Bonding structure of combined cup

Abstract

The utility model provides a bonding structure of a combined cup, which comprises an inner container and an outer layer cup body sleeved outside the inner container, the outer layer cup body comprises a cup body paper tube and a cup bottom round paper support arranged at the lower end inside the cup body paper tube, the inner side of the lower end of the cup body paper tube is provided with a first annular bonding part, the first annular bonding part is provided with a first water-based glue coating, and the first water-based glue coating is provided with a second water-based glue coating. The cup bottom circular paper support comprises a circular paper board and an annular side wall paper board arranged on the periphery of the circular paper board, a second annular bonding part is arranged on the inner side of the annular side wall paper board, the first annular bonding part can be bent inwards and then attached to the second annular bonding part, and a bonding glue layer is arranged between the inner side of the upper end of the cup body paper tube and the inner container. A bottom interval space is arranged between the bottom of the inner container and the cup bottom round paper support. The cup is simple in structure, the cup body paper tube and the cup bottom round paper support do not need to be classified, the cup is more environmentally friendly, and due to the fact that only the first annular bonding part is coated with the water-based glue coating, the production cost is low.

Description

Technical Field

[0001] The utility model relates to the field of instant noodle container manufacturing, in particular to a bonding structure of a combined cup. Background Art

[0002] At present, cup noodle containers on the market are generally divided into two structures, one is a single-layer cup body structure, and the other is a two-layer cup body structure. The one-layer cup body will be very hot on the outside after adding hot water, which is inconvenient to take, while the two-layer cup body is composed of an inner liner and an outer paper cup. The inner liner has a waterproof effect, while the outer paper cup mainly plays a heat-insulating role and can also print relevant product information. The outer paper cup of the existing two-layer cup body is made of a fan-shaped cup body paper and a circular cup bottom paper bonded together, and the circular cup bottom is PE composite paper, which is then pressed and bonded to the bottom of the cup body paper through high-temperature heating. This not only does not require gluing, but also has a waterproof and oil-proof effect. However, since PE composite paper is not easy to degrade, some countries or regions will need to classify this type of garbage and charge additional garbage disposal fees, greatly increasing the cost of use. Utility Model Content

[0003] In order to solve the technical problems in the prior art that the two-layer structure cup body needs to be sorted and processed and is not environmentally friendly, the utility model provides a bonding structure of a combined cup that is easy to recycle and more environmentally friendly.

[0004] The utility model provides a bonding structure of a combined cup, comprising an inner liner and an outer cup body sleeved on the outer side of the inner liner, the outer cup body comprising a cup body paper tube and a circular cup bottom paper holder arranged at the lower end of the inner part of the cup body paper tube, a first annular bonding portion is arranged on the inner side of the lower end of the cup body paper tube, the first annular bonding portion is provided with a first water-based glue coating, the circular cup bottom paper holder comprises a circular paperboard and an annular side surrounding paperboard arranged on the outer periphery of the circular paperboard, a second annular bonding portion is arranged on the inner side of the annular side surrounding paperboard, the first annular bonding portion can be bent inwardly and then fitted with the second annular bonding portion, an adhesive layer is arranged between the inner side of the upper end of the cup body paper tube and the inner liner, and a bottom spacing space is arranged between the bottom of the inner liner and the circular cup bottom paper holder.

[0005] As a further improvement of the present invention, the first aqueous glue coating of the first annular adhesive portion is a strip-shaped glue coating structure arranged at intervals.

[0006] As a further improvement of the present invention, the first aqueous glue coating of the first annular adhesive portion is a glue coating structure with strips arranged in an alternating manner.

[0007] As a further improvement of the present invention, the height of the first annular adhesive portion is 1-2 cm.

[0008] As a further improvement of the utility model, a third annular adhesive portion is further provided at the upper end of the first annular adhesive portion, a fourth annular adhesive portion in contact with the third annular adhesive portion is provided on the outer side of the annular side paperboard, and the third annular adhesive portion is provided with a second water-based glue coating.

[0009] As a further improvement of the utility model, a water-based varnish coating is provided on the outer side of the cup body paper tube.

[0010] As a further improvement of the utility model, the cup body paper tube is formed by enclosing and bonding fan-shaped pieces.

[0011] As a further improvement of the present invention, the first water-based glue coating and the second water-based glue coating are both acrylic glue coatings.

[0012] As a further improvement of the present invention, the inner liner is a polypropylene inner liner.

[0013] As a further improvement of the present invention, a middle spacing space is provided between the inner liner and the cup body paper tube at the lower end of the adhesive layer.

[0014] The beneficial effects of the utility model are as follows: the utility model has a simple structure, and a first water-based glue coating is coated on the inner side of the lower end of the paper tube of the cup body, so that the circular paper holder at the bottom of the cup can use base paper, and can also achieve bonding combination, and there is no need to use PE composite paper to achieve the bonding effect. In this way, when recycling garbage, since the entire outer cup body can directly use base paper, there is no need for classification and processing, which is more environmentally friendly and does not require additional garbage disposal costs. Moreover, since only a circle of water-based glue coating is coated on the first annular bonding portion, the production cost is also relatively low. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the overall structure of a bonding structure of a combination cup of the utility model;

[0016] Figure 2 It is a structural schematic diagram of an inner liner of a bonding structure of a combined cup of the utility model;

[0017] Figure 3 It is a schematic diagram of the exploded structure of the outer cup body of the bonding structure of a combination cup of the utility model;

[0018] Figure 4 It is a structural schematic diagram of a circular paper holder at the bottom of a combined cup of the utility model;

[0019] Figure 5 It is a planar development diagram of a cup body paper tube of a bonding structure of a combined cup of the utility model;

[0020] Figure 6It is a cross-sectional view of an outer cup body of a bonding structure of a combined cup of the utility model.

[0021] Figure numerals: 1- liner; 2- outer cup body; 3- first water-based glue coating; 21- paper tube for cup body; 22- circular paper support for cup bottom; 23- circular paperboard; 24- annular side paperboard; 25- first annular adhesive portion; 241- second annular adhesive portion; 242- fourth annular adhesive portion. DETAILED DESCRIPTION

[0022] In the description of the present invention, it should be understood that if there are descriptions involving orientation, such as orientations or positional relationships indicated by up, down, front, back, left, and right, the orientation description may be based on the orientation or positional relationships shown in the drawings. This is only for the convenience of describing the present invention and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it cannot be understood as a limitation on the present invention.

[0023] In the description of the utility model, if there is a description of quantity, "several" means one or more, "more" means more than two, "greater than", "less than", "exceed" etc. are understood to exclude the number itself, and "above", "below", "within" etc. are understood to include the number itself. If there is a description of first or second, it is only used to distinguish the technical features, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features or implicitly indicating the order of the indicated technical features.

[0024] In the description of the present invention, unless otherwise clearly defined, terms such as setting, installing, connecting, etc. should be understood in a broad sense, and technicians in the relevant technical field can reasonably determine the specific meanings of the above terms in the present invention based on the specific content of the technical solution.

[0025] like Figures 1 to 6 As shown, the utility model discloses a bonding structure of a combined cup, comprising an inner liner 1 and an outer cup body 2 sleeved on the outer side of the inner liner 1, the outer cup body 2 comprising a cup body paper tube 21 and a cup bottom circular paper holder 22 arranged at the lower end of the cup body paper tube 21, a first annular bonding portion 25 is provided on the inner side of the lower end of the cup body paper tube 21, the first annular bonding portion 25 is provided with a first aqueous glue coating 3, the cup bottom circular paper holder 22 comprises a circular cardboard 23 and an annular side surrounding cardboard 24 arranged on the outer periphery of the circular cardboard 23, a second annular bonding portion 241 is provided on the inner side of the annular side surrounding cardboard 24, the first annular bonding portion 25 can be bent inwardly and then fitted with the second annular bonding portion 241, an adhesive layer is provided between the inner side of the upper end of the cup body paper tube 21 and the inner liner 1, and a bottom spacing space is provided between the bottom of the inner liner 1 and the cup bottom circular paper holder 22.

[0026] In the utility model, a first annular adhesive portion 25 is arranged on the inner side of the lower end of the cup body paper tube 21, and the first annular adhesive portion 25 is provided with a first water-based glue coating 3. During processing, it is only necessary to place the circular paper holder 22 at the bottom of the cup in the cup body paper tube 21, and then heat the first water-based glue coating 3 on the first annular adhesive portion 25, and then bend the first annular adhesive portion 25 of the cup body paper tube 21 inward to make it adhere to the second annular adhesive portion 241 of the circular paper holder 22 at the bottom of the cup, and the production of the outer cup body 2 is completed. Since the first water-based glue coating 3 is coated on the inner side of the lower end of the cup body paper tube 21, the circular paper holder 22 at the bottom of the cup can use base paper and can also be bonded together, so there is no need to use PE composite paper to achieve the bonding effect. In this way, when recycling garbage, since the entire outer cup body 2 can directly use base paper, there is no need for classification and processing, which is more environmentally friendly and does not require additional garbage disposal costs. In addition, since only a circle of water-based glue coating is coated on the first annular bonding part 25, the production cost is also relatively low.

[0027] In the utility model, a bottom spacing space is provided between the bottom of the inner liner 1 and the circular paper holder 22 at the bottom of the cup, which can play a better role in heat insulation and scalding prevention.

[0028] In some embodiments, the first water-based glue coating 3 of the first annular adhesive portion 25 is a strip-shaped glue coating structure that is arranged at intervals, or the first water-based glue coating 3 of the first annular adhesive portion 25 is a strip-shaped glue coating structure that is staggered. This not only can play a bonding role, but also can further save the amount of glue used, thereby further reducing production costs.

[0029] In the present invention, the height of the first annular bonding portion 25 is 1-2 cm, which can achieve a better bonding effect.

[0030] In some embodiments, a third annular adhesive portion is further provided at the upper end of the first annular adhesive portion 25, a fourth annular adhesive portion 242 is provided on the outer side of the annular side surrounding cardboard 24 and is bonded to the third annular adhesive portion, and the third annular adhesive portion is provided with a second water-based glue coating, so that both the inner and outer sides of the annular side surrounding cardboard 24 are bonded to the cup body paper tube 21, which can achieve a better connection effect and higher strength.

[0031] In the utility model, a water-based varnish coating is provided on the outer side of the cup body paper tube 21, and the water-based varnish coating can play a role of being waterproof and oil-proof.

[0032] In the present invention, the cup body paper tube 21 is formed by enclosing and bonding sector-shaped pieces.

[0033] In the utility model, the first water-based glue coating 3 and the second water-based glue coating are both acrylic glue coatings, which are more environmentally friendly.

[0034] In the present invention, the inner liner 1 is a polypropylene inner liner 1.

[0035] In the utility model, a middle spacing space is provided between the inner liner 1 and the cup body paper tube 21 at the lower end of the adhesive layer, so as to further improve the heat insulation and scalding prevention effect and facilitate holding.

[0036] The utility model has a simple structure. A first water-based glue coating 3 is coated on the inner side of the lower end of the paper tube 21 of the cup body. In this way, the circular paper holder 22 at the bottom of the cup can use base paper and can also be bonded together. There is no need to use PE composite paper to achieve the bonding effect. In this way, when recycling garbage, since the entire outer cup body 2 can directly use base paper, there is no need for classification and processing, which is more environmentally friendly and does not require additional garbage disposal costs. In addition, since only a circle of water-based glue coating is coated on the first annular bonding portion 25, the production cost is also relatively low.

[0037] The above contents are further detailed descriptions of the present invention in combination with specific preferred implementations, and the specific implementation of the present invention cannot be considered to be limited to these descriptions. For ordinary technicians in the technical field to which the present invention belongs, several simple deductions or substitutions can be made without departing from the concept of the present invention, which should be regarded as falling within the protection scope of the present invention.

Claims

1. A bonding structure of a combined cup, characterized in that: It includes an inner liner and an outer cup body sleeved on the outer side of the inner liner, the outer cup body includes a cup body paper tube and a circular cup bottom paper holder arranged at the lower end of the cup body paper tube, the inner side of the lower end of the cup body paper tube is provided with a first annular adhesive portion, the first annular adhesive portion is provided with a first water-based glue coating, the circular cup bottom paper holder includes a circular cardboard and an annular side surrounding cardboard arranged on the outer periphery of the circular cardboard, the inner side of the annular side surrounding cardboard is provided with a second annular adhesive portion, the first annular adhesive portion can be bent inwardly and then fitted with the second annular adhesive portion, an adhesive layer is provided between the inner side of the upper end of the cup body paper tube and the inner liner, and a bottom spacing space is provided between the bottom of the inner liner and the circular cup bottom paper holder.

2. The bonding structure of the combination cup according to claim 1, characterized in that: The first water-based glue coating of the first annular adhesive portion is a strip-shaped glue coating structure arranged at intervals.

3. The bonding structure of the combined cup according to claim 1, characterized in that: The first water-based glue coating of the first annular adhesive portion is a glue coating structure with strips arranged alternately.

4. The bonding structure of the combined cup according to claim 1, characterized in that: The height of the first annular bonding portion is 1-2 cm.

5. The bonding structure of the combined cup according to claim 1, characterized in that: A third annular adhesive portion is also provided at the upper end of the first annular adhesive portion, a fourth annular adhesive portion in contact with the third annular adhesive portion is provided on the outer side of the annular side surrounding paperboard, and the third annular adhesive portion is provided with a second water-based glue coating.

6. The bonding structure of the combined cup according to claim 1, characterized in that: The outer side of the cup body paper tube is provided with a water-based varnish coating.

7. The bonding structure of the combined cup according to claim 1, characterized in that: The cup body paper tube is formed by enclosing and bonding fan-shaped pieces.

8. The bonding structure of the combined cup according to claim 5, characterized in that: The first water-based glue coating and the second water-based glue coating are both acrylic glue coatings.

9. The bonding structure of the combined cup according to claim 1, characterized in that: The inner liner is a polypropylene inner liner.

10. The bonding structure of the combined cup according to claim 1, characterized in that: A middle spacing space is provided between the inner liner and the cup body paper tube at the lower end of the adhesive layer.

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