CN201095169Y - Special-purpose die for producing bulb protecting sheath - Google Patents

Abstract

The utility model is a special die for the production of a bulb jacket. The die comprises an upper mould and a lower mould; thelower head part of the upper mould is semi-elliptical shaped; the upper part of the upper mould is cylindrical shaped; the lower mould is a mould chamber which is corresponding to the shape of the upper mould. With the adoption of the structure of the utility model, the shape of the bulb jacket is formed directly between the upper mould and the lower mould; when the upper mould is separated from the lower mould, the bulb jacket is absorbed on the upper mould; then the mould is separated from the bulb jacket, so that the parting line does not appear on the bulb jacket and the appearance of the product is greatly improved.

Description

A kind of particular manufacturing craft of producing the bulb sheath

Technical field:

The utility model relates to technical field of mold, refers in particular to a kind of particular manufacturing craft of producing the bulb sheath.

Background technology:

Usually the mould of processing bulb sheath is made up of the left mould of shape symmetry, right mould and core rod, the mould of this structure, the bulb sheath is owing to be subjected to the influence of the joint of left mould and right mould, can produce the technology die parting line of a projection, this technology die parting line can run through the outer surface of entire product, and is very not attractive in appearance.

Summary of the invention:

The purpose of this utility model is in order to solve the shortcoming of above-mentioned prior art, provides a kind of bulb sheath not with the particular manufacturing craft of technology die parting line.

For achieving the above object, the technical scheme that the utility model provides is: a kind of particular manufacturing craft of producing the bulb sheath, and this mould divides upper die and lower die, and the head portion of patrix is the semielliptical shape, and top is cylindric, and counterdie is and the corresponding die cavity of patrix shape.

After adopting the utility model structure, the shape of bulb sheath directly forms between upper die and lower die, when upper and lower mould separates, the bulb sheath can be adsorbed on patrix, the demoulding then, the bulb sheath just the technology die parting line can not occur like this, improves the outward appearance of product greatly.

Description of drawings:

Fig. 1 is the structural representation of the utility model upper die and lower die closure state;

Fig. 2 is the structural representation of the utility model upper die and lower die released state.

The specific embodiment:

Now elaborate the utility model in conjunction with the accompanying drawings:

As accompanying drawing 1～shown in Figure 2, the particular manufacturing craft of this bulb sheath divides patrix 1 and counterdie 2, the head portion 3 of patrix 1 is the semielliptical shape, top 4 is cylindric, counterdie 2 is and the corresponding die cavity of patrix 1 shape, after sheath was produced, die parting line was created in opening part, as long as a part of material of opening part is cut away, on the sheath just can die parting line not appear, if the surface requirements of sheath has frosted finish effect,, produce concavo-convex moulding at random as long as on die surface, carry out chemical attack, after producing, the bulb sheath just had corresponding frosted finish effect, in addition, many molds can be installed simultaneously on same set of mould bases as required, realize large-scale production.

Claims (1)

1. particular manufacturing craft of producing the bulb sheath, it is characterized in that: this mould divides patrix (1) and counterdie (2), and the head portion (3) of patrix (1) is the semielliptical shape, and top (4) are cylindric, and counterdie (2) is and the corresponding die cavity of patrix (1) shape.