Demolding mechanism and injection mold
By designing a mold release mechanism, the coordinated movement of the drive block and the drive assembly and combined with the tenon structure, the problem of demolding is solved due to the inability to move vertically by the steel parts, and an efficient and reliable mold release process is achieved.
Patent Information
- Application Number
- CN202420832199.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-04-22
- Publication Date
- 2025-04-04
- Estimated Expiration
- 2034-04-22
AI Technical Summary
During the injection molding process of plastic products, the mold structure design restricts the steel parts from being able to move vertically, resulting in difficulty in product demolding and affecting production efficiency and product quality.
A mold release mechanism is designed to drive the horizontal movement of the driving component through the vertical movement of the driving block, and connect the driving component with the steel component using a tenon structure to achieve vertical movement of the steel component, thereby completing the mold release work.
The smooth separation of steel parts and products is achieved, production efficiency and product quality are improved, and the cost and maintenance needs of additional parts are reduced.
Smart Images
Figure CN222712744U_ABST
Abstract
Description
Technical Field
[0001] The present application relates to the field of injection mold technology, and in particular to a demoulding mechanism and an injection mold. Background Art
[0002] During the injection molding process of plastic products, the mold core contains steel parts corresponding to the product's appearance and structure. These steel parts need to be separated from the product after injection molding to complete the demoulding work. However, due to the structural design limitations of the mold itself, these steel parts cannot move vertically directly, resulting in difficulty in demoulding the product, which has become a common problem.
[0003] This situation often makes it difficult to separate the mold from the product, bringing a series of challenges to the production process. First, demolding difficulties will seriously affect production efficiency. Because the product and steel parts cannot be separated smoothly, the production line may need to stop or slow down frequently to deal with the products stuck in the mold, resulting in discontinuity in production progress and affecting overall production efficiency and output; secondly, demolding difficulties will also increase the incidence of product quality problems. During the forced demolding process, additional stress and damage may be caused to the product and steel parts, resulting in product deformation, damage or surface defects, thereby increasing the defective rate and subsequent processing costs.
[0004] Therefore, in response to this problem, it is urgent to develop an injection mold design to solve the challenge of difficult separation of steel parts and products; this mold design should be able to optimize the structure and layout of the steel parts so that they can achieve smooth vertical movement during the demolding process. Utility Model Content
[0005] In order to enable the insert to move vertically smoothly so that the product can be easily demoulded, the present application provides a demoulding mechanism and an injection mold.
[0006] The demoulding mechanism and injection mold provided in this application adopt the following technical solutions:
[0007] A demoulding mechanism comprises a steel part, wherein the steel part has a structure corresponding to the appearance of a product; the demoulding mechanism also comprises a driving block and a driving assembly, wherein the driving block and the driving assembly are plugged into each other, and the driving assembly and the steel part are slidably connected via a mortise and tenon structure; the vertical movement of the driving block drives the horizontal movement of the driving assembly, thereby causing the driving assembly to drive the vertical movement of the steel part.
[0008] By adopting the above technical solution, when the mold is opened, the driving block moves upward in the vertical direction, driving the driving assembly to move in the horizontal direction. At this time, since the driving assembly is connected to the steel part through the mortise and tenon structure, the mortise and tenon structure ensures a stable connection and relative movement between the two. The horizontal movement of the driving assembly is converted into the vertical movement of the steel part, and the steel part moves upward in the vertical direction to exit the product, thereby realizing the separation of the steel part and the product and completing the demolding work; the present application realizes the vertical movement of product demolding by designing the structure of the mold itself without the need for additional driving parts, and utilizes the structure of the mold itself to realize the demolding process, avoiding the addition of complex driving parts and systems, thereby saving costs and simplifying the design, and by improving the mold structure, the demolding process can be made more efficient and reliable, while reducing the cost and maintenance requirements of additional parts.
[0009] In a specific possible implementation scheme, the driving assembly includes a slider, which is slidably connected to the steel part through the mortise and tenon structure, and the driving block passes through the slider and slides and abuts on the slider. A spring is provided in the slider, and the spring is used to assist in pushing the slider to move horizontally when the driving block moves vertically.
[0010] By adopting the above technical solution, when the mold is opened, the driving block moves vertically upward, and the driving block gradually releases the restriction on the slider, allowing the slider to move horizontally. During the horizontal movement of the slider, the spring plays an auxiliary pushing role. The vertical movement of the driving block and the horizontal movement of the slider work together to enable the steel part to achieve vertical movement smoothly. The combination of the driving block and the spring can provide control over the horizontal movement of the slider, ensuring the accuracy of the demolding process, and the auxiliary pushing of the spring can reduce the dependence on the external power source, thereby saving production costs.
[0011] In a specific possible implementation, the driving block is provided with a first inclined surface, the slider is provided with a second inclined surface, the first inclined surface and the second inclined surface slide and contact each other; the first inclined surface and the second inclined surface are arranged at an angle of 0°-30° with the vertical direction.
[0012] By adopting the above technical solution, the sliding resistance of the first inclined surface and the second inclined surface is utilized to increase the connection between the driving block and the slider, thereby providing a more secure mechanical transmission. By designing the angles of the first inclined surface and the second inclined surface, it is ensured that the vertical movement of the driving block can be effectively transmitted to the slider, thereby affecting the horizontal movement of the slider and improving the accuracy of the demolding process.
[0013] In a specific embodiment, two pressing blocks are further included, the sliding block is located between the two pressing blocks, and the sliding block is in sliding contact with the two pressing blocks.
[0014] By adopting the above technical solution, the setting of the pressure block can provide additional support and guidance to help ensure that the slider remains stable during movement. By setting the pressure block, the possibility of the slider shaking and deviating from the track can be reduced, thereby improving the stability of the entire movement process.
[0015] In a specific possible implementation scheme, the mortise and tenon structure includes a guide block provided on the sliding block and a guide groove provided on the steel member, and the guide block is inserted into the guide groove and slides and abuts against the guide groove.
[0016] By adopting the above technical solution, the slider drives the steel part to move vertically when it moves horizontally. During this process, the guide block is inserted into the guide groove and slides in it. The guide block provides sliding guidance and support when the steel part moves vertically. The guide groove provides a fixed track so that the guide block can move in it, thereby realizing the connection and movement between the slider and the steel part, ensuring the stable movement of the slider in the vertical direction.
[0017] In a specific possible implementation scheme, the slider is provided with a third inclined plane, the steel part is provided with a fourth inclined plane, the third inclined plane and the fourth inclined plane slide against each other; the third inclined plane and the fourth inclined plane are arranged at an angle of 0°-20° with the horizontal direction.
[0018] By adopting the above technical solution, when the slider moves horizontally, the third inclined surface on the slider and the fourth inclined surface on the steel part will have a sliding conflict. This sliding conflict mechanism can transmit the force in the horizontal direction, thereby affecting the vertical movement of the steel part; and by designing the angles of the third inclined surface and the fourth inclined surface, it is ensured that the horizontal movement of the slider can be effectively transmitted to the steel part, thereby affecting the vertical movement of the steel part and improving the accuracy of the demolding process.
[0019] In a specific possible implementation manner, the steel piece is formed by connecting two inserts, and an exhaust groove is formed between the two inserts.
[0020] By adopting the above technical solution and utilizing the setting of the exhaust groove, the air in the cavity during the molding process can be effectively discharged to prevent the formation of bubbles or cavities, thereby reducing the possibility of defects such as glue deficiency and glue burning in the product, and helping to ensure that the molding material can fully fill the cavity and fit closely to the mold surface, ultimately obtaining a high-quality molded product, thereby improving the molding quality of the product, reducing the scrap rate in the product manufacturing process, and improving production efficiency and economic benefits.
[0021] In a specific possible implementation manner, the steel piece is provided with screws, and the two inserts are connected and fixed by the screws.
[0022] By adopting the above technical solution and using screws to connect and fix, it can be ensured that the assembly structure of the two inserts of the steel part is stable and reliable and not easy to loosen or fall off; and the screw connection is also adjustable, and the gap or tightness between the two inserts can be adjusted by adjusting the tightening degree of the screws to meet different design requirements and working environment needs.
[0023] In a specific possible implementation manner, the steel piece is further provided with a pin, and the two inserts are positioned and installed by the pin.
[0024] By adopting the above technical solution and utilizing the design of the pin, a positioning function is achieved to ensure the correct assembly position of the two inserts and the matching relationship between them, thereby improving the assembly efficiency and quality of the steel parts, reducing the error rate during the assembly process, and improving the overall performance and reliability of the product.
[0025] An injection mold comprises the demoulding mechanism as described above.
[0026] By adopting the above-mentioned technical solution, the present application uses the above-mentioned demolding mechanism, which can directly realize the vertical demolding movement of the steel part through the structural design of the injection mold itself, without the need for additional driving components. This design makes full use of the injection mold structure, avoids adding a complex driving system, saves costs and simplifies the design; at the same time, through the improvement of the injection mold structure, the demolding process can be made more efficient and reliable, while reducing the cost and maintenance requirements of additional parts.
[0027] In summary, the present application includes at least one of the following beneficial technical effects:
[0028] 1. The present application utilizes the synergistic effect of the vertical movement of the drive block and the horizontal movement of the drive assembly to enable the steel part to smoothly realize vertical movement; the vertical movement of the product demoulding is realized by designing the structure of the mold itself, without the need for additional drive parts, and the demoulding process is realized by utilizing the structure of the mold itself, avoiding the addition of complex drive parts and systems, thereby saving costs and simplifying the design, and by improving the mold structure, the demoulding process can be made more efficient and reliable, while reducing the cost and maintenance requirements of additional parts;
[0029] 2. The present application utilizes the setting of the exhaust groove to effectively discharge the air in the cavity during the molding process, prevent the formation of bubbles or cavities, thereby reducing the possibility of defects such as glue shortage and glue burning in the product, and helps to ensure that the molding material can fully fill the cavity and fit closely to the mold surface, and finally obtain a high-quality molded product, thereby improving the molding quality of the product, reducing the scrap rate in the product manufacturing process, and improving production efficiency and economic benefits;
[0030] 3. The present application utilizes the design of the mortise and tenon structure. When the slider moves horizontally, it drives the steel part to move vertically. During this process, the guide block is inserted into the guide groove and slides in it. The guide block provides sliding guidance and support when the steel part moves vertically. The guide groove provides a fixed track so that the guide block can move in it, thereby realizing the connection and movement between the slider and the steel part, ensuring the stable movement of the slider in the vertical direction. BRIEF DESCRIPTION OF THE DRAWINGS
[0031] Figure 1 It is a structural schematic diagram of the demoulding mechanism in the embodiment of the present application.
[0032] Figure 2 It is a cross-sectional view used to show the drive block and the slider.
[0033] Figure 3 It is a schematic diagram used to show the structure of steel parts.
[0034] Explanation of the reference numerals: 1. Steel part; 11. Insert; 12. Fourth inclined plane; 13. Exhaust groove; 14. Screw; 15. Pin; 2. Drive block; 21. First inclined plane; 3. Drive assembly; 31. Slider; 311. Second inclined plane; 312. Third inclined plane; 32. Spring; 4. Mortise and tenon structure; 41. Guide block; 42. Guide groove; 5. Press block; 6. Structural shape. DETAILED DESCRIPTION
[0035] The following is combined with Figure 1-3 This application is described in further detail.
[0036] Please refer to Figure 1 and Figure 2 As shown, the embodiment of the present application discloses a demoulding mechanism. In this embodiment, the demoulding mechanism is applied to the mold. The demoulding mechanism includes but is not limited to being arranged in the mold core of the mold, and together with the mold core, forms a structure corresponding to the product shape;
[0037] The demoulding mechanism includes a steel part 1. In this embodiment, the steel part 1 is vertically arranged and has a structural shape 6 corresponding to the appearance of the product, so as to ensure the accuracy and stability during the demoulding process.
[0038] The demoulding mechanism further includes a driving block 2 and a driving assembly 3. In this embodiment, the driving block 2 is vertically arranged, the driving block 2 and the driving assembly 3 are plugged together, and the driving assembly 3 is slidably connected to the steel part 1 through a mortise and tenon structure 4, thereby providing good support and guidance for the movement of the demoulding mechanism;
[0039] The vertical movement of the driving block 2 drives the driving assembly 3 to move horizontally, so that the driving assembly 3 drives the steel piece 1 to move vertically, achieving smooth demoulding;
[0040] During the mold opening process, the driving block 2 moves upward in the vertical direction, thereby driving the driving assembly 3 to move in the horizontal direction. At this time, the mortise and tenon structure 4 used between the driving assembly 3 and the steel part 1 ensures a stable connection and relative movement between them. Through this design, the horizontal movement of the driving assembly 3 is converted into the vertical movement of the steel part 1, so that the steel part 1 moves upward in the vertical direction, thereby smoothly separating from the product. This process realizes the separation of the steel part 1 from the product and completes the demoulding task. The present application realizes the vertical movement of product demoulding by designing the structure of the mold itself without the need for additional driving parts. The demoulding process is realized by using the structure of the mold itself, avoiding the addition of complex driving parts and systems, thereby saving costs and simplifying the design. Moreover, by improving the mold structure, the demoulding process can be made more efficient and reliable, while reducing the cost and maintenance requirements of additional components.
[0041] The driving assembly 3 includes a slider 31. In this embodiment, the slider 31 is horizontally arranged, and the arrangement direction of the slider 31 is perpendicular to the arrangement direction of the steel member 1. The slider 31 is slidably connected to the steel member 1 through the mortise and tenon structure 4. The driving block 2 passes through the slider 31 and slides and contacts on the slider 31. A spring 32 is arranged in the slider 31. The spring 32 is used to assist in pushing the slider 31 to move horizontally when the driving block 2 moves vertically. In this embodiment, in the initial state, the spring 32 is entirely located in the slider 31, and the outer side of the spring 32 contacts the mold core, and the spring 32 is compressed and stored. When the mold is opened, the slider 31 moves horizontally. At this time, the spring 32 provides thrust to the slider 31 to assist in the horizontal movement of the slider 31.
[0042] The slider 31 is located between the two pressing blocks 5, and the slider 31 slides against the two pressing blocks 5; the setting of the pressing blocks 5 can provide additional support and guidance to help ensure that the slider 31 remains stable during the movement. By setting the pressing blocks 5, the possibility of the slider 31 shaking and deviating from the track can be reduced, thereby improving the stability of the entire movement process;
[0043] The driving block 2 is provided with a first inclined surface 21, and the slider 31 is provided with a second inclined surface 311, and the first inclined surface 21 and the second inclined surface 311 are slidably opposed to each other; the first inclined surface 21 and the second inclined surface 311 are arranged at an angle of 0°-30° with the vertical direction, and in this embodiment, the first inclined surface 21 and the second inclined surface 311 are arranged at an angle of 10°-30° with the vertical direction; the connection between the driving block 2 and the slider 31 is increased by the slidably opposed contact between the first inclined surface 21 and the second inclined surface 311, providing a more secure mechanical transmission, and by designing the angles of the first inclined surface 21 and the second inclined surface 311, it is ensured that the vertical movement of the driving block 2 can be effectively transmitted to the slider 31, thereby affecting the horizontal movement of the slider 31, and improving the accuracy of the demoulding process;
[0044] When the mold is opened, the driving block 2 moves vertically upward, and the driving block 2 gradually releases the restriction on the slider 31, allowing the slider 31 to move horizontally. During the horizontal movement of the slider 31, the slider 31 will slide along the two pressure blocks 5. At this time, the spring 32 in the slider 31 will provide thrust to the slider 31, which plays a role in assisting the horizontal movement of the slider 31. The vertical movement of the driving block 2 and the horizontal movement of the slider 31 work together to enable the steel part 1 to smoothly achieve vertical movement. During this process, the first inclined surface 21 on the driving block 2 and the second inclined surface 311 on the slider 31 will have a sliding conflict. This sliding conflict mechanism can transmit force in the vertical direction, thereby affecting the horizontal movement of the slider 31; the combination of the driving block 2 and the spring 32 can provide control over the horizontal movement of the slider 31, ensure the accuracy of the demoulding process, and the auxiliary push of the spring 32 can reduce the dependence on the external power source, thereby saving production costs.
[0045] Please refer to Figure 2 and Figure 3 As shown, the mortise and tenon structure 4 includes a guide block 41 provided on the slider 31 and a guide groove 42 provided on the steel member 1. In this embodiment, the guide block 41 may be but not limited to a T-shaped block, and the guide groove 42 may be but not limited to a T-shaped groove. The guide block 41 is inserted into the guide groove 42 and slides and contacts in the guide groove 42.
[0046] The slider 31 is provided with a third inclined surface 312, and the steel piece 1 is provided with a fourth inclined surface 12, and the third inclined surface 312 and the fourth inclined surface 12 are slidably colliding with each other; the third inclined surface 312 and the fourth inclined surface 12 are set at an angle of 0°-20° to the horizontal direction. In this embodiment, the third inclined surface 312 and the fourth inclined surface 12 are set at an angle of 3°-20° to the horizontal direction; when the slider 31 moves horizontally, the third inclined surface 312 on the slider 31 and the fourth inclined surface 12 on the steel piece 1 will slidably collide with each other, and this sliding colliding mechanism can transmit the force in the horizontal direction, thereby affecting the vertical movement of the steel piece 1; and by designing the angles of the third inclined surface 312 and the fourth inclined surface 12, it is ensured that the horizontal movement of the slider 31 can be effectively transmitted to the steel piece 1, thereby affecting the vertical movement of the steel piece 1 and improving the accuracy of the demoulding process;
[0047] When the mold is opened, the slider 31 moves horizontally and drives the steel part 1 to move vertically. During this process, the guide block 41 is inserted into the guide groove 42 and slides and contacts therein. The guide block 41 provides sliding guidance and support when the steel part 1 moves vertically. The guide groove 42 provides a fixed track so that the guide block 41 can move therein. During this process, the third inclined surface 312 on the slider 31 and the fourth inclined surface 12 on the steel part 1 will slide and contact each other. This sliding and contact mechanism can transmit force in the horizontal direction, thereby affecting the vertical movement of the steel part 1, thereby realizing the connection and movement between the slider 31 and the steel part 1, and ensuring the stable movement of the slider 31 in the vertical direction.
[0048] The steel part 1 is formed by connecting two inserts 11, and an exhaust groove 13 is formed between the two inserts 11. Through the setting of the exhaust groove 13, the air in the cavity during the molding process can be effectively discharged to prevent the formation of bubbles or cavities, thereby reducing the possibility of defects such as glue deficiency and glue burning in the product, helping to ensure that the molding material can fully fill the cavity and fit closely to the mold surface, and finally obtain a high-quality molded product, thereby improving the molding quality of the product, reducing the scrap rate in the product manufacturing process, and improving production efficiency and economic benefits.
[0049] The steel part 1 is provided with a screw 14, and the two inserts 11 are connected and fixed by the screw 14. The screw 14 is horizontally arranged and threadedly connected to the two inserts 11. In the present embodiment, there are two screws 14, and the two screws 14 jointly connect and fix the two inserts 11 to assemble into the steel part 1; the connection and fixation by the screw 14 can ensure that the assembly structure of the two inserts 11 of the steel part 1 is stable and reliable, and is not easy to loosen or fall off; and the screw 14 connection is also adjustable, and the gap or tightness between the two inserts 11 can be adjusted by adjusting the tightening degree of the screw 14 to meet the needs of different design requirements and working environments.
[0050] The steel part 1 is also provided with a pin 15, and the two inserts 11 are positioned and installed by the pin 15. In the present embodiment, the pin 15 is located between the two screws 14. The design of the pin 15 plays a positioning role, ensuring the correct assembly position of the two inserts 11 and the matching relationship between them, thereby improving the assembly efficiency and quality of the steel part 1, reducing the error rate in the assembly process, and improving the overall performance and reliability of the product.
[0051] The present application also provides an injection mold (the specific structure of the injection mold is not shown in the figure) including the demoulding mechanism as described above (the specific structure of the demoulding mechanism is shown in FIG. Figure 1-3As shown); the injection mold of the present application uses the above-mentioned demoulding mechanism, which can directly realize the vertical demoulding movement of the steel part 1 by designing the structure of the injection mold itself, without the need for additional driving components. This design makes full use of the injection mold structure, avoids adding a complex driving system, saves costs and simplifies the design; at the same time, by improving the injection mold structure, the demoulding process can be made more efficient and reliable, while reducing the cost and maintenance requirements of additional components.
[0052] The implementation principle of the embodiment of the present application is as follows: the present application mainly realizes the vertical movement of the product demoulding by designing the structure of the mold itself, without the need for additional driving parts. This innovation uses the structure of the mold itself to promote the demoulding process, avoiding the addition of complex driving devices and systems, which not only saves costs and simplifies the design, but also makes the demoulding process more efficient and reliable by improving the mold structure.
[0053] When the mold is opened, the driving block 2 moves vertically upward, and the driving block 2 gradually releases the restriction on the slider 31, allowing the slider 31 to move horizontally. During the horizontal movement of the slider 31, the slider 31 will slide along the two pressure blocks 5. At this time, the spring 32 in the slider 31 will provide thrust to the slider 31, playing a role in assisting the horizontal movement of the slider 31. The vertical movement of the driving block 2 and the horizontal movement of the slider 31 work together to enable the steel part 1 to smoothly achieve vertical movement. During this process, the first inclined surface 21 on the driving block 2 and the second inclined surface 311 on the slider 31 will slide against each other. This sliding conflict mechanism can transmit the force in the vertical direction, thereby affecting the horizontal movement of the slider 31.
[0054] When the slider 31 moves horizontally, it drives the steel part 1 to move vertically. During this process, the guide block 41 is inserted into the guide groove 42 and slides and contacts therein. The guide block 41 provides sliding guidance and support when the steel part 1 moves vertically. The guide groove 42 provides a fixed track so that the guide block 41 can move therein. During this process, the third inclined surface 312 on the slider 31 and the fourth inclined surface 12 on the steel part 1 will slide and contact each other. This sliding and contacting mechanism can transmit the force in the horizontal direction, thereby affecting the vertical movement of the steel part 1 and ensuring the stable movement of the slider 31 in the vertical direction, so that the horizontal movement of the driving component 3 is converted into the vertical movement of the steel part 1, so that the steel part 1 moves upward in the vertical direction, thereby smoothly separating from the product. This process realizes the separation of the steel part 1 from the product and completes the demoulding task.
[0055] 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, comprising a steel part (1), wherein the steel part (1) has a structure corresponding to the appearance of a product; characterized in that: The demoulding mechanism further comprises a driving block (2) and a driving assembly (3), wherein the driving block (2) and the driving assembly (3) are plug-fitted to each other, and the driving assembly (3) and the steel part (1) are slidably connected via a mortise and tenon structure (4); the vertical movement of the driving block (2) drives the driving assembly (3) to move horizontally, thereby causing the driving assembly (3) to drive the steel part (1) to move vertically.
2. The demoulding mechanism according to claim 1, characterized in that: The driving assembly (3) comprises a slider (31), the slider (31) being slidably connected to the steel member (1) via the mortise and tenon structure (4), the driving block (2) passing through the slider (31) and slidingly abutting against the slider (31), and a spring (32) being arranged inside the slider (31), the spring (32) being used to assist in pushing the slider (31) to move horizontally when the driving block (2) moves vertically.
3. The demoulding mechanism according to claim 2, characterized in that: The driving block (2) is provided with a first inclined surface (21), the sliding block (31) is provided with a second inclined surface (311), the first inclined surface (21) and the second inclined surface (311) are in sliding contact with each other; the first inclined surface (21) and the second inclined surface (311) are arranged at an angle of 0°-30° with the vertical direction.
4. The demoulding mechanism according to claim 2, characterized in that: It also comprises two pressing blocks (5), the sliding block (31) being located between the two pressing blocks (5), and the sliding block (31) being in sliding contact with the two pressing blocks (5).
5. The demoulding mechanism according to claim 2, characterized in that: The mortise and tenon structure (4) comprises a guide block (41) provided on the slide block (31) and a guide groove (42) provided on the steel member (1); the guide block (41) is inserted into the guide groove (42) and slides and abuts against the guide groove (42).
6. The demoulding mechanism according to claim 5, characterized in that: The sliding block (31) is provided with a third inclined surface (312), the steel component (1) is provided with a fourth inclined surface (12), the third inclined surface (312) and the fourth inclined surface (12) are in sliding contact with each other; the third inclined surface (312) and the fourth inclined surface (12) are arranged at an angle of 0°-20° with the horizontal direction.
7. The demoulding mechanism according to claim 1, characterized in that: The steel part (1) is formed by connecting two inserts (11), and an exhaust groove (13) is formed between the two inserts (11).
8. The demoulding mechanism according to claim 7, characterized in that: The steel part (1) is provided with a screw (14), and the two inserts (11) are connected and fixed by means of the screw (14).
9. The demoulding mechanism according to claim 8, characterized in that: The steel component (1) is also provided with a pin (15), and the two inserts (11) are positioned and installed via the pin (15).
10. An injection mold, characterized in that: It comprises a demoulding mechanism as described in any one of claims 1 to 9.