A large capacity rotary mold bottle mouth guide structure

Abstract

The utility model discloses a kind of large-capacity rotary mould bottle mouth guide structure, it is related to bottle mould technical field, including bottle body mould, bottle mouth mould and the bottle mouth guide block of symmetric setting, the guide block is equipped with gap part, and it is enclosed into the heating head guide hole coaxial with bottle mouth when moulding;The lower section of guide hole is around the outer wall of bottle mouth, and the inner diameter of upper section is less than bottle mouth to accurately constrain heating head.Guide block bottom is supported in bottle mouth outer edge area, and heating head insertion pressure is transmitted to mould non-critical stress area through guide block, to avoid bottle mouth direct stress wear and tear.The structure is isolated by pressure path and coaxial guide collaborative design, solve the problem that traditional mould bottle mouth is easily damaged, and positioning accuracy is low, applicable to large-capacity bottle body efficient blow molding production.

Description

Technical Field

[0001] This utility model relates to the field of blow molding technology, and more specifically, to a large-capacity rotary mold bottle mouth guide structure. Background Technology

[0002] In existing blow molding dies, the insertion guidance of the heating head largely relies on the structure of the bottle clamping die itself or a single guiding component, resulting in direct contact between the heating head and the bottle clamping area, with insertion pressure concentrated in the clamping area. Over long-term use, the bottle clamping area is prone to wear, deformation, and even cracking due to localized stress concentration, significantly shortening the die's lifespan. This problem is exacerbated, especially in large-capacity rotary dies where high-frequency mold closing and rapid heating head insertion further aggravate the issue. While existing improvements attempt to add guide blocks, their support position remains related to the bottle clamping area (e.g., wrapping around the outer wall or embedding within the clamping area), failing to completely isolate the pressure transmission path, causing the bottle clamping area to still indirectly bear the load. Furthermore, the insufficient coaxiality of traditional guide holes easily leads to heating head misalignment, affecting the bottle neck forming accuracy. Therefore, a guiding structure that can both accurately guide the bottle and completely isolate the bottle clamping area from stress is urgently needed. Utility Model Content

[0003] The present invention provides a large-capacity rotating mold bottle mouth guide structure, which can alleviate the above-mentioned problems.

[0004] To alleviate the above problems, the technical solution adopted by this utility model is as follows:

[0005] A large-capacity rotary mold bottle mouth guide structure includes a bottle body mold, a bottle clamping mouth mold mounted on the top of the bottle body mold, and two symmetrically arranged bottle clamping mouth guide blocks. The bottle clamping mouth guide blocks are provided with notches. When the mold is closed, the notches form a heating head guide hole coaxial with the bottle clamping mouth of the bottle clamping mouth mold. The lower section of the heating head guide hole surrounds the outer wall of the bottle clamping mouth, and the inner diameter of the upper section is smaller than the inner diameter of the bottle clamping mouth. The bottom of the bottle clamping mouth guide block is supported on the outer edge area of ​​the bottle clamping mouth of the bottle clamping mouth mold, and the top is used to directly contact the heating head to withstand the insertion pressure.

[0006] Furthermore, the lower section of the heating head guide hole is an outwardly expanding arc-shaped flared structure, and the upper section is a cylindrical hole structure.

[0007] Furthermore, the bottle clamp guide block has a stepped structure, including an upper stepped surface and a lower stepped surface; the notch extends from the lower stepped surface to the upper stepped surface and partially breaks the lower stepped surface; when the two bottle clamp guide blocks are molded into place, their lower stepped surfaces overlap and fit together to form a complete rectangular outline, and the notch surrounds and forms the heating head guide hole.

[0008] Compared with the prior art, the beneficial effects of this utility model are:

[0009] 1) The bottom of the bottle clamp guide block is supported on the outer edge of the bottle clamp. The pressure of the heating head insertion is directly transmitted to the non-critical stress area of ​​the mold through the guide block, which completely avoids the bottle clamp from bearing mechanical load and significantly improves pressure resistance and wear resistance.

[0010] 2) The notch of the double guide block forms a guide hole that is strictly coaxial with the bottle clamp, constraining the vertical insertion path of the heating head and eliminating bottle mouth forming defects caused by positioning deviation.

[0011] 3) The guide block and bottle clamping mold are designed separately, and can be replaced separately after wear, reducing maintenance costs and extending the service life of the mold.

[0012] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, embodiments of this utility model are described below in detail with reference to the accompanying drawings. Attached Figure Description

[0013] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0014] Figure 1 It is a cross-sectional view of the assembly of the bottle body mold and the bottle clamping mold, which shows a bottle clamping guide block located at the bottle clamping point;

[0015] Figure 2 This is a schematic diagram of the mold closing process of two bottle clamping guide blocks;

[0016] In the diagram: 1-Bottle body mold, 2-Bottle clamp mold, 3-Bottle clamp guide block, 4-Heating head guide hole. Detailed Implementation

[0017] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are some embodiments of this utility model, but not all embodiments.

[0018] Please refer to Figure 1 and Figure 2 This embodiment provides a large-capacity rotary mold bottle mouth guide structure, including a bottle body mold 1, a bottle clamping mold 2 installed on the top of the bottle body mold 1, and two symmetrically arranged bottle clamping guide blocks 3, each with a notch; when the mold is closed ( Figure 2The middle arrow indicates the mold closing direction of the two bottle clamp guide blocks 3. The notch surrounds the heating head guide hole 4, which is coaxial with the bottle clamp of the bottle clamp mold 2. The lower section of the heating head guide hole 4 surrounds the outer wall of the bottle clamp, and the inner diameter of the upper section is smaller than the inner diameter of the bottle clamp. The bottom of the bottle clamp guide block 3 is supported on the outer edge area of ​​the bottle clamp of the bottle clamp mold 2, and the top is used to directly contact the heating head to withstand the insertion pressure.

[0019] This guiding structure uses double guide blocks to form a guide hole, transferring the pressure of the heating head insertion from the bottle clamp mold 2 to the guide block, and then through the bottom of the guide block to the outer edge support area of ​​the mold, forming an independent pressure path. The guide hole is strictly coaxial with the bottle clamp, and the inner diameter of the upper section is smaller than that of the bottle clamp, forcing the heating head to be inserted precisely in the vertical direction, eliminating the risk of skewing. This guiding structure avoids the wear and deformation caused by direct pressure on the bottle clamp in traditional molds, reduces the positioning error of the heating head, and ensures the uniformity of bottle mouth forming.

[0020] In this embodiment, the lower section of the heating head guide hole 4 is an outwardly expanding arc-shaped flared structure, and the upper section is a cylindrical hole structure.

[0021] In this embodiment, the bottle clamp guide block 3 has a stepped structure, including an upper stepped surface and a lower stepped surface; the notch extends from the lower stepped surface to the upper stepped surface, and partially breaks the lower stepped surface; when the two bottle clamp guide blocks 3 are molded in place, their lower stepped surfaces overlap and fit together to form a complete rectangular outline, and the notch surrounds and forms the heating head guide hole 4. The stepped structure ensures that the two guide blocks are automatically aligned when the mold is closed, without the need for additional positioning components.

[0022] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A large-capacity rotary mold bottle mouth guide structure, comprising a bottle body mold (1) and a bottle clamping mold (2) mounted on the top of the bottle body mold, characterized in that, It also includes two symmetrically arranged bottle clamp guide blocks (3), each with a notch. When the mold is closed, the notch forms a heating head guide hole (4) coaxial with the bottle clamp of the bottle clamp mold (2). The lower section of the heating head guide hole (4) surrounds the outer wall of the bottle clamp, and the inner diameter of the upper section is smaller than the inner diameter of the bottle clamp. The bottom of the bottle clamp guide block (3) is supported on the outer edge of the bottle clamp of the bottle clamp mold (2), and the top is used to directly contact the heating head to withstand the insertion pressure.

2. The large-capacity rotary mold bottle mouth guide structure according to claim 1, characterized in that, The lower section of the heating head guide hole (4) is an outwardly expanding arc-shaped flared structure, and the upper section is a cylindrical hole structure.

3. The large-capacity rotary mold bottle mouth guide structure according to claim 1, characterized in that, The bottle clamp guide block (3) has a stepped structure, including an upper step surface and a lower step surface; the notch extends from the lower step surface to the upper step surface and partially breaks the lower step surface; when the two bottle clamp guide blocks (3) are molded in place, their lower step surfaces overlap and fit together to form a complete rectangular outline, and the notch surrounds and forms the heating head guide hole (4).

Images