A novel preform structure

By designing a novel preform structure and utilizing the combination of the preform body, preform shoulder, preform mouth, preform root, and connecting components, the problems of preform instability and cap displacement within the mold were solved, achieving stable connection and accurate molding of the cap.

CN224428237UActive Publication Date: 2026-06-30GUANGDONG GONGFU IND CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
GUANGDONG GONGFU IND CO LTD
Filing Date
2025-08-05
Publication Date
2026-06-30

AI Technical Summary

Technical Problem

The existing preform structure is unstable within the molding die, causing the bottle cap to shift, affecting normal use, and failing to effectively limit the external bottle cap.

Method used

A novel bottle preform structure is adopted, which includes preform body, preform shoulder, preform mouth, preform root and connecting components. Through the cooperation of threaded parts, connecting parts and barrier parts, stability is ensured in the mold and the bottle cap is limited.

Benefits of technology

It improves the stability of the preform structure within the mold and the connection stability of the cap, avoids cap displacement, and enhances the reliability of the new preform.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN224428237U_ABST
    Figure CN224428237U_ABST
Patent Text Reader

Abstract

This utility model belongs to the field of packaging bottle technology and discloses a novel bottle preform structure, including: a preform body, a preform shoulder, a preform opening, a preform root, and a connecting component. The preform body is used to support the novel bottle preform structure. The preform shoulder is connected to the preform body and serves as support for the preform body. The preform opening is connected to the preform shoulder and is used to connect an external bottle cap. The preform root is connected to the preform body and serves as support for the preform body. The connecting component includes a threaded part, a first connector, a second connector, and a barrier. The threaded part is connected to the preform opening, and the first connector is connected to the preform opening. This ensures that the bottle preform structure remains stable inside the molding die, thereby ensuring its accurate molding. It can also limit the external bottle cap structure to prevent displacement of the bottle cap structure from affecting its normal use, effectively improving the connection stability of the bottle cap structure, thereby improving the reliability of the novel bottle preform structure.
Need to check novelty before this filing date? Find Prior Art

Description

Technical Field

[0001] This utility model belongs to the field of packaging bottle technology, and in particular relates to a novel bottle preform structure. Background Technology

[0002] With the development of the packaging industry, people's demand for packaging bottles is getting higher and higher. In the field of packaging bottle design and manufacturing, traditional bottle preform structures often have some shortcomings, such as difficulty in meeting the diversification of modern packaging needs and inability to effectively improve the protective performance of products. With the continuous growth of market demand and the increasing requirements of consumers for product protection and convenience, the existing bottle preform structure technology can hardly fully meet these needs. It is urgent to develop new bottle preform structures to enhance the market competitiveness of products. A new type of bottle preform structure is adopted to meet the above needs.

[0003] However, the existing new bottle preform structure has certain defects. It cannot ensure that the bottle preform structure remains stable inside the molding die, thus affecting its accurate molding. It also cannot effectively limit the external bottle cap structure, causing the bottle cap structure to shift and affecting its normal use. Utility Model Content

[0004] This utility model addresses the shortcomings of existing bottle preform structures, such as the inability to ensure stability within the molding die, which affects accurate molding, and the inability to effectively limit the external bottle cap structure, leading to displacement of the bottle cap structure and affecting its normal use. The following technical solution is proposed:

[0005] A novel preform structure, comprising:

[0006] Preform body, used to support novel preform structures;

[0007] Embryo shoulder, connected to the embryo body, serves as support for the embryo body;

[0008] The preform opening, connected to the preform shoulder, is used to connect to the external bottle cap;

[0009] The radicle, connected to the embryo, serves as a support for the embryo.

[0010] A connecting assembly includes a threaded component, a first connector, a second connector, and a blocking component. The threaded component is connected to the blank opening. The first connector is connected to the blank opening. The second connector is connected to the blank opening and is located below the first connector. The blocking component is connected to the blank opening and is located below the second connector.

[0011] Preferably, the second connector has an annular groove, which is correspondingly provided with the barrier.

[0012] Preferably, a stencil is provided on the blank opening, and the stencil is sandwiched between the threaded part and the connecting part.

[0013] Preferably, the second connector is sandwiched between the first connector and the barrier.

[0014] Preferably, the center of the connector and the center of the barrier are on the same vertical line, and the center of the barrier and the center of the blank opening are on the same vertical line.

[0015] Preferably, the radicle is located at the bottom of the embryo, and the radicle is positioned correspondingly to the embryo.

[0016] The beneficial effects of this utility model are as follows:

[0017] It can ensure that the preform structure remains stable inside the molding die, thereby guaranteeing its accurate molding. It can also limit the external cap structure to prevent displacement of the cap structure from affecting its normal use, effectively improving the connection stability of the cap structure and thus improving the reliability of the new preform structure. Attached Figure Description

[0018] Figure 1 The diagram shown is a schematic representation of the embryo's structure.

[0019] Figure 2 The diagram shows the installation structure of the blank opening;

[0020] Figure 3 The diagram shown is a schematic of the mounting structure of the plate.

[0021] Figure 4 The diagram shown is a schematic of the installation structure of the barrier component;

[0022] In the diagram: 1. Embryo body; 2. Embryo shoulder; 3. Embryo opening; 4. Embryo root; 5. Threaded part; 6. Connector 1; 7. Connector 2; 8. Barrier; 9. Annular groove; 10. Plate. Detailed Implementation

[0023] To make the objectives, technical solutions, and advantages of the present invention clearer, the technical solutions of the present invention will be clearly and completely described below in conjunction with the embodiments.

[0024] Example 1

[0025] This utility model provides a novel preform structure, such as Figures 1 to 4As shown, the device includes: a preform body 1, a preform shoulder 2, a preform opening 3, a preform root 4, and connecting components. The preform body 1 supports the novel bottle preform structure. The preform shoulder 2 is connected to the preform body 1, and its diameter gradually decreases from top to bottom, serving as support for the preform body 1. The preform opening 3 is connected to the preform shoulder 2, and its outer surface is frosted, used to connect to the external bottle cap. The preform root 4 is connected to the preform body 1, serving as support for the preform body 1. The preform body 1, preform shoulder 2, preform opening 3, and preform root 4 are all made of PET. The connecting components include a threaded component 5, a first connector 6, a second connector 7, and a barrier component 8. The threaded component 5 is connected to the preform opening 3 and can be a threaded strip. The outer surface of the preform opening 3, corresponding to the position of the threaded component 5, is frosted, serving as the bottle opening thread of the novel bottle preform structure, used to connect to the external bottle cap. The first connector 6 is connected to the preform opening 3 and can be a connecting ring, with its diameter gradually increasing from top to bottom. The second connector 7 is connected to the preform opening 3 and can... As an auxiliary ring, the diameter of connector 2 7 is smaller than the bottom diameter of connector 1 6. Connector 2 7 is connected to connector 1 6 and is located below connector 1 6. The barrier 8 can be a barrier ring, with its diameter gradually increasing from top to bottom. The bottom diameter of barrier 8 is larger than the bottom diameter of connector 1 6. Barrier 8 is connected to the blank opening 3 and to connector 2 7. Barrier 8 is located below connector 2 7. The connector 6 and the barrier 8 are sandwiched between each other. The center of the connector 6 and the center of the barrier 8 are on the same vertical line. The center of the barrier 8 and the center of the blank opening 3 are on the same vertical line. The blank root 4 is located at the bottom of the blank body 1. The blank root 4 is correspondingly set to the blank body 1. The connector 7 is provided with an annular groove 9. The annular groove 9 is correspondingly set to the barrier 8. The blank opening 3 is provided with a stencil 10 for engraving production information. The stencil 10 is sandwiched between the threaded part 5 and the connector 6.

[0026] By using connecting components, the preform structure can be kept stable inside the molding die, thus ensuring accurate molding. It can also limit the external cap structure to prevent displacement of the cap structure from affecting its normal use, effectively improving the connection stability of the cap structure and thus improving the reliability of the new preform structure.

[0027] In use, the novel PET preform structure is first softened by heating and then placed inside the molding die for high-pressure blow molding. High-pressure gas causes the preform 1 to expand, forming the bottle body. The preform shoulder 2 is formed as a transitional support structure between the bottle body and neck. The preform opening 3 remains largely unchanged, forming the bottle mouth. The preform root 4 is formed as a support for the bottle bottom (the above is existing technology and will not be elaborated upon here). Because the surfaces of the preform shoulder 2 and the preform opening 3, corresponding to the threaded parts 5, are both frosted, this not only enhances the friction when in contact with the mold but also ensures stability inside the molding die, thereby guaranteeing accuracy. The molding process also enhances the contact friction between the bottle mouth and the cap, thereby improving the connection stability of the cap. Furthermore, the step-shaped sealing base formed by the first connector 6, the second connector 7, and the barrier 8 ensures that the external cap structure is stably connected to the preform mouth 3. The annular groove 9 in the second connector 7 can limit the cap structure and prevent displacement that could affect its normal use. Also, since the diameter of the barrier 8 gradually increases from top to bottom, it can provide a sealing and pressing surface for the cap structure. The engraving plate 10 is used to engrave production information to a designated location for easy product traceability.

[0028] Specifically, a shoulder 2 is fixedly connected to the top of the embryo body 1, an opening 3 is fixedly connected to the top of the shoulder 2, a root 4 is fixedly connected to the bottom of the embryo body 1, a threaded part 5 is fixedly connected to the top of the opening 3, a plate 10 is provided on the outer surface of the opening 3 below the threaded part 5, a first connector 6 is provided on the outer surface of the opening 3 below the plate 10, a second connector 7 is provided on the outer surface of the opening 3 below the first connector 6, an annular groove 9 is provided on the second connector 7, and a barrier 8 is provided on the outer surface of the opening 3 below the second connector 7.

[0029] Working Principle: In actual use, the new PET preform structure is first softened by heating and then placed into the molding mold for high-pressure blow molding. High-pressure gas causes the preform 1 to expand, forming the bottle body. The preform shoulder 2 forms a transitional support structure between the bottle body and neck. The preform opening 3 remains largely unchanged, forming the bottle mouth. The preform root 4 forms the bottle bottom support (the above is existing technology and will not be elaborated upon here). Because the surfaces of the preform shoulder 2 and the preform opening 3, corresponding to the threaded parts 5, are both frosted, this not only enhances the friction when in contact with the mold, ensuring stability inside the molding mold and thus guaranteeing accurate molding, but also enhances the contact friction between the bottle mouth and the cap, thereby improving the connection stability of the cap. Furthermore, due to the connecting part 6... The connector 7 and the barrier 8 work together to form a stepped sealing base, which makes the external bottle cap structure stably connected to the preform opening 3. The annular groove 9 in the connector 7 can limit the bottle cap structure and prevent the bottle cap structure from shifting and affecting its normal use. Since the diameter of the barrier 8 gradually increases from top to bottom, it can provide a sealing and pressing surface for the bottle cap structure. The engraving plate 10 is used to engrave production information to a designated position, which facilitates product traceability and ensures that the preform structure remains stable inside the molding die, thereby ensuring its accurate molding. It can also limit the external bottle cap structure and prevent the bottle cap structure from shifting and affecting its normal use. This effectively improves the connection stability of the bottle cap structure and thus improves the reliability of the new preform structure.

[0030] The above embodiments are only used to illustrate the technical solution of this utility model, and are not intended to limit it.

Claims

1. A novel preform structure, characterized by, include: Preform (1), used for support of novel bottle preform structure; Embryo shoulder (2), connected to the embryo body (1), serves as support for the embryo body (1); Embryo opening (3), connected to the embryo shoulder (2), is used to connect to the external bottle cap; The radicle (4) is connected to the embryo (1) and serves as a support for the embryo (1); The connecting assembly includes a threaded part (5), a first connector (6), a second connector (7), and a barrier (8). The threaded part (5) is connected to the blank opening (3), the first connector (6) is connected to the blank opening (3), the second connector (7) is connected to the blank opening (3), the second connector (7) is connected to the first connector (6), and the second connector (7) is located below the first connector (6). The barrier (8) is connected to the blank opening (3), the barrier (8) is connected to the second connector (7), and the barrier (8) is located below the second connector (7).

2. A novel preform structure as claimed in claim 1, wherein: The connector 2 (7) is provided with an annular groove (9), which is correspondingly provided with the barrier (8).

3. A novel preform structure as claimed in claim 1, wherein: A stencil (10) is provided on the blank opening (3), and the stencil (10) is sandwiched between the threaded part (5) and the connector (6).

4. A novel preform structure as claimed in claim 1, wherein: The second connector (7) is sandwiched between the first connector (6) and the barrier (8).

5. A novel preform structure as claimed in claim 1, wherein: The center of the connector (6) and the center of the barrier (8) are on the same vertical line, and the center of the barrier (8) and the center of the ferrule (3) are on the same vertical line.

6. A novel preform structure as claimed in claim 1, wherein: The radicle (4) is located at the bottom of the embryo (1), and the radicle (4) is set in correspondence with the embryo (1).