A fixed mold with a casting ejection function

Abstract

The utility model discloses a fixed mould die with casting ejection function belongs to die casting die technical field, including die carrier, the one end surface of die carrier can be connected with movable mould to form the cavity, and the one end of die carrier is away from movable mould and is provided with the mounting slot, is provided with the drive arrangement in the mounting slot, be provided with at least a first through -hole in the die carrier, and the one end of first through -hole is connected with the cavity, and its other end is connected with the mounting slot, and the thimble is set up in first through -hole, and the thimble is connected with drive arrangement to reciprocate in first through -hole along its axial direction under the driving of drive arrangement, for the ejection of the molding casting. The utility model discloses a fixed mould die with casting ejection function is provided with drive arrangement in fixed mould die carrier, and drive arrangement drives the thimble to move, makes fixed mould die have casting ejection function, to eject the die casting from fixed mould die when fixed mould and movable mould separate, and the die casting is tightly ejected on movable mould, to realize the smooth demoulding of subsequent.

Description

Technical Field

[0001] This utility model belongs to the field of die casting mold technology, specifically relating to a fixed mold with casting ejection function. Background Technology

[0002] Die casting is a metal casting process that uses a mold cavity to apply high pressure to molten metal to obtain the corresponding product or part. Because die casting often has advantages such as high dimensional accuracy, fast production speed, and good product performance, it is widely used in the mass production of automotive parts, aircraft parts, and other products, and has good economic benefits.

[0003] When designing molds, due to the limitations of the product structure, there is sometimes a problem of excessive clamping force in the fixed mold. In this case, a pre-ejection structure is usually required. It is mainly used in the initial stage of mold opening. When the moving mold and the fixed mold just begin to separate, the casting can be slightly ejected or loosened from the fixed mold part to help with smooth demolding later and avoid the casting being torn, deformed or jammed during demolding.

[0004] Existing die-casting mold pre-ejection methods typically employ spring pre-ejection mechanisms to provide pre-ejection force to the casting. These mechanisms are widely used due to their simple structure and low cost. However, they also have some significant drawbacks and limitations. For example, the spring force is usually relatively small, especially with large castings or high clamping forces. The ejection force provided by the spring may be insufficient to effectively eject or loosen the casting from the mold. Excessive spring compression can easily lead to over-compression, reduced lifespan, or diminished spring force.

[0005] Therefore, a new type of fixed mold is needed to provide a pre-ejection force when the fixed mold and moving mold separate, so as to eject the casting from the fixed mold and facilitate subsequent casting demolding. Utility Model Content

[0006] In view of one or more of the above-mentioned defects or improvement needs of the prior art, the present invention provides a fixed mold with casting ejection function, wherein the ejector pin is driven to move in the mold frame to provide a pre-ejection force to the die casting, so as to separate the die casting from the fixed mold, and the die casting can be quickly separated from the fixed mold.

[0007] To achieve the above objectives, this utility model provides a fixed mold with a casting ejection function, comprising a mold frame, one end face of which can engage with a moving mold to form a cavity. The mold frame has an installation groove on one end away from the moving mold, and a driving device is provided in the installation groove. The driving part of the driving device is fixedly connected to the mold frame. The mold frame has at least one first through hole, one end of which is connected to the cavity and the other end of which is connected to the mounting groove. An ejector pin is provided in the first through hole. The end of the ejector pin away from the cavity is connected to the movable part of the driving device, so that it can reciprocate along its axial direction in the first through hole under the drive of the driving device, in order to eject the molded casting.

[0008] As a further improvement of this utility model, it also includes a push plate disposed in the mounting groove; The push plate is fixedly connected to the ejector pin and the movable part of the drive device, respectively.

[0009] As a further improvement of this utility model, at least one second through hole is provided on the mold frame, the axial direction of the second through hole is the same as the axial direction of the first through hole, and a reset rod is provided in the second through hole; One end of the reset rod is connected to the push plate, and the other end can abut against the moving mold.

[0010] As a further improvement of this utility model, at least one guide component is also provided in the mounting groove, the guide component including a guide post fixedly connected to the mold frame and a guide sleeve fixedly connected to the push plate; The guide post extends axially along the first through hole. The guide sleeve slides and matches the guide post to guide the movement direction of the push plate.

[0011] As a further improvement of this utility model, at least one mounting hole is provided on the mold frame, the first end of the mounting hole is connected to the mounting groove, and the guide post is installed in the mounting hole.

[0012] As a further improvement of this utility model, the mounting hole is a through hole, and the second end of the mounting hole is located on the end face of the mold frame near the moving mold, so that the guide post can pass through the mounting hole from the second end of the mounting hole.

[0013] As a further improvement of this utility model, a fixing plate is provided in the mounting groove. Limiting components are respectively provided for the ejector pin, the reset rod, and the guide sleeve. The fixing plate is fixedly connected to the push plate, and a plurality of accommodating spaces are formed between the two for accommodating the limiting member, so that the push plate is fixedly connected to the ejector pin, the reset rod and the guide sleeve respectively.

[0014] As a further improvement of this utility model, a base plate is provided on the side of the driving device away from the cavity; The substrate is fixedly connected to the drive unit of the drive device and the mold frame, respectively.

[0015] As a further improvement of this utility model, a blind hole is provided at the bottom of the push plate, and the push plate and the driving device are configured as follows: In the ejected state, the bottom of the blind hole abuts against the movable part of the drive device; In the reset state, the bottom surface of the push plate abuts against the driving part of the driving device.

[0016] As a further improvement of this utility model, the driving device is multiple; And / or, The driving device is a hydraulic cylinder.

[0017] The aforementioned improved technical features can be combined with each other as long as they do not conflict with each other.

[0018] In summary, the technical solutions conceived by this utility model have the following beneficial effects compared with the prior art: (1) The fixed mold of this utility model with casting ejection function is provided with a driving device in the fixed mold frame, and the driving device can drive the ejector pin to move, so that the fixed mold has the casting ejection function, so that the die casting is ejected when the fixed mold and the moving mold are separated, so that the casting and the fixed mold are loosened and separated, and the die casting is pressed tightly on the moving mold by the ejector pin; (2) The fixed mold with casting ejection function of this utility model is provided with a push plate between the ejector pin and the driving device. Multiple driving devices can be provided on the bottom surface of the push plate, and multiple ejector pins can be provided on the top surface of the push plate, so as to realize the simultaneous control of multiple ejector pins. Guide sleeves, reset rods and other structures can be provided on the top plate to ensure the stable movement of the ejector pins and improve the safety redundancy of the mold. (3) The fixed mold with casting ejection function of this utility model adds a fixed plate and forms an accommodating space between the fixed plate and the push plate. Correspondingly, limiting parts are set on the ejector pin, reset rod and guide sleeve to realize the detachable connection between the push plate and the above-mentioned structural parts, which facilitates the replacement and assembly of each structural part in the fixed mold and improves the applicability of the fixed mold. (4) The fixed mold of this utility model with casting ejection function is set as a hydraulic cylinder by the driving device, and the position movement of the ejector pin is realized by the hydraulic cylinder. On the other hand, the hydraulic cylinder can be controlled by the external oil pipe for oil quantity control and by filling the cylinder with sufficient oil for self-control, so as to drive the ejector pin to provide ejection force for forming die casting. Attached Figure Description

[0019] Figure 1This is an exploded view of the overall structure of the fixed mold with casting ejection function in this embodiment of the utility model; Figure 2 This is a cross-sectional schematic diagram of a fixed mold with casting ejection function in an embodiment of this utility model; Figure 3 This is a schematic diagram of the fixed mold without a mold frame in an embodiment of this utility model; Figure 4 This is a schematic diagram of the push plate structure in an embodiment of this utility model; Figure 5 This is a schematic diagram of the structure of the hydraulic cylinder in an embodiment of this utility model; Figure 6 This is a cross-sectional schematic diagram of the hydraulic cylinder in an embodiment of this utility model; In all the accompanying drawings, the same reference numerals denote the same technical features, specifically: 1. mold frame; 2. fixing block; 3. push plate; 301. stepped through hole; 4. fixing plate; 5. guide post; 6. guide sleeve; 7. reset rod; 8. ejector pin; 9. hydraulic cylinder; 901. cylinder body; 902. piston; 903. head end cap; 904. tail end cap; 905. fixing screw; 906. sealing ring; 907. fixing nut; 908. oil injection bolt; 10. base plate. Detailed Implementation

[0020] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only for explaining the present utility model and are not intended to limit the present utility model. Furthermore, the technical features involved in the various embodiments of the present utility model described below can be combined with each other as long as they do not conflict with each other.

[0021] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0022] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this utility model, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0023] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0024] In this utility model, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0025] Example: In a preferred embodiment of this utility model, the fixed mold with casting ejection function is as follows: Figures 1-6 As shown in the diagram, the mold includes a mold base 1, one end of which can engage with a moving mold to form a cavity for forming a die-cast part. A mounting groove is provided on the end of the mold base 1 facing away from the moving mold. A first through hole is also provided in the mold base 1, one end of which communicates with the cavity, and the other end communicates with the mounting groove. An ejector pin 8 is disposed in the first through hole, and a driving device is installed in the mounting groove. The driving device includes a driving part and a movable part. The driving part is fixedly connected to the mold base 1, and the end of the ejector pin 8 away from the cavity is connected to the movable part, allowing the ejector pin 8 to reciprocate along its axial direction in the first through hole under the drive of the movable part. When the moving mold and the fixed mold separate, the driving device can drive the ejector pin 8 to eject the die-cast part from the fixed mold and press the die-cast part firmly onto the moving mold via the ejector pin 8. Through the cooperation of the driving device and the ejector pin 8, the die-cast part can be pre-ejected, facilitating subsequent demolding. Further explanation: the axial direction of the first through hole is a first direction.

[0026] Furthermore, the end face of the mold frame 1 that abuts against the moving mold is the first end face, and the second end of the mold frame 1 is the end of the mold frame 1 that is away from its first end. The mounting groove is opened on the second end face of the mold frame 1.

[0027] Furthermore, a push plate 3 is provided in the mounting groove. The push plate 3 can be connected to the ejector pin 8 and the movable part of the drive device respectively, so that the push plate 3 can be driven to reciprocate along the first direction through the movable part, thereby driving the ejector pin 8 to move. The side wall surface of the push plate 3 is in contact with the inner wall surface of the mounting groove to limit and guide the movement direction of the push plate 3, so as to ensure that it can move along the first direction.

[0028] In a preferred embodiment, there are multiple driving devices disposed in the mounting slot. The driving part is fixedly connected to the mold frame 1, the movable part is connected to the bottom surface of the push plate 3, and the end of the ejector pin 8 away from the cavity is connected to the top surface of the push plate 3. When there are multiple first through holes, there are also multiple ejector pins 8, which are connected to the push plate 3, so that the multiple ejector pins 8 can move simultaneously through the push plate 3.

[0029] Furthermore, it also includes at least one reset rod 7. The mold frame 1 has a second through hole that can accommodate the reset rod 7. The axial direction of the second through hole is the same as the first direction. One end of the reset rod 7 is connected to the push plate 3, so that when the push plate 3 drives the ejector pin 8 to be ejected, the end of the reset rod 7 away from the push plate 3 will also extend out of the second through hole. At this time, the fixed mold and the moving mold are separated. After the moving mold and the fixed mold are rejoined, the moving mold abuts against the reset rod 7 and presses the reset rod 7 back into the second through hole. At this time, the reset rod 7 drives the push plate 3 to reset. Then, under the drive of the push plate 3, the position of the ejector pin 8 in the first through hole is also reset.

[0030] Furthermore, a guide post 5 is provided in the mounting groove, extending along the first direction, and a guide sleeve 6 is provided on the push plate 3. The guide post 5 is fixedly connected to the mold frame 1, and the guide sleeve 6 is fixedly connected to the push plate 3. The guide sleeve 6 can be sleeved on the outer periphery of the guide post 5, so that the guide sleeve 6 and the guide post 5 slide and match to achieve guiding and limiting of the push plate 3.

[0031] More preferably, a third through hole is provided on the push plate 3, penetrating its upper and lower surfaces, and the guide sleeve 6 is embedded in the third through hole. It should be noted that the third through hole should avoid coinciding with the drive device in the first direction, so as not to coincide with other structural parts in the fixed mold, which would limit the length of the guide post 5. The guide post 5 has sufficient length to prevent the guide sleeve 6 from falling off the guide post 5.

[0032] In a preferred embodiment, a mounting hole is provided on the mold frame 1, and the first end of the mounting hole is connected to the mounting groove, so that the guide post 5 can be installed in the mounting hole, thereby achieving a fixed connection with the mold frame 1.

[0033] Furthermore, the guide post 5 can be divided into two parts along its axial direction, namely the connecting part and the guiding part. The outer peripheral wall of the connecting part is provided with an external thread structure, while the inner peripheral wall of the mounting hole is provided with an internal thread structure. Through the threaded connection between the connecting part and the mounting hole, the guide post 5 can form a threaded connection with the mold frame 1. The guide sleeve 6 is sleeved on the outer periphery of the guiding part of the guide post 5 for sliding matching.

[0034] In another embodiment, the mounting hole is a through hole, and its second end is located on the first end face of the mold frame 1 (i.e. the end face of the mold frame 1 near the moving mold). Then, when installing the guide post 5, the guide post 5 can be placed in the mounting hole from the second end of the mounting hole. The guide post 5 is fixedly connected to the mold frame 1 through the connecting part.

[0035] More preferably, the mounting hole is a stepped hole, and the inner circumferential wall of the mounting hole is not provided with an internal thread structure. Correspondingly, the end of the guide post 5 away from the mounting groove is provided with a first limiting part, which abuts against the stepped surface of the mounting hole. The side of the first limiting part away from the mounting groove is also provided with a fixing block 2, which is fixedly connected to the mold frame 1 and presses the first limiting part against the stepped surface, thereby realizing the fixed connection of the guide post 5.

[0036] Furthermore, in order to achieve a flat first end face of the mold frame 1, a fixing groove is provided on the first end face of the mold frame 1. The fixing groove is connected to the second end of the mounting hole. The fixing block 2 is installed in the fixing groove. The surface of the fixing block 2 away from the bottom of the fixing groove is flush with the first end face of the mold frame 1. The fixing block 2 is also fixedly connected to the mold frame 1 to achieve the fixing of the guide post 5.

[0037] In addition, the guide post 5 can be fixedly connected to the fixing block 2, and the mounting hole is a through hole structure, so that while the fixing block 2 is fixedly connected to the mold frame 1, the guide post 5 and the mold frame 1 are also fixedly connected.

[0038] Furthermore, the ejector pin 8, the reset rod 7, and the guide sleeve 6 are all detachably connected to the push plate 3 so as to move under the drive of the push plate 3. The ejector pin 8, the reset rod 7, and the guide sleeve 6 are provided with external thread structure, and the push plate 3 is provided with threaded holes so that the two are fixedly connected by thread matching.

[0039] In another preferred embodiment, a fixing plate 4 is also provided corresponding to the push plate 3. The fixing plate 4 is disposed in the mounting groove and is disposed on the top surface of the push plate 3, and is fixedly connected to the push plate 3. Multiple accommodating spaces can be formed between the fixing plate 4 and the push plate 3. Limiting elements are respectively provided for the ejector pin 8, the reset rod 7, and the guide sleeve 6, so that by placing the limiting elements in the accommodating spaces, the combination of the fixing plate 4 and the push plate 3 can achieve the fixation of each structural component. A first limiting member is provided at the end of the ejector pin 8 away from the cavity. After the fixing plate 4 and the push plate 3 are joined, they can form a first receiving space for accommodating the first limiting member. A fifth through hole is provided on the fixing plate 4 to connect to the first receiving space, and the ejector pin 8 can pass through the fifth through hole. Furthermore, a first receiving groove is provided on the bottom surface of the fixing plate 4 and / or the top surface of the push plate 3 to form a first receiving space for accommodating the first limiting member.

[0040] Similarly, a second limiting member is provided at the end of the reset rod 7 away from the moving mold. After the fixed plate 4 and the push plate 3 are joined, a second receiving space for accommodating the second limiting member can be formed. The fixed plate 4 also has a sixth through hole so that the reset rod 7 can pass through the sixth through hole. The bottom surface of the fixed plate 4 and / or the top surface of the push plate 3 are respectively provided with a second receiving groove to form a second receiving space for accommodating the second limiting member.

[0041] Regarding the guide sleeve 6, it has an annular limiting element on its outer periphery, and a stepped through hole 301 on the fixing plate 4 and / or push plate 3. If either the fixing plate 4 or the push plate 3 is not provided with a stepped through hole 301, a through hole should still be provided. Figure 4 As shown, a stepped through hole 301 is provided on the push plate 3, with its large diameter section located close to the fixed plate 4. The fixed plate 4 is provided with a matching through hole, so that a third accommodating space matching the annular limiting member is provided between the fixed plate 4 and the push plate 3.

[0042] Furthermore, the fixing plate 4 and the push plate 3 can be connected by bolts.

[0043] Furthermore, a base plate 10 is provided on the side of the drive device away from the cavity. The top surface of the base plate 10 is in contact with and fixedly connected to the drive part of the drive device. The base plate 10 is also fixedly connected to the mold frame 1, thereby fixing the drive part of the drive device on the mold frame 1.

[0044] More preferably, the mounting groove is a stepped groove, and the base plate 10 is mounted on the stepped surface of the stepped groove and fixed to the stepped surface by bolts. At the same time, the base plate 10 and the guide post 5 are staggered to avoid affecting the length setting of the guide post 5.

[0045] Furthermore, a blind hole is provided at the bottom of the push plate 3, and the top part of the movable part extends into the blind hole. When it is necessary to apply a tightening force to the push plate 3 to push out the ejector pin 8, the end of the movable part abuts against the bottom of the blind hole, thereby lifting the push plate 3, thereby driving the ejector pin 8 to apply a pre-tightening force to the die casting until the die casting is pushed out. When the reset rod 7 presses the push plate 3 back to its original position, the bottom surface of the push plate 3 abuts against the drive part of the drive device to limit the push plate 3. At this time, the movable part can continue to retract under the control of the drive device, so that the movable part can be separated from the blind hole.

[0046] In actual operation, the drive device can be started first. Under the action of the reset rod 7, the ejector pin 8 remains in a fixed position. However, after the fixed mold and the moving mold are separated, its movable part can drive the push plate 3 to move, thereby applying an ejection force to the die casting through the ejector pin 8 to eject the die casting from the fixed mold, which facilitates the demolding of the die casting. Furthermore, the drive device can control the time and magnitude of the ejection force applied by the ejector pin 8 to the die casting, thereby improving work efficiency and stability.

[0047] Furthermore, the driving device is preferably a hydraulic cylinder 9, which includes a cylinder body 901 and a piston 902. The piston 902 is a movable part, and the cylinder body 901 is a driving part. The upper and lower ends of the cylinder body 901 are respectively provided with a head end cap 903 and a tail end cap 904, and a sealing element is provided between the head end cap 903 and the cylinder body 901. The piston 902 can pass through the head end cap 903, and a sealing element is also provided between the two to seal the internal environment of the cylinder body 901.

[0048] Meanwhile, the piston 902 includes a rod and a piston part that is movably matched with the cylinder 901. The outer peripheral wall of the piston part is provided with a plurality of annular grooves at intervals along the first direction, and a sealing ring 906 is provided in the annular grooves to divide the internal space of the cylinder 901 into two parts. Hydraulic oil is injected between the cylinder 901 and the tail end cap 904. An oil injection hole is provided on the tail end cap 904 to control the movement of the piston 902 by controlling the amount of hydraulic oil. A through hole is provided on the base plate 10 to allow the control pipeline to pass through and connect to the oil injection hole. An exhaust hole is also provided on the cylinder 901 near the head end cap 903 to facilitate the movement of the piston 902.

[0049] More preferably, a fixing screw 905 is provided between the head end cap 903 and the tail end cap 904, and the two are fixedly connected by a fixing nut 907. At the same time, the inside of the cylinder body 901 is a stepped through hole, so that the piston part can abut against the stepped surface when moving downward, thereby limiting the movement of the piston 902.

[0050] In one embodiment, an oil injection bolt 908 is provided and sealed for the corresponding oil injection hole so that when the reset rod 7 presses the push plate 3 back to its original position, the hydraulic oil in the cylinder 9 is squeezed, and then a clamping force is continuously applied to the push plate 3. The clamping force is then transmitted to the ejector pin 8 so that when the moving mold and the fixed mold separate, the hydraulic oil lifts the piston 902, and then drives the push plate 3 and the ejector pin 8 to move, thereby completing the ejection operation.

[0051] Those skilled in the art will readily understand that the above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A fixed mold with casting ejection function, characterized in that, Includes a mold base, one end face of which can engage with a moving mold to form a cavity. The mold frame has an installation groove on one end away from the moving mold, and a driving device is provided in the installation groove. The driving part of the driving device is fixedly connected to the mold frame. The mold frame has at least one first through hole, one end of which is connected to the cavity and the other end of which is connected to the mounting groove. An ejector pin is provided in the first through hole. The end of the ejector pin away from the cavity is connected to the movable part of the driving device, so that it can reciprocate along its axial direction in the first through hole under the drive of the driving device, in order to eject the molded casting.

2. The fixed mold with casting ejection function according to claim 1, wherein, It also includes a push plate disposed in the mounting slot; The push plate is fixedly connected to the ejector pin and the movable part of the drive device, respectively.

3. The fixed mold with casting ejection function according to claim 2, wherein, The mold frame is provided with at least one second through hole, the axis of the second through hole is the same as the axis of the first through hole, and a reset rod is provided in the second through hole; One end of the reset rod is connected to the push plate, and the other end can abut against the moving mold.

4. The fixed mold with casting ejection function according to claim 3, wherein, At least one guide component is also provided in the mounting slot, the guide component including a guide post fixedly connected to the mold frame and a guide sleeve fixedly connected to the push plate; The guide post extends axially along the first through hole. The guide sleeve slides and matches the guide post to guide the movement direction of the push plate.

5. The fixed mold with casting ejection function according to claim 4, wherein, The mold frame has at least one mounting hole, the first end of which is connected to the mounting groove, and the guide post is installed in the mounting hole.

6. The fixed mold with casting ejection function according to claim 5, wherein, The mounting hole is a through hole, and the second end of the mounting hole is located on the end face of the mold frame near the moving mold, so that the guide post can pass through the mounting hole from the second end of the mounting hole.

7. The fixed mold with casting ejection function according to any one of claims 4 to 6, wherein, A fixing plate is provided in the mounting slot. Limiting components are respectively provided for the ejector pin, the reset rod, and the guide sleeve. The fixing plate is fixedly connected to the push plate, and a plurality of accommodating spaces are formed between the two for accommodating the limiting member, so that the push plate is fixedly connected to the ejector pin, the reset rod and the guide sleeve respectively.

8. A fixed mold with casting ejection function according to any one of claims 1 to 6, wherein, A base plate is provided on the side of the driving device away from the cavity; The substrate is fixedly connected to the drive unit of the drive device and the mold frame, respectively.

9. A fixed mold with casting ejection function according to any one of claims 2 to 6, wherein, The push plate has a blind hole at its bottom, and the push plate and the drive device are configured as follows: In the ejected state, the bottom of the blind hole abuts against the movable part of the drive device; In the reset state, the bottom surface of the push plate abuts against the driving part of the driving device.

10. A fixed mold with casting ejection function according to any one of claims 1 to 6, wherein, The driving device is multiple; And / or, The driving device is a hydraulic cylinder.

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