Secondary demolding mechanism for side mold

The side mold two-stage demolding mechanism achieves precise forming and two-stage demolding of workpieces with angled slots by setting forming grooves and oblique guide concave surfaces on the reference mold, combined with demolding modules and oblique inserts. This solves the problem of incomplete demolding in the prior art and improves production efficiency and product quality.

CN224183631UActive Publication Date: 2026-05-01SHANGHAI GOOD FAITH ICEST
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
SHANGHAI GOOD FAITH ICEST
Filing Date
2025-05-30
Publication Date
2026-05-01

AI Technical Summary

Technical Problem

Existing demolding mechanisms are unable to effectively handle complex structures with angled slots, leading to workpiece damage or incomplete demolding, which affects product quality and production efficiency.

Method used

A two-stage demolding mechanism with side molds is adopted. By setting forming grooves and oblique guide concave surfaces on the reference mold, combined with demolding modules and oblique inserts, two-stage demolding of the workpiece is achieved, ensuring the accurate forming and demolding of the oblique slots.

Benefits of technology

It improves demolding efficiency and product quality, avoids workpiece damage, ensures the precision and integrity of workpiece forming, and enhances the stability and reliability of the demolding process.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to a side mold two-stage demolding mechanism which comprises a mold body, the mold body comprises a fixed mold and a movable mold, and the movable mold is arranged at the upper end of the fixed mold; the demolding assembly comprises reference molds symmetrically arranged on the fixed mold, adjusting columns are arranged on the front face and the rear face of one side of each reference mold, demolding blocks are arranged on the adjusting columns in a sliding mode, inclined inserting blocks are used for forming inclined inserting grooves of workpieces, and a plurality of forming grooves are formed between the symmetrically-arranged reference molds; inclined guide concave surfaces used for placing inclined insertion blocks are arranged on the reference mold corresponding to the forming grooves, the ends, away from the forming grooves, of the inclined insertion blocks are connected with one side of the top of the demolding block, and the demolding block abuts against the reference mold on the adjusting column. The demolding structure of the mold is optimized, the better demolding effect can be achieved, the stability and reliability of demolding operation are guaranteed, and the mold is matched with forming of a workpiece with a chute.
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Description

A two-stage demolding mechanism for side molds Technical Field

[0001] This application relates to the technical field of injection molds, and in particular to a two-stage demolding mechanism for side molds. Background Technology

[0002] Currently, the demolding mechanism is a key component for achieving efficient product manufacturing. With the continuous development of the manufacturing industry, the requirements for the precision and production efficiency of various parts are becoming increasingly stringent, and mold design and demolding methods are constantly being improved. A high-precision demolding mechanism can ensure product quality, improve production stability, reduce defect rates, and thus lower production costs, driving the entire manufacturing industry towards a higher level of development. Moreover, with the widespread adoption of automated production, the performance of the demolding mechanism directly affects the operating efficiency and automation level of the production line, highlighting its growing importance.

[0003] Demolding mechanisms have significant drawbacks when handling workpieces with complex structures such as angled slots. Unidirectional ejection demolding cannot adapt to angled structures, easily causing workpiece damage or incomplete demolding. While slider demolding and angled ejector demolding can handle some complex shapes, they are still difficult to precisely control the forming and demolding of angled slots, resulting in low forming accuracy and affecting product quality.

[0004] In view of the aforementioned technologies, it is necessary to propose a two-stage demolding mechanism for the side mold to solve the above problems. Summary of the Invention

[0005] To solve the aforementioned technical problem, this application provides a two-stage demolding mechanism for side molds.

[0006] This application provides a two-stage demolding mechanism for side molds, which adopts the following technical solution:

[0007] A two-stage demolding mechanism for side molds, comprising:

[0008] The mold body includes a fixed mold and a moving mold, wherein the moving mold is disposed at the upper end of the fixed mold;

[0009] A demolding assembly is disposed between the fixed mold and the moving mold. The demolding assembly includes a reference mold symmetrically disposed on the fixed mold, an adjusting post disposed on both the front and back of one side of the reference mold, a demolding module slidably disposed on the adjusting post, and an inclined insert for forming an inclined slot in the workpiece. A plurality of forming grooves are provided between the symmetrically disposed reference molds. An inclined guide concave surface for placing the inclined insert is provided on the reference mold corresponding to the plurality of forming grooves. The end of the inclined insert away from the forming groove is connected to the top side of the demolding module. The demolding module abuts against the reference mold on the adjusting post.

[0010] By adopting the above technical solution, the moving mold is set on the upper end of the fixed mold. When the mold is opened and closed, the moving mold can move relative to the fixed mold. The demolding assembly is set between the fixed mold and the moving mold. The symmetrical reference mold is installed on the fixed mold. The adjusting columns set on the front and rear sides of one side of the reference mold provide a sliding track for the demolding module, so that the demolding module can slide stably along the adjusting columns and hold the reference mold. The forming groove between the reference molds provides space for the workpiece forming and ensures the forming accuracy of the workpiece. The sliding of the demolding module on the adjusting columns can drive the inclined insert block connected to it to move. The inclined insert block is used for the inclined slot forming of the workpiece and is placed at the inclined guide concave surface of the corresponding forming groove of the reference mold. In this way, during the demolding process, the demolding module realizes the first-level demolding movement, drives the inclined insert block to move, accurately disengages from the inclined slot of the workpiece, and slides and is limited in the inclined guide concave surface by the inclined insert block, thereby driving the reference mold to separate and realize the second-level demolding movement. The overall structure realizes the function of two-level demolding of the side mold, improving demolding efficiency and product quality.

[0011] Optionally, a guide post is provided in the middle of one side of the reference mold, the demolding module is slidably disposed on the guide post, and a first elastic element is provided on the outer surface of the guide post between the reference mold and the demolding module.

[0012] By adopting the above technical solution, the guide post can provide guidance for the demolding module, allowing the demolding module to slide along the guide post, ensuring the stability and accuracy of the demolding module's movement; the first elastic element can provide buffering and resetting functions during the demolding module's movement, assisting the demolding module in better completing the demolding action.

[0013] Optionally, the demolding module is provided with a limiting groove, the guide post extends through the demolding module into the limiting groove, and a limiting block is provided at the end of the guide post away from the reference mold, the limiting block being slidably disposed in the limiting groove.

[0014] By adopting the above technical solution, when the demolding module slides on the adjusting column or guide column, the limiting block moves in the limiting groove. This structure makes the sliding of the demolding module have a clear range limitation, avoiding excessive sliding of the demolding module and causing it to leave its normal working position. This ensures that the demolding module can stably and accurately complete the demolding action during the mold opening and closing process, improves the reliability and stability of the demolding process, and ensures the normal operation and demolding accuracy of the entire side mold secondary demolding mechanism.

[0015] Optionally, a horizontal insert is provided on the side of the reference mold and below the inclined insert, with one end of the horizontal insert extending through the molding groove.

[0016] By adopting the above technical solution, in conjunction with the oblique insert block, the forming of slot structures in different directions of the workpiece can be realized more comprehensively, which helps to improve the integrity and accuracy of workpiece forming.

[0017] Optionally, the fixed mold and the demolding module are provided with overlapping and penetrating positioning holes, and positioning rods are obliquely inserted into the positioning holes.

[0018] By adopting the above technical solution, the positioning function between the fixed mold and the demolding mold is realized, ensuring the accurate relative position of the two and improving the stability and precision of the workpiece forming process.

[0019] Optionally, a positioning module is provided on the upper surface of the reference mold corresponding to the upper end of the inclined insert block near the molding groove.

[0020] By adopting the above technical solution, the upper end of the inclined insert block is positioned near the forming groove, which improves the stability and accuracy of the inclined insert block during the forming process and ensures the forming quality of the workpiece.

[0021] Optionally, the mold body further includes a support block, which is disposed on both sides of the bottom of the fixed mold. The bottom of the support block is provided with a number of combination modules, and the combination modules are provided with a combination plate on the side of the support block. The combination modules are fixedly connected to the side of the support block through the combination plate.

[0022] By adopting the above technical solution, the fixed mold can be supported from both sides to ensure its stability; the combined module is fixedly connected to the side of the support block through the combined plate, which can enhance the stability and connection strength of the overall structure.

[0023] Optionally, a plurality of bearing rods are provided at the upper end of the combined module and between the support blocks, the bearing rods are in contact with the bottom of the fixed mold, and a second elastic element is provided on the outside of the bearing rods and relative to the bottom of the fixed mold.

[0024] By adopting the above technical solution, the bearing rod can support the fixed mold, and the second elastic element can buffer the pressure on the fixed mold and prevent the fixed mold from being damaged due to excessive force.

[0025] In summary, this application includes at least one of the following beneficial technical effects:

[0026] 1. The demolding assembly can perform two-stage demolding of workpieces with angled slots, solving the problem that single-direction demolding cannot adapt to angled structures, and avoiding workpiece damage and incomplete demolding;

[0027] 2. The reference mold has an inclined guide concave surface corresponding to the forming groove. The inclined insert is installed in the inclined guide concave surface. During the demolding process, the inclined guide concave surface provides precise guidance for the inclined insert, so that the inclined insert can move according to the predetermined trajectory, thereby accurately controlling the forming and demolding of the inclined slot, greatly improving the forming accuracy and ensuring product quality. Attached Figure Description

[0028] Figure 1 is a three-dimensional view (without moving the mold) of a two-stage demolding mechanism for a side mold in this application.

[0029] Figure 2 is a schematic diagram of the demolding component of a two-stage demolding mechanism for side molds in this application.

[0030] Figure 3 is an exploded view of the reference mold portion of a two-stage demolding mechanism for side molds in this application.

[0031] Figure 4 is an overall three-dimensional view of a two-stage demolding mechanism for side molds in this application.

[0032] Figure 5 is an enlarged schematic diagram of the structure at point A in Figure 2.

[0033] In the diagram: 1. Mold body; 11. Fixed mold; 12. Moving mold; 13. Support block; 14. Combination module; 15. Combination plate; 2. Demolding assembly; 21. Reference mold; 22. Adjusting column; 23. Demolding module; 231. Limiting groove; 24. Angled insert; 25. Forming groove; 26. Angled guide concave surface; 27. Guide column; 271. Limiting block; 28. First elastic element; 29. ​​Horizontal insert; 3. Positioning hole; 4. Positioning rod; 5. Positioning module; 6. Bearing rod; 7. Second elastic element. Detailed Implementation

[0034] The present application will be further described in detail below with reference to Figures 1-5.

[0035] Referring to Figures 1-4, this application discloses a two-stage demolding mechanism for a side mold, including: a mold body 1 and a demolding component 2.

[0036] The mold body 1 includes a fixed mold 11 and a moving mold 12, with the moving mold 12 positioned at the upper end of the fixed mold 11. The demolding assembly 2 is positioned between the fixed mold 11 and the moving mold 12. The demolding assembly 2 includes a reference mold 21 symmetrically arranged on the fixed mold, an adjusting post 22 positioned on one side of the reference mold 21 at both the front and back, a demolding module 23 slidably arranged on the adjusting post 22, and an inclined insert 24 for forming inclined slots in the workpiece. Several forming grooves 25 are provided between the symmetrically arranged reference molds 21. An inclined guide concave surface 26 for placing the inclined insert 24 is provided on the reference mold 21 corresponding to the several forming grooves 25. The end of the inclined insert 24 away from the forming groove 25 is connected to the top side of the demolding module 23. The demolding module 23 abuts against the reference mold 21 on the adjusting post 22.

[0037] The moving mold 12 is positioned above the fixed mold 11. When the mold opens and closes, the moving mold 12 can move relative to the fixed mold 11. The demolding assembly 2 is positioned between the fixed mold 11 and the moving mold 12. Symmetrical reference molds 21 are mounted on the fixed mold 11. Adjusting columns 22 positioned on the front and rear sides of one side of the reference mold 21 provide a sliding track for the demolding module 23, allowing the demolding module 23 to slide stably along the adjusting columns 22 and hold against the reference mold 21. The forming groove 25 between the reference molds 21 provides space for workpiece forming, ensuring the forming accuracy of the workpiece. The sliding of the demolding module 23 on the adjusting columns 22 can drive the inclined insert block 24 connected to it. The movable, angled insert 24 is used for forming the angled slot of the workpiece and is placed at the angled guide concave surface 26 of the corresponding forming groove 25 of the reference mold 21. In this way, during the demolding process, the first-level demolding movement is achieved by the demolding module 23, which drives the angled insert 24 to move and accurately disengage from the angled slot of the workpiece. The angled insert 24 slides and is limited in the angled guide concave surface 26, thereby driving the reference mold 21 to separate and achieve the second-level demolding movement. The overall structure realizes the function of two-level demolding of the side mold, which can effectively adapt to the 45° angled slot on the workpiece, improving demolding efficiency and product quality.

[0038] Referring to Figures 2 and 3, in this embodiment, more specifically, a guide post 27 is provided in the middle of one side of the reference mold 21, and the demolding module 23 is slidably disposed on the guide post 27. A first elastic element 28 is provided on the outer surface of the guide post 27 and between the reference mold 21 and the demolding module 23. The first elastic element 28 is a spring. The guide post 27 can provide a guiding function for the demolding module 23, so that the demolding module 23 slides along the guide post 27, ensuring the stability and accuracy of the movement of the demolding module 23. The first elastic element 28 can provide a buffering and resetting function during the movement of the demolding module 23, assisting the demolding module 23 to better complete the demolding action.

[0039] Referring to Figures 1 and 2, in this embodiment, more specifically, the demolding module 23 is provided with a limiting groove 231, and the guide post 27 extends through the demolding module 23 into the limiting groove 231. A limiting block 271 is provided at the end of the guide post 27 away from the reference mold 21. The limiting block 271 is slidably disposed in the limiting groove 231. When the demolding module 23 slides on the adjusting post 22 or the guide post 27, the limiting block 271 moves within the limiting groove 231. This structure makes the sliding of the demolding module 23 have a clear range limitation, avoiding excessive sliding of the demolding module 23 and causing it to deviate from its normal working position. This ensures that the demolding module 23 can stably and accurately complete the demolding action during the mold opening and closing process, improves the reliability and stability of the demolding process, and ensures the normal operation and demolding accuracy of the entire side mold secondary demolding mechanism.

[0040] Referring to Figure 3, in this embodiment, more specifically, a horizontal insert 29 is provided on the side of the reference mold 21 and below the inclined insert 24. One end of the horizontal insert 29 extends through to the forming groove 25. Together with the inclined insert 24, it can more comprehensively realize the forming of slot structures in different directions of the workpiece, which helps to improve the integrity and accuracy of the workpiece forming.

[0041] In this embodiment, more specifically, the fixed mold 11 and the ejector module 23 are provided with overlapping and penetrating positioning holes 3, and positioning rods 4 are inclinedly inserted into the positioning holes 3 to realize the positioning function between the fixed mold 11 and the ejector module 23, ensuring that their relative positions are accurate and improving the stability and accuracy of the workpiece forming process.

[0042] Referring to Figure 1, in this embodiment, more specifically, a positioning module 5 is provided on the upper surface of the reference mold 21 corresponding to the upper end of the inclined insert 24 near the forming groove 25, to position the upper end of the inclined insert 24 near the forming groove 25, thereby improving the stability and accuracy of the inclined insert 24 during the forming process and ensuring the forming quality of the workpiece.

[0043] Referring to Figure 1, in this embodiment, more specifically, the mold body 1 also includes a support block 13. The support block 13 is disposed on both sides of the bottom of the fixed mold 11. Several sets of combined modules 14 are provided at the bottom of the support block 13. The combined modules 14 and the sides of the support block 13 are provided with combined plates 15. The combined modules 14 are fixedly connected to the sides of the support block 13 through the combined plates 15, which can support the fixed mold 11 from both sides and ensure the stability of the fixed mold 11. The fixed connection between the combined modules 14 and the sides of the support block 13 through the combined plates 15 can enhance the stability and connection strength of the overall structure.

[0044] Referring to Figure 2, in this embodiment, more specifically, a plurality of bearing rods 6 are provided at the upper end of the combined module 14 and between the support blocks 13. The bearing rods 6 are in contact with the bottom of the fixed mold 11. A second elastic element 7 is provided on the outside of the bearing rods 6 and relative to the bottom of the fixed mold 11. The second elastic element 7 is a spring. The bearing rods 6 can support the fixed mold 11, and the second elastic element 7 can buffer the pressure on the fixed mold 11 and prevent the fixed mold 11 from being damaged due to excessive force.

[0045] The implementation principle of a two-stage demolding mechanism for a side mold in this application embodiment is as follows: During the demolding process, the moving mold 12 moves upward, and the demolding module 23 slides under the guidance of the adjusting column 22 and the guide column 27, driving the inclined insert block 24 to disengage from the inclined slot of the workpiece, thus realizing the first demolding; by the inclined insert block 24 sliding and being limited in the inclined guide concave surface 26, the reference mold 21 is driven to separate to realize the second-stage demolding movement, and the overall structure realizes the function of two-stage demolding of the side mold.

[0046] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A two-stage demolding mechanism for side molds, characterized in that, include: The mold body (1) includes a fixed mold (11) and a moving mold (12), the moving mold (12) being disposed at the upper end of the fixed mold (11); the demolding assembly (2) is disposed between the fixed mold (11) and the moving mold (12), the demolding assembly (2) including a reference mold (21) symmetrically disposed on the fixed mold, an adjusting column (22) disposed on both the front and rear sides of one side of the reference mold (21), a demolding module (23) slidably disposed on the adjusting column (22), and a tool for working. The inclined insert (24) is formed by an inclined slot. A number of forming grooves (25) are provided between the symmetrically arranged reference molds (21). The reference molds (21) are provided with inclined guide concave surfaces (26) for placing the inclined insert (24) corresponding to the number of forming grooves (25). One end of the inclined insert (24) away from the forming groove (25) is connected to the top side of the release module (23). The release module (23) abuts against the reference mold (21) on the adjusting column (22).

2. The two-stage demolding mechanism for a side mold according to claim 1, characterized in that: A guide post (27) is provided in the middle of one side of the reference mold (21), and the demolding module (23) is slidably disposed on the guide post (27). A first elastic element (28) is provided on the outer surface of the guide post (27) and between the reference mold (21) and the demolding module (23).

3. The two-stage demolding mechanism for a side mold according to claim 2, characterized in that: The detachment module (23) is provided with a limiting groove (231), and the guide post (27) extends through the detachment module (23) into the limiting groove (231). A limiting block (271) is provided at one end of the guide post (27) away from the reference module (21), and the limiting block (271) is slidably disposed in the limiting groove (231).

4. The two-stage demolding mechanism for a side mold according to claim 1, characterized in that: A horizontal insert (29) is provided on the side of the reference mold (21) and below the inclined insert (24), with one end of the horizontal insert (29) extending through the molding groove (25).

5. The two-stage demolding mechanism for a side mold according to claim 1, characterized in that: The fixed mold (11) and the release mold (23) are provided with overlapping and penetrating positioning holes (3), and positioning rods (4) are obliquely inserted into the positioning holes (3).

6. The two-stage demolding mechanism for a side mold according to claim 1, characterized in that: A positioning module (5) is provided on the upper surface of the reference mold (21) on the side of the inclined insert (24) near the molding groove (25).

7. The two-stage demolding mechanism for a side mold according to claim 1, characterized in that: The mold body (1) also includes a support block (13), which is disposed on both sides of the bottom of the fixed mold (11). Several sets of combination modules (14) are provided at the bottom of the support block (13). The combination module (14) and the side of the support block (13) are provided with a combination plate (15). The combination module (14) is fixedly connected to the side of the support block (13) through the combination plate (15).

8. The two-stage demolding mechanism for a side mold according to claim 7, characterized in that: A plurality of bearing rods (6) are provided at the upper end of the combined module (14) and between the support blocks (13). The bearing rods (6) are in contact with the bottom of the fixed mold (11). A second elastic element (7) is provided on the outside of the bearing rods (6) and relative to the bottom of the fixed mold (11).