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Aluminum alloy transparent cover and production method thereof

A production method and a technology for a transparent cover, applied in the field of canned food, can solve the problems of inability to observe the state of the food in the can, inconvenience for customers to purchase, etc., and achieve the effect of convenient purchase and use.

Active Publication Date: 2020-06-30
广州龙驰包装材料有限公司 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The current canned food easy-open lid with pull ring is made of metal sheet, and the state of the food in the can cannot be observed, which is not convenient for customers to choose

Method used

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  • Aluminum alloy transparent cover and production method thereof
  • Aluminum alloy transparent cover and production method thereof
  • Aluminum alloy transparent cover and production method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] Such as figure 1 , 2 , a kind of aluminum alloy transparent cover shown in 3, described aluminum alloy transparent cover is arranged at the opening of tank body, described aluminum alloy transparent cover comprises aluminum alloy ring cover 1, is arranged on the inner circle of aluminum alloy ring cover 1 The transparent cover 2 and the pull ring 3 are sealed and connected with the aluminum alloy ring cover 1; the transparent cover 2 is formed by compounding at least one layer of polyester film. The pull ring 3 is located on the transparent cover 2 .

[0023] The polyester film in this embodiment is made of five-layer composite, and its thickness is moderate. The five-layer polyester film is bonded with an F-grade adhesive. The product has good mechanical, electrical, and heat-resistant properties. No creepage, high withstand voltage, anti-aging.

[0024] It has the advantages of being easy to tear, easy to open, high temperature sterilization, high temperature cooki...

Embodiment 2

[0035] A production method of an aluminum alloy transparent cover, comprising the following steps: (1) a transparent cover composed of composite heat-pressed multilayer polyester films; (2) installing the transparent cover in an inner pressure groove of an aluminum alloy ring cover; (3) ) pressing the transparent cover into the inner pressure groove of the aluminum alloy ring cover by punching with a stamping die; (4) fixing the transparent cover in the inner pressure groove of the aluminum alloy ring cover by adopting a heat sealing method.

[0036] Wherein, the step (4) includes two processes of preheating and heat sealing to bond the two transparent covers in the inner pressure groove of the aluminum alloy ring cover.

[0037] Wherein, the stamping die described in the step (3) includes a bottom stamping die 6 and an upper stamping die 7; the die faces of the bottom stamping die 6 and the upper stamping die 7 are all provided with protrusions corresponding to the annular hea...

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Abstract

The invention relates to an aluminium alloy transparent cover and a production method. The aluminium alloy transparent cover is arranged at the opening part of a tank body, and comprises an aluminiumalloy ring cover, a transparent cover body and a pull ring; the transparent cover body is arranged in an aluminium alloy ring cover inner ring; and the transparent cover body is hermetically connectedwith the aluminium alloy ring cover, and is formed by compounding one or more layers of polyester films. The production method comprises the following steps: (1) performing composite hot-pressing onthe transparent cover body formed by the multiple layers of polyester films; (2) mounting the transparent cover body in a pressing groove in the inner side of the aluminium alloy ring cover; (3) punching by a punching die to press the transparent cover body in the pressing groove in the inner side of the aluminium alloy ring cover; and (4) fixing the transparent cover body in the aluminium alloy ring cover by adopting a heat sealing method. The aluminium alloy transparent cover has the advantages of being easy to tear and convenient to open, realizing high temperature resistant sterilization and high temperature resistant cooking, being suitable for a high temperature of 150 DEG C, resisting high pressure, being transparent, and being capable of seeing foods in a tank.

Description

technical field [0001] The invention relates to the technical field of canned food, in particular to an aluminum alloy transparent cover and a production method thereof. Background technique [0002] Canning is a method of storing food; food is first processed at high temperature, then put into tin cans, and vacuum-treated; canned food is sterilized at high temperature, vacuum-packed, without adding preservatives, and the food storage period is longer Long, canned food is a fast-moving consumer product for people's livelihood, and the upper part has a pull-ring easy-open lid, which is suitable for consumers. The pull-ring easy-open lid of the current canned food is made of sheet metal, which cannot observe the state of the food in the can, which is inconvenient for customers to choose and buy. Only the easy-open lid made of transparent material can observe the state of the food in the can, and the lid of the canned food must have a material that can withstand high-temperatu...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B65D17/34B65D17/00B32B27/36B32B27/08B32B33/00B29D99/00
CPCB29D99/0096B32B27/08B32B27/36B32B33/00B65D17/02B65D17/06B65D17/34
Inventor 张满昌
Owner 广州龙驰包装材料有限公司