Continuous bending die

Abstract

The utility model relates to a continuous bending die, and belongs to the technical field of bending dies, the continuous bending die comprises a lower die floating plate, a first pneumatic part is arranged on the top surface of the lower die floating plate, and the first pneumatic part is used for blowing the bottom of a material sheet, so that one side of the material sheet inclines towards the direction deviating from the lower die floating plate; a second pneumatic part is further arranged on the top face of the lower die floating plate and used for blowing the bottoms of the inclined material pieces so that the material pieces can be separated from the lower die floating plate in the inclined direction. The device has the effect that the material sheets can be conveniently moved out.

Description

Technical Field

[0001] The present application relates to the technical field of bending dies, and in particular to a continuous bending die. Background Art

[0002] In the mold bending process, it is often necessary to realize multiple bending shapes on the same workpiece, such as bending into a portal frame with a support plate.

[0003] At present, a patent document with authorization announcement number CN206122506U discloses a top-to-bottom continuous bending die, including: an upper die mechanism and a lower die mechanism. Among them, the upper die mechanism includes: an upper die seat, an upper die forming male, an upper spring and an upper stripping plate; the lower die mechanism includes: a lower die seat, a lower spring, a lower die floating plate, a first lower die forming male and a second lower die forming male; in the above-mentioned top-to-bottom continuous bending die, the first lower die forming male and the second lower die forming male are used to carry the sheet, while the upper stripping plate and the lower die floating plate clamp the sheet. Driven by the upper die seat, the upper die forming male and the upper stripping plate move toward the lower die floating plate. The bending process can be completed with a single process of driving the upper die mechanism and the lower die mechanism to close the mold under the action of the punch press. There is no need for multiple sets of molds and multiple processes to achieve top-to-bottom continuous bending, and the structure is simple and the work efficiency is high.

[0004] However, after the blank is folded, it is stuck on the lower die floating plate, and the gap between the blank and the lower die floating plate is small, and the friction is large, which makes it difficult for the blank to be removed from the lower die floating plate. Utility Model Content

[0005] In order to facilitate the removal of the sheet, the present application provides a continuous bending die.

[0006] The continuous bending die provided in this application adopts the following technical solution:

[0007] A continuous bending mold includes a lower mold floating plate, the top surface of which is provided with a first pneumatic part, the first pneumatic part is used to blow the bottom of a sheet so that one side of the sheet is tilted away from the lower mold floating plate, and the top surface of the lower mold floating plate is also provided with a second pneumatic part, the second pneumatic part is used to blow the bottom of the tilted sheet so that the sheet is detached from the lower mold floating plate in the tilted direction.

[0008] Optionally, the first pneumatic part includes a first air pump located on one side of the lower mold floating plate, and a first air pipe is provided at the output end of the first air pump. The first air pipe enters the lower mold floating plate through the side wall of the lower mold floating plate, and the air outlet end of the first air pipe is located on the top surface of the lower mold floating plate and near the edge of the lower mold floating plate.

[0009] Optionally, the second pneumatic part includes a second air pump located on both sides of the lower mold floating plate, and a second air pipe is provided at the output end of the second air pump. The second air pipe enters the lower mold floating plate through the side wall of the lower mold floating plate, and the air outlet end of the second air pipe is located on the top surface of the lower mold floating plate and near the middle of the lower mold floating plate. The air outlet direction of the second air pipe is perpendicular to the bottom of the sheet.

[0010] Optionally, a first air outlet is provided at the top of the lower mold floating plate, the air outlet end of the first air pipe is located in the first air outlet, a cover plate is rotatably provided in the first air outlet, two cover plates are provided and are respectively located on both sides of the first air outlet, a rotation axis of the cover plate is parallel to the top surface of the lower mold floating plate, the first air pipe is located directly below the cover plate, and when the cover plate closes the first air outlet, the cover plate is flush with the lower mold floating plate.

[0011] Optionally, a gap is left between the two cover plates.

[0012] Optionally, a hinge shaft is rotatably arranged on the lower mold floating plate and located in the first air outlet, the cover plate is fixedly arranged on the hinge shaft, a torsion spring is sleeved on the hinge shaft, one side of the torsion spring is fixedly arranged on the side wall of the first air outlet, and the other side is fixedly arranged on the hinge shaft.

[0013] Optionally, a rubber tube is fixedly provided on the side of the lower mold floating plate, one side of the rubber tube is embedded in the lower mold floating plate, and the other side is located outside the lower mold floating plate, and the first air pipe and the second air pipe are embedded in the rubber tube.

[0014] Optionally, a receiving plate is embedded on the lower mold floating plate and in the second air outlet, and a plurality of air holes are opened on the receiving plate, and the air holes are evenly distributed on the receiving plate.

[0015] In summary, the present application includes at least one of the following beneficial technical effects:

[0016] 1. After the sheet is bent, the first pneumatic part acts on the sheet, so that the bent sheet tilts toward one side and separates from the lower die floating plate. Then the second pneumatic part acts on the tilted sheet, so that the sheet separates from the lower die floating plate in the tilted direction, and the material is taken out. The operation is simple and convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 is a schematic diagram of the structure of the sheet after bending in an embodiment of the present application;

[0018] Figure 2 It is a schematic diagram of the overall structure of a continuous bending die in an embodiment of the present application;

[0019] Figure 3It is a structural schematic diagram of a lower die floating plate in a continuous bending die in an embodiment of the present application;

[0020] Figure 4 It is a cross-sectional view of a lower die floating plate in a continuous bending die according to an embodiment of the present application;

[0021] Figure 5 yes Figure 4 A magnified schematic diagram of part A;

[0022] Figure 6 yes Figure 4 Schematic diagram of the enlarged portion B.

[0023] Explanation of the reference numerals: 1. lower die floating plate; 2. first air pump; 3. first air pipe; 4. second air pump; 5. second air pipe; 6. first air outlet; 7. cover plate; 8. hinge shaft; 9. torsion spring; 10. rubber tube; 11. receiving plate; 12. air hole; 13. sheet. DETAILED DESCRIPTION

[0024] The following is combined with Figure 1-6 This application is described in further detail.

[0025] The present application embodiment discloses a continuous bending die. Figure 1 and Figure 2 The continuous bending mold includes a lower mold floating plate 1, and a first pneumatic part is arranged on the top surface of the lower mold floating plate 1. The first pneumatic part is used to blow the bottom of the sheet 13, so that one side of the sheet 13 is tilted in the direction away from the lower mold floating plate 1. After the sheet 13 is tilted, it contacts the lower mold floating plate 1 only in the side wall direction; the top surface of the lower mold floating plate 1 is also provided with a second pneumatic part, and the second pneumatic part is used to blow the bottom of the tilted sheet 13, so that the sheet 13 is separated from the lower mold floating plate 1 in the tilted direction.

[0026] After the sheet 13 is bent, the first pneumatic part acts on the sheet 13 first, so that the bent sheet 13 tilts toward one side and separates from the lower die floating plate 1, and then the second pneumatic part acts on the tilted sheet 13, so that the sheet 13 detaches from the lower die floating plate 1 in the tilted direction, and the material is removed. The operation is simple and convenient.

[0027] Reference Figure 2 and Figure 3In the embodiment of the present application, the first pneumatic part includes a first air pump 2 located on one side of the lower mold floating plate 1, and a first air pipe 3 is fixedly arranged at the output end of the first air pump 2. The first air pipe 3 enters the lower mold floating plate 1 through the side wall of the lower mold floating plate 1, and the air outlet end of the first air pipe 3 is located on the top surface of the lower mold floating plate 1 and is located near the edge of the lower mold floating plate 1; start the first air pump 2, the first air pump 2 passes compressed gas into the first air pipe 3, and the compressed gas acts on the bottom of the sheet 13 to make the sheet 13 in an inclined state, and the operation is simple and convenient; at the same time, the possibility of damage to the bending part is reduced.

[0028] Reference Figure 3 and Figure 4 In the embodiment of the present application, the second pneumatic part includes a second air pump 4 located on both sides of the lower mold floating plate 1, and a second air pipe 5 is provided at the output end of the second air pump 4. The second air pipe 5 enters the lower mold floating plate 1 through the side wall of the lower mold floating plate 1, and the air outlet end of the second air pipe 5 is located on the top surface of the lower mold floating plate 1, and is located near the middle of the lower mold floating plate 1. The air outlet direction of the second air pipe 5 is perpendicular to the bottom of the sheet 13; after the sheet 13 is tilted, the second air pump 4 is started, and the second air pump 4 passes compressed air into the second air pipe 5, and acts on the tilted sheet 13, thereby causing the bent sheet 13 to fall off the lower mold floating plate 1.

[0029] Reference Figure 4 and Figure 5 In the embodiment of the present application, in order to facilitate the compressed gas in the first air pipe 3 to lift the bent material sheet 13, a first air outlet hole 6 is opened on the top of the lower mold floating plate 1, and the air outlet end of the first air pipe 3 is located in the first air outlet hole 6. A cover plate 7 is rotatably arranged in the first air outlet hole 6. When the cover plate 7 is in a horizontal state, the cover plate 7 is flush with the top surface of the lower mold floating plate 1. Two cover plates 7 are provided and are respectively located on both sides of the first air outlet hole 6. The rotation axis of the cover plate 7 is parallel to the top surface of the lower mold floating plate 1. The first air pipe 3 is located directly below the cover plate 7. When the cover plate 7 closes the first air outlet hole 6, the cover plate 7 is flush with the lower mold floating plate 1; when the first air pipe 3 transports compressed gas, the compressed gas impacts the cover plate 7, causing the cover plate 7 to rotate toward the material sheet 13, and the cover plate 7 rotates and lifts on the material sheet 13, thereby driving the material sheet 13 to tilt, and the operation is simple and convenient.

[0030] Reference Figure 4 and Figure 5 In the embodiment of the present application, a gap is left between the two cover plates 7; due to the action of the gap, the cover plate 7 is convenient for rotating out from the first air outlet 6. Furthermore, due to the action of the gap, part of the compressed gas is convenient for passing through the above-mentioned gap to impact on the material sheet 13, thereby facilitating the tilting of the material sheet 13.

[0031] Reference Figure 4 and Figure 5Furthermore, in order to facilitate the cover plate 7 to return to the first air outlet hole 6, a hinge shaft 8 is rotatably provided on the lower mold floating plate 1 and located in the first air outlet hole 6, the cover plate 7 is fixedly provided on the hinge shaft 8, and a torsion spring 9 is sleeved on the hinge shaft 8, one side of the torsion spring 9 is fixedly provided on the side wall of the first air outlet hole 6, and the other side is fixedly provided on the hinge shaft 8; when the first air pump 2 is started and stopped, under the action of the torsion spring 9, the cover plate 7 is driven to rotate toward the first air outlet hole 6.

[0032] Reference Figure 4 Furthermore, in order to reduce the possibility of damage to the first air pipe 3 and the second air pipe 5 due to the movement of the lower mold floating plate 1, a rubber tube 10 is fixedly provided on the side of the lower mold floating plate 1, one side of the rubber tube 10 is embedded in the lower mold floating plate 1, and the other side is located outside the lower mold floating plate 1, and the first air pipe 3 and the second air pipe 5 are embedded in the rubber tube 10; under the action of the rubber tube 10, the first air pipe 3 and the second air pipe 5 are protected, thereby reducing the possibility of damage to the first air pipe 3 and the second air pipe 5.

[0033] Reference Figure 4 and Figure 6 Furthermore, in order to reduce the possibility of creases being formed on the material sheet 13 at the position corresponding to the second air outlet during the bending process, a receiving plate 11 is embedded on the lower mold floating plate 1 and in the second air outlet, and a plurality of air holes 12 are opened on the receiving plate 11, and the air holes 12 are evenly distributed on the receiving plate 11; under the action of the receiving plate 11, the diameter of the second air outlet is relatively reduced, thereby reducing the possibility of creases being formed on the material sheet 13.

[0034] The implementation principle of a continuous bending die in the embodiment of the present application is:

[0035] After the sheet 13 is bent, compressed air is first applied to the sheet 13 through the first air pump 2, so that the bent sheet 13 tilts toward one side and separates from the lower die floating plate 1. Then, compressed air is applied to the tilted sheet 13 through the second air pump 4, so that the sheet 13 detaches from the lower die floating plate 1 in the tilted direction, thereby completing the material removal. The operation is simple and convenient.

[0036] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A continuous bending die, characterized in that: The invention comprises a lower die floating plate (1), the top surface of which is provided with a first pneumatic part, the first pneumatic part being used to blow the bottom of a material sheet (13) so that one side of the material sheet (13) is tilted in a direction away from the lower die floating plate (1), and the top surface of the lower die floating plate (1) is also provided with a second pneumatic part, the second pneumatic part being used to blow the bottom of the tilted material sheet (13) so that the material sheet (13) is detached from the lower die floating plate (1) in the tilted direction.

2. A continuous bending die according to claim 1, characterized in that: The first pneumatic component comprises a first air pump (2) located on one side of the lower mould floating plate (1); a first air pipe (3) is provided at the output end of the first air pump (2); the first air pipe (3) enters the lower mould floating plate (1) through the side wall of the lower mould floating plate (1); an air outlet end of the first air pipe (3) is located on the top surface of the lower mould floating plate (1) and is located near the edge of the lower mould floating plate (1).

3. A continuous bending die according to claim 2, characterized in that: The second pneumatic part comprises a second air pump (4) located on two sides of the lower die floating plate (1); a second air pipe (5) is provided at the output end of the second air pump (4); the second air pipe (5) enters the lower die floating plate (1) through the side wall of the lower die floating plate (1); an air outlet end of the second air pipe (5) is located on the top surface of the lower die floating plate (1) and near the middle of the lower die floating plate (1); and an air outlet direction of the second air pipe (5) is perpendicular to the bottom of the sheet (13).

4. A continuous bending die according to claim 2, characterized in that: A first air outlet (6) is provided at the top of the lower mould floating plate (1); an air outlet end of the first air pipe (3) is located in the first air outlet (6); a cover plate (7) is rotatably provided in the first air outlet (6); two cover plates (7) are provided and are respectively located on both sides of the first air outlet (6); a rotation axis of the cover plate (7) is parallel to the top surface of the lower mould floating plate (1); the first air pipe (3) is located directly below the cover plate (7); when the cover plate (7) closes the first air outlet (6), the cover plate (7) is flush with the lower mould floating plate (1).

5. A continuous bending die according to claim 4, characterized in that: A gap is left between the two cover plates (7).

6. A continuous bending die according to claim 4, characterized in that: A hinge shaft (8) is rotatably arranged on the lower mold floating plate (1) and located in the first air outlet hole (6); the cover plate (7) is fixedly arranged on the hinge shaft (8); a torsion spring (9) is sleeved on the hinge shaft (8); one side of the torsion spring (9) is fixedly arranged on the side wall of the first air outlet hole (6), and the other side is fixedly arranged on the hinge shaft (8).

7. A continuous bending die according to claim 3, characterized in that: A rubber tube (10) is fixedly arranged on the side of the lower die floating plate (1), one side of the rubber tube (10) is embedded in the lower die floating plate (1), and the other side is located outside the lower die floating plate (1), and the first air tube (3) and the second air tube (5) are embedded in the rubber tube (10).

8. The continuous bending die according to claim 3, characterized in that: A receiving plate (11) is embedded on the lower mold floating plate (1) and in the second air outlet hole, and a plurality of air holes (12) are opened on the receiving plate (11), and the air holes (12) are evenly distributed on the receiving plate (11).

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