A punch die capable of not taking away waste

Abstract

The utility model discloses a punch die of can not take away waste material, including upper die and lower die, be provided with guide hole and forming hole on the lower die, the guide hole is used for setting the insertion of the guide column on the upper die, to realize the direction, the forming hole is used for setting the insertion of the punch on the upper die, to realize the punching, the forming hole contains straight line section through -hole and horn mouth through -hole, the straight line section through -hole is cooperated with punch, realizes the punching, the horn mouth through -hole is set below the straight line section through -hole, and the aperture of horn mouth through -hole gradually increases from top to bottom, its characterized in that: the straight line section through -hole is horizontally provided with the clamping spring, the clamping spring can be withdrawn in the lower die when meeting the punch, when the punch is recycled, the clamping spring can stretch out from the inner wall of straight line section through -hole again, prevents the waste material to be taken away by the punch, the punch die of can not take away waste material can prevent the punch to take away waste material, can also continuous punch forming action.

Description

Technical Field

[0001] This utility model belongs to the technical field of stamping dies, specifically relating to a stamping die that can prevent the punch from carrying away scrap while still allowing for continuous stamping and forming. Background Technology

[0002] Stamping dies are special process equipment used in cold stamping to process materials (metal or non-metal) into parts or semi-finished products. Stamping is a pressure processing method that uses dies mounted on a press to apply pressure to materials at room temperature, causing them to separate or plastically deform, thereby obtaining the desired parts. In the punching process of existing stamping dies, the stamping waste on the stamping die is easily carried away by the punch, which can easily cause poor stamping in the next stamping.

[0003] To address this, we developed a stamping die that can prevent the punch from carrying away scrap while still allowing for continuous stamping and forming. Summary of the Invention

[0004] The purpose of this invention is to provide a stamping die that can prevent the punch from carrying away waste material and can perform continuous stamping and forming operations without carrying away waste material.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a stamping die that does not carry away scrap, comprising an upper die and a lower die; the lower die is provided with a guide hole and a forming hole; the guide hole is used for the insertion of a guide post provided on the upper die to achieve guidance; the forming hole is used for the insertion of a punch provided on the upper die to achieve punching; the forming hole includes a straight section through hole and a flared through hole; the straight section through hole cooperates with the punch to achieve punching; the flared through hole is located below the straight section through hole, and the diameter of the flared through hole gradually increases from top to bottom; a retaining spring is horizontally provided inside the straight section through hole; the retaining spring can retract into the lower die when it encounters the punch; when the punch retracts, the retaining spring can extend out again from the inner wall of the straight section through hole to prevent scrap from being carried away by the punch.

[0006] Preferably, the outer end of the locking spring is provided with a wedge; when the locking spring is in a free state, the upper end of the wedge contacts the wall of the straight section through hole; when the wedge encounters the punch, it can retract into the lower die; when the punch retracts, the wedge can extend out of the inner wall of the straight section through hole again under the action of the locking spring, preventing the waste material from being carried away by the punch.

[0007] Preferably, five locking springs are horizontally arranged from top to bottom inside the through hole of the straight section; the locking springs are arranged parallel to each other.

[0008] Preferably, each of the locking springs has a wedge at its end.

[0009] Compared with the prior art, this utility model provides a stamping die that does not carry away waste material, and has the following beneficial effects: The present invention relates to a stamping die that prevents waste material from being carried away. A retaining spring is horizontally installed within the straight section through-hole. When the punch encounters the die, the retaining spring retracts into the lower die. When the punch retracts, the retaining spring extends again from the inner wall of the straight section through-hole to prevent waste material from being carried away by the punch. Simultaneously, during continuous stamping, the waste material above will squeeze the waste material below until it falls through the flared through-hole. This design makes it difficult for waste material to be carried away by the punch, reducing the defect rate and ensuring continuous stamping of the forming hole, making it highly practical. Attached Figure Description

[0010] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings: Figure 1 This is a schematic diagram of the lower die of a stamping die that can prevent the removal of waste material, as proposed in this utility model. Figure 2 This is a cross-sectional view of the forming hole of the lower die of a stamping die that can prevent the removal of waste material, as proposed in this utility model. In the diagram: 1. Lower mold; 2. Guide hole; 3. Forming hole; 31. Straight section through hole; 32. Trumpet mouth through hole; 311. Locking spring. Detailed Implementation

[0011] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0012] In the description of this utility model, it should be noted that the terms "upper," "lower," "inner," "outer," "front end," "rear end," "both ends," "one end," and "the other end," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0013] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," and "connected," etc., should be interpreted broadly. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0014] Please see Figure 1 , Figure 2 This utility model provides a technical solution: a stamping die that does not carry away waste material, including an upper die (not shown) and a lower die 1; the lower die 1 is provided with a guide hole 2 and a forming hole 3; the guide hole 2 is used for the insertion of a guide post (not shown) provided on the upper die to achieve guidance; the forming hole 3 is used for the insertion of a punch (not shown) provided on the upper die to achieve punching; the forming hole 3 includes a straight section through hole 31 and a flared through hole 32; the straight section through hole 31 cooperates with the punch to achieve punching; the flared through hole 32 is located below the straight section through hole 31, and the diameter of the flared through hole 32 gradually increases from top to bottom; a retaining spring 311 is horizontally provided in the straight section through hole; the retaining spring 311 can retract into the lower die 1 when it encounters the punch; when the punch retracts, the retaining spring 311 can extend out again from the inner wall of the straight section through hole 31 to prevent waste material from being carried away by the punch.

[0015] In this embodiment, the outer end of the locking spring 311 is provided with a wedge (not shown); when the locking spring 311 is in a free state, the upper end of the wedge contacts the hole wall of the straight section through hole 31; when the wedge encounters the punch, it can retract into the lower die 1; when the punch retracts, the wedge can extend out of the inner wall of the straight section through hole 31 again under the action of the locking spring 311, preventing the waste material from being carried away by the punch.

[0016] In this embodiment, five locking springs 311 are horizontally arranged from top to bottom inside the through hole of the straight section; the locking springs 311 are arranged parallel to each other.

[0017] In this embodiment, each of the locking springs 311 is provided with an inclined block at its end.

[0018] During operation, when the stamping die begins stamping, the scrap material is deformed by the punch and can be stuck into the straight section through hole 31 on the forming hole 3. The locking spring 311 can retract into the lower die 1 when it encounters the punch. When the punch retracts, the locking spring 311 can extend out of the inner wall of the straight section through hole 31 again to prevent the scrap material from being carried away by the punch. During continuous stamping, the scrap material above will squeeze the scrap material below until the scrap material falls out of the flared through hole 32. In this way, the scrap material is not easily carried away by the punch, reducing the defect rate, and the forming hole 3 can be continuously stamped and formed, which is highly practical.

[0019] Compared with the prior art, this utility model provides a stamping die that does not carry away waste material, and has the following beneficial effects: The present invention describes a stamping die that prevents waste material from being carried away. A retaining spring 311 is horizontally installed within the straight section through-hole of the die. When the punch encounters the die, the retaining spring 311 retracts into the lower die 1. When the punch retracts, the retaining spring 311 extends again from the inner wall of the straight section through-hole 31 to prevent waste material from being carried away by the punch. Simultaneously, during continuous stamping, the waste material above will squeeze the waste material below until it falls from the flared through-hole 32. This makes it difficult for waste material to be carried away by the punch, reducing the defect rate and ensuring continuous stamping operation of the forming hole 3, making it highly practical.

[0020] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A stamping die capable of not removing waste material, comprising an upper die and a lower die; the lower die is provided with a guide hole and a forming hole; the guide hole is used for the insertion of a guide post provided on the upper die to achieve guidance; the forming hole is used for the insertion of a punch provided on the upper die to achieve punching; the forming hole includes a straight section through hole and a flared through hole; the straight section through hole cooperates with the punch to achieve punching; the flared through hole is located below the straight section through hole, and the diameter of the flared through hole gradually increases from top to bottom; characterized in that: A retaining spring is horizontally installed inside the through hole of the straight section; the retaining spring can retract into the lower die when it encounters the punch; when the punch retracts, the retaining spring can extend out again from the inner wall of the through hole of the straight section to prevent the waste material from being carried away by the punch.

2. The stamping die that does not carry away waste material according to claim 1, characterized in that: The outer end of the locking spring is provided with an inclined block; when the locking spring is in a free state, the upper end of the inclined block contacts the hole wall of the straight section through hole; when the inclined block encounters the punch, it can retract into the lower die; when the punch retracts, the inclined block can extend out of the inner wall of the straight section through hole again under the action of the locking spring, preventing the waste material from being carried away by the punch.

3. The stamping die that does not carry away waste material according to claim 2, characterized in that: Five locking springs are horizontally arranged from top to bottom inside the through hole of the straight section; the locking springs are arranged parallel to each other.

4. The stamping die according to claim 3, characterized in that: Each of the locking springs has a wedge at its end.

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