Secondary telescopic hook for plastic mold production
By introducing a secondary telescopic mechanism into the plastic mold, precise telescopic movements inside the mold are achieved, solving the problem of difficult demolding of plastic products and improving production efficiency and reliability.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHENZHEN PMOLD TECH LTD
- Filing Date
- 2025-05-13
- Publication Date
- 2026-05-08
AI Technical Summary
In the production process of existing plastic molds, plastic products tend to adhere tightly to the mold surface during the cooling process, making demolding difficult. Furthermore, production inconvenience may occur due to unsuitable mold temperature or unreasonable cavity design.
A secondary telescopic bracket for plastic mold production is adopted. The secondary telescopic bracket mechanism realizes precise telescopic movement inside the mold, provides sufficient filling space and assists in the smooth demolding of the product. The accuracy and reliability of the movement are ensured by using mechanical structure or hydraulic system.
The mold shrinkage process has been optimized, increasing the manufacturability of the product. It ensures that the product can shrink again under the same height and undercut, expands the product's snap-fit stroke, and improves demolding efficiency.
Smart Images

Figure CN224210445U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of mold manufacturing, specifically a secondary telescopic guide for plastic mold manufacturing. Background Technology
[0002] Plastic molds are tools used in the plastics processing industry, working in conjunction with plastic molding machines to give plastic products a complete shape and precise dimensions. Due to the wide variety of plastic types and processing methods, and the varying complexity of plastic molding machines and plastic products, plastic molds also come in a wide variety of types and structures.
[0003] However, existing plastic molds still have the following problems in production:
[0004] When producing plastic products using existing mold cavities, the plastic softens after being heated in the mold. Due to the cooling effect of the mold, the product tends to adhere tightly to the mold surface during the cooling process, making it difficult to demold. This difficulty in demolding can also be caused by excessively high or low mold temperatures, unreasonable cavity design, or other reasons, causing great inconvenience to production. Therefore, it is necessary to develop a secondary telescopic guide for plastic mold production to be used in the existing mold production field. Utility Model Content
[0005] To overcome the shortcomings of existing technologies, when producing plastic products using existing mold cavities, the plastic softens after being heated in the mold, and due to the cooling effect of the mold, the product adheres tightly to the mold surface during the cooling process, making it difficult to demold the plastic product. The difficulty in demolding plastic parts may also be caused by excessively high or low mold temperature, unreasonable cavity design, etc., which brings great inconvenience to production. This utility model proposes a secondary telescopic guide for plastic mold production.
[0006] The technical solution adopted by this utility model to solve its technical problem is: a secondary telescopic guide for plastic mold production, comprising:
[0007] The pressure plate has an installation port in the middle. Multiple first sliders are fixedly mounted on the inner wall of the installation port. One end of the first slider extends out of the pressure plate. Multiple traction grooves are provided on the inner wall of the installation port. The traction grooves are all located between two first sliders. The inner wall of each first slider is provided with a traction groove.
[0008] A secondary telescopic mechanism, comprising a second slider, wherein multiple second sliders are movably assembled with a mounting port.
[0009] Each of the second sliders has a connecting rod fixedly mounted on one end, and a connecting ring is fixedly mounted on one end of each of the multiple connecting rods.
[0010] The lower part of the surface of the second slider is fixedly equipped with a traction slider, and the traction slider is movably assembled with the traction groove.
[0011] Each of the second sliders is fixedly equipped with an operating slider, which is located inside the plurality of second sliders.
[0012] The inner side of the second slider is fitted with a center bracket, which is located inside the connecting ring.
[0013] The three sides of the central slide are all fixedly equipped with guide sliders, which are movably assembled with the traction groove of the first slider.
[0014] The three end faces of the central slide are provided with guide grooves, which are movably assembled with the operating slider of the second slider.
[0015] The bottom of each traction slider is provided with a traction hole, and the bottom of the center section is provided with a guide hole.
[0016] The advantages of this utility model are:
[0017] This invention features a second shrinkage mechanism, which optimizes the first shrinkage. This allows the product to shrink again at the same height and undercut. The second shrinkage mechanism provides a larger extension stroke, increasing product manufacturability. In its retracted state, the second shrinkage mechanism provides sufficient filling space for the injection molding material. When the mold opens, the second shrinkage mechanism extends, assisting in the smooth demolding of the product. This design is achieved through an internal mechanical structure or hydraulic system within the mold, ensuring the accuracy and reliability of the operation. Attached Figure Description
[0018] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0019] Figure 1 This is a schematic diagram of the secondary telescopic bracket for plastic mold production in the mold closing state according to this utility model.
[0020] Figure 2 This is a schematic diagram of the structure of the secondary telescopic slide for plastic mold production of this utility model in the first shrinkage state.
[0021] Figure 3 This is a schematic diagram of the structure of the secondary telescopic slide for plastic mold production of this utility model in the second shrinkage state.
[0022] Figure 4 This is a schematic diagram of the secondary telescopic bracket structure for plastic mold production according to this utility model.
[0023] Figure 5 This is a structural diagram showing the disassembled secondary telescopic guide for plastic mold production according to this utility model.
[0024] In the picture:
[0025] 10. Pressure plate; 11. Mounting port; 12. First slider; 13. Traction groove;
[0026] 20. Secondary telescopic mechanism; 200. Second slider; 201. Connecting rod; 202. Connecting ring; 203. Traction slider; 204. Operating slider; 205. Traction hole; 206. Central slider; 207. Guide hole; 208. Guide slider; 209. Guide groove.
[0027] 21. Traction chute. Detailed Implementation
[0028] 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 scope of protection of the present utility model.
[0029] The following is in conjunction with the appendix Figure 1 —5 provides further detailed description of this application.
[0030] This application discloses a secondary telescopic guide for plastic mold production. (Refer to...) Figures 1-4 A secondary telescopic bracket for plastic mold production includes a pressure plate 10, an installation port 11 located in the middle of the pressure plate 10, a plurality of first sliders 12 fixedly mounted on the inner wall of the installation port 11, one end of each first slider 12 extending out of the pressure plate 10, a plurality of traction grooves 13 located between two first sliders 12, and a traction groove 21 located on the inner wall of each first slider 12, and a secondary telescopic bracket mechanism 20 mounted on the installation port 11.
[0031] In this invention, the secondary telescopic mechanism 20 is used to pull the first slider 12. Through its unique telescopic structure design, the secondary telescopic mechanism 20 achieves precise telescopic movements during the mold injection process. When the mold is closed, the secondary telescopic mechanism 20 is in a contracted state, providing sufficient filling space for the injection material. When the mold is opened, the secondary telescopic mechanism 20 extends, assisting the product to be demolded smoothly. This design is achieved through the internal mechanical structure or hydraulic system of the mold, ensuring the accuracy and reliability of the action.
[0032] Reference Figure 4 and Figure 5 The secondary telescopic mechanism 20 includes a second slider 200. Multiple second sliders 200 move on the mounting port 11 respectively. A connecting rod 201 is fixedly mounted on one end of each second slider 200. A connecting ring 202 is fixedly mounted on one end of each connecting rod 201. A traction slider 203 is fixedly mounted on the lower part of the surface of each second slider 200. The traction sliders 203 move on the traction groove 13 respectively.
[0033] In this invention, the second slider 200 moves on the traction groove 13 via the traction slider 203, causing the device to retract for the first time.
[0034] Reference Figure 5 Each traction slider 203 has a traction hole 205 at its bottom. Each second slider 200 has an operating slider 204 fixedly mounted on it. The operating slider 204 is located inside the multiple second sliders 200. A center bracket 206 is mounted inside the second slider 200. The center bracket 206 is located inside the connecting ring 202. Guide sliders 208 are fixedly mounted on the three sides of the center bracket 206. The guide sliders 208 move on the traction groove 21 of the first slider 12 respectively. Guide grooves 209 are provided on the three end faces of the center bracket 206. The guide grooves 209 are movably assembled with the operating sliders 204 of the second slider 200. A guide hole 207 is provided at the bottom of the center bracket 206.
[0035] In this invention, when the guide slider 208 moves on the traction groove 21 of the first slider 12, the guide groove 209 moves on the operating slider 204 of the second slider 200, causing the equipment to retract a second time, which optimizes the first retraction. This allows the product to retract again at the same height and under the same inverted position. The second retraction results in a larger product snapping stroke, thereby increasing the product's manufacturability.
[0036] Working Principle: The secondary telescopic mechanism 20 is pulled on the first slider 12. Through its unique telescopic structure design, the secondary telescopic mechanism 20 achieves precise telescopic movements during mold injection. When the mold is closed, the second slider 200 moves on the traction groove 13 via the traction slider 203, causing the device to retract for the first time. The guide slider 208 moves on the traction groove 21 of the first slider 12, and the guide groove 209 moves on the operating slider 204 of the second slider 200, causing the device to retract for the second time. This optimizes the first retraction, allowing the product to retract again at the same height and undercut. The secondary telescopic mechanism has a larger product snap-fit stroke, thereby increasing product manufacturability. When the secondary telescopic mechanism 20 is in the retracted state, it provides sufficient filling space for the injection molding material. When the mold is opened, the secondary telescopic mechanism 20 extends, assisting the product to be demolded smoothly. This design is achieved through the internal mechanical structure or hydraulic system of the mold, ensuring the accuracy and reliability of the operation.
[0037] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model.
Claims
1. A secondary telescopic guide for plastic mold production, characterized in that: include: A pressure plate (10) is provided with an installation port (11) in the middle position. Multiple first sliders (12) are fixedly assembled on the inner wall of the installation port (11). One end of the first slider (12) extends out of the pressure plate (10). Multiple traction grooves (13) are provided on the inner wall of the installation port (11). The traction grooves (13) are all located between two first sliders (12). The inner wall of each first slider (12) is provided with a traction groove (21). The secondary telescopic mechanism (20) includes a second slider (200), and multiple second sliders (200) are movably assembled with the mounting port (11).
2. The secondary telescopic guide for plastic mold production according to claim 1, characterized in that: One end of each of the second sliders (200) is fixedly fitted with a connecting rod (201), and one end of each of the multiple connecting rods (201) is fixedly fitted with a connecting ring (202).
3. The secondary telescopic guide for plastic mold production according to claim 2, characterized in that: The lower part of the surface of the second slider (200) is fixedly equipped with a traction slider (203), and the traction slider (203) is movably assembled with the traction groove (13).
4. The secondary telescopic guide for plastic mold production according to claim 3, characterized in that: Each of the second sliders (200) is fixedly equipped with an operating slider (204), and the operating slider (204) is located inside the plurality of second sliders (200).
5. The secondary telescopic guide for plastic mold production according to claim 4, characterized in that: The inner side of the second slider (200) is fitted with a center bracket (206), which is located inside the connecting ring (202).
6. The secondary telescopic guide for plastic mold production according to claim 5, characterized in that: The three sides of the central slide (206) are all fixedly equipped with guide sliders (208), and the guide sliders (208) are movably assembled with the traction grooves (21) of the first slider (12).
7. The secondary telescopic guide for plastic mold production according to claim 6, characterized in that: The three end faces of the central slide (206) are provided with guide grooves (209), and the guide grooves (209) are movably assembled with the operating slider (204) of the second slider (200).
8. The secondary telescopic guide for plastic mold production according to claim 5, characterized in that: The bottom of each traction slider (203) is provided with a traction hole (205), and the bottom of the center bracket (206) is provided with a guide hole (207).