CN2284375Y

CN2284375Y - Injection shell case series

Info

Publication number: CN2284375Y
Application number: CN 96225822
Authority: CN
Inventors: 梁世安; 赵大为
Original assignee: LIAOYANG LONGSHENG PLASTIC CO Ltd
Current assignee: LIAOYANG LONGSHENG PLASTIC CO Ltd
Priority date: 1996-04-09
Filing date: 1996-04-09
Publication date: 1998-06-17
Anticipated expiration: 2006-04-09

Abstract

The utility model discloses a shell case of injection series, relating to a shell and a shell case for shooting. The utility model is made into a full plastic shell case by using modified polyethylene as raw material with an injection molding technology. The external part of the shell case is divided into two parts-a shell seat and a shell body; the inner part of the shell case is divided into a powder chamber, a shell cup chamber and a sealing part; the bottom of the shell seat is provided with table room and primer holes; the edge of the powder chamber is in an arc shape or a square shape at the side near the shell seat, or the shell seat is embedded with metal strengthening rings with different specifications by fitting metal stamping process according to different needs, so that the shell case of injection series, which has high standard and low cost in production process and quality, is an optimal shell case used for shooting and hunting.

Description

The series injection shell case

The utility model relates to the cylinder housing of shooting with bullet.

At present, China's specialty shooting and hunting are divided into metal bullet case substantially and partly mould shell case two big classes with the shell case of bullet.

Metal bullet case is the most original cylinder housing, is to adopt copper or aluminum alloy materials to make through the die cast metal moulding process.

Partly moulding shell case is the plastics sebific duct that adopts expressing technique to make, after cutting as the bomb body of shell case, with sheet metal through punching press, get type after as the bullet seat of shell case, then bomb body is embedded in the metal stiffening ring of bullet seat, and in the pipe of bomb body, installing ring-like fastening pad additional, the metal stiffening ring through the bullet seat tightens up the cylinder housing that moulding process is assembled into semimetal, half plastics again.

This shell case of partly moulding is through injection moulding, twice moulding of trombone slide, strikes out metab with complicated technology, at last three parts assemblings is formed a shell case, so cost height, efficient are low.In addition, on manufacture craft, operation is long, complex process, relates to plastics expressing technique, Shooting Technique, metal stamping technology, especially precision prescribed height in the selection of plastic raw materials.

The purpose of this utility model is problems such as the complex process, cost height, the efficient that exist at prior art are low, seek a kind of modified poly ethylene and make raw material, through single injection-molded, make overall plastic shell case, or according to different needs, the complexed metal Sheet Metal Forming Technology, the metal stiffening ring of embedding different size forms the series injection shell case on the bullet seat.

Technical solution of the present utility model is: make overall plastic shell case by injection molding process, external structure is divided into bullet seat (1) and bomb body (2) two parts, shell case inside is divided into powder chamber (5), bullet cup chamber (6) and closure part (7), interstation (3) and fire in a stove before fuel is added hole (4) were arranged on the end of bullet seat (1), were circular arc or square at powder chamber (5) near bullet seat (1) one lateral edges.

Fig. 1 is the schematic diagram of first kind of shell case.

Fig. 2 is the schematic diagram of second kind of shell case.

Fig. 3 is the A type schematic diagram of first kind of shell case.

Fig. 4 is the Type B schematic diagram of first kind of shell case.

Fig. 5 is the C type schematic diagram of first kind of shell case.

Fig. 6 is the A type schematic diagram of second kind of shell case.

Fig. 7 is the Type B schematic diagram of second kind of shell case.

Fig. 8 is the C type schematic diagram of second kind of shell case.

The utility model is described in further detail below in conjunction with accompanying drawing.

Embodiment 1:

Make shell case by injection molding process, external structure is divided into bullet seat (1) and bomb body (2) two parts, shell case inside is divided into powder chamber (5), bullet cup chamber (6) and closure part (7), at bullet seat (1) interstation (3) and fire in a stove before fuel is added hole (4) are arranged at the end, be used to install the fire in a stove before fuel is added, is circular arc at powder chamber (5) near bullet seat (1) one lateral edges, the bomb body wall thickness basically identical of bullet cup chamber (6), the wall thickness attenuation gradually of closure part (7).The bomb body of shell case (2) outer surface has the decorative stripe (8) of the concentric shafts of being parallel to.

Embodiment 2:

The making of shell case bomb body is with embodiment 1, and along being embedded in through punching press, the type of getting with quoit (10), its effect is high temperature to occur during for gunpowder explosion, when plastic ball shell is heated, can successfully shell case be withdrawed from bore on the bullet base of bullet seat (1).

Embodiment 3:

The making of shell case bomb body is embedded in through punching press, the type of getting with quoit (11) in the bullet baseplane of bullet seat (1) with embodiment 1.

Embodiment 4:

The making of shell case bomb body is embedded in through punching press, the type of getting with quoit (12) in bullet baseplane, the bullet seat side of bullet seat (1) with embodiment 1.

Embodiment 5:

The structure of second kind of model shell case is: the shell case outside is divided into bullet seat (1) and bomb body (2) two parts, shell case inside is divided into powder chamber (5), bullet cup chamber (6) and closure part (7), at bullet seat (1) end interstation (3) and fire in a stove before fuel is added hole (4) are arranged, be used to install the fire in a stove before fuel is added, is square at powder chamber (5) near bullet seat (1) one lateral edges, its effect is the fire in a stove before fuel is added is increased by the package power of plastics and prevent that the fire in a stove before fuel is added from coming off, the outside, fire in a stove before fuel is added hole (4) in bullet seat (1) baseplane is provided with technology groove (9), its objective is in order to prevent that plastics from shrinking, the wall thickness of powder chamber (5) and closure part (7) by the bullet seat to the attenuation gradually of bomb body direction, the wall thickness basically identical of bullet cup chamber (6).

Embodiment 6:

The making of shell case bomb body is embedded in through punching press, the type of getting with quoit (10) on the edge, bullet base of bullet seat (1) with embodiment 5.

Embodiment 7:

The making of shell case bomb body is embedded in through punching press, the type of getting with quoit (11) in the bullet baseplane of bullet seat (1) with embodiment 5.

Embodiment 8:

The making of shell case bomb body is embedded in through punching press, the type of getting with quoit (12) in bullet baseplane, the bullet seat side of bullet seat (1) with embodiment 5.

This overall plastic shell case adopts modified poly ethylene to make raw material, single injection-molded is made overall plastic shell case, or according to different needs, the complexed metal Sheet Metal Forming Technology, on the bullet seat, embed the metal stiffening ring of different size, form the series injection shell case, in production technology and reach high standard qualitatively, cost is low, is present shooting, the best shell case of the usefulness bullet of hunting.

Claims

1, a kind of injection moulding shell case, comprise bullet seat (1) and bomb body (2), it is characterized in that: shell case inside is divided into powder chamber (5), bullet cup chamber (6) and closure part (7), interstation (3) and fire in a stove before fuel is added hole (4) were arranged on the end of bullet seat (1), were circular arc or square at powder chamber (5) near bullet seat (1) one lateral edges.

2, injection moulding shell case according to claim 1, its feature is being done: when being square near bullet seat (1) one lateral edges, be provided with technology groove (9) in the outside, fire in a stove before fuel is added hole (4) of bullet seat (1) baseplane at powder chamber (5).

3, injection moulding shell case according to claim 1 is characterized in that, is embedded in through punching press, the type of getting with quoit (10) on the edge, bullet base of bullet seat (1).

4, injection moulding shell case according to claim 1 is characterized in that: the bullet baseplane at bullet seat (1) is embedded in through punching press, the type of getting with quoit (11).

5, injection moulding shell case according to claim 1 is characterized in that: bullet baseplane, bullet seat side at bullet seat (1) are embedded in through punching press, the type of getting with quoit (12).