Die system with double stripper plates

Abstract

The utility model provides a die system with double stripper plates, which comprises an upper die holder and a lower die holder, a first upper die block and a second upper die block are fixedly arranged at the bottom of the upper die holder, a pre-punching upper die is arranged on the first upper die block, a forming upper die and a fine shearing upper die are arranged on the second upper die block, and a first lower die block and a second lower die block which correspond to each other in position are arranged at the top of the lower die holder. The first lower module is provided with a pre-punching lower die and a fine shearing lower die which correspond to the pre-punching upper die and the fine shearing upper die respectively, the second lower module is provided with a forming lower die corresponding to the forming upper die, the first lower module is fixed to a lower die base, and the lower die base is further movably provided with a lower material returning plate and an upper material returning plate located above the lower material returning plate. The upper material returning plate corresponds to the second upper die block in position and is used for clamping materials, the blank holder force of the upper material returning plate is smaller than that of the upper material returning plate, and the second lower die block is arranged on the lower material returning plate. By means of one-time punching work, pre-punching, forming and fine shearing processes can be continuously achieved, and machining efficiency is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of forming die especially relates to a double material withdrawal plate die system. BACKGROUND

[0002] Punching process refers to the outside force that is exerted to plate material, strip material, pipe material and profiled material etc. by press and die, makes it produce plastic deformation or separation, thereby obtains the forming processing method of the workpiece (punched part) of required shape and size. Its basic principle is to exert pressure or tension to the plate material through the die, makes it plastic forming, or exerts shearing force to the plate material, makes the plate material separate, thereby obtains the part of certain size, shape and performance.

[0003] The single set of die of the current punching device can only realize single effect in punching, shearing, forming process, needs to carry out multiple punching work or needs to replace different punching die for the product needing multiple punching effect processing, and the processing efficiency is low. CONTENT OF THE UTILITY MODEL

[0004] In view of the deficiencies in the prior art, the utility model provides a double material withdrawal plate die system, realizes pre-punching, forming, fine shearing process quickly and continuously, and improves processing efficiency.

[0005] According to the embodiment of the utility model, a double material withdrawal plate die system, including upper die seat, lower die seat, the first upper module, second upper module are fixedly arranged on the bottom of upper die seat, the pre-punching upper die is arranged on the first upper module, the forming upper die, fine shearing upper die are arranged on the second upper module, the first lower module, second lower module corresponding in position are arranged on the top of lower die seat, the pre-punching lower die, fine shearing lower die corresponding to the pre-punching upper die, the fine shearing upper die respectively are arranged on the first lower module, the forming lower die corresponding to the forming upper die is arranged on the second lower module, the first lower module is fixed on the lower die seat, the lower material withdrawal plate is movably arranged on the lower die seat, and the upper material withdrawal plate is located above the lower material withdrawal plate, the upper material withdrawal plate is corresponding in position with the second upper module and is used for clamping material, the edge pressure of the upper material withdrawal plate is less than the lower material withdrawal plate, and the second lower module is arranged on the lower material withdrawal plate.

[0006] Preferably, the second upper module is arranged around the first upper module, and the second lower module is arranged around the first lower module.

[0007] Further preferably, the pre-punching upper die is a pre-punching punch arranged on the bottom surface of the first upper module, and the pre-punching lower die is a pre-punching recess arranged on the top surface of the first lower module.

[0008] Further preferably, the forming upper die is a forming female die arranged at a side edge of the second upper die block close to the first upper die block, the forming upper die surrounds the first upper die block, and the pre-punching male die has a die bottom surface higher than a bottom surface of the second upper die block.

[0009] Further preferably, an inner edge of the second upper die block is the trimming upper die, an outer edge of the first lower die block is the trimming lower die, and the first lower die block intermittently cooperates with the second upper die block with a cooperation gap of zero.

[0010] Further preferably, the lower stripper plate is an annular structure surrounding the second lower die block, and the lower stripper plate is detachably connected with the lower die seat through a plurality of second elastic members.

[0011] Still further preferably, the upper stripper plate is an annular structure surrounding the first lower die block, a bottom of the upper stripper plate is fixedly connected with a plurality of guide rods penetrating through the lower stripper plate, and the guide rods are detachably connected with the lower die seat through first elastic members.

[0012] Compared with the prior art, the utility model has the following beneficial effects:

[0013] The pre-punching upper die, the forming upper die and the trimming upper die are driven by the upper die seat, the pre-punching lower die and the trimming lower die are fixedly arranged on the fixed lower die seat, and the upper stripper plate and the lower stripper plate with different edge pressure are arranged, the forming lower die is arranged on the lower stripper plate, and the pre-punching, the forming and the trimming are sequentially completed in the process that the upper die seat moves downward, so that the stamping processing efficiency can be effectively improved. BRIEF DESCRIPTION OF DRAWINGS

[0014] Figure 1 It is a front view schematic diagram of a double-stripper-plate die system of the utility model.

[0015] Figure 2 It is a front view schematic diagram of a double-stripper-plate die system of the utility model. Figure 1 It is an enlarged structure schematic diagram of a local part A of the utility model.

[0016] In the above drawings: 1, upper die seat; 2, lower die seat; 3, first upper die block; 301, pre-punching upper die; 4, second upper die block; 401, forming upper die; 402, trimming upper die; 5, first lower die block; 501, pre-punching lower die; 502, trimming lower die; 6, second lower die block; 601, forming lower die; 7, upper stripper plate; 701, guide rod; 702, first elastic member; 8, lower stripper plate; 801, second elastic member. DETAILED DESCRIPTION

[0017] The technical scheme in the utility model will be further described below in combination with the drawings and embodiments.

[0018] The utility model provides a kind of embodiment, as shown in Figure 1 、 Figure 2 A kind of double material withdrawal plate mould system, including upper die holder 1, lower die holder 2, the bottom of the upper die holder 1 is detachably connected with first mounting seat, first mounting seat is fixedly connected with first upper module 3, second upper module 4 on it, the first upper module 3 is equipped with pre-punching upper die 301 on it, the second upper module 4 is equipped with forming upper die 401, fine shearing upper die 402 on it, the top of the lower die holder 2 is equipped with the first lower module 5, second lower module 6 of position correspondence, the first lower module 5 is equipped with pre-punching lower die 501, fine shearing lower die 502 respectively corresponding the pre-punching upper die 301, the fine shearing upper die 402 on it, the second lower module 6 is equipped with forming lower die 601 corresponding the forming upper die 401 on it, the first lower module 5 is fixed on the lower die holder 2, the lower die holder 2 is also movably equipped with lower material withdrawal plate 8, upper material withdrawal plate 7 located above the lower material withdrawal plate 8, the upper material withdrawal plate 7 is positionally corresponding with the second upper module 4 and is used for clamping material, the edge pressure of the upper material withdrawal plate 7 is less than the lower material withdrawal plate 8, and the second lower module 6 is arranged on the lower material withdrawal plate 8;

[0019] When pre-punching upper die 301, forming upper die 401, fine shearing upper die 402 are moved towards lower die holder 2 by upper die holder 1, the second upper module 4 clamps material with upper material withdrawal plate 7, pre-punching upper die 301 is first matched with pre-punching lower die 501 to complete pre-punching work, upper die holder 1 continues to move downwards, forming upper die 401 and forming lower die 601 carry out forming work, the second upper module 4 pushes upper material withdrawal plate 7 to move downwards and contact with lower material withdrawal plate 8, to complete forming work, upper die holder 1 continues to move downwards, fine shearing upper die 402 and fine shearing lower die 502 carry out fine shearing work, and the second upper module 4 pushes upper material withdrawal plate 7 and lower material withdrawal plate 8 to move downwards to complete fine shearing work;

[0020] Specifically, the second upper module 4 is arranged around the first upper module 3, the second lower module 6 is arranged around the first lower module 5, the pre-punching upper die 301 is a pre-punching punch arranged on the bottom surface of the first upper module 3, and the pre-punching lower die 501 is a pre-punching recess arranged on the top surface of the first lower module 5.

[0021] Specifically, the forming upper die 401 is a forming recess arranged on one side edge of the second upper module 4 close to the first upper module 3, the forming upper die 401 is arranged around the first upper module 3, and the forming lower die 601 is a forming punch arranged on the top of the second lower module 6.

[0022] Specifically, the inner edge of the second upper module 4 is the fine trimming upper die 402, the outer edge of the first lower module 5 is the fine trimming lower die 502, the first lower module 5 is intermittently matched with the second upper module 4 and the matching gap is zero;

[0023] As shown in Figure 2 The lower stripper plate 8 is an annular structure arranged around the second lower module 6, and the lower stripper plate 8 is detachably connected with the lower die seat 2 through a plurality of second elastic members 801, the lower die seat 2 is provided with a guide hole, the second elastic member 801 comprises a guide column fixedly connected with the lower stripper plate 8, the guide column extends into the guide hole and is connected with the guide hole through a spring;

[0024] The upper stripper plate 7 is an annular structure arranged around the first lower module 5, and the bottom of the upper stripper plate 7 is fixedly connected with a plurality of guide rods 701 penetrating through the lower stripper plate 8, the guide rod 701 is detachably connected with the lower die seat 2 through a first elastic member 702, the lower die seat 2 is provided with a guide hole, the first elastic member 702 comprises a guide column coaxially fixedly connected with the guide rod 701, the guide column extends into the guide hole and is connected with the guide hole through a spring.

[0025] Finally, it should be pointed out that the above embodiments are only used to illustrate the technical solutions of the present application and are not limiting. Although the present application has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that the technical solutions of the present application can be modified or replaced equivalently without departing from the purpose and scope of the present application, and all of them should be covered in the scope of the claims of the present application.

Claims

1. A double stripper plate die system comprising an upper die shoe (1), a lower die shoe (2), characterized in that, The upper die base (1) is fixedly provided with a first upper die block (3) and a second upper die block (4), the first upper die block (3) is provided with a pre-punching upper die (301), the second upper die block (4) is provided with a forming upper die (401) and a trimming upper die (402), the lower die base (2) is provided with a first lower die block (5) and a second lower die block (6) corresponding in position, the first lower die block (5) is provided with a pre-punching lower die (501) and a trimming lower die (502) corresponding to the pre-punching upper die (301) and the trimming upper die (402) respectively, the second lower die block (6) is provided with a forming lower die (601) corresponding to the forming upper die (401), the first lower die block (5) is fixed on the lower die base (2), the lower die base (2) is further movably provided with a lower stripper plate (8) and an upper stripper plate (7) located above the lower stripper plate (8), the upper stripper plate (7) corresponds to the second upper die block (4) in position and is used for clamping materials, the edge pressure of the upper stripper plate (7) is smaller than that of the lower stripper plate (8), and the second lower die block (6) is arranged on the lower stripper plate (8).

2. A dual stripper plate die system as claimed in claim 1 wherein, The second upper die block (4) is arranged around the first upper die block (3), and the second lower die block (6) is arranged around the first lower die block (5).

3. A dual stripper plate die system as defined in claim 2 wherein, The pre-punching upper die (301) is a pre-punching male die arranged on the bottom surface of the first upper die block (3), and the pre-punching lower die (501) is a pre-punching female die arranged on the top surface of the first lower die block (5).

4. The dual stripper plate die system of claim 3, wherein, The forming upper die (401) is a forming female die arranged on one side edge of the second upper die block (4) close to the first upper die block (3), the forming upper die (401) is arranged around the first upper die block (3), the forming lower die (601) is a forming male die arranged on the top of the second lower die block (6), and the bottom surface of the pre-punching male die is higher than the bottom surface of the second upper die block (4).

5. A dual stripper plate die system as claimed in claim 4 wherein, The inner edge of the second upper die block (4) is the trimming upper die (402), the outer edge of the first lower die block (5) is the trimming lower die (502), and the first lower die block (5) is intermittently matched with the second upper die block (4) with a matching gap of zero.

6. A dual stripper plate die system as claimed in any one of claims 1 to 5 wherein, The lower stripper plate (8) is of an annular structure arranged around the second lower die block (6), and the lower stripper plate (8) is detachably connected with the lower die base (2) through a plurality of second elastic members (801).

7. A dual stripper plate die system as defined in claim 6 wherein, The upper stripper plate (7) is of an annular structure arranged around the first lower die block (5), and the bottom of the upper stripper plate (7) is fixedly connected with a plurality of guide rods (701) penetrating through the lower stripper plate (8), and the guide rods (701) are detachably connected with the lower die base (2) through first elastic members (702).

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