CN2053976U - Butterfly valve bush mould - Google Patents

Abstract

The utility model relates to a butterfly valve bush mould. The structure of the utility model is that the outside of an entire inner core mould is sheathed with two half outer moulds whose outer surfaces are matched through a conical surface shape and a slope outer sleeve and are fixed together through a pin; pressing plates for a material cavity are arranged on the upper ends of the two half external moulds, and material feeding sprues are uniformly arranged on the pressing plates for a material cavity; ventilation flumes are arranged among the inner core mould and the two half outer moulds. The overflow material in the utility model is little, and the dead angles where material can not flow in a material feeding cavity does not exist. The utility model has the advantages of easy opening, convenient process, and high product yield.

Description

Butterfly valve bush mould

The utility model relates to a kind of butterfly valve lining press injecting type sulfurizing mould.

In the processing and forming of various nonmetallic materials, mostly common mould design is that interior core and external mold are two-half die at present, and She Ji advantage is to be convenient to the demoulding like this.But, but brought trouble for the processing of mould, especially for the polygon edge of those abnormity, the goods of many flutes formula, the processing of mould is just more complicated, and the service life of mould is also shorter.

In order to reduce the complexity in the Mould Machining, the utility model is except parts such as the top board that uses general mould to have, pin holder handle, it is characterized in that, there is the ventilation chute (8) of a circle 3-4mm lower end in whole between core (3) and the two exterior mold halves (4), match with inclined-plane overcoat (6) in the conical surface outside of two exterior mold halves (4), evenly distributed 8 material holes of its top configuration, the aperture is the material chamber pressing plate (2) of φ 3.The utility model has reduced the many troubles in the Mould Machining, and is simple to operate, labor and material saving, finished product rate height.

Fig. 1 is the assembly structure figure of mould;

Fig. 2 is the analysing and observe of core in whole, front view;

Fig. 3 is the analysing and observe of two exterior mold halves, vertical view;

Fig. 4 is the analysing and observe of inclined-plane overcoat, vertical view.

The outside of interior core (3) puts two exterior mold halves (4), there is the ventilation chute (8) of the 3-4mm of a circle inclination lower end between interior core (3) and the two exterior mold halves (4), the full degree of Liao De Note when these chute hoppers (8) have guaranteed material feeding, making in the whole material chamber does not have the material feeding dead angle, is convenient to Qi Mo simultaneously again.Match with inclined-plane overcoat (6) with conical surface form in the outside of two exterior mold halves (4), such design makes that two exterior mold halves (4) fastens sternlyer under the situation of pressurization.After interior core (3), two exterior mold halves (4) and inclined-plane overcoat (6) install, pin (5) is penetrated in the hole, lock this three parts.Then, add material loading chamber pressing plate (2) and top board (1), just can place heating, material feeding on the press.Behind sulfidization molding, take off pin, the demoulding, finish.

(7) are goods spare among the figure.

Claims (1)

1, a kind of butterfly valve lining mould of forming by top board, pin, holder handle, it is characterized in that, there is the ventilation chute (8) of a circle 3-4mm lower end in whole between core (3) and the two exterior mold halves (4), match with inclined-plane overcoat (6) in the conical surface outside of two exterior mold halves (4), its top is disposing evenly distributed 8 material holes, and the aperture is the material chamber pressing plate (2) of Φ 3.

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