CN220743438U - Cup body sealing film and cup - Google Patents

Abstract

The utility model discloses a cup body sealing film which is used for sealing a cup body and comprises an annular heat sealing part and an inner concave part, wherein the annular heat sealing part is used for being in heat sealing connection with a cup opening of the cup body, the inner concave part is positioned on the radial inner side of the heat sealing part, and the inner concave part is sunken downwards relative to the annular heat sealing part and is used for extending into a containing cavity of the cup body when the cup body is sealed. The sealing film of the cup body can reduce the top gap of the cup mouth after the cup body is sealed.

Description

Cup body sealing film and cup

Technical Field

The utility model relates to the technical field of sealing film sealing packaging, in particular to a cup body sealing film and a cup.

Background

The sealing film is mainly used for sealing the cup, prevents the volatilization and pollution of the content of the product, and can effectively isolate the influence of oxygen and water vapor of air on the content. The shape of the common sealing film is a plane structure, and the heat sealing area of the sealing film contacts with the cup mouth during heat sealing, so that the sealing of the cup body is realized under certain temperature, time and pressure. When the product is filled, in order to prevent the product from overflowing and polluting the cup mouth, the filling liquid level of the product is usually lower than the cup mouth, a cup mouth top gap is formed, and after the cup mouth top gap is overlarge, too much residual oxygen exists in the cup body sealed by the planar sealing film, so that the quality guarantee period of the product is directly influenced.

Disclosure of Invention

The utility model aims to provide a cup body sealing film capable of reducing a cup opening top gap after a cup body is sealed and a cup using the cup body sealing film.

The utility model discloses a cup body sealing film which is used for sealing a cup body and comprises an annular heat sealing part and an inner concave part, wherein the annular heat sealing part is used for being in heat sealing connection with a cup opening of the cup body, the inner concave part is positioned on the radial inner side of the heat sealing part, and the inner concave part is sunken downwards relative to the annular heat sealing part and is used for extending into a containing cavity of the cup body when the cup body is sealed.

In some embodiments, the edges of the dimples are each directly connected to the heat seal.

In some embodiments, the surface shape of the surface of the heat seal that contacts the cup when sealing the cup matches the surface shape of the upper surface of the cup opening of the cup prior to heat sealing connection with the cup.

In some embodiments, the concave portion includes a concave bottom surface at the middle portion that extends into the receiving cavity of the cup when the cup is sealed, the concave bottom surface having a circular surface, an elliptical surface, or a polygonal surface.

In some embodiments, the concave surface is connected to the heat seal by a tapered surface.

In some embodiments, the sealing device further comprises a plurality of tearing lugs arranged at intervals and positioned on the radial outer side of the heat sealing part, wherein the tearing lugs are used for tearing the sealing film of the cup body from the cup body after the sealing film of the cup body is connected with the cup body in a sealing way.

In some embodiments, the tear tab portion extends radially outward of the heat seal portion, and the tear tab portion is rectangular, arcuate, or triangular in shape.

In some embodiments, the cup sealing film comprises an aluminum foil layer and a heat sealing layer positioned below the aluminum foil layer, wherein the aluminum foil layer is used for fixing the shape of the cup sealing film, and the heat sealing layer is used for being in sealing connection with the cup.

In some embodiments, the cup sealing film further comprises a printed layer over the aluminum foil layer.

The utility model also discloses a cup, which comprises a cup body and any cup body sealing film, wherein the cup body sealing film is in sealing connection with a cup mouth of the cup body, and an inner concave part of the cup body sealing film extends into a containing cavity of the cup body.

Based on the cup body sealing film provided by the utility model, when the cup body is sealed, the concave part of the cup body sealing film can extend into the accommodating cavity of the cup body, so that the top clearance space of the cup body can be reduced, the oxygen residue can be reduced, and the quality guarantee period of a product can be prolonged.

Other features of the present utility model and its advantages will become apparent from the following detailed description of exemplary embodiments of the utility model, which proceeds with reference to the accompanying drawings.

Drawings

The accompanying drawings, which are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this application, illustrate embodiments of the utility model and together with the description serve to explain the utility model and do not constitute a limitation on the utility model. In the drawings:

FIG. 1 is a schematic view of a sealing film for a cup body according to an embodiment of the present utility model;

FIG. 2 is a schematic view of the sealing film of the cup shown in FIG. 1 at another angle;

fig. 3 is a schematic structural view of a cup according to an embodiment of the present utility model.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. The following description of at least one exemplary embodiment is merely exemplary in nature and is in no way intended to limit the utility model, its application, or uses. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

The relative arrangement of the components and steps, numerical expressions and numerical values set forth in these embodiments do not limit the scope of the present utility model unless it is specifically stated otherwise. Meanwhile, it should be understood that the sizes of the respective parts shown in the drawings are not drawn in actual scale for convenience of description. Techniques, methods, and apparatus known to one of ordinary skill in the relevant art may not be discussed in detail, but are intended to be part of the specification where appropriate. In all examples shown and discussed herein, any specific values should be construed as merely illustrative, and not a limitation. Thus, other examples of the exemplary embodiments may have different values. It should be noted that: like reference numerals and letters denote like items in the following figures, and thus once an item is defined in one figure, no further discussion thereof is necessary in subsequent figures.

In the description of the present utility model, it should be understood that the terms "first," "second," and the like are used for defining the components, and are merely for convenience in distinguishing the corresponding components, and the terms are not meant to have any special meaning unless otherwise indicated, so that the scope of the present utility model is not to be construed as being limited.

In the description of the present utility model, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be directly connected or indirectly connected through an intermediate medium. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.

Spatially relative terms, such as "above … …," "above … …," "upper surface at … …," "above," and the like, may be used herein for ease of description to describe one device or feature's spatial location relative to another device or feature as illustrated in the figures. It will be understood that the spatially relative terms are intended to encompass different orientations in use or operation in addition to the orientation depicted in the figures. For example, if the device in the figures is turned over, elements described as "above" or "over" other devices or structures would then be oriented "below" or "beneath" the other devices or structures. Thus, the exemplary term "above … …" may include both orientations of "above … …" and "below … …". The device may also be positioned in other different ways (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.

As shown in fig. 1 to 3, the cup sealing film of the present embodiment is used for sealing a cup. The cup sealing film comprises an annular heat sealing part 2 and an inner concave part 1. The annular heat-seal part 2 is used for heat-sealing connection with the cup opening of the cup body, the inner concave part 1 is positioned on the radial inner side of the heat-seal part 2, and the inner concave part 1 is sunken downwards relative to the annular heat-seal part 2 and is used for extending into the accommodating cavity of the cup body when the cup body is sealed. The utility model takes the matching of the cup body sealing film and the cup body, the cup body is vertically placed, and the cup mouth is upwards oriented along the vertical direction as a reference, at the moment, the cup mouth of the cup body is positioned above the cup bottom of the cup body, the cup bottom is positioned below the cup mouth, the matching of the cup body sealing film and the cup body means that the cup body sealing film is already connected with the cup body through heat sealing or is positioned at a position to be in heat sealing connection with the cup body, at the moment, the concave part is downwards sunken relative to the heat sealing part 2, so that when the cup body sealing film seals the cup body, the concave part 1 stretches into the accommodating cavity of the cup body. The accommodating cavity of the cup body refers to a cavity which is surrounded by the cup body and used for accommodating products such as liquid and the like.

The inner concave part 1 of the sealing film of the cup body can extend into the accommodating cavity of the cup body when the cup body is sealed, so that the top clearance space of the cup body can be reduced, oxygen residues can be reduced, and the quality guarantee period of products can be prolonged.

In some embodiments, the edges of the dimples 1 are each directly connected to the heat seal 2. Namely, the inner concave part 1 is sunken downwards relative to the heat sealing part 2 from the edge of the inner concave part, and in the process of aligning the sealing cup body with the cup mouth, the inner concave part 1 and the cup mouth are matched to guide the positioning of the cup body sealing film, so that the cup body sealing film can be positioned relative to the cup mouth rapidly and accurately.

In some embodiments, the surface shape of the surface of the heat seal 2 that contacts the cup when sealing the cup matches the surface shape of the upper surface of the cup opening of the cup prior to heat sealing connection with the cup. That is, the annular upper surface of the cup opening is a plane, the part of the heat-sealing part 2 corresponding to the upper surface of the cup opening is a plane, the annular upper surface of the cup opening is an arc surface, the part of the heat-sealing part 2 corresponding to the upper surface of the cup opening is an arc surface, and the heat-sealing part 2 of the embodiment can be effectively and well heat-sealed and connected with the shape of the cup opening.

In some embodiments, as shown in fig. 1 to 3, the concave portion 1 includes a concave bottom surface 11 at the middle, the concave bottom surface 11 extending into the receiving cavity of the cup body when the cup body is sealed, and the concave bottom surface 11 has a circular surface, an elliptical surface, or a polygonal surface. The shape of the concave bottom surface 11 can correspond to the shape of the cup opening.

In some embodiments, the concave surface is connected to the heat seal 2 by a tapered surface 12, as shown. The concave part of the sealing film of the cup body can provide a better guiding effect on the accurate positioning of the heat sealing part.

In some embodiments, the cup closure film further comprises a plurality of tearing ears 3 spaced radially outward of the heat seal 2, the tearing ears 3 being configured to tear the cup closure film from the cup after the cup closure film is sealingly connected to the cup. After the cup body is sealed by the cup body sealing film, the cup body sealing film can be torn off from the cup body through tearing the tearing lug part 3 so as to open the seal of the cup mouth of the cup body. The plurality of tearing lugs 3 are arranged, so that the sealing film of the cup body can be conveniently torn off from the cup mouth.

In some embodiments, the tearing ear portion 3 protrudes radially outward of the heat seal portion 2, and the tearing ear portion 3 has a rectangular, arc-shaped or triangular shape.

In some embodiments, the cup seal film comprises an aluminum foil layer for securing the shape of the cup seal film and a heat seal layer positioned below the aluminum foil layer for sealing connection with the cup. The aluminum foil layer has certain stiffness and ductility, and after the cup body sealing film is molded by the stamping die, the aluminum foil layer can enable the cup body sealing film to keep a concave structure provided with concave parts as shown in fig. 1. The material of the heat-seal layer may be polyethylene,

in some embodiments, the cup seal film further includes a print layer over the aluminum foil layer, the print layer being provided to facilitate placement of print information on the cup seal film. The printing layer may be made of polyethylene terephthalate or the like.

In some embodiments, a cup is also disclosed, the cup comprises a cup body and any one of the cup body sealing films, the cup body sealing film is in sealing connection with a cup mouth of the cup body, and an inner concave part 1 of the cup body sealing film extends into a containing cavity of the cup body.

Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present utility model and not for limiting the same; while the utility model has been described in detail with reference to the preferred embodiments, those skilled in the art will appreciate that: modifications may be made to the specific embodiments of the present utility model or equivalents may be substituted for part of the technical features thereof; without departing from the spirit of the utility model, it is intended to cover the scope of the utility model as claimed.

Claims (10)

1. The utility model provides a cup seal membrane for sealed cup, its characterized in that includes annular heat-seal portion and interior concave part, annular heat-seal portion is used for with the rim of a cup heat-seal connection of cup, interior concave part is located the radial inboard of heat-seal portion, interior concave part is relative annular heat-seal portion is sunken downwards for be used for stretching into when sealed cup the holding intracavity of cup.

2. The cup sealing film of claim 1 wherein the edges of the dimples are each directly connected to the heat seal.

3. The cup sealing film according to claim 2, wherein a surface shape of a surface of the heat seal portion which contacts the cup when the cup is sealed matches a surface shape of an upper surface of a cup opening of the cup before heat seal connection with the cup.

4. The cup sealing film of claim 1 wherein the concave portion includes a concave bottom surface in the middle portion, the concave bottom surface extending into the receiving cavity of the cup when the cup is sealed, the concave bottom surface having a circular surface, an elliptical surface, or a polygonal surface.

5. The cup sealing film of claim 4 wherein said concave surface is joined to said heat seal by a tapered surface.

6. The cup-sealing film of claim 1 further comprising a plurality of spaced apart tear-off ears radially outward of the heat seal for tearing the cup-sealing film from the cup after the cup-sealing film is sealingly connected to the cup.

7. The cup-sealing film of claim 6 wherein said tear-away ears extend radially outward of said heat-seal portion, said tear-away ears being rectangular, arcuate or triangular in shape.

8. The cup-sealing film of claim 1, wherein the cup-sealing film comprises an aluminum foil layer and a heat-sealing layer positioned below the aluminum foil layer, the aluminum foil layer being used to fix the shape of the cup-sealing film, the heat-sealing layer being used to seal with a cup.

9. The cup closure film of claim 8 for sealing a cup, further comprising a print layer over the aluminum foil layer.

10. A cup, comprising a cup body and a sealing film of any one of claims 1 to 9, wherein the sealing film is in sealing connection with a cup mouth of the cup body, and a concave part of the sealing film extends into a containing cavity of the cup body.