Die limiting stripping structure

Abstract

The utility model discloses a die limiting and stripping structure, belongs to the field of dies, and solves the problem that in the prior art, stamping die material sheets are easily accumulated in a punch and a cavity, and the continuity of stamping operation is affected. According to the device, an upper bottom plate and a lower bottom plate are arranged in parallel in a spaced mode, a die core assembly is arranged between the upper bottom plate and the lower bottom plate, and the die core assembly comprises a trimming punch and a trimming female die; the trimming punch and the trimming female die are fixed to the upper bottom plate and the lower bottom plate respectively, and the trimming punch and the trimming female die are arranged in a matched mode. A first pushing mechanism moving relative to the trimming punch is arranged on the trimming punch. According to the die limiting stripping structure, automatic stripping and jacking can be achieved, and continuous punching operation is facilitated.

Description

Technical Field

[0001] The utility model relates to a mold limiting stripping structure and belongs to the field of molds. Background Art

[0002] Stamping is a forming method that uses a press and a die to apply external force to plates, strips, tubes and profiles to cause plastic deformation or separation, thereby obtaining a workpiece (stamping part) of the required shape and size. The die used for stamping is called a stamping die, or simply a die. A stamping die is a special die that processes materials (metal or non-metal) into the required stamping parts in batches. In a stamping die, the die and the punch are used to form a plate-shaped profile that meets the size requirements.

[0003] In the existing die, if the cavity of the die is deep, it is difficult to remove the profile after the punch punches it into the cavity of the die. And when a large amount of profile is accumulated in the cavity, it is difficult for the punch to effectively punch into the cavity of the die, affecting the continuous operation of the stamping. After the punch punches the profile into the cavity of the die, the excess material may be wrapped around the punch, which will also affect the continuous operation of the stamping. Utility Model Content

[0004] The utility model provides a mold limiting stripping structure, which can realize automatic stripping and pushing of materials and facilitate continuous stamping operation.

[0005] The technical solution adopted by the utility model is a mold limiting stripping structure, comprising an upper bottom plate and a lower bottom plate that move relatively, the upper bottom plate and the lower bottom plate are arranged in parallel and spaced apart, and a mold core component is arranged between the upper bottom plate and the lower bottom plate.

[0006] The core assembly includes a trimming punch and a trimming die; the trimming punch and the trimming die are respectively fixed to the upper base plate and the lower base plate, and the trimming punch and the trimming die are arranged in cooperation;

[0007] The trimming punch is provided with a pushing mechanism 1 which moves relative to the trimming punch.

[0008] Optimized, the above-mentioned mold limiting stripping structure has a punch fixing plate between the trimming punch and the upper base plate, and the trimming punch is fixedly connected to the upper base plate through the punch fixing plate.

[0009] Optimized, the above-mentioned mold limiting stripping structure has a trimming pad between the trimming cavity and the lower bottom plate, and the trimming cavity is fixedly connected to the lower bottom plate through the trimming pad.

[0010] Optimized, the above-mentioned mold limiting stripping structure, the push mechanism includes a stripping plate, the stripping plate is arranged parallel to the upper bottom plate and spaced apart, the trimming punch passes through the stripping plate and slides relative to the stripping plate;

[0011] A push rod and a spring are provided between the stripping plate and the upper bottom plate; one end of the push rod is fixed to the stripping plate, and the other end of the push rod passes through the upper bottom plate and slides relative to the upper bottom plate; the spring is sleeved on the push rod and the two ends are respectively in tight contact with the stripping plate and the upper bottom plate.

[0012] Optimized, the above-mentioned mold limiting stripping structure, the trimming concave mold has a cavity arranged in cooperation with the trimming punch, and a second pusher mechanism is arranged in the cavity;

[0013] The second material pushing mechanism comprises a supporting plate, which is located in the cavity and is arranged in a shape matching with the lower end surface of the trimming punch;

[0014] A plurality of springs are arranged between the supporting plate and the inner bottom end surface of the cavity.

[0015] Optimally, in the above-mentioned mold limiting stripping structure, a plurality of trimming punches are installed on the upper bottom plate, and the cavity of the trimming die is matched with the trimming punches.

[0016] Optimized, the above-mentioned mold limiting stripping structure has a groove on the upper surface of the trimming die, a core is fixedly arranged in the groove, and the side surface of the core and the inner wall of the groove of the trimming die are spaced apart to form a cavity of the trimming die.

[0017] Optimally, the above-mentioned mold limiting stripping structure has a trapezoidal groove constructed on the upper surface of the core.

[0018] Optimized, the above-mentioned mold limiting stripping structure has an upper boss 1 on the upper surface of the trimming die, and a lower boss 2 is constructed on the lower surface of the stripping plate, and the upper boss 1 and the lower boss 2 are arranged in relative cooperation.

[0019] The advantages of this application are:

[0020] In the technical solution of the present application, a pusher mechanism 1 and a pusher mechanism 2 are constructed. The pusher mechanism 1 pushes downward from the top to push down the sheet on the trimming punch after stamping, and pushes the sheet on the trimming punch and then falls. The pusher mechanism pushes upward from the bottom to push up or push out the sheet punched into the trimming die by the trimming punch to avoid the accumulation of the sheet in the cavity of the trimming die. The accumulation of the sheet is avoided by the pusher mechanism 1 and the pusher mechanism 2, and the continuous operation of the stamping operation is guaranteed to a certain extent. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 This is a schematic diagram of the structure of this application;

[0022] Figure 2 The internal structure of this application is shown in FIG. Figure 1 ;

[0023] Figure 3 The internal structure of this application is shown in FIG. Figure 2;

[0024] Figure 4 This is a schematic structural diagram of the trimming die of the present application;

[0025] Figure 5 This is a schematic diagram of the structure of the core of the present application;

[0026] Figure 6 This is a schematic diagram of the structure of the support plate of the present application;

[0027] Figure 7 This is a schematic diagram of the structure of the stripping plate of the present application;

[0028] Figure 8 This is a schematic diagram of the structure of the punch fixing plate of the present application;

[0029] Fig. 9 This is a schematic diagram of the structure of the trimming punch of the present application. DETAILED DESCRIPTION

[0030] The technical features of the present invention are further described below in conjunction with the accompanying drawings and specific embodiments.

[0031] As shown in the figure, the utility model is a mold limiting stripping structure, comprising an upper bottom plate 1 and a lower bottom plate 2 that move relatively, and the upper bottom plate 1 and the lower bottom plate 2 are arranged in parallel and spaced apart. There is a mold core assembly between the upper bottom plate 1 and the lower bottom plate 2, and the mold core assembly includes a trimming punch 3 and a trimming die 4.

[0032] A punch fixing plate 5 is provided between the trimming punch 3 and the upper base plate 1, and the trimming punch 3 is fixedly connected to the upper base plate 1 through the punch fixing plate 5. A trimming pad 6 is provided between the trimming die 4 and the lower base plate 2, and the trimming die 4 is fixedly connected to the lower base plate 2 through the trimming pad 6.

[0033] Specifically, the trimming punch 3 is fixed to the lower surface of the punch fixing plate 5 by bolt connection or welding. The punch fixing plate 5 is connected with a plurality of fixing bolts. The fixing bolts pass through the punch fixing plate 5 and are threadedly connected to the upper base plate 1, thereby fixing the punch fixing plate 5 to the upper base plate 1.

[0034] The trimming die 4 has a plurality of fixing bolts therein. After passing through the trimming die 4 and the trimming pad 6 , the fixing bolts are threadedly connected to the lower base plate 2 , thereby fixing the trimming die 4 and the trimming pad 6 on the lower base plate 2 .

[0035] The trimming punch 3 is provided with a material pushing mechanism 1 which moves relative to the trimming punch 3. The trimming die 4 has a cavity which is matched with the trimming punch 3, and a material pushing mechanism 2 is provided in the cavity.

[0036] Among them, the push mechanism 1 includes a stripper plate 7, which is arranged parallel to the upper bottom plate 1 and spaced apart, and the trimming punch 3 passes through the stripper plate 7 and slides relative to the stripper plate 7. A push rod 8 and a spring 9 are provided between the stripper plate 7 and the upper bottom plate 1, one end of the push rod 8 is fixed to the stripper plate 7, and the other end of the push rod 8 passes through the upper bottom plate 1 and slides relative to the upper bottom plate 1, and the spring 9 is sleeved on the push rod 8 and the two ends are respectively pressed and contacted with the stripper plate 7 and the upper bottom plate 1.

[0037] The structure of the stripper plate 7 is shown in the figure, and a through hole is constructed on the stripper plate 7 for the trimming punch 3 to pass through. The end surface of the push rod 8 is constructed with an external thread, and a threaded hole matching the push rod 8 is constructed on the stripper plate 7, and the external thread at the end of the push rod 8 is threadedly connected with the threaded hole on the stripper plate 7.

[0038] The upper surface of the trimming die 4 has a groove, in which a core 12 is fixedly disposed, and a side surface of the core 12 is spaced from an inner wall of the groove of the trimming die 4 to form a cavity of the trimming die 4 .

[0039] The second pusher mechanism includes a support plate 10, which is located in the cavity and is matched with the shape of the lower end surface of the trimming punch 3. The shape of the support plate 10 is matched with the shape of the cavity, and the support plate 10 slides longitudinally in the cavity, and the side surface of the support plate 10 is in sliding contact with the inner wall of the cavity.

[0040] After the core 12 is placed, its upper surface is in the same plane as the upper surface of the trimming die 4. The upper surface of the support plate 10 is lower than the upper surface of the trimming die 4 and is located in the cavity. There are a number of springs 11 between the support plate 10 and the inner bottom end surface of the cavity. The support of the springs 11 makes the support plate 10 lower than the upper surface of the trimming die 4 in its own state. During stamping, the support plate 10 is lowered and the springs 11 are compressed. After the stamping is completed, the springs 11 elastically recover and push the support plate 10 upward, and then the support plate 10 pushes the sheet in the cavity upward. Under the action of inertia, the sheet in the cavity is pushed out of the cavity.

[0041] A plurality of trimming punches 3 are mounted on the upper base plate 1, and the cavity of the trimming die 4 is arranged in cooperation with the trimming punches 3. In this embodiment, two trimming punches 3 can be arranged, and two cavities are arranged on the upper surface of the trimming die 4, and the trimming punches 3 punch into the cavities during stamping.

[0042] A trapezoidal groove is constructed on the upper surface of the core 12. The upper surface of the trimming die 4 has an upper boss 1 401, and the lower surface of the stripper plate 7 has a lower boss 2 701, and the upper boss 1 401 and the lower boss 2 701 are arranged in a relative matching manner.

[0043] Of course, the above description is not a limitation of the present invention, and the present invention is not limited to the above examples. Any changes, modifications, additions or substitutions made by ordinary technicians in this technical field within the essential scope of the present invention should fall within the protection scope of the present invention.

Claims

1. A mold limiting stripping structure, comprising an upper base plate (1) and a lower base plate (2) that move relative to each other, the upper base plate (1) and the lower base plate (2) being arranged in parallel and spaced apart, and a mold core assembly being provided between the upper base plate (1) and the lower base plate (2), characterized in that: The core mold assembly comprises a trimming punch (3) and a trimming die (4); the trimming punch (3) and the trimming die (4) are respectively fixed on the upper base plate (1) and the lower base plate (2), and the trimming punch (3) and the trimming die (4) are arranged in coordination; The trimming punch (3) is provided with a material pushing mechanism 1 which moves relative to the trimming punch (3).

2. The mold limiting stripping structure according to claim 1 is characterized in that: A punch fixing plate (5) is provided between the trimming punch (3) and the upper base plate (1), and the trimming punch (3) is fixedly connected to the upper base plate (1) via the punch fixing plate (5).

3. The mold limiting stripping structure according to claim 1 is characterized in that: A trimming pad (6) is provided between the trimming die (4) and the lower base plate (2), and the trimming die (4) is fixedly connected to the lower base plate (2) via the trimming pad (6).

4. The mold limiting stripping structure according to claim 1 is characterized in that: The first material pushing mechanism comprises a stripping plate (7), the stripping plate (7) is arranged parallel to and spaced from the upper base plate (1), and the trimming punch (3) passes through the stripping plate (7) and slides relative to the stripping plate (7); A push rod (8) and a spring (9) are provided between the stripping plate (7) and the upper bottom plate (1); one end of the push rod (8) is fixed to the stripping plate (7), and the other end of the push rod (8) passes through the upper bottom plate (1) and slides relative to the upper bottom plate (1); the spring (9) is sleeved on the push rod (8) and its two ends are respectively in tight contact with the stripping plate (7) and the upper bottom plate (1).

5. The mold limiting stripping structure according to claim 1 is characterized in that: The trimming die (4) has a cavity that cooperates with the trimming punch (3), and a second material pushing mechanism is arranged in the cavity; The second material pushing mechanism comprises a supporting plate (10), which is located in the mold cavity and is arranged in a shape matching the lower end surface of the trimming punch (3); A plurality of springs (11) are provided between the supporting plate (10) and the inner bottom end surface of the cavity.

6. The mold limiting stripping structure according to claim 1, characterized in that: A plurality of trimming punches (3) are installed on the upper base plate (1), and the cavity of the trimming die (4) is arranged in cooperation with the trimming punches (3).

7. The mold limiting stripping structure according to claim 1 is characterized in that: The upper surface of the trimming die (4) has a groove, in which a core (12) is fixedly arranged, and a side surface of the core (12) and an inner wall of the groove of the trimming die (4) are spaced apart to form a cavity of the trimming die (4).

8. The mold limiting stripping structure according to claim 7, characterized in that: The upper surface of the core (12) is constructed with a trapezoidal groove.

9. The mold limiting stripping structure according to claim 4, characterized in that: The upper surface of the trimming die (4) has an upper boss 1 (401), and the lower surface of the stripping plate (7) is constructed with a lower boss 2 (701). The upper boss 1 (401) and the lower boss 2 (701) are arranged in a relatively matched manner.

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