Demolding mechanism with angle pin embedded sliding block and injection mold
By designing a coordinated structure of oblique pins and sliders in the demolding mechanism, combined with the auxiliary functions of the moving control parts and springs, the problem that the traditional demolding mechanism cannot handle the inverted structure in multiple directions is solved, a stable and reliable demolding process is achieved, and production costs are reduced.
Patent Information
- Application Number
- CN202421499100.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-06-28
- Publication Date
- 2025-05-16
- Estimated Expiration
- 2034-06-28
AI Technical Summary
Traditional demolding mechanisms with inclined pin embedded sliders cannot effectively handle the inverted structures in multiple different directions on the product simultaneously, resulting in unstable and complex mold release process.
A mold release mechanism with an inclined pin embedded slider is designed. Through the collaborative design of the inclined pin and the slider, combined with the auxiliary functions of the moving control, the bundle block and the spring, the precise movement of the slider in the inclined pin and the separation of the inclined pin and the inverted structure are achieved.
This design can effectively handle inverted structures in multiple different directions, improve the stability and reliability of the mold release process, simplify structural design, reduce manufacturing and maintenance costs, and meet efficient production needs.
Smart Images
Figure CN222875190U_ABST
Abstract
Description
Technical Field
[0001] The present application relates to the field of mold technology, and in particular to a demoulding mechanism and an injection mold with an inclined pin and an embedded slider. Background Art
[0002] The development of injection molds plays a key role in the manufacturing industry, and its technological progress and innovation directly affect the quality, production efficiency and cost control of plastic products. In the production process of plastic products, it is usually necessary to consider how to effectively demould the product, especially when the product has a complex structure and multiple undercut structures.
[0003] Traditionally, the oblique pin is a common demoulding tool, which pushes the product out of the mold by moving at a certain angle. However, the design of the oblique pin limits it to effectively demoulding the undercut structure in a precise direction. For products with undercut structures in multiple directions or complex layouts, the single direction design of the oblique pin cannot effectively handle all situations, which requires that the product design may need to be adjusted to adapt to the limitations of the mold.
[0004] In order to solve this problem, some complicated mechanisms have appeared in the prior art. The prior art has disclosed a demoulding mechanism with undercuts in two directions and an inclined pin embedded in the slider, which has the defects of complex structure, instability and difficulty in parts processing. Utility Model Content
[0005] In order to solve the problem of demoulding undercut structures in multiple different directions on a product, the present application provides a demoulding mechanism and an injection mold with an inclined pin and an embedded slider.
[0006] The present application provides a demoulding mechanism with an inclined pin embedded in a slider and an injection mold adopting the following technical solutions:
[0007] A demoulding mechanism with an inclined pin embedded in a slider is used for demoulding a mold and a product, the mold comprising a lower mold, the lower mold comprising a mold core and a fixing plate arranged opposite to the mold core, the mold core is provided with a cavity corresponding to the product; the demoulding mechanism with an inclined pin embedded in a slider comprises an inclined pin, the inclined pin is passed through the mold core, and the top surface and side surface of the inclined pin are in contact with the product, and the inclined pin is provided with a groove corresponding to the undercut structure of the product;
[0008] A slider, the slider is embedded in the oblique pin, the slider is partially inserted into the groove and contacts the undercut structure, and the slider slides in the oblique pin;
[0009] A bundle block, the bundle block is passed through the mold core and fixed to the fixed plate, and the bundle block is in contact with the slider;
[0010] A moving control member, wherein the moving control member limits the moving stroke of the slider;
[0011] When opening the mold, the mold core is driven to move, and the inclined pin, the slider and the product are driven to move, so that the bundle block releases the restriction on the slider, and the slider moves in the inclined pin to the side away from the undercut structure and separates from the undercut structure; the inclined pin is driven to be ejected, and the inclined pin drives the slider and the product to move obliquely upward, so that the inclined pin is separated from the undercut structure, and the product is demoulded.
[0012] By adopting the above technical solution, when the mold is opened, the mold core is driven to move, and the mold core drives the inclined pin, the slider and the product to move together. The constraint of the bundle block makes the slider keep in contact with the undercut structure in the initial stage. When the mold is opened, as the mold core moves, the bundle block will gradually release the constraint imposed on the slider. After the constraint is released, the slider will move inside the inclined pin to the side away from the undercut structure and gradually break away from the undercut structure. After the slider moves out of the undercut structure, the inclined pin is driven to be ejected. The ejection action of the inclined pin drives the slider and the product to move obliquely upward, and the inclined pin gradually breaks away from the undercut structure, so that the inclined pin is completely separated from the undercut structure. The whole demoulding work is completed; through the design of the oblique pin and the slider, the undercut structures in multiple directions on the product can be effectively handled, thereby solving the problem that the traditional demoulding mechanism with an oblique pin embedded in the slider cannot handle undercuts in multiple directions at the same time. In this process, the mobile control part ensures the accurate movement of the slider, and ensures the stability and reliability of the demoulding process. Compared with other complex multi-directional demoulding mechanisms with oblique pins embedded in the slider, the demoulding mechanism with an oblique pin embedded in the slider of the present application has a relatively simple design structure, is easy to manufacture and maintain, and can meet the needs of efficient production.
[0013] In a specific possible implementation scheme, the movable control member includes a travel screw, the slider is provided with a control groove, one end of the nut of the travel screw is located in the control groove, and the other end passes through the slider and is inserted into the oblique pin and fixed to the oblique pin, and the travel screw is slidably connected to the slider.
[0014] By adopting the above technical solution, after the bundle block releases the constraint on the slider, the slider will move inside the oblique pin to the side away from the undercut structure. At this time, due to the design of the stroke screw, the stroke screw will limit the movement of the slider in the oblique pin. When the slider moves to abut against the nut of the stroke screw, the slider will stop moving. At this time, the slider exits the undercut structure, and the slider and the undercut structure are separated. The stroke screw can limit the movement of the slider, which can ensure that the slider moves to the correct position to effectively separate the undercut structure of the product; and it can ensure that the slider is always connected to the oblique pin to prevent the slider from detaching from the oblique pin, thereby facilitating subsequent resetting work.
[0015] In a specific possible implementation scheme, it also includes a spring, the slider is provided with a slide groove, the spring is arranged in the slide groove and sleeved on the stroke screw, one end of the spring is in contact with the oblique pin and the other end is in contact with the inner wall of the slide groove.
[0016] By adopting the above technical solution, after the bundle block releases the constraint on the slider, the slider will move inside the oblique pin to the side away from the undercut structure. At this time, due to the design of the spring, the spring will provide additional driving force, and the spring will assist in pushing the slider to move to the side away from the undercut structure, thereby realizing the separation of the slider and the undercut structure; through the auxiliary pushing of the spring, the slider can quickly and reliably detach from the undercut structure. This design ensures the smoothness and reliability of the operation, and the role of the spring is not only to provide driving force, but also to provide a stable reverse force during the movement of the slider, thereby ensuring the accuracy and controllability of the slider movement.
[0017] In a specific possible implementation manner, there is a distance between the travel screw and the bottom wall of the control groove, and the distance is the moving distance of the slider.
[0018] By adopting the above technical solution and utilizing the above design, it can be ensured that the slider does not exceed the expected movement range during operation, thereby ensuring the safety and controllability of the mechanical system. It can also be used to accurately control the position of the slider to ensure that it can accurately stop or trigger other actions when necessary.
[0019] In a specific implementation manner, the moving distance of the slider is greater than the depth of the undercut structure by 0.5 mm to 5 mm.
[0020] By adopting the above technical solution and utilizing the above parameter design, it can be ensured that the slider can completely disengage from the undercut structure without being obstructed or re-contacting the undercut structure during movement. This arrangement ensures the integrity and reliability of the demolding operation, prevents incomplete demolding or damage to the product, and prevents the slider from moving out of the oblique pin, ensuring that the slider can subsequently be ejected from the mold together with the oblique pin, so that subsequent demolding work can proceed smoothly.
[0021] In a specific possible implementation mode, the bundle block is provided with a limiting inclined surface, the limiting inclined surface abuts against the sliding block, and the limiting inclined surface is arranged at an angle of 5°-25° with respect to the vertical direction.
[0022] By adopting the above technical solution and utilizing the above settings, the existence of the limiting slope can provide guiding and limiting effects when the slider moves, ensuring that the slider maintains the correct direction and position during movement and avoiding the possibility of the slider deviation or misalignment; and the design of the limiting slope of 5° to 25° can effectively prevent the bundle block and the slider from getting stuck during assembly or demolding, the slider can move smoothly without being blocked or stuck, and can reduce the friction between the slider and the bundle block, thereby extending the service life of the components and improving operating efficiency.
[0023] In a specific possible implementation manner, the inclination degree of the sliding block relative to the vertical direction is greater than the inclination degree of the inclined pin relative to the vertical direction.
[0024] By adopting the above technical solution, during the ejection process of the inclined pin, the larger inclination angle of the slider is combined with the small inclination angle of the inclined pin to ensure that they can move smoothly when needed, thereby ensuring that the inclined pin can effectively drive the slider to be ejected together during ejection, thereby preventing the slider from getting stuck or blocked during operation, thereby ensuring the normal operation and reliability of the entire demolding mechanism with an inclined pin embedded in the slider.
[0025] In a specific possible implementation mode, the sliding block is arranged at an angle of 5°-25° to the vertical direction, and the inclined pin is arranged at an angle of 2°-10° to the vertical direction.
[0026] By adopting the above technical solution, the different inclination angles of the slider and the inclined pin can work together effectively to ensure smooth movement and coordinated motion during operation. By setting the appropriate angle, jamming or obstruction during work can be avoided, thereby improving the reliability and stability of the system, improving work efficiency, and reducing energy loss or component damage that may be caused by friction or poor guidance.
[0027] In a specific possible implementation manner, the oblique pin, the bundle block, and the slider are provided with chamfered surfaces, and the chamfered surfaces are used to prevent interference between the oblique pin, the bundle block, and the slider in assembly and demolding.
[0028] By adopting the above technical solution and utilizing the chamfered surface design, interference that may occur during assembly or demolding can be reduced. The chamfered surface helps to improve the efficiency and accuracy of assembly and reduce the need for adjustments during the assembly process. The presence of the chamfered surface can also reduce friction between parts, extend the service life of parts, and reduce damage or wear that may be caused by interference.
[0029] An injection mold comprises the demoulding mechanism with an inclined pin and an embedded slider as described above.
[0030] By adopting the above-mentioned technical scheme, the injection mold of the present application utilizes the above-mentioned demoulding mechanism with an oblique pin embedded slider, so that the injection mold can realize the undercut shape of the product in different directions, and can allow the molded product to be ejected during the mold opening process. This function can improve production efficiency and solve the problem that the traditional demoulding mechanism with an oblique pin embedded slider cannot handle undercuts in multiple directions at the same time, and the simple demoulding mechanism with an oblique pin embedded slider can reduce the use of complex parts and reduce the manufacturing and maintenance costs of the injection mold; the injection mold of the present application can not only meet the diverse product needs, but also provide significant advantages in cost and efficiency. Its simple structure and stability make it an option worthy of consideration in production, especially for products that need to frequently produce different undercut shapes.
[0031] In summary, the present application includes at least one of the following beneficial technical effects:
[0032] 1. The present application can effectively handle multiple undercut structures in different directions on the product through the design of the oblique pin and the slider, thereby solving the problem that the traditional demoulding mechanism with an oblique pin embedded in the slider cannot handle undercuts in multiple directions at the same time. In this process, the mobile control component ensures the accurate movement of the slider, and ensures the stability and reliability of the demoulding process. Compared with other complex demoulding mechanisms with oblique pins embedded in multiple directions, the demoulding mechanism with an oblique pin embedded in the slider of the present application is relatively simple in design structure, easy to manufacture and maintain, and can meet the needs of efficient production;
[0033] 2. The present application uses the auxiliary push of the spring to enable the slider to quickly and reliably disengage from the undercut structure. This design ensures smooth and reliable operation, and the spring not only provides a driving force, but also provides a stable reverse force during the movement of the slider, thereby ensuring the accuracy and controllability of the slider movement;
[0034] 3. The present application ensures that the slider can completely disengage from the undercut structure by limiting the moving distance of the slider without being obstructed or re-contacting the undercut structure during movement. This setting ensures the integrity and reliability of the demolding operation, prevents incomplete demolding or damage to the product, and prevents the slider from moving out of the oblique pin, ensuring that the slider can be ejected from the mold together with the oblique pin, so that subsequent demolding work can proceed smoothly. BRIEF DESCRIPTION OF THE DRAWINGS
[0035] Figure 1 It is a structural schematic diagram of the demoulding mechanism of an embodiment of the present application.
[0036] Figure 2 It is a cross-sectional view used to show the demoulding mechanism.
[0037] Figure 3It is a cross-sectional view used to show the separation of the slider and the undercut structure after the mold core moves.
[0038] Figure 4 It is a cross-sectional view used to show the separation of the oblique pin and the undercut structure after the oblique pin is ejected.
[0039] Figure 5 This is an enlarged view used to show the lift mechanism after demoulding.
[0040] Explanation of the reference numerals in the accompanying drawings: 1. demoulding mechanism; 2. mold core; 3. fixing plate; 31. bolt; 4. product; 41. undercut structure; 5. oblique pin; 51. mounting cavity; 52. groove; 6. slider; 61. control groove; 62. slide groove; 7. bundle block; 71. limiting inclined surface; 8. movable control part; 81. travel screw; 9. spring; 10. chamfered surface. DETAILED DESCRIPTION
[0041] The following is combined with Figure 1-5 This application is described in further detail.
[0042] Please refer to Figure 1 and Figure 2 As shown, the embodiment of the present application discloses a demoulding mechanism with an inclined pin embedded in a slider, which is used for demoulding a mold and a product 4. The mold includes a lower mold, and the lower mold includes a mold core 2 and a fixing plate 3 arranged opposite to the mold core 2. The mold core 2 is provided with a cavity corresponding to the product 4. In this embodiment, the mold also includes an upper mold, and the cavity is arranged between the upper mold and the lower mold;
[0043] The demoulding mechanism 1 comprises: an oblique pin 5, which is inserted into the mold core 2, and the top and side surfaces of the oblique pin 5 are in contact with the product 4 in the cavity, and the oblique pin 5 is provided with a groove 52 corresponding to the undercut structure 41 of the product 4;
[0044] The slider 6 is embedded in the oblique pin 5. The slider 6 is partially inserted into the groove 52 and contacts the undercut structure 41. The slider 6 slides and contacts in the oblique pin 5. In this embodiment, the oblique pin 5 is provided with a mounting cavity 51 for mounting the slider 6. The slider 6 slides and contacts in the mounting cavity 51.
[0045] The bundle block 7 is passed through the mold core 2 and fixed to the fixed plate 3. In this embodiment, the bundle block 7 is connected and fixed to the fixed plate 3 by bolts 31, and the bundle block 7 is in conflict with the surface of the slider 6 away from the undercut structure 41;
[0046] A moving control member 8 is used to limit the moving stroke of the slider 6;
[0047] When the mold is opened, the mold core 2 is driven to move upward, and the mold core 2 drives the oblique pin 5, the slider 6 and the product 4 to move upward together. The constraint of the bundle block 7 makes the slider 6 keep in contact with the undercut structure 41 in the initial stage. When the mold is opened, as the mold core 2 moves, the bundle block 7 will gradually release the constraint imposed on the slider 6. After the constraint is released, the slider 6 will move inside the oblique pin 5 to the side away from the undercut structure 41, and gradually disengage from the undercut structure 41. After the slider 6 moves out of the undercut structure 41, the oblique pin 5 is driven to be ejected. The ejection action of the oblique pin 5 drives the slider 6 and the product 4 to move obliquely upward, and the oblique pin 5 gradually disengages from the undercut structure 41, so that the oblique pin 5 is completely separated from the undercut structure 41, completing the entire demoulding work;
[0048] The present application can effectively handle multiple undercut structures 41 in different directions on the product 4 through the design of the oblique pin 5 and the slider 6, thereby solving the problem that the traditional demoulding mechanism cannot handle undercuts in multiple directions at the same time. During this process, the movable control part 8 ensures the accurate movement of the slider 6, and ensures the stability and reliability of the demoulding process. Compared with other complex multi-directional demoulding mechanisms, the demoulding mechanism 1 with an oblique pin and an embedded slider in the present application is relatively simple in design structure, easy to manufacture and maintain, and can meet the needs of efficient production.
[0049] Please refer to Figure 2-Figure 5 As shown, the moving control member 8 includes a travel screw 81, and a control groove 61 is provided on one side of the slider 6 close to the bundle block 7. One end of the nut of the travel screw 81 is located in the control groove 61, and the other end passes through the slider 6 and is inserted into the oblique pin 5 and is threadedly connected and fixed with the oblique pin 5. The travel screw 81 is slidably connected with the slider 6, and the travel screw 81 slides in the control groove 61; the travel screw 81 can limit the moving stroke of the slider 6, and can ensure that the slider 6 moves to the correct position, so as to effectively separate the undercut structure 41 of the product 4; and can make the slider 6 always connected with the oblique pin 5, prevent the slider 6 from being separated from the oblique pin 5, and facilitate the subsequent resetting work;
[0050] A distance S is left between the travel screw 81 and the bottom wall of the control slot 61, and the distance S is the moving distance of the slider 6; thereby ensuring that the slider 6 does not exceed the expected moving range during operation, thereby ensuring the safety and controllability of the mechanical system, and can also be used to accurately control the position of the slider 6 to ensure that it can accurately stop or trigger other actions when needed;
[0051] The moving distance of the slider 6 is greater than the depth of the undercut structure 41 by 0.5 mm to 5 mm, thereby ensuring that the slider 6 can completely detach from the undercut structure 41 without being obstructed or re-contacting the undercut structure 41 during the movement. This arrangement ensures the integrity and reliability of the demoulding operation, prevents incomplete demoulding or damage to the product 4, and prevents the slider 6 from moving out of the oblique pin 5, ensuring that the slider 6 can be ejected from the mold together with the oblique pin 5 later, so that the subsequent demoulding work can proceed smoothly;
[0052] The demoulding mechanism 1 also includes a spring 9. A slide groove 62 is provided on one side of the slider 6 close to the undercut structure 41 of the product 4. The notch of the slide groove 62 contacts the groove wall of the mounting cavity 51 in the oblique pin 5. The spring 9 is arranged in the slide groove 62 and sleeved on the stroke screw 81. One end of the spring 9 contacts the bottom wall of the mounting cavity 51 in the oblique pin 5 and the other end contacts the bottom wall of the slide groove 62. With the auxiliary push of the spring 9, the slider 6 can quickly and reliably disengage from the undercut structure 41. This design ensures the smoothness and reliability of the operation. The spring 9 not only provides a driving force, but also provides a stable reverse force during the movement of the slider 6, thereby ensuring the accuracy and controllability of the movement of the slider 6.
[0053] When the mold is opened, the mold core 2 is driven to move, and the mold core 2 drives the inclined pin 5, the slider 6 and the product 4 to move together. The constraint of the bundle block 7 makes the slider 6 keep in contact with the undercut structure 41 in the initial stage. When the mold is opened, as the mold core 2 moves, the bundle block 7 will gradually release the constraint on the slider 6; after the bundle block 7 releases the constraint on the slider 6, the slider 6 will move inside the inclined pin 5 to the side away from the undercut structure 41. At this time, due to the design of the spring 9, the spring 9 will provide additional driving force, and the spring 9 will assist in pushing the slider 6 to move to the side away from the undercut structure 41. During the movement of the slider 6, due to the design of the stroke screw 81, the stroke screw 81 will limit the movement stroke of the slider 6 in the inclined pin 5. When the slider 6 moves to abut against the nut of the stroke screw 81, the slider 6 will stop moving. At this time, the slider 6 withdraws from the undercut structure 41, and the slider 6 and the undercut structure 41 are separated.
[0054] During resetting, the inclined pin 5 is driven to move downward, and the inclined pin 5 drives the slider 6 to move downward together and return to the mold core 2, and then the mold core 2 is driven to move downward, and the mold core 2 drives the inclined pin 5 and the slider 6 to move downward together. When the slider 6 encounters the bundle block 7, the limiting inclined surface 71 of the bundle block 7 will squeeze the slider 6 and the spring 9, so that the slider 6 and the spring 9 return to the initial position in the inclined pin 5, completing the resetting work. During this process, the spring 9 will be compressed and accumulate force to prepare for the next demolding work.
[0055] The bundle block 7 is provided with a limiting slope 71, which contacts the slider 6, and the angle formed between the limiting slope 71 and the vertical direction is set to a, and a is 5°-25; the existence of the limiting slope 71 can provide guidance and limiting effects when the slider 6 moves, ensuring that the slider 6 maintains the correct direction and position during the movement, and avoiding the possibility of the slider 6 deviating or misaligned; and the design of the limiting slope 715° to 25° can effectively prevent the bundle block 7 and the slider 6 from getting stuck during the assembly or demolding process, and the slider 6 can move smoothly without being blocked or stuck, and can reduce the friction between the slider 6 and the bundle block 7, thereby extending the service life of the components and improving the operating efficiency.
[0056] The inclination degree of the slider 6 relative to the vertical direction is greater than the inclination degree of the oblique pin 5 relative to the vertical direction; the angle formed between the slider 6 and the vertical direction is set to b, b is 5°-25, and the angle formed between the oblique pin 5 and the vertical direction is set to c, c is 2°-10°;
[0057] During the ejection process of the slanted pin 5, the larger inclination angle of the slider 6 is combined with the smaller inclination angle of the slanted pin 5, and the different inclination angles of the slider 6 and the slanted pin 5 can work together effectively to ensure smooth movement and coordinated motion during operation, and to ensure that they can move smoothly when needed, thereby ensuring that the slanted pin 5 can effectively drive the slider 6 to be ejected together during ejection. By setting the appropriate angle, jamming or blockage during work can be avoided, thereby ensuring the normal operation and reliability of the entire demoulding mechanism 1, improving work efficiency, and reducing energy loss or component damage that may be caused by friction or poor guidance.
[0058] The bevel pin 5, the bundle block 7 and the slider 6 are provided with chamfered surfaces 10, which are used to prevent interference with the assembly and demolding movement of the bevel pin 5, the bundle block 7 and the slider 6. In the present embodiment, the bevel pin 5 and the slider 6 are provided with chamfered surfaces 10 on the side of the limiting bevel 71 of the bundle block 7 and on the side of the bundle block 7 close to the slider 6. The design of the chamfered surfaces 10 can reduce possible interference during assembly or demolding. The chamfered surfaces 10 help to improve the efficiency and accuracy of assembly and reduce the need for adjustment during assembly. The presence of the chamfered surfaces 10 can also reduce friction between parts, extend the service life of parts, and reduce damage or wear that may be caused by interference.
[0059] The present application also provides an injection mold, including a demolding mechanism 1 with an inclined pin and an embedded slider as described above; the injection mold of the present application utilizes the above-mentioned demolding mechanism 1, so that the injection mold can realize the undercut shape of the product 4 in different directions, and can allow the molded product 4 to be ejected during the mold opening process. This function can improve production efficiency and solve the problem that traditional demolding mechanisms cannot handle undercuts in multiple directions at the same time, and a simple demolding mechanism can reduce the use of complex parts and reduce the manufacturing and maintenance costs of injection molds; the injection mold of the present application can not only meet the diverse product needs, but also provide significant advantages in cost and efficiency. Its simple structure and stability make it an option worth considering in production, especially for products that need to frequently produce different undercut shapes.
[0060] The implementation principle of the embodiment of the present application is as follows: the demoulding mechanism 1 with an oblique pin embedded in a slider of the present application can effectively handle multiple undercut structures 41 in different directions on the product 4 through the design of the oblique pin 5 and the slider 6, and ensure the stability and reliability of the demoulding process. Compared with other complex multi-directional demoulding mechanisms, this design structure is relatively simple and easy to manufacture and maintain;
[0061] When the mold is opened, the mold core 2 is driven to move upward, and the mold core 2 drives the inclined pin 5, the slider 6 and the product 4 to move upward together. The constraint of the bundle block 7 makes the slider 6 keep in contact with the undercut structure 41 in the initial stage. When the mold is opened, as the mold core 2 moves, the bundle block 7 will gradually release the constraint on the slider 6; after the bundle block 7 releases the constraint on the slider 6, the slider 6 will move inside the inclined pin 5 to the side away from the undercut structure 41. At this time, due to the design of the spring 9, the spring 9 will provide additional driving force, and the spring 9 will assist in pushing the slider 6 to move to the side away from the undercut structure 41. During the movement of the slider 6, due to the design of the stroke screw 81, the stroke screw 81 will limit the movement stroke of the slider 6 in the inclined pin 5. When the backward stroke of the slider 6 reaches the distance S, that is, when the slider 6 moves to abut against the nut of the stroke screw 81, the slider 6 will stop moving. At this time, the slider 6 withdraws from the undercut structure 41, realizing the separation of the slider 6 and the undercut structure 41, and the slider 6 at this time is embedded in the inclined pin 5;
[0062] After the slider 6 is moved out of the undercut structure 41, the inclined pin 5 is driven to be ejected. The ejection action of the inclined pin 5 drives the slider 6 and the product 4 to move obliquely upward, and the inclined pin 5 gradually separates from the undercut structure 41, so that the inclined pin 5 is completely separated from the undercut structure 41, and the entire demoulding work is completed;
[0063] During reset, the inclined pin 5 is driven to move downward, and the inclined pin 5 drives the slider 6 to move downward together and return to the mold core 2. Then the mold core 2 is driven to move downward, and the mold core 2 drives the inclined pin 5 and the slider 6 to move downward together. When the slider 6 encounters the bundle block 7, the limiting inclined surface 71 of the bundle block 7 will squeeze the slider 6 and the spring 9, so that the slider 6 and the spring 9 return to the initial position in the inclined pin 5, and the reset work is completed. In this process, the spring 9 will be compressed and stored to prepare for the next demoulding work.
[0064] The injection mold of the present application utilizes the above-mentioned demolding mechanism 1 with an inclined pin and an embedded slider, which can not only meet the diverse product needs, but also provide significant advantages in cost and efficiency. Its simple structure and stability make it an option worthy of consideration in production, especially for products that need to frequently produce different undercut shapes.
[0065] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.
Claims
1. A demoulding mechanism with an inclined pin and an embedded slider, used for demoulding a mold and a product (4), the mold comprising a lower mold, the lower mold comprising a mold core (2) and a fixing plate (3) arranged opposite to the mold core (2), the mold core (2) being provided with a cavity corresponding to the product (4), characterized in that: The demoulding mechanism (1) comprises: an oblique pin (5), the oblique pin (5) being inserted into the mold core (2), the top surface and the side surface of the oblique pin (5) being in contact with the product (4), and the oblique pin (5) being provided with a groove (52) corresponding to the undercut structure (41) of the product (4); A slider (6), the slider (6) being embedded in the oblique pin (5), the slider (6) being partially inserted into the groove (52) and in contact with the undercut structure (41), and the slider (6) slidingly moving inside the oblique pin (5); A bundle block (7), the bundle block (7) being passed through the mold core (2) and fixed to the fixed plate (3), the bundle block (7) being in contact with the slider (6); A movable control member (8), wherein the movable control member (8) limits the moving stroke of the slider (6); When the mold is opened, the mold core (2) is driven to move, thereby driving the inclined pin (5), the slider (6) and the product (4) to move, so that the bundle block (7) releases the restriction on the slider (6), and the slider (6) moves inside the inclined pin (5) to a side away from the undercut structure (41) and separates from the undercut structure (41); the inclined pin (5) is driven to be ejected, and the inclined pin (5) drives the slider (6) and the product (4) to move obliquely upward, so that the inclined pin (5) is separated from the undercut structure (41), and the demoulding of the product (4) is completed.
2. The demoulding mechanism with an inclined pin embedded in a slider according to claim 1, characterized in that: The movable control member (8) comprises a travel screw (81), the slider (6) is provided with a control groove (61), one end of a nut of the travel screw (81) is located in the control groove (61), and the other end passes through the slider (6) and is inserted into the oblique pin (5) to be fixed to the oblique pin (5), and the travel screw (81) is slidably connected to the slider (6).
3. The demoulding mechanism with an inclined pin embedded in a slider according to claim 2, characterized in that: It also includes a spring (9), the slider (6) is provided with a slide groove (62), the spring (9) is arranged in the slide groove (62) and sleeved on the travel screw (81), one end of the spring (9) abuts against the oblique pin (5) and the other end abuts against the inner wall of the slide groove (62).
4. The demoulding mechanism with an inclined pin embedded in a slider according to claim 2, characterized in that: There is a distance between the travel screw (81) and the bottom wall of the control groove (61), and the distance is the moving distance of the slider (6).
5. The demoulding mechanism with an inclined pin embedded in a slider according to claim 4, characterized in that: The moving distance of the slider (6) is greater than the depth of the undercut structure (41) by 0.5 mm to 5 mm.
6. The demoulding mechanism with an inclined pin embedded in a slider according to claim 1, characterized in that: The bundle block (7) is provided with a limiting inclined surface (71), the limiting inclined surface (71) abuts against the sliding block (6), and the limiting inclined surface (71) is arranged at an angle of 5°-25° with respect to the vertical direction.
7. The demoulding mechanism with an inclined pin embedded in a slider according to claim 1, characterized in that: The degree of inclination of the sliding block (6) relative to the vertical direction is greater than the degree of inclination of the oblique pin (5) relative to the vertical direction.
8. The demoulding mechanism with an inclined pin embedded in a slider according to claim 7, characterized in that: The sliding block (6) is arranged at an angle of 5°-25° to the vertical direction, and the inclined pin (5) is arranged at an angle of 2°-10° to the vertical direction.
9. The demoulding mechanism with an inclined pin embedded in a slider according to claim 1, characterized in that: The oblique pin (5), the bundle block (7), and the slider (6) are provided with chamfered surfaces (10), and the chamfered surfaces (10) are used to prevent interference in assembly and demoulding movement between the oblique pin (5), the bundle block (7), and the slider (6).
10. An injection mold, characterized in that: It comprises a demoulding mechanism (1) with an inclined pin and an embedded slider as described in any one of claims 1 to 9.