CN215476313U

CN215476313U - Flat-bottom plug-in type paper container

Info

Publication number: CN215476313U
Application number: CN202023203111.2U
Authority: CN
Inventors: 王建平
Original assignee: Zhejaing Discover Machinery Manufacturing Co ltd
Current assignee: Zhejaing Discover Machinery Manufacturing Co ltd
Priority date: 2020-12-25
Filing date: 2020-12-25
Publication date: 2022-01-11
Anticipated expiration: 2030-12-25

Abstract

A flat-bottom plug-in type paper container comprises a cylinder body and a cylinder bottom arranged on the cylinder body. The barrel body is a frustum-shaped barrel. The barrel bottom comprises a flat bottom and an inserting edge folded from the bottom edge of the flat bottom. The flat bottom and the insertion edge are integrally formed. The inner side or the outer side of the small-diameter end of the cylinder body is bonded with the insertion edge of the cylinder bottom. The end part of the small-diameter end of the cylinder body is abutted against the flat bottom. The cylinder body comprises an adhesive folding edge arranged at one end with the small diameter of the cylinder body, and the extending direction of the adhesive folding edge faces to the central axis of the cylinder body and is perpendicular to the axial direction of the cylinder body. The flat-bottom plug-in type paper container is easy to manufacture, is suitable for mass manufacture, and can improve the strength of the flat-bottom plug-in type paper container by designing the width of the plug-in edge, so that the flat-bottom plug-in type paper container is suitable for accommodating articles with larger weight, and meets the requirements of users.

Description

Flat-bottom plug-in type paper container

Technical Field

The utility model relates to the technical field of packaging, in particular to a flat-bottom plug-in type paper container.

Background

Common disposable food vessels include paper bowls, cartons, paper bags, plastic film bags, and the like. Wherein, the paper cup is a paper container which is made by mechanical processing and bonding of base paper made of chemical wood pulp, the appearance is cup-shaped, and the paper container is widely applied to the fields of instant noodles, fast food and the like.

Along with the improvement of living standard of people, the requirement is more and more diversified, no longer satisfies in the paper cup of single form, but needs various cups to reach the purpose of mutual difference.

SUMMERY OF THE UTILITY MODEL

In view of the above, the present invention provides a novel flat bottom plug-in type paper container to meet the market demand.

A flat-bottom plug-in type paper container comprises a cylinder body and a cylinder bottom arranged on the cylinder body. The barrel body is a frustum-shaped barrel. The barrel bottom comprises a flat bottom and an inserting edge folded from the bottom edge of the flat bottom. The flat bottom and the insertion edge are integrally formed. The small-diameter end of the cylinder body is inserted into the cylinder bottom, and the inner side or the outer side of the small-diameter end of the cylinder body is adhered to the insertion edge of the cylinder bottom. The end part of the small-diameter end of the cylinder body is abutted against the flat bottom. The cylinder body comprises an adhesive folding edge arranged at one end with the small diameter of the cylinder body, and the extending direction of the adhesive folding edge faces to the central axis of the cylinder body and is perpendicular to the axial direction of the cylinder body.

Furthermore, the gram weight of the paper used for the cylinder body and the cylinder bottom is between 220 grams per square meter and 380 grams per square meter.

Further, the extending direction of the inserting edge is parallel to the extending direction of the barrel body.

Further, when the cylinder bottom is adhered to the outer side of the cylinder body, the flat bottom and the circumscribed bottom of the cylinder body have the same shape and area.

Further, when the cylinder bottom is adhered to the inner side of the cylinder body, the flat bottom has the same shape and area as the inscribed bottom of the cylinder body.

Further, the cross-sectional shapes of the cylinder body and the cylinder bottom are one of a polygon, a circle and an ellipse.

Furthermore, the flat-bottom plug-in type paper container also comprises a rolling opening arranged at the opening end of the cylinder body.

Further, the winding opening is formed by winding an arc on a section along the axial direction of the barrel body.

Further, the winding opening is formed by winding at least one polygon on the section along the axial direction of the barrel body.

Further, the polygon is a quadrangle, a pentagon, or a hexagon.

Further, the seam comprises a horizontal curled edge folded outwards from the cylinder body and a retaining edge folded towards the cylinder body from the horizontal curled edge, and the horizontal curled edge is bonded with the retaining edge.

Further, the bead further comprises a flap disposed at a free end of the retaining lip, the flap being bonded between the horizontal bead and the retaining lip.

Furthermore, the roll opening also comprises a spacing edge arranged at the free end of the retaining edge and a turning edge arranged at the free end of the spacing edge, wherein the turning edge is adhered to the horizontal roll edge and the retaining edge is arranged at intervals.

Compared with the prior art, the flat-bottom plug-in type paper container provided by the utility model has the barrel body and the barrel bottom, and the barrel bottom comprises a flat bottom and a plug-in edge folded from the edge of the flat bottom. The barrel body is a frustum-shaped barrel, and the small-diameter end of the barrel body is bonded to the outer side or the inner side of the insertion edge. The manufacturing method of the cylinder bottom is simple, so that the flat-bottom plug-in type paper container is easy to manufacture and is suitable for mass production. Simultaneously, because the grafting edge bonds on the lateral wall of stack shell to can improve this flat grafting type paper container's intensity through the width that this grafting edge of design, thereby can make this flat grafting type paper container be applicable to some and hold the article that weight is great, satisfy user's demand.

Drawings

Fig. 1 is an exploded view of a flat bottom plug-in type paper container according to a first embodiment of the present invention.

Fig. 2 is a schematic cross-sectional view of the flat bottom plug-in type paper container of fig. 1.

Fig. 3 is a partially enlarged schematic view of the flat bottom plug-in type paper container of fig. 1 at a.

Fig. 4 is a partially enlarged structural view of the flat bottom plug-in type paper container of fig. 1 at B.

Fig. 5 is an enlarged partial view of a flat bottom plug-in type paper container of a second embodiment of the present invention at a.

Fig. 6 is an enlarged partial view of a third embodiment of a flat bottom plug-in type paper container of the present invention at a.

Fig. 7 is an enlarged view of a portion of a flat bottom plug-in type paper container at a in accordance with a fourth embodiment of the present invention.

Fig. 8 is a partially enlarged structural view of a flat bottom plug-in type paper container at B according to a fifth embodiment of the present invention.

Fig. 9 is a partial enlarged structural view of a flat bottom plug-in type paper container at B according to a sixth embodiment of the present invention.

Fig. 10 is a partially enlarged view of a flat bottom plug-in type paper container at B according to a seventh embodiment of the present invention.

Detailed Description

Specific examples of the present invention will be described in further detail below. It should be understood that the description herein of embodiments of the utility model is not intended to limit the scope of the utility model.

Fig. 1 to 4 are schematic structural views of a flat bottom plug-in type paper container according to a first embodiment of the present invention. The flat bottom plug-in type paper container comprises a cylinder body 10, a cylinder bottom 20 arranged on the cylinder body 10, and a rolling opening 30 arranged at the opening end of the cylinder body 10. It is conceivable that the flat bottom plug-in type paper container may further include other functional modules, such as advertisement paper disposed outside the cylinder 10, a heat insulation layer disposed on the cylinder 10, etc., which are well known to those skilled in the art and will not be described herein.

The barrel body 10 and the barrel bottom 20 can be made of the same paper material, specifically, the gram weight of the used paper is 150 g/square meter to 750 g/square meter, and the paper can be double-layer laminating paper or single-layer laminating paper, so as to achieve the purpose of preventing leakage or leakage. The film coating material used by the double-layer lacquer film paper or the single-layer film coating paper can be PE, PP, PLA, PBS, PET or the like. In addition, the paper used may also have a plastic-free coating or be coated with paper plastic aluminum and the like, which are prior art and will not be described herein again. In addition, the thicknesses of the cylinder 10 and the cylinder bottom 20 can be the same or different. For example, when the thickness and grammage of the bottom 20 is greater than the thickness and grammage of the body 10, it helps to increase the bottom weight of the paper container so that it does not easily topple when placed, particularly when empty.

The barrel 10 is formed by rolling a fan-shaped piece of paper, and thus it forms a frustum-shaped tubular structure. It will be appreciated that the juncture of the fan sheets of paper from which the barrel 10 is made is heated to bond the film together. Preferably, the cylinder 10 further includes an adhesive fold 11 disposed at one end of the cylinder 10 with a smaller diameter, the adhesive fold 11 extends in a direction toward the central axis of the cylinder 10 and perpendicular to the axial direction of the cylinder 10, and the function and connection manner thereof will be described below.

The bottom 20 comprises a flat bottom 21 and an insertion edge 22 folded from the edge of the flat bottom 21. The flat bottom 21 can be formed integrally with the flange 22, for example by direct stamping, which is technically mature and simple and therefore suitable for industrial manufacture. The plug-in rim 22 should be folded back towards the plane of the flat bottom 21, thus forming a disc-shaped structure. The inner side or the outer side of the small-diameter end of the cylinder body 10 and the insertion edge 22 of the cylinder bottom 20 are adhered to each other. There are two cases depending on the mutual positional relationship of the bottom 20 and the barrel 10. That is, when the insertion edge 22 of the cylinder bottom 20 is adhered to the outer side of the cylinder 10, the flat bottom 21 has the same shape and area as the circumscribed bottom of the cylinder 10, as shown in fig. 3. When the insertion edge 22 of the cylinder bottom 20 is adhered to the inner side of the cylinder 10, the flat bottom 21 has the same shape and area as the inscribed bottom of the cylinder 10, as shown in fig. 5. In summary, the insertion edge 22 should closely fit with the inner or outer sidewall of the small diameter side of the barrel 10 to prevent liquid leakage and ensure the bonding strength. The cross-sectional shapes of the barrel body 10 and the flat bottom 21 of the barrel bottom 20 can be one of a polygon, a circle and an ellipse. In this embodiment, the cross-sectional shapes of the barrel 10 and the barrel bottom 20 are circular. In addition, in order to improve the bonding strength between the barrel 10 and the barrel bottom 20, the bonding fold 11 of the barrel 10 is bonded to the flat bottom 21 of the barrel bottom 20. The position relationship between the cylinder 10 and the cylinder bottom 20 can be realized by the fact that the cylinder 10 is provided with or without the adhesive folding edge 11, besides the position relationship shown in figures 3 and 5, and the position relationship also has two conditions, as shown in figures 6 and 7.

It should be noted that fig. 5 to 8 are partially enlarged views of the second to fifth embodiments at the same positions as those of the first embodiment, respectively, for the sake of simplicity of illustration, and are used to illustrate the relative positions of the barrel 10 and the barrel bottom 20 and the structural shape of the winding opening 30.

The curled lip 30 is curled back toward the barrel 10 and is integrally formed with the barrel 10 to form a cup rim in the prior art. The roll-up 30 not only improves the stiffness of the open end of the barrel 10, but also facilitates the drinking of the paper container by the user when holding liquid. As shown in fig. 4, the winding opening 30 is wound in a circular arc shape in a cross section along the axial direction of the barrel 10, thereby forming a circular winding opening. As shown in fig. 6, the winding opening 30 is formed by winding at least one polygon in a cross section along the axial direction of the barrel 10. The polygon is a quadrangle, a pentagon, or a hexagon. The seam 30 comprises a horizontal rolled edge 31 folded outwardly from the can 10 and a retaining edge 32 folded from the horizontal rolled edge 31 toward the can 10. The horizontal bead 31 is bonded to the retaining rim 32 to form a flat seam. In addition, in order to improve the stiffness of the bead 30, the bead 30 further includes a flap 33 provided at the free end of the holding edge 32, and the flap 33 is bonded between the horizontal bead 31 and the holding edge 32, as shown in fig. 7. As shown in fig. 8, the seam 30 is a square seam, and includes a horizontal curl 31 extending outward from the can body 10, a holding edge 32 extending outward from the horizontal curl 31 toward the can body 10, a spacer edge 33 disposed at a free end of the holding edge 32, and a flap edge 34 disposed at a free end of the spacer edge 33. The spacer 33 is adhered to the outer wall of the can body 10, and the flap 34 is adhered to the horizontal bead 31 and spaced apart from the holding edge 32, so that the stiffness of the bead 30 can be further improved.

Compared with the prior art, the flat-bottom plug-in type paper container provided by the utility model has the barrel body 10 and the barrel bottom 20, and the barrel bottom 20 comprises a flat bottom 21 and a plug-in edge 22 folded from the edge of the flat bottom 21. The barrel 10 is a frustum-shaped barrel and the small diameter end thereof is bonded to the outer side or the inner side of the insertion flange 22. The flat bottom plug-in type paper container is easy to manufacture and suitable for mass production because the manufacturing mode of the cylinder bottom 20 is simple. Meanwhile, the insertion edge 22 is bonded on the side wall of the barrel body 10, so that the width of the insertion edge 22 can be designed, the strength of the flat-bottom insertion type paper container can be improved, and the flat-bottom insertion type paper container can be suitable for accommodating articles with larger weight and meet the requirements of users.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the scope of the present invention, and any modifications, equivalents or improvements that are within the spirit of the present invention are intended to be covered by the following claims.

Claims

1. A flat-bottom plug-in type paper container is characterized in that: the flat-bottom plug-in type paper container comprises a container body and a container bottom arranged on the container body, wherein the container body is a frustum-shaped container, the container bottom comprises a flat bottom and a plug-in edge folded from the edge of the flat bottom, the flat bottom and the plug-in edge are integrally formed, the small-diameter end of the container body is plugged in the container bottom, the inner side or the outer side of the small-diameter end of the container body is mutually bonded with the plug-in edge of the container bottom, the end part of the small-diameter end of the container body is abutted against the flat bottom, the container body comprises a bonding folded edge arranged at one end of the small-diameter end of the container body, and the extending direction of the bonding folded edge faces towards the central axis of the container body and is perpendicular to the axial direction of the container body.

2. The flat bottom plug-in paper container of claim 1, wherein: the gram weight of the paper used for the cylinder body and the cylinder bottom is 220 g/square meter to 380 g/square meter.

3. The flat bottom plug-in paper container of claim 1, wherein: the extension direction of the insertion edge is parallel to the extension direction of the barrel body.

4. The flat bottom plug-in paper container of claim 1, wherein: when the cylinder bottom is bonded on the outer side of the cylinder body, the flat bottom has the same shape and area as the external bottom of the cylinder body.

5. The flat bottom plug-in paper container of claim 1, wherein: when the cylinder bottom is bonded on the inner side of the cylinder body, the flat bottom has the same shape and area as the inscribed bottom of the cylinder body.

6. The flat bottom plug-in paper container of claim 1, wherein: the cross-sectional shapes of the cylinder body and the cylinder bottom are one of polygon, circle and ellipse.

7. The flat bottom plug-in paper container of claim 1, wherein: the flat-bottom plug-in type paper container also comprises a roll opening arranged at the opening end of the cylinder body.

8. The flat bottom plug-in paper container of claim 7, wherein: the winding opening is formed by winding an arc on the section along the axial direction of the cylinder body.

9. The flat bottom plug-in paper container of claim 7, wherein: the winding opening is formed by winding at least one polygon on the section along the axial direction of the cylinder body.

10. The flat bottom plug-in paper container of claim 9, wherein: the polygon is a quadrangle, a pentagon, or a hexagon.

11. The flat bottom plug-in paper container of claim 9, wherein: the roll opening comprises a horizontal roll edge which is folded outwards from the cylinder body, and a retaining edge which is folded outwards from the horizontal roll edge to the cylinder body, and the horizontal roll edge is bonded with the retaining edge.

12. The flat bottom plug-in paper container of claim 11, wherein: the bead further includes a hem disposed at a free end of the retention bead, the hem being bonded between the horizontal bead and the retention bead.

13. The flat bottom plug-in paper container of claim 11, wherein: the roll opening further comprises a spacing edge arranged at the free end of the retaining edge and a turning edge arranged at the free end of the spacing edge, the turning edge is bonded on the horizontal roll edge, and the retaining edge is arranged at intervals.