Automatic forming injection mold

Abstract

The utility model belongs to the technical field of molds, and particularly relates to an automatic forming injection mold which comprises a base, an ejection mechanism, a guide mechanism, a mold core, a lower mold base, an upper mold base, an ejection plate and a sprue bush, the mold core is arranged between the lower mold base and the upper mold base, the ejection plate is connected to the top side of the upper mold base, and the sprue bush is connected to the ejection plate and extends into the mold core. The push plate is movably arranged on the base, and the ejector pin is connected to the push plate and penetrates through the mold core. The guide mechanism comprises a guide rod and a guide block, the guide rod movably penetrates through the guide block and abuts against the die core, and the guide block is connected to the lower die base. According to the automatic forming injection mold, after a product in the mold core is cooled and formed, the push plate pushes the guide rod to move upwards, the guide rod pushes the mold core and the upper mold base to move upwards, the demolding space is increased, meanwhile, the push plate drives the ejector pin to move upwards, the ejector pin ejects out the cooled and formed product, the ejector pin is not prone to being broken, product demolding is easier and more convenient, the demolding time is shortened, and the production efficiency is improved. The use is more convenient, and the product demolding efficiency is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of molds, and particularly relates to an automatic forming injection mold. Background Art

[0002] In the production of injection molds in the prior art, for some products with large curvature or bending, during the ejection and demolding process of plastic workpieces, they are easily stuck on the mold, resulting in the workpieces being unable to fall off automatically, the workpieces not being able to completely separate from the mold or the workpieces not being separated by the ejection mechanism. Moreover, using small ejector pins is prone to breakage, leading to difficult mold release, increasing the demolding time, making it inconvenient to use, and affecting the demolding efficiency of the products. Summary of the Utility Model

[0003] The purpose of the utility model is to provide an automatic forming injection mold, aiming to solve the technical problems in the prior art that using small ejector pins is prone to breakage, resulting in difficult mold release, increasing the demolding time, making it inconvenient to use, and affecting the forming efficiency of the products.

[0004] To achieve the above purpose, the automatic forming injection mold provided by the embodiment of the utility model includes a base, an ejection mechanism, a guiding mechanism, a mold core, a lower mold base, an upper mold base, a top plate and a sprue bushing. The ejection mechanism is arranged on the base and below the mold core. The guiding mechanism is arranged on the ejection mechanism and abuts against the mold core. The mold core is arranged between the lower mold base and the upper mold base. The upper mold base is arranged on the top side of the lower mold base. The top plate is connected to the top side of the upper mold base. The sprue bushing is connected to the top plate and extends into the mold core;

[0005] The ejection mechanism includes a push plate and ejector pins. The push plate is movably arranged on the base. The ejector pins are connected to the push plate and penetrate through the mold core;

[0006] The guiding mechanism includes guide rods and guide blocks. The guide rods are movably penetrated through the guide blocks and abut against the mold core. The guide blocks are connected to the lower mold base.

[0007] As an optional scheme of the utility model, a plurality of ejector pins are provided and are evenly and fixedly connected to the push plate. The ejector pins are arranged below the mold core.

[0008] As an optional scheme of the utility model, four guiding mechanisms are provided and are respectively arranged at the four corners of the mold core. The four guide rods eject the mold core simultaneously.

[0009] As an optional scheme of the utility model, one end of the guide rod is fixedly connected to the push plate, and the other end abuts against the mold core. One end of the guide rod is inclined with respect to the push plate, and the inclination angle between the guide rod and the push plate is 60 - 80°.

[0010] As an alternative solution of the present utility model, guide posts are provided on the base. There are four guide posts, all fixedly connected to the base. One end of the guide post is connected to the base, and the other end passes through the lower die holder and abuts against the upper die holder.

[0011] As an alternative solution of the present utility model, water-cooling pipes are provided between the lower die holder and the upper die holder. There are multiple water-cooling pipes, which are arranged around the mold core.

[0012] One or more of the above technical solutions in the automatic molding injection mold provided by the embodiment of the present utility model have at least one of the following technical effects:

[0013] The automatic molding injection mold provided by the present application includes a base, an ejection mechanism, a guiding mechanism, a mold core, a lower die holder, an upper die holder, a top plate and a sprue bushing. After the product in the mold core is cooled and formed, the push plate pushes the guide rod upward, the guide rod pushes the mold core and the upper die holder upward, increasing the demolding space. At the same time, the push plate drives the ejector pin upward, and the ejector pin ejects the cooled and formed product. The ejector pin is not easy to break, the product demolding is more convenient, the demolding time is reduced, the use is more convenient, and the product demolding efficiency is improved. Description of the Drawings

[0014] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model, the following will briefly introduce the drawings required for use in the embodiments or the description of the prior art. Obviously, the following drawings are only some embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0015] Figure 1 It is a schematic structural diagram of the automatic molding injection mold provided by the embodiment of the present utility model.

[0016] Figure 2 It is a schematic structural diagram of the automatic molding injection mold provided by the embodiment of the present utility model after omitting the base, the lower die holder, the upper die holder and the top plate.

[0017] Figure 3 For Figure 2 The partial enlarged view of A in

[0018] Among them, the reference numerals in the drawings are as follows:

[0019] 1. Base; 2. Ejection mechanism; 3. Guiding mechanism; 4. Mold core; 5. Lower die holder; 6. Upper die holder; 7. Top plate; 8. Sprue bushing; 9. Water-cooling pipe;

[0020] 11. Guide post;

[0021] 21. Push plate; 22. Ejector pin;

[0022] 31. Guide rod; 32. Guide block. Detailed implementation manner

[0023] The embodiments of the present utility model will be described in detail below. The examples of the embodiments are shown in the drawings, where the same or similar reference numerals denote the same or similar elements or elements with the same or similar functions throughout. The embodiments described below with reference to the drawings are exemplary and are intended to explain the embodiments of the present utility model, and should not be construed as a limitation to the present utility model.

[0024] In the description of the embodiments of the present utility model, it should be understood that the orientation or positional relationship indicated by the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the embodiments of the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation to the present utility model.

[0025] In addition, the terms "first" and "second" are only used for descriptive purposes and should not be construed as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the embodiments of the present utility model, the meaning of "plurality" is two or more unless otherwise specifically defined.

[0026] In the embodiments of the present utility model, unless otherwise clearly defined and limited, the terms "installed", "connected", "connected to", "fixed", etc. should be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or integrated; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium, and it may be the internal communication of two elements or the interaction relationship between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the embodiments of the present utility model can be understood according to specific circumstances.

[0027] In one embodiment of the present utility model, as Figures 1 to 3As shown in the figure, an automatic forming injection mold is provided, which includes a base 1, an ejection mechanism 2, a guiding mechanism 3, a mold core 4, a lower mold base 5, an upper mold base 6, a top plate 7 and a sprue bushing 8. The ejection mechanism 2 is arranged on the base 1 and below the mold core 4. The guiding mechanism 3 is arranged on the ejection mechanism 2 and abuts against the mold core 4. The mold core 4 is arranged between the lower mold base 5 and the upper mold base 6. The upper mold base 6 is arranged on the top side of the lower mold base 5. The top plate 7 is fixedly connected to the top side of the upper mold base 6. The sprue bushing 8 is fixedly connected to the top plate 7 and extends into the mold core 4. The molten material enters from the sprue bushing 8 and flows to the mold core 4 for cooling and forming. The ejection mechanism 2 includes a push plate 21 and ejector pins 22. The push plate 21 is movably arranged on the base 1. The ejector pins 22 are fixedly connected to the push plate 21 and movably penetrate through the mold core 4 for ejecting the product in the mold core 4. The guiding mechanism 3 includes guide rods 31 and guide blocks 32. The guide rods 31 movably penetrate through the guide blocks 32 and abut against the mold core 4. The guide blocks 32 are connected to the lower mold base 5. The guide rods 31 are used to eject the mold core 4 and the upper mold base 6 to increase the demolding space and facilitate demolding. For the automatic forming injection mold provided in this application, after the product in the mold core 4 is cooled and formed, the push plate 21 pushes the guide rods 31 to move upward. The guide rods 31 push the mold core 4 and the upper mold base 6 to move upward to increase the demolding space. At the same time, the push plate 21 drives the ejector pins 22 to move upward. The ejector pins 22 eject the cooled and formed product. The ejector pins 22 are not easy to break. The product demolding is more convenient, the demolding time is reduced, the use is more convenient, and the product demolding efficiency is improved.

[0028] In another embodiment of the present invention, a plurality of ejector pins 22 of the automatic forming injection mold are provided and are uniformly fixedly connected to the push plate 21. The ejector pins 22 are arranged below the mold core 4. By providing a plurality of ejector pins 22, it is convenient to eject the product.

[0029] In another embodiment of the present invention, four guiding mechanisms 3 of the automatic forming injection mold are provided and are respectively arranged at the four corners of the mold core 4. The four guide rods 31 eject the mold core 4 at the same time, improving the stability.

[0030] In another embodiment of the present invention, one end of the guide rod 31 of the automatic forming injection mold is fixedly connected to the push plate 21, and the other end abuts against the mold core 4. One end of the guide rod 31 is inclined to the push plate 21, and the inclination angle between the guide rod 31 and the push plate 21 is 60 - 80°, preferably 75°.

[0031] In another embodiment of the present invention, guide columns 11 are provided on the base 1 of the automatic forming injection mold. There are four guide columns 11, all of which are fixedly connected to the base 1. One end of the guide column 11 is connected to the base 1, and the other end penetrates through the lower mold base 5 and abuts against the upper mold base 6. The upper mold base 6 moves along the guide columns 11, improving the smoothness.

[0032] In another embodiment of the present utility model, a water cooling pipe 9 is provided between the lower die base 5 and the upper die base 6 of the automatic forming injection mold. A plurality of water cooling pipes 9 are provided and are arranged around the mold core 4. The water cooling pipe 9 is used to quickly take away the heat in the mold core 4, improving the product cooling and forming efficiency.

[0033] For the automatic forming injection mold provided by this application, after the product in the mold core 4 is cooled and formed, the push plate 21 pushes the guide rod 31 to move upward. The guide rod 31 pushes the mold core 4 and the upper die base 6 to move upward, increasing the demolding space. At the same time, the push plate 21 drives the ejector pin 22 to move upward. The ejector pin 22 ejects the cooled and formed product. The ejector pin 22 is not easily broken, the product demolding is more convenient, the demolding time is reduced, it is more convenient to use, and the product demolding efficiency is improved.

[0034] The above are only the preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent replacements, and improvements made within the spirit and principle of the present utility model shall be included in the protection scope of the present utility model.

Claims

1. An automatic molding injection mold, characterized in that, It includes a base, an ejection mechanism, a guiding mechanism, a mold core, a lower mold base, an upper mold base, a top plate and a sprue bushing. The ejection mechanism is arranged on the base and below the mold core. The guiding mechanism is arranged on the ejection mechanism and abuts against the mold core. The mold core is arranged between the lower mold base and the upper mold base. The upper mold base is arranged on the top side of the lower mold base. The top plate is connected to the top side of the upper mold base. The sprue bushing is connected to the top plate and extends into the mold core; The ejection mechanism includes a push plate and ejector pins. The push plate is movably arranged on the base. The ejector pins are connected to the push plate and penetrate through the mold core; The guiding mechanism includes guide rods and guide blocks. The guide rods are movably inserted through the guide blocks and abut against the mold core. The guide blocks are connected to the lower mold base.

2. The automatic forming injection mold according to claim 1, characterized in that, There are multiple ejector pins, which are evenly and fixedly connected to the push plate. The ejector pins are arranged below the mold core.

3. An automatic molding injection mold according to claim 1, characterized in that, There are four guiding mechanisms, which are respectively arranged at the four corners of the mold core. The four guide rods eject the mold core simultaneously.

4. An automatic molding injection mold according to claim 1, characterized in that, One end of the guide rod is fixedly connected to the push plate, and the other end abuts against the mold core. One end of the guide rod is inclined with respect to the push plate, and the inclination angle between the guide rod and the push plate is 60-80°.

5. An automatic molding injection mold according to claim 1, characterized in that, There are guide columns on the base. There are four guide columns, all of which are fixedly connected to the base. One end of the guide column is connected to the base, and the other end penetrates through the lower mold base and abuts against the upper mold base.

6. An automatic forming injection mold according to claim 1, characterized in that, There are water cooling pipes between the lower mold base and the upper mold base. There are multiple water cooling pipes, which are arranged around the mold core.

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