Injection mold

Abstract

The utility model relates to an injection mold. The injection mold comprises a movable mold mechanism, a fixed mold mechanism, a fixed mold insert and a lifting assembly, the movable mold mechanism and the fixed mold mechanism get close to each other or get away from each other, the movable mold mechanism comprises a movable mold plate, and the fixed mold mechanism comprises a first fixed mold plate. The movable mold insert is arranged on the movable mold plate, the fixed mold insert is arranged on the first fixed mold plate, the fixed mold insert and the movable mold insert are oppositely arranged, a gap between the fixed mold insert and the movable mold plate is a forming station, and the forming station is used for placing a magnetic core. The lifting assembly is arranged on the fixed mold mechanism and used for pushing the magnetic core to abut against the movable mold insert. The injection mold has the advantages that the production quality is improved, and the machining cost is reduced.

Description

Technical Field

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

[0002] Injection molding is a processing method used in the mass production of certain parts with complex shapes. The specific principle is: the heated and melted plastic raw materials are pushed by the screw of the injection molding machine and injected into the mold cavity of the plastic mold at high pressure. After cooling and solidification, the plastic molded product is obtained.

[0003] After the magnetic core is placed in the molding station of the injection mold for injection molding, the plastic part can be combined with the magnetic core to complete the workpiece processing. When the injection mold is for injection molding around the side of the magnetic core, if the thickness of the magnetic core is less than the standard thickness, there will be a gap between the upper and lower surfaces of the magnetic core and the injection mold. During injection molding, the raw material will penetrate into the gap and cause the surface of the magnetic core to be burred; if the thickness of the magnetic core is greater than the standard thickness, the magnetic core will be higher than the molding station, and the mold cannot be closed normally, and the magnetic core can only be scrapped. Therefore, the existing injection molds have the defects of poor processing quality and high processing cost due to the large tolerance of the magnetic core. Summary of the invention

[0004] Based on this, it is necessary to provide an injection mold to address the problems of poor processing quality and high processing cost when the magnetic core has a large tolerance.

[0005] An injection mold, comprising:

[0006] A movable mold mechanism and a fixed mold mechanism, the movable mold mechanism and the fixed mold mechanism are close to or far away from each other, the movable mold mechanism includes a movable mold plate, and the fixed mold mechanism includes a first fixed mold plate;

[0007] A movable mold insert and a fixed mold insert, wherein the movable mold insert is arranged on the movable mold plate, and the fixed mold insert is arranged on the first fixed mold plate. The fixed mold insert and the movable mold insert are arranged opposite to each other, and the gap between the fixed mold insert and the movable mold plate is a molding station, and the molding station is used to place the magnetic core;

[0008] A lifting component is provided on the fixed mold mechanism, and is used for pushing the magnetic core to abut against the movable mold insert.

[0009] In one embodiment, a first accommodating cavity is provided between the first fixed mold plate and the fixed mold insert, the first accommodating cavity penetrates the surface of the fixed mold insert, the fixed mold insert is provided with a supporting member, the supporting member is movably arranged in the first accommodating cavity along the vertical direction, and the magnetic core is placed on the supporting member;

[0010] The fixed mold mechanism also includes a second fixed mold plate, the first fixed mold plate is connected to the second fixed mold plate, a second accommodating cavity is provided between the first fixed mold plate and the second fixed mold plate, the first accommodating cavity is communicated with the second accommodating cavity, the lifting component is arranged in the second accommodating cavity, the lifting component is connected to the support member, and the lifting component drives the support member to move in a vertical direction.

[0011] In one embodiment, the lifting assembly includes a driving unit, a stretching member and a lifting block, the driving unit is arranged on one side of the fixed mold mechanism, the stretching member is movably arranged in the second accommodating cavity, one end of the stretching member is connected to the output end of the driving unit, the lifting block is movably arranged on the stretching member, the supporting block is arranged on the lifting block, the abutting surface between the stretching member and the lifting block is set as a first inclined surface, the abutting surface between the lifting block and the stretching member is set as a second inclined surface, and the driving unit drives the stretching member to move in a horizontal direction.

[0012] In one embodiment, the lifting assembly further includes a first limit member, a second limit member and a third limit member, the first limit member is arranged at an end of the lifting block away from the driving unit, the lifting block is movably connected to the first limit member, the second limit member and the third limit member are respectively arranged on both sides of the lifting block, and the lifting block is movably connected to the second limit member and the third limit member.

[0013] In one embodiment, the first limiting member is provided with a first groove along the vertical direction, and the lifting block is provided with a first protrusion at the end close to the first limiting member, and the first protrusion is movably arranged in the first groove; the second limiting member is provided with a second groove along the vertical direction, and the lifting block is provided with a second protrusion on a side close to the second limiting member, and the second protrusion is movably arranged in the second groove; the third limiting member is provided with a third groove along the vertical direction, and the lifting block is provided with a third protrusion on a side close to the third limiting member, and the third protrusion is movably arranged in the third groove.

[0014] In one embodiment, an abutment portion is provided at one end of the stretching member close to the first limiting member, and the abutment portion is used to abut against the first limiting member.

[0015] In one of the embodiments, a horizontal cross-sectional shape of the support member is consistent with a bottom surface shape of the magnetic core.

[0016] In one of the embodiments, the driving unit is a driving cylinder, and the driving cylinder includes an oil inlet and an oil outlet, and the oil inlet and the oil outlet are connected to the oil supply mechanism of the equipment.

[0017] In one of the embodiments, the lifting assembly further includes a connecting member, and the driving unit is connected to the stretching member via the connecting member.

[0018] In one of the embodiments, the lifting assembly further includes a pad, and the driving unit is connected to the first fixed template and the second fixed template via the pad.

[0019] The above-mentioned injection mold is provided with a movable mold insert on the movable mold plate, and a fixed mold insert on the fixed mold plate. When the mold is closed, the movable mold mechanism and the fixed mold mechanism are closed, and a molding station is formed inside the movable mold insert and the fixed mold insert. The plastic raw material is injected into the gap of the molding station to be processed into a product. The plastic and the magnetic core can also be combined to form a product by placing a magnetic core in the molding station. When the upper and lower surfaces of the magnetic core need to abut the movable mold insert and the fixed mold insert, a lifting component is provided in the fixed mold mechanism, and the position of the magnetic core in the vertical direction can be adaptively adjusted according to the thickness of the magnetic core, so that the movable mold insert and the fixed mold insert are both abutted against the magnetic core, so that they are not affected by the large tolerance of the magnetic core thickness, and the quality problem or the scrapping of the magnetic core is avoided, which has the advantages of improving production quality and reducing processing costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] FIG1 is a schematic structural diagram of an injection mold according to an embodiment of the present application.

[0021] FIG. 2 is a cross-sectional view of the injection mold described in an embodiment of the present application.

[0022] FIG. 3 is a schematic structural diagram of the lifting assembly of the injection mold described in an embodiment of the present application.

[0023] FIG. 4 is a top view of the lifting assembly of the injection mold described in an embodiment of the present application.

[0024] Reference numerals: 10, magnetic core;

[0025] 100, fixed mold mechanism; 110, first fixed mold plate; 120, second fixed mold plate; 200A, first accommodating cavity;

[0026] 200, fixed mold insert; 100A, second accommodating cavity; 210, support block;

[0027] 300, lifting assembly; 310, driving unit; 320, connecting member; 330, stretching member; 331, first inclined surface; 332, abutting member; 340, lifting block; 341, second inclined surface; 342, first protrusion; 343, second protrusion; 344, third protrusion; 350, first limiting member; 350A, first groove; 360, second limiting member; 360A, second groove; 370, third limiting member; 370A, third groove; 380, pad. DETAILED DESCRIPTION

[0028] In order to make the above-mentioned purposes, features and advantages of the present application more obvious and easy to understand, the specific implementation methods of the present application are described in detail below in conjunction with the accompanying drawings. In the following description, many specific details are set forth to facilitate a full understanding of the present application. However, the present application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without violating the connotation of the present application, so the present application is not limited by the specific embodiments disclosed below.

[0029] In the description of the present application, it should be understood that if the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. appear, the orientation or position relationship indicated by these terms is based on the orientation or position relationship shown in the accompanying drawings, which is only for the convenience of describing the present application and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present application.

[0030] In addition, if the terms "first" or "second" appear, these terms are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of the features. In the description of this application, if the term "plurality" appears, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0031] In this application, unless otherwise clearly specified and limited, if the terms "installed", "connected", "connected", "fixed" and the like appear, these terms should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integrated connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to the specific circumstances.

[0032] In the present application, unless otherwise clearly specified and limited, if there is a description that a first feature is "above" or "below" a second feature, etc., or similar descriptions appear, it may mean that the first and second features are in direct contact, or that the first and second features are in indirect contact through an intermediate medium. Moreover, the first feature being "above", "above" and "above" the second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. The first feature being "below", "below" and "below" the second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0033] It should be noted that if an element is referred to as being "fixed to" or "disposed on" another element, it may be directly on the other element or there may be a central element. If an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. If any, the terms "vertical", "horizontal", "upper", "lower", "left", "right" and similar expressions used in this application are for illustrative purposes only and do not represent the only implementation method.

[0034] Referring to FIG. 1 and FIG. 2 , FIG. 1 shows a schematic diagram of the structure of an injection mold in an embodiment of the present application, and FIG. 2 shows a cross-sectional view of an injection mold in an embodiment of the present application. The injection mold provided in an embodiment of the present application includes a movable mold mechanism, a fixed mold mechanism 100, a fixed mold insert 200, and a lifting assembly 300. The movable mold mechanism and the fixed mold mechanism 100 are close to or away from each other. The movable mold mechanism includes a movable mold plate, and the fixed mold mechanism 100 includes a first fixed mold plate 110 and a second fixed mold plate 120. The first fixed mold plate 110 is connected to the second fixed mold plate 120. The movable mold insert is arranged on the movable mold plate, and the fixed mold insert 200 is arranged on the first fixed mold plate 110. The fixed mold insert 200 is arranged opposite to the movable mold insert, and the gap between the fixed mold insert 200 and the movable mold plate is a molding station, and the molding station is used to place the magnetic core 10. The lifting assembly 300 is arranged on the fixed mold mechanism 100, and the lifting assembly 300 is used to push the magnetic core 10 to abut against the movable mold insert.

[0035] The injection mold described in the embodiment of the present application is provided with a movable mold insert on the movable mold plate, and a fixed mold insert 200 is provided on the fixed mold plate 110. When the mold is closed, the movable mold mechanism and the fixed mold mechanism 100 are closed, and a molding station is formed inside the movable mold insert and the fixed mold insert 200. Plastic raw materials are injected into the gap of the molding station to be processed into products. The magnetic core 10 can also be placed in the molding station to combine the plastic and the magnetic core to form a product.

[0036] The injection mold described in the embodiment of the present application, when the upper and lower surfaces of the magnetic core 10 need to abut against the movable mold insert and the fixed mold insert 200, by setting a lifting assembly 300 in the fixed mold mechanism 100, the vertical position of the magnetic core 10 can be adaptively adjusted according to the thickness of the magnetic core 10, so that the movable mold insert and the fixed mold insert 200 are both abutted against the magnetic core 10, thereby not being affected by the large thickness tolerance of the magnetic core 10, avoiding the situation where the thickness of the magnetic core 10 is less than the standard value, resulting in the appearance of surface bumps, or the thickness of the magnetic core 10 is greater than the standard value, resulting in the inability to close the mold and the magnetic core 10 being scrapped, which has the advantages of improving production quality and reducing processing costs.

[0037] In an optional embodiment, as shown in FIG. 2 , a first accommodating cavity 200A is provided between the first fixed mold plate 110 and the fixed mold insert 200. The first accommodating cavity 200A penetrates the surface of the fixed mold insert 200. The fixed mold insert 200 is provided with a support block 210. The support block 210 is movably provided in the first accommodating cavity 200A in the vertical direction, and the magnetic core 10 is placed on the support block 210. By providing a movable support member 210 in the fixed mold insert 200 at the bottom of the magnetic core 10, the support member 210 can be lifted and lowered in the first accommodating cavity 200A. When the magnetic core 10 of different thicknesses needs to be adjusted, the lifting and lowering adjustment can be conveniently performed to abut the magnetic core 10. In a specific embodiment, if the bottom surface of the magnetic core 10 does not need to be injection molded, the horizontal cross-sectional shape of the support block 210 is set to be consistent with the bottom surface shape of the magnetic core 10, so that the support block 210 completely abuts the bottom of the magnetic core 10.

[0038] Further, as shown in FIG2 , a second accommodating cavity 100A is provided between the first fixed die plate 110 and the second fixed die plate 120, the first accommodating cavity 200A is communicated with the second accommodating cavity 100A, the lifting assembly 300 is provided in the second accommodating cavity 100A, the lifting assembly 300 is connected to the support block 210, and the lifting assembly 300 drives the support block 210 to move in the vertical direction. By providing the lifting assembly 300 in the lower fixed die mechanism 100, the lifting assembly 300 drives the support block 210 to move in the vertical direction in the first accommodating cavity 200A, so that the support block 210 abuts against the magnetic core 10.

[0039] As shown in Figure 3, Figure 3 shows a structural schematic diagram of the lifting assembly 300 of the injection mold in an embodiment of the present application. In some embodiments, the lifting assembly 300 includes a driving unit 310, a stretching member 330 and a lifting block 340. The driving unit 310 is arranged on one side of the fixed mold mechanism 100, the stretching member 330 is movably arranged in the second accommodating cavity 100A, one end of the stretching member 330 is connected to the output end of the driving unit 310, the lifting block 340 is movably arranged on the stretching member 330, the support block 210 is arranged on the lifting block 340, the abutting surface between the stretching member 330 and the lifting block 340 is set as a first inclined surface 331, the abutting surface between the lifting block 340 and the stretching member 330 is set as a second inclined surface 341, and the driving unit 310 drives the stretching member 330 to move in the horizontal direction. The driving unit 310 is set to drive the stretching member 330 to move in the horizontal direction. Since the connecting surface between the stretching member 330 and the lifting block 340 is an inclined surface, when the two slide relative to each other, the horizontal movement of the stretching member 330 will be converted into the vertical movement of the lifting block 340, and then the lifting block 340 drives the support block 210 to perform vertical lifting movement, so as to achieve the purpose of abutting the magnetic core 10, avoid the situation where the thickness of the magnetic core 10 is less than the standard value, resulting in the appearance of surface bumps, or the thickness of the magnetic core 10 is greater than the standard value, resulting in the inability to close the mold and the magnetic core 10 being scrapped, which has the advantages of improving production quality and reducing processing costs.

[0040] In other embodiments, the lifting assembly 300 may also be a driving device such as a driving motor, a driving cylinder, or a driving cylinder that directly drives the support block 210 to perform lifting motion.

[0041] 3, the lifting assembly 300 further includes a connecting member 320, and the driving unit 310 is connected to the stretching member 330 via the connecting member 320. By providing the connecting member 320, the stretching member 330 can be conveniently connected to the driving unit 310, which is convenient for the staff to perform installation or maintenance operations.

[0042] In an optional embodiment, as shown in FIG. 3 and FIG. 4 , the lifting assembly 300 further includes a first stopper 350, a second stopper 360 and a third stopper 370. The first stopper 350 is disposed at one end of the lifting block 340 away from the driving unit 310. The lifting block 340 is movably connected to the first stopper 350. The second stopper 360 and the third stopper 370 are respectively disposed on both sides of the lifting block 340, and the lifting block 340 is movably connected to the second stopper 360 and the third stopper 370. The first stopper 350, the second stopper 360 and the third stopper 370 are connected to the inner wall of the second accommodating chamber 100A to fix them. By respectively arranging the first stopper 350, the second stopper 360 and the third stopper 370 on three sides of the lifting block 340, the lifting block 340 is limited to lifting motion, and the lifting motion of the lifting block 340 is realized under the push of the stretching member 330. The first limiting member 350 , the second limiting member 360 and the third limiting member 370 can also reduce the friction between the lifting block 340 and the inner wall of the second accommodating cavity 100A, thereby improving the stability of the mold.

[0043] In an optional embodiment, as shown in Figure 4, the first limiting member 350 is provided with a first groove 350A in the vertical direction, and the lifting block 340 is provided with a first protrusion 342 at the end close to the first limiting member 350, and the first protrusion 342 is movably arranged in the first groove 350A; the second limiting member 360 is provided with a second groove 360A in the vertical direction, and the lifting block 340 is provided with a second protrusion 343 on a side close to the second limiting member 360, and the second protrusion 343 is movably arranged in the second groove 360A; the third limiting member 370 is provided with a third groove 370A in the vertical direction, and the lifting block 340 is provided with a third protrusion 344 on a side close to the third limiting member 370, and the third protrusion 344 is movably arranged in the third groove 370A. The lifting block 340 is provided with a first protrusion 342, a second protrusion 343 and a third protrusion 344 at positions corresponding to the first limiting member 350, the second limiting member 360 and the third limiting member 370, so that the first protrusion 342, the second protrusion 343 and the third protrusion 344 can slide vertically in the first groove 350A, the second groove 360A and the third groove 370A of the first limiting member 350, the second limiting member 360 and the third limiting member 370, respectively, so as to limit the vertical movement direction of the lifting block 340 and improve the sliding stability.

[0044] In an optional embodiment, as shown in FIG2 , an end of the stretching member 330 close to the first stopper 350 is provided with an abutment portion 332, and the abutment portion 332 is used to abut the first stopper 350. By providing the abutment portion at the top of the stretching member 330, the sliding range of the stretching member 330 is limited, and the lifting range of the lifting block 340 and the support block 210 is further limited, so as to avoid damage to the mold caused by excessive lifting.

[0045] In an optional embodiment, the driving unit 310 is a driving oil cylinder, which includes an oil inlet and an oil outlet, and the oil inlet and the oil outlet are connected to the oil supply mechanism of the device. By setting the driving unit 310 as a driving oil cylinder, oil supply can be conveniently performed in the injection molding device, and the driving oil cylinder has a stable use effect, good pressure bearing capacity, and has the advantage of good use effect.

[0046] In an optional embodiment, as shown in FIG2 , the lifting assembly 300 further includes a pad 380, and the driving unit 310 is connected to the first fixed mold plate 110 and the second fixed mold plate 120 via the pad 380. The driving unit 310 is connected to the fixed mold mechanism 100 via the pad 380, which can reduce the influence of the driving unit 310 on the mold to a certain extent, such as reducing the vibration transmitted to the mold and improving the stability of the mold.

[0047] The injection mold described in the embodiment of the present application has the following beneficial effects:

[0048] 1. By arranging the lifting assembly 300 in the fixed mold mechanism 100, the position of the magnetic core 10 in the vertical direction can be adaptively adjusted according to the thickness of the magnetic core 10, so that the movable mold insert and the fixed mold insert 200 are both in contact with the magnetic core 10, thereby not being affected by the large thickness tolerance of the magnetic core 10, avoiding the situation where the thickness of the magnetic core 10 is less than the standard value, resulting in the appearance of surface burrs, or the thickness of the magnetic core 10 is greater than the standard value, resulting in the inability to close the mold and the scrapping of the magnetic core 10, which has the advantages of improving production quality and reducing processing costs.

[0049] 2. By respectively providing a first stopper 350, a second stopper 360 and a third stopper 370 on three sides of the lifting block 340, the lifting block 340 is limited to lifting motion, and the lifting block 340 is lifted and lowered under the push of the stretching member 330. The first stopper 350, the second stopper 360 and the third stopper 370 can also reduce the friction between the lifting block 340 and the inner wall of the second accommodating cavity 100A, thereby improving the stability of the mold.

[0050] The technical features of the above-described embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0051] The above-described embodiments only express several implementation methods of the present application, and the descriptions thereof are relatively specific and detailed, but they cannot be construed as limiting the scope of the patent application. It should be pointed out that, for a person of ordinary skill in the art, several variations and improvements can be made without departing from the concept of the present application, and these all belong to the protection scope of the present application. Therefore, the protection scope of the patent application shall be subject to the attached claims.

Claims

1. An injection mold, characterized in that: include: A movable mold mechanism and a fixed mold mechanism (100), the movable mold mechanism and the fixed mold mechanism (100) being close to or far away from each other, the movable mold mechanism comprising a movable mold plate, and the fixed mold mechanism (100) comprising a first fixed mold plate (110); A movable mold insert and a fixed mold insert (200), the movable mold insert being arranged on the movable mold plate, the fixed mold insert (200) being arranged on the first fixed mold plate (110), the fixed mold insert (200) being arranged opposite to the movable mold insert, and a gap between the fixed mold insert (200) and the movable mold insert being a molding station, the molding station being used for placing a magnetic core (10); A lifting component (300) is arranged on the fixed mold mechanism (100), and the lifting component (300) is used to push the magnetic core (10) to abut against the movable mold insert.

2. The injection mold according to claim 1, characterized in that: A first accommodating cavity (200A) is provided between the first fixed mold plate (110) and the fixed mold insert (200), the first accommodating cavity (200A) penetrating the surface of the fixed mold insert (200), the fixed mold insert (200) being provided with a supporting block (210), the supporting block (210) being movably arranged in the first accommodating cavity (200A) along the vertical direction, and the magnetic core (10) being placed on the supporting block (210); The fixed mold mechanism (100) further comprises a second fixed mold plate (120), the first fixed mold plate (110) is connected to the second fixed mold plate (120), a second accommodating cavity (100A) is provided between the first fixed mold plate (110) and the second fixed mold plate (120), the first accommodating cavity (200A) is communicated with the second accommodating cavity (100A), the lifting component (300) is provided in the second accommodating cavity (100A), the lifting component (300) is connected to the supporting block (210), and the lifting component (300) drives the supporting block (210) to move in a vertical direction.

3. The injection mold according to claim 2, characterized in that: The lifting assembly (300) comprises a driving unit (310), a stretching member (330) and a lifting block (340); the driving unit (310) is arranged at one side of the fixed mold mechanism (100); the stretching member (330) is movably arranged in the second accommodating cavity (100A); one end of the stretching member (330) is connected to the output end of the driving unit (310); the lifting block (340) is movably arranged on the stretching member (330); the supporting block (210) is arranged on the lifting block (340); the contact surface between the stretching member (330) and the lifting block (340) is arranged as a first inclined surface (331); the contact surface between the lifting block (340) and the stretching member (330) is arranged as a second inclined surface (341); and the driving unit (310) drives the stretching member (330) to move in a horizontal direction.

4. The injection mold according to claim 3, characterized in that: The lifting assembly (300) further comprises a first limiting member (350), a second limiting member (360) and a third limiting member (370); the first limiting member (350) is arranged at an end of the lifting block (340) away from the driving unit (310); the lifting block (340) is movably connected to the first limiting member (350); the second limiting member (360) and the third limiting member (370) are respectively arranged on two sides of the lifting block (340); and the lifting block (340) is movably connected to the second limiting member (360) and the third limiting member (370).

5. The injection mold according to claim 4, characterized in that: The first limiting member (350) is provided with a first groove (350A) along the vertical direction, and the lifting block (340) is provided with a first protrusion (342) at an end portion close to the first limiting member (350), and the first protrusion (342) is movably arranged in the first groove (350A); the second limiting member (360) is provided with a second groove (360A) along the vertical direction, and the lifting block (340) is provided with a second protrusion (343) at a side close to the second limiting member (360), and the second protrusion (343) is movably arranged in the second groove (360A); the third limiting member (370) is provided with a third groove (370A) along the vertical direction, and the lifting block (340) is provided with a third protrusion (344) at a side close to the third limiting member (370), and the third protrusion (344) is movably arranged in the third groove (370A).

6. The injection mold according to claim 4, characterized in that: An abutment portion (332) is provided at one end of the stretching member (330) close to the first limiting member (350), and the abutment portion (332) is used to abut against the first limiting member (350).

7. The injection mold according to claim 2, characterized in that: The horizontal cross-sectional shape of the support block (210) is consistent with the bottom surface shape of the magnetic core (10).

8. The injection mold according to claim 3, characterized in that: The driving unit (310) is a driving oil cylinder, the driving oil cylinder comprising an oil inlet and an oil outlet, the oil inlet and the oil outlet being connected to an oil supply mechanism of the equipment.

9. The injection mold according to claim 3, characterized in that: The lifting assembly (300) further comprises a connecting member (320), and the driving unit (310) is connected to the stretching member (330) via the connecting member (320).

10. The injection mold according to claim 3, characterized in that: The lifting assembly (300) further comprises a backing plate (380), and the driving unit (310) is connected to the first fixed die plate (110) and the second fixed die plate (120) via the backing plate (380).

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