Injection mold

Abstract

The utility model relates to an injection mold, and relates to the technical field of molds, the injection mold comprises a demolding mechanism, the demolding mechanism comprises a plurality of sliding blocks, pushing pieces and binding blocks, the sliding blocks correspond to product cavities one to one, parts of the sliding blocks are located in the product cavities, and the sliding blocks slide in mounting cavities; the binding block is fixed on the female die core, is arranged between the two adjacent sliding blocks and is propped against the sliding blocks; the pushing pieces are in one-to-one correspondence with the sliding blocks; when the mold is opened, the female mold is driven to move towards one side far away from the male mold to drive the female mold core and the binding block to move, the binding block relieves the limitation on the sliding block, and the pushing piece pushes the sliding block to move towards one side far away from the product. Through design and mutual cooperation of the sliding block, the pushing piece and the beam block, the occupied space of the demolding mechanism in the multi-cavity mold is reduced, the structure is simple and reasonable, the internal space of the mold can be effectively utilized, normal proceeding of the demolding process can be ensured, and the production efficiency and the product quality are improved.

Description

Technical Field

[0001] The present application relates to the field of mold technology, and in particular to an injection mold. Background Art

[0002] Multi-cavity molds are a type of efficient processing equipment in modern industrial production. By setting up multiple chambers inside the mold, multiple products can be molded at the same time, thereby greatly improving production efficiency and economic benefits. Multi-cavity molds are widely used in the fields of automobiles, electronics, home appliances, etc., and have become an indispensable tool in modern manufacturing.

[0003] In a multi-cavity mold, each product requires a corresponding slider for demoulding. In order to achieve demoulding of the slider and the product, a lateral core pulling mechanism is usually required; in actual production, in order to ensure the stability and durability of the mold, the slider structure is often complex and has a large number of parts, which requires a large ejection space in the mold to ensure the normal operation of the slider; however, this practice results in too much space required for demoulding of the internal slider, and the distance between adjacent products becomes larger, affecting the production efficiency and economic benefits of the mold.

[0004] Therefore, it is urgent to develop a multi-cavity mold that can reduce the space occupied by the internal slider and ensure the normal operation of the slider. Utility Model Content

[0005] In order to develop a multi-cavity mold that can reduce the space occupied by an internal slider and ensure the normal operation of the slider, the present application provides an injection mold.

[0006] The present application provides an injection mold that adopts the following technical solution:

[0007] An injection mold, comprising a male mold and a female mold, wherein the male mold and the female mold are respectively provided with a male mold core and a female mold core, and an installation cavity and a plurality of product cavities are provided between the female mold core and the male mold core;

[0008] It also includes a demoulding mechanism, which is arranged in the installation cavity, and the demoulding mechanism includes a plurality of sliders, a pushing member and a bundle block. The slider corresponds to the product cavity one by one and is partially located in the product cavity, and the slider slides in the installation cavity; the bundle block is fixed to the mother mold core, and the bundle block is arranged between two adjacent sliders and contacts the slider; the pushing member corresponds to the slider one by one; when opening the mold, the mother mold is driven to move, and the mother mold core and the bundle block are driven to move, and the bundle block releases the restriction on the slider, and the pushing member pushes the slider to move toward the side away from the product cavity.

[0009] By adopting the above technical scheme, when the mold is opened, the female mold is driven to move to the side away from the male mold, driving the female mold core and the bundle block to move together. The movement of the female mold core drives the bundle block to move, and the restriction on the slider is released. At this time, the pushing member pushes the slider to move to the side away from the product cavity, so that the slider is separated from the molded product in the product cavity, thereby realizing the simultaneous demolding of multiple sliders and products in the multi-cavity mold; the present application reduces the occupied space of the slider demolding mechanism in the multi-cavity mold through the mutual coordination of the designs of the slider, the pushing member and the bundle block. The structure is simple and reasonable, can more effectively utilize the internal space of the mold, improves the compactness and efficiency of the mold design, and can ensure the normal progress of the demolding process, so that the demolding work in the opening and closing process is more reliable and smooth, thereby improving production efficiency and product quality.

[0010] In a specific possible implementation scheme, the pushing member includes a spring, the slider is provided with a groove, the spring is arranged in the groove, one end of the spring abuts against the inner wall of the male mold core, and the other end abuts against the bottom wall of the groove.

[0011] By adopting the above technical solution, when the mold is closed, the bundle block is supported on two adjacent sliders. At this time, the spring in the slider groove is subjected to the supporting pressure of the bundle block, and the spring will be pressed against the inner wall of the male mold core and the bottom wall of the groove. The spring will be compressed and stored. During this process, one end of the spring is in contact with the inner wall of the male mold core, and the other end is in contact with the bottom wall of the groove, which helps to ensure that the spring works firmly in the appropriate position; when the mold is opened, the bundle block releases the restriction on the two adjacent sliders. At this time, the spring will assist in pushing the slider to move to the side away from the product cavity, thereby separating the slider from the molded product in the product cavity and completing the demolding work; during this process, the compression effect of the spring can provide the necessary driving force to promote the smooth movement of the slider, thereby improving the efficiency and stability of the mold operation.

[0012] In a specific possible implementation manner, the bundle block is provided with two first inclined surfaces, and the slider is provided with a second inclined surface, and the first inclined surface abuts against and fits with the second inclined surface of the adjacent slider.

[0013] By adopting the above technical solution, the fitting design of the first inclined surface and the second inclined surface can ensure that during the demolding process, the bundle block and the slider can be tightly connected to avoid looseness or misalignment, so that the bundle block and the slider can be smoothly separated during demolding, providing a more convenient demolding operation; and during the resetting process, the contact and fitting of the first inclined surface and the second inclined surface can also provide accurate alignment, so that the bundle block and the slider can quickly return to their initial positions.

[0014] In a specific possible implementation scheme, it also includes a plurality of inclined guide pillars, each of which corresponds to the slider one by one, and each of which is fixed to the female mold core, and each of which is inserted into the slider and slides in the slider.

[0015] By adopting the above technical solution, the inclined guide pin is inserted into the slider and slides inside the slider, so as to achieve smooth movement and position adjustment of the slider, which helps to control the speed and position of demolding; the inclined guide pin plays the role of guiding and supporting the slider, ensuring the stability and accuracy of the slider during demolding and resetting.

[0016] In a specific implementation manner, the angle formed between the first inclined surface and the vertical direction is set to a, the angle formed between the inclined guide column and the vertical direction is set to b, and a is greater than b.

[0017] By adopting the above technical solution, by setting the inclination angle of the first inclined surface to be greater than the inclination angle of the inclined guide column, it is helpful to reduce the resistance during the sliding process and can effectively guide the movement of the slider, thereby achieving reset guiding performance, ensuring the smooth movement and accurate reset of the slider during the demolding process, and improving the stability and accuracy of the slider in continuous injection molding cycles, thereby improving the production efficiency of the mold and product quality.

[0018] In a specific possible implementation manner, a is 1°-3° greater than b.

[0019] In a specific possible implementation scheme, the bottom surface of the inclined guide column is set to be an arc surface.

[0020] By adopting the above technical solution, the arc surface design can provide greater fault tolerance, which can improve the accuracy of the demolding and resetting movements of the inclined guide column, and the arc surface design can reduce the instability caused by friction or resistance, making the sliding smoother.

[0021] In a specific possible implementation scheme, it also includes a pressing plate, which is arranged on the male mold core, and the sliding block is fixed in the installation cavity through the pressing plate, and the sliding block contacts the pressing plate and slides on the pressing plate.

[0022] By adopting the above technical solution, the slider is fixed in the installation cavity by using a pressure plate, which effectively fixes the position of the slider so that the slider can fit closely with other parts of the injection mold, thereby ensuring the sealing and stability of the mold during the injection molding process. The design of the pressure plate simplifies the structure of the mold, reduces the number of parts in the mold, reduces the complexity of assembly and maintenance, and improves the reliability and service life of the mold.

[0023] In a specific possible implementation scheme, it also includes a limiting screw, which is arranged in the installation cavity and fixed on the pressure plate, and the limiting screw is arranged between two adjacent sliders and leaves a moving space with the sliders.

[0024] By adopting the above technical solution, the limit screw is used to limit the slider to move only within a predetermined range during the demolding process, thereby preventing the slider from exceeding the specified range and causing mold damage or production interruption; and the moving space between the slider and the limit screw can facilitate the smooth demolding movement or resetting of the slider.

[0025] In a specific possible implementation manner, the bundle block is provided with a boss structure, and the boss structure is clamped on two adjacent sliding blocks.

[0026] By adopting the above technical solution, the design of the boss structure can enhance the connection stability between the bundle block and the slider, prevent the bundle block from detaching from the slider during operation, ensure the stability and reliability of the entire structure, and the boss structure can be clamped on the slider to provide additional positioning support, ensuring that the bundle block remains correctly positioned during the resetting process.

[0027] In summary, the present application includes at least one of the following beneficial technical effects:

[0028] 1. The injection mold of the present application reduces the space occupied by the demoulding mechanism of the slider in the multi-cavity mold by the design of the slider, the pusher and the bundle block. The structure is simple and reasonable, and the number and complexity of the internal parts of the mold are reduced, so that the internal space of the mold can be more effectively utilized. By effectively utilizing the internal space of the mold, the compactness and efficiency of the mold are improved, so that more product cavities can be set in the mold of the same size, thereby improving production capacity and efficiency;

[0029] 2. The injection mold of the present application utilizes the fitting design of the first inclined surface and the second inclined surface to ensure that during the demolding process, the bundle block and the slider are tightly connected to avoid looseness or misalignment, so that the bundle block and the slider are smoothly separated during demolding, providing a more convenient demolding operation; and during the resetting process, the abutment and fitting of the first inclined surface and the second inclined surface can also provide accurate alignment, so that the bundle block and the slider can quickly return to their initial positions.

[0030] 3. The injection mold of the present application utilizes a limit screw to limit the movement of the slider within a predetermined range during the demolding process, thereby preventing the slider from exceeding the specified range and causing mold damage or production interruption; and the moving space between the slider and the limit screw can facilitate the smooth demolding movement or resetting of the slider. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 It is a schematic diagram for showing the structure of the male mold core and the female mold core in the embodiment of the present application.

[0032] Figure 2 It is a cross-sectional view used to show the demoulding mechanism in the embodiment of the present application.

[0033] Figure 3 It is a cross-sectional view used to show the slider, the inclined guide column and the bundle block in the embodiment of the present application.

[0034] Explanation of the reference numerals in the accompanying drawings: 1. male mold; 11. male mold core; 2. female mold; 21. female mold core; 5. demoulding mechanism; 51. slider; 511. groove; 512. second inclined surface; 52. pushing member; 521. spring; 53. bundle block; 531. first inclined surface; 54. inclined guide column; 55. limit screw; 6. pressure plate; 7. material head; 8. main flow channel; 9. branch flow channel; 91. horizontal flow channel; 92. inclined flow channel; 93. vertical flow channel; 10. cold material trough. DETAILED DESCRIPTION

[0035] The following is combined with Figure 1-3 This application is described in further detail.

[0036] Reference Figure 1 and Figure 2 The embodiment of the present application discloses an injection mold, including a male mold 1 and a female mold 2, wherein the male mold 1 and the female mold 2 are respectively provided with a male mold core 11 and a female mold core 21, and an installation cavity 3 and a plurality of product cavities 4 are provided between the female mold core 21 and the male mold core 11. In the present embodiment, the product cavities 4 include but are not limited to being set to 4;

[0037] The injection mold further includes a demoulding mechanism 5, which is disposed in the mounting cavity 3. The demoulding mechanism 5 includes a plurality of sliders 51, pushers 52, and bundle blocks 53. In this embodiment, the number of sliders 51, the number of pushers 52, and the number of bundle blocks 53 are 4, but not limited to 4. One bundle block 53 corresponds to two sliders 51. The sliders 51 correspond to the product cavities 4 one by one, and a part of the structure of the sliders 51 is located in the product cavity 4. The sliders 51 slide in the mounting cavity 3.

[0038] The bundle block 53 is fixed to the female mold core 21. In this embodiment, the bundle block 53 includes but is not limited to being fixed to the female mold core 21 by bolts. Two bundle blocks 53 are respectively arranged between two adjacent sliders 51, and the bundle block 53 is in contact with and fits with the two adjacent sliders 51.

[0039] The injection mold further includes a pressing plate 6, which is arranged on the male mold core 11. In the present embodiment, the pressing plate 6 includes but is not limited to being fixed on the male mold core 11 by bolts, and the slider 51 is fixed in the mounting cavity 3 by the pressing plate 6. The pressing plate 6 presses the side of the slider 51 away from the pressing plate 6 against the bundle block 53, and the slider 51 contacts the pressing plate 6 and slides along the pressing plate 6 on the pressing plate 6; the pressing plate 6 fixes the slider 51 in the mounting cavity 3, effectively fixing the position of the slider 51, so that the slider 51 can fit closely with other components in the mounting cavity 3 of the injection mold, ensuring the sealing and stability of the mold during the injection molding process. The design of the pressing plate 6 simplifies the structure of the mold, reduces the number of parts in the mold, reduces the complexity of assembly and maintenance, and improves the reliability and service life of the mold;

[0040] The pusher 52 is arranged in one-to-one correspondence with the slider 51. The pusher 52 includes a spring 521. The slider 51 is provided with a groove 511. The spring 521 is arranged in the groove 511. One end of the spring 521 abuts against the inner wall of the male mold core 11, and the other end abuts against the bottom wall of the groove 511. The compression of the spring 521 can provide a driving force to promote the smooth movement of the slider 51 during the demoulding process, thereby improving the efficiency and stability of the mold operation.

[0041] Before use, install the spring 521 into the groove 511 of the slider 51, then install the slider 51 into the installation cavity 3, and then use bolts to connect the pressure plate 6 with the male mold core 11. The pressure plate 6 fixes the slider 51 in the installation cavity 3, and the pressure plate 6 presses the slider 51 against the bundle block 53 and other components in the installation cavity 3; when the mold is closed, the bundle block 53 is pressed against the two adjacent sliders 51. At this time, the spring 521 in the groove 511 of the slider 51 is subjected to the pressing pressure of the bundle block 53, and the spring 521 will contact the inner wall of the male mold core 11 and the groove The bottom wall of the groove 511 is pressed tightly, and the spring 521 will be compressed and stored; when the mold is opened, the female mold 2 is driven to move to the side away from the male mold 1, driving the female mold core 21 and the bundle block 53 to move together, and the movement of the female mold core 21 drives the bundle block 53 to move, releasing the restriction of the bundle block 53 on the two adjacent sliders 51. At this time, the spring 521 will assist in pushing the slider 51 to move to the side away from the product cavity 4, so that the slider 51 is separated from the molded product in the product cavity 4, thereby realizing the simultaneous demolding of multiple sliders 51 and products in the multi-cavity mold;

[0042] The present application reduces the space occupied by the demolding mechanism 5 of the slider 51 in a multi-cavity mold by coordinating the designs of the slider 51, the pusher 52 and the bundle block 53. The structure is simple and reasonable, the number and complexity of the internal parts of the mold are reduced, and the internal space of the mold can be used more effectively. By effectively using the internal space of the mold, the compactness and efficiency of the mold are improved, so that more product cavities 4 can be set in the mold of the same size, thereby improving production capacity and efficiency. In addition, during the demolding process, the coordination between the slider 51, the pusher 52 and the bundle block 53 makes the operation of the mold smoother and more controllable, reduces the problems and downtime that may occur due to demolding, and improves the stability and reliability of the production line.

[0043] Reference Figure 2 and Figure 3 The bundle block 53 is provided with a boss structure, and the boss structure is clamped on two adjacent sliders 51; by providing the boss structure, the connection stability between the bundle block 53 and the slider 51 can be enhanced to prevent the bundle block 53 from being separated from the slider 51 during operation, thereby ensuring the stability and reliability of the entire structure, and the boss structure clamped on the slider 51 can provide additional positioning support to ensure that the bundle block 53 maintains the correct positioning during the resetting process;

[0044] Each cluster block 53 is provided with two first inclined surfaces 531, and the slider 51 is provided with a second inclined surface 512, and the first inclined surface 531 is in contact with and fits with the second inclined surface 512 of the adjacent slider 51; the fitting design of the first inclined surface 531 and the second inclined surface 512 can ensure that during the demolding process, the cluster block 53 and the slider 51 can be tightly connected to avoid looseness or misalignment, so that the cluster block 53 and the slider 51 can be separated smoothly during demolding, providing a more convenient demolding operation; and during the resetting process, the contact and fit between the first inclined surface 531 and the second inclined surface 512 can also provide accurate alignment, so that the cluster block 53 and the slider 51 can quickly return to their initial positions.

[0045] The demoulding mechanism 5 further includes a plurality of inclined guide posts 54. In the present embodiment, the number of the inclined guide posts 54 is 4. The inclined guide posts 54 correspond to the sliders 51 one by one. The inclined guide posts 54 are fixed to the female mold core 21. In the present embodiment, the inclined guide posts 54 include but are not limited to being fixed to the female mold core 21 by bolts. The inclined guide posts 54 are inserted into the sliders 51 and slide against each other in the sliders 51. The inclined guide posts 54 guide and support the sliders 51, ensuring the stability and accuracy of the sliders 51 during demoulding and resetting. The setting of the inclined guide posts 54 can realize the smooth movement and position adjustment of the sliders 51, which is helpful to control the speed and position of demoulding.

[0046] The bottom surface of the inclined guide column 54 is set to an arc surface; the design of the arc surface can provide greater fault tolerance, which can improve the accuracy of the demolding movement and reset movement of the inclined guide column 54, and the design of the arc surface can reduce the instability caused by friction or resistance, making the sliding smoother.

[0047] Reference Figure 2 and Figure 3 , the angle formed between the first inclined surface 531 and the vertical direction, the angle formed between the second inclined surface 512 and the vertical direction are set to a, the angle formed between the inclined guide column 54 and the vertical direction is set to b, a is 1°-3° larger than b, and in this embodiment, a is 2° larger than b; by setting the angle difference range between the second inclined surface 512 and the inclined guide column 54, the resetting guiding performance can be achieved, ensuring the smooth movement and accurate resetting of the slider 51 during the demolding process, improving the stability and accuracy of the slider 51 in the continuous injection molding cycle, thereby improving the production efficiency and product quality of the mold.

[0048] Reference Figure 2 The demoulding mechanism 5 also includes a limiting screw 55, which is arranged in the mounting cavity 3 and fixed on the pressing plate 6. In the present embodiment, there are two limiting screws 55, and one limiting screw 55 is arranged corresponding to two adjacent sliders 51. The limiting screw 55 is arranged between two adjacent sliders 51 and leaves a moving space with the sliders 51; during the demoulding process, the limiting screw 55 limits the slider 51 to move only within a predetermined range, so as to prevent the slider 51 from exceeding the prescribed range and causing damage to the mold or interruption of production; during this process, the moving space between the slider 51 and the limiting screw 55 can facilitate the smooth demoulding movement or resetting of the slider 51.

[0049] The implementation principle of the embodiment of the present application is as follows: the present application mainly reduces the occupied space of the demoulding mechanism 5 of the slider 51 in the multi-cavity mold by cooperating with each other in the design of the slider 51, the pusher 52 and the bundle block 53, improves the compactness and efficiency of the mold design, and can ensure the normal progress of the demoulding process, so that the demoulding work in the opening and closing process is more reliable and smooth;

[0050] Before use, install the spring 521 into the groove 511 of the slider 51, and then install the slider 51 into the installation cavity 3; fix the limit screw 55 on the pressure plate 6, and then use bolts to connect the pressure plate 6 with the male mold core 11, the pressure plate 6 fixes the slider 51 in the installation cavity 3, and the pressure plate 6 presses the slider 51 against the bundle block 53 and other components in the installation cavity 3. At the same time, the limit screw 55 will be located in the installation cavity 3 of the mold, and the limit screw 55 will be located between two adjacent sliders 51 and will leave moving space with the slider 51;

[0051] When the mold is closed, the bundle block 53 is pressed against two adjacent sliders 51, and the first inclined surface 531 of the bundle block 53 is pressed against the second inclined surface 512 of the slider 51, and the inclined guide column 54 is inserted into the slider 51 to guide and support the slider 51. In this process, the slider 51 is subjected to the pressing pressure of the bundle block 53 and the inclined guide column 54, and the spring 521 in the groove 511 of the slider 51 is subjected to the same pressure, so that the spring 521 is pressed against the inner wall of the male mold core 11 and the bottom wall of the groove 511, and the spring 521 is compressed and stored.

[0052] When the mold is opened, the female mold 2 is driven to move to the side away from the male mold 1, driving the female mold core 21, the bundle block 53 and the inclined guide column 54 to move together. The movement of the female mold core 21 drives the bundle block 53 and the inclined guide column 54 to move, releasing the restriction of the bundle block 53 on the two adjacent sliders 51, and releasing the restriction of the inclined guide column 54 on the corresponding slider 51; at this time, the spring 521 will assist in pushing the slider 51 to move to the side away from the product cavity 4. When the slider 51 encounters the limit screw 55, the limit screw 55 will resist the two adjacent sliders 51, limit the moving stroke of the slider 51, and prevent the slider 51 from exceeding the moving range; at this time, the slider 51 is separated from the molded product in the product cavity 4, realizing the simultaneous demoulding of multiple sliders 51 and products in the multi-cavity mold;

[0053] When resetting is required, the female mold 2 is driven to move toward the side of the male mold 1, driving the female mold core 21 and the bundle block 53 to move together. The movement of the female mold core 21 drives the bundle block 53 to move. The first inclined surface 531 of the bundle block 53 will cooperate with the second inclined surface 512 of the slider 51. The bundle block 53 can be inserted between the two sliders 51 along the guidance of the first inclined surface 531 and the second inclined surface 512 and press against the slider 51. At the same time, the inclined guide column 54 will be inserted into the corresponding slider 51 along the guidance of its inclined surface structure and press against the slider 51, thereby completing the resetting work of the demolding mechanism 5 and preparing for the next injection and demolding work.

[0054] 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. An injection mold, comprising a male mold (1) and a female mold (2), wherein the male mold (1) and the female mold (2) are respectively provided with a male mold core (11) and a female mold core (21), and an installation cavity (3) and a plurality of product cavities (4) are provided between the female mold core (21) and the male mold core (11), characterized in that: The mold release mechanism (5) comprises a demoulding mechanism (5) which is arranged in the installation cavity (3). The demoulding mechanism (5) comprises a plurality of sliders (51), a pusher (52) and a bundle block (53). The sliders (51) correspond to the product cavity (4) one by one and are partially located in the product cavity (4). The sliders (51) slide in the installation cavity (3). The bundle block (53) is fixed to the female mold core (21). The bundle block (53) is arranged between two adjacent sliders (51) and contacts the sliders (51). The pusher (52) corresponds to the sliders (51) one by one. When the mold is opened, the female mold (2) is driven to move toward a side away from the male mold (1), driving the female mold core (21) and the bundle block (53) to move. The bundle block (53) releases the restriction on the slider (51), and the pusher (52) pushes the slider (51) to move toward a side away from the product cavity (4).

2. The injection mold according to claim 1, characterized in that: The pushing member (52) comprises a spring (521), the sliding block (51) is provided with a groove (511), the spring (521) is arranged in the groove (511), one end of the spring (521) abuts against the inner wall of the male mold core (11), and the other end abuts against the bottom wall of the groove (511).

3. The injection mold according to claim 1, characterized in that: The bundle block (53) is provided with two first inclined surfaces (531), the sliding block (51) is provided with a second inclined surface (512), and the first inclined surface (531) is in contact with and fits with the second inclined surface (512) of the adjacent sliding block (51).

4. The injection mold according to claim 3, characterized in that: It also comprises a plurality of inclined guide pillars (54), the inclined guide pillars (54) corresponding one to the slider (51), the inclined guide pillars (54) being fixed to the female mold core (21), the inclined guide pillars (54) being inserted into the slider (51) and sliding in the slider (51).

5. The injection mold according to claim 4, characterized in that: The angle formed between the second inclined surface (512) and the vertical direction is set to a, and the angle formed between the inclined guide column (54) and the vertical direction is set to b, and a is greater than b.

6. The injection mold according to claim 5, characterized in that: The a is 1°-3° larger than the b.

7. The injection mold according to claim 4, characterized in that: The bottom surface of the inclined guide column (54) is configured as an arc surface.

8. The injection mold according to claim 1, characterized in that: It also includes a pressing plate (6), wherein the pressing plate (6) is arranged on the male mold core (11), the sliding block (51) is fixed in the installation cavity (3) via the pressing plate (6), and the sliding block (51) contacts the pressing plate (6) and slides on the pressing plate (6).

9. The injection mold according to claim 8, characterized in that: It also includes a limiting screw (55), which is arranged in the installation cavity (3) and fixed on the pressing plate (6), and a moving space is left between the sliding block (51) and the limiting screw (55).

10. The injection mold according to claim 1, characterized in that: The cluster block (53) is provided with a boss structure, and the boss structure is clamped on two adjacent sliding blocks (51).

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