Mold demolding structure
By designing a mold release structure that integrates the first mold and the release component, the problem of damage caused by unidirectional movement of the injection molded body during the demolding process is solved, achieving an efficient and reliable demolding process and improving product quality and production efficiency.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHANGHAI GOOD FAITH ICEST
- Filing Date
- 2025-05-20
- Publication Date
- 2026-05-08
AI Technical Summary
During the mold demolding process, the injection molded body is prone to getting stuck with other surface structures because the mold moves in a unidirectional direction, which can lead to damage, reduce product qualification rate and increase production costs.
The mold demolding structure includes a first mold and a demolding component. The first mold moves along a length direction away from the second side, and the demolding component first moves along a length direction away from the second side, and then moves in the same direction as the first mold. The integrity of the injection molded body is ensured by the cooperation of sliding blocks, grooves, abutment blocks and moving slots.
It achieves complete demolding of the injection molded body, improves production efficiency and product quality, avoids damage to the injection molded body due to jamming of the mold structure, and ensures the accuracy and reliability of the demolding process.
Smart Images
Figure CN224210412U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of mold technology, and in particular to a mold release structure. Background Technology
[0002] In the mold manufacturing field, with the continuous growth of industrial production's demand for various parts, injection mold technology has been widely applied and developed. Injection molding can efficiently manufacture injection molded parts of various shapes and sizes, meeting the precision and quality requirements of different industries.
[0003] In the traditional mold demolding process, in order to remove the injection molded body from the mold, the mold is usually pulled out directly along a certain direction of the injection molded body. This method is simple and direct and is suitable for some injection molded bodies with relatively simple structures.
[0004] However, when dealing with certain special structures of injection molded bodies, if the mold moves only in one direction for demolding, it is easy for it to get stuck on other surfaces of the injection molded body. This may cause damage to the injection molded body during demolding, reduce the product qualification rate, increase production costs, and fail to meet the needs of efficient and high-quality production. Utility Model Content
[0005] This application provides a mold demolding structure to solve the problem that the mold is easily damaged when it moves in a single direction during demolding from an injection molded body with a special structure.
[0006] A mold release structure, comprising:
[0007] The mold body has an internal accommodating space and is capable of injection molding to form an injection molded body. The injection molded body has a first side extending along the length direction and a second side extending along the width direction. The mold body includes a first mold, which corresponds to the first side and is capable of moving along the width direction away from the first side for demolding.
[0008] A demolding component is disposed in the first mold and corresponds to the second side. When the first mold moves, the demolding component can first move along the length direction away from the second side, and then the demolding component moves in the same direction as the first mold.
[0009] By adopting the above technical solution, when the first mold moves, the demolding part first moves along the length direction away from the second side, and then moves in the same direction with the first mold. This avoids damage to the injection molded body due to the mold and the structure on the second side getting stuck during demolding, and can complete the overall demolding process more smoothly, ensuring the integrity of the injection molded body.
[0010] In one embodiment, the demolding component includes a second mold and a first movable component. The second mold corresponds to the second side, and the first movable component is disposed on the side of the second mold away from the second side. The first mold contains the second movable component, and the first movable component and the second movable component cooperate to enable the demolding component to move.
[0011] By adopting the above technical solution, the composition structure of the demolding component is clarified. The first moving component moves in cooperation with the second moving component in the first mold, making the design and implementation of the demolding structure clearer and more operable.
[0012] In one embodiment, the first moving member is a sliding block that extends away from the first side and is inclined toward the second side. The second moving member is a groove, in which both the sliding block and the second mold are disposed. The groove is provided with an abutting block that abuts against the sliding block.
[0013] By adopting the above technical solution, the sliding block extends away from the first side and tilts towards the second side, cooperating with the abutting block in the groove. When the first mold moves, the abutting block pushes the sliding block, and its tilt angle causes the second mold to generate a component force away from the second side, thereby realizing the separation of the second mold. This design is simple and effective and can reliably realize the demolding action.
[0014] In one embodiment, the sliding block is provided with protrusions at both ends of the sliding block along the height direction and away from the second side, the sliding block is T-shaped, and the abutting block abuts against the protrusions.
[0015] By adopting the above technical solution, the sliding block is T-shaped and has protrusions at both ends in the height direction. The protrusions abut against the abutment block, which increases the contact area and stability between the sliding block and the abutment block. On the other hand, the T-shaped structure can better restrict the movement direction of the sliding block in the groove, ensuring the smoothness and accuracy of the demolding process.
[0016] In one embodiment, the mold body includes a side mold, the side mold includes a first mold and a third mold, the third mold is provided with a moving groove, the moving groove includes a first groove extending in the length direction and a second groove extending in the width direction, the second groove is connected to the end of the first groove away from the second side, and the second mold is able to move in the first groove and the second groove under force.
[0017] By adopting the above technical solution, the moving groove includes a first groove and a second groove. The second mold can move in it when subjected to force, which provides precise guidance for the movement of the second mold and ensures that it moves along the length direction (first groove) according to a predetermined trajectory to separate from the second side, and then moves along the width direction (second groove) in the same direction as the first mold, which further improves the accuracy and reliability of demolding.
[0018] In one embodiment, the third mold further includes a limiting block located at the end of the first groove away from the first side, and the lower end of the second mold is provided with an abutment that extends into the first groove and abuts against the limiting block.
[0019] By adopting the above technical solution, the setting of the limiting block and the abutment can accurately limit the movement range of the second mold in the first groove, ensuring that it stops moving along the length direction and starts moving along the width direction at the appropriate position, playing a positioning and control role, making the demolding process more controllable.
[0020] In one embodiment, the protrusion is provided with an abutment groove extending in the width direction, and the first mold is provided with a limiting post, the limiting post extending into the abutment groove and capable of abutting both ends of the abutment groove, the distance between the two ends of the abutment groove in the length direction is the same as the length of the first groove.
[0021] By adopting the above technical solution, the abutment groove on the protrusion cooperates with the limiting post extending into it. The distance between the two ends of the abutment groove is the same as the length of the first groove. This allows for precise control of the movement distance of the second mold in the first groove, ensuring that after the second mold completes the separation action from the second side, it matches the movement state of the first mold, achieving subsequent unidirectional movement and improving the coordination and accuracy of the demolding action.
[0022] In one embodiment, the first mold is further provided with a first locking part, which is located on the side of the limiting post away from the first side. The protrusion is further provided with a second locking part, which is located on the side of the abutment groove away from the first side. The first locking part can cooperate with the second locking part to lock the first mold, which can drive the demolding part to move.
[0023] By adopting the above technical solution, the design of the first and second locking parts enables the first mold to effectively drive the demolding parts to move. Through the cooperation of the two locking parts, the connection between the components is stable and the force transmission is accurate during the demolding process, thereby achieving a reliable demolding action.
[0024] In one embodiment, the first locking part is a buckle, and the second locking part is a slot, wherein the buckle and the slot are locked together.
[0025] By adopting the above technical solution, this connection method is simple, convenient and robust, easy to manufacture and install, and can reduce the manufacturing and maintenance costs of molds while ensuring connection reliability.
[0026] In one embodiment, the mold body further includes a bottom mold and a top mold, the side mold is disposed on the upper end of the bottom mold, the top mold is disposed on the upper end of the side mold and is fixed in cooperation with the bottom mold, and the injection molded body is disposed between the bottom mold, the side mold and the top mold.
[0027] By adopting the above technical solution, the main body of the mold, including the bottom mold, top mold, and side mold, as well as their assembly relationship and the position of the injection body, is clearly defined. This provides a complete framework for the entire mold demolding structure, which helps to fully understand the working principle and demolding process of the mold. It also provides detailed information for the overall design, manufacturing, and assembly of the mold.
[0028] In summary, this application includes at least one beneficial effect:
[0029] 1. When the first mold moves, the demolding part first moves along the length direction away from the second side, and then moves in the same direction as the first mold. This avoids damage to the injection molded body due to the mold and the structure on the second side getting stuck during demolding, and allows the overall demolding process to be completed more smoothly, ensuring the integrity of the injection molded body.
[0030] 2. The moving groove includes a first groove and a second groove. The second mold can move in the groove when subjected to force, which provides precise guidance for the movement of the second mold. It ensures that the second mold moves along the length direction (first groove) according to a predetermined trajectory to separate from the second side, and then moves along the width direction (second groove) in the same direction as the first mold, which further improves the accuracy and reliability of demolding.
[0031] 3. The design of the first and second locking parts enables the first mold to effectively drive the demolding parts to move. Through the cooperation of the two locking parts, the connection between the first mold and the demolding parts is ensured to be stable and the force transmission is accurate during the demolding process, thereby realizing a reliable demolding action. Attached Figure Description
[0032] Figure 1 This is a schematic diagram of the overall structure of a mold demolding structure provided in an embodiment of this application;
[0033] Figure 2 This is a schematic diagram of the overall structure of a side mold and a bottom mold provided in an embodiment of this application;
[0034] Figure 3 This is a schematic diagram of the structure of an injection molded body provided in an embodiment of this application;
[0035] Figure 4This is a schematic diagram of the structure of a first mold provided in an embodiment of this application;
[0036] Figure 5 This is a schematic diagram of a structure for fixing a first mold and a demolding component according to an embodiment of this application;
[0037] Figure 6 This is a schematic diagram of the structure of a demolding component provided in an embodiment of this application;
[0038] Figure 7 This is a schematic diagram of the structure of a third mold provided in an embodiment of this application.
[0039] Explanation of reference numerals in the attached drawings: 1. Mold body; 11. Side mold; 111. First mold; 1111. Groove; 1112. Abutment block; 1113. Limiting post; 1114. First locking part; 112. Third mold; 1121. Moving groove; 1122. Limiting block; 12. Bottom mold; 13. Top mold; 2. Injection body; 21. First side; 22. Second side; 3. Demolding part; 31. Second mold; 311. Abutment body; 32. Sliding block; 321. Protrusion; 3211. Abutment groove; 3212. Second locking part. Detailed Implementation
[0040] The following is in conjunction with the appendix Figure 1-7 The mold demolding structure provided in this application will be described in further detail.
[0041] Example 1
[0042] Please see Figure 1-7 The mold demolding structure provided in this application includes a mold body 1 and a demolding component 3.
[0043] like Figures 1 to 4 As shown, the mold body 1 has an internal accommodating space for injection molding to form an injection molded body 2. The injection molded body 2 has a first side 21 extending along the length direction and a second side 22 extending along the width direction, with the first side 21 and the second side 22 perpendicular to each other. The mold body 1 includes a first mold 111, which corresponds to the first side 21 and can form the structure on the first side 21. The first mold 111 can move along the width direction away from the first side 21 for demolding. The first mold 111 is usually made of a high-strength metal material, such as mold steel, to withstand the high pressure and high temperature during the injection molding process, and its structural shape is adapted to the first side 21 of the injection molded body 2. In practical applications, alloy materials can also be used to make the first mold 111, as long as they meet the requirements for strength and wear resistance. The movement of the first mold 111 can be achieved by a hydraulic drive device or an electric drive device.
[0044] like Figure 5As shown, the demolding component 3 is located inside the first mold 111 of the mold body 1 and corresponds to the second side 22. When the first mold 111 moves, the demolding component 3 can first move along the length direction away from the second side 22 of the injection molded body 2, and then the demolding component 3 moves in the same direction as the first mold 111 to achieve step demolding. This avoids the first mold 111 from contacting the first side 21 and the second side 22. If the first mold 111 moves in a direction away from one side, the structure of the other side will be damaged.
[0045] like Figure 6 As shown, the demolding component 3 includes a second mold 31 and a first moving component. The second mold 31 corresponds to the second side 22. The first moving component is located on the side of the second mold 31 away from the second side 22. The second moving component is provided inside the first mold 111. The first and second moving components cooperate to allow the demolding component 3 to move in a direction away from the second side 22. Specifically, the second mold 31 is generally also made of mold steel, and its shape fits the second side 22 of the injection molded body 2 to form the structure on the second side 22. In this embodiment, the first moving component is a sliding block 32. The sliding block 32 extends in a direction away from the first side 21 and is inclined towards the second side 22. This inclined structure allows it to produce displacement in a specific direction when subjected to force. The sliding block 32 can be made of wear-resistant bronze material, or other materials with good sliding properties, such as polytetrafluoroethylene, can be used instead. The second moving component is a groove 1111. The sliding block 32 and the second mold 31 are both provided in the groove 1111. The groove 1111 has abutment blocks 1112 at both ends along the height direction. The sliding block 32 may be provided with protrusions 321, which are located at both ends of the sliding block 32 along the height direction and away from the second side 22. The two ends of the abutment block 1112 can abut against the protrusions 321 and the second mold 31. The protrusions 321 can also be made of mold steel, or they can be hardened to increase their hardness. The abutment block 1112 is usually made of high-hardness alloy steel, and it cooperates with the protrusions 321 to enable the second mold 31 to move. When the first mold 111 moves, the groove 1111 moves accordingly, and the abutment block 1112 applies a force to the protrusions 321 on the sliding block 32, so that the sliding block 32 is subjected to a force away from the first side 21 and a force away from the second side 22, thereby causing the second mold 31 to separate from the second side 22.
[0046] like Figure 7As shown, the mold body 1 includes a side mold 11, which includes a first mold 111 and a third mold 112. The third mold 112 is provided with a moving groove 1121 and a limiting block 1122. Specifically, the moving groove 1121 includes a first groove extending along the length direction and a second groove extending along the width direction. The second groove is connected to the end of the first groove away from the second side 22. The limiting block 1122 is located at the end of the first groove away from the first side 21 and at the end of the second groove close to the second side 22. The lower end of the second mold 31 is provided with an abutment 311, which extends into the first groove and abuts against the limiting block 1122. The abutment 311 is usually a columnar structure made of metal. Its cooperation with the first groove and the limiting block 1122 ensures that when the second mold 31 is subjected to the force of the sliding block 32, it can only move in the direction of the first groove first, thereby separating from the second side 22. After the abutment 311 moves to the end in the first groove, since the second groove is connected to the first groove, the abutment 311 can continue to move together with the first mold 111 in the second groove.
[0047] Furthermore, the protrusion 321 is provided with an abutment groove 3211, and the first mold 111 is provided with a limiting post 1113. The limiting post 1113 extends into the abutment groove 3211 and can abut against both ends of the abutment groove 3211. The distance between the two ends of the abutment groove 3211 along its length is the same as the length of the first groove. This ensures that the movement range of the limiting post 1113 in the abutment groove 3211 matches the movement range of the second mold 31 in the first groove, thus playing a precise limiting role. Therefore, when the limiting post 1113 moves from one end of the abutment groove 3211 near the first side 21 to the other end, the abutment body 311 can move in the second groove. At this time, the movement of the first mold 111 causes the limiting post 1113 to abut against the abutment groove 3211, thereby moving the demolding part 3 together. The limiting post 1113 is generally cylindrical and made of stainless steel, which has good corrosion resistance and strength.
[0048] The first mold 111 is also provided with a first locking part 1114, which is located at the end of the limiting post 1113 away from the first side 21. The protrusion 321 is also provided with a second locking part 3212, which is located on the side of the abutment groove 3211 away from the first side 21. The first locking part 1114 can cooperate with the second locking part 3212 to lock, so that the first mold 111 drives the demolding part 3 to move. Specifically, the first locking part 1114 and the second locking part 3212 can be coupled by a slot and an elastic buckle. The distance between the first locking part 1114 and the limiting post 1113 is equal to the distance between the end of the abutment groove 3211 away from the first side 21 and the second locking part 3212. Thus, when the limiting post 1113 abuts the end of the abutment groove 3211 away from the first side 21, the first locking part 1114 and the second locking part 3212 are locked together, and the sliding block 32 is fixed to the first mold 111, which facilitates demolding together. At the same time, when preparing for injection molding, the movement of the first mold 111 can drive the sliding block 32 and the second mold 31 to move together, preventing the sliding block 32 from being abutted by the limiting block 1122 when it moves obliquely, which would affect the movement of the second mold 31 in the width direction, making it difficult to enter the first groove for injection molding to form the structure on the second side 22.
[0049] The mold body 1 also includes a bottom mold 12 and a top mold 13. A side mold 11 is disposed on the bottom mold 12, and the top mold 13 is disposed on the upper end of the side mold 11 and is fixedly fitted with the bottom mold 12. The injection molded body 2 is disposed between the bottom mold 12, the side mold 11, and the top mold 13. The bottom mold 12 and the top mold 13 are also made of mold steel. The gaps between them and the side mold 11 together constitute the receiving space of the mold body 1, which is used for injection molding to form the injection molded body 2.
[0050] The implementation principle of this embodiment is as follows: When demolding is required, the first mold 111 moves along the width direction away from the first side 21, and the abutment block 1112 in the groove 1111 applies force to the protrusion 321 of the sliding block 32. Due to the action of the abutment body 311 and the limiting block 1122, the sliding block 32 can only make the second mold 31 move along the direction of the first groove, realizing the separation of the second mold 31 from the second side 22, so that the demolding part 3 gradually emerges from the first mold 111; at the same time, the first mold 111 also drives the limiting post 1113 to move from the end of the abutment groove 3211 near the first side 21 to the other end of the abutment groove 3211, until the limiting post 1113 abuts the end of the abutment groove 3211 away from the first side 21. At this time, the slot and the buckle are locked and fixed, and the abutment body 311 moves to the end of the first groove and is no longer abutted by the limiting block 1122. Thus, the first mold 111 can drive the demolding part 3 to move in the same direction, completing the overall demolding. When preparing for injection molding, since the slot and buckle are still fixed, the first mold 111 can move towards the first side 21 simultaneously with the demolding part 3 until the abutment body 311 of the second mold 31 abuts against the end of the second groove near the first side 21. Then the first mold 111 continues to move so that the inner wall of the groove 1111 can abut against the sliding block 32. Thus, under the restriction of the moving groove 1121, the demolding part 3 can only move in the first groove. At the same time, the buckle disengages from the slot, and the limiting post 1113 gradually moves towards the end of the abutment groove 3211 near the first side 21 until it abuts against the end of the abutment groove 3211 near the first side 21. At this time, the abutment body 311 is located at the end of the first groove near the second side 22, and both the second mold 31 and the first mold 111 are in the injection position, so that they can form the injection molded body 2 together with other molds.
[0051] This step-by-step demolding method avoids the problem of damage to the injection molded body 2 caused by the complex structure in traditional demolding methods, greatly improves production efficiency and product quality, and has made significant improvements and contributions to existing mold demolding technology.
[0052] 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 mold demolding structure, characterized in that, include: The mold body (1) has an internal accommodating space and is capable of injection molding to form an injection molded body (2). The injection molded body (2) has a first side surface (21) extending along the length direction and a second side surface (22) extending along the width direction. The mold body (1) includes a first mold (111). The first mold (111) corresponds to the first side surface (21) and is capable of moving along the width direction away from the first side surface (21) for demolding. The demolding component (3) is disposed on the first mold (111) and corresponds to the second side (22). When the first mold (111) moves, the demolding component (3) can first move along the length direction away from the second side (22), and then the demolding component (3) moves in the same direction as the first mold (111).
2. The mold demolding structure according to claim 1, characterized in that, The demolding component (3) includes a second mold (31) and a first moving component. The second mold (31) corresponds to the second side (22). The first moving component is located on the side of the second mold (31) away from the second side (22). The first mold (111) contains the second moving component. The first moving component and the second moving component cooperate to enable the demolding component (3) to move.
3. The mold demolding structure according to claim 2, characterized in that, The first moving part is a sliding block (32), which extends away from the first side (21) and is inclined toward the second side (22). The second moving part is a groove (1111), in which the sliding block (32) and the second mold (31) are both provided. The groove (1111) is provided with an abutment block (1112), which abuts against the sliding block (32).
4. The mold demolding structure according to claim 3, characterized in that, The sliding block (32) is provided with a protrusion (321), the protrusion (321) is provided at both ends of the sliding block (32) along the height direction and away from the second side (22), the sliding block (32) is T-shaped, and the abutting block (1112) abuts against the protrusion (321).
5. The mold demolding structure according to claim 3, characterized in that, The mold body (1) includes a side mold (11), the side mold (11) includes a first mold (111) and a third mold (112), the third mold (112) is provided with a moving groove (1121), the moving groove (1121) includes a first groove extending in the length direction and a second groove extending in the width direction, the second groove is connected to the end of the first groove away from the second side (22), and the second mold (31) can move in the first groove and the second groove under force.
6. The mold demolding structure according to claim 5, characterized in that, The third mold (112) further includes a limiting block (1122), which is located at the end of the first groove away from the first side (21). The lower end of the second mold (31) is provided with an abutment (311), which extends into the first groove and can abut against the limiting block (1122).
7. The mold demolding structure according to claim 4, characterized in that, The protrusion (321) is provided with an abutment groove (3211) extending in the width direction. The first mold (111) is provided with a limiting post (1113). The limiting post (1113) extends into the abutment groove (3211) and can abut against both ends of the abutment groove (3211). The distance between the two ends of the abutment groove (3211) in the length direction is the same as the length of the first groove.
8. The mold demolding structure according to claim 7, characterized in that, The first mold (111) is also provided with a first locking part (1114), which is located on the side of the limiting post (1113) away from the first side (21). The protrusion (321) is also provided with a second locking part (3212), which is located on the side of the abutment groove (3211) away from the first side (21). The first locking part (1114) can cooperate with the second locking part (3212) to lock, which enables the first mold (111) to drive the demolding part (3) to move.
9. A mold demolding structure according to claim 8, characterized in that, The first locking part (1114) is a buckle, and the second locking part (3212) is a slot. The buckle and the slot are locked and fixed together.
10. A mold demolding structure according to claim 5, characterized in that, The mold body (1) also includes a bottom mold (12) and a top mold (13). The side mold (11) is located on the upper end of the bottom mold. The top mold (13) is located on the upper end of the side mold (11) and is fixed in cooperation with the bottom mold (12). The injection molded body (2) is located between the bottom mold, the side mold (11) and the top mold (13).