Environment-friendly bottle cap and mold for forming environment-friendly bottle cap

Abstract

The utility model relates to the field of container sealing and container manufacturing, in particular to an environment-friendly bottle cap and a mold for forming the environment-friendly bottle cap, which comprises an integrally formed cap body, a tearing line is formed on the surface of the cap body, outer side notches are arranged at two ends of the tearing line, and when the tearing line is broken, a part on the upper side of the tearing line forms a turning cover. The part on the lower side of the tearing line forms a cover seat, a connecting belt for connecting the cover seat and the turning cover is formed between the two outer side notches, a plurality of inner side notches are formed in the connecting belt, and the inner side notches and the outer side notches are strip-shaped and extend to the peripheral surface of the cover seat from the top end surface of the turning cover; according to the environment-friendly bottle cap, the flip type structural design is adopted, when the bottle cap is opened, the cap base is connected with the bottle, the phenomenon that the bottle cap cannot be found or the bottle cap is thrown randomly due to the fact that the bottle cap is separated from the bottle is avoided, and the environment-friendly bottle cap can be formed through one-time in-mold injection molding, is low in cost and short in production period and can be produced in a large scale.

Description

Technical Field

[0001] The utility model relates to the fields of container sealing and container manufacturing, in particular to an environmentally friendly bottle cap and a mold for forming the environmentally friendly bottle cap. Background Art

[0002] Bottle caps are very common in daily life. All kinds of bottles such as beverage bottles, health product bottles and medicine bottles are sealed with bottle caps. For traditional beverage bottle caps of mineral water bottles, cola, etc., when opening the bottle for drinking, the bottle cap has to be separated from the bottle body, either held in the hand or placed elsewhere, which is very inconvenient to use. Moreover, it is easy to lose the bottle cap after it falls off the bottle body. Not only is it inconvenient to carry the beverage, but it is also not convenient to centrally recycle the bottle cap after it is lost, which affects the environment. Therefore, an environmentally friendly bottle cap and a mold for forming the environmentally friendly bottle cap are proposed. Summary of the Utility Model

[0003] The utility model aims to provide a technical solution to solve the above problems in order to overcome the above deficiencies.

[0004] An environmentally friendly bottle cap includes an integrally formed cap body. Tear lines are formed on the surface of the cap body. Outer slots are provided at both ends of the tear lines. When the tear lines are broken, the upper part of the tear line forms a flip cover, and the lower part of the tear line forms a cap base. The part between the two outer slots forms a connecting band connecting the cap base and the flip cover. A plurality of inner slots are formed on the connecting band. Both the inner slots and the outer slots are strip-shaped and start from the top end face of the flip cover and extend to the outer peripheral surface of the cap base.

[0005] As a further scheme of the utility model: The tear line includes a short circumferential segment, a long circumferential segment extending along the circumferential direction of the cap body, and an axial segment extending along the axial direction of the cap body. The axis of the short circumferential segment does not coincide with the axis of the long circumferential segment. The number of both the short circumferential segment and the axial segment is two, and the two short circumferential segments are respectively communicated with the two outer slots. The two ends of the long circumferential segment are respectively communicated with the two short circumferential segments through the two axial segments.

[0006] As a further scheme of the utility model: A sealing convex ring is provided on the inner wall of the top of the flip cover. A sealing protrusion is formed on the outer peripheral surface at the lower end of the sealing convex ring. The cross-sectional shape of the sealing protrusion is a wedge shape with a wider top and a narrower bottom, and the outer peripheral surface of the sealing protrusion is arc-shaped.

[0007] As a further scheme of the utility model: Internal threads are formed on the circumferential inner walls of both the flip cover and the cap base.

[0008] As a further scheme of the utility model: A plurality of inner clamping strips are annularly and arrayedly distributed on the circumferential inner wall of the cap base.

[0009] As a further scheme of the utility model: The short circumferential segment, the long circumferential segment, and the axial segment are all formed by the thin-walled part between the flip cover and the cap base.

[0010] The present utility model also provides a mold for molding the above-mentioned environmental protection bottle cap, which includes an upper mold and a lower mold. A mold groove is formed at the bottom of the upper mold, and a mold core is formed at the top of the lower mold. The mold core is frustum-shaped and defines a cap-shaped cavity with the mold groove. A plurality of upper mold protrusions are formed on the inner wall of the mold groove. The upper mold protrusions are strip-shaped and start from the top wall of the mold groove and extend to the circumferential inner wall of the mold groove. A ring-shaped groove is formed at the top of the mold core, and an outer peripheral mold edge protruding radially outward is formed on the outer periphery of the mold core. A plurality of notches are spaced apart on the outer peripheral mold edge.

[0011] As a further scheme of the present utility model: A plurality of thread grooves are also formed on the outer periphery of the mold core.

[0012] As a further scheme of the present utility model: A plurality of circumferential grooves are also distributed in a circular array on the outer periphery of the mold core.

[0013] As a further scheme of the present utility model: A through hole penetrating the top and bottom of the lower mold is formed in the lower mold, and an ejector rod is inserted into the through hole.

[0014] Compared with the prior art, the beneficial effects of the present utility model are as follows: The environmental protection bottle cap proposed by the present utility model adopts a flip-top structure design. When the bottle cap is opened, the cap base and the bottle are connected, which will not cause the bottle cap to separate from the bottle, resulting in the situation of losing the bottle cap or randomly throwing away the bottle cap. Moreover, the environmental protection bottle cap proposed by the present utility model can be integrally injection-molded in the mold, with low cost, short production cycle, and can be mass-produced.

[0015] Additional aspects and advantages of the present utility model will be given in part in the following description, become apparent in part from the following description, or be understood through the practice of the present utility model. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the following drawings are only some embodiments of the present utility model. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0017] Figure 1 It is a schematic structural diagram of the cap body of the present utility model.

[0018] Figure 2 It is another schematic structural diagram of the cap body of the present utility model.

[0019] Figure 3 It is yet another schematic structural diagram of the cap body of the present utility model.

[0020] Figure 4It is a schematic cross-sectional structure diagram of the cover body of the present utility model.

[0021] Figure 5 It is a schematic diagram of the unfolded state of the cover body of the present utility model.

[0022] Figure 6 It is a schematic structural state diagram of the mold of the present utility model.

[0023] Figure 7 It is a schematic structural state diagram of the mold core part of the present utility model.

[0024] Figure 8 It is a schematic structural state diagram of the upper mold groove part of the present utility model.

[0025] Figure 9 It is a schematic structural state diagram of the lower mold groove part of the present utility model.

[0026] In the figure: 100, cover body; 11, tear line; 12, outer notch; 13, flip cover; 14, cover base; 15, connecting band; 16, inner notch; 17, sealing convex ring; 18, sealing protrusion; 19, internal thread; 110, internal clamping strip; 111, short circumferential section; 112, long circumferential section; 113, axial section; 200, mold; 21, upper mold; 22, lower mold; 23, mold groove; 24, mold core; 25, upper mold convex block; 26, annular groove; 27, outer peripheral mold edge; 28, notch; 29, thread groove; 210, circumferential groove; 211, ejector rod. Detailed implementation manners

[0027] Next, the technical solutions in the embodiments of the present utility model will be described clearly and completely. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0028] Please refer to Figures 1 to 5, in the embodiment of the present utility model, an environmentally friendly bottle cap includes an integrally formed cap body 100. A tear line 11 is formed on the surface of the cap body 100. Outer notch 12 is provided at both ends of the tear line 11. When the tear line 11 breaks, the part above the tear line 11 forms a flip cover 13, and the part below the tear line 11 forms a cap base 14. The part between the two outer notches 12 forms a connecting band 15 connecting the cap base 14 and the flip cover 13. A plurality of inner notches 16 are formed on the connecting band 15. Both the inner notches 16 and the outer notches 12 are strip-shaped and start from the top end face of the flip cover 13 and extend to the outer peripheral surface of the cap base 14. For the environmentally friendly bottle cap proposed by the present utility model, by providing the tear line 11, the flip cover 13 can be torn and flipped up along the tear line 11 when drinking. In this way, the cap base 14 and the bottle are always connected, and it will not cause the bottle cap to separate from the bottle, resulting in the phenomenon of losing the bottle cap or littering the bottle cap at will. And by providing the outer notches 12 and the inner notches 16, the connecting band 15 has good deformation ability, and the flip cover 13 can be flipped more than 180 degrees to avoid the flip cover 13 touching the mouth and nose when drinking.

[0029] The tear line 11 includes a short circumferential segment 111, a long circumferential segment 112 extending along the circumferential direction of the cap body 100, and an axial segment 113 extending along the axial direction of the cap body 100. In this application, the circumferential direction refers to the circumferential direction, and the axial direction is relative to the circumferential direction. The axial center direction can be a direction parallel to the axial center of the cap body 100 or an inclined direction with a certain included angle. The axis of the short circumferential segment 111 does not coincide with the axis of the long circumferential segment 112. The number of both the short circumferential segment 111 and the axial segment 113 is two, and the two short circumferential segments 111 are respectively communicated with the two outer notches 12. The two ends of the long circumferential segment 112 are respectively communicated with the two short circumferential segments 111 through the two axial segments 113. With this structure, after the flip cover 13 is flipped up, the cap base 14 and the bottle mouth will have a relatively large contact area, making the connection between the cap base 14 and the bottle more stable and preventing the cap base 14 from separating from the bottle body.

[0030] A sealing convex ring 17 is provided on the inner wall of the top of the flip cover 13. After being assembled to the bottle mouth, the sealing convex ring 17 is inserted into the bottle mouth to play a role in strengthening the seal. A sealing protrusion 18 is formed on the outer peripheral surface of the lower end of the sealing convex ring 17. The cross-sectional shape of the sealing protrusion 18 is a wedge shape with a wider top and a narrower bottom, and the outer peripheral surface of the sealing protrusion 18 is arc-shaped. The sealing protrusion 18 facilitates the sealing convex ring 17 to enter and exit the bottle mouth.

[0031] In order to cooperate with the external thread at the bottle mouth, internal threads 19 are formed on the circumferential inner wall of the flip cover 13 and the circumferential inner wall of the cap base 14.

[0032] A plurality of inner clamping strips 110 are annularly and arrayedly distributed on the circumferential inner wall of the cap base 14. The inner clamping strips 110 are used to cooperate with the slots at the bottle mouth to prevent the cap base 14 from separating from the bottle body.

[0033] The short circumferential section 111, the long circumferential section 112, and the axial section 113 are all formed by the thin-walled part between the flip cover 13 and the cover base 14. The bottle cap with this structure is more convenient for production and can be integrally injection-molded in the mold without secondary processing of the short circumferential section 111, the long circumferential section 112, and the axial section 113.

[0034] Please refer to Figures 6 to 9 , the present utility model also provides a mold 200 for molding the above-mentioned environmental protection bottle cap, including an upper mold 21 and a lower mold 22. A mold groove 23 is formed at the bottom of the upper mold 21, and a mold core 24 is formed at the top of the lower mold 22. The mold core 24 is frustum-shaped and defines a cap body cavity with the mold groove 23. A plurality of upper mold protrusions 25 are formed on the inner wall of the mold groove 23. The upper mold protrusions 25 are strip-shaped and start from the groove top wall of the mold groove 23 and extend to the circumferential inner wall of the mold groove 23. A ring-shaped groove 26 is formed at the top of the mold core 24. An outer circumferential mold edge 27 protruding radially outward is formed on the outer circumference of the mold core 24. A plurality of notches 28 are spaced apart on the outer circumferential mold edge 27. A plurality of thread grooves 29 are also formed on the outer circumference of the mold core 24. A plurality of circumferential grooves 210 are also arranged in a circular array on the outer circumference of the mold core 24. It should be noted that the cap body cavity is used to mold the cap body 100 during injection molding, the circumferential grooves 210 are used to mold the inner clamping strips 110, the upper mold protrusions 25 are used to mold the outer slot openings 12 and the inner slot openings 16, the ring-shaped groove 26 is used to mold the sealing convex ring 17, the outer circumferential mold edge 27 is used to mold the tearing line 11, and notches 28 are provided on the outer circumferential mold edge 27 so that the tearing line 11 has a plurality of openings, enabling the user to tear the tearing line 11.

[0035] A through hole penetrating the top and bottom of the lower mold 22 is formed in the lower mold 22, and an ejector rod 211 is inserted into the through hole. After the injection molding, the ejector rod 211 can move upward to eject the cap body 100 from the mold core 24, facilitating demolding.

[0036] For those skilled in the art, it is obvious that the present utility model is not limited to the details of the above-mentioned exemplary embodiments, and can be implemented in other specific forms without departing from the spirit or basic characteristics of the present utility model. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-limiting. The scope of the present utility model is defined by the appended claims rather than the above description. Therefore, it is intended to embrace all changes falling within the meaning and scope of the equivalent elements of the claims in the present utility model.

Claims

1. An environmentally friendly bottle cap, characterized in that: The utility model comprises an integrally formed cover body, the surface of which is formed with a tear line, and outer notches are provided at both ends of the tear line. When the tear line breaks, the upper part of the tear line constitutes a flip cover, and the lower part of the tear line constitutes a cover seat. The portion between the two outer notches forms a connecting belt connecting the cover seat and the flip cover, and a plurality of inner notches are provided on the connecting belt. Both the inner notches and the outer notches are in the shape of strips, and start from the top end face of the flip cover and extend to the outer peripheral surface of the cover seat.

2. The environmentally friendly bottle cap according to claim 1, characterized in that: The tear line includes a short circumferential segment extending along the circumference of the cover body, a long circumferential segment and an axial segment extending along the axial direction of the cover body. The axis of the short circumferential segment does not coincide with the axis of the long circumferential segment. There are two short circumferential segments and two axial segments, and the two short circumferential segments are respectively connected to the two outer notches, and the two ends of the long circumferential segment are respectively connected to the two short circumferential segments through the two axial segments.

3. The environmentally friendly bottle cap according to claim 1, characterized in that: The top inner wall of the flip cover is provided with a sealing convex ring, and a sealing convex is formed on the outer peripheral surface of the lower end of the sealing convex ring. The cross-section of the sealing convex is a wedge shape that is wide at the top and narrow at the bottom, and the outer peripheral surface of the sealing convex is arc-shaped.

4. The environmentally friendly bottle cap according to claim 1, characterized in that: The circumferential inner wall of the flip cover and the circumferential inner wall of the cover seat are both formed with internal threads.

5. The environmentally friendly bottle cap according to claim 1, characterized in that: A plurality of inner clamping strips are distributed in a circular array on the circumferential inner wall of the cover seat.

6. The environmentally friendly bottle cap according to claim 2, characterized in that: The short circumferential section, the long circumferential section and the axial section are all formed by the thin-walled portion between the flip cover and the cover seat.

7. A mold for forming the environmentally friendly bottle cap as claimed in any one of claims 1 to 6, characterized in that: It includes an upper mold and a lower mold, a mold groove is formed at the bottom of the upper mold, and a mold core is formed at the top of the lower mold. The mold core is in a truncated cone shape and defines a cover body cavity between the mold groove. The inner wall of the mold groove is formed with a plurality of upper mold protrusions, which are strip-shaped and start from the top wall of the mold groove and extend to the circumferential inner wall of the mold groove. An annular groove is formed on the top of the mold core, and an outer peripheral mold edge protruding radially outward is formed on the outer periphery of the mold core, and a plurality of notches are spaced apart on the outer peripheral mold edge.

8. The mold according to claim 7, characterized in that: A plurality of thread grooves are also formed on the outer periphery of the mold core.

9. The mold according to claim 7, characterized in that: The outer circumference of the mold core is also provided with a plurality of circumferential grooves distributed in a circular array.

10. The mold according to claim 7, characterized in that: A through hole penetrating the top and the bottom of the lower mold is formed in the lower mold, and an ejector rod is inserted in the through hole.

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