Thin inclined guide sliding pin structure in plastic mold

By introducing a fixed connection structure of ultra-thin inclined ejector, transition block and roller in the plastic mold, the problem of not being able to install guide pins on the ultra-thin inclined ejector is solved, realizing stable positioning and efficient production of the mold and extending the mold life.

CN223820926UActive Publication Date: 2026-01-23HEYUAN JSW SMART MFG CO LTD
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Patent Information

Application Number
CN202423248502.4
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-12-27
Publication Date
2026-01-23
Estimated Expiration
2034-12-27

AI Technical Summary

Technical Problem

In plastic molds, ultra-thin angled ejectors cannot be fitted with guide pins, resulting in inaccurate mold positioning, affecting product dimensional accuracy and consistency, and potentially shortening mold life due to friction and wear.

Method used

Design a thin-sloping guide pin structure for plastic molds, including an ultra-thin sloping top, a transition block and rollers, to ensure mold stability and precision and reduce friction and wear through fixing and threaded connection.

Benefits of technology

It improves mold installation efficiency and product precision consistency, extends mold life, reduces friction and wear, and increases production efficiency.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a thin inclined guide sliding pin structure in a plastic mould, which relates to the technical field of plastic mould manufacturing and comprises an ultrathin inclined top, a transition block is mounted at the bottom end of the ultrathin inclined top, the outer wall of the bottom end of the ultrathin inclined top is propped against the inner wall of the transition block, a pin I is mounted on the outer wall of the transition block, and a roller is mounted at the bottom end of the transition block. Pins II are mounted at two ends of the roller; according to the utility model, the ultrathin pitched roof is effectively connected with the mold, so that the processes of mounting, positioning, demolding and the like of the mold are allowed to be completed more quickly, the production cycle is shortened, the overall production efficiency is improved, the problem of unstable product size caused by position deviation of the mold can be reduced, and the precision and the consistency of products are improved.
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Description

Technical Field

[0001] This utility model relates to the field of plastic mold manufacturing technology, specifically to a thin, oblique guide pin structure in a plastic mold. Background Technology

[0002] Plastic molds are a type of combined mold used for compression molding, extrusion molding, injection molding, blow molding, and low-foaming molding. The coordinated changes of the mold's punch, die, and auxiliary forming system allow for the production of a series of plastic parts of different shapes and sizes. Plastic molds are the mother of industry; new product launches invariably involve plastics. In recent years, with the rapid development of the plastics industry and the continuous improvement in the strength and precision of general-purpose and engineering plastics, the application scope of plastic products has been constantly expanding, including in numerous fields such as household appliances, instruments, building materials, the automotive industry, and daily hardware. The proportion of plastic products is increasing rapidly. A well-designed plastic part can often replace multiple traditional metal parts, and the trend of plasticization in industrial and daily products is constantly rising.

[0003] In the existing technology, during the plastic mold production process, there may be situations where ultra-thin angled ejectors cannot be fitted with guide pins. The function of guide pins is to ensure that the various parts of the mold are precisely aligned during production. If guide pins cannot be installed on ultra-thin angled ejectors, it may lead to inaccurate mold positioning, thereby affecting the dimensional accuracy and consistency of the product. Without the assistance of guide pins, ultra-thin angled ejectors may experience additional wear due to friction during mold opening and closing, which may damage the mold and shorten its service life. Utility Model Content

[0004] The purpose of this invention is to provide a thin, oblique guide pin structure for plastic molds to solve the problems mentioned in the background art.

[0005] To solve the above-mentioned technical problems, this utility model provides a thin inclined guide pin structure in a plastic mold, including an ultra-thin inclined top, a transition block installed at the bottom end of the ultra-thin inclined top, the outer wall of the bottom end of the ultra-thin inclined top abutting against the inner wall of the transition block, a pin one installed on the outer wall of the transition block, a roller installed at the bottom end of the transition block, and pin two installed at both ends of the roller.

[0006] Furthermore, the bottom end of the ultra-thin inclined top is fixedly connected to the inner wall of the transition block, and the outer wall of pin one is connected to the ultra-thin inclined top and the transition block, with pin one being fixedly connected to the ultra-thin inclined top.

[0007] Furthermore, the outer wall of the roller is fixedly connected to the inner wall of the transition block, while the roller and the two pins are rotatably connected.

[0008] Furthermore, the top of the ultra-thin sloping top is provided with a sloping surface, and the material of the ultra-thin sloping top is a rigid wear-resistant material.

[0009] Furthermore, the surface of the first pin is provided with a first thread, and the inner wall of the middle part of the transition block is provided with a first threaded groove, so the first pin and the transition block are connected by a thread.

[0010] Furthermore, the roller surface is provided with a second thread, and the bottom inner wall of the transition block is provided with a second thread groove, and the roller and the transition block are connected by a thread.

[0011] Compared with the prior art, the beneficial effects of this utility model are: by effectively connecting the ultra-thin inclined top and the mold, the installation, positioning and demolding of the mold can be completed more quickly, thereby shortening the production cycle, improving the overall production efficiency, reducing the problem of unstable product dimensions caused by mold position deviation, and thus improving the precision and consistency of the product. Attached Figure Description

[0012] Figure 1 A front view schematic diagram of a thin, oblique guide pin structure in a plastic mold;

[0013] Figure 2 This is a side view of a thin, oblique guide pin structure in a plastic mold.

[0014] Figure 3 This is a schematic diagram of the overall structure of a thin, oblique guide pin structure in a plastic mold.

[0015] In the picture:

[0016] 1. Ultra-thin sloping top; 2. Transition block; 3. Pin one; 4. Roller; 5. Pin two. Detailed Implementation

[0017] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0018] Please see Figure 1 - Figure 3 This utility model provides a technical solution for a thin, oblique guide pin structure in a plastic mold:

[0019] In the embodiments of this utility model, see Figure 1 , Figure 2 , Figure 3It includes an ultra-thin sloping top 1, a transition block 2 installed at the bottom end of the ultra-thin sloping top 1, the outer wall of the bottom end of the ultra-thin sloping top 1 abutting against the inner wall of the transition block 2, a pin 3 installed on the outer wall of the transition block 2, a roller 4 installed at the bottom end of the transition block 2, and pins 5 installed at both ends of the roller 4.

[0020] It should be noted that the bottom end of the ultra-thin angled ejector 1 is fixedly connected to the inner wall of the transition block 2. During processing, the ultra-thin angled ejector 1 and the transition block 2 can move synchronously, thus ensuring the overall stability and processing accuracy of the mold. Through this fixed connection, no relative displacement occurs between the ultra-thin angled ejector 1 and the transition block 2. The surface of the pin 3 is provided with a first thread, and the inner wall of the middle part of the transition block 2 is correspondingly provided with a first threaded groove, realizing a threaded connection between the pin 3 and the transition block 2. This threaded connection not only ensures a strong bonding force between the two but also gives the system the flexibility to make fine adjustments or quick replacements when necessary. The active design, through the threaded connection, allows pin 3 to be securely fixed in transition block 2 while retaining a moderate adjustment range to adapt to different production requirements. A stable connection is established between roller 4 and transition block 2, while pin 5, installed at both ends of roller 4, achieves a rotational connection with roller 4, greatly reducing friction and wear during movement, thereby significantly improving the service life of the mold and ensuring smooth and unobstructed rolling during operation. This effectively reduces heat accumulation and wear caused by friction, thus comprehensively enhancing the overall performance and working efficiency of the mold.

[0021] Working principle: The bottom end of the ultra-thin angled ejector 1 is fixedly connected to the inner wall of the transition block 2, ensuring that the ultra-thin angled ejector 1 and the transition block 2 can move as a whole during the injection molding process, thereby ensuring the stability and precision of the mold. Through this fixed connection, no relative displacement occurs between the ultra-thin angled ejector 1 and the transition block 2, which is crucial for maintaining precise mold alignment. The surface of the pin 3 is provided with a first thread, and the inner wall of the middle part of the transition block 2 is provided with a first threaded groove. The pin 3 and the transition block 2 are connected by threads. This threaded connection provides strong connection force and allows for fine-tuning or replacement when needed. The threaded connection design allows the pin 3 to be firmly fixed in the transition block while providing a certain adjustment space to adapt to different production needs. Roller 4... The outer wall and the inner wall of the transition block 2 are fixedly connected, while the roller 4 and the two pins 5 are rotatably connected, allowing the pins 5 to rotate freely at both ends of the roller 4, reducing friction and wear, and improving the service life of the mold. The pins 5 reduce the heat and wear generated by friction, thereby improving the overall performance of the mold. The surface of the roller 4 is provided with a second thread, and the inner wall of the bottom end of the transition block 2 is provided with a second thread groove. The roller 4 and the transition block 2 are also threadedly connected. The double connection method increases the connection strength between the pins 5 and the transition block 2, ensuring stability under high load. Through the threaded connection, the pins 5 can be firmly fixed in the transition block 2, while providing additional stability to prevent loosening or falling off during high load operation.

Claims

1. A thin, angled guide pin structure for a plastic mold, comprising an ultra-thin angled top (1), characterized in that: The bottom end of the ultra-thin sloping top (1) is equipped with a transition block (2). The outer wall of the bottom end of the ultra-thin sloping top (1) abuts against the inner wall of the transition block (2). The outer wall of the transition block (2) is equipped with a pin (3). The bottom end of the transition block (2) is equipped with a roller (4). Both ends of the roller (4) are equipped with pins (5).

2. The thin, oblique guide pin structure in a plastic mold as described in claim 1, characterized in that: The bottom end of the ultra-thin inclined top (1) is fixedly connected to the inner wall of the transition block (2), and the outer wall of the pin (3) is connected to the ultra-thin inclined top (1) and the transition block (2). The pin (3) is fixedly connected to the ultra-thin inclined top (1).

3. The thin, oblique guide pin structure in a plastic mold as described in claim 2, characterized in that: The outer wall of the roller (4) is fixedly connected to the inner wall of the transition block (2).

4. The thin, oblique guide pin structure in a plastic mold as described in claim 3, characterized in that: The roller (4) and the two pins (5) are rotatably connected.

5. The thin, oblique guide pin structure in a plastic mold as described in claim 4, characterized in that: The top of the ultrathin sloping top (1) is provided with a sloping surface.

6. The thin, oblique guide pin structure in a plastic mold as described in claim 5, characterized in that: The material of the ultra-thin inclined top (1) is a rigid wear-resistant material.

7. The thin, oblique guide pin structure in a plastic mold as described in claim 6, characterized in that: The surface of the first pin (3) is provided with a first thread, and the inner wall of the middle part of the transition block (2) is provided with a first thread groove. The first pin (3) and the transition block (2) are connected by threads.

8. The thin, oblique guide pin structure in a plastic mold as described in claim 7, characterized in that: The surface of the roller (4) is provided with a second thread, and the inner wall of the bottom end of the transition block (2) is provided with a second thread groove. The roller (4) and the transition block (2) are connected by threads.