Injection mold

Abstract

The utility model discloses an injection mold which comprises a mold base, an upper mold and a limiting piece, and the mold base is provided with a mold cavity with an upward opening; the upper mold is arranged above the mold base in a vertically movable mode, at least part of the upper mold is suitable for entering the mold cavity from the opening, an injection molding space is defined between the upper mold and the mold base, and the upper mold is provided with an injection molding channel and an injection molding opening which communicate with the injection molding space; the limiting piece is arranged on the mold base and used for limiting the position of the upper mold in the vertical direction. According to the injection mold disclosed by the embodiment of the utility model, the limiting piece used for limiting the position of the upper mold in the vertical direction is arranged, so that the position of the upper mold can be better limited during injection molding of an ornament, the position of the upper mold is effectively limited, and the sealing performance between the upper mold and the mold base can be better ensured; and the injection molding stability can be improved, so that the injection molding effect of the ornament is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of mold injection molding, and in particular to an injection mold. Background Art

[0002] Automobile trim refers to decorative products used inside and outside automobiles. Most automobile trims are made of plastic materials. When manufacturing and processing automobile trims, injection molds are required. Injection molds, also known as injection molding, are a molding method that combines injection and molding. The size can range from large to small, and the products have precise dimensions and can form parts with complex shapes. Injection molding is suitable for mass production and molding processing fields of products with complex shapes.

[0003] When an injection mold for processing plastic trim inside and outside an automobile is in use, the upper mold and the mold cavity need to be fitted, and then the remaining space of the mold cavity is injected and waited to cool and form. During the process of fitting the upper mold and the mold cavity, there may be problems with poor sealing effect. Without proper limiting, the upper mold is prone to moving, resulting in unstable injection molding. Summary of the Utility Model

[0004] The utility model aims to at least solve one of the technical problems existing in the prior art. For this reason, an object of the utility model is to provide an injection mold, which can preferably limit the upper mold, making the upper mold not easy to move, thus being beneficial to the stability of injection molding.

[0005] The injection mold according to an embodiment of the utility model includes: a mold base having a mold cavity with an upward opening; an upper mold movably disposed above the mold base in the up-and-down direction, and at least part of which is adapted to enter the mold cavity through the opening. An injection space is defined between the upper mold and the mold base. The upper mold is provided with an injection channel and an injection port communicating with the injection space; a limiting member disposed on the mold base for restricting the position of the upper mold in the up-and-down direction.

[0006] For the injection mold according to an embodiment of the utility model, by providing a limiting member for restricting the position of the upper mold in the up-and-down direction, the position of the upper mold can be preferably restricted during the injection molding of the trim. The position of the upper mold is effectively restricted, which can preferably ensure the sealing between the upper mold and the mold base, and is also beneficial to improving the stability of injection molding, thus being beneficial to improving the injection molding effect of the trim.

[0007] In addition, the injection mold according to the utility model may further have the following additional technical features:

[0008] In some embodiments of the present utility model, the injection mold further includes: at least one support column, a top plate, and a driving member. The lower end of the support column is connected to the mold base, the upper end of the support column is connected to the top plate, the driving member is installed on the top plate and is in transmission connection with the upper mold, and the driving member is used to drive the upper mold to move in the up and down directions.

[0009] In some embodiments of the present utility model, a guiding member is provided on the outer peripheral side of the upper mold. The guiding member is provided with a guiding portion that is in guiding cooperation with the support column, so that the guiding member moves up and down along the support column.

[0010] In some embodiments of the present utility model, the guiding portion is a guiding hole that penetrates the guiding member in the up and down directions.

[0011] In some embodiments of the present utility model, an avoidance groove that penetrates the guiding member in the up and down directions is further provided on the guiding member. One end of the avoidance groove is communicated with the guiding hole, and the other end of the avoidance groove extends to the side of the guiding member away from the upper mold. The limiting member is rotatably provided on the support column, and in the rotation direction, the limiting member has an avoidance position that is vertically opposite to the avoidance groove, and the limiting member also has a limiting position that is misaligned with the avoidance groove. Wherein, when the limiting member is in the avoidance position, the limiting member is adapted to be matched with the avoidance groove and the guiding hole, so that the guiding member passes through the limiting member in the up and down directions. When the limiting member is in the limiting position, the limiting member is adapted to be in vertical abutment with the guiding member to limit the position of the guiding member in the up and down directions.

[0012] In some embodiments of the present utility model, the limiting member includes: a mounting ring and a limiting plate. One end of the support column close to the mold base has a mounting section, and the mounting section has a mounting groove that surrounds the mounting section in the horizontal direction. The mounting ring is rotatably installed in the mounting groove of the mounting section, and one end of the limiting plate is connected to the mounting ring, and the other end extends in a direction away from the mounting ring.

[0013] In some embodiments of the present utility model, a cushion block is provided on the upper surface of the guiding member. When the limiting member is in the limiting position, the limiting plate is adapted to be in vertical abutment with the cushion block to limit the position of the guiding member in the up and down directions.

[0014] In some embodiments of the present utility model, the injection mold further includes: an ejector plate disposed in the mold cavity, a top block provided on the bottom surface of the upper mold, the top block being in abutment with the ejector plate to limit the distance between the bottom surface of the upper mold and the upper surface of the ejector plate; an elastic component disposed between the ejector plate and the bottom surface of the mold cavity to enable the ejector plate to move in the up and down directions through the elastic component; and a seal sealing between the ejector plate and the mold cavity.

[0015] In some embodiments of the present utility model, the elastic component includes: a damping ejector rod adapted to expand and contract in the up and down directions, an upper end of the damping ejector rod being connected to the ejector plate and a lower end of the damping ejector rod being connected to the bottom surface of the mold cavity; and a spring sleeved on an outer peripheral side of the damping ejector rod.

[0016] In some embodiments of the present utility model, the mold base further has a cooling cavity, and the injection mold further includes: a cold guide plate separating the cooling cavity from the mold cavity, wherein a liquid cooling pipe is disposed in the cooling cavity, and a water inlet pipe and a water outlet pipe are connected to the mold base, and two ends of the liquid cooling pipe are respectively connected to the water inlet pipe and the water outlet pipe.

[0017] Additional aspects and advantages of the present utility model will be given in part in the following description, become apparent in part from the following description, or be learned through the practice of the present utility model. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The above and / or additional aspects and advantages of the present utility model will become apparent and be readily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0019] Figure 1 is a cross-sectional view when the injection space is constructed by the injection mold according to the present utility model.

[0020] Figure 2 is a schematic structural view of the upper mold and the mold base of the injection mold according to the present utility model separated from each other.

[0021] Figure 3 is Figure 1 an enlarged view of area A in

[0022] Figure 4 is a schematic structural view of the guide member of the injection mold according to the present utility model.

[0023] REFERENCE SIGNS:

[0024] 100: injection mold;

[0025] 1. Mold base; 2. Cooling cavity; 3. Liquid cooling pipe; 4. Mold cavity; 5. Ejector plate; 6. Upper mold; 7. Guide; 8. Installation groove; 9. Support column; 10. Top plate; 11. Driving part; 12. Injection port; 13. Limit plate; 14. Installation ring; 15. Heat conduction plate; 16. Seal; 17. Injection channel; 18. Water inlet pipe; 19. Ejector block; 20. Water outlet pipe; 21. Damping ejector rod; 22. Spring; 23. Guide hole; 24. Avoidance groove; 25. Spacer block. Detailed implementation manners

[0026] The embodiments of the present utility model will be described in detail below. The examples of the embodiments are shown in the drawings, where the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the drawings are exemplary and are only used to explain the present utility model and should not be construed as a limitation of the present utility model.

[0027] In the description of the present utility model, it should be understood that the orientation or positional relationships indicated by the terms "upper", "lower", "front", "rear", "left", "right", etc. are based on the orientation or positional relationships shown in the drawings, and are only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation of the present utility model. In addition, the terms "first" and "second" are only used for descriptive purposes and should not be construed as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the present utility model, "a plurality of" means two or more unless otherwise specifically defined.

[0028] In the description of the present utility model, it should be noted that unless otherwise clearly specified and limited, the terms "installation", "connection", and "coupling" should be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or an integral connection; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium, and it may be the internal communication of two elements or the interaction relationship between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0029] Automobile trim parts refer to decorative products used inside and outside automobiles. Most automobile trim parts are made of plastic materials. When manufacturing and processing automobile trim parts, injection molds are required. Injection molds, also known as injection molding, are a molding method that combines injection and molding. The size can range from large to small, and the product size is precise. It can form parts with complex shapes. Injection molding is suitable for mass production and molding processing fields of products with complex shapes.

[0030] When using an injection mold for processing plastic trim parts inside and outside automobiles, the upper mold and the mold cavity need to be fitted together, and then the remaining space of the mold cavity is injected with plastic and waited for it to cool and solidify. During the process of fitting the upper mold and the mold cavity, there may be problems with poor sealing effect. Without proper positioning, the upper mold is prone to moving, resulting in unstable injection molding.

[0031] The present utility model proposes an injection mold 100, which can preferably position the upper mold 6, making the upper mold 6 not easy to move, thus facilitating the stability of injection molding.

[0032] The following refers to Figures 1 - 4 Describe the injection mold 100 according to an embodiment of the present utility model.

[0033] As Figures 1 - 4 shown, the injection mold 100 according to an embodiment of the present utility model includes a mold base 1, an upper mold 6, and a positioning member. The mold base 1 has a mold cavity 4 with an upward opening. The upper mold 6 is movably arranged above the mold base 1 and at least part of it is adapted to enter the mold cavity 4 through the opening. An injection space is defined between the upper mold 6 and the mold base 1. The upper mold 6 is provided with an injection channel 17 and an injection port 12 communicating with the injection space.

[0034] That is to say, when injecting trim parts, the upper mold 6 can first enter the mold cavity 4 from the opening of the mold cavity 4, and then there is a certain distance between the upper mold 6 and the bottom surface and side surface of the mold cavity 4, so as to construct an injection space between the upper mold 6 and the mold base 1. At this time, the liquefied injection liquid can enter the injection space from the injection port 12 along the injection channel 17. After the injection liquid cools and solidifies, the injected trim parts can be obtained. Here, the trim parts can be plastic parts or structural parts made of other materials through injection molding. This application does not make any restrictions.

[0035] Further, the limiting member is arranged on the mold base 1 and is used to limit the position of the upper mold 6 in the vertical direction. That is to say, after the upper mold 6 enters the mold cavity 4 from the opening of the mold cavity 4, the limiting member can limit the upper mold 6, so that the upper mold 6 is not easily displaced in the vertical direction. Thus, a relatively stable injection space can be constructed between the upper mold 6 and the mold base 1. In this way, when injecting the decorative part, the position of the upper mold 6 is effectively limited, which can better ensure the sealing performance between the upper mold 6 and the mold base 1, and is also conducive to improving the injection stability, thereby being conducive to improving the injection effect of the decorative part.

[0036] For the injection mold 100 according to the embodiment of the present invention, by arranging the limiting member for limiting the position of the upper mold 6 in the vertical direction, the position of the upper mold 6 can be better limited during the injection of the decorative part. The position of the upper mold 6 is effectively limited, which can better ensure the sealing performance between the upper mold 6 and the mold base 1, and is also conducive to improving the injection stability, thereby being conducive to improving the injection effect of the decorative part.

[0037] In some embodiments of the present invention, the injection mold 100 further includes at least one support column 9, a top plate 10 and a driving member 11. The lower end of the support column 9 is connected to the mold base 1, the upper end of the support column 9 is connected to the top plate 10, the driving member 11 is installed on the top plate 10 and is in transmission connection with the upper mold 6, and the driving member 11 is used to drive the upper mold 6 to move in the vertical direction.

[0038] As Figures 1 - 4 shown, the injection mold 100 includes two support columns 9. The two support columns 9 support between the top plate 10 and the mold base 1, and the driving member 11 and the upper mold 6 can both be hoisted on the top plate 10. The top plate 10 can be relatively stably installed on the mold base 1 through the two support columns 9, with good stability, compact structure, and simple and convenient driving of the upper mold 6.

[0039] Optionally, only one support column 9 can be provided, which can save costs. Of course, three or more support columns 9 can also be provided. By arranging multiple support columns 9, the bearing capacity of the top plate 10 can be improved, which is conducive to stably hoisting the driving member 11 and the upper mold 6 on the top plate 10, with strong reliability.

[0040] In some embodiments of the present utility model, a guide member 7 is provided on the outer peripheral side of the upper mold 6. The guide member 7 is provided with a guiding portion that is in guiding cooperation with the support column 9, so that the guide member 7 can move up and down along the support column 9. That is to say, through the cooperation of the guiding portion and the support column 9, the upper mold 6 can stably move along the support column 9 during the up and down movement, and the upper mold 6 is not likely to deviate. It can better enter the mold cavity 4 from the opening of the mold cavity 4. Moreover, after the upper mold 6 enters the mold cavity 4 from the opening of the mold cavity 4, the upper mold 6 is not likely to interfere with the mold base 1, thereby reducing the mutual damage between the upper mold 6 and the mold base 1, which is beneficial to extending the service life of the upper mold 6 and the mold base 1. And since the mold base 1 is always in a static state, and the upper mold 6 can stably move along the support column 9 during the up and down movement, the upper mold 6 can better construct an injection space with the mold base 1, so that multiple ornaments after multiple injections have better consistency.

[0041] In some embodiments of the present utility model, as Figures 1 - 4 shown, the guiding portion is a guiding hole 23 that penetrates the guide member 7 in the up and down direction. As shown in the figure, the guiding hole 23 is a circular hole, and the support column 9 is a cylinder. The support column 9 can pass through the guiding hole 23. Thus, the upper mold 6 can stably move along the support column 9 during the up and down movement, and the stability is better.

[0042] Exemplarily, the guiding hole 23 can also be a square hole, an oval hole, etc., and the present application does not make any restrictions.

[0043] In some embodiments of the present utility model, as Figures 1 - 4 shown, the guide member 7 is further provided with an avoidance groove 24 that penetrates the guide member 7 in the up and down direction. One end of the avoidance groove 24 is communicated with the guiding hole 23, and the other end of the avoidance groove 24 extends to the side of the guide member 7 away from the upper mold 6. The limiting member is rotatably provided on the support column 9, and in the rotation direction, the limiting member has an avoidance position that cooperates with the avoidance groove 24, and the limiting member also has a limiting position that is misaligned with the avoidance groove 24. Among them, when the limiting member is in the avoidance position, the limiting member is adapted to be matched with the avoidance groove 24 and the guiding hole 23, so that the guide member 7 passes through the limiting member in the up and down direction. When the limiting member is in the limiting position, the limiting member is adapted to be in abutting connection with the guide member 7 up and down to limit the position of the guide member 7 in the up and down direction. The term "misaligned" means that the limiting member and the avoidance groove 24 are not opposite or not completely opposite in the up and down direction. In this way, the limiting member cannot pass through the limiting groove 24, so that the limiting member is in abutting connection with the guide member 7 up and down to limit the position of the guide member 7 in the up and down direction.

[0044] As Figures 1 - 4As shown, the support column 9 is a cylinder. The limiting member can rotate around the axis of the support column 9, and the avoidance position and the limiting position of the limiting member are respectively on both sides of the radial direction of the support column 9, so as to Figure 2 take the limiting member on the left side in Figure 1 as an example. The limiting member can rotate to the left side of the support column 9, and this position is the avoidance position of the limiting member. At this time, the upper mold 6 can move downward. Then, through the adaptation of the limiting member with the avoidance groove 24 and the guiding hole 23, the limiting member can pass through the avoidance groove 24 and the guiding hole 23 of the guiding member 7, so that the upper mold 6 can move to the lower side of the limiting member. At this time, as

[0045] For the above example, it should be noted that only one support column 9 and the limiting member rotatably mounted on this support column 9 are taken as an example in the above example, but it is not a limitation to the present application. Figure 1 There are only two support columns 9 in Figure 1 . It can be understood that there can also be one or three or more than three support columns 9, and there is no limitation here.

[0046] In addition, the avoidance position and the limiting position of the limiting member can be respectively on both sides of the radial direction of the support column 9, or can be in other positions. For example, the limiting member can reach the limiting position by rotating ninety degrees from the avoidance position. Therefore, the present application does not limit the specific orientations of the avoidance position and the limiting position.

[0047] In some embodiments of the present utility model, as Figures 1 - 4 shown, the limiting member includes: a mounting ring 14 and a limiting plate 13. One end of the support column 9 close to the mold base 1 has a mounting section, and the mounting section has a mounting groove 8 surrounding the mounting section in the horizontal direction. The mounting ring 14 is rotatably mounted in the mounting groove 8 of the mounting section, and one end of the limiting plate 13 is connected to the mounting ring 14, and the other end extends in a direction away from the mounting ring 14.

[0048] As Figures 1 - 4As shown, the support column 9 is a cylinder, the guide hole 23 is a circular hole, and the diameter of the guide hole 23 is only slightly larger than the diameter of the support column 9. By constructing an installation groove 8 on the support column 9 and making the installation ring 14 fit perfectly in the installation groove 8, in this way, when the guide member 7 is in guiding cooperation with the support column 9 through the guide hole 23, the guide member 7 can move along the support column 9 well, so as to limit the position of the upper mold 6 better. And because the installation ring 14 fits perfectly in the installation groove 8, when the guide member 7 passes through the installation ring 14 of the limiting member, the guide member 7 will not interfere with the installation ring 14, so that the upper mold 6 can smoothly pass through the guide member 7 from bottom to top or from top to bottom. The structure is simple and the operation is convenient.

[0049] In some embodiments of the present invention, as Figures 1 - 4 shown, a cushion block 25 is provided on the upper surface of the guide member 7. When the limiting member is in the limiting position, the limiting plate 13 is adapted to abut against the cushion block 25 up and down to limit the position of the guide member 7 in the up and down direction. That is to say, the upper mold 6 can move to the lower side of the limiting member, and the limiting member can rotate to the limiting position, so that the limiting member abuts against the upper side of the guide member 7. At this time, the limiting member abuts against the cushion block 25. The cushion block 25 can improve the local structural strength of the guide member 7 and also improve the wear resistance between the guide member 7 and the limiting member, so that the guide member 7 can stably abut against the limiting member up and down for limiting, and further improve the stability of limiting the upper mold 6.

[0050] In some embodiments of the present invention, as Figures 1 - 4 shown, the injection mold 100 further includes an ejector plate 5, an elastic component and a seal 16. The ejector plate 5 is arranged in the mold cavity 4. A top block 19 is provided on the bottom surface of the upper mold 6. The top block 19 abuts against the ejector plate 5 to limit the distance between the bottom surface of the upper mold 6 and the upper surface of the ejector plate 5. The elastic component is arranged between the ejector plate 5 and the bottom surface of the mold cavity 4 to enable the ejector plate 5 to move in the up and down direction through the elastic component. The seal 16 seals between the ejector plate 5 and the mold cavity 4.

[0051] That is to say, the distance between the bottom surface of the upper mold 6 and the upper surface of the ejector plate 5 can be stably limited through the top block 19, which is beneficial to keeping the injection space with a stable space size. And by arranging the ejector plate 5 and the elastic component at the bottom of the upper mold 6, when constructing the injection space between the upper mold 6 and the mold base 1, the upper mold 6 will not have hard contact with the mold base 1, and mutual damage between the upper mold 6 and the mold base 1 can be avoided, thereby improving the service life between the upper mold 6 and the mold base 1.

[0052] In addition, through the limiting of the lower end of the upper mold 6 by the elastic component and the ejector plate 5, and the limiting of the upper end of the upper mold 6 by the limiting member, the upper mold 6 can be in a stable position better, which is beneficial to the injection molding of the decorative parts.

[0053] In some embodiments of the present utility model, such as Figures 1 - 4 shown, the elastic component includes a damping ejector rod 21 and a spring 22. The damping ejector rod 21 is adapted to expand and contract in the up and down directions. The upper end of the damping ejector rod 21 is connected to the ejector plate 5, and the lower end of the damping ejector rod 21 is connected to the bottom surface of the mold cavity 4. The spring 22 is sleeved on the outer peripheral side of the damping ejector rod 21.

[0054] That is to say, by providing the damping ejector rod 21, the upper mold 6 can be better supported when the upper mold 6 enters the mold cavity 4. In addition, when the spring 22 deforms, the spring 22 can also better deform along the damping ejector rod 21, with good stability.

[0055] In some embodiments of the present utility model, such as Figures 1 - 4 shown, the mold base 1 further has a cooling cavity 2. The injection mold 100 further includes a cold guide plate 15. The cooling cavity 2 and the mold cavity 4 are separated by the cold guide plate 15. Wherein, a liquid cooling pipe 3 is arranged in the cooling cavity 2. A water inlet pipe 18 and a water outlet pipe 20 are connected to the mold base 1. Two ends of the liquid cooling pipe 3 are respectively connected to the water inlet pipe 18 and the water outlet pipe 20.

[0056] That is to say, the cooling liquid can enter the liquid cooling pipe 3 from the water inlet pipe 18 and then flow out through the water outlet pipe 20. Thus, during the injection molding of the ornament, through the cooling liquid, the cold quantity can be better transferred to the ornament, which is conducive to the cooling and solidification of the ornament. In addition, by providing the cold guide plate 15 between the cooling cavity 2 and the mold cavity 4, the cold guide plate 15 can better transfer the cold quantity or heat between the cooling cavity 2 and the mold cavity 4, which is conducive to the cooling and solidification of the ornament and can improve the injection molding efficiency of the ornament.

[0057] Other components and operations of the injection mold according to the embodiments of the present utility model are known to those of ordinary skill in the art and will not be described in detail here.

[0058] In the description of this specification, the description with reference to terms such as "some embodiments", "optionally", "further", or "some examples" means that the specific features, structures, materials, or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present utility model. In this specification, the schematic expressions of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described can be combined in a suitable manner in any one or more embodiments or examples.

[0059] Although embodiments of the present utility model have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of the present utility model. The scope of the present utility model is defined by the claims and their equivalents.

Claims

1. An injection mold, characterized in that: include: A mold base, wherein the mold base has a mold cavity opening upward; an upper mold, the upper mold being movably disposed above the mold base and at least partially adapted to enter the mold cavity through the opening, an injection space being defined between the upper mold and the mold base, and the upper mold being provided with an injection channel and an injection port communicating with the injection space; A limiter is provided on the mold base, and is used to limit the position of the upper mold in the up and down directions.

2. The injection mold according to claim 1, characterized in that: Also includes: At least one support column, a top plate and a driving member, wherein the lower end of the support column is connected to the mold base, the upper end of the support column is connected to the top plate, the driving member is installed on the top plate and is transmission-connected to the upper mold, and the driving member is used to drive the upper mold to move in the up and down directions.

3. The injection mold according to claim 2, characterized in that: A guide piece is arranged on the outer peripheral side of the upper mold, and the guide piece is provided with a guide portion which cooperates with the guide of the support column so that the guide piece can move up and down along the support column.

4. The injection mold according to claim 3, characterized in that: The guide portion is a guide hole that penetrates the guide member in the up-down direction.

5. The injection mold according to claim 4, characterized in that: The guide member is also provided with an avoidance groove which penetrates the guide member in the up-down direction, one end of the avoidance groove is connected with the guide hole, and the other end of the avoidance groove extends to the side of the guide member away from the upper mold, and the limit member is rotatably arranged on the support column, and in the rotation direction, the limit member has an avoidance position which is opposite to the avoidance groove up and down, and the limit member also has a limit position which is misaligned with the avoidance groove, wherein, when the limit member is in the avoidance position, the limit member is suitable for matching with the avoidance groove and the guide hole so that the guide member passes through the limit member in the up-down direction, and when the limit member is in the limit position, the limit member is suitable for abutting against the guide member up and down to limit the position of the guide member in the up-down direction.

6. The injection mold according to claim 5, characterized in that: The limiting member includes: a mounting ring and a limiting plate. The support column has a mounting section at one end adjacent to the mold base. The mounting section has a mounting groove surrounding the mounting section in a horizontal direction. The mounting ring is rotatably mounted in the mounting groove of the mounting section. One end of the limiting plate is connected to the mounting ring, and the other end extends in a direction away from the mounting ring.

7. The injection mold according to claim 6, characterized in that: A cushion block is disposed on the upper surface of the guide member. When the limiting member is at the limiting position, the limiting plate is adapted to abut against the cushion block up and down to limit the position of the guide member in the up and down directions.

8. The injection mold according to any one of claims 1 to 7, characterized in that: Also includes: An ejector plate, the ejector plate is arranged in the mold cavity, the bottom surface of the upper mold is provided with an ejector block, the ejector block abuts against the ejector plate to limit the distance between the bottom surface of the upper mold and the upper surface of the ejector plate; An elastic component, wherein the elastic component is disposed between the ejector plate and the bottom surface of the mold cavity so that the ejector plate moves in an up-and-down direction through the elastic component; A seal is provided between the ejector plate and the mold cavity.

9. The injection mold according to claim 8, characterized in that: The elastic component comprises: A damping ejector rod, the damping ejector rod is suitable for telescopic deformation in the up-down direction, the upper end of the damping ejector rod is connected to the ejector plate, and the lower end of the damping ejector rod is connected to the bottom surface of the mold cavity; A spring is sleeved on the outer peripheral side of the damping ejection rod.

10. The injection mold according to claim 1, characterized in that: The mold base also has a cooling cavity, and the injection mold also includes: a cooling plate, and the cooling cavity and the mold cavity are separated by the cooling plate, wherein a liquid cooling pipe is arranged in the cooling cavity, and a water inlet pipe and a water outlet pipe are connected to the mold base, and both ends of the liquid cooling pipe are respectively connected to the water inlet pipe and the water outlet pipe.

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