Up-down bending die

Abstract

The utility model relates to the technical field of stamping dies, in particular to an up-down bending die which comprises an upper die base and a lower die base, the lower end of the upper die base is connected with an upper die nitrogen spring, the lower end of the upper die nitrogen spring is connected with an upper die stripper plate, and the lower end of the upper die base is fixedly provided with an upper die bending punch on one side of the upper die stripper plate. The upper end of the lower die base is connected with a lower die nitrogen spring, the upper end of the lower die nitrogen spring is connected with a lower die stripper plate, the lower die stripper plate and the upper die stripper plate are oppositely arranged, and a lower die bending punch is fixed to the position, on one side of the lower die stripper plate, of the upper end of the lower die base. Compared with the prior art, the nitrogen springs are arranged on the upper sides and the lower sides of the stripper plates of the upper die and the lower die, and the bending punches are arranged on the two sides of the stripper plates, so that simultaneous bending of the upper die and the lower die in one set of die is realized, and procedures and equipment are saved.

Description

Technical Field

[0001] The utility model relates to the technical field of stamping dies, in particular to a die which is bent up and down. Background Art

[0002] Traditional mold bending generally requires bending upwards first and then downwards, or bending downwards first and then upwards. If it is a single punch die, an additional set of molds is required, and a continuous die also requires an additional step. When encountering special products, adding a step to the continuous die will cause the punch press table to not fit. Summary of the invention

[0003] The utility model provides a mold for bending up and down to overcome the shortcomings of the prior art.

[0004] In order to achieve the above-mentioned purpose, a mold for upper and lower bending is designed, including an upper mold base and a lower mold base, the lower end of the upper mold base is connected to the upper mold nitrogen spring, the lower end of the upper mold nitrogen spring is connected to the upper mold stripper plate, the lower end of the upper mold base is fixed with an upper mold bending punch on one side of the upper mold stripper plate, the upper end of the lower mold base is connected to the lower mold nitrogen spring, the upper end of the lower mold nitrogen spring is connected to the lower mold stripper plate, the lower mold stripper plate is arranged opposite to the upper mold stripper plate, and the upper end of the lower mold base is fixed with a lower mold bending punch on one side of the lower mold stripper plate.

[0005] The upper die bending punch and the lower die bending punch are relatively arranged on both sides of the die, and a knife seat is fixed on the lower die seat on the opposite side of the lower die bending punch, and the knife seat supports the outer side of the upper die bending punch when the die is closed.

[0006] A knife insert is fixed on one side of the knife support seat, and the knife insert contacts with the upper die bending punch to support the upper die bending punch.

[0007] A square key is arranged between the knife support and the lower die support.

[0008] The lower end of the upper die seat is connected to an upper pad, the upper outer side of the upper die nitrogen spring is sleeved in the opening of the upper pad, the upper end of the lower die seat is connected to a lower pad, and the lower outer side of the lower die nitrogen spring is sleeved in the opening of the lower pad.

[0009] The upper end of the lower mold stripping plate is connected with a positioning pin, and a space is provided below the upper mold stripping plate to avoid the positioning pin.

[0010] Notches are provided at the lower part of the upper die bending punch close to the upper die stripping plate and at the upper part of the lower die bending punch close to the lower die stripping plate.

[0011] The lower end of the upper die seat is connected to an upper die fixing seat, which is fixedly connected to the upper die bending punch; the upper end of the lower die seat is connected to a lower die fixing seat, which is fixedly connected to the lower die bending punch; square keys are provided between the upper die fixing seat and the upper die seat and between the lower die fixing seat and the lower die seat.

[0012] Compared with the prior art, the utility model realizes simultaneous bending in a set of dies by arranging nitrogen springs on the upper and lower sides of the upper and lower die stripping plates and arranging bending punches on both sides of the stripping plates, thereby saving processes and equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 This is a closed mold state diagram of the utility model.

[0014] Figure 2 This is a mold opening state diagram of the utility model.

[0015] See also Figure 1-Figure 2 , among which, 1 is the upper die seat, 2 is the square key, 3 is the upper die fixed seat, 4 is the knife seat, 5 is the lower die seat, 6 is the knife insert, 7 is the upper die bending punch, 8 is the positioning pin, 9 is the lower die stripper plate, 10 is the lower pad, 11 is the material, 12 is the lower die nitrogen spring, 13 is the upper die nitrogen spring, 14 is the upper pad, 15 is the upper die stripper plate, 16 is the lower die bending punch, and 17 is the lower die fixed seat. DETAILED DESCRIPTION

[0016] The utility model is further described below with reference to the accompanying drawings.

[0017] like Figure 1-Figure 2 As shown, the lower end of the upper die base 1 is connected to the upper die nitrogen spring 13, the lower end of the upper die nitrogen spring 13 is connected to the upper die stripper plate 15, the lower end of the upper die base 1 is fixed with the upper die bending punch 7 on one side of the upper die stripper plate 15, the upper end of the lower die base 5 is connected to the lower die nitrogen spring 12, the upper end of the lower die nitrogen spring 12 is connected to the lower die stripper plate 9, the lower die stripper plate 9 is arranged opposite to the upper die stripper plate 15, and the upper end of the lower die base 5 is fixed with the lower die bending punch 16 on one side of the lower die stripper plate 9.

[0018] The upper die bending punch 7 and the lower die bending punch 16 are arranged on both sides of the die relatively, and the lower die holder 5 is fixed with a knife seat 4 on the opposite side of the lower die bending punch 16, and the knife seat 4 supports the outer side of the upper die bending punch 7 when the die is closed.

[0019] A knife insert 6 is fixed to one side of the knife support 4 , and the knife insert 6 contacts with the upper die bending punch 7 to support the upper die bending punch 7 .

[0020] A square key 2 is provided between the knife seat 4 and the lower die seat 5 .

[0021] The lower end of the upper die seat 1 is connected to an upper pad 14, and the upper outer side of the upper die nitrogen spring 13 is sleeved in the opening of the upper pad 14. The upper end of the lower die seat 5 is connected to a lower pad 10, and the lower outer side of the lower die nitrogen spring 12 is sleeved in the opening of the lower pad 10.

[0022] The upper end of the lower mold stripper plate 9 is connected with a positioning pin 8 , and a space for avoiding the positioning pin 8 is provided below the upper mold stripper plate 15 .

[0023] A notch is provided at the lower part of the upper die bending punch 7 close to the upper die stripper plate 15 and at the upper part of the lower die bending punch 16 close to the lower die stripper plate 9 .

[0024] The lower end of the upper die base 1 is connected to the upper die fixing base 3, and the upper die fixing base 3 is fixedly connected to the upper die bending punch 7. The upper end of the lower die base 5 is connected to the lower die fixing base 17, and the lower die fixing base 17 is fixedly connected to the lower die bending punch 16. Square keys are provided between the upper die fixing base 3 and the upper die base 1 and between the lower die fixing base 17 and the lower die base 5.

[0025] When the utility model is used, the material 11 is first placed on the lower die stripper plate 9 and positioned by the positioning pin 8, and then the upper die seat 1 is pressed down, and the upper die stripper plate 15 presses the material 11 and the lower die stripper plate 9. Then the upper die seat 1 continues to move downward, the upper die nitrogen spring 13 and the lower die nitrogen spring 12 are compressed, the upper die bending punch 7 continues to move downward, and cooperates with the lower die stripper plate 9 to bend one side of the material 11 downward, the upper die stripper plate 15 continues to press downward, the material 11 moves downward, and cooperates with the lower die bending punch 16 to bend the other side of the material 11 upward.

[0026] When bending, the upper die bending punch 7 and the lower die bending punch 16 extrude the material 11 to generate a lateral thrust. The knife seat 4 supports the outer side of the upper die bending punch 7 through the knife insert 6 when the upper die seat 1 descends, making the bending forming more stable. The knife insert 6 can be made of wear-resistant material to extend the life of the mold.

[0027] The upper die seat 1 and the lower die seat 5 are respectively fixedly connected with the upper die fixing seat 3, the lower die fixing seat 17 and the knife seat 4 through the square key 2, which can effectively prevent the upper die fixing seat 3, the lower die fixing seat 17 and the knife seat 4 from rotating and loosening. When the upper die bending punch 7 and the lower die bending punch 16 are respectively close to the upper die stripping plate 15 and the lower die stripping plate 9, the material 11 can be pressed into the notch set on one side of the punch for bending.

Claims

1. A mold for bending up and down, comprising an upper mold base and a lower mold base, characterized in that: The lower end of the upper die seat (1) is connected to the upper die nitrogen spring (13), the lower end of the upper die nitrogen spring (13) is connected to the upper die stripping plate (15), the lower end of the upper die seat (1) is fixed with an upper die bending punch (7) on one side of the upper die stripping plate (15), the upper end of the lower die seat (5) is connected to the lower die nitrogen spring (12), the upper end of the lower die nitrogen spring (12) is connected to the lower die stripping plate (9), the lower die stripping plate (9) is arranged opposite to the upper die stripping plate (15), and the upper end of the lower die seat (5) is fixed with a lower die bending punch (16) on one side of the lower die stripping plate (9).

2. The mold for bending up and down according to claim 1, characterized in that: The upper die bending punch (7) and the lower die bending punch (16) are arranged on opposite sides of the die, and the lower die seat (5) is fixed with a knife seat (4) on the opposite side of the lower die bending punch (16), and the knife seat (4) supports the outer side of the upper die bending punch (7) when the die is closed.

3. The mold for bending up and down according to claim 2, characterized in that: A knife insert (6) is fixed on one side of the knife support seat (4), and the knife insert (6) contacts the upper die bending punch (7) to support the upper die bending punch (7).

4. The mold for bending up and down according to claim 2, characterized in that: A square key (2) is provided between the knife seat (4) and the lower die seat (5).

5. The mold for bending up and down according to claim 1, characterized in that: The lower end of the upper die seat (1) is connected to an upper pad (14), the upper outer side of the upper die nitrogen spring (13) is sleeved in the opening of the upper pad (14), the upper end of the lower die seat (5) is connected to a lower pad (10), and the lower outer side of the lower die nitrogen spring (12) is sleeved in the opening of the lower pad (10).

6. The mold for bending up and down according to claim 1, characterized in that: The upper end of the lower die stripping plate (9) is connected to a positioning pin (8), and a space for avoiding the positioning pin (8) is provided below the upper die stripping plate (15).

7. The mold for bending up and down according to claim 1, characterized in that: A notch is provided at the lower part of the upper die bending punch (7) close to the upper die stripping plate (15) and at the upper part of the lower die bending punch (16) close to the lower die stripping plate (9).

8. The mold for bending up and down according to claim 1, characterized in that: The lower end of the upper die seat (1) is connected to an upper die fixing seat (3), the upper die fixing seat (3) is fixedly connected to an upper die bending punch (7), the upper end of the lower die seat (5) is connected to a lower die fixing seat (17), the lower die fixing seat (17) is fixedly connected to a lower die bending punch (16), and a square key (2) is provided between the upper die fixing seat (3) and the upper die seat (1) and between the lower die fixing seat (17) and the lower die seat (5).

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