CN210942672U - Be applied to carton that holds edible material - Google Patents

Abstract

The utility model discloses a be applied to and hold carton of eating material, include the box body that forms by converting into of a whole card paper, the whole polygonized structure that is of box body, including being the diapire that polygonized structure and corner circular arc transition, connect the lateral wall on every border of diapire, connect the leg on every corner of diapire, and the lateral wall sets up with the leg is adjacent and connect into an organic whole, each leg all has an at least fold, be used for constituting the leg structure of arcuation transition and connect two adjacent lateral walls, the box body internal surface still covers through blister technology has the thin layer. Among its technical scheme, fold on the wall has reduced the card paper surplus that the in-process corner exists of converting into on the one hand, has solved the problem that has the seam and influence its leakproofness when current carton shaping inevitable, and on the other hand can effectively strengthen the structural strength of each corner position of box body, is difficult for damaging in the transport because of the edible material overweight that holds.

Description

Be applied to carton that holds edible material

Technical Field

The utility model relates to a paper cutlery box technical field especially relates to a be applied to and hold carton of eating material.

Background

With the acceleration of economic development and life rhythm, the lunch box is widely applied to daily life, and mainly comprises takeaway packaging and is used as a fresh-keeping appliance in a supermarket refrigerator. The current lunch boxes are mainly divided into lunch boxes made of plastic and lunch boxes made of paper materials, and with the enhancement of social environmental awareness, plastic materials are gradually eliminated due to the fact that the plastic materials are not in accordance with the sustainable development concept popularized nowadays due to the factors of non-reproducibility, high pollution and the like.

At present, paper cutlery box mainly forms or bonds into square or circular box body through one or more laminating membrane paper amalgamation each other, holds behind the edible material in the box body adhesion covering film and constitutes the preservation box. But because the laminating paper has a seam inevitably in the process of splicing the box body, the food materials contained in the box body are easy to bend when overheated or overweight, and a visible or invisible gap appears at the seam, so that the sealing property is greatly reduced, and the food materials are easy to be invaded into the lunch box by bacteria when the lunch box is stored for a long time to damage the freshness of the food materials.

SUMMERY OF THE UTILITY MODEL

To the above-mentioned problem that exists among the prior art, provide one kind now and aim at solving the problem that has the seam and influence the leakproofness when current carton shaping and effectively strengthen the carton of being applied to that of the structural strength of each corner position of box body and holding the edible material for overcome above-mentioned technical defect.

The specific technical scheme is as follows:

the utility model provides a be applied to and hold carton of eating material, include the box body that forms by converting into a whole card paper, the whole polygonized structure that is of box body, including the diapire that is polygonized structure and corner circular arc transition, connect the lateral wall on every border of diapire, connect the leg on every corner of diapire, and the lateral wall sets up and connects into an organic whole with the leg is adjacent, each leg all has an at least fold, be used for constituting the leg structure of arcuation transition and connect two adjacent lateral walls, the box body internal surface still covers through blister technology has the thin layer.

Preferably, the upper edge of the box body is also provided with a flange formed by folding the side wall and the surrounding wall outwards together.

Preferably, the joint of the side wall and the bottom wall and the joint of the surrounding wall and the bottom wall are provided with crease lines.

Preferably, the base wall, side walls and peripheral wall are integral.

Preferably, the box body is of a quadrilateral structure, and the number of the bottom wall and the side walls is four.

Preferably, on each wall, the number of the folds is multiple, and the multiple folds are arranged on the wall in a spoke shape.

Preferably, the middle part of the bottom wall is also upwards protruded to form a boss structure.

Preferably, the food storage box further comprises a cover film, wherein the cover film is adhered to the upper surface of the box body and is integrally adhered with the thin film layer, and food materials and inert gas are stored in a storage space defined by the thin film layer and the cover film.

The beneficial effects of the above technical scheme are that:

be applied to carton that holds edible material and include the box body, the box body includes the diapire, lateral wall and leg, the fold has on the leg, make can directly convert into the carton that forms with a whole card paper of predetermineeing the size, fold on the leg has reduced the card paper surplus that the in-process corner exists of converting into on the one hand, there is the seam to influence the problem of its leakproofness when having solved current carton shaping in the inevitable, on the other hand can effectively strengthen the structural strength of each corner position of box body, be difficult for damaging in the transport because of the edible material overweight that holds.

Drawings

Fig. 1 is a perspective view of the present invention applied to a carton for holding food materials;

FIG. 2 is a top view of the present invention applied to a carton for holding food material;

FIG. 3 is an expanded view of the structure of the carton for holding food material of the present invention;

fig. 4 is a schematic view of a partial cross-sectional structure of another embodiment of the carton for containing food materials of the present invention.

Detailed Description

In order to make the technical means, creation features, achievement purposes and effects of the present invention easy to understand, the following embodiments are specifically illustrated in conjunction with the accompanying drawings.

In the first embodiment, the first step is,

referring to fig. 1 to 3 in show, the utility model provides a be applied to and hold carton of eating material includes the box body that forms by folding into a whole card paper 7, and the whole polygonized structure that is of box body, including the diapire 1 that is polygonized structure and corner circular arc transition, connect lateral wall 2 on every border of diapire 1, connect leg 3 on every corner of diapire 1, and lateral wall 2 and the adjacent setting of leg 3 link into an integrated entity, each leg 3 all has an at least fold 4, be used for constituting leg 3 structure and two adjacent lateral walls 2 of arcuation transition.

Based on above-mentioned technical scheme, be applied to the carton that holds edible material and include the box body, the box body includes diapire 1, lateral wall 2 and leg 3, fold 4 has on the leg 3, make can directly convert into a whole piece of card paper 7 of predetermineeing the size and form the box body, fold 4 on the leg 3 has reduced the card paper 7 surplus that the in-process corner exists on the one hand, there is the seam to influence the problem of its leakproofness when having solved current carton shaping in difficult the avoidance, on the other hand can effectively strengthen the structural strength of each corner position of box body, be difficult for damaging in the transport because of the edible material overweight that holds.

In a preferred embodiment, the inner surface of the box body is further covered with a thin film layer (not shown in the drawing) through a plastic uptake process, so that the box body has a fresh-keeping function, and when the box body is used specifically, food materials are placed inside the box body, and a cover film is further adhered to the upper surface of the box body, so that the fresh-keeping function can be realized. Furthermore, still outwards turn over by lateral wall 2 and leg 3 jointly and be formed with turn-ups 6 in the upper limb of box body to the cover of thin layer and epiphragma, strengthen the bulk strength of box body simultaneously. Furthermore, the joint of the side wall 2 and the bottom wall 1 and the joint of the surrounding wall 3 and the bottom wall 1 are provided with crease lines so as to fold the cardboard 7 into a box body. It is clear that, as shown in figure 3, the bottom wall 1, the side walls 2 and the peripheral wall 3 are integral.

As a further preferred embodiment, the box body is a quadrilateral structure, and the number of the bottom wall 1 and the side walls 2 is four, but obviously, the box body can also be a plurality of structures such as a trilateral structure, a pentagonal structure, a hexagonal structure, etc., as long as the cardboard 7 is preset and cut into corresponding polygons, and the surrounding wall 3 is folded by the folds 4, so as to be folded into a corresponding polygonal box body. Further, as shown in fig. 1 and 2, on each wall 3, there are a plurality of pleats 4, and the plurality of pleats 4 are arranged on the wall 3 in a spoke shape, so that the wall 3 has high and uniform structural strength. Further, the middle part of the bottom wall 1 is also upwards protruded to form a boss structure 5 so as to enhance the strength of the bottom wall 1. Further, the periphery of the film layer is bonded on the flanging 6, the carton further comprises a cover film, and the periphery of the cover film is bonded on the upper surface of the periphery of the film layer. Furthermore, the film layer and the cover film are both made of EVOH materials, and have a high-barrier effect. And when the food fresh-keeping device is used specifically, food materials and inert gas (preferably nitrogen gas) are stored in the storage space enclosed by the thin film layer and the cover film, so that the fresh-keeping period of the food materials can be effectively prolonged. Specifically, in the operation of adhering the cover film, the food is placed in the storage space by the equipment and the gas in the storage space is replaced by nitrogen, so that on one hand, a sealed food storage space is formed between the thin film layer and the cover film, on the other hand, the inert gas replaces the common air, the food is isolated from the oxygen, and the quality guarantee period of the food is effectively prolonged.

Specifically, the above-mentioned blister process mainly includes:

step a, cutting a paperboard 7 into a shape as shown in fig. 3, folding the paperboard into a box body, placing the box body in a plastic suction mold on a plastic suction station, taking a film coil material as a sheet material, tensioning the film coil material above the box body, and heating and softening the film coil material by a heating assembly above the film coil material; preferably, the lower surface of the film roll is provided with glue or glue is applied on the flanging 6 of the box body, so that the viscosity is better in a heating state.

B, carrying out vacuum forming operation on the film coil stock by using air-extracting equipment arranged in a vacuum forming station through a gap (the gap can also be formed by directly forming an air-extracting hole on the bottom wall so as to strengthen the vacuum forming capability) which is invisible to naked eyes due to the existence of the paperboard 7, wherein the film coil stock is tightly attached to the box body downwards under the action of the air-extracting equipment so as to form a film layer; the suction port of the air extraction equipment can be arranged at any position outside the box body;

and c, further performing hot pressing or ultrasonic bonding operation on the peripheral edge of the film bonded on the edge.

In addition, the covering film is mainly attached by pressing and heating equipment, the covering film is pressed on the film layer, and then the covering film and the film layer are combined into a whole by heating and melting to realize the sealing effect.

In the second embodiment, the first embodiment of the method,

with reference to fig. 4, the content and structure of the carton for containing food materials provided in this embodiment are substantially the same as those of the above-mentioned embodiment, except that in this embodiment, the outer edge of the flange 6 is further turned downward to form a curled edge 8, so that the strength of the edge of the carton can be greatly enhanced, and the problem of side indent caused by enclosing the cover film and exhausting and replacing air during specific use can be avoided. Further, the curl 8 is spiral as a whole in the longitudinal sectional direction, but it is obvious that the degree of spiral of the curl 8 may be changed depending on the size of the whole case, and it may be curled only once or may be curled plural times to form the form as shown in fig. 4. The arrangement can effectively prevent the situation that the boxes can not be separated due to the overlapping of the air tightness problem when the boxes are overlapped and packaged, and the use is more convenient.

The foregoing is only a preferred embodiment of the present invention, which is illustrative, not limiting. Those skilled in the art will appreciate that many variations, modifications, and equivalents may be made thereto without departing from the spirit and scope of the invention as defined by the appended claims.

Claims (10)

1. The carton is characterized by comprising a carton body formed by folding a whole piece of paperboard (7), wherein the whole carton body is of a polygonal structure and comprises a bottom wall (1) which is of a polygonal structure and has corner circular arc transition, side walls (2) connected to each edge of the bottom wall (1) and a peripheral wall (3) connected to each corner of the bottom wall (1), the side walls (2) and the peripheral walls (3) are adjacently arranged and connected into a whole, each peripheral wall (3) is provided with at least one fold (4) for forming a peripheral wall structure of arc transition and connecting two adjacent side walls (2); the inner surface of the box body is also covered with a thin film layer through a plastic uptake process.

2. A carton for food material as claimed in claim 1, wherein the upper edge of the body is further formed with a flange (6) formed by the side wall (2) and the peripheral wall (3) together being folded outwardly.

3. Carton for food material, as in claim 1, characterized in that said side walls (2) and said peripheral wall (3) are provided with embossing lines at the junction with said bottom wall (1) and at the junction with said bottom wall (1).

4. A carton as claimed in claim 3, characterized in that said bottom wall (1), side walls (2) and peripheral wall (3) are integral.

5. The carton for containing food materials as claimed in claim 1, wherein the overall box body has a quadrangular structure, and the number of the bottom wall (1) and the side walls (2) is four.

6. A carton as claimed in claim 1, and adapted for containing foodstuff, wherein said number of pleats (4) per said peripheral wall (3) is plural, and a plurality of said pleats (4) are arranged in spoke-like fashion on said peripheral wall (3).

7. A carton as claimed in claim 1, and adapted to contain foodstuff, wherein the bottom wall (1) is further formed with a raised boss (5) projecting upwardly from the central portion thereof.

8. The carton for containing food materials according to claim 1, further comprising a cover film (9) adhered to the upper surface of the box body and integrally adhered to the film layer, wherein the storage space enclosed by the film layer and the cover film stores food materials and inert gas.

9. Carton for food material, according to claim 2, characterized in that the outer edge of said flange (6) is further curled downwards to form a curled edge (8).

10. Carton for containing food material according to claim 9, characterized in that said curl (8) is overall helical in longitudinal section.

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