Combined base of injection mold
By designing a combined base for injection molds, components such as bottom rings, extrusion plates, mounting clips, and fixing platforms are used to achieve a tight connection between the upper and lower molds, solving the problem of leakage at mold connection gaps and improving the mold's sealing performance and production quality.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SUZHOU JINXIANG PRECISION MOULD CO LTD
- Filing Date
- 2025-03-05
- Publication Date
- 2026-05-12
AI Technical Summary
Existing injection molds are prone to plastic solution leakage at mold joint gaps, resulting in a high rate of defective products.
Design a combined base for injection molds. Through the combination of components such as bottom ring, extrusion plate, mounting clip, gasket and fixing platform, a tight connection between the upper mold and the lower mold is achieved, and the sealing effect is enhanced by the use of bolts and hooks.
It effectively improves the sealing performance of mold connection gaps, reduces the defect rate, and enhances the working sealing performance of injection molds.
Smart Images

Figure CN224224397U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of mold loading equipment, specifically a combined base for injection molds. Background Technology
[0002] Injection molds are specialized tools used in plastic injection molding processes. They are used to inject heated and molten plastic into a mold cavity, which then cools and solidifies to obtain the finished product. Injection molds are widely used in the production of plastic parts and products, and are particularly suitable for mass production of products with complex geometries and high precision requirements, such as automotive parts, electronic casings, home appliances, and toys.
[0003] According to a search of existing Chinese patent number 201920537992.X, an injection mold base that is easy to fix, by setting up a base, slide, box, clamping mechanism, rope winding mechanism and transmission mechanism in cooperation, the problem of traditional injection mold bases having a simple structure and being time-consuming and labor-intensive when fixing the mold, which increases the workload of employees is solved. This injection mold base that is easy to fix has the advantages of easy fixing of injection molds, reduces labor intensity and reduces operating costs.
[0004] However, most existing mold bases can only serve to support and fix the mold body. Since existing injection molds need to inject molten plastic solution into the mold, the mold is basically composed of two parts, upper and lower. At the connection gap between the upper and lower molds, due to the existence of the gap, some molds used for a long time may have some solution leakage. As a result, the leakage of the mold body cannot be well controlled, which leads to a certain defect rate in the production process. Utility Model Content
[0005] The purpose of this utility model is to address the shortcomings of the existing technology by providing a combined base for injection molds, thereby solving the problems mentioned in the background art.
[0006] To achieve the above objectives, this utility model provides the following technical solution: a combined base for an injection mold, comprising a bottom ring, the bottom ring being circular in shape, with an annular horizontal boss extending from its outer surface, and a plurality of extrusion plates fixedly connected to the inner wall surface of the bottom ring. Each extrusion plate has a mounting clip detachably connected to its surface, the number of mounting clips being the same as the number of extrusion plates. A washer is fixedly connected to the end of each mounting clip, and the mounting clips are evenly distributed on the outer wall surface of the washer. A plurality of base plates are evenly distributed on the surface of the annular horizontal boss extending from the outer surface of the bottom ring, and a fixing spoke is fixedly connected to the left and right sides of each base plate. A rivet is fixedly connected to the surface of the fixing spoke, and each base plate is fixedly connected to the surface of the annular horizontal boss extending from the outer surface of the bottom ring via the rivets on the surface of the fixing spoke. An upper mold and a lower mold are detachably connected to the inner wall surface of the washer.
[0007] As a preferred embodiment of this utility model, the surface of the substrate is rotatably connected to a mounting shaft, and the surface of the mounting shaft is fixedly connected to a driving plate, which can effectively ensure the stability of the center of gravity of the entire device and meet the requirements of long-term use of the device.
[0008] As a preferred technical solution of this utility model, the top of the substrate is rotatably connected to a bolt, and the surface of the bolt is threaded with a fixing platform, which more efficiently enhances the matching and coordination of various components during the operation of the overall device and effectively reduces the probability of various unexpected situations that may occur during use.
[0009] As a preferred technical solution of this utility model, the top end of the drive plate is fixedly connected to a hook, and the top end of the hook is hook-shaped. The end of the hook is fixedly connected to the end surface of the bolt. By matching the various components of the overall device during use, the coordination of the overall device is enhanced.
[0010] As a preferred technical solution of this utility model, the outer wall surface of the bottom ring is provided with a sliding groove, and the inner end of the fixed platform slides against the surface of the sliding groove, which greatly enhances the fit strength of the overall device during use and avoids the situation of asymmetrical component matching during use.
[0011] As a preferred technical solution of this utility model, the substrate is evenly distributed on the surface of the bottom ring, and the number of substrates is consistent with the number of extrusion sheets and mounting clips. According to the existing structure, they jointly support the overall device, enhance the coordination performance of the overall device during use, and enhance the durability of the overall device during use.
[0012] As a preferred technical solution of this utility model, the diameter of the washer is smaller than the diameter of the bottom ring, and the bottom ring is sleeved on the lower end of the surface of the washer. By enhancing the flexible control capability of the overall device, the probability of the overall device malfunctioning during use is reduced.
[0013] The beneficial effects of this utility model are:
[0014] The combined base of this injection mold is connected to the connection between the upper and lower molds of the injection mold via a washer. A bottom ring is fitted onto the surface of the washer, and the extrusion plate on the inner wall of the bottom ring is fixed inside the mounting clip on the surface of the washer. The rotation of the washer at the lower mold connection point drives the fixed platform to lock the surface of the washer, thereby achieving flexible control of the entire device, enhancing the practicality of the entire device, improving the defect of poor sealing of the surface connection gap between the upper and lower molds in existing injection molds, and improving the sealing effect of the injection mold during operation. Attached Figure Description
[0015] Figure 1 This is a schematic diagram of the overall appearance and structure of the present utility model;
[0016] Figure 2 This is a side view of the overall structure of the fixed platform of this utility model;
[0017] Figure 3 This is a front view of the overall structure of the fixed platform of this utility model;
[0018] Figure 4 This utility model Figure 1 Enlarged schematic diagram of the structure at point A in the middle.
[0019] In the diagram: 1. Bottom ring; 2. Bottom plate; 3. Fixed spokes; 4. Mounting shaft; 5. Drive plate; 6. Hook; 7. Bolt; 8. Fixing platform; 9. Slide groove; 10. Extrusion plate; 11. Mounting clip; 12. Washer; 13. Upper die; 14. Lower die. Detailed Implementation
[0020] 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.
[0021] In the description of this utility model, it should be noted that the terms "upper," "lower," "inner," "outer," "front end," "rear end," "both ends," "one end," and "the other end," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.
[0022] like Figure 1-4 As shown in this embodiment: a combined base for an injection mold includes a bottom ring 1. The bottom ring 1 is circular in shape, and a layer of annular horizontal bosses extends from the outer surface of the bottom ring 1. A plurality of extrusion plates 10 are fixedly connected to the inner wall surface of the bottom ring 1. Mounting clips 11 are detachably connected to the surface of the extrusion plates 10, and the number of mounting clips 11 is the same as the number of extrusion plates 10. The mounting clips 11 and the extrusion plates 10 are used to assemble and fix the gasket 12 to the bottom ring 1. The end of the mounting clip 11 is fixedly connected to the gasket 12, and the mounting clips 11 are evenly distributed on the outer wall surface of the gasket 12. The annular bosses extending from the outer surface of the bottom ring 1... The surface of the horizontal boss has several base plates 2 evenly distributed. The base plates 2 are installed on the outer wall surface of the bottom ring 1 to provide a platform for locking the washer 12. Each base plate 2 has a fixed spoke 3 fixedly connected to the left and right sides of its surface. The surface of the fixed spoke 3 is fixedly connected to the rivet. Each base plate 2 is fixedly connected to the surface of the annular horizontal boss extending from the outer surface of the bottom ring 1 by the rivet on the surface of the fixed spoke 3. The inner wall surface of the washer 12 is detachably connected to the upper mold 13 and the lower mold 14. The base plates 2 are installed on the outer wall surface of the bottom ring 1 by the fixed spoke 3, thereby strengthening the stability of the locking of the bottom ring 1.
[0023] Furthermore, the surface of the film 2 is rotatably connected to the mounting shaft 4, and the surface of the mounting shaft 4 is fixedly connected to the drive plate 5. The mounting shaft 4 provides support for the drive plate 5, thereby facilitating the operation of the traction hook 6.
[0024] Furthermore, the top of the substrate 2 is threadedly connected to a bolt 7, and the surface of the bolt 7 is threadedly fitted with a fixing platform 8. The fixing platform 8 is used to slide and lock inside the groove 9, thereby enhancing the sealing effect on the gasket 12.
[0025] Furthermore, a hook 6 is fixedly connected to the top of the drive plate 5, and the top of the hook 6 is hook-shaped. The end of the hook 6 is fixedly connected to the end surface of the bolt 7. The hook 6 is used to reinforce the fixed platform 8, thereby preventing the fixed platform 8 from detaching.
[0026] Furthermore, a groove 9 is provided on the outer wall surface of the bottom ring 1, and the inner end of the fixing platform 8 slides against the surface of the groove 9. The groove 9 is used to accommodate the fixing platform 8 for locking, thereby enhancing the stability of the extrusion sheet 10.
[0027] Furthermore, the substrates 2 are evenly distributed on the surface of the bottom ring 1, and the number of substrates 2 is the same as the number of extrusion plates 10 and mounting clips 11. The gasket 12 is assembled with the bottom ring 1 by the extrusion plates 10 and mounting clips 11.
[0028] Furthermore, the diameter of the washer 12 is smaller than the diameter of the bottom ring 1, and the bottom ring 1 is fitted onto the lower end of the surface of the washer 12. The bottom ring 1 is used to lock the washer 12, thereby enhancing the sealing performance of the washer 12 on the surface of the lower mold.
[0029] The usage method of this embodiment is as follows: When using it, please refer to... Figure 1-4 First, the operator needs to manually slip the washer 12 onto the surface of the lower mold 14 of the injection mold and place it at the connection between the lower mold 14 and the upper mold 13. The washer 12 covers the gap between the upper mold 13 and the lower mold 14. Then, the operator manually slips the bottom ring 1 onto the surface of the washer 12 and, aligning it, inserts the extrusion piece 10 on the inner wall surface of the bottom ring 1 into the corresponding mounting clip 11, thereby assembling and fixing the bottom ring 1 and the washer 12. Finally, the operator manually removes the washer 1... 2. Tightening is performed. By tightening the washer 12, the fixed platform 8 installed on the outer wall surface of the bottom ring 1 slides inside the surface of the slide groove 9. Then, the displacement of the fixed platform 8 synchronously pulls the bolt 7 to drive the hook 6 to rotate, so that the hook end of the hook 6 engages with the edge of the outer surface of the fixed platform 8. The hook 6 is supported by the drive plate 5 and the mounting shaft 4, thereby locking the surface of the washer 12, thus strengthening the sealing and protection effect of the gap at the connection between the upper mold 13 and the lower mold 14.
[0030] The above are merely preferred embodiments of this utility model, but the scope of protection of this utility model is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in this utility model, based on the technical solution and inventive concept of this utility model, should be included within the scope of protection of this utility model.
Claims
1. A combined base for an injection mold, comprising a bottom ring (1), characterized in that: The bottom ring (1) is circular in shape, and a layer of annular horizontal protrusion extends from the outer surface of the bottom ring (1). Several extrusion plates (10) are fixedly connected to the inner wall surface of the bottom ring (1). Mounting clips (11) are detachably connected to the surface of the extrusion plates (10), and the number of mounting clips (11) is the same as that of the extrusion plates (10). Washers (12) are fixedly connected to the ends of the mounting clips (11), and the mounting clips (11) are evenly distributed on the outer wall surface of the washers (12). The outer surface of the ring (1) extends to the surface of the annular horizontal boss, and several base pieces (2) are distributed at equal intervals. Each base piece (2) has a fixed spoke (3) fixedly connected to the left and right sides of its surface. The surface of the fixed spoke (3) is fixedly connected to a rivet. Each base piece (2) is fixedly connected to the surface of the annular horizontal boss extending from the outer surface of the bottom ring (1) by the rivet on the surface of the fixed spoke (3). The inner wall surface of the washer (12) is detachably connected to the upper mold (13) and the lower mold (14).
2. The combined base of an injection mold according to claim 1, characterized in that: The surface of the substrate (2) is rotatably connected to the mounting shaft (4), and the surface of the mounting shaft (4) is fixedly connected to the drive plate (5).
3. The combined base of an injection mold according to claim 2, characterized in that: The top of the substrate (2) is threadedly connected to a bolt (7), and the surface of the bolt (7) is threadedly fitted with a fixing platform (8).
4. The combined base of an injection mold according to claim 3, characterized in that: The top end of the drive plate (5) is fixedly connected to a hook (6), and the top end of the hook (6) is hook-shaped, while the end of the hook (6) is fixedly connected to the end surface of the bolt (7).
5. The combined base of an injection mold according to claim 4, characterized in that: The outer wall surface of the bottom ring (1) is provided with a groove (9), and the inner end of the fixed platform (8) slides against the surface of the groove (9).
6. The combined base of an injection mold according to claim 1, characterized in that: The substrates (2) are evenly distributed on the surface of the bottom ring (1), and the number of substrates (2) is the same as the number of extrusion sheets (10) and mounting clips (11).
7. The combined base of an injection mold according to claim 1, characterized in that: The diameter of the washer (12) is smaller than the diameter of the bottom ring (1), and the bottom ring (1) is fitted onto the lower end of the surface of the washer (12).