CN2177679Y

CN2177679Y - Composite bottom for plastic three-neck thrinking top-pop-can

Info

Publication number: CN2177679Y
Application number: CN 93242828
Authority: CN
Inventors: 谷小富
Original assignee: Individual
Current assignee: Individual
Priority date: 1993-10-29
Filing date: 1993-10-29
Publication date: 1994-09-21
Anticipated expiration: 2003-10-29

Abstract

The utility model relates to a composite bottom for a plastic three-neck shrinking top-pop-can. The composite bottom for a plastic three-neck shrinking top-pop-can is composed of a can cylinder and a can bottom. The lower part of the opening of the plastic can cylinder is provided with a shrinking neck. The opening of the can is provided with an opening folded edge. The bottom is provided with a bottom folded edge. The bottom is padded with a plastic inner bottom. A tinplate outer bottom is coated outside the plastic inner bottom. That is to say, the tinplate outer bottom coats the edge and seals the bottom for the inner bottom and the bottom folded edge of the can cylinder. The utility model has the advantages of convenient fabrication, low cost, high strength, corrosion resistance, reliable quality, etc.

Description

Composite bottom for plastic three-neck thrinking top-pop-can

The utility model relates to the pop can of packaging for foodstuff.

The existing pop can of producing can be divided into straight barrel type pop can and necking down type pop can, and two caliber size unanimity of straight barrel type pop can is made fairly simple.So-called necking down type (as three necking downs) pop can, its base diameter is big, and neck and oral area shrink, attractive in fashion, if but adopt the aluminum alloy materials manufacturing, not only technical risk is big, and the cost height.So adopt easily jar tube of plastic production, and the aluminum alloy system of application cover, and at the bottom of the tin-plate material system jar.But as what run into packing is acidic beverages, tin-plate mashed the wearing that can be corroded.Therefore, the jar end problem that exists in the three necking down pop cans of prior art to injection-moulding plastic can't solve.

The purpose of this utility model is the combined bottom of a kind of plastics three necking down pop cans of design.

The technical scheme of the utility model plastics three necking down pop can combined bottom is: by being formed in a jar tube and a jar end, the oral area of its plastic tank tube is necking down down, and a jar mouth has a mouthful bound edge, bottom that end bound edge is arranged, and in the bottom is lined with plastics the end, the tin-plate outer bottom in end outsourcing in plastics.

Compared with the prior art plastics three necking down pop can combined bottom of the present utility model, have characteristics such as easy to process, with low cost, reliable in quality, withstanding corrosion, intensity height.

Fig. 1 is the structural representation of the utility model plastics three necking down pop can combined bottom;

Fig. 2 is the bottom schematic view of the utility model plastics three necking down pop can combined bottom.

Below in conjunction with Fig. 1-Fig. 2 embodiment of the present utility model is elaborated.

1, mouthful bound edge; 2, necking down; 3, jar tube; 4, the end in the plastics; 5, end bound edge; 6, tin-plate outer bottom.

The utility model discloses a kind of plastics three necking down pop can combined bottom, by the jar tube 3 of plastics injections, at the oral area of jar tube mouthful bound edge 1 is arranged, a mouthful bound edge matches with cover, and necking down 2 generally is three necking downs.In the bottom of jar tube end bound edge 5 is arranged, and is lined with at the interior end 4 that plastics are made in the bottom, the outer bottom 6 of tin-plate in the outsourcing of the interior end again, promptly by tin-plate outer bottom 6 the end bound edge 5 of the interior end 4 and jar tube bound edge back cover together.The interior end, can at first be bonded on the end bound edge or on the inwall of jar tube, also can not bondingly be attached on the end bound edge.

Claims

1, plastics three necking down pop can combined bottom by being formed in a jar tube and a jar end, are necking down (2) under the oral area of plastic tank tube (3), the jar mouth has a mouthful bound edge (1), end bound edge (5) is arranged at the bottom, it is characterized in that the bottom is lined with the end (4) in the plastics, and tin-plate outer bottom (6) in end outsourcing in plastics

2, plastics three necking down pop can combined bottom as claimed in claim 1, it is characterized in that the interior end (4) can be bonded at first that end bound edge (5) is gone up or the inwall of jar tube on or be attached on the end bound edge.