CN204974976U - Convex hull forming die - Google Patents

Abstract

The utility model relates to a convex hull forming mold, which comprises a cover plate and a needle clamping plate positioned at the bottom of the cover plate, an upper mold is arranged on the needle clamping plate, punching needles are embedded in the upper mold, and a punching needle is set on the upper mold There is an elastic element, a lower mold and a lower template for positioning the lower mold are provided under the upper mold, and punching holes passing through the lower mold and corresponding to punching pins are provided on the lower mold. At the fixed end, the lower end of the elastic element is provided with a through hole corresponding to the punching needle. The needle head at the lower end of the punching needle extends out of the bottom of the upper die and is located in the through hole. There is a bottom plate supporting the lower mold, and there are leakage holes corresponding to the punching holes on the bottom plate. At least one vertical guide post is provided between the needle clamping plate and the lower template, and a guide sleeve is provided on the guide post. The lower template and the bottom plate A limit through hole corresponding to the guide post is provided. The utility model has the advantages of stable structure, high production efficiency, convenient use, high qualified rate of processed finished products and strong practicability.

Description

Convex Forming Die

technical field

The utility model relates to a forming die, in particular to a convex hull forming die.

Background technique

When processing metal sheet materials, it is sometimes necessary to process convex hulls and punch holes in the center of the convex hulls. In the prior art, the two processes of convex hull forming and punching are separated, and the production efficiency is low. Because two processes are required bit, resulting in more defective products and a high rate of product failure. The existing mold which integrates convex hull and punching is unreasonable in design, inconvenient to use and low in production efficiency.

Contents of the invention

Aiming at the deficiencies in the above-mentioned prior art, the utility model aims to provide a convex hull forming mold with high production efficiency, convenient operation, fast material retrieving and easy leakage of waste materials.

The technical scheme of the utility model is as follows: a convex hull forming mold, including a cover plate and a needle clamping plate positioned at the bottom of the cover plate, an upper mold is arranged on the needle clamping plate, and an upper mold is embedded in the upper mold. Punching needle, the upper mold is covered with elastic elements, the lower mold and the lower template for positioning the lower mold are arranged under the upper mold, and the lower mold is provided with a needle that passes through the lower mold and corresponds to the punch Needle punching.

Further, the punching pin includes a fixed end embedded in the cover plate.

Further, the lower end of the elastic element is provided with a through hole corresponding to the punching pin, and the needle at the lower end of the punching pin extends out of the bottom end of the upper die and is located in the through hole.

Further, the hole diameter of the punched hole is small at the top and large at the bottom.

Further, the bottom side of the lower formwork is detachably positioned with a bottom plate supporting the lower mold, and the bottom plate is provided with leakage holes corresponding to the punching holes.

Further, at least one vertical guide post is provided between the needle clamping plate and the lower template, a guide sleeve is provided on the guide post, and a limit position corresponding to the guide post is provided on the lower template and the bottom plate. hole.

Further, positioning grooves are provided on both sides of the bottom plate.

Further, the elastic element is elastic rubber.

Beneficial effects of the utility model: the upper mold of the utility model is embedded with punching pins, which can integrally complete the processing of convex hull forming and punching, and the processed products have a high qualified rate. The upper mold is sleeved with elastic elements, which solves the problem of processing The problem that the formed sheet material will be stuck on the punching needle is difficult to remove, which improves the production efficiency; the punching hole diameter of the lower die is small at the top and big at the bottom, which solves the problem of waste stuck. It will cause the waste material punched out by the punching needle to accumulate on the side wall of the punching hole and it is difficult to fall off. The long-term accumulation of waste material will reduce the punching hole diameter. The reduced punching hole will easily damage the punching needle. It is necessary to clean up the waste material on the inner wall of the punching hole. The punching hole diameter of the utility model is small at the top and big at the bottom, and the waste material punched out by the punching needle falls in time through the leakage hole of the bottom plate, and will not be stuck on the side wall of the punching hole, which effectively solves the problem of waste material stuck up; The platen and the clamping plate are limited, and the relative displacement of the upper mold and the lower mold in the horizontal direction will not occur, which significantly improves the processing accuracy.

Description of drawings

Fig. 1 is a structural representation of the utility model;

Fig. 2 is the structural representation of upper die among Fig. 1;

Fig. 3 is the structural representation of lower die in Fig. 1;

Fig. 4 is the structural representation of lower template in Fig. 1;

Fig. 5 is a schematic structural view of the bottom plate in Fig. 1;

In the figure, 1-cover plate, 2-needle clamping plate, 3-upper mold, 4-punching needle, 5-elastic element, 6-lower template, 7-bottom plate, 8-lower mold, 9-guide pillar, 10- Limiting hole, 41-fixed end, 42-needle, 51-through hole, 71-leakage hole, 72-locating groove, 81-punching, 91-guide sleeve.

detailed description

The utility model will be described in further detail below in conjunction with specific embodiments and accompanying drawings.

A convex hull forming mold as shown in Figures 1-5, comprising a cover plate 1 and a needle clamping plate 2 positioned at the bottom of the cover plate 1, the needle clamping plate 2 is provided with an upper die 3, and the upper die 3 is A punch pin 4 is embedded, an elastic element 5 is provided on the upper mold 3, a lower mold 8 and a lower mold plate 6 for positioning the lower mold 8 are arranged below the upper mold 3, and the lower mold 8 is provided with a And corresponding to the punching hole 81 of the punching needle 4 .

The punching pin 4 includes a fixed end 41 embedded in the cover plate 1 , the cover plate 1 is provided with a groove matching the fixed end 41 , and the fixed end 41 is fixed on the groove. The lower end of the elastic element 5 is provided with a through hole 51 corresponding to the punching needle 4. The needle head 42 at the lower end of the punching needle 4 extends out of the bottom end of the upper die 3 and is located in the through hole 51, effectively protecting the punching needle 4. When the elastic element 5 is compressed to the needle head After the horizontal plane where 42 is located, the needle head 42 is in contact with the sheet material to be processed, and this structure ensures that the needle head 42 is not easily deformed.

The aperture of the punching hole 81 is smaller at the top and larger at the bottom, which effectively prevents the waste residue punched out by the punching needle 4 from being stuck on the inner wall of the punching hole 81 and causing damage to the punching needle 4 . The bottom side of the lower template 6 is detachably positioned with a bottom plate 7 supporting the lower mold 8. The bottom plate 7 enhances the structural strength and supports the lower mold 8 at the same time. The installation and maintenance of the lower mold 8 are convenient. The bottom plate 7 is provided with corresponding The material leakage hole 71 of the punching hole 81, the waste material of the punching hole 81 falls from the material leakage hole 71.

At least one vertical guide post 9 is provided between the needle clamping plate 2 and the lower template 6, and a guide sleeve 91 is provided on the guide post 9, and a corresponding guide post 9 is provided on the lower template 6 and the base plate 7. The limit hole 10 and the guide post 9 move up and down under the limit effect of the limit hole 10, effectively avoiding the relative displacement in the horizontal direction between the upper mold 3 and the lower mold 8, and ensuring the accurate position of the convex hull forming. Preferably, the cover plate 1 is connected with a driving mechanism. Under the action of the driving mechanism, the cover plate 1, the needle clamping plate 2, and the guide post 9 are integrated to move in the vertical direction, and then drive the upper needle clamp positioned on the needle clamping plate 2. The mold 3 moves in the vertical direction, and the elastic element 5 cooperates with the punching needle 4 to realize the forming of the convex hull and the processing of punching holes, which is easy to operate and high in production efficiency.

In another embodiment of the present invention, the bottom plate 7 is connected with a driving mechanism, and the bottom plate 7 and the lower template 6 move in the vertical direction under the action of the driving mechanism to realize the forming of the convex hull and the processing of punching. Preferably, two sides of the bottom plate 7 are provided with positioning grooves 72, and the bottom plate 2 is positioned on the base through the positioning grooves 72 with bolts, which is convenient for installation and stable in structure.

The elastic element 5 can be a compression spring or elastic rubber, preferably elastic rubber, which has a better protective effect on the punching needle 4 .

The utility model has the advantages of stable structure, high production efficiency, convenient use, high qualified rate of processed finished products and strong practicability.

The technical solutions provided by the embodiments of the present invention have been introduced in detail above. In this paper, specific examples have been used to illustrate the principles and implementation methods of the embodiments of the present invention. The descriptions of the above embodiments are only applicable to help understand the present invention. The principle of the embodiment; at the same time, for those of ordinary skill in the art, according to the embodiment of the present invention, there will be changes in the specific implementation and the scope of application. Utility model restrictions.

Claims (8)

1. A convex hull molding die, characterized in that it comprises a cover plate (1) and a needle clamping plate (2) positioned at the bottom of the cover plate (1), the needle clamping plate (2) is provided with an upper die (3), the upper die (3) is embedded with a punching needle (4), the upper die (3) is provided with an elastic element (5), and the lower die (3) is provided with a lower die (8) and the lower template (6) for positioning the lower die (8), and the lower die (8) is provided with a punching hole ( 81). 2. The convex bag forming die according to claim 1, characterized in that, the punch (4) includes a fixed end (41) embedded in the cover plate (1). 3. The convex bag forming die as claimed in claim 1, wherein the lower end of the elastic element (5) is provided with a through hole (51) corresponding to the punch pin (4), and the punch pin (4) ) the needle (42) at the lower end extends out of the bottom of the upper die (3) and is located in the through hole (51). 4. The convex hull forming die according to claim 1, characterized in that, the diameter of the punching hole (81) is smaller at the top and larger at the bottom. 5. convex hull forming mold as claimed in claim 1, is characterized in that, the bottom side of described lower template (6) is detachably positioned with the base plate (7) that supports described lower mold (8), and described base plate ( 7) There are leakage holes (71) corresponding to the punching holes (81). 6. convex bag forming mold as claimed in claim 5, is characterized in that, at least one vertical guide column (9) is provided between the described needle clamping plate (2) and the lower template (6), and the guide column A guide sleeve (91) is provided on the column (9), and a limit hole (10) corresponding to the guide column (9) is provided on the lower template (6) and the bottom plate (7). 7. The convex hull forming die according to claim 5, characterized in that, positioning grooves (72) are provided on both sides of the bottom plate (7). 8. The convex hull forming die according to claim 1, characterized in that, the elastic element (5) is elastic rubber.