Aluminum foil box, heat sealing head for aluminum foil box, and heat sealing method
A technology of aluminum foil box and heat sealing head, which is applied in the directions of packaging sealing/fastening, rigid container, external support, etc., which can solve the problems of danger, bursting, etc., and achieve the effect of eliminating potential safety hazards
Pending Publication Date: 2018-07-27
NINGBO TIMES ALUMINUM FOIL MFG
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Problems solved by technology
However, the heat-sealing of the plastic film on the fast food box is very tight. Occasionally, the user forgets to open the easy-to-tear opening and directly puts the fast food box in a microwave oven for heating. Exploding directly, there is a certain danger
Method used
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[0024] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments.
[0025] see Figure 1 ~ Figure 3 As shown, the present invention provides an aluminum foil box, including an aluminum foil bottom plate 1, an aluminum foil peripheral side plate 2, and an open plane plate 3 that are sequentially stamped and stretched, wherein the aluminum foil peripheral side plate 2 is connected to the peripheral side of the aluminum foil bottom plate 1 On the side, the open planar plate 3 is connected to the opening of the aluminum foil peripheral side plate 2 , and the open planar plate 3 is provided with a through hole 4 .
[0026] In the aluminum foil box provided by the present invention, a through hole 4 is provided on the open plane plate 3 of the aluminum foil box, so that after the aluminum foil box is heat-sealed and pasted, the film at the through hole 4 on the open plane plate 3 is left empty. , the two sides of th...
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Abstract
The invention discloses an aluminum foil box. The aluminum foil box comprises an aluminum foil bottom plate, an aluminum foil peripheral side plate and an open plane plate which are sequentially formed by punching and stretching, wherein the aluminum foil peripheral side plate is connected to the peripheral side edge of the aluminum foil bottom plate, the open plane plate is connected to the openposition of the aluminum foil peripheral side plate, and through holes are formed in the open plane plate. The through holes are formed in the open plane plate, so that after a heat-sealing film is applied to the aluminum foil box, the film at each through hole position on the open plane plate is empty, and the two sides of the film correspondingly form two major heat-sealing positions of an innerheat-sealing ring and an outer heat-sealing ring. After continuously heating the aluminum foil box without tearing the film, hot gas breaks the slightly narrower inner heat-sealing ring from inside,and then the hot gas overflows from each through hole to release the pressure in the box to prevent the aluminum foil box from bursting. At this time, the outer heat-sealing ring is still in good condition to seal the aluminum foil box, and the potential safety hazard of heating explosion is eliminated.
Description
technical field [0001] The invention relates to the technical field of food packaging, in particular to an aluminum foil box, a heat sealing head for the aluminum foil box and a heat sealing method. Background technique [0002] With the continuous improvement of people's living standards and the quickening pace of life, fast food has become more and more popular among the masses. At present, many fast food boxes are heat-sealed with a layer of plastic film on the open plane, and are provided with an easy-tear opening. The fast food box burst open. However, the heat-sealing of the plastic film on the fast food box is very tight. Occasionally, the user forgets to open the easy-to-tear opening and directly puts the fast food box in a microwave oven for heating. Exploding directly, there is a certain degree of danger. Therefore, it is urgent to provide a fast food box with a more reasonable structural design, which will not burst even if the easy-tear opening is not opened d...
Claims
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IPC IPC(8): B65D1/40B65D1/34B65D77/20B65B51/14
CPCB65B51/14B65D1/34B65D1/40B65D77/20
Inventor 邬建明雷振管
Owner NINGBO TIMES ALUMINUM FOIL MFG