CN206779287U - A kind of tubaeform product mold of hard alloy - Google Patents

Abstract

The utility model belongs to a horn-shaped cemented carbide product mold; it includes a lower punch arranged at the bottom of the mold, a protrusion is arranged in the middle of the lower punch, concave platforms are arranged on both sides of the lower punch, and a horn is arranged on the protrusion. Shaped products, the concave table is provided with a mold sleeve, the inner side of the mold sleeve is provided with a first upper punch, the inside of the first upper punch is provided with a second upper punch, and the middle part of the second upper punch is equipped with a core rod. The core rod passes through the middle of the trumpet-shaped product and communicates with the bottom of the lower punch, and a snap ring is provided between the mold sleeve and the first upper punch; with reasonable structural design, it can not only solve the problem of delamination cracks when the trumpet-shaped product is formed , and can also increase the pressing density of the bell mouth conical surface, so as to realize the advantages of one-time molding, greatly shortening the production cycle and improving work efficiency.

Description

A kind of cemented carbide trumpet-shaped product mold

technical field

The utility model belongs to the technical field of hard alloy moulds, in particular to a hard alloy trumpet-shaped product mold.

Background technique

For a long time, manufacturers have generally used the trimming method to produce trumpet-shaped products, that is, pressing them into large cylinders first, and then machining the blanks. This method is prone to delamination cracks and tailings when the trumpet-shaped products are formed. Production The efficiency is low, and the scrap rate is also high in case of damage.

Utility model content

The purpose of the utility model is to overcome the defects in the prior art, and provide a reasonable design, which can not only solve the problem of layered cracks when the horn-shaped products are formed, but also increase the pressing density of the cone surface of the horn mouth, so as to realize one-time molding. , a carbide horn-shaped product mold that greatly shortens the production cycle.

The purpose of this utility model is achieved in the following way: including the lower punch arranged at the bottom of the mold, the middle part of the lower punch is provided with a protrusion, the two sides of the lower punch are provided with concave platforms, and the protrusion is provided with a trumpet-shaped product, so There is a mold sleeve on the concave table, the inside of the mold sleeve is provided with a first upper punch, the inside of the first upper punch is provided with a second upper punch, the middle part of the second upper punch is equipped with a core rod, and the core rod passes through The middle part of the trumpet-shaped product communicates with the bottom of the lower punch, and a snap ring is arranged between the die sleeve and the first upper punch.

Preferably, the snap ring is semicircular.

Preferably, the inner diameter of the die sleeve matches the outer diameter of the first upper punch.

Preferably, the inner diameter of the first upper punch matches the outer diameter of the second upper punch.

The utility model has the advantages of reasonable structural design, which can not only solve the problem of layered cracks when the horn-shaped product is formed, but also increase the pressing density of the cone surface of the horn mouth, thereby realizing one-time forming, greatly shortening the production cycle and improving work efficiency.

Description of drawings

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

detailed description

In order to have a clearer understanding of the technical features, purposes and effects of the present utility model, the specific implementation of the present utility model is now described with reference to the accompanying drawings, in which the same reference numerals represent the same components. In order to keep the drawings concise, each drawing only schematically shows the parts related to the utility model, and they do not represent the actual structure of the product.

As shown in Figure 1, the utility model is a horn-shaped product mold of cemented carbide, which includes a lower punch 1 arranged at the bottom of the mold. A platform 3, a trumpet-shaped product 4 is provided on the protrusion 2, a mold cover 5 is provided on the concave platform 3, a first upper punch 6 is provided on the inner side of the mold cover 5, and a first upper punch 6 is provided inside the first upper punch 6. The second upper punch 7, the middle part of the second upper punch 7 is equipped with a core rod 8, the core rod 8 passes through the middle part of the trumpet-shaped product 4 and communicates with the bottom of the lower punch 1, the mold cover 5 and the first upper punch A snap ring 9 is provided between the 6. The snap ring 9 is semicircular. The inner diameter of the die sleeve 5 matches the outer diameter of the first upper punch 6 . The inner diameter of the first upper punch 6 matches the outer diameter of the second upper punch 7 .

The utility model adopts an upper punch split design, and the upper punch is divided into a first upper punch 6 and a second upper punch 7, the inner hole of the second upper punch 7 is equipped with a core rod 8, and the formed compact has a center hole. The inner diameter of the die sleeve 5 matches the outer diameter of the first upper punch 6, the inner diameter of the first upper punch 6 matches the outer diameter of the second upper punch 7, and the upper end of the first upper punch 6 is provided with a snap ring groove. The upper two semicircular snap rings 9 can limit the downward movement of the first upper punch 6, and the bottom of the mold is the lower punch 1.

When the utility model is pressed and formed, two semicircular snap rings 9 fix the first upper punch 6 on the die sleeve 5, and the second upper punch 7 is pressed first, and the second upper punch 7 is pressed to the same position as the first upper punch. After punching 6 to the same height, remove the snap ring 9, and simultaneously press the second upper punch 7 and the first upper punch 6 to the size specified by the trumpet-shaped product 4.

The utility model adopts the design of the split upper punch. When pressing and forming, the split upper punch is pressed down step by step, which solves the problem of layered cracks caused by excessive density at the junction of the conical surface and the cylindrical surface. The compact does not need to be machined and repaired, and it can be formed at one time, which greatly improves the utilization rate of raw materials and production efficiency.

In the description of the present utility model, it should be noted that, unless otherwise clearly stipulated and limited, the terms "set", "have" and so on should be understood in a broad sense, for example, they can be fixedly connected, integrally connected, or It can be a detachable connection; it can also be the internal communication of two components; it can be directly connected or indirectly connected through an intermediary. specific meaning in . The above detailed description is only a specific description of the feasible implementation of the present utility model, and they are not used to limit the protection scope of the present utility model. Any equivalent implementation, change and transformation made without departing from the technical spirit of the present utility model All should be included within the protection scope of the present utility model.

Claims (4)

1. A tungsten carbide trumpet-shaped product mold, characterized in that: it includes a lower punch (1) located at the bottom of the mold, the middle of the lower punch (1) is provided with a protrusion (2), and the two sides of the lower punch (1) There is a concave platform (3) on the side, a trumpet-shaped product (4) is provided on the protrusion (2), a mold cover (5) is provided on the concave platform (3), and the inner side of the mold cover (5) is provided There is the first upper punch (6), the second upper punch (7) is arranged inside the first upper punch (6), and the middle part of the second upper punch (7) is equipped with a core rod (8), and the core rod ( 8) Pass through the middle of the trumpet-shaped product (4) and communicate with the bottom of the lower punch (1), and a snap ring (9) is provided between the die sleeve (5) and the first upper punch (6). 2. A cemented carbide trumpet-shaped product mold according to claim 1, characterized in that: the snap ring (9) is semicircular. 3. A cemented carbide trumpet-shaped product mold according to claim 1, characterized in that: the inner diameter of the mold sleeve (5) matches the outer diameter of the first upper punch (6). 4. A tungsten carbide trumpet-shaped product mold according to claim 1, characterized in that: the inner diameter of the first upper punch (6) matches the outer diameter of the second upper punch (7).