CN202967034U

CN202967034U - Box body-box bottom seaming structure of food box

Info

Publication number: CN202967034U
Application number: CN 201220614500
Authority: CN
Inventors: 张筱
Original assignee: DONGGUAN JINGLI CAN Co Ltd
Current assignee: DONGGUAN JINGLI CAN Co Ltd
Priority date: 2012-11-20
Filing date: 2012-11-20
Publication date: 2013-06-05
Anticipated expiration: 2022-11-20

Abstract

The utility model discloses a box body-box bottom seaming structure of a food box, mainly relates to a bottom cover structure of the food box and in particular relates to a bottom cover seaming structure of a three-piece barrel tank. The box body-box bottom seaming structure comprises a box body and a box bottom, wherein a plastic film is arranged at the rolled edge of the outer bottom surface of the box bottom; and the plastic film and the rolled edge of the box body are sealed together with the rolled edge of the box bottom. According to the box body-box bottom seaming structure of the food box disclosed by the utility model, the non-toxic plastic film is arranged at the rolled edge of the outer bottom surface of the box bottom, and the plastic film has good ductility and elasticity during the sealing process, so that the seams of the seaming structure can be filled, thereby ensuring the tightness of the seaming structure, avoiding the pollution and avoiding harmful effects to the human body and the environment.

Description

Seaming structure at the bottom of food box box body box

Technical field

At the bottom of the utility model food box box body box, the seaming structure relates generally to the bottom seaming structure of bottom cover structure, especially three barrel cages of food box.

Background technology

Traditional food box tank such as Fig. 1 are shown in Figure 2, its box body 2 with at the bottom of box 1 in the seaming process, all want oiling or waxing at rim roll 21 places of

box body

2 and 1 rim roll 11 places at the bottom of box, allowing wax be full of gap 3 in the seaming process, the leak tightness of assurance seaming structure.Adopt this curling and sealing method operation many, trivial operations; And the materials such as the oil that this curling and sealing method uses or wax generally all contain objectionable impurities, can separate out gradually in the seaming process and in later on use procedure and pollute the box body, and then pollute food in box.Thereby can produce deleterious effect to human body and environment, the serious consequence that this problem causes has caused attention both domestic and external.

The utility model content

The purpose of this utility model just is to provide seaming structure at the bottom of a kind of novel food box box body box, and it has overcome the defective of prior art, can guarantee the leak tightness of seaming structure, does not pollute, and can not produce deleterious effect to human body and environment.

Seaming structure at the bottom of the utility model food box box body box at the bottom of comprising box body and box, is characterized in that there is plastic film at the outer bottom rim roll place at the bottom of described box, described plastic film with box at the bottom of rim roll and box body rim roll seaming.

Seaming structure at the bottom of above-mentioned food box box body box, the plastic film at the outer bottom rim roll place at the bottom of described box sticks to the outer bottom at the bottom of box.

Seaming structure at the bottom of above-mentioned food box box body box, there is plastic film at the inner face rim roll place of described box body.

Seaming structure at the bottom of above-mentioned food box box body box, the plastic film at the inner face rim roll place of described box body sticks to the inner face of box body.

Seaming structure at the bottom of employing the utility model food box box body box, there is nontoxic plastic film at outer bottom rim roll place at the bottom of box, because of plastic film, good ductility and elasticity are arranged in the seaming process, therefore can fill the gap of seaming structure, thereby guarantee the leak tightness of seaming structure, also pollution can be do not produced, also deleterious effect can be do not produced to human body and environment.

Description of drawings

Fig. 1 is prior art food box box body box bottom structure.

Fig. 2 is partial enlarged drawing shown in Figure 1.

Fig. 3 is that the seaming structure is once withheld partial schematic diagram at the bottom of the utility model food box box body box.

Fig. 4 is that secondary shown in Figure 3 is withheld partial schematic diagram.

The specific embodiment

Below in conjunction with accompanying drawing to the utility model food box box body box at the bottom of the seaming structure be described in further detail:

See Fig. 3, shown in Figure 4, seaming structure embodiment at the bottom of the utility model food box box body box, comprise at the bottom of box body 6 and box 7, there is nontoxic plastic film 8 at the outer bottom place of rim roll 71 at the bottom of 7 box at the bottom of described box, and described plastic film 8 can adhere to each other with 7 outer bottom at the bottom of described box.As shown in Figure 3, described plastic film 8 is with rim roll at the bottom of box 71 and box body rim roll 81 seaming on punch die, and this is for once withholding, and withhold unreal this moment, and the gap is larger.On this basis, implement secondary and withhold on the secondary punch die, as shown in Figure 4, have preferably ductility and elasticity because of plastic film 8 this moment, thus can fill the gap of extruding seaming structure, thus guarantee the leak tightness of seaming structure.Because plastic film 8 adopts nontoxic material, also can not produce pollution, also can not produce deleterious effect to human body and environment.

For seaming structure embodiment at the bottom of above-mentioned the utility model food box box body box, at the bottom of described box, 7 whole outer bottom can be stained with plastic film 8, and not only only limits at the bottom of box rim roll 71 places, as 7 adopting film-covered irons at the bottom of box.Box body rim roll 81 place's inner faces of certain described box body 8 also can have plastic film, so in the seaming process at the bottom of box the plastic film seaming of the plastic film of rim roll and box body rim roll press together, can greatly strengthen the leak tightness of seaming structure.

Claims

1. seaming structure at the bottom of food box box body box at the bottom of comprising box body and box, is characterized in that there is plastic film at the outer bottom rim roll place at the bottom of described box, described plastic film with box at the bottom of rim roll and box body rim roll seaming.

2. seaming structure at the bottom of food box box body box according to claim 1, the plastic film that it is characterized in that the outer bottom rim roll place at the bottom of described box sticks to the outer bottom at the bottom of box.

3. seaming structure at the bottom of food box box body box according to claim 1 and 2 is characterized in that there is plastic film at the inner face rim roll place of described box body.

4. seaming structure at the bottom of food box box body box according to claim 3 is characterized in that the plastic film at the inner face rim roll place of described box body sticks to the inner face of box body.