Injection mold and injection molding equipment

Abstract

The embodiment of the utility model relates to the technical field of injection molding devices, and provides an injection mold and injection molding device.The injection mold comprises a mold top plate, a mold bottom plate, a front mold, a rear mold, a first ejector plate and a second ejector plate, the mold top plate and the mold bottom plate are oppositely arranged, and the first ejector plate and the second ejector plate are connected. The second ejector plate is connected with the mold bottom plate; one end of the product ejector pin is fixedly connected with the mold bottom plate, and the other end of the product ejector pin extends into the product cavity and is in contact with the product; the stub bar ejecting assembly comprises an ejecting block and a stub bar ejector pin which are connected, one end of the stub bar ejector pin is connected with the ejecting block, the other end of the stub bar ejector pin makes contact with the stub bar, the ejecting block penetrates through the mold bottom plate and part of the second ejector plate, and the ejecting block and the first ejector plate are spaced. The embodiment of the utility model at least can improve the injection molding efficiency of the injection mold.

Description

Technical Field

[0001] Embodiments of the present disclosure relate to the technical field of injection molding devices, and in particular, to an injection mold and an injection molding device. Background Art

[0002] In the injection molding industry, an injection molded product is formed by injecting molten plastic from a runner into a mold through an injection molding machine. After the plastic cools, a connected product and a sprue are formed. The sprue is the cooled plastic in the runner, and the product is the desired target product. Therefore, it is necessary to separate the sprue from the product to obtain the target product.

[0003] In the related art, the product and the sprue are usually separated manually, or the product and the sprue are cut by equipment. In any case, post-processing is required, resulting in a low injection molding efficiency of the injection mold in the related art. Summary of the Utility Model

[0004] Embodiments of the present disclosure provide an injection mold and an injection molding device, which can at least improve the injection molding efficiency of the injection mold.

[0005] According to some embodiments of the present disclosure, there are provided an injection mold and an injection molding device. The injection mold includes: a mold top plate and a mold bottom plate arranged opposite to each other, and an injection port is provided on the mold top plate; a front mold, which is connected to the mold top plate and is located on the side of the mold top plate facing the mold bottom plate. The front mold has a communicating glue inlet runner, an upper shunt groove and a cavity. The glue inlet runner is communicated with the injection port; a rear mold, which is located between the front mold and the mold bottom plate. The rear mold has a communicating lower shunt groove and a core. The upper shunt groove and the lower shunt groove are used to form a shunt channel for forming a sprue, and the cavity and the core are used to form a product cavity for forming a product; a first ejector plate and a second ejector plate connected to each other. The first ejector plate is located between the rear mold and the second ejector plate, and the second ejector plate is connected to the mold bottom plate; a product ejector pin, one end of which is fixedly connected to the mold bottom plate, and the other end extends into the product cavity and contacts the product; a sprue ejecting assembly, which includes a connected ejecting block and a sprue ejecting pin. One end of the sprue ejecting pin is connected to the ejecting block, and the other end contacts the sprue. The ejecting block penetrates through the mold bottom plate and part of the second ejector plate, and there is a gap between the ejecting block and the first ejector plate.

[0006] In some embodiments, the front mold includes a front mold base and a front mold core located within the front mold base. The front mold base is fixedly connected to the mold top plate. The front mold core has a communicating glue inlet runner, an upper shunt groove, and a cavity therein. The rear mold includes a rear mold base and a rear mold core located within the rear mold base. The rear mold base is fixedly connected to the mold bottom plate. The rear mold core has a communicating lower shunt groove and a core therein.

[0007] In some embodiments, the front mold includes a front mold base and a front mold core located within the front mold base. The front mold base is fixedly connected to the mold top plate. The front mold core has a communicating glue inlet runner, an upper shunt groove, and a cavity therein. The rear mold includes a rear mold base and a rear mold core located within the rear mold base. The rear mold base is fixedly connected to the mold bottom plate. The rear mold core has a communicating lower shunt groove and a core therein.

[0008] In some embodiments, the injection mold further includes a fixed sleeve for connecting the first ejector plate and the rear mold core. The fixed sleeve is sleeved around a part of the product ejector pin. Wherein, there is a gap between the second ejector plate and the mold bottom plate.

[0009] In some embodiments, the distance between the ejector block and the first ejector plate is less than the distance between the second ejector plate and the mold bottom plate.

[0010] In some embodiments, the injection mold further includes a guide bushing disposed within the front mold base, and a guide rod passing through the rear mold base with a part of the guide rod located within the guide bushing.

[0011] In some embodiments, the injection mold further includes a locating ring located within the mold top plate and around the injection port for positioning the injection port.

[0012] In some embodiments, the injection mold further includes mold feet for connecting the rear mold and the mold bottom plate.

[0013] In some embodiments, the injection mold further includes a fixing member detachably connected to both the front mold and the rear mold for fixedly connecting the front mold and the rear mold.

[0014] In some embodiments, the injection mold further includes a cooling water pipe for introducing cooling water, and the cooling water pipe is located within the front mold and the rear mold.

[0015] According to some embodiments of the present disclosure, on the other hand, an injection molding device is also provided, including the injection mold described in any of the above embodiments.

[0016] The technical solutions provided by the embodiments of the present disclosure have at least the following advantages:

[0017] In the technical solution of the injection mold provided by the embodiments of the present disclosure, it includes: a mold top plate and a mold bottom plate arranged opposite to each other, and an injection port is provided on the mold top plate; a front mold, the front mold is connected to the mold top plate and is located on the side of the mold top plate facing the mold bottom plate, and a glue inlet runner, an upper shunt groove and a cavity are connected in the front mold, and the glue inlet runner is communicated with the injection port; a rear mold, the rear mold is located between the front mold and the mold bottom plate, and a lower shunt groove and a core are connected in the rear mold, the upper shunt groove and the lower shunt groove are used to form a shunt channel for forming a sprue, and the cavity and the core are used to form a product cavity for forming a product; a first ejector plate and a second ejector plate connected to each other, the first ejector plate is located between the rear mold and the second ejector plate, and the second ejector plate is connected to the mold bottom plate; a product ejector pin, one end of the product ejector pin is fixedly connected to the mold bottom plate, and the other end extends into the product cavity and contacts the product; a sprue ejection assembly, the sprue ejection assembly includes a top block and a sprue ejector pin connected to each other, one end of the sprue ejector pin is connected to the top block, and the other end contacts the sprue, the top block penetrates through the mold bottom plate and part of the second ejector plate, and there is a gap between the top block and the first ejector plate. After mold opening, there is a gap between the top block and the first ejector plate, so that there is a movement space between the top block and the first ejector plate, the top block can move towards the first ejector plate, driving the sprue ejector pin to move towards the first ejector plate, making the sprue contacted by the sprue ejector pin move relative to the rear mold and separate from the rear mold, so that the sprue is separated from the product located in the rear mold, thus eliminating the need for post-process treatment of separating the product from the sprue and improving the injection molding efficiency. Description of the Drawings

[0018] One or more embodiments are exemplarily illustrated by pictures in the corresponding drawings. These exemplary illustrations do not limit the embodiments unless otherwise stated. The figures in the drawings do not constitute a proportional limitation; in order to more clearly illustrate the technical solutions in the embodiments of the present disclosure or in the traditional technology, the drawings required to be used in the embodiments will be briefly introduced below. Obviously, the following-described drawings are only some embodiments of the present disclosure. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0019] Figure 1 It is a schematic structural diagram of an injection mold provided by an embodiment of the present disclosure;

[0020] Figure 2 It is a schematic cross-sectional structural diagram of an injection mold provided by an embodiment of the present disclosure;

[0021] Figure 3 A structural schematic diagram of the main runner, sub-runners and product cavity in the injection mold provided by an embodiment of the present disclosure;

[0022] Figures 4 to 7 Several partial structural schematic diagrams of the injection mold provided by an embodiment of the present disclosure. Detailed implementation manners

[0023] As can be seen from the background art, the injection efficiency of the injection mold in the related art is relatively low.

[0024] An embodiment of the present disclosure provides an injection mold. There is a gap between the ejector block and the first ejector plate, so that there is a moving space between the ejector block and the first ejector plate. The ejector block can move towards the first ejector plate, driving the sprue pin to move towards the first ejector plate, causing the sprue contacted by the sprue pin to move relative to the rear mold and separate from the rear mold, so that the sprue is separated from the product located in the rear mold. Thus, the post-process treatment for separating the product from the sprue is not required, and the injection efficiency can be improved.

[0025] In the description of the embodiments of the present application, technical terms such as "first" and "second" are only used to distinguish different objects, and cannot be understood as indicating or implying relative importance or implicitly specifying the quantity, specific order or primary-secondary relationship of the indicated technical features. In the description of the embodiments of the present application, "a plurality" means more than two, unless otherwise clearly and specifically defined.

[0026] Referring to "embodiments" herein means that the specific features, structures or characteristics described in connection with the embodiments can be included in at least one embodiment of the present application. The phrase appears in various places in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment mutually exclusive with other embodiments. Those skilled in the art will explicitly and implicitly understand that the embodiments described herein can be combined with other embodiments.

[0027] According to the concept, various modifications and changes can be applied to the examples of the implementation manners, so that the examples of the implementation manners will be illustrated in the drawings and described in the specification. However, the examples of the implementation manners according to the concept are not limited to the specific implementation manners, but include all changes, equivalents or replacements included within the spirit and technical scope of the present disclosure.

[0028] The terms used in this specification are only for describing specific examples of the implementation manners, and are not intended to limit the present disclosure. If there is no clear opposite meaning in the context, the singular form may include the plural form. In this specification, it should be understood that the terms "include" or "have" indicate the existence of the features, quantities, steps, operations, components, parts or combinations thereof described in the specification, but do not preclude the possibility of the existence or addition of one or more other features, quantities, steps, operations, components, parts or combinations thereof.

[0029] Unless otherwise defined, all terms (including technical and scientific terms) used herein have the same meaning as commonly understood by one of ordinary skill in the art. If a term defined in the common dictionary is not clearly defined in this specification, it shall be interpreted as having the same meaning as in the context of the relevant art and shall not be interpreted in an ideal or overly formal sense.

[0030] Descriptions of well-known components and processing techniques may be omitted so as not to unnecessarily obscure the embodiments of the present disclosure.

[0031] Throughout the specification, the same reference numerals refer to the same elements. Therefore, even if a reference numeral is not mentioned or described with reference to one drawing, it may be mentioned or described with reference to another drawing. In addition, even if a reference numeral is not shown in one drawing, it may be mentioned or described with reference to another drawing.

[0032] The embodiments of the present disclosure will be described in detail below with reference to the drawings. However, those of ordinary skill in the art can understand that in the embodiments of the present disclosure, many technical details are provided to help the reader better understand the present disclosure. However, even without these technical details and various changes and modifications based on the following embodiments, the technical solutions claimed in the present disclosure can still be implemented.

[0033] Figure 1 A schematic structural diagram of an injection mold provided for an embodiment of the present disclosure Figure 2 A schematic cross-sectional structural diagram of an injection mold provided for an embodiment of the present disclosure Figure 3 A schematic structural diagram of a glue inlet runner, a sub-runner and a product cavity in an injection mold provided for an embodiment of the present disclosure Figure 4 and Figure 5 Two schematic partial structural diagrams of an injection mold provided for an embodiment of the present disclosure.

[0034] With reference to Figures 1 to 5, the injection mold includes a relatively arranged mold top plate 1 and a mold bottom plate 2, a front mold 3, a rear mold 4, a connected first ejector plate 5 and a second ejector plate 6, a product ejector pin 7 and a sprue ejecting assembly 8. The mold top plate 1 is provided with an injection port 101. The front mold 3 is connected to the mold top plate 1 and is located on the side of the mold top plate 1 facing the mold bottom plate 2. The front mold 3 has a connected glue inlet runner 301, an upper shunt groove and a cavity. The glue inlet runner 301 is communicated with the injection port 101. The rear mold 4 is located between the front mold 3 and the mold bottom plate 2. The rear mold 4 has a connected lower shunt groove and a core. The upper shunt groove and the lower shunt groove are used to form a shunt runner 9 for the sprue, and the cavity and the core are used to form a product cavity 10 for the product. The first ejector plate 5 is located between the rear mold 4 and the second ejector plate 6, and the second ejector plate 6 is connected to the mold bottom plate 2. One end of the product ejector pin 7 is fixedly connected to the mold bottom plate 2, and the other end extends into the product cavity 10 and contacts the product. The sprue ejecting assembly 8 includes a connected ejector block 801 and a sprue ejector pin 802. One end of the sprue ejector pin 802 is connected to the ejector block 801, and the other end contacts the sprue. The ejector block 801 penetrates through the mold bottom plate 2 and part of the second ejector plate 6, and there is a gap between the ejector block 801 and the first ejector plate 5.

[0035] The mold top plate 1 and the mold bottom plate 2 are used to provide a supporting force for other components of the injection mold.

[0036] The injection port 101 serves as an inlet for the molten plastic.

[0037] Figure 6 and Figure 7 are two partial structural schematic diagrams of the injection mold provided by the embodiments of the present disclosure.

[0038] With reference to Figure 3 、 Figure 6 and Figure 7 , in some embodiments, the front mold 3 includes: a front mold base 302 and a front mold core 303 located in the front mold base 302. The front mold base 302 is fixedly connected to the mold top plate 1. The front mold core 303 has a connected glue inlet runner 301, an upper shunt groove and a cavity. The rear mold 4 includes: a rear mold base 401 and a rear mold core 402 located in the rear mold base 401. The rear mold base 401 is fixedly connected to the mold bottom plate 2. The rear mold core 402 has a connected lower shunt groove and a core.

[0039] The front mold base 302 is used to provide a supporting force for the front mold core 303 and is used to connect the mold top plate 1 and the front mold core 303. The rear mold base 401 is used to provide a supporting force for the rear mold core 402 and is used to connect the mold bottom plate 2 and the rear mold core 402.

[0040] The front mold core 303 and the rear mold core 402 are used to form the product and the sprue. Specifically, the upper runner groove in the front mold core 303 and the lower runner groove in the rear mold core 402 are used to form the runner 9 for the sprue, and the cavity in the front mold core 303 and the core in the rear mold core 402 are used to form the product cavity 10 for the product. The molten plastic flows into the runner 9 and the product cavity 10 through the injection port 101 and the feed runner 301 in the front mold core 303. After the molten plastic cools, the connected product and sprue are formed.

[0041] Reference Figure 1 and Figure 5 The first ejector plate 5 is fixedly connected to the second ejector plate 6, and the first ejector plate 5 is spaced from the ejector block 801 passing through a part of the second ejector plate 6, so that there is a moving space between the ejector block 801 and the mold top plate 1, enabling the ejector block 801 to move towards the mold top plate 1. Driven by the ejector block 801, the sprue ejector pin 802 can move towards the mold top plate 1, causing the sprue contacted by the sprue ejector pin 802 to separate from the rear mold 4, separating the product from the sprue. Thus, the subsequent process of separating the product from the sprue is not required, and the injection efficiency can be improved.

[0042] Combined with reference Figure 1 、 Figure 3 and Figure 4 One end of the product ejector pin 7 is fixedly connected to the mold bottom plate 2, and the other end extends into the product cavity 10 and contacts the product, and is used to eject the product after mold opening, separating the product from the rear mold 4.

[0043] Combined with reference Figure 1 and Figure 2 The sprue ejection assembly 8 is used to separate the sprue and the product. Specifically, the ejector block 801 moves towards the first ejector plate 5. Driven by the ejector block 801, the sprue ejector pin 802 moves towards the first ejector plate 5, causing the sprue contacted by the sprue ejector pin 802 to move towards the front mold 3 and separate from the rear mold 4, separating the product from the sprue. Thus, the subsequent process of separating the product from the sprue is not required, and the injection efficiency can be improved.

[0044] Combined with reference 2 and Figure 3 The runner 9 is used to connect the feed runner 301 and the product cavity 10, enabling the molten plastic flowing in through the injection port 101 and the feed runner 310 to flow into the product cavity 10. After the molten plastic cools, a sprue will be formed in the runner 9.

[0045] The flow divider 9 includes a flow divider channel 901 and a plastic inlet 902 that are connected. The cross-sectional area of the plastic inlet 902 is smaller than that of the flow divider channel 901. It can be understood that when the molten plastic is cooled, the plastic at the plastic inlet 902 is the connecting part between the product and the material head. Because the cross-sectional area of the plastic inlet 902 is smaller than that of the flow divider channel 901, there is less plastic at the plastic inlet 902. Therefore, the embodiment of the present disclosure can move the material head relative to the product under the drive of the material head ejector pin 802, thereby separating the material head from the product.

[0046] The product cavity 10 is a cavity for forming a product.

[0047] Combined with reference Figure 1 , Figure 4 and Figure 5 In some embodiments, the injection mold further includes: a fixed sleeve 11, which is used to connect the first ejector plate 5 and the rear mold core 402, and the fixed sleeve 11 is sleeved on the outer periphery of some product ejectors 7; wherein the second ejector plate 6 is spaced from the mold bottom plate 2.

[0048] The fixed sleeve 11 is used to fix the connection between the first ejector plate 5 and the rear mold core 402. The first ejector plate 5 and the second ejector plate 6 can move toward the mold bottom plate 2, driving the rear mold 4 and the fixed sleeve 11 to move toward the mold bottom plate 2. At this time, the product ejector 7 located in the fixed sleeve 11 does not move because the mold bottom plate 2, and the end of the product ejector 7 away from the mold bottom plate 2 will extend out of the rear mold 4, so that the product is ejected by the product ejector 7, and the product is separated from the rear mold 4, so that the injection mold can realize automatic acquisition of the product without manual removal of the product from the rear mold 4, which is beneficial to improving the injection molding efficiency.

[0049] Specifically, the injection mold has two states: mold closing and mold opening. Figure 1The figure shows the mold closing state, at which the front mold 3 and the rear mold 4 are in contact, and the molten plastic flows into the branch channel 9 and the product cavity 10 through the injection port 101 and the plastic inlet channel 301 in the front mold core 303. After the molten plastic is cooled, a connected product and a slug are formed. Afterwards, the rear mold 4 and the mold bottom plate 2 move to the first preset position in the direction away from the mold top plate 1. At this time, the rear mold 4 and the front mold 3 are separated, and the injection mold is in the mold opening state, and the product and the slug are located in the rear mold core 402. After the mold is opened, the ejector block 801 is spaced from the first ejector plate 5, so that there is a moving space between the ejector block 801 and the first ejector plate 5, and the ejector pin 802 can be driven to move toward the first ejector plate 5 by the ejector block 801, so that the slug contacted by the slug ejector pin 802 is separated from the rear mold 4, so that the product is separated from the slug. At this time, the product is still in the rear mold 4, and because the second ejector plate 6 is spaced from the mold bottom plate 2, the first ejector plate 5 and the second ejector plate 6 can move toward the mold bottom plate 2, driving the rear mold 4 and the fixed sleeve 11 to move toward the mold bottom plate 2. The product ejector pin 7 in the fixed sleeve 11 is stationary because the mold bottom plate 2 does not move at this time, and the end of the product ejector pin 7 away from the mold bottom plate 2 will extend out of the rear mold 4, so that the product is ejected by the product ejector pin 7, and the product is separated from the rear mold 4. In other words, after the mold is opened, the material head can be separated from the product by the material head ejector pin 802, and the product can be separated from the rear mold 4 by the product ejector pin 7, so that the injection mold of the embodiment of the present disclosure does not need to perform post-processing for separating the product from the material head, which can improve the injection molding efficiency, and can also realize automatic acquisition of products without manually taking the product out of the rear mold 4, which is conducive to improving the injection molding efficiency. Among them, the first preset position can be set according to actual conditions, and the embodiment of the present disclosure is not limited to this.

[0050] refer to Figure 5 In some embodiments, the distance between the ejector block 801 and the first ejector plate 5 may be smaller than the distance between the second ejector plate 6 and the mold bottom plate 2. Specifically, the distance between the ejector block 801 and the first ejector plate 5 is the first distance L1, and the distance between the second ejector plate 6 and the mold bottom plate 2 is the second distance L2. The second distance L1 is smaller than the first distance L2. The first distance L1 is to separate the material head from the product, and the second distance L2 is to separate the product from the rear mold 4. Usually, the volume of the connection between the material head and the product is small, so only a small first distance L1 is needed to separate the product from the material head, and the second distance L2 is relatively large, which can ensure that the product is ejected to separate the product from the rear mold 4.

[0051] In other embodiments, the distance between the ejector block and the first ejector plate may be equal to or greater than the distance between the second ejector plate and the mold bottom plate.

[0052] refer to Figure 1, in some embodiments, the injection mold further includes: a locating ring 12, which is located within the mold top plate 1 and outside the injection port 101, and is used to locate the injection port 101.

[0053] In some embodiments, referring to Figure 1 , the injection mold further includes a fixing rod 13, which is used to fixedly connect the mold top plate 1 and the front mold 3.

[0054] Combined with reference to Figure 1 and Figure 7 , in some embodiments, the injection mold further includes: a cooling water pipe 14, which is used to introduce cooling water, and the cooling water pipe 14 is located within the front mold 3 and the rear mold 4. The presence of the cooling water pipe 14 can help the molten plastic cool rapidly to form the product and the sprue, thus facilitating the improvement of the injection efficiency.

[0055] In some embodiments, referring to Figure 6 , the injection mold further includes a guide bushing 15 and a guide rod 16. The guide bushing 15 is arranged within the front mold base 302, the guide rod 16 penetrates through the rear mold base 401, and part of the guide rod 16 is located within the guide bushing 15. The guide bushing 15 and the guide rod 16 serve as guide columns for the injection mold in the closed mold state and the open mold state, avoiding damage to the injection mold caused by the misalignment of the rear mold 4 and the front mold 3 when the rear mold 4 moves forward towards the front mold 3 to restore the closed mold state after the mold is opened, which is beneficial to improving the reliability of the injection mold.

[0056] Combined with reference to Figure 2 and Figure 7 , in some embodiments, the injection mold further includes a connecting rod 17, which is used to fixedly connect the rear mold base 401 and the rear mold core 402.

[0057] Combined with reference 1 and Figure 6 , in some embodiments, the injection mold further includes a connecting column 18 and a helical spring 19. The connecting column 18 is used to connect the first ejector plate 5 and the rear mold 4, the helical spring 19 is sleeved outside the connecting column 18, the helical spring 19 is connected to the first ejector plate 5, and after the first ejector plate 5 moves towards the mold bottom plate 2, the presence of the helical spring 19 is beneficial to the reset of the first ejector plate 5.

[0058] Referring to Figure 4 , in some embodiments, the injection mold further includes a fixing block 20, which is used to fixedly connect the product ejector pin 7 and the mold bottom plate 2.

[0059] Referring to Figure 1 , in some embodiments, the injection mold further includes mold feet 21, which are used to connect the rear mold 4 and the mold bottom plate 2.

[0060] Combined with reference toFigure 1 and Figure 4 In some embodiments, the injection mold further includes support columns 22 and a second fixing rod 23. The support columns 22 are fixedly connected to the mold bottom plate 2 through the second fixing rod 23. The support columns 22 penetrate through the mold bottom plate 2, the first ejector plate 5, and the second ejector plate 6. The support columns 22 are used to support the first ejector plate 4 and the second ejector plate 6.

[0061] Continuing to refer to Figure 1 In some embodiments, the injection mold further includes a fixing member 24. The fixing member 24 is detachably connected to both the front mold 3 and the rear mold 4. The fixing member 24 is used to fixedly connect the front mold 3 and the rear mold 4. When the injection mold needs to be transported, the fixing member 24 is used to fixedly connect the front mold 3 and the rear mold 4 to prevent the separation of the front mold 3 and the rear mold 4 during transportation. During the use of the injection mold, the fixing member 24 can be removed so that the rear mold 4 can move relative to the front mold 3, enabling the injection mold to switch between the closed mold state and the open mold state to manufacture products.

[0062] In the injection mold of the above embodiments, there is a gap between the top block and the first ejector plate, providing a moving space between the top block and the first ejector plate. The top block can move towards the first ejector plate, driving the sprue ejector pin towards the first ejector plate, causing the sprue contacted by the sprue ejector pin to move relative to the rear mold and detach from the rear mold, separating the product from the sprue. Thus, post-process treatment for separating the product from the sprue is not required, improving the injection efficiency.

[0063] Correspondingly, another embodiment of the present disclosure further provides an injection molding device including the injection mold in any of the above embodiments. For the same or corresponding parts as the previous embodiment, reference may be made to the corresponding description of the previous embodiment, which will not be elaborated in detail below.

[0064] An injection molding device is also known as an injection molding machine or an injection machine. It is the main device for manufacturing various shaped plastic products from thermoplastic or thermosetting plastics using an injection mold.

[0065] The injection molding device may further include a driving mechanism. The driving mechanism is connected to the injection mold and is used to drive the rear mold of the injection mold to move, enabling the injection mold to switch between the closed mold state and the open mold state to manufacture products and sprues. It is also used to drive the top block to move so that the sprue ejector pin can eject the sprue, realizing the separation of the sprue from the product. It is further used to drive the rear mold to move so that the product ejector pin ejects the product, realizing the separation of the product from the rear mold.

[0066] Those of ordinary skill in the art can understand that the above embodiments are specific examples for implementing the present disclosure. In actual applications, various changes can be made in form and details without departing from the spirit and scope of the present disclosure. Any person skilled in the art can make various changes and modifications without departing from the spirit and scope of the present disclosure. Therefore, the protection scope of the present disclosure should be subject to the scope defined by the claims.

Claims

1. An injection mold, characterized in that, Comprising: Relatively arranged mold top plate and mold bottom plate, the mold top plate is provided with an injection port; A front mold, the front mold is connected to the mold top plate and is located on the side of the mold top plate facing the mold bottom plate. The front mold has a connected glue inlet runner, an upper shunt groove and a cavity, and the glue inlet runner is communicated with the injection port; A rear mold, the rear mold is located between the front mold and the mold bottom plate. The rear mold has a connected lower shunt groove and a core. The upper shunt groove and the lower shunt groove are used to form a shunt channel for forming a sprue, and the cavity and the core are used to form a product cavity for forming a product; Connected first ejector plate and second ejector plate, the first ejector plate is located between the rear mold and the second ejector plate, and the second ejector plate is connected to the mold bottom plate; A product ejector pin, one end of the product ejector pin is fixedly connected to the mold bottom plate, and the other end extends into the product cavity and contacts the product; A sprue ejecting assembly, the sprue ejecting assembly includes a connected ejector block and a sprue ejector pin. One end of the sprue ejector pin is connected to the ejector block, and the other end contacts the sprue. The ejector block penetrates through the mold bottom plate and part of the second ejector plate, and there is a gap between the ejector block and the first ejector plate.

2. The injection mold according to claim 1, characterized in that, The front mold includes: A front mold base and a front mold core located in the front mold base. The front mold base is fixedly connected to the mold top plate, and the front mold core has the connected glue inlet runner, the upper shunt groove and the cavity; The rear mold includes: A rear mold base and a rear mold core located in the rear mold base. The rear mold base is fixedly connected to the mold bottom plate, and the rear mold core has the connected lower shunt groove and the core.

3. The injection mold according to claim 2, characterized in that, The injection mold further includes: A fixed sleeve, the fixed sleeve is used to connect the first ejector plate and the rear mold core, and the fixed sleeve is sleeved on the outer periphery of part of the product ejector pin; Wherein, there is a gap between the second ejector plate and the mold bottom plate.

4. The injection mold according to claim 3, characterized in that, The distance between the ejector block and the first ejector plate is less than the distance between the second ejector plate and the mold bottom plate.

5. The injection mold according to claim 2, characterized in that, The injection mold further includes: A guide sleeve, the guide sleeve is arranged in the front mold base; A guide rod, the guide rod penetrates through the rear mold base, and part of the guide rod is located in the guide sleeve.

6. The injection mold according to claim 1, characterized in that, The injection mold further includes: A locating ring, the locating ring is located in the mold top plate and is located on the outer periphery of the injection port for positioning the injection port.

7. The injection mold according to claim 1, characterized in that, The injection mold further includes: Mold feet, the mold feet are used to connect the rear mold and the mold bottom plate.

8. The injection mold according to claim 1, characterized in that, The injection mold further includes: A fixing member, the fixing member is detachably connected to both the front mold and the rear mold, and the fixing member is used to fixedly connect the front mold and the rear mold.

9. The injection mold according to claim 1, characterized in that, The injection mold further includes: A cooling water pipe, the cooling water pipe is used to introduce cooling water, and the cooling water pipe is located in the front mold and the rear mold.

10. An injection molding device, characterized in that, Including the injection mold according to any one of claims 1-9.

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