CN110979960A - Paper cover and forming process thereof - Google Patents
Paper cover and forming process thereof Download PDFInfo
- Publication number
- CN110979960A CN110979960A CN201911165105.1A CN201911165105A CN110979960A CN 110979960 A CN110979960 A CN 110979960A CN 201911165105 A CN201911165105 A CN 201911165105A CN 110979960 A CN110979960 A CN 110979960A
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- CN
- China
- Prior art keywords
- paper
- ring
- cover
- folded edge
- paper ring
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
- B65D45/00—Clamping or other pressure-applying devices for securing or retaining closure members
- B65D45/02—Clamping or other pressure-applying devices for securing or retaining closure members for applying axial pressure to engage closure with sealing surface
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Closures For Containers (AREA)
Abstract
The invention discloses a paper cover and a forming process thereof, the paper cover comprises a cover surface and an outer paper ring which are connected, and the paper cover is characterized in that: an inner paper ring is arranged in the outer paper ring, the upper end of the inner paper ring is connected to the lower end of the cover surface, an annular accommodating groove is formed between the inner paper ring and the outer paper ring, when the paper cover is covered at the upper end of the paper container, a rolling opening at the upper end of the paper container is buckled in the accommodating groove, and the inner wall of the accommodating groove and the inner wall of the paper container are in sealing fit; the paper cover forming process comprises the following steps: 1) preparing a cover body comprising a cover surface and an outer paper ring; 2) preparing an inner paper ring, turning over the lower end of the inner paper ring to form a turned edge, and turning over the upper end of the inner paper ring to form an inner folded edge or an outer folded edge; 3) and connecting the inner folded edge or the outer folded edge at the upper end of the inner paper ring to the lower end of the cover surface corresponding to the inner circle of the outer paper ring. The invention has stable structure and convenient manufacture, and prevents the liquid from overflowing from the covered part of the paper cover and the paper container.
Description
Technical Field
The invention relates to an improved paper container cover, in particular to an improved paper cover which is used on a paper cup or a paper bowl and prevents liquid from overflowing.
Background
Paper containers such as paper cups or paper bowls are widely used due to the environmental protection characteristic of the materials, usually, paper cups or paper bowls are provided with paper covers due to the use requirements of the paper cups or the paper bowls, however, the existing paper covers comprise paper rings and cover surfaces which are connected, when the paper covers are arranged at the upper end openings of the paper cups or the paper bowls, the inner walls of the paper rings are tightly matched and connected with the rolling openings at the upper ends of the paper cups or the paper bowls, so that the paper covers are firmly fixed at the upper ends of the paper cups or the paper bowls, and the liquid in the paper cups or the paper bowls cannot be prevented from overflowing from the cover joint of the paper covers and the paper cups or the paper bowls.
Disclosure of Invention
The technical problem to be solved by the invention is to overcome the defects of the prior art and provide the paper cover which has a stable structure and prevents overflow.
In order to solve the technical problems, the invention is realized by adopting the following technical scheme: this kind of paper lid, including continuous capping and outer paper circle, its characterized in that: the utility model discloses a paper container, including outer paper circle, paper cover lid, paper container upper end, the paper circle is equipped with interior paper circle in the outer paper circle, and interior paper circle upper end is connected at the capping lower extreme, forms annular containing groove between interior paper circle and the outer paper circle, works as when paper cover lid is established in paper container upper end, paper container upper end book mouth lock is in the holding tank, and sealed laminating between the inboard inner wall of holding tank and the paper container inner wall.
And the cover surface and the outer paper ring are formed in a paper mode.
The lower end of the inner paper ring is provided with a turned edge, or the inner paper ring is provided with a bottom surface.
The upper end of the inner paper ring is provided with an inner folded edge or an outer folded edge, and the inner folded edge or the outer folded edge is connected with the lower end of the cover surface.
The holding tank is matched with the paper container upper end roll port in a clamping mode, a limiting flange is arranged on the inner wall of the corresponding holding tank outer side, and the limiting flange is matched with the lower portion of the roll port in a limiting mode.
The lower end of the outer paper ring is turned inwards for 180 degrees to form an upper folded edge, the upper folded edge is attached to the inner wall of the outer paper ring, and the upper end edge of the upper folded edge forms the limiting flange, or the upper edge of the upper folded edge protrudes inwards to form the limiting flange; or the outer paper ring protrudes inwards to form the limiting flange.
The inner diameter of the lower section of the outer paper ring is larger than the outer diameter of the upper section of the outer paper ring, the lower section of the outer paper ring and the upper section of the outer paper ring are vertically arranged, a transition inclined plane or an arc-shaped surface for connecting the lower section of the outer paper ring and the upper section of the outer paper ring is arranged on the outer paper ring, or the outer paper ring is integrally arranged as a conical surface.
The forming process of the paper cover is characterized by comprising the following steps of: 1) preparing a cover body comprising a cover surface and an outer paper ring, wherein the cover surface and the outer paper ring are manufactured and molded into the cover body through paper, or the cover surface and the outer paper ring are connected and manufactured into the cover body; 2) preparing an inner paper ring, turning over the lower end of the inner paper ring to form a turned edge, and turning over the upper end of the inner paper ring to form an inner folded edge or an outer folded edge; 3) and connecting the inner folded edge or the outer folded edge at the upper end of the inner paper ring to the lower end of the cover surface corresponding to the inner circle of the outer paper ring.
And in the step 1), the lower end of the outer paper ring is rolled inwards and is reversely rolled and pressed on the inner wall of the outer paper ring to form an upper folded edge, and the upper edge of the upper folded edge forms the limit flange, or the upper folded edge is pressed to enable the upper folded edge to bulge inwards to form the limit flange.
The step 1) further comprises pressing the outer paper ring to enable the outer paper ring to protrude inwards to form the limiting flange.
The improved paper cover and the forming process thereof have the advantages that the paper cover is reasonable in structure and convenient to operate, the paper cover can be stably covered on the upper end opening of the paper container by arranging the accommodating groove matched and buckled with the roll opening at the upper end of the paper container, the inner wall of the inner side of the accommodating groove is in sealing fit with the inner wall of the paper container, and liquid can be effectively prevented from overflowing from the covered part of the paper cover and the paper container; and the paper cover can be manufactured and molded by arranging the inner paper ring on the existing paper cover, so that reprocessing and upgrading of the existing paper cover are realized, and resources are reasonably utilized.
Drawings
The following describes embodiments of the present invention in further detail with reference to the accompanying drawings.
FIG. 1 is a schematic structural diagram of the present invention.
FIG. 2 is an enlarged view of portion A of FIG. 1 according to the present invention.
Fig. 3 is a view showing a state where the paper cover of the present invention is closed on the paper container.
FIG. 4 is an enlarged view of the first part B of FIG. 3 according to the present invention.
FIG. 5 is an enlarged view of the second portion B of FIG. 3 according to the present invention.
Fig. 6 is a stacked state diagram of the paper cover of the present invention.
Fig. 7 is a structural view of the inner paper ring provided with the bottom surface.
Detailed Description
The drawings show the structure of the invention, and the details thereof are further described below with reference to the drawings. Referring to the attached drawings 1 and 2, the paper cover comprises a cover surface 1 and an outer paper ring 2 which are connected, wherein an inner paper ring 3 is arranged in the outer paper ring 2, the upper end of the inner paper ring 3 is connected to the lower end of the cover surface 1, an annular accommodating groove 5 is formed between the inner paper ring 3 and the outer paper ring 2, referring to the attached drawing 3, when the paper cover is arranged at the upper end of a paper container 6, a rolling opening 7 at the upper end of the paper container 6 is buckled in the accommodating groove 5, so that the rolling opening 7 is tightly attached to the accommodating groove 5 and is not easy to separate, the inner wall of the inner side of the accommodating groove 5 is in sealing attachment with the inner wall of the paper container 6, and the sealing attachment can be a circle of line sealing or a circle of surface sealing formed by line contact between the inner wall of the inner side of.
The cover surface 1 and the outer paper ring 2 are formed by paper, and the paper forming for manufacturing the paper cover is the prior art and is not described in detail here.
In order to enhance the radial supporting strength of the inner paper ring 3, the lower end of the inner paper ring 3 is provided with a curled edge 4, the curled edge 4 can be an inner curled edge or an outer curled edge, when the curled edge is the inner curled edge, the outer side wall of the inner paper ring is attached to the inner wall of the paper container, and when the curled edge is the outer curled edge, the outer curled edge is attached to the inner wall of the paper container; alternatively, referring to fig. 7, the inner paper ring 3 is provided with a bottom surface 11.
In order to enhance the buckling stability of the accommodating groove 5 and the upper end rolling opening 7 of the paper container 6, the accommodating groove 5 is in clamping fit with the upper end rolling opening 7 of the paper container 6, a limiting flange 9 is arranged on the inner wall of the outer side of the corresponding accommodating groove 5, the limiting flange 9 is in limiting fit with the lower part of the rolling opening 7, specifically, referring to fig. 5, the lower end of the outer paper ring 2 is turned inwards for 180 degrees to form an upper folding edge 10, the upper folding edge 10 is attached to the inner wall of the outer paper ring 2, and the upper end edge of the upper folding edge 10 forms the limiting flange, or referring to fig. 4, the upper folding edge 10 protrudes inwards to form the limiting flange; or the outer paper ring 2 protrudes inwards to form the limiting flange.
Referring to fig. 6, in order to facilitate the sleeving and stacking of the paper covers, the inner diameter of the lower section of the outer paper ring 2 is larger than the outer diameter of the upper section of the outer paper ring 2, the lower section of the outer paper ring 2 and the upper section of the outer paper ring 2 are vertically arranged, and a transition inclined plane or an arc-shaped surface for connecting the lower section of the outer paper ring 2 and the upper section of the outer paper ring 2 is arranged on the outer paper ring 2, or the outer paper ring 2 is integrally arranged as a conical surface.
The forming process of the paper cover comprises the following steps: 1) preparing a cover body comprising a cover surface 1 and an outer paper ring 2, wherein the cover surface 1 and the outer paper ring 2 are manufactured and molded into the cover body through one piece of paper, or the cover surface 1 is connected with the outer paper ring 2 to manufacture and mold the cover body, and the connection comprises glue adhesion, ultrasonic welding or hot-pressing ironing; 2) preparing an inner paper ring 3, turning the lower end of the inner paper ring 3 inwards to form a turned edge 4, and turning the upper end of the inner paper ring 3 to form an inner folded edge or an outer folded edge 8; 3) and connecting an inner folding edge or an outer folding edge 8 at the upper end of the inner paper ring 3 to the lower end of the cover surface 1 corresponding to the inner circle of the outer paper ring 2, wherein the connection comprises glue bonding, ultrasonic welding or hot pressing.
The spacing between the outer paper ring 2 and the inner paper ring 3 of the paper cover and the rolling port 7 at the upper end of the paper container 6 are clamped and matched in a way that the step 1) also comprises the step of reversely rolling and pressing the lower end of the outer paper ring 2 after inward nest rolling forming on the inner wall of the outer paper ring to form an upper folding edge 10, and the upper end edge of the upper folding edge 10 forms the limit flange 9, or the upper folding edge 10 is pressed to make the upper folding edge 10 protrude inwards to form the limit flange 9; or, the step 1) further comprises pressing the outer paper ring 2 to make the outer paper ring 2 protrude inwards to form the limiting flange, wherein the pressing and forming of the limiting flange are realized by rolling.
In summary, the above description is only a preferred embodiment of the present invention, and is not intended to limit the scope of the present invention. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. The paper lid, including continuous capping and outer paper circle, its characterized in that: the utility model discloses a paper container, including outer paper circle, paper cover lid, paper container upper end, the paper circle is equipped with interior paper circle in the outer paper circle, and interior paper circle upper end is connected at the capping lower extreme, forms annular containing groove between interior paper circle and the outer paper circle, works as when paper cover lid is established in paper container upper end, paper container upper end book mouth lock is in the holding tank, and sealed laminating between the inboard inner wall of holding tank and the paper container inner wall.
2. A paper cover as defined in claim 1, wherein: and the cover surface and the outer paper ring are formed in a paper mode.
3. A paper cover as defined in claim 1, wherein: the lower end of the inner paper ring is provided with a turned edge, or the inner paper ring is provided with a bottom surface.
4. A paper cover as defined in claim 1, wherein: the upper end of the inner paper ring is provided with an inner folded edge or an outer folded edge, and the inner folded edge or the outer folded edge is connected with the lower end of the cover surface.
5. A paper cover as defined in claim 1, wherein: the holding tank is matched with the paper container upper end roll port in a clamping mode, a limiting flange is arranged on the inner wall of the corresponding holding tank outer side, and the limiting flange is matched with the lower portion of the roll port in a limiting mode.
6. A paper cover as claimed in claim 5, wherein: the lower end of the outer paper ring is turned inwards for 180 degrees to form an upper folded edge, the upper folded edge is attached to the inner wall of the outer paper ring, and the upper end edge of the upper folded edge forms the limiting flange, or the upper edge of the upper folded edge protrudes inwards to form the limiting flange; or the outer paper ring protrudes inwards to form the limiting flange.
7. A paper cover as defined in claim 1, wherein: the inner diameter of the lower section of the outer paper ring is larger than the outer diameter of the upper section of the outer paper ring, the lower section of the outer paper ring and the upper section of the outer paper ring are vertically arranged, a transition inclined plane or an arc-shaped surface for connecting the lower section of the outer paper ring and the upper section of the outer paper ring is arranged on the outer paper ring, or the outer paper ring is integrally arranged as a conical surface.
8. A forming process for making the paper cover of claim 1, comprising the steps of: 1) preparing a cover body comprising a cover surface and an outer paper ring, wherein the cover surface and the outer paper ring are manufactured and molded into the cover body through paper, or the cover surface and the outer paper ring are connected and manufactured into the cover body; 2) preparing an inner paper ring, turning over the lower end of the inner paper ring to form a turned edge, and turning over the upper end of the inner paper ring to form an inner folded edge or an outer folded edge; 3) and connecting the inner folded edge or the outer folded edge at the upper end of the inner paper ring to the lower end of the cover surface corresponding to the inner circle of the outer paper ring.
9. A process for forming a paper cover as claimed in claim 8, wherein: and in the step 1), the lower end of the outer paper ring is rolled inwards and is reversely rolled and pressed on the inner wall of the outer paper ring to form an upper folded edge, and the upper edge of the upper folded edge forms the limit flange, or the upper folded edge is pressed to enable the upper folded edge to bulge inwards to form the limit flange.
10. A process for forming a paper cover as claimed in claim 8, wherein: the step 1) further comprises pressing the outer paper ring to enable the outer paper ring to protrude inwards to form the limiting flange.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911165105.1A CN110979960A (en) | 2019-11-25 | 2019-11-25 | Paper cover and forming process thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911165105.1A CN110979960A (en) | 2019-11-25 | 2019-11-25 | Paper cover and forming process thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110979960A true CN110979960A (en) | 2020-04-10 |
Family
ID=70086197
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911165105.1A Pending CN110979960A (en) | 2019-11-25 | 2019-11-25 | Paper cover and forming process thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110979960A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112046081A (en) * | 2020-08-29 | 2020-12-08 | 李强 | Paper cover and processing technology thereof |
| EP4242128A1 (en) * | 2022-02-22 | 2023-09-13 | Michael Hörauf Maschinenfabrik GmbH u. Co. KG | Lid made of paper, cardboard or paper-like material and method for producing a lid |
-
2019
- 2019-11-25 CN CN201911165105.1A patent/CN110979960A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112046081A (en) * | 2020-08-29 | 2020-12-08 | 李强 | Paper cover and processing technology thereof |
| EP4242128A1 (en) * | 2022-02-22 | 2023-09-13 | Michael Hörauf Maschinenfabrik GmbH u. Co. KG | Lid made of paper, cardboard or paper-like material and method for producing a lid |
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