface of the pressing plate 12, and a horizontal chute is opened on the surface of the pressing plate 12; The pushing assembly includes a screw rod 16 rotatably assembled on the inner side of the slide groove, and a movable block 17 slidably arranged on the inner side of the slide groove. Push blocks 18 are fixedly connected on both sides of the movable block 17. The movable block 17 and the screw rod 16 form a threaded connection structure. One end of the screw rod 16 is provided with a motor 19 for driving it to rotate. The motor 19 is arranged at one end of the pressing plate 12 close to the bracket 14. The output end of the motor 19 drives the screw rod 16 to rotate through a gear transmission structure.

[0024] Specifically, after the layer body 43 is formed on the outer surface of the pressing plate 12, the motor 19 drives the screw 16 to rotate, causing the movable block 17 to move in the slide groove on the surface of the pressing plate 12, and the push blocks 18 connected on both sides of the movable block 17 can push the layer body 43 on the surface of the pressing plate 12 to one side until the layer body 43 falls off from the downward-tilted end of the pressing plate 12, completing the blanking operation.

[0025] It should be noted that after the movable block 17 slides from one end to the other in the slide groove, a part of one end of the layer body 43 is still sleeved on one end of the pressing plate 12, but relying on the weight of the layer body 43 itself and the pressing plate 12 in an inclined state, the layer body 43 can automatically fall off at one end of the pressing plate 12.

[0026] Combine Figures 6-10Due to the internal stress of the layer plate body 43 itself, the layer plate body 43 formed by bending through the lower clamping die 22 will rebound after leaving the inner bending area of ​​the lower clamping die 22, which will eventually affect the forming effect of the layer plate body 43.

[0027] To address the above problem, a horizontal plane portion 231 and inclined portions 232 symmetrically arranged on both sides of the plane portion 231 are provided on the lower surface of the support assembly 24; The pressing plate 23 pushes the extrusion block 221. When the side of the lower clamping mold 22 is in a vertical state, the upper surface height of the pressing plate 23 is slightly lower than the horizontal height of the rotation axis of the lower clamping mold 22. In addition, the pressing plate 12 is provided with an inclined surface 121 on both sides.

[0028] Specifically, the flat portion 231 of the pressing plate 23 pushes the extrusion block 221, which can squeeze the side of the lower clamping die 22 into a vertical state. At the same time, the position of the upper surface of the pressing plate 23 corresponds to the position of the lower end of the layer body 43, that is, the position where the lower side of the layer body 43 is bent. When the pressing plate 12 is continued to be controlled to descend, the inclined portion 232 of the pressing plate 23 will continue to push the extrusion block 221, prompting the side of the lower clamping die 22 on the upper side of the rotating shaft to close. Figure 10 In this way, the corner of the lower side of the layer plate body 43 is further bent inward to offset the rebound phenomenon at the lower end of the layer plate body 43.

[0029] The included angle between the flat portion 231 and the inclined portion 232 is equivalent to the included angle when the lower clamping die 22 further bends the layer plate body 43 , and the included angle is between 1° and 3°.

[0030] It should be noted that when the lower mold 22 further bends the bottom of the layer body 43, although the folded edge on the upper side of the layer body 43 will form an obstruction, the surfaces on both sides of the layer body 43 that are equivalent to the height will bend adaptively. The bending radius is within the elastic deformation limit of the layer body 43. When the layer body 43 is separated from the lower mold 22, the bent part on the side of the layer body 43 will automatically recover when the folded corner on the lower side of the layer body 43 rebounds.

[0031] A support plate 30 is assembled on one side of the mounting seat 21, and the support plate 30 is used to horizontally support the metal plate body 41 placed on the upper side of the mounting seat 21. A fence 31 is provided on the upper side of the support plate 30 for locating the placement position of the metal plate body 41. The fence 31 limits the metal plate body 41, so that after the metal plate body 41 is placed on the upper side of the lower die table 20, its part to be bent can be accurately placed directly above the lower die table 20.

[0032] The above description is only a preferred specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any technician familiar with the technical field, within the technical scope disclosed by the present invention, who makes equivalent replacements or changes based on the technical solution and inventive concept of the present invention, should be covered by the scope of protection of the present invention.

Claims

1. A layer plate bending device, characterized in that ,include: An upper die assembly (10) and a lower die table (20), wherein the upper die assembly (10) is used to punch a metal plate body (41) placed on the upper side of the lower die table (20), and cooperates with the lower die table (20) to bend the metal plate body (41) into a laminate body (43); The upper die assembly (10) includes a hanging plate (11), a punching mechanism is provided on the upper side of the hanging plate (11), a die plate (12) is rotatably mounted on the lower side of the hanging plate (11), and a lower pressing seat (13) is also provided on the lower side of the hanging plate (11) for pushing the die plate (12), and two lower pressing seats (13) are provided and distributed at both ends of the hanging plate (11); The lower die table (20) comprises two symmetrically arranged mounting seats (21), one side of the mounting seat (21) is provided with a rotatably assembled lower clamping die (22), a pressing plate (23) is movably arranged between the two lower clamping dies (22), and one side of the lower clamping die (22) is provided with an extrusion block (221) protruding below the pressing plate (23); The hanging plate (11) pushes the pressing plate (12) through the lower pressing seat (13) to squeeze the metal plate body (41) into the groove between the two lower clamping molds (22). The pressing plate (12) also pushes the pressing plate (23) downward synchronously through the metal plate body (41). The downward moving pressing plate (23) pushes the extrusion block (221), so that the lower clamping mold (22) rotates to bend one side of the metal plate body (41) into a vertical state. The folded corners at both ends of the metal plate body (41) are closed above the pressing plate (12). The metal plate body (41) is formed into a layer plate body (43) on the outer surface of the pressing plate (12). As the hanging plate (11) rises in height, one end of the pressing plate (12) rotates and tilts downward, and the layer plate body (43) is unloaded from the downward tilted end of the pressing plate (12).

2. The layer plate bending device according to claim 1, characterized in that: The hanging plate (11) rotates and assembles the press plate (12) below via a bracket (14) fixedly arranged on one side, and a limit block (15) for limiting the rotation angle of the press plate (12) is also fixedly arranged on the lower side of the bracket (14).

3. The layer plate bending device according to claim 1, characterized in that: The surface of the pressing plate (12) is provided with a pushing component for unloading the layer plate body (43).

4. The layer plate bending device according to claim 3, characterized in that: A horizontal sliding groove is provided on the surface of the pressing plate (12); The pushing assembly includes a screw rod (16) rotatably mounted on the inner side of the slide groove, and a movable block (17) slidably arranged on the inner side of the slide groove, wherein push blocks (18) are fixedly connected to both sides of the movable block (17), and the movable block (17) and the screw rod (16) form a threaded connection structure. A motor (19) for driving the screw rod (16) to rotate is provided at one end, and the motor (19) is arranged at one end of the pressing plate (12) close to the bracket (14).

5. The layer plate bending device according to claim 1, characterized in that: A support frame (211) for rotating and assembling the lower clamping mold (22) is provided on one side of the mounting seat (21); Both ends of the lower clamping mold (22) are provided with a tension spring (222) and a limiting column (223). Under normal conditions, the tension spring (222) pulls the lower clamping mold (22), and under the limiting action of the limiting column (223), the adjacent sides of the two lower clamping molds (22) form a "V" shape.

6. The layer plate bending device according to claim 5, characterized in that: A support assembly (24) is provided on the lower side of the pressing plate (23), and the support assembly (24) elastically supports the pressing plate (23); The support assembly (24) comprises a telescopic sleeve rod (241) arranged on the lower side of the pressure plate (23), and a spring (242) sleeved on the outside of the telescopic sleeve rod (241), wherein the spring (242) elastically pushes the pressure plate (23) upward.

7. The layer plate bending device according to claim 6, characterized in that: The lower surface of the support assembly (24) is provided with a horizontal plane portion (231), and inclined portions (232) symmetrically arranged on both sides of the plane portion (231); The upper surface of the extrusion block (221) and the side surface adjacent to the lower clamping die (22) are in a vertical structure.

8. The layer plate bending device according to claim 7, characterized in that: The pressing plate (23) pushes the extrusion block (221) so that the side surface of the lower clamping mold (22) is in a vertical state, and the height of the upper surface of the pressing plate (23) is lower than the horizontal height of the rotation axis of the lower clamping mold (22); The pressing plate (12) is provided with inclined surfaces (121) on both sides.

9. The layer plate bending device according to claim 1, characterized in that: A support plate (30) is mounted on one side of the mounting seat (21), and the support plate (30) is used to horizontally support a metal plate body (41) placed on the upper side of the mounting seat (21).

10. The layer plate bending device according to claim 9, characterized in that: The upper side of the support plate (30) is provided with a fence (31) for locating the placement position of the metal plate body (41).

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