CN215156584U

CN215156584U - High-temperature-resistant and sterilization can easy-to-tear cover

Info

Publication number: CN215156584U
Application number: CN202121463870.4U
Authority: CN
Inventors: 翁伟博; 邱锡辉
Original assignee: Guangdong Enpack Packaging Co ltd
Current assignee: British Union Metal Technology Shantou Co ltd
Priority date: 2021-06-30
Filing date: 2021-06-30
Publication date: 2021-12-14
Anticipated expiration: 2031-06-30

Abstract

The utility model discloses a high temperature resistant sterilizing's can easily tears lid, including lid and easy-open part, be equipped with the opening in the lid, easy-open part is including sealed lid and pull ring or pull tongue, and sealed lid covers the opening, and pull ring or pull tongue set up on the upper surface outer fringe of sealed lid, its characterized in that: the sealing cover is an aluminum foil sealing cover, an upward convex arched part is arranged in the middle of the aluminum foil sealing cover, and the outer edge of the aluminum foil sealing cover is attached to the opening edge of the cover body. The easy-to-tear can cover has high pressure resistance, can be suitable for pressure change during high-temperature sterilization, can not cause the situation of edge tearing during processing, effectively ensures air tightness, and can be torn off without force during use.

Description

High-temperature-resistant and sterilization can easy-to-tear cover

Technical Field

The utility model relates to an easily tear lid, in particular to easily tear lid with a high temperature resistant canned food that disinfects.

Background

Food cans are generally used for packaging food such as cans and milk which needs to be preserved for a long time, the structure of the food can generally comprises a can body and a can cover, the can body and the can cover are respectively processed and finally buckled, and the can body has good preservation and sealing performance. The can cover is generally provided with a pull ring or a pull tongue, and when the can is eaten, the area formed by the nicks on the can cover can be separated from the can cover by pulling the pull ring or the pull tongue, so that the can be eaten after being opened. However, the can cover is difficult to open, requires a large force to open, has a sharp edge at the opening, and is easy to scratch hands when opening.

Aiming at the problem of easy hand scraping of the structure, manufacturers develop an easy-to-tear cover product consisting of an aluminum foil for pulling apart the cover instead of an easy-to-pull cover. However, most of the food cans need to be sterilized at high temperature and the like, the can cover is required to be ultra-high and pressure-resistant in the process, and the ordinary aluminum foil easily tears the cover when being sterilized at high temperature, so that the cover easily bulges due to the fact that the pressure inside the can body is higher than the pressure outside the can body, and the tearing condition of the nick edge is caused, and the requirements cannot be met.

Disclosure of Invention

The utility model aims to solve the technical problem that a high temperature resistant sterilization's can easily tears lid is provided, and this kind of can easily tears and covers compressive strength is higher, and the pressure change when can be suitable for high temperature sterilization can not appear the tearing condition in edge man-hour, effectively guarantees the gas tightness to can tear easily when using.

In order to solve the technical problems, the technical scheme is as follows:

high temperature resistant sterilizing's can easily tears lid, including lid and easy-open part, be equipped with the opening in the lid, easy-open part is including sealed lid and pull ring or pull tab, and sealed lid covers the opening, and pull ring or pull tab setting are on the upper surface outer fringe of sealed lid, its characterized in that: the sealing cover is an aluminum foil sealing cover, an upward convex arched part is arranged in the middle of the aluminum foil sealing cover, and the outer edge of the aluminum foil sealing cover is attached to the opening edge of the cover body.

In the easy-to-tear can cover, the sealing cover adopts the aluminum foil sealing cover, so that the aluminum foil sealing cover can be torn off from the cover body by applying a little force when the easy-to-tear can cover is used. Meanwhile, in the production process of the food can, in order to balance the pressure inside and outside the can body, the aluminum foil sealing cover is usually pre-pressed from above, and then the food can is sterilized at high temperature; when exerting pressure in advance, the sealed lid middle part of aluminium foil is concave downwards earlier, when carrying out pasteurization processing, the internal portion pressure of jar is crescent, thereby make the sealed lid middle part position of aluminium foil protruding again, owing to carried out earlier the arching in advance to the sealed middle part of lid of aluminium foil when production, therefore sealed lid is no matter concave down under the effect of exerting pressure in advance, or pasteurization's process epirelief, the arch portion at sealed lid middle part all provides sufficient deformation space, can not lead to the fact the influence to sealed lid edge, make sealed lid edge can not break away from on the lid. Therefore, the easily-torn cover has high compressive strength, can adapt to pressure change during high-temperature sterilization, cannot cause the situation of edge tearing during processing, and can ensure the air tightness of the food can.

In the preferred scheme, the cover body inner edge is turned inwards and downwards to form an arc-shaped surface, the edge of the arc-shaped surface is provided with an annular surface extending inwards, and the outer edge of the aluminum foil sealing cover is connected with the annular surface. The lid inward flange turns over to the inboard side down, can avoid the product at encapsulation, transportation and storage in-process, the sealed lid of aluminium foil is owing to receive external force and be opened.

In a further preferred scheme, the lower surface of the outer edge of the aluminum foil sealing cover is adhered to the upper surface of the annular surface through a glue layer.

In a preferable scheme, the cover body is made of tinplate.

The beneficial effects of the utility model reside in that: the can easy-to-tear cover has high pressure resistance, can adapt to pressure change during high-temperature sterilization, cannot cause the condition of edge tearing during processing, can ensure the air tightness of a food can, and is convenient to tear when in use.

Drawings

Fig. 1 is a schematic structural view of a can easy-to-tear cover in embodiment 1 of the present invention;

FIG. 2 is a cross-sectional view taken along direction A of FIG. 1;

fig. 3 is a schematic structural view of a can easy-to-tear cover in embodiment 2 of the present invention.

Detailed Description

The invention will be further described with reference to the following drawings and specific embodiments:

example 1

The easy-to-tear can lid with high-temperature sterilization resistance shown in fig. 1-2 comprises a lid body 1 and an easy-to-open part 2, an opening is formed in the lid body 1, the easy-to-open part 2 comprises an aluminum foil sealing cover 201 and a pull ring 202, the aluminum foil sealing cover 201 covers the opening, the pull ring 202 is arranged on the outer edge of the upper surface of the aluminum foil sealing cover 201, an upward convex arch part 2011 is arranged in the middle of the aluminum foil sealing cover 201, the inner edge of the lid body 1 is turned downwards to the inner side to form an arc-shaped surface 101, an inwardly extending annular surface 1011 is arranged at the edge of the arc-shaped surface 101, and the lower surface of the outer edge of the aluminum foil sealing cover 201 is bonded with the upper surface of the annular surface 1011 through a glue layer.

In the easy-to-tear can cover, the aluminum foil sealing cover 201 is adopted, so that the aluminum foil sealing cover 201 can be torn off from the cover body 1 by applying a slight force when the easy-to-tear can cover is used. Meanwhile, in the production process of the food can, in order to balance the pressure inside and outside the can body, the aluminum foil sealing cover 201 is usually pre-pressed from above, and then the food can is sterilized at high temperature; when exerting pressure in advance, the middle part of the sealed lid 201 of aluminium foil is concave downwards earlier, when carrying out pasteurization treatment, the internal pressure intensity of jar increases gradually, thereby make sealed lid 201 of aluminium foil middle part position protruding again, because the middle part to sealed lid 201 of aluminium foil has carried out earlier when production and has encircleed the processing in advance, consequently sealed lid 201 of aluminium foil is concave down no matter under the effect of exerting pressure in advance, or pasteurization's process epirelief, the arch 2011 at sealed lid 201 of aluminium foil middle part has all provided sufficient deformation space, can not cause the influence to sealed lid 201 edge of aluminium foil, make sealed lid 201 of aluminium foil edge can not break away from lid 1. Therefore, the easily-torn cover has high compressive strength, can adapt to pressure change during high-temperature sterilization, cannot cause the situation of edge tearing during processing, and can ensure the air tightness of the food can.

The cover body 1 is made of tinplate.

Example 2

The present embodiment differs from the embodiment in that: the easy opening part 2 ' comprises a foil sealing lid 201 ' and a pull tab 202 '.

Claims

1. High temperature resistant sterilizing's can easily tears lid, including lid and easy-open part, be equipped with the opening in the lid, easy-open part is including sealed lid and pull ring or pull tab, and sealed lid covers the opening, and pull ring or pull tab setting are on the upper surface outer fringe of sealed lid, its characterized in that: the sealing cover is an aluminum foil sealing cover, an upward convex arched part is arranged in the middle of the aluminum foil sealing cover, and the outer edge of the aluminum foil sealing cover is attached to the opening edge of the cover body.

2. The autoclavble lid of claim 1, further comprising: the internal edge of lid turns over downwards to the inboard and forms the arcwall face, and the edge of arcwall face is equipped with the annular face of inside extension, the outward flange and the annular face of sealed lid of aluminium foil are connected.

3. The autoclavble lid of claim 2, further comprising: the lower surface of the outer edge of the aluminum foil sealing cover is bonded with the upper surface of the annular surface through a glue layer.

4. The autoclavble lid of claim 1, further comprising: the cover body is made of tinplate.