Injection mold with guiding structure

By installing a cleaning component on the guide sleeve surface to scrape away debris from the guide rail surface, the stability problem caused by the deposits on the guide rail is solved, and the mold closing stability and molding accuracy of the injection mold are improved.

CN224489853UActive Publication Date: 2026-07-14HEYUAN JUNKAI TECH CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
HEYUAN JUNKAI TECH CO LTD
Filing Date
2025-07-08
Publication Date
2026-07-14

AI Technical Summary

Technical Problem

Debris adhering to the guide rail surface leads to poor stability of the injection mold, affecting the precision and quality of injection molding.

Method used

A cleaning assembly, including a vertical plate, a scraper, and a spring strip, is installed on the surface of the guide sleeve. The scraper removes debris from the guide rail surface by the movement of the guide sleeve, thus maintaining the stable movement of the guide sleeve and rollers.

Benefits of technology

It improves the stability of injection mold closing, avoids vibration caused by foreign objects, and ensures the accuracy and quality of injection molding.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model belongs to injection mold field, concretely relates to a kind of injection mold with guide structure, including mould base, the surface of mould base is equipped with injection bottom die, the top of mould base is equipped with telescopic link, the movable end of telescopic link is connected with mounting plate, the bottom side of mounting plate is connected with the injection top die that is compatible with injection bottom die;The lateral wall of mould base is connected with two groups of guide rail, the both sides of mounting plate are respectively connected with a guide sleeve set in the surface of guide rail, the inner wall of guide sleeve is equipped with the roller that is attached to the surface of guide rail.The utility model can drive vertical plate axial movement when guide sleeve axial movement by the setting of cleaning component, vertical plate axial movement can drive scraper axial movement by first guide rod and spring, and adhering matter on the surface of guide rail is scraped down by the axial movement of scraper, so as to avoid vibration when guide sleeve drive roller rolls on the surface of guide rail, so as to improve the stability of injection mold closing.
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Description

Technical Field

[0001] This utility model belongs to the field of injection molds, and specifically relates to an injection mold with a guiding structure. Background Technology

[0002] Injection molds are essential tools for producing plastic products and occupy a central position in the plastics processing industry. They are used to inject molten plastic material into a mold cavity, which then cools and solidifies to produce plastic products with specific shapes and sizes.

[0003] For example, in an injection mold with a guiding structure as described in application number CN202411297959.6, a guide component is provided. During the lifting and lowering of the upper injection mold driven by a cylinder, the guide rod slides directionally inside the guide groove, improving the stability of the upper injection mold during lifting and lowering, thereby improving the precision of the injection molding process. At the same time, the roller rolls directionally in the roller groove. While achieving secondary guidance through the roller, the friction coefficient between the roller and the roller groove is lower than that between the guide sleeve and the guide rod, reducing wear caused by friction and further improving the precision of the injection molding process.

[0004] In this injection mold guiding structure system, precise guidance is achieved by the cooperation of rollers and guide rails. When debris adheres to the surface of the guide rail, it will break the original smooth contact surface between the roller and the guide rail. When the roller passes through these areas with attached debris, the original smooth sliding state is broken, and vibration will inevitably occur during operation. This vibration will directly damage the stability of the injection mold when the mold is closed, thereby affecting the entire injection process and causing quality problems such as dimensional deviation and surface defects in the product.

[0005] In view of this, the present invention provides an injection mold with a guiding structure to solve the problem of poor stability caused by foreign matter adhering to the surface of the guide rail. Utility Model Content

[0006] To achieve the above objectives, this utility model provides the following technical solution: an injection mold with a guiding structure, including a mold base, an injection bottom mold mounted on the surface of the mold base, a telescopic rod mounted on the top of the mold base, a mounting plate connected to the movable end of the telescopic rod, and an injection top mold adapted to the injection bottom mold connected to the bottom side of the mounting plate.

[0007] The side wall of the mold base is connected to two sets of guide rails. Each side of the mounting plate is connected to a guide sleeve that is fitted onto the surface of the guide rail. The inner wall of the guide sleeve is fitted with a roller that fits against the surface of the guide rail. The surface of the guide sleeve is fitted with a cleaning component for cleaning the surface of the guide rail.

[0008] The cleaning assembly includes a vertical plate connected to the upper and lower side surfaces of the guide sleeve, a first guide hole opened on the side surface of the vertical plate, a first guide rod passing through the first guide hole, a scraper connected to the end of the first guide rod, and a spring strip connected to the side surface of the scraper and connected to the vertical plate.

[0009] As a preferred embodiment of the injection mold with a guiding structure according to this utility model, the spring bar presses the scraper onto the side wall surface of the guide rail through elastic force.

[0010] As a preferred embodiment of the present invention, the cleaning assembly further includes a second guide rod connected to the side surface of the scraper and a second guide hole opened on the side surface of the upright plate and matching the size of the second guide rod.

[0011] As a preferred embodiment of the present invention, an injection mold with a guiding structure is provided, wherein an assembly component for assembly is connected between the mounting plate and the guide sleeve, the assembly component including side ears connected to both sides of the guide sleeve and fixing holes respectively opened on the surfaces of the two side ears.

[0012] As a preferred embodiment of the present invention, the injection mold with a guide structure further includes a fixing bolt penetrating inside the fixing hole and a threaded hole formed on the side surface of the mounting plate.

[0013] In a preferred embodiment of this utility model, an injection mold with a guiding structure is wherein the threaded hole is threadedly connected to the fixing bolt.

[0014] Compared with the prior art, the beneficial effects of this utility model are:

[0015] This utility model, through the setting of the cleaning component, can drive the vertical plate to move axially when the guide sleeve moves axially. When the vertical plate moves axially, it can drive the scraper to move axially through the first guide rod and spring strip. The axial movement of the scraper scrapes off the adhering material on the guide rail surface, thereby avoiding vibration when the guide sleeve drives the roller to roll on the guide rail surface, thus improving the stability of the injection mold closing.

[0016] In this invention, the fixing bolt can move outward away from the threaded hole when it rotates inside the threaded hole. When the fixing bolt moves to the outside of the threaded hole, the guide sleeve can be removed from the surface of the guide rail, so that the roller can be replaced when it wears out after long-term use. Attached Figure Description

[0017] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings:

[0018] Figure 1This is a three-dimensional structural diagram of the present invention;

[0019] Figure 2 This is a schematic diagram of the guiding structure of this utility model;

[0020] Figure 3 This is a schematic diagram of the connection structure of the cleaning component of this utility model;

[0021] Figure 4 This is a cross-sectional view of the guide rail and guide sleeve connection structure of this utility model;

[0022] Figure 5 This is a schematic diagram of the cleaning component structure of this utility model;

[0023] Figure 6 This is an exploded view of the cleaning component structure of this utility model;

[0024] Figure 7 This is an exploded view of the installation component structure of this utility model.

[0025] In the diagram: 1. Mold base; 2. Injection bottom mold; 3. Telescopic rod; 4. Mounting plate; 5. Injection upper mold; 6. Guide rail; 7. Guide sleeve; 8. Roller; 9. Cleaning assembly; 901. Vertical plate; 902. First guide hole; 903. First guide rod; 904. Scraper; 905. Spring strip; 906. Second guide rod; 907. Second guide hole; 10. Mounting assembly; 1001. Side lug; 1002. Fixing hole; 1003. Fixing bolt; 1004. Threaded hole. Detailed Implementation

[0026] 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.

[0027] Example 1

[0028] This utility model relates to an injection mold with a guiding structure, such as Figures 1-6 As shown, it includes a mold base 1, an injection bottom mold 2 is mounted on the surface of the mold base 1, a telescopic rod 3 is mounted on the top of the mold base 1, a mounting plate 4 is connected to the movable end of the telescopic rod 3, and an injection top mold 5 adapted to the injection bottom mold 2 is connected to the bottom side of the mounting plate 4.

[0029] The side wall of the mold base 1 is connected to two sets of guide rails 6. The two sides of the mounting plate 4 are respectively connected to a guide sleeve 7 that is fitted on the surface of the guide rail 6. The inner wall of the guide sleeve 7 is fitted with a roller 8 that fits against the surface of the guide rail 6. The surface of the guide sleeve 7 is fitted with a cleaning component 9 for cleaning the surface of the guide rail 6.

[0030] The cleaning component 9 includes a vertical plate 901 connected to the upper and lower side surfaces of the guide sleeve 7, a first guide hole 902 opened on the side surface of the vertical plate 901, a first guide rod 903 passing through the first guide hole 902, a scraper 904 connected to the end of the first guide rod 903, and a spring strip 905 connected to the side surface of the scraper 904 and connected to the vertical plate 901.

[0031] The spring bar 905 presses the scraper 904 against the side wall surface of the guide rail 6 through its elastic force. When the guide sleeve 7 moves longitudinally, the scraper 904 can be driven to move longitudinally through the vertical plate 901 and the first guide rod 903. Thus, the longitudinal movement of the scraper 904 can scrape off the adhering material on the surface of the guide rail 6, thereby maintaining the stability of the guide sleeve 7 during its movement.

[0032] Furthermore, the cleaning assembly 9 also includes a second guide rod 906 connected to the side surface of the scraper 904 and a second guide hole 907 formed on the side surface of the upright plate 901 and matching the size of the second guide rod 906. When the scraper 904 is subjected to force, it can drive the second guide rod 906 to slide inside the second guide hole 907, thereby restricting the direction of movement of the scraper 904.

[0033] In use, the spring bar 905 elastically presses the scraper 904 against the surface of the guide rail 6. Then, when the telescopic rod 3 runs, it can drive the upper injection mold 5 to move axially through the mounting plate 4. When the mounting plate 4 moves axially, it can drive the roller 8 to roll on the surface of the guide rail 6 through the guide sleeve 7. When the guide sleeve 7 moves axially, it can drive the vertical plate 901 to move axially. When the vertical plate 901 moves axially, it can drive the scraper 904 to move axially through the first guide rod 903 and the spring bar 905. When the scraper 904 moves axially, it can scrape off the adhering material on the surface of the guide rail 6, thereby avoiding vibration when the guide sleeve 7 drives the roller 8 to roll on the surface of the guide rail 6, which would affect the stability of the mold closing.

[0034] Example 2

[0035] like Figure 2 and Figure 7 The second embodiment of the present invention is shown, which differs from the first embodiment described above only in that: an assembly component 10 for assembly is connected between the mounting plate 4 and the guide sleeve 7. The assembly component 10 includes side ears 1001 connected to both sides of the guide sleeve 7 and fixing holes 1002 respectively opened on the surfaces of the two side ears 1001.

[0036] The mounting assembly 10 also includes a fixing bolt 1003 that passes through the fixing hole 1002 and a threaded hole 1004 that is opened on the side surface of the mounting plate 4.

[0037] Furthermore, the threaded hole 1004 is threadedly connected to the fixing bolt 1003. When the fixing bolt 1003 passes through the fixing hole 1002 and is threadedly connected to the threaded hole 1004, the position of the side lug 1001 can be fixed through the threaded connection between the threaded hole 1004 and the fixing bolt 1003, thereby enabling the installation of the guide sleeve 7.

[0038] When in use, if the roller 8 inside the guide sleeve 7 needs to be replaced after long-term use, the fixing bolt 1003 can be rotated. When the fixing bolt 1003 rotates inside the threaded hole 1004, it can move to the outside away from the threaded hole 1004. When the fixing bolt 1003 moves to the outside of the threaded hole 1004, the guide sleeve 7 can be removed from the surface of the guide rail 6.

[0039] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. 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. Injection mold with guiding structure, comprising a mold base (1), characterized in that: The surface of the mold base (1) is equipped with an injection bottom mold (2), the top of the mold base (1) is equipped with a telescopic rod (3), the movable end of the telescopic rod (3) is connected to an installation plate (4), and the bottom side of the installation plate (4) is connected to an injection top mold (5) that is compatible with the injection bottom mold (2). The side wall of the mold base (1) is connected to two sets of guide rails (6). The two sides of the mounting plate (4) are respectively connected to a guide sleeve (7) fitted on the surface of the guide rail (6). The inner wall of the guide sleeve (7) is fitted with a roller (8) that fits against the surface of the guide rail (6). The surface of the guide sleeve (7) is fitted with a cleaning component (9) for cleaning the surface of the guide rail (6). The cleaning assembly (9) includes a vertical plate (901) connected to the upper and lower side surfaces of the guide sleeve (7), a first guide hole (902) opened on the side surface of the vertical plate (901), a first guide rod (903) passing through the first guide hole (902), a scraper (904) connected to the end of the first guide rod (903), and a spring strip (905) connected to the side surface of the scraper (904) and connected to the vertical plate (901).

2. An injection mold with a guide structure according to claim 1, characterized in that: The spring bar (905) presses the scraper (904) against the side wall surface of the guide rail (6) through elastic force.

3. An injection mold with a guide structure according to claim 2, characterized in that: The cleaning assembly (9) also includes a second guide rod (906) connected to the side surface of the scraper (904) and a second guide hole (907) opened on the side surface of the upright plate (901) and matching the size of the second guide rod (906).

4. The injection mold with a guide structure according to claim 1, characterized in that: The mounting plate (4) and the guide sleeve (7) are connected by a mounting assembly (10) for assembly. The mounting assembly (10) includes side ears (1001) connected to both sides of the guide sleeve (7) and fixing holes (1002) respectively opened on the surface of the two side ears (1001).

5. An injection mold with a guide structure according to claim 4, characterized in that: The mounting assembly (10) also includes a fixing bolt (1003) that passes through the fixing hole (1002) and a threaded hole (1004) that is opened on the side surface of the mounting plate (4).

6. An injection mold with a guiding structure according to claim 5, characterized in that: The threaded hole (1004) is threadedly connected to the fixing bolt (1003).