Injection mold

Abstract

The utility model relates to the technical field of injection molding machining, in particular to an injection mold. The injection mold comprises a male mold assembly which comprises a male mold plate and a male mold core, and the male mold core is used for containing an insert; the female mold assembly comprises a female mold plate and a female mold core, the female mold plate and the male mold plate are correspondingly arranged, the female mold core is arranged on the side, facing the male mold plate, of the female mold plate, and the female mold core abuts against the insert after mold closing and is matched with the male mold core to form a forming cavity in the peripheral side of the insert; and the cooling assembly comprises a cooling piece and a liquid supply piece which are connected, the cooling piece penetrates through the female mold plate and the female mold core and is arranged opposite to the insert, a heat dissipation flow channel is formed in the cooling piece, the liquid supply piece is communicated with the heat dissipation flow channel, and the cooling piece abuts against the insert during mold closing and is used for cooling the insert. According to the injection mold, the insert can be cooled, and temperature rise and deformation of the insert in the injection molding process are effectively avoided.

Description

TECHNICAL FIELD

[0001] The application relates to the technical field of injection molding, and in particular to an injection mold. BACKGROUND

[0002] Insert molding is a process of placing a pre-prepared metal or other material insert of different materials into a mold, then injecting molten plastic, and after opening the mold, the insert is tightly wrapped in the plastic by the cooled and solidified plastic, forming a complex and delicate integrated part or product with inserts such as threads, electrodes, etc. The insert molding process has significant advantages, which can improve product performance, enhance design flexibility, reduce production cost and improve production efficiency. The insert molding process is widely used in the automotive industry, electronic equipment field, medical industry, etc.

[0003] With the continuous expansion of the application range of insert molding products, the requirements for the appearance and performance of the products are increasingly improved, and accordingly, the requirements for the injection mold are also increasingly high. During insert molding, the hot runner plate in the mold needs to be heated so that the material can flow to the insert and then combine with the insert. However, the heat transfer to the insert will cause the insert itself to heat up, and if the insert is a thin product, the heating will cause the insert to deform, affecting the quality of the product. CONTENT OF THE INVENTION

[0004] In view of the above, it is necessary to provide an injection mold which can cool the insert and effectively prevent the insert from deforming due to heating during the injection molding process.

[0005] The application provides an injection mold, which comprises: a male mold assembly comprising a male mold plate and a male mold core arranged on the upper side of the male mold plate, the male mold core being used for accommodating an insert;

[0006] a female mold assembly matched with the male mold assembly during clamping, comprising a female mold plate and a female mold core, the female mold plate being arranged correspondingly to the male mold plate, the female mold core being arranged on the side of the female mold plate facing the male mold plate, the female mold core abutting against the insert after clamping and forming a molding cavity with the male mold core on the peripheral side of the insert; and a cooling assembly comprising a cooling piece and a liquid supply piece connected with each other, the cooling piece penetrating through the female mold plate and the female mold core and being arranged opposite to the insert, a heat dissipation runner being arranged in the cooling piece, the liquid supply piece being in communication with the heat dissipation runner, and the cooling piece abutting against the insert for cooling the insert during clamping.

[0007] The injection mold has a male mold assembly and a female mold assembly that are matched when closed, the male mold core carries the insert, and the female mold core cooperates with the male mold core to form a molding cavity on the periphery of the insert for injection molding on the insert. The cooling assembly is arranged opposite the insert, and the cooling piece abuts the insert when the mold is closed. The cooling liquid in the liquid supply piece enters the heat dissipation flow channel in the cooling piece, and the cooling liquid cools the cooling piece, which in turn cools the insert, effectively solving the problem of insert deformation caused by excessive heating of the insert during injection molding.

[0008] In some embodiments, the liquid supply piece is arranged on the side of the female mold plate away from the female mold core, the female mold core is provided with a clearance hole corresponding to the cooling piece, the clearance hole is used to accommodate the part of the cooling piece opposite the female mold core, and the side wall of the clearance hole is arranged in spaced relation with the cooling piece.

[0009] In some embodiments, the female mold plate is provided with an accommodation hole in communication with the clearance hole, the accommodation hole includes an accommodation section and a stage section connected in series, the accommodation section is arranged close to the clearance hole and is used to accommodate the part of the cooling piece opposite the female mold plate, the stage section is arranged away from the clearance hole, the cross-sectional area of the stage section is smaller than that of the accommodation section, a limiting surface is arranged between the stage section and the accommodation section, and the limiting surface is used to limit the cooling piece; the liquid supply piece is provided with a connecting part inserted into the stage section, and the connecting part is connected with the cooling piece.

[0010] In some embodiments, the length of the connecting part is greater than the length of the stage section, the cooling piece is arranged in vertical movement in the clearance hole and the accommodation section, and when the cooling piece abuts the limiting surface, the side surface of the cooling piece away from the limiting surface is coplanar with the side surface of the female mold core away from the female mold plate.

[0011] In some embodiments, the clearance hole is a stepped hole, the cross-sectional area of the end of the clearance hole away from the female mold plate is greater than the cross-sectional area of the end of the clearance hole close to the female mold plate, the structure of the cooling piece is matched with the structure of the clearance hole, and the cross-sectional area of the end of the cooling piece away from the female mold plate is greater than the cross-sectional area of the end of the cooling piece close to the female mold plate.

[0012] In some embodiments, a plurality of first elastic pieces are arranged between the cooling piece and the female mold plate, two ends of each first elastic piece abut the cooling piece and the limiting surface respectively, and the first elastic pieces are used to push the cooling piece away from the female mold plate.

[0013] In some embodiments, the female mold plate is provided with a guide element corresponding to the accommodating hole on the side facing away from the cooling element, the guide element is provided with a guide hole in communication with the accommodating hole, and the connecting part is inserted into the guide hole, so that the guide element guides the connecting part.

[0014] In some embodiments, the female mold plate is provided with a limiting element corresponding to the liquid supply element on the side facing away from the female mold core, the limiting element is used to abut against the liquid supply element when the liquid supply element moves towards the female mold plate, so as to limit the liquid supply element.

[0015] In some embodiments, the liquid supply element is provided with a limiting groove corresponding to the limiting element, the limiting groove is used to clamp the limiting element to limit the liquid supply element.

[0016] In some embodiments, the injection mold further comprises a hot runner plate, the hot runner plate is arranged on the side of the female mold plate facing away from the female mold core, the liquid supply element is arranged on the hot runner plate, and the liquid supply element is movable in the vertical direction, a second elastic element is arranged between the liquid supply element and the hot runner plate, two ends of the second elastic element abut against the side of the liquid supply element facing away from the cooling element and the hot runner plate respectively, and the second elastic element is used to push the liquid supply element to move towards the female mold plate. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 The injection mold provided by the embodiments of the present application is shown in the structural schematic diagram.

[0018] Figure 2 The injection mold provided by the embodiments of the present application is shown in the structural schematic diagram. Figure 1 The injection mold provided by the embodiments of the present application is shown in the structural schematic diagram.

[0019] Figure 3 The injection mold provided by the embodiments of the present application is shown in the structural schematic diagram. Figure 2 The injection mold provided by the embodiments of the present application is shown in the structural schematic diagram.

[0020] Figure 4 The injection mold provided by the embodiments of the present application is shown in the structural schematic diagram. Figure 3 The injection mold provided by the embodiments of the present application is shown in the structural schematic diagram.

[0021] Figure 5 The injection mold provided by the embodiments of the present application is shown in the structural schematic diagram. Figure 4 The injection mold provided by the embodiments of the present application is shown in the structural schematic diagram.

[0022] Main element symbol explanation: injection mold 100, male mold assembly 10, male mold plate 11, male mold core 12, lower fixed plate 13, jump plate 14, ejector plate 15, female mold assembly 20, female mold plate 21, accommodating hole 211, accommodating section 2111, stage section 2112, limiting surface 2113, female mold core 22, avoidance hole 221, heat insulation plate 23, upper fixed plate 24, cylinder plate 25, guide 26, guide hole 261, limiting piece 27, hot runner plate 28, cooling assembly 30, cooling piece 31, heat dissipation runner 311, opening 312, liquid supply piece 32, liquid inlet hole 321, liquid outlet hole 322, connecting part 323, limiting groove 324, first elastic piece 33, second elastic piece 34, forming cavity 40, insert 200. DETAILED DESCRIPTION

[0023] The embodiments of the present application will be described in detail below with reference to the drawings, in which the same or similar components have the same reference numerals throughout. The embodiments described below are examples for explaining the present application and are not intended to limit the present application.

[0024] In the description of the present application, it should be understood that the terms indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the drawings, and are only for the purpose of describing the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application. In addition, the terms "first", "second" are for descriptive purposes only and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the technical features indicated. Therefore, the features defined as "first", "second" can explicitly or implicitly include one or more of the features. In the description of the present application, it should be noted that the meaning of "a plurality of" is two or more, unless otherwise explicitly specified and limited.

[0025] In the description of the present application, it should be noted that unless otherwise explicitly specified and limited, the term "connection" should be understood broadly, for example, it can be fixedly connected, or detachably connected, or integrally connected; it can be mechanically connected, or electrically connected or can communicate with each other, it can be directly connected, or indirectly connected through an intermediate medium, it can be the internal communication of two elements or the interaction relationship between two elements. For those skilled in the art, the specific meaning of the above-mentioned term in the present application can be understood according to the specific circumstances.

[0026] The embodiments of the present application will be described in detail below with reference to the drawings, in which the same or similar components have the same reference numerals throughout. The embodiments described below are examples for explaining the present application and are not intended to limit the present application.

[0027] Please refer to Figure 1 and Figure 2The embodiment of the present application provides an injection mold 100 for injection molding a molded part (not shown in the figure) on an insert 200, the insert 200 can be a metal back shell or a metal middle frame of an electronic product, and the electronic product can be a mobile phone or a tablet computer. The injection mold 100 comprises a male mold assembly 10, a female mold assembly 20 and a cooling assembly 30.

[0028] Specifically, referring to Figure 1 , Figure 2 and Figure 3 , the male mold assembly 10 comprises a male mold plate 11 and a male mold core 12 arranged on the upper side of the male mold plate 11, and the male mold core 12 is used for accommodating the insert 200. In the embodiment, the male mold assembly 10 can further comprise a lower fixed plate 13, a jump plate 14 and a ejector plate 15, which are not described herein.

[0029] The female mold assembly 20 is matched with the male mold assembly 10, and comprises a female mold plate 21 and a female mold core 22. The female mold plate 21 is arranged correspondingly to the male mold plate 11, and the female mold core 22 is arranged on the side of the female mold plate 21 facing the male mold plate 11. The female mold core 22 abuts against the insert 200 after the mold is closed, and cooperates with the male mold core 12 to form a molding cavity 40 on the peripheral side of the insert 200. In the embodiment, the female mold assembly 20 can further comprise a heat insulation plate 23, an upper fixed plate 24 and a cylinder plate 25, which are not described herein. When the mold is closed, the female mold plate 21 moves towards the male mold plate 11, so that the female mold core 22 is pressed on the male mold core 12 and the insert 200 located on the male mold core 12. At this time, the male mold core 12 and the female mold core 22 cooperate with the insert 200 to form the molding cavity 40 on the peripheral side of the insert 200, and the molding cavity 40 is used for forming the molded part.

[0030] Please refer to Figure 4 and Figure 5The cooling assembly 30 comprises a cooling member 31 and a liquid supply member 32 connected with each other. The cooling member 31 penetrates through the female mold plate 21 and the female mold core 22 and is arranged opposite to the insert 200. The cooling member 31 is provided with a heat dissipation flow channel 311. The liquid supply member 32 is connected with the heat dissipation flow channel 311. In the embodiment, the heat dissipation flow channel 311 has two openings 312. The liquid supply member 32 is provided with a liquid inlet hole 321 and a liquid outlet hole 322 connected with the two openings 312 of the heat dissipation flow channel 311 respectively. The liquid inlet hole 321 and the liquid outlet hole 322 are connected with a cooling liquid circulating supply device (not shown in the figure). The cooling liquid circulating supply device can be a low-temperature cooling water circulating device, which is used for continuous supply and circulation of the cooling liquid. When the mold is closed, the cooling member 31 abuts against the insert 200 to cool the insert 200. The cooling member 31 can be a block structure. In order to improve the cooling effect of the cooling member 31, the heat dissipation flow channel 311 can be arranged in multiple layers around the cooling member 31. In order to facilitate the connection of the two openings 312 of the heat dissipation flow channel 311 with the liquid inlet hole 321 and the liquid outlet hole 322 respectively, the two openings 312 are arranged on the side of the cooling member 31 facing the liquid supply member 32. The liquid supply member 32 is generally in a tubular or rod-shaped structure. It can be understood that the liquid inlet hole 321, the heat dissipation flow channel 311 and the liquid outlet hole 322 are connected in sequence. The cooling liquid such as cold water or cold oil can be injected into the heat dissipation flow channel 311 from the liquid inlet hole 321. After passing through the heat dissipation flow channel 311, the cooling liquid carries away the heat of the cooling member 31. Through repeated circulation, the temperature of the cooling member 31 itself can be reduced. When the mold is closed, the cooling member 31 abuts against the insert 200 to absorb the heat of the insert 200, so as to avoid deformation of the insert 200 caused by excessive temperature of the insert 200 itself. In the embodiment, the temperature of the cooling member 31 ranges from 20℃ to 40℃.

[0031] The injection mold 100 provided by the embodiment of the present application has the male mold assembly 10 and the female mold assembly 20 matched when the mold is closed. The male mold core 12 carries the insert 200. The female mold core 22 cooperates with the male mold core 12 to form a molding cavity 40 on the peripheral side of the insert 200, which is used for injection molding on the insert 200. The cooling assembly 30 is arranged opposite to the insert 200. The cooling member 31 abuts against the insert 200 when the mold is closed. The cooling liquid in the liquid supply member 32 enters the heat dissipation flow channel 311 in the cooling member 31. The cooling liquid cools the cooling member 31. The cooling member 31 can in turn cool and lower the temperature of the insert 200, effectively solving the problem of deformation of the insert 200 caused by excessive temperature of the insert 200 during the injection molding process.

[0032] In some embodiments, please refer to Figure 2 , Figure 3 and Figure 4The liquid supply member 32 is arranged on the side of the female mold plate 21 away from the female mold core 22. The female mold core 22 is provided with a clearance hole 221 corresponding to the cooling member 31. The clearance hole 221 is used to accommodate the part of the cooling member 31 opposite to the female mold core 22, and the side wall of the clearance hole 221 is arranged in a spaced manner with the cooling member 31. By arranging the clearance hole 221, the cooling member 31 can be positioned, and at the same time, the cooling member 31 is provided with a placement space. The side wall of the clearance hole 221 is arranged in a spaced manner with the cooling member 31, which can effectively avoid unnecessary interference or friction between the cooling member 31 and the side wall of the female mold core 22 during installation and operation, and at the same time, the cooling member 31 is prevented from contacting the female mold core 22, so as to prevent the female mold core 22 from transmitting heat to the cooling member 31, and affect the cooling effect of the cooling member 31 on the insert 200. The distance between the side wall of the clearance hole 221 and the cooling member 31 is greater than 0.1 mm.

[0033] In some embodiments, referring to Figure 2 , Figure 3 , Figure 4 and Figure 5 , the female mold plate 21 is provided with an accommodation hole 211 communicating with the clearance hole 221. The accommodation hole 211 includes an accommodation section 2111 and a stage section 2112 connected with each other. The accommodation section 2111 is arranged close to the clearance hole 221, and is used to accommodate the part of the cooling member 31 opposite to the female mold plate 21. The stage section 2112 is arranged away from the clearance hole 221. The cross-sectional area of the stage section 2112 is smaller than that of the accommodation section 2111. A limiting surface 2113 is arranged between the stage section 2112 and the accommodation section 2111, and is used to limit the position of the cooling member 31. The liquid supply member 32 is provided with a connecting portion 323 inserted into the stage section 2112, and the connecting portion 323 is connected with the cooling member 31.

[0034] The accommodation section 2111 of the accommodation hole 211 can accommodate part of the cooling member 31, and the side wall of the accommodation section 2111 can limit the position of the cooling member 31 in the horizontal direction, thereby improving the stability of the cooling member 31. The stage section 2112 of the accommodation hole 211 can accommodate the connecting portion 323 of the liquid supply member 32, and the side edge of the stage section 2112 can limit the position of the connecting portion 323 in the horizontal direction, thereby improving the stability of the liquid supply member 32. When the cooling member 31 abuts against the limiting surface 2113, the position of the cooling member 31 in the vertical direction can be limited. In this way, by arranging the accommodation hole 211, part of the cooling member 31 and the connecting portion 323 can be accommodated, thereby improving the stability of the cooling member 31 and the liquid supply member 32.

[0035] In some embodiments, referring to Figure 3 , Figure 4 and Figure 5, the length of the connecting portion 323 is greater than the length of the platform stage 2112, the cooling member 31 is movably arranged in the avoiding hole 221 and the accommodating section 2111 along the vertical direction, and when the cooling member 31 abuts against the limiting face 2113, the side of the cooling member 31 away from the limiting face 2113 is coplanar with the side of the female die core 22 away from the female die plate 21. In this way, before the mold is closed, the cooling member 31 moves away from the female die plate 21, the connecting portion 323 slides along the platform stage 2112 until the body of the liquid supply member 32 abuts against the female die plate 21, at this time, the side of the cooling member 31 away from the female die plate 21 protrudes from the side of the female die core 22 away from the female die plate 21. When the mold is closed, the cooling member 31 first contacts the insert 200 to preliminarily position the insert 200, and the insert 200 can be cooled before the mold is completely closed. During the mold closing process, the female die plate 21 and the female die core 22 continue to move towards the male die plate 11 and the male die core 12 until the female die core 22 abuts against the insert 200 and the male die core 12, during this process, the cooling member 31 slides in the avoiding hole 221 and the accommodating section 2111 until the cooling member 31 abuts against the limiting face 2113, and the side of the cooling member 31 away from the limiting face 2113 is coplanar with the side of the female die core 22 away from the female die plate 21, so that after the mold is closed, the cooling member 31 and the female die core 22 both contact the insert 200.

[0036] In some embodiments, referring to Figure 3 , Figure 4 and Figure 5 , the avoiding hole 221 is a stepped hole, the cross-sectional area of the end of the avoiding hole 221 away from the female die plate 21 is greater than the cross-sectional area of the end of the avoiding hole 221 close to the female die plate 21, the structure of the cooling member 31 is matched with the structure of the avoiding hole 221, and the cross-sectional area of the end of the cooling member 31 away from the female die plate 21 is greater than the cross-sectional area of the end of the cooling member 31 close to the female die plate 21. The longitudinal section of the avoiding hole 221 is substantially T-shaped, and the longitudinal section of the cooling member 31 is substantially T-shaped, so that the contact area between the cooling member 31 and the insert 200 can be increased without reducing the connection area between the female die core 22 and the female die plate 21, which is beneficial to improve the cooling effect.

[0037] In some embodiments, referring to Figure 3 , Figure 4 and Figure 5A plurality of first elastic members 33 are arranged between the cooling member 31 and the mold plate 21, two ends of each first elastic member 33 abut against the cooling member 31 and the limiting surface 2113 respectively, and the first elastic member 33 is used for pushing the cooling member 31 away from the mold plate 21. The first elastic member 33 can be an elastic part such as a spring, and the number of first elastic members 33 can be two, four, etc. By arranging the first elastic member 33, the cooling member 31 can be pushed away from the mold plate 21, so that the cooling member 31 protrudes out of the mold core 22 before the mold is closed, ensuring that the cooling member 31 contacts the insert 200 before the mold core 22 when the mold is closed. When the mold is opened, the first elastic member 33 can push the cooling member 31 to keep in contact with the insert 200 when the mold core 22 is just separated from the insert 200, further improving the cooling effect. It can be understood that the cooling member 31 and the limiting surface 2113 can be provided with a blind groove matched with the first elastic member 33 to accommodate the first elastic member 33 when the first elastic member 33 is compressed.

[0038] In some embodiments, referring to Figure 2 and Figure 3 , the side of the mold plate 21 away from the cooling member 31 is provided with a guide member 26 corresponding to the accommodating hole 211, the guide member 26 is provided with a guide hole 261 in communication with the accommodating hole 211, the connecting part 323 is inserted into the guide hole 261, and the guide member 26 is used for guiding the connecting part 323. The guide member 26 can be an annular structure, and the guide hole 261 of the guide member 26 provides an accurate guide path for the connecting part 323, so that the connecting part 323 can stably move along the guide hole 261, thereby improving the stability of the cooling member 31 connected with the connecting part 323.

[0039] In some embodiments, referring to Figure 3 , Figure 4 and Figure 5 , the side of the mold plate 21 away from the mold core 22 is provided with a limiting member 27 corresponding to the liquid supply member 32, and the limiting member 27 is used for abutting against the liquid supply member 32 when the liquid supply member 32 moves towards the mold plate 21 to limit the liquid supply member 32. The limiting member 27 can be a block structure, and in order to further improve the limiting effect of the limiting member 27 on the liquid supply member 32, two limiting members 27 can be provided, and the two limiting members 27 can be symmetrically arranged about the connecting part 323 to limit the body of the liquid supply member 32. By arranging the limiting member 27, when the cooling member 31 moves away from the mold plate 21 during the opening of the mold, i.e. when the liquid supply member 32 moves towards the mold plate 21, the limiting member 27 abuts against the liquid supply member 32 to improve the stability of the limiting of the liquid supply member 32.

[0040] In some embodiments, referring to Figure 3 , Figure 4 and Figure 5The liquid supply member 32 is provided with a limiting groove 324 corresponding to the limiting member 27, and the limiting groove 324 is used for clamping the limiting member 27 to limit the liquid supply member 32. By providing the limiting groove 324, the limiting member 27 can be clamped when the liquid supply member 32 abuts against the limiting member 27, thereby limiting the liquid supply member 32 in the horizontal direction, and further improving the stability of the liquid supply member 32.

[0041] In some embodiments, referring to 1, Figure 2 and Figure 3 The injection mold 100 further comprises a hot runner plate 28, the hot runner plate 28 is arranged on the side of the female mold plate 21 away from the female mold core 22, the liquid supply member 32 is arranged on the hot runner plate 28, and the liquid supply member 32 is movable in the vertical direction, and a second elastic member 34 is arranged between the liquid supply member 32 and the hot runner plate 28, two ends of the second elastic member 34 abut against the side of the liquid supply member 32 away from the cooling member 31 and the hot runner plate 28 respectively, and the second elastic member 34 is used for pushing the liquid supply member 32 to move towards the female mold plate 21. It can be understood that a through hole corresponding to the liquid supply member 32 can be formed in the hot runner plate 28, so that the liquid supply member 32 can move up and down in the hot runner plate 28. The second elastic member 34 can be a spring or the like, and by arranging the second elastic member 34, the liquid supply member 32 can be pushed to move towards the female mold plate 21 when the mold is opened.

[0042] The working process of the injection mold 100 provided by the embodiments of the present application is as follows:

[0043] Firstly, the insert 200 is placed in the male mold core 12, and then the mold is closed. When the mold is closed, the cooling member 31 first contacts the insert 200. It can be understood that during the use of the injection mold 100, the cooling assembly 30 is always supplied with cooling liquid to cool the cooling member 31, and the cooling member 31 can take away the heat of the insert 200 after contacting the insert 200 to cool the insert 200. Then the female mold assembly 20 continues to move towards the male mold assembly 10 until the female mold core 22 abuts against the insert 200, at this time the female mold core 22 cooperates with the male mold core 12 and the insert 200 to form a molding cavity 40 on the side of the insert 200, and the cooling member 31 abuts against the limiting surface 2113.

[0044] Then, the molding cavity 40 can be injection molded, and the cooling member 31 always cools the insert 200 during this process. After the injection is completed, the mold can be opened. During the opening process, the female mold core 22 first moves away from the insert 200, the first elastic member 33 pushes the cooling member 31 to make the cooling member 31 abut against the insert 200, and the second elastic member 34 pushes the liquid supply member 32, i.e. the positions of the liquid supply member 32 and the cooling member 31 remain unchanged. Until the liquid supply member 32 abuts against the limiting member 27, then the liquid supply member 32 moves with the female mold plate 21, and the liquid supply member 32 drives the cooling member 31 to move away from the insert 200.

[0045] It is apparent that the present application is not limited to the details of the foregoing exemplary embodiments, and thus modifications and equivalent arrangements can be made to the application without departing from the spirit or scope of the application. Therefore, the scope of the application should be defined by the appended claims rather than by the foregoing description, and all changes that come within the meaning and range of equivalents are intended to be embraced therein.

[0046] Finally, it should be noted that the above embodiments are merely used to illustrate the technical solutions of the present application, rather than limit the present application. Although the present application has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present application can be modified or equivalently replaced, without departing from the spirit and scope of the present application.

Claims

1. An injection mold characterized in that, The injection mold comprises: a male mold assembly, which comprises a male mold plate and a male mold core arranged on the upper side of the male mold plate, and the male mold core is used for accommodating an insert; a female mold assembly, which is matched with the male mold assembly in a clamping mode, and comprises a female mold plate and a female mold core, the female mold plate is arranged correspondingly to the male mold plate, the female mold core is arranged on the side of the female mold plate facing the male mold plate, the female mold core abuts against the insert after clamping, and cooperates with the male mold core to form a molding cavity on the peripheral side of the insert; and a cooling assembly, which comprises a cooling piece and a liquid supply piece connected with each other, the cooling piece penetrates through the female mold plate and the female mold core and is arranged opposite to the insert, a heat dissipation flow channel is formed in the cooling piece, and the liquid supply piece is in communication with the heat dissipation flow channel, and the cooling piece abuts against the insert during clamping to cool the insert.

2. The injection mold of claim 1, wherein the liquid supply piece is arranged on the side of the female mold plate away from the female mold core, the female mold core is provided with a clearance hole corresponding to the cooling piece, the clearance hole is used for accommodating the part of the cooling piece opposite to the female mold core, and the side wall of the clearance hole is arranged in a spaced manner with the cooling piece.

3. The injection mold of claim 2, wherein the female mold plate is provided with an accommodation hole in communication with the clearance hole, the accommodation hole comprises an accommodation section and a stage section connected with each other, the accommodation section is arranged close to the clearance hole and is used for accommodating the part of the cooling piece opposite to the female mold plate, the stage section is arranged away from the clearance hole, the cross-sectional area of the stage section is smaller than that of the accommodation section, a limiting surface is arranged between the stage section and the accommodation section, and the limiting surface is used for limiting the cooling piece; the liquid supply piece is provided with a connecting part inserted into the stage section, and the connecting part is connected with the cooling piece.

4. The injection mold of claim 3, wherein the length of the connecting part is greater than the length of the stage section, the cooling piece is arranged in a vertical direction in the clearance hole and the accommodation section, and when the cooling piece abuts against the limiting surface, the side surface of the cooling piece away from the limiting surface is coplanar with the side surface of the female mold core away from the female mold plate.

5. The injection mold of claim 3, wherein the clearance hole is a stepped hole, the cross-sectional area of the end of the clearance hole away from the female mold plate is greater than that of the end of the clearance hole close to the female mold plate, the structure of the cooling piece is matched with that of the clearance hole, and the cross-sectional area of the end of the cooling piece away from the female mold plate is greater than that of the end of the cooling piece close to the female mold plate.

6. The injection mold of claim 4, wherein a plurality of first elastic pieces are arranged between the cooling piece and the female mold plate, the two ends of each first elastic piece abut against the cooling piece and the limiting surface respectively, and the first elastic pieces are used for pushing the cooling piece away from the female mold plate.

7. The injection mold of claim 3, wherein The side of the female mold plate away from the cooling member is provided with a guide member corresponding to the accommodating hole, the guide member is provided with a guide hole in communication with the accommodating hole, the connecting part is inserted into the guide hole, and the guide member is used for guiding the connecting part.

8. The injection mold of claim 1, wherein, The side of the female mold plate away from the female mold core is provided with a limiting member corresponding to the liquid supply member, the limiting member is used for abutting against the liquid supply member when the liquid supply member moves towards the female mold plate, and the limiting member is used for limiting the liquid supply member.

9. The injection mold of claim 8, wherein, The liquid supply member is provided with a limiting groove corresponding to the limiting member, the limiting groove is used for clamping the limiting member to limit the liquid supply member.

10. The injection mold of claim 1, wherein, The injection mold further comprises a hot runner plate, the hot runner plate is arranged on the side of the female mold plate away from the female mold core, the liquid supply member is arranged on the hot runner plate, the liquid supply member is movable in the vertical direction, at least one second elastic member is arranged between the liquid supply member and the hot runner plate, two ends of the second elastic member respectively abut against the side of the liquid supply member away from the cooling member and the hot runner plate, and the second elastic member is used for pushing the liquid supply member to move towards the female mold plate.

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