Marine plate bending die with bending angle self-control function

Abstract

The invention discloses a marine plate bending die with a bending angle self-control function, and relates to the technical field of plate bending, and the marine plate bending die comprises a rack and a bending mechanism; the bending mechanism comprises a first bending unit and a second bending unit; the first bending unit comprises an extrusion assembly, and the extrusion assembly is connected with the rack; the second bending unit comprises a deflection assembly and a bending assembly, the deflection assembly and the bending assembly are connected with the rack, and the deflection assembly is arranged between the bending assembly and the extrusion assembly; through mutual cooperation of the first bending unit and the second bending unit, namely mutual cooperation of the extrusion assembly and the deflection assembly, the plate is extruded and folded by the extrusion assembly and the deflection assembly, then the plate bending effect is achieved through the combined action of extrusion and turnover, and therefore the plate bending efficiency is improved.

Description

Technical Field

[0001] This invention relates to the field of sheet metal bending technology, specifically a marine sheet metal bending mold with an automatic bending angle control function. Background Technology

[0002] Marine plate bending dies are key process equipment in the shipbuilding industry. They are mainly used to cold bend and form metal plates used in hull structures to meet the shape requirements of hull curved surfaces, sides, bulkheads and other parts.

[0003] Traditional marine bending dies typically use upper and lower dies with a fixed angle to achieve unidirectional extrusion forming of sheet metal through hydraulic or mechanical pressure. However, in actual production, ship sheet metal often needs to be bent into different angles or even multiple bends. Traditional dies are difficult to adapt flexibly to changing angle requirements, often requiring die replacement or multiple positioning processes, resulting in low production efficiency. Summary of the Invention

[0004] The purpose of this invention is to provide a marine plate bending mold with an automatic bending angle control function, so as to solve the problem of fixed bending angle in the prior art.

[0005] To achieve the above objectives, the present invention provides the following technical solution:

[0006] A bending die for marine steel plates with automatic bending angle control function includes a bending mechanism; the bending mechanism includes a first bending unit and a second bending unit.

[0007] The first bending unit includes an extrusion assembly, which extrudes the sheet metal.

[0008] The second bending unit includes a deflection component and a bending component. The deflection component is disposed between the bending component and the extrusion component. The deflection component performs a folding process on the sheet metal. The extrusion component and the deflection component cooperate to perform a folding and bending process on the sheet metal. The bending component ejects and releases the bent sheet metal.

[0009] By having the first bending unit and the second bending unit work together, that is, by having the extrusion component and the deflection component work together, the sheet metal is squeezed and folded by the extrusion component and the deflection component. The combined action of extrusion and folding achieves the bending effect of the sheet metal, thereby improving the bending efficiency of the sheet metal.

[0010] Preferably, the extrusion assembly includes a first power mechanism and a first motion mechanism, wherein the first motion mechanism is connected to the first power mechanism;

[0011] The deflection assembly includes a rotation mechanism connected to the frame;

[0012] The bending assembly includes a second power mechanism and a shrinking mechanism, wherein the shrinking mechanism is connected to the second power mechanism.

[0013] When the sheet metal is bent, the first power mechanism drives the first motion mechanism to move, and the first motion mechanism will squeeze and drive the rotating mechanism to rotate during the movement, so that the first motion mechanism and the rotating mechanism cooperate with each other to complete the bending effect of the sheet metal.

[0014] After the sheet is bent, the first motion mechanism resets under the action of the first power mechanism. At the same time as the first motion mechanism resets, the second power mechanism drives the shrinking mechanism to move, so that the shrinking mechanism pushes out the bent sheet, causing the bent sheet to separate from the rotating mechanism, thereby achieving the effect of ejecting and separating the sheet.

[0015] Preferably, the first power mechanism includes a power block, the power block is connected to a first driving member, the power block is provided with a first driving group, and the first driving group is connected to a first motion mechanism;

[0016] The rotating mechanism includes a deflection column, with reset mechanisms at both ends of the deflection column, a flat plate groove in the middle of the deflection column, and a rotating assembly on the deflection column, the rotating assembly being rotatably connected to the flat plate groove.

[0017] The second power mechanism includes a second driving member and a moving cavity, wherein the second driving member is disposed within the moving cavity;

[0018] The contraction mechanism includes a movable block, the second drive member is connected to the movable block, and the movable block is slidably connected to the movable cavity.

[0019] During the sheet material conveying stage, the deflection column is in an undeflected state. At this time, the plane of the plate trough and the plane of the frame are on the same horizontal plane, so that the two plate troughs and the moving block form the sheet material placement plane of the bending area.

[0020] During the sheet metal bending stage, the controller first starts the first drive group, which drives the first motion mechanism to move. This allows the first motion mechanism to adjust the bending die according to the required bending angle. After the first motion mechanism is adjusted, the controller starts the first drive unit, which pushes the power block to move. This pushes the power block and causes the first motion mechanism to move. As the first motion mechanism moves, it first encounters the sheet metal. Then, the first motion mechanism continues to advance, and the sheet metal is squeezed by the first motion mechanism, causing the moving block to contract towards the side closer to the moving cavity. After the moving block contracts and moves, the first motion mechanism moves from the center of the two deflection columns towards the side closer to the moving cavity, squeezing the deflection columns and causing them to rotate towards the side closer to the first motion mechanism. The two rotating deflection columns cooperate with the first motion mechanism to complete the sheet metal bending process.

[0021] When the side of the first motion mechanism is parallel to the plane of the plate groove, the first motion mechanism moves to the maximum stroke of the bending angle, and then the first motion mechanism and the plate groove work together to bend and squeeze the plate, so that the plate is bent and shaped.

[0022] The cooperation between the two flat grooves and the first motion mechanism enables the extrusion and folding to work together, which speeds up the bending rate of the sheet metal and improves the bending efficiency. At the same time, the cooperation between the first motion mechanism and the deflection column ensures that the sheet metal is subjected to extrusion force on both sides, thereby avoiding stress reset after extrusion and improving the bending quality of the sheet metal.

[0023] After the sheet metal is bent, the controller controls the first drive component to reset the first motion mechanism, causing the first motion mechanism to disengage from the sheet metal. Then, the controller controls the second drive component to start, causing the second drive component to push the moving block to move away from the moving cavity. As the moving block moves, it pushes the bent sheet metal. At the same time, the deflection column is reset and deflected under the action of the elastic element, so that the deflection column and the moving block cooperate with each other to disengage the bent sheet metal from the plate groove. Then, the bent sheet metal is pushed by the operator and discharged from the frame through the conveyor roller. The plane of the plate groove and the moving block are once again at the same level as the plane of the frame.

[0024] Preferably, the first motion mechanism includes a first motion group, which consists of a rotating shaft and at least two first rotating plates. The rotating shaft is connected to a power block via a bracket. The two first rotating plates are symmetrically arranged on both sides of the rotating shaft. The first rotating plates are connected to a first drive group. One end of the first rotating plate is rotatably connected to the rotating shaft, and the other end of the first rotating plate is slidably connected to the power block.

[0025] When the bending angle needs to be adjusted, the controller controls the first drive group to start. The first drive group drives the first rotating plate to rotate, so that one end of the first rotating plate deflects around the axis of the rotating shaft, while the other end of the first rotating plate is slidably connected to the power block. The two first rotating plates rotate synchronously, so that the angle formed by the two first rotating plates changes, and the first rotating plate changes in the state of an isosceles triangle.

[0026] When specific angles are required, the controller can control the power units to output power separately, so that the two first rotating plates can rotate at different angles. This can meet the bending requirements of different angles, improve the equipment's adaptability to bending materials at different angles, and eliminate the need to replace different bending equipment according to the bending angle of the material, thereby improving the efficiency of bending materials.

[0027] Preferably, the first motion mechanism includes a second motion group, which consists of two rotating cavities and at least two second rotating plates. The rotating cavities are symmetrically arranged on both sides of the power block, and the second rotating plates are disposed in the rotating cavities. The second rotating plates are connected to the first drive group and are rotatably connected to the rotating cavities.

[0028] When a secondary bending is required, the controller controls the first drive group to drive the second rotating plate to rotate. The second rotating plate rotates towards the side closer to the rotating cavity, causing the second rotating plate to retract into the rotating cavity. Subsequently, the deflection plate drives the sheet material to rotate towards the side closer to the second rotating plate, so that the deflection plate and the second rotating plate cooperate to complete the secondary bending process of the sheet material.

[0029] Preferably, the rotating assembly consists of a rotating arc and a deflection plate. The rotating arc is disposed on a deflection column, and the deflection plate is rotatably connected to the deflection column. A gear is disposed on the side of the deflection plate near the rotating arc. A toothed ring arc is disposed inside the rotating arc. The gear meshes with the toothed ring arc for transmission. A power component is disposed on the deflection plate, and the power component is connected to the gear.

[0030] The controller starts the power component, which drives the gear to rotate. During the rotation of the gear, it meshes with the ring gear, and then the gear drives the deflection plate to rotate during the meshing transmission. This causes the deflection plate to rotate towards the side closer to the second rotating plate. As the deflection plate rotates, it squeezes the sheet material, causing the sheet material to be squeezed between the deflection plate and the second rotating plate. This allows the deflection plate and the second rotating plate to cooperate to achieve a secondary bending process on the sheet material.

[0031] By using the deflection plate and the second rotating plate in coordination, the sheet material can be bent twice directly after the first bending and shaping, without the need for repositioning and bending the sheet material again. This saves bending process steps and speeds up the efficiency of sheet material bending and forming.

[0032] Preferably, the rotation angle of the first rotating plate is 0-40°.

[0033] Preferably, the rotation angle of the second rotating plate is 0-65°.

[0034] Preferably, the bending mechanism includes a frame, which is connected to a first bending unit and a second bending unit. Several conveying rollers are symmetrically arranged on both sides of the frame, and the conveying rollers are rotatably connected to the frame.

[0035] Compared with the prior art, the beneficial effects of the present invention are:

[0036] By setting up the coordinated operation of the first and second bending units, sheet metal bending under the combined action of extrusion and flipping is achieved, significantly improving bending efficiency and forming quality. Specifically, the extrusion component and the deflection component work together to ensure that the sheet metal is subjected to force on both sides simultaneously, effectively avoiding stress recovery and improving the shape stability after bending. The first motion mechanism can be adaptively adjusted according to the bending angle requirements, and the angles of the first or second rotating plate can be rotated separately to meet the needs of different angles or even asymmetrical bending, enhancing the process adaptability of the equipment. The setting of the rotating group and the deflection plate supports the secondary bending function, which can complete multiple bending segments in one positioning, greatly reducing the time for repeated positioning and process changeover. The elastic reset design of the moving block and the deflection column, together with the conveyor roller, realizes the automatic ejection and reset of the sheet metal, further improving the automation level of continuous operation. Attached Figure Description

[0037] Figure 1 This is a perspective view of the present invention;

[0038] Figure 2 This is a front view of Embodiment 1;

[0039] Figure 3 This is a schematic diagram of the internal structure of Example 1;

[0040] Figure 4 This is a front view of Embodiment 2;

[0041] Figure 5 This is a schematic diagram of the internal structure of Example 2;

[0042] Figure 6 This is a schematic diagram of the structure of Embodiment 1;

[0043] Figure 7 This is a schematic diagram of the structure of Example 2;

[0044] Figure 8 This is a schematic diagram of the rotating mechanism;

[0045] Figure 9 for Figure 8 Enlarged view of point A in the middle;

[0046] In the diagram: 1. Frame; 11. Conveyor roller;

[0047] 2. Bending mechanism;

[0048] 3. First bending unit; 31. Extrusion assembly; 32. First power mechanism; 321. Power block; 33. First motion mechanism; 34. First motion group; 341. Rotating shaft; 342. First rotating plate; 35. Second motion group; 351. Rotating cavity; 352. Second rotating plate;

[0049] 4. Second bending unit; 41. Deflection assembly; 42. Bending assembly; 43. Rotation mechanism; 431. Deflection column; 4311. Flat plate groove; 44. Second power mechanism; 441. Moving cavity; 45. Retraction mechanism; 451. Moving block; 46. Rotation group; 461. Rotation arc; 462. Deflection plate; 463. Gear; 464. Gear ring arc. Detailed Implementation

[0050] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0051] Example: Figures 1-9 As shown, the present invention provides a technical solution: a marine plate bending mold with automatic bending angle control function, comprising a frame 1 and a bending mechanism 2; the bending mechanism 2 includes a first bending unit 3 and a second bending unit 4;

[0052] The first bending unit 3 includes an extrusion assembly 31, which is connected to the frame 1;

[0053] The second bending unit 4 includes a deflection component 41 and a bending component 42, which are respectively connected to the frame 1. The deflection component 41 is disposed between the bending component 42 and the extrusion component 31.

[0054] In one specific embodiment of the present invention, a plurality of conveying rollers 11 are symmetrically arranged on both sides of the frame 1, and the conveying rollers 11 are rotatably connected to the frame 1.

[0055] As a specific embodiment of the present invention, the extrusion assembly 31 includes a first power mechanism 32 and a first motion mechanism 33, wherein the first power mechanism 32 is connected to the frame 1 and the first motion mechanism 33 is connected to the first power mechanism 32.

[0056] The deflection assembly 41 includes a rotation mechanism 43, which is connected to the frame 1.

[0057] The bending assembly 42 includes a second power mechanism 44 and a shrinking mechanism 45. The second power mechanism 44 is connected to the frame 1, and the shrinking mechanism 45 is connected to the second power mechanism 44.

[0058] In one specific embodiment of the present invention, the first power mechanism 32 includes a power block 321, the power block 321 is connected to a first driving member (the first driving member is a hydraulic cylinder), the first driving member is mounted on the frame 1, the power block 321 is provided with a first driving group (the first driving group is a hydraulic cylinder group), and the first driving group is connected to the first motion mechanism 33.

[0059] The rotating mechanism 43 includes a deflection column 431, which is rotatably connected to the frame 1. A reset mechanism is provided between the two ends of the deflection column 431 (the reset mechanism can be a torsion spring, one end of which is connected to the frame 1 and the other end of which is connected to the deflection column 431; the reset mechanism can also be a motor, which drives the deflection column 431 to deflect and move). A flat plate groove 4311 is provided in the middle of the deflection column 431, and a rotating assembly 46 is provided on the deflection column 431. The rotating assembly 46 is rotatably connected to the flat plate groove 4311.

[0060] The second power mechanism 44 includes a second driving member (the second driving member is a hydraulic cylinder) and a moving cavity 441, wherein the second driving member is disposed in the moving cavity 441;

[0061] The retraction mechanism 45 includes a moving block 451, the second driving member is connected to the moving block 451, and the moving block 451 is slidably connected to the moving cavity 441.

[0062] Example 1: The first motion group 34 changes the bending angle of the sheet metal by rotating the first rotating plate 342 to perform a bending.

[0063] In one specific embodiment of the present invention, the first motion mechanism 33 includes a first motion group 34, which consists of a rotating shaft 341 and at least two first rotating plates 342. The rotating shaft 341 is connected to the power block 321 via a bracket. The two first rotating plates 342 are symmetrically arranged on both sides of the rotating shaft 341. The first rotating plates 342 are connected to a first drive group. One end of the first rotating plate 342 is rotatably connected to the rotating shaft 341, and the other end of the first rotating plate 342 is slidably connected to the power block 321.

[0064] In one specific embodiment of the present invention, the rotation angle of the first rotating plate 342 is 0-40°.

[0065] Example 2: The deflection plate 462 and the second rotating plate 352 work together to perform a second bending on the sheet material after the first bending.

[0066] In one specific embodiment of the present invention, the first motion mechanism 33 includes a second motion group 35, which consists of two rotating cavities 351 and at least two second rotating plates 352. The rotating cavities 351 are symmetrically arranged on both sides of the power block 321, and the second rotating plates 352 are disposed in the rotating cavities 351. The second rotating plates 352 are connected to the first drive group and are rotatably connected to the rotating cavities 351.

[0067] In one specific embodiment of the present invention, the rotation angle of the second rotating plate 352 is 0-65°.

[0068] In one specific embodiment of the present invention, the rotating assembly 46 consists of a rotating arc 461 and a deflection plate 462. The rotating arc 461 is disposed on the deflection column 431, and the deflection plate 462 is rotatably connected to the deflection column 431. A gear 463 is disposed on the side of the deflection plate 462 near the rotating arc 461, and a gear ring arc 464 is disposed inside the rotating arc 461. The gear 463 meshes with the gear ring arc 464 for transmission. A power component (a motor) is disposed on the deflection plate 462, and the power component is connected to the gear 463.

[0069] Working principle of the invention:

[0070] During the sheet material conveying stage, the deflection column 431 is in an undeflected state. At this time, the plane of the plate groove 4311 and the plane of the frame 1 are on the same horizontal plane, so that the two plate grooves 4311 and the moving block 451 form the sheet material placement plane of the bending area.

[0071] During the sheet metal bending stage, the controller first starts the first drive group, which drives the first motion mechanism 33 to move. The first motion mechanism 33 adjusts the bending die according to the bending angle. After the first motion mechanism 33 is adjusted, the controller starts the first drive component. The first drive group pushes the power block 321 to move, which in turn drives the first motion mechanism 33 to move. The first motion mechanism 33 will first encounter the sheet metal during its movement. Then, the first motion mechanism 33 continues to advance. Under the action of the first motion mechanism 33, the sheet metal is squeezed by the moving block 451, causing the moving block 451 to contract towards the side closer to the moving cavity 441. After the moving block 451 contracts and moves, the first motion mechanism 33 moves from the center of the two deflection columns 431 towards the side closer to the moving cavity 441, which squeezes the deflection columns 431. This causes the two deflection columns 431 to rotate towards the side closer to the first motion mechanism 33. The two rotating deflection columns 431 cooperate with the first motion mechanism 33 to complete the sheet metal bending process.

[0072] When the side of the first motion mechanism 33 is parallel to the plane of the plate groove 4311, the first motion mechanism 33 moves to the maximum stroke of the bending angle, and then the first motion mechanism 33 and the plate groove 4311 together bend and squeeze the plate, so that the plate is bent and shaped.

[0073] The cooperation between the two flat grooves 4311 and the first motion mechanism 33 enables the extrusion and folding to work together, which speeds up the bending rate of the sheet metal and improves the bending efficiency. At the same time, the cooperation between the first motion mechanism 33 and the deflection column 431 ensures that the sheet metal is subjected to extrusion force on both sides, thereby avoiding stress recovery after extrusion and improving the bending quality of the sheet metal.

[0074] After the sheet metal is bent, the controller controls the first drive component to reset the first motion mechanism 33, causing the first motion mechanism 33 to disengage from the sheet metal. Then, the controller controls the second drive component to start, causing the second drive component to push the moving block 451 to move, causing the moving block 451 to move away from the moving cavity 441. As the moving block 451 moves, it pushes the bent sheet metal to move. At the same time, the deflection column 431 is reset and deflected under the action of the elastic element, so that the deflection column 431 and the moving block 451 cooperate with each other, causing the bent sheet metal to disengage from the flat plate groove 4311. Then, the bent sheet metal is pushed by the worker and discharged from the frame 1 through the conveyor roller 11. The plane of the flat plate groove 4311 and the moving block 451 is once again at the same level as the plane of the frame 1.

[0075] Example 1:

[0076] When the bending angle needs to be adjusted, the controller controls the first drive group to start. The first drive group drives the first rotating plate 342 to rotate, so that one end of the first rotating plate 342 deflects around the axis of the rotating shaft 341, and the other end of the first rotating plate 342 is slidably connected to the power block 321. The two first rotating plates 342 rotate synchronously, so that the angle formed by the two first rotating plates 342 changes, so that the first rotating plate 342 changes in the state of an isosceles triangle.

[0077] If some special angles are required, the controller can control the power group to output power separately, so that the two first rotating plates 342 can rotate at different angles respectively, thus meeting the bending requirements at different angles;

[0078] Example 2:

[0079] When a secondary bending is required, the controller controls the first drive group to drive the second rotating plate 352 to rotate. The second rotating plate 352 rotates towards the side closer to the rotating cavity 351, causing the second rotating plate 352 to retract towards the rotating cavity 351. Then, the deflection plate 462 drives the plate to rotate towards the side closer to the second rotating plate 352, so that the deflection plate 462 and the second rotating plate 352 cooperate with each other to complete the secondary bending process of the plate.

[0080] The controller starts the power component, which drives the gear 463 to rotate. During the rotation of the gear 463, it meshes with the ring gear 464. In the process of meshing transmission, the gear 463 drives the deflection plate 462 to rotate, causing the deflection plate 462 to rotate towards the side closer to the second rotating plate 352. In the process of rotation, the deflection plate 462 squeezes the plate, causing the plate to be squeezed between the deflection plate 462 and the second rotating plate 352. The deflection plate 462 and the second rotating plate 352 cooperate to achieve the secondary bending process of the plate.

[0081] By cooperating with the deflection plate 462 and the second rotating plate 352, the sheet metal can be bent twice directly after the first bending and shaping, without the need for repositioning and bending the sheet metal, thus saving bending process steps and speeding up the efficiency of sheet metal bending and forming.

[0082] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the invention can be implemented in other specific forms without departing from its spirit or essential characteristics. Therefore, the embodiments should be considered in all respects as exemplary and non-limiting, and the scope of the invention is defined by the appended claims rather than the foregoing description. Thus, all variations falling within the meaning and scope of equivalents of the claims are intended to be included within the present invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A bending die for marine steel plates with automatic bending angle control function, characterized in that: Including the bending mechanism (2), the bending mechanism (2) includes first bending unit (3) and second bending unit (4), The first bending unit (3) includes extrusion assembly (31), and the extrusion assembly (31) is extruded to the plate; The second bending unit (4) includes deflection assembly (41) and bending assembly (42), the deflection assembly (41) is arranged between the bending assembly (42) and the extrusion assembly (31), the deflection assembly (41) is folded to the plate, the extrusion assembly (31) and the deflection assembly (41) are cooperated to extrude and overturn the plate, and the bending assembly (42) is extruded to the plate.

2. The ship plate bending die with the bending angle automatic control function according to claim 1, characterized in that: The extrusion assembly (31) includes first power mechanism (32) and first movement mechanism (33), and the first movement mechanism (33) is connected with the first power mechanism (32); The deflection assembly (41) includes rotating mechanism (43), and the rotating mechanism (43) is connected with the rack (1); The bending assembly (42) includes second power mechanism (44) and contraction mechanism (45), and the contraction mechanism (45) is connected with the second power mechanism (44).

3. The ship plate bending die with the bending angle automatic control function according to claim 2, characterized in that: The first power mechanism (32) includes power block (321), the power block (321) is connected with the first driving part, the power block (321) is provided with a first driving group, and the first driving group is connected with the first movement mechanism (33); The rotating mechanism (43) includes deflection column (431), both ends of the deflection column (431) are provided with reset mechanism, the middle part of the deflection column (431) is provided with flat plate groove (4311), the deflection column (431) is provided with rotating group (46), and the rotating group (46) is rotatably connected with the flat plate groove (4311); The second power mechanism (44) includes second driving part and moving cavity (441), and the second driving part is arranged in the moving cavity (441); The contraction mechanism (45) includes moving block (451), the second driving part is connected with the moving block (451), and the moving block (451) is slidably connected with the moving cavity (441).

4. The ship plate bending die with the bending angle automatic control function according to claim 3, characterized in that: The first movement mechanism (33) includes a first movement group (34), the first movement group (34) is composed of rotating shaft (341) and at least two first rotating plates (342), the rotating shaft (341) is connected with the power block (321) through the support, the two first rotating plates (342) are symmetrically arranged on both sides of the rotating shaft (341), the first rotating plate (342) is connected with the first driving group, one end of the first rotating plate (342) is rotatably connected with the rotating shaft (341), and the other end of the first rotating plate (342) is slidably connected with the power block (321).

5. The ship plate bending die with the bending angle automatic control function according to claim 3, characterized in that: The first motion mechanism (33) comprises a second motion group (35), the second motion group (35) is composed of two rotating cavities (351) and at least two second rotating plates (352), the rotating cavities (351) are symmetrically arranged on both sides of the power block (321), the second rotating plates (352) are arranged in the rotating cavities (351), the second rotating plates (352) are connected with the first driving group, and the second rotating plates (352) are rotationally connected with the rotating cavities (351).

6. The ship plate bending die with the bending angle automatic control function according to claim 3, characterized in that: The rotating group (46) is composed of a rotating arc (461) and a deflection plate (462), the rotating arc (461) is arranged on the deflection column (431), the deflection plate (462) is rotationally connected with the deflection column (431), a gear (463) is arranged on one side of the deflection plate (462) close to the rotating arc (461), a toothed ring arc (464) is arranged in the rotating arc (461), the gear (463) is in meshing transmission with the toothed ring arc (464), the deflection plate (462) is provided with a power member, and the power member is connected with the gear (463).

7. The ship plate bending die with the bending angle automatic control function according to claim 4, characterized in that: The rotating angle of the first rotating plate (342) is 0-40°.

8. The ship plate bending die with the bending angle automatic control function according to claim 5, characterized in that: The rotating angle of the second rotating plate (352) is 0-65°.

9. The ship plate bending die with the bending angle automatic control function according to claim 1, characterized in that: The bending mechanism (2) comprises a rack (1), the rack (1) is connected with a first bending unit (3) and a second bending unit (4), a plurality of conveying rollers (11) are symmetrically arranged on both sides of the rack (1), and the conveying rollers (11) are rotationally connected with the rack (1).

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