Anti-adhesion punching die

Abstract

The utility model discloses an anti-adhesion punching die which comprises an upper die base and a lower die base, a plurality of punches, an upper layer pressing plate, an upper layer top plate located below the upper layer pressing plate and an upper layer die frame located below the upper layer top plate are arranged on the upper die base, a first through hole is formed in the middle of the upper layer die frame, and a main body die core is arranged in the first through hole. A plurality of second through holes allowing the corresponding punches to penetrate through are formed in the main body die core, a lower-layer die frame, a female die and a plurality of reset springs ejecting the lower-layer die frame upwards are arranged on the lower die base, and a third through hole allowing the female die to slide up and down in the third through hole is formed in the middle of the lower-layer die frame; the lower die holder and the upper die holder are respectively provided with a guide pillar and a guide sleeve which are matched with each other, and the bottom surface of the main body die core is provided with a plurality of air holes which can be connected with an air source so as to blow air during punching. The utility model has the advantages of simple structure and adhesion prevention.

Description

Technical Field

[0001] The utility model relates to the technical field of punching dies, in particular to an anti-adhesion punching die. Background Art

[0002] A punching die is a common machining tool, which is widely used in precision blanking and forming of various materials. A conventional punching die usually consists of the following main components: an upper die base, an upper template, an upper die core, a stripping plate, a special-shaped punch pin, a lower template, a blanking plate, etc.

[0003] However, for some special materials, especially materials with strong softness, such as alumina tape, etc., conventional punching dies are often incompetent. The tape is soft and has a certain viscosity, and these characteristics lead to many challenges in the processing using conventional punching dies. For example, due to the softness and viscosity of the material, the punched product is easy to adhere to the die surface and is difficult to smoothly separate from the die; during the demoulding process, the product adhered to the die may be displaced, affecting the accuracy of subsequent processes; the material remaining on the die surface not only affects the service life of the die, but also may lead to a decline in the quality of subsequent punched products.

[0004] These problems seriously restrict the processing efficiency and product quality of soft materials such as tape.

[0005] Therefore, it is necessary to further improve and perfect the existing technology to overcome these deficiencies, and the utility model is made based on this situation. Summary of the Utility Model

[0006] The purpose of the utility model is to overcome the deficiencies of the existing technology and provide a punching die with a simple structure and anti-adhesion.

[0007] The utility model is realized by the following technical solutions:

[0008] To solve the above technical problems, the utility model provides an anti-adhesion punching die, which includes an upper die base and a lower die base. A plurality of punch heads, an upper pressing plate, an upper top plate located below the upper pressing plate, and an upper die frame located below the upper top plate are arranged on the upper die base. A first through hole is arranged in the middle of the upper die frame, and a main die core is arranged in the first through hole. A plurality of second through holes for the corresponding punch heads to pass through are arranged on the main die core. A lower die frame, a die cavity, and a plurality of return springs for upwardly pressing the lower die frame are arranged on the lower die base. A third through hole for the die cavity to slide up and down therein is arranged in the middle of the lower die frame. A guide post and a guide sleeve that cooperate with each other are respectively arranged on the lower die base and the upper die base. A plurality of air holes capable of connecting an air source to blow air during punching are arranged on the bottom surface of the main die core.

[0009] In order to further solve the technical problems to be solved by the present utility model, in an anti-adhesion punching die provided by the present utility model, a gas passage communicating with an air hole is provided in the upper top plate, and an air inlet capable of connecting with a gas source is provided at one end of the gas passage.

[0010] In order to further solve the technical problems to be solved by the present utility model, in an anti-adhesion punching die provided by the present utility model, the air inlet is arranged on the side surface of the upper top plate.

[0011] In order to further solve the technical problems to be solved by the present utility model, in an anti-adhesion punching die provided by the present utility model, the air holes penetrate through the main body die core up and down. The bottom surface of the main body die core is flush with the bottom surface of the upper die holder, and the top surface of the main body die core is lower than the top surface of the upper die holder to form a gap therebetween. A butting port capable of communicating with the gap is provided at the lower end of the gas passage.

[0012] Compared with the prior art, the present utility model has the following advantages:

[0013] In the present utility model, a plurality of air holes are provided on the bottom surface of the main body die core, and these air holes can be connected to an external gas source. During the punching process, air is blown into the punching area through these air holes, effectively preventing the material to be punched from adhering to the surface of the die. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] The following further describes in detail the specific embodiments of the present utility model with reference to the drawings, wherein:

[0015] Figure 1 is a three-dimensional structural schematic diagram of the present utility model;

[0016] Figure 2 is an exploded schematic diagram of the present utility model;

[0017] Figure 3 is a structural schematic diagram of the upper top plate;

[0018] Figure 4 is a structural schematic diagram of the main body die core;

[0019] Figure 5 is a top view of the present utility model;

[0020] Figure 6 is Figure 5 a sectional view taken along the line A - O - A in DETAILED DESCRIPTION OF THE EMBODIMENTS

[0021] In order to enable those skilled in the art to better understand the technical solutions of the present utility model, the present utility model will be further described in detail below with reference to the drawings and specific embodiments.

[0022] Please refer to Figures 1 to 6, The present utility model provides an anti - adhesion punching die, which is particularly suitable for punching soft materials such as casting tapes. The structure and working principle of the present utility model will be described in detail below.

[0023] Overall structure of the die:

[0024] The anti - adhesion punching die of the present utility model mainly consists of an upper die base 1 and a lower die base 2. The upper die base 1 and the lower die base 2 are mutually matched through guide posts 21 and guide sleeves 11 to ensure the precise alignment of the upper and lower dies during the punching process.

[0025] Upper die structure:

[0026] Multiple components are arranged on the upper die base 1, from top to bottom in sequence:

[0027] 1) Several punches 3: used to perform the actual punching action.

[0028] 2) Upper layer pressure plate 4: provides support and fixation for the punches 3.

[0029] 3) Upper layer top plate 5: located below the upper layer pressure plate 4, playing the role of force transmission and air guiding.

[0030] 4) Upper layer die carrier 6: serves as a framework.

[0031] A first through - hole 61 is provided in the middle of the upper layer die carrier 6, and a main die core 7 is installed in this through - hole. Several second through - holes 71 are provided on the main die core 7, and these through - holes correspond to the punches 3 one by one, allowing the punches 3 to pass through for punching operations.

[0032] Lower die structure:

[0033] The structure of the lower die base 2 includes:

[0034] 1) Lower layer die carrier 8: serves as a framework.

[0035] 2) Die cavity 9: cooperates with the punches 3 to complete the punching action.

[0036] 3) Several reset springs 81: installed on the lower die base 2, used to upwardly press the lower layer die carrier 8 to reset the lower die structure after punching.

[0037] A third through - hole 82 is provided in the middle of the lower layer die carrier 8, and the die cavity 9 can slide up and down in this through - hole. This design increases the flexibility and precision of the die.

[0038] Anti - adhesion design:

[0039] The core innovation of the present utility model lies in its anti - adhesion design. Several air holes 72 are provided on the bottom surface of the main die core 7, and these air holes can be connected to an external air source. During the punching process, air is blown through these air holes into the punching area, effectively preventing the material to be punched from adhering to the die surface.

[0040] Gas path system:

[0041] To further achieve the anti - adhesion function, the present utility model designs a gas path system:

[0042] 1) A gas channel 51 is provided in the upper top plate 5 for delivering gas to the air holes 72.

[0043] 2) One end of the gas channel 51 is provided with an air inlet 511, which can be connected to an external gas source. Preferably, the air inlet 511 is arranged on the side surface of the upper top plate 5, and this arrangement facilitates connection and maintenance.

[0044] 3) The air holes 72 penetrate through the upper and lower surfaces of the main body die core 7. The bottom surface of the main body die core 7 is flush with the bottom surface of the upper die holder 6, while its top surface is lower than the top surface of the upper die holder 6, forming a gap 73.

[0045] 4) The lower end of the gas channel 51 is provided with a docking port 512, which can communicate with the gap 73. This design ensures that gas can enter the gap 73 from the air inlet 511 through the gas channel 51, through the docking port 512, and finally spray out from each air hole 72.

[0046] Working principle:

[0047] At the beginning of the punching operation, an external gas source supplies gas to the gas channel 51 through the air inlet 511. The gas passes through the channel 51, enters the gap 73 from the docking port 512, and finally sprays out through the air holes 72. When the punch 3 presses down to perform the punching action, the air holes 72 continuously spray gas towards the punching area, effectively preventing the material to be punched from adhering to the die surface. This design not only improves the punching quality but also extends the service life of the die.

[0048] The anti - adhesion punching die of the present utility model effectively solves the adhesion problem in the punching of soft materials through the added gas path system, greatly improving the punching efficiency and product quality. This design is particularly suitable for the punching processing of soft materials such as alumina tape casting, and has broad application prospects.

Claims

1. An anti-adhesion punching die, comprising an upper die base (1) and a lower die base (2), the upper die base (1) being provided with a plurality of punches (3), an upper laminate (4), an upper top plate (5) located below the upper laminate (4), and an upper die frame (6) located below the upper top plate (5), the upper die frame (6) being provided with a first through hole (61) in the middle, a main die core (7) being provided in the first through hole (61), and a plurality of punches (3) being provided on the main die core (7). A second through hole (71) for the corresponding punch (3) to pass through, the lower die base (2) is provided with a lower die frame (8), a die (9), and a plurality of return springs (81) for pressing the lower die frame (8) upward, a third through hole (82) is provided in the middle of the lower die frame (8) for the die (9) to slide up and down therein, the lower die base (2) and the upper die base (1) are respectively provided with guide pillars (21) and guide sleeves (11) that cooperate with each other, characterized in that: The bottom surface of the main mold core (7) is provided with a plurality of air holes (72) which can be connected to an air source for blowing air during punching.

2. The anti-adhesion punching die according to claim 1, characterized in that: A gas channel (51) capable of communicating with the gas hole (72) is provided in the upper top plate (5), and a gas inlet (511) capable of being connected to a gas source is provided at one end of the gas channel (51).

3. The anti-adhesion punching die according to claim 2, characterized in that: The air inlet (511) is arranged on the side of the upper top plate (5).

4. The anti-adhesion punching die according to claim 2, characterized in that: The air hole (72) runs through the main mold core (7) from top to bottom, the bottom surface of the main mold core (7) is flush with the bottom surface of the upper mold frame (6), the top surface of the main mold core (7) is lower than the top surface of the upper mold frame (6) to form a gap (73) between the two, and the lower end of the gas channel (51) is provided with a docking port (512) that can communicate with the gap (73).

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