Cup opening sealing structure and cup

Abstract

The utility model belongs to the technical field of cup rim sealing, and discloses a cup rim sealing structure and a cup. The cup opening sealing structure comprises a protruding edge, the protruding edge is arranged on the upper surface of the cup edge of the cup in a protruding mode, the plastic deformation amount of the protruding edge is larger than that of the cup edge, and the protruding edge can generate plastic deformation in the heat sealing process to form a closed sealing structure. According to the utility model, the convex edge protrudes out of the upper surface of the cup edge, so that the thickness of the cup edge is increased, the problem that a hot-pressing sealing plane is not parallel due to deformation of a hot-melting sealing mechanism of a production line can be counteracted during heat sealing, and the problems that heat sealing is not tight and a sealing ring surface is incomplete are solved.

Description

Technical Field

[0001] This utility model relates to the field of cup rim sealing technology, and in particular to a cup rim sealing structure and a cup. Background Technology

[0002] For ice cream or yogurt products, plastic cups are generally used, with a rim thickness of about 1mm. Figure 1 and Figure 2 As shown, during the sealing process of cup 100, the rim 101 of cup 100 is first supported on cup holder 200, and the heat sealing film 400 is pressed onto the rim 101 by the heat sealing head 300 of the heat sealing equipment for heat sealing. In the prior art, the rim 101 does not have compressible elasticity, and its surface is planar. During the heat sealing of the film 400, the heat sealing head 300, the rim 101, and the cup holder 200 need to be pressed together. However, it is difficult to maintain perfect parallelism between the three planes in actual operation, often resulting in some areas of the heat sealing film 400 on cup 100 not being fully bonded to the rim 101, leading to problems such as incomplete or loose sealing, and wasting ice cream liquid and packaging materials. Utility Model Content

[0003] The purpose of this invention is to provide a cup mouth sealing structure and a cup to solve the problem of incomplete heat sealing of the cup mouth.

[0004] To achieve this objective, the present invention adopts the following technical solution:

[0005] A cup rim sealing structure includes a protruding ridge, which protrudes from the upper surface of the cup rim. The plastic deformation of the protruding ridge is greater than that of the cup rim, and the protruding ridge can undergo plastic deformation during heat sealing to form a closed sealing structure.

[0006] In some embodiments, the protruding ridges are made of the same material as the heat-sealing film.

[0007] In some embodiments, the protruding ridge is made of PET.

[0008] In some embodiments, the cross-sectional dimensions of the convex ridge gradually decrease from the upper surface of the cup rim to a direction away from the upper surface.

[0009] In some embodiments, the cross-section of the protruding ridge is triangular or trapezoidal.

[0010] In some embodiments, the protruding ridge is a closed-structure ring, a regular polygon, or a petal shape.

[0011] In some embodiments, a plurality of protruding ridges are provided, and the plurality of protruding ridges are spaced apart along the upper surface of the cup rim and distributed in concentric rings.

[0012] In some embodiments, multiple protrusions are provided, and the multiple protrusions are evenly spaced along the circumferential rim of the cup. Any two adjacent protrusions are staggered, and the two adjacent protrusions undergo plastic deformation and connect during heat sealing.

[0013] A cup, including the cup mouth sealing structure provided by this utility model.

[0014] The beneficial effects of this utility model are:

[0015] The cup-mouth sealing structure provided by this utility model includes a protruding ridge on the upper surface of the cup rim, and the plasticity of the ridge is greater than that of the cup rim. The ridge can undergo plastic deformation during heat sealing to form a closed sealing structure and achieve a seal. The ridge protrudes from the upper surface of the cup rim, increasing the thickness of the cup rim. During heat sealing, it can offset the problem of non-parallel hot-pressing sealing plane caused by the deformation of the hot-melt sealing mechanism of the production line, thereby solving the problems of incomplete heat sealing and incomplete sealing ring surface.

[0016] The cup provided by this utility model includes a cup mouth sealing structure. The cup mouth sealing structure increases the thickness of the cup rim, which can offset the problem of non-parallel hot-press sealing plane caused by the deformation of the hot-melt sealing mechanism of the production line during heat sealing, thereby solving the problems of incomplete heat sealing and incomplete sealing ring surface. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the heat-sealing structure of a cup in the prior art;

[0018] Figure 2 yes Figure 1 Enlarged structural diagram of region A in the middle;

[0019] Figure 3 This is a schematic diagram of the cup mouth sealing structure provided in an embodiment of the present utility model;

[0020] Figure 4 yes Figure 3 Enlarged structural diagram of region B in the middle;

[0021] Figure 5 This is a schematic diagram of the trapezoidal convex ridge structure of the cup mouth sealing structure provided by this utility model;

[0022] Figure 6 yes Figure 3 Top view;

[0023] Figure 7 yes Figure 6 Enlarged structural diagram of region C in the middle;

[0024] Figure 8This is a top view of the petal-shaped cup mouth sealing structure provided in this embodiment of the utility model;

[0025] Figure 9 yes Figure 8 A magnified schematic diagram of the D region.

[0026] In the picture:

[0027] 100. Cup; 101. Cup rim; 200. Cup holder; 300. Heat seal head; 400. Heat seal film; 1. Rib. Detailed Implementation

[0028] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present invention and not intended to limit it. Furthermore, it should be noted that, for ease of description, the accompanying drawings show only the parts relevant to the present invention, not the entire structure.

[0029] In the description of this utility model, unless otherwise explicitly specified and limited, the terms "connected," "linked," and "fixed" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0030] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0031] In the description of this embodiment, the terms "upper," "lower," "left," and "right," etc., refer to the orientation or positional relationship shown in the accompanying drawings. They are used only for ease of description and simplification of operation, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first" and "second" are only used for distinction in description and have no special meaning.

[0032] This utility model embodiment provides a cup mouth sealing structure, such as Figures 3-7 As shown, the cup mouth sealing structure includes a protruding rib 1, which protrudes from the upper surface of the cup rim 101 of the cup 100. The plasticity of the protruding rib 1 is greater than that of the cup rim 101. The protruding rib 1 can undergo plastic deformation during heat sealing to form a closed sealing structure.

[0033] The cup mouth sealing structure provided by this utility model includes a protruding ridge 1 on the upper surface of the cup rim 101, and the plastic deformation of the ridge 1 is greater than that of the cup rim 101. The ridge 1 can undergo plastic deformation during heat sealing to form a closed sealing structure and achieve sealing. The ridge 1 protrudes from the upper surface of the cup rim 101, increasing the thickness of the cup rim 101. During heat sealing, the heat sealing head 300 presses the heat sealing film 400 onto the ridge 1 for heat sealing. The ridge 1 undergoes plastic deformation and sealing connection with the heat sealing film 400 at the heat sealing temperature. It can be understood that the ridge 1 can offset the problem of non-parallel heat sealing plane caused by the deformation of the production line heat fusion sealing mechanism (heat sealing head 300), thereby solving the problems of incomplete heat sealing and incomplete sealing ring surface.

[0034] In some embodiments, the ridge 1 is made of the same material as the heat-sealing film 400. Thus, during heat sealing, the ridge 1 and the heat-sealing film 400 can undergo plastic deformation simultaneously to achieve a sealed connection. The ridge 1 compensates for the parallel error between the heat-sealing film 400, the cup rim 101, and the cup holder 200, which helps to improve the heat-sealing yield.

[0035] In some embodiments, the material of the raised ridge 1 is PET. PET is polyethylene terephthalate, a high-performance heat-sealing material. Both the heat-sealing film 400 and the raised ridge 1 are made of PET, making it easier to achieve heat sealing between materials of the same type.

[0036] In some embodiments, the cross-sectional dimensions of the convex ridge 1 gradually decrease from the upper surface of the cup rim 101 to the direction away from the upper surface.

[0037] It is understandable that by setting a convex ridge 1 with a gradually changing cross-sectional size, during heat sealing, the heat sealing head 300 and the heat sealing film 400 first come into contact with the convex ridge 1. Compared with the flat cup edge 101 in the prior art, the convex ridge 1 reduces the contact area between the heat sealing head 300 and the cup edge 101, resulting in greater pressure under the same heat pressure, making heat sealing easier and improving the heat sealing effect.

[0038] In some embodiments, the cross-section of the protruding ridge 1 is triangular or trapezoidal. For example... Figure 4 The image shows the protruding edge 1 of the triangular cross-section. Figure 5The image shows a trapezoidal cross-section convex ridge 1. It can be understood that the sealing of the cup 100's rim, while improving sealing performance, also requires good tearability of the heat-sealing film 400. Considering the consumer's or user's experience, the heat-sealing film 400 needs to ensure a complete and tight seal, but the adhesion between the heat-sealing film 400 and the cup rim 11 should not be too strong, and it should also have a certain degree of tearability. The triangular or trapezoidal convex ridge 1 allows for preferential plastic deformation at its tip during heat sealing, thus providing heat-sealing performance. Therefore, it can have a smaller sealing contact area while meeting heat-sealing performance requirements, combining good sealing and tearability.

[0039] In some embodiments, the protruding ridge 1 is a closed structure of an annular shape, a regular polygon, or a petal shape.

[0040] Figure 6 and Figure 7 The diagram shows a cup rim 101 structure with a circular protruding ridge 1. The protruding ridge 1 is located in the middle of the cup rim 101, forming concentric rings with the two side edges of the cup rim 101. The ring structure is simple, easy to process and heat-seal, and has good tear resistance. Figure 8 and Figure 9 The cup rim 101 shown has a petal-shaped ridge 1. Adjacent petals overlap or interlock, forming a good circumferential seal after heat sealing. The petal-shaped structure facilitates multiple easy-tear points around the rim 101, making it easier to handle.

[0041] In some embodiments, a plurality of protruding ribs 1 are provided, and the plurality of protruding ribs 1 are spaced apart along the upper surface of the cup edge 101 and distributed in a concentric ring.

[0042] Based on the sealing strength and sealing effect, and taking into account the ease of tearing, the adhesive force between the ridge 1 and the heat-sealing film 400 should not be too large. By setting multiple concentric ridges 1, a multi-stage closed sealing structure can be formed, reducing the tearing force of the heat-sealing film 400.

[0043] In some embodiments, multiple protrusions 1 are provided, and the multiple protrusions 1 are evenly spaced along the circumferential distance of the cup edge 101. Any two adjacent protrusions 1 are staggered, and the two adjacent protrusions 1 undergo plastic deformation and connect during heat sealing.

[0044] It is understandable that the protruding ridge 1 undergoes plastic deformation when heated during heat sealing. As long as the deformed protruding ridge 1 can contact each other, the gap between the protruding ridge 1 can be sealed. The gap between the protruding ridge 1 provides deformation space for the plastic deformation of the protruding ridge 1, which helps to reduce the pressure of the heat sealing head 300. Furthermore, turning the continuous protruding ridge 1 into a point-line force distribution helps to reduce the tearing force of the heat sealing film 400 and improve tearability.

[0045] Based on the cup mouth sealing structure provided in the above embodiments, the present invention also provides a cup 100, including the cup mouth sealing structure provided by the present invention.

[0046] The cup 100 provided by this utility model has an increased thickness of the cup rim 101 in its sealing structure. During heat sealing, it can offset the problem of non-parallel heat-sealing plane caused by deformation of the heat-melting sealing mechanism on the production line, thereby solving the problems of incomplete heat sealing and incomplete sealing ring surface.

[0047] Obviously, the above embodiments of this utility model are merely examples for clearly illustrating the present utility model, and are not intended to limit the implementation of the present utility model. Those skilled in the art can make various obvious changes, readjustments, and substitutions without departing from the protection scope of this utility model. It is neither necessary nor possible to exhaustively describe all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this utility model should be included within the protection scope of the claims of this utility model.

Claims

1. A cup-mouth sealing structure, characterized in that, The cup mouth sealing structure includes a protruding ridge (1), which protrudes from the upper surface of the cup rim (101) of the cup (100). The plastic deformation of the protruding ridge (1) is greater than that of the cup rim (101). The protruding ridge (1) can undergo plastic deformation during heat sealing to form a closed sealing structure.

2. The cup-mouth sealing structure according to claim 1, characterized in that, The protruding ridge (1) is made of the same material as the heat-sealing film (400).

3. The cup-mouth sealing structure according to claim 2, characterized in that, The material of the protruding ridge (1) is PET.

4. The cup-mouth sealing structure according to claim 1, characterized in that, The cross-sectional dimensions of the convex ridge (1) gradually decrease from the upper surface of the cup rim (101) to a direction away from the upper surface.

5. The cup-mouth sealing structure according to claim 4, characterized in that, The cross-section of the protruding ridge (1) is triangular or trapezoidal.

6. The cup-mouth sealing structure according to claim 1, characterized in that, The protruding ridge (1) is a closed structure, such as a ring, a regular polygon, or a petal shape.

7. The cup-mouth sealing structure according to claim 1, characterized in that, Multiple protruding ridges (1) are provided, and the multiple protruding ridges (1) are spaced apart along the upper surface of the cup edge (101) and distributed in a concentric ring.

8. The cup-mouth sealing structure according to claim 1, characterized in that, Multiple protrusions (1) are provided, and the multiple protrusions (1) are evenly spaced along the circumferential direction of the cup edge (101). Any two adjacent protrusions (1) are staggered. The two adjacent protrusions (1) undergo plastic deformation and connect during heat sealing.

9. A cup, characterized in that, Includes the cup-mouth sealing structure as described in any one of claims 1-8.

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