mold device

Abstract

The application discloses a mold device, comprising a front mold assembly, a rear mold assembly, a fixed plate and a ejector plate assembly arranged in sequence; one side of the rear mold assembly facing the front mold assembly is a forming surface, the rear mold assembly is provided with a containing cavity, the containing cavity is provided with a side core assembly, the side core assembly is located on the side of the forming surface and the product away from the front mold assembly; the fixed plate is provided with a first guide, one end of the first guide away from the fixed plate is inserted into the containing cavity through an opening; the ejector plate assembly is provided with an ejector rod on the side facing the rear mold assembly, the ejector rod is inserted into the fixed plate and can push the rear mold assembly away from the fixed plate under the action of external force; wherein the first guide and the side core assembly are provided with a first guide structure, so that when the ejector rod drives the rear mold assembly away from the fixed plate, the side core assembly can move along the direction of the first guide structure to realize core pulling. The mold device can reduce the situation that the side core assembly is stuck due to material running, thereby affecting use.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of molds, in particular to a mold device. BACKGROUND

[0002] In the related art, the side core in the mold is usually arranged in the rear mold together with the sliding block, the side of the rear mold facing the front mold is a forming surface, the sliding block is exposed on the forming surface after the mold is opened, so that the inclined guide column located in the front mold can guide the sliding block when the mold is opened, the sliding block moves outward, thereby driving the side core to move outward to realize core pulling. However, since the sliding block in this mold structure is located on the forming surface, once the material runs on the forming surface, it is easy to run into the gap between the sliding blocks, thereby causing the sliding block to be stuck, which affects the use. Moreover, the sliding block on the forming surface is easy to accumulate dust and impurities after the mold is opened, thereby affecting the production and use. SUMMARY

[0003] The present application aims to at least solve one of the technical problems existing in the prior art. To this end, the present application provides a mold device which can reduce the situation that the side core assembly is stuck due to material running, thereby improving the effectiveness of the mold use.

[0004] The mold device according to the first aspect of the present application comprises a front mold assembly, a rear mold assembly, a fixed plate and a ejector plate assembly; the rear mold assembly is arranged opposite to the front mold assembly, and a cavity for forming a product is formed between the rear mold assembly and the front mold assembly, the side of the rear mold assembly facing the front mold assembly is a forming surface, the rear mold assembly is provided with a containing cavity, the side of the containing cavity away from the forming surface is provided with an opening, the containing cavity is communicated with the cavity, and the containing cavity is provided with a side core assembly, the side core assembly is located on the side of the forming surface and the product away from the front mold assembly; the fixed plate is arranged on the side of the rear mold assembly away from the front mold assembly, the fixed plate is fixedly provided with a first guide piece, and the end of the first guide piece away from the fixed plate is inserted into the containing cavity through the opening; the ejector plate assembly is arranged on the side of the fixed plate away from the rear mold assembly, and the side of the ejector plate assembly facing the rear mold assembly is provided with an ejector rod, the ejector rod is arranged through the fixed plate and can drive the rear mold assembly to move away from the fixed plate under the action of an external force; wherein the first guide piece and the side core assembly are provided with a first guide structure, so that when the ejector rod drives the rear mold assembly to move away from the fixed plate, the side core assembly can move along the direction of the first guide structure under the driving of the rear mold assembly to realize core pulling, and the included angle between the direction of the first guide structure and the opening and closing direction is an acute angle.

[0005] The mold device has at least the following beneficial effects: the mold device comprises a front mold assembly, a rear mold assembly, a fixed plate and a ejector plate assembly arranged in sequence, a cavity for forming a product is arranged between the front mold assembly and the rear mold assembly, one side of the rear mold assembly provided with the cavity is a forming surface, a side core assembly is arranged on the side of the forming surface and the product away from the front mold assembly and located in a receiving cavity of the rear mold assembly, that is, the side core assembly is not exposed between the front mold assembly, the rear mold assembly and the product after the mold is opened, and when the ejector plate assembly moves to the side close to the fixed plate, a ejector rod fixed to the ejector plate assembly can pass through the fixed plate and push the rear mold assembly away from the fixed plate, the fixed plate is provided with a first guide arranged in the receiving cavity, and a first guide structure is arranged between the side core assembly and the first guide, so that when the rear mold assembly drives the side core assembly to move away from the fixed plate under the pushing of the ejector rod, the side core assembly can move along the direction of the first guide structure, the included angle between the guide direction of the first guide structure and the opening and closing direction is an acute angle, so that the side core assembly can complete the action of core pulling and demolding; therefore, the core pulling structure of the mold device is hidden on the side of the forming surface away from the front mold assembly, thereby avoiding the disadvantage that the side core assembly arranged on the side of the rear mold assembly close to the front mold assembly in the original design is easy to accumulate impurities, reducing the situation that the side core assembly is stuck due to material running to the forming surface, improving the effectiveness of the mold use, and being suitable for core pulling structures of various angles.

[0006] According to some embodiments of the present application, the side core assembly comprises a slider and a side core, the first guide structure is arranged between the slider and the first guide, and the side core is fixed to the slider and used for forming the shape of the side wall of the product.

[0007] According to some embodiments of the present application, the first guide structure comprises a T-shaped groove arranged on the slider and a T-shaped part arranged on the end of the first guide away from the fixed plate, and the T-shaped part is matched with the T-shaped groove.

[0008] According to some embodiments of the present application, the ejector plate assembly is fixed with an ejector pin, the ejector pin is arranged in the fixed plate and the rear mold assembly to eject the product, the ejector plate assembly is further provided with a avoiding position, so that when the ejector plate assembly continuously moves to a certain distance close to the fixed plate, the ejector rod can fall into the avoiding position to stop pushing the rear mold assembly, and the ejector pin can eject the product out of the rear mold assembly.

[0009] According to some embodiments of the present application, the ejector plate assembly comprises an ejector plate and a support table, the support table is arranged on the side of the ejector plate close to the fixed plate, the ejector pin is fixed on the ejector plate, the ejector rod is arranged on the side of the support table facing the fixed plate, the second guide is fixed on the side of the fixed plate facing the ejector plate, and the second guide structure is arranged between the second guide and the support table, so that when the ejector plate approaches the fixed plate, the support table can be driven by the ejector plate to move along the direction of the second guide structure, and the ejector rod falls into the avoiding position, and the angle between the direction of the second guide structure and the opening and closing direction is an acute angle.

[0010] According to some embodiments of the present application, the second guide structure comprises a guide surface arranged on the second guide and an abutting surface arranged on the support table, when the ejector plate approaches the fixed plate, the abutting surface can abut against the guide surface, the support table can move along the vertical opening and closing direction between the first position and the second position under the guidance of the guide surface relative to the ejector plate, when the support table is located at the first position, one end of the ejector rod abuts against the support surface of the support table, and the other end can push the rear mold assembly to move, when the support table is located at the second position, one end of the ejector rod falls into the avoiding position and stops pushing the rear mold assembly.

[0011] According to some embodiments of the present application, the avoiding position is a containing groove arranged on the side of the support table facing the fixed plate.

[0012] According to some embodiments of the present application, the ejector plate assembly further comprises a third guide, the third guide is arranged on the side of the ejector plate facing the fixed plate, and is provided with a sliding groove, the direction of the sliding groove is perpendicular to the opening and closing direction, and the support table is slidingly connected to the third guide along the sliding groove.

[0013] According to some embodiments of the present application, the ejector plate assembly further comprises a reset member, the reset member is arranged on the side of the support table away from the abutting surface, and is used for restoring the support table from the second position to the first position.

[0014] According to some embodiments of the present application, one end of the ejector rod away from the ejector plate is provided with an extension part extending along the radial direction of the ejector rod, and the extension part is limited to the side of the fixed plate away from the ejector plate, so as to limit the distance of the ejector rod moving to the side close to the ejector plate.

[0015] Additional aspects and advantages of the present application will be made apparent from the following description. BRIEF DESCRIPTION OF DRAWINGS

[0016] The present application will be further described below in conjunction with the drawings and embodiments, wherein:

[0017] Figure 1 It is a schematic diagram of the overall structure of one embodiment of the mold device of the present application;

[0018] Figure 2 It isFigure 1 The mold assembly shown in the diagram conceals the structure behind the front mold assembly;

[0019] Figure 3 for Figure 1 The diagram shows the mold assembly, with the front mold assembly and rear mold core hidden.

[0020] Figure 4 for Figure 1 A schematic diagram of the product, side core assembly, and first guide member in the mold assembly shown;

[0021] Figure 5 for Figure 1 The mold assembly shown is a structural diagram that hides the front mold assembly and the rear mold assembly;

[0022] Figure 6 for Figure 5 A magnified view of a portion at point A shown in the image;

[0023] Figure 7 for Figure 1 The diagram shows the structure of the support platform, ejector rod, third guide member, and reset member in the mold device shown.

[0024] Figure label:

[0025] Front mold assembly 100; rear mold assembly 200; molding surface 201; side core assembly 202; slider 210; T-slot 211; side core 220; rear mold core 230; rear template 240; fixing plate 300; first guide 310; T-shaped part 311; second guide 320; guide surface 321; ejector plate assembly 400; ejector rod 410; extension part 411; ejector pin 420; ejector plate 430; support platform 440; abutment surface 441; support surface 442; receiving groove 443; third guide 450; slide 451; reset part 460; product 500. Detailed Implementation

[0026] The embodiments of this application are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein 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 accompanying drawings are exemplary and are only used to explain this application, and should not be construed as limiting this application.

[0027] In the description of this application, it should be understood that the orientation descriptions, such as up, down, front, back, left, right, etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0028] In the description of the present application, the meaning of several is one or more, the meaning of multiple is two or more, greater than, less than, more than, etc. are understood as not including the number, above, below, within, etc. are understood as including the number. If it is described as first, second, it is only used for the purpose of distinguishing technical features, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of indicated technical features or the order of the indicated technical features.

[0029] In the description of the present application, unless otherwise explicitly limited, the words such as setting, installing, connecting, etc. should be broadly understood, and those skilled in the art can reasonably determine the specific meaning of the above words in the present application in combination with the specific content of the technical solution.

[0030] In the description of the present application, the description of the terms "one embodiment", "some embodiments", "exemplary embodiment", "example", "specific example", or "some examples" means that the specific features, structures, materials or characteristics described in combination with the embodiment or example are included in at least one embodiment or example of the present application. In the present specification, the exemplary description of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0031] The following refers to Figures 1 to 7 The mold device of the embodiment of the present application is described.

[0032] As Figures 1 to 4As shown, the mold device according to the embodiment of the present application comprises a front mold assembly 100, a rear mold assembly 200, a fixing plate and a ejector plate assembly 400; the rear mold assembly 200 is oppositely arranged with the front mold assembly 100, and a cavity for forming a product 500 is formed between the rear mold assembly 200 and the front mold assembly 100, the side of the rear mold assembly 200 facing the front mold assembly 100 is a forming surface 201, the rear mold assembly 200 is internally provided with a receiving cavity, the side of the receiving cavity away from the forming surface 201 is provided with an opening, the receiving cavity is communicated with the cavity, the receiving cavity is internally provided with a side core assembly 202, the side core assembly 202 is located on the side of the product 500 away from the front mold assembly 100 and the forming surface 201; the fixing plate 300 is arranged on the side of the rear mold assembly 200 away from the front mold assembly 100, the fixing plate 300 is fixedly provided with a first guide 310, one end of the first guide 310 away from the fixing plate 300 is inserted into the receiving cavity through the opening; the ejector plate assembly 400 is arranged on the side of the fixing plate 300 away from the rear mold assembly 200, and the side of the ejector plate assembly 400 facing the rear mold assembly 200 is provided with an ejector rod 410, the ejector rod 410 is arranged through the fixing plate 300 and can push the rear mold assembly 200 away from the fixing plate 300 under the action of an external force; wherein the first guide 310 and the side core assembly 202 are provided with a first guide structure, so that when the ejector rod 410 drives the rear mold assembly 200 to move away from the fixing plate 300, the side core assembly 202 can be driven by the rear mold assembly 200 to move along the direction of the first guide structure to realize core pulling, and the included angle between the direction of the first guide structure and the opening and closing direction is an acute angle.

[0033] It can be understood that the mold device comprises the front mold assembly 100, the rear mold assembly 200, the fixed plate 300 and the ejector plate assembly 400 arranged in sequence, the mold cavity for forming the product 500 is arranged between the front mold assembly 100 and the rear mold assembly 200, one side of the rear mold assembly 200 provided with the mold cavity is the forming surface 201, the side core assembly 202 is arranged on the side of the forming surface 201 and the product 500 away from the front mold assembly 100 and located in the accommodating cavity of the rear mold assembly 200, that is, the side core assembly 202 will not be exposed between the front mold assembly 100, the rear mold assembly 200 and the product 500 after the mold is opened, and when the ejector plate assembly 400 moves to the side close to the fixed plate 300, the ejector rod 410 fixed to the ejector plate assembly 400 can pass through the fixed plate 300 and push the rear mold assembly 200 away from the fixed plate 300, since the fixed plate 300 is provided with the first guide 310 inserted into the accommodating cavity, and the first guide structure is arranged between the side core assembly 202 and the first guide 310, so that when the rear mold assembly 200 drives the side core assembly 202 to move away from the fixed plate 300 under the pushing of the ejector rod 410, the side core assembly 202 can move along the direction of the first guide structure, the included angle between the guide direction of the first guide structure and the opening and closing direction is an acute angle, so that the side core assembly 202 can complete the action of core pulling and demolding; therefore, the core pulling structure of the mold device is hidden on the side of the forming surface 201 away from the front mold assembly 100, so as to avoid the disadvantage of easy accumulation of impurities caused by the arrangement of the side core assembly 202 on the side of the rear mold assembly 200 close to the front mold assembly 100 in the original design, and reduce the occurrence of the situation that the side core assembly 202 is stuck due to the material running to the forming surface 201, improve the effectiveness of the mold use, and be suitable for various angle core pulling structures.

[0034] Wherein, the accommodating cavity and the mold cavity are communicated, that is, the side core assembly 202 arranged in the accommodating cavity can form the side wall of the product 500 formed in the mold cavity.

[0035] It can be understood that the side core assembly 202 comprises the slider 210 and the side core 220, the first guide structure is arranged between the slider 210 and the first guide 310, the side core 220 is fixed with the slider 210 and is used for forming the shape of the side wall of the product 500. For example, as shown in Figure 4 In this embodiment, the side core assembly 202 comprises the slider 210 and the side core 220, the side core 220 is fixed with the slider 210 and is used for forming the shape of the side wall of the product 500, and the first guide structure is arranged between the slider 210 and the first guide 310, so that the slider 210 can move along the direction of the first guide structure when it is driven by the rear mold assembly 200 to move away from the fixed plate 300, and then the side core 220 is driven by the slider 210 to pull the core and demold.

[0036] It can be understood that the first guide structure comprises the T-shaped slot 211 arranged on the slider 210 and the T-shaped part 311 arranged on the first guide 310 away from the fixed plate 300, and the T-shaped part 311 is matched with the T-shaped slot 211. For example, as shown in Figure 4 In the embodiment, the first guide structure comprises the matched T-shaped slot 211 and T-shaped part 311, the T-shaped slot 211 is arranged on the slider 210, the T-shaped part 311 is part of the first guide 310, and the angle between the T-shaped slot 211 and the opening and closing direction is an acute angle, so that the slider 210 moves along the extension direction of the T-shaped slot 211 under the action of the first guide 310.

[0037] It should be understood that the first guide structure can also be the T-shaped slot 211 arranged on the first guide 310 and the T-shaped part 311 arranged on the slider 210; it should be understood that in addition to the structure of the T-shaped slot 211 and the T-shaped part 311 arranged between the slider 210 and the first guide 310 as described above, other structure forms can also be arranged, for example, the first guide 310 is arranged as an inclined guide column, and the slider 210 is correspondingly arranged as an inclined guide slot.

[0038] It can be understood that the ejector plate assembly 400 is fixedly provided with the ejector pin 420, the ejector pin 420 is arranged through the fixed plate 300 and the rear mold assembly 200, and is used for ejecting the product 500. The ejector plate assembly 400 is also provided with a avoiding position, so that when the ejector plate assembly 400 continuously approaches the fixed plate 300 by a certain distance, the ejector rod 410 can fall into the avoiding position to stop pushing the rear mold assembly 200, so that the ejector pin 420 can eject the product 500 from the rear mold assembly 200. For example, as shown in Figure 5 In the embodiment, the ejector plate assembly 400 is provided with the avoiding position and the ejector pin 420 respectively, and the ejector pin 420 continuously pushes the product 500 away from the fixed plate 300 in the process of the ejector plate assembly 400 approaching the fixed plate 300. When the ejector plate assembly 400 approaches the fixed plate 300 by a certain distance and the ejector rod 410 pushes the rear mold assembly 200 to realize core pulling, the ejector rod 410 falls into the avoiding position, so as to temporarily lose the pushing force on the rear mold assembly 200, so that the rear mold assembly 200 remains stationary in the subsequent step, and the ejector pin 420 always pushes the product 500 to move in the process of the ejector plate 430 continuously approaching the fixed plate 300, and can realize the ejection of the product 500 after the rear mold assembly 200 remains stationary.

[0039] It can be understood that the ejector plate assembly 400 comprises the ejector plate 430 and the support table 440, the support table 440 is arranged on the side of the ejector plate 430 close to the fixed plate 300, the ejector pin 420 is fixedly arranged on the ejector plate 430, the ejector rod 410 is arranged on the side of the support table 440 close to the fixed plate 300, the side of the fixed plate 300 close to the ejector plate 430 is fixedly arranged with the second guide 320, and the second guide structure is arranged between the second guide 320 and the support table 440, so that when the ejector plate 430 approaches the fixed plate 300, the support table 440 can be driven by the ejector plate 430 to move along the direction of the second guide structure, and the ejector rod 410 falls into the avoiding position, and the angle between the direction of the second guide structure and the opening and closing direction is an acute angle. For example, as shown in Figure 6 the ejector plate assembly 400 comprises the ejector plate 430 and the support table 440, the support table 440 is arranged on the side of the ejector plate 430 close to the fixed plate 300, the ejector rod 410 is arranged on the side of the support table 440 close to the fixed plate 300, the ejector pin 420 is fixedly arranged on the side of the ejector plate 430 close to the fixed plate 300, and the support table 440 can abut against the second guide 320 arranged on the side of the fixed plate 300 close to the ejector plate 430 during the process of being driven by the ejector plate 430 to approach the fixed plate 300, and the second guide structure is arranged between the support table 440 and the second guide 320, so that the support table 440 can move along the direction of the second guide structure, and the support table 440 moves relative to the ejector plate 430 along the direction perpendicular to the opening and closing direction, the angle between the direction of the second guide structure and the opening and closing direction is an acute angle, so that the support table 440 moves, and the ejector rod 410 originally arranged on the side of the support table 440 close to the fixed plate 300 falls into the avoiding position, and the pushing of the ejector rod 410 to the rear mold assembly 200 is stopped, so that the ejector pin 420 can eject the product 500.

[0040] It can be understood that the second guide structure comprises the guide surface 321 arranged on the second guide 320 and the abutting surface 441 arranged on the support table 440, when the ejector plate 430 approaches the fixed plate 300, the abutting surface 441 can abut against the guide surface 321, and the support table 440 can be guided by the guide surface 321 to move relative to the ejector plate 430 along the direction perpendicular to the opening and closing direction between the first position and the second position, when the support table 440 is located at the first position, one end of the ejector rod 410 abuts against the support surface 442 of the support table 440, and the other end can push the rear mold assembly 200 to move, when the support table 440 is located at the second position, one end of the ejector rod 410 falls into the avoiding position, and the pushing of the rear mold assembly 200 is stopped. For example, as shown in Figure 6As shown, in the embodiment, the second guide structure includes the guide surface 321 provided on the second guide 320 and the abutting surface 441 provided on the support table 440. In the process of the ejector plate 430 approaching the fixed plate 300, the support table 440 can be moved from the first position to the second position relative to the ejector plate 430 under the driving of the ejector plate 430 and the guidance of the guide surface 321 of the second guide 320. When the support table 440 is at the first position, the support surface 442 of the support table 440 on the side facing the fixed plate 300 is abutted by the ejector rod 410, and the ejector rod 410 can push the rear mold assembly 200 to move. When the support table 440 is at the second position, the ejector rod 410 falls into the avoiding position, so as to suspend the pushing action on the rear mold assembly 200, thereby facilitating the ejector pin 420 to eject the product 500.

[0041] It can be understood that the avoiding position is the accommodating groove 443 provided on the side of the support table 440 facing the fixed plate 300. For example, as shown in Figure 6 As shown, in the embodiment, the avoiding position is the accommodating groove 443 provided on the side of the support table 440 facing the fixed plate 300. In this way, in the process of the support table 440 moving from the first position to the second position, the ejector rod 410 falls into the accommodating groove 443 from the abutting surface 441 of the support table 440, so as to suspend the pushing action on the rear mold assembly 200.

[0042] It can be understood that the ejector plate assembly 400 further includes a third guide 450. The third guide 450 is provided on the side of the ejector plate 430 facing the fixed plate 300, and is provided with a sliding groove 451. The direction of the sliding groove 451 is perpendicular to the mold opening and closing direction. The support table 440 is slidingly connected to the third guide 450 along the sliding groove 451. For example, as shown in Figures 6 to 7 As shown, in the embodiment, the ejector plate assembly 400 further includes a third guide 450. The support table 440 is slidingly connected to the third guide 450 through the sliding groove 451 of the third guide 450, so as to slide from the first position to the second position relative to the ejector plate 430.

[0043] It can be understood that the ejector plate assembly 400 further includes a reset member 460. The reset member 460 is provided on the side of the support table 440 away from the abutting surface 441, and is used to restore the support table 440 from the second position to the first position. For example, as shown in Figures 6 to 7 As shown, in the embodiment, the reset member 460 is provided on the side of the support table 440 away from the abutting surface 441. In the process of the ejector plate 430 approaching the fixed plate 300 and the support table 440 moving from the first position to the second position, the reset member 460 can be deformed by extrusion. In the process of the ejector plate 430 moving away from the fixed plate 300, the reset member 460 can provide a restoring force to restore the support table 440 from the second position to the first position.

[0044] It can be understood that the end of the ejector rod 410 away from the ejector plate 430 is provided with an extension 411 extending along the radial direction of the ejector rod 410, and the extension 411 is limited on the side of the fixed plate 300 away from the ejector plate 430, so as to limit the distance of the movement of the ejector rod 410 to the side close to the ejector plate 430. For example, as shown in Figure 7 In the embodiment, the end of the ejector rod 410 away from the ejector plate 430 is provided with the extension 411, so that after the ejector rod 410 falls into the avoiding position, the end of the ejector rod 410 away from the ejector plate 430 can be limited on the side of the fixed plate 300 away from the ejector plate 430, and during the process that the ejector plate 430 moves away from the fixed plate 300 and the support table 440 moves from the second position to the first position under the restoring force of the restoring member 460, the ejector rod 410 remains stationary until the support table 440 moves to the first position, and the support surface 442 of the support table 440 re-contacts the end of the ejector rod 410 away from the fixed plate 300, so as to facilitate the next core-pulling and ejecting action.

[0045] The above describes the embodiments of the present application in detail in combination with the drawings, but the present application is not limited to the above-described embodiments, and various changes can be made within the knowledge range of the ordinary skill in the art without departing from the purpose of the present application. In addition, the embodiments of the present application and the features in the embodiments can be combined with each other without conflict.

Claims

1. A mold apparatus characterized by, The utility model relates to a mould structure and a moulding method thereof, and the mould structure comprises: a front mould assembly (100); a rear mould assembly (200) arranged oppositely to the front mould assembly (100) and forming a cavity for a moulding product (500) with the front mould assembly (100), one side of the rear mould assembly (200) facing the front mould assembly (100) being a forming surface (201), the rear mould assembly (200) being internally provided with a containing cavity, one side of the containing cavity away from the forming surface (201) being provided with an opening, the containing cavity being communicated with the cavity, the containing cavity being internally provided with a side core assembly (202), the side core assembly (202) being located at one side of the forming surface (201) and the product (500) away from the front mould assembly (100); a fixing plate (300) arranged at one side of the rear mould assembly (200) away from the front mould assembly (100), the fixing plate (300) being fixedly provided with a first guide (310), one end of the first guide (310) away from the fixing plate (300) being inserted into the containing cavity through the opening; a ejector plate assembly (400) arranged at one side of the fixing plate (300) away from the rear mould assembly (200), one side of the ejector plate assembly (400) facing the rear mould assembly being provided with an ejector rod (410), the ejector rod (410) being penetrated through the fixing plate (300) and capable of driving the rear mould assembly (200) away from the fixing plate (300) under the action of an external force; wherein a first guide structure is arranged between the first guide (310) and the side core assembly (202) to enable the side core assembly (202) to move along the direction of the first guide structure under the driving of the rear mould assembly (200) when the ejector rod (410) drives the rear mould assembly (200) away from the fixing plate (300), so as to realize core pulling, the included angle between the direction of the first guide structure and the direction of mould opening and closing being an acute angle; the side core assembly (202) comprises a slider (210) and a side core (220), the first guide structure being arranged between the slider (210) and the first guide (310), the side core (220) being fixed with the slider (210) and used for forming the shape of a side wall of the product (500); the first guide structure comprises a T-shaped groove (211) arranged at the slider (210) and a T-shaped part (311) arranged at one end of the first guide (310) away from the fixing plate (300), the T-shaped part (311) being matched with the T-shaped groove (211); The ejector plate assembly (400) is fixed with an ejector pin (420) which is arranged through the fixed plate (300) and the back mold assembly (200) for ejecting the product (500), and the ejector plate assembly (400) is further provided with an avoiding position, so that when the ejector plate assembly (400) continuously approaches the fixed plate (300) by a certain distance, the ejector rod (410) can fall into the avoiding position to stop pushing the back mold assembly (200), so that the ejector pin (420) can eject the product (500) out of the back mold assembly (200); The ejector plate assembly (400) comprises an ejector plate (430) and a support table (440), the support table (440) is arranged on the side of the ejector plate (430) close to the fixed plate (300), the ejector pin (420) is fixed on the ejector plate (430), the ejector rod (410) is arranged on the side of the support table (440) facing the fixed plate (300), the side of the fixed plate (300) facing the ejector plate (430) is fixed with a second guide (320), and a second guide structure is arranged between the second guide (320) and the support table (440), so that when the ejector plate (430) approaches the fixed plate (300), the support table (440) can be driven by the ejector plate (430) to move along the direction of the second guide structure, and the ejector rod (410) falls into the avoiding position, and the angle between the direction of the second guide structure and the opening and closing direction is an acute angle; The second guide structure comprises a guide surface (321) arranged on the second guide (320) and an abutting surface (441) arranged on the support table (440), when the ejector plate (430) approaches the fixed plate (300), the abutting surface (441) can abut against the guide surface (321), and the support table (440) can move between a first position and a second position relative to the ejector plate (430) along the direction perpendicular to the opening and closing direction under the guidance of the guide surface (321), when the support table (440) is located at the first position, one end of the ejector rod (410) abuts against a support surface (442) of the support table (440), and the other end can push the back mold assembly (200) to move, when the support table (440) is located at the second position, one end of the ejector rod (410) falls into the avoiding position to stop pushing the back mold assembly (200).

2. The mold apparatus of claim 1, wherein The avoiding position is a containing groove (443) arranged on the side of the support table (440) facing the fixed plate (300).

3. The mold apparatus of claim 1, wherein The ejector plate assembly (400) further comprises a third guide (450) arranged on a side of the ejector plate (430) facing the fixed plate (300), and provided with a sliding groove (451) perpendicular to the opening and closing direction, and the support table (440) is slidingly connected to the third guide (450) along the sliding groove (451).

4. The mold apparatus of claim 1, wherein The ejector plate assembly (400) further comprises a reset member (460) arranged on a side of the support table (440) away from the abutting surface (441), and used for restoring the support table (440) from the second position to the first position.

5. The mold apparatus of claim 4, wherein An end of the ejector rod (410) away from the ejector plate (430) is provided with an extension (411) extending along a radial direction of the ejector rod (410), and the extension (411) is limited on a side of the fixed plate (300) away from the ejector plate (430), so as to limit a distance of the ejector rod (410) moving to a side close to the ejector plate (430). ​

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