Injection mold capable of automatically ejecting materials

Abstract

The utility model relates to the technical field of injection molds, in particular to an automatic ejection injection mold which comprises an upper forming mold and a lower forming mold arranged under the upper forming mold, a mold seat matched with the lower forming mold is fixedly mounted under the lower forming mold, a double-plate seat is mounted in the mold seat and fixedly connected with the mold seat, and the double-plate seat is fixedly connected with the mold seat. Positioning vertical shells are installed at the four corners of the upper end face of the double-plate base, the lower ends of the positioning vertical shells are clamped and fixed to the double-plate base, and lifting sliding rods are installed at the upper ends of the positioning vertical shells in a sliding mode. The double-plate base is arranged between the forming lower die and the die base, the positioning vertical shell is installed through the double-plate base, the lifting sliding rod can be stably installed through the positioning vertical shell during use conveniently, it is guaranteed that an ejector rod set is stably installed through the lifting sliding rod, and therefore stable and automatic ejection use of products in the die is achieved; meanwhile, in the using process, adsorption locking can be achieved through an electromagnet.

Description

Technical Field

[0001] This utility model relates to the field of injection mold technology, and in particular to an automatic ejection injection mold. Background Technology

[0002] In modern manufacturing, injection molding is widely used in the production of various plastic products due to its high efficiency and precision. As the core equipment in the injection molding process, the performance of the injection mold directly affects the quality and production efficiency of the plastic products. For many small and structurally complex plastic products, such as plastic casings for electronic devices and plastic parts for precision instruments, it is necessary to smoothly remove the molded product from the mold after injection molding.

[0003] Regarding the aforementioned technologies, it has been found that traditional injection molds mostly employ manual ejection. Workers need to use simple tools to eject the product from the mold after injection molding. This method is not only inefficient but also prone to damage to the product due to improper operation, affecting its appearance and performance. Manual ejection requires workers to constantly monitor the injection process, increasing labor costs and intensity.

[0004] With technological advancements, simple mechanical ejection devices have been installed in injection molds. These devices typically transmit power to the ejector pin via mechanical transmission mechanisms, such as gears and racks, to achieve the ejection action. However, these mechanical ejection devices are complex in structure, difficult to install and debug, and their mechanical parts are prone to wear during long-term use, leading to decreased ejection accuracy and affecting the demolding effect of the product. Utility Model Content

[0005] This invention solves the problems in related technologies and proposes an automatic ejection injection mold.

[0006] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution:

[0007] An automatic ejector injection mold includes an upper molding mold and a lower molding mold disposed directly below the upper molding mold. A matching mold base is fixedly installed below the lower molding mold. A double-plate base is installed in the mold base and is fixedly connected to the mold base. Positioning vertical shells are installed on the four corners of the upper surface of the double-plate base. The lower end of the positioning vertical shell is engaged and fixedly fixed with the double-plate base. A lifting slide rod is slidably installed on the upper end of the positioning vertical shell. A support spring for supporting the lifting slide rod is also fixedly installed on the upper surface of the positioning vertical shell. An ejector rod assembly is fixedly installed at the head of the lifting slide rod.

[0008] As a preferred embodiment, the double plate base includes a bottom plate and a top plate, the top plate being mounted on the upper surface of the bottom plate and fixedly connected to the bottom plate.

[0009] As a preferred embodiment, the four corners of the upper surface of the base plate are provided with matching slots, and the top plate is provided with mounting slots corresponding to the matching slots.

[0010] As a preferred embodiment, the positioning vertical shell includes a base and a mounting shell, wherein the mounting shell is mounted on the upper end face of the base and is fixedly connected to the base.

[0011] As a preferred embodiment, the housing is provided with external locking blocks on both sides corresponding to the mounting slots, and an electromagnet is fixedly installed on the upper surface of the housing. Both the external locking blocks and the electromagnet are fixedly connected to the housing.

[0012] As a preferred embodiment, the lifting slide bar includes a main rod, a locking nut, and a metal seat that cooperates with the electromagnet. The main rod is slidably mounted on the head of the mounting housing, the locking nut is threadedly connected to the head of the main rod, and the metal seat is fixedly mounted on the lower end face of the main rod.

[0013] As a preferred embodiment, the ejector rod assembly includes a synchronizing plate seat and an ejector rod. One end of the synchronizing plate seat is fixedly installed at the head of the main rod, and the ejector rod is disposed on the upper end face of the synchronizing plate seat and is fixedly connected to the synchronizing plate seat.

[0014] Compared with the prior art, the beneficial effects of this utility model are as follows: This application sets a double-plate seat between the lower mold and the mold base, and uses the double-plate seat to install and position the vertical shell. In convenient use, the vertical shell can be used to stably install the lifting slide rod, ensuring that the ejector rod assembly can be stably installed to achieve stable automatic ejection of the product in the mold. At the same time, during use, it can be attracted and locked by an electromagnet, and then automatically ejected when the magnetic attraction is released with the help of the support spring. It is convenient and stable to use. The connection between each component is tight and the structure is stable, which can effectively improve the efficiency of injection molding production and product quality. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0016] Figure 2 This is a perspective view of the double-plate base, positioning vertical shell, lifting slide rod, and ejector rod assembly in an embodiment of this utility model.

[0017] Figure 3 This is a perspective view of the positioning vertical shell, lifting slide bar and ejector rod assembly in an embodiment of this utility model.

[0018] Figure 4 yes Figure 3 A front view of the device shown;

[0019] Figure 5This is a perspective view of the double-plate base in an embodiment of this utility model.

[0020] In the diagram: 1. Upper forming mold; 2. Lower forming mold; 3. Mold base; 4. Double plate base; 41. Base plate; 411. Mating slot; 42. Top plate; 421. Mounting slot; 5. Positioning vertical shell; 50. Support spring; 51. Shell base; 511. Outer locking block; 512. Electromagnet; 52. Mounting shell; 6. Lifting slide rod; 61. Main rod; 62. Locking nut; 63. Metal base; 7. Ejector rod assembly; 71. Synchronous plate base; 72. Ejector rod. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. The following description of at least one exemplary embodiment is merely illustrative and is in no way intended to limit the present utility model or its application or use. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the scope of protection of the present utility model.

[0022] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this application. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0023] Unless otherwise specifically stated, the relative arrangement, numerical expressions, and values ​​of the components and steps described in these embodiments do not limit the scope of this invention. It should also be understood that, for ease of description, the dimensions of the various parts shown in the drawings are not drawn to actual scale. Techniques, methods, and devices known to those skilled in the art may not be discussed in detail, but where appropriate, such techniques, methods, and devices should be considered part of the specification. In all examples shown and discussed herein, any specific values ​​should be interpreted as merely exemplary and not as limitations. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters in the following figures denote similar items; therefore, once an item is defined in one figure, it need not be further discussed in subsequent figures.

[0024] In the description of this utility model, it should be understood that the directional terms such as "front, back, up, down, left, right", "horizontal, vertical, horizontal" and "top, bottom" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description. Unless otherwise stated, these directional terms do not indicate or imply that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on the scope of protection of this utility model. The directional terms "inner" and "outer" refer to the inner and outer contours relative to the outline of each component itself.

[0025] For ease of description, spatial relative terms such as "above," "over," "on the upper surface of," "above," etc., are used herein to describe the spatial positional relationship of a device or feature as shown in the figures to other devices or features. It should be understood that spatial relative terms are intended to encompass different orientations in use or operation beyond the orientation of the device as described in the figures. For example, if the device in the figures were inverted, a device described as "above" or "above" other devices or structures would subsequently be positioned as "below" or "under" other devices or structures. Thus, the exemplary term "above" can include both "above" and "below." The device may also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatial relative descriptions used herein will be interpreted accordingly.

[0026] Furthermore, it should be noted that the use of terms such as "first" and "second" to define components is merely for the purpose of distinguishing the corresponding components. Unless otherwise stated, the above terms have no special meaning and therefore cannot be construed as limiting the scope of protection of this utility model.

[0027] Reference Figure 1 , Figure 2 and Figure 3As shown, an automatic ejection injection mold includes an upper molding mold 1 and a lower molding mold 2 located directly below the upper molding mold 1. A matching mold base 3 is fixedly installed below the lower molding mold 2. A double-plate base 4 is installed in the mold base 3 and is fixedly connected to the mold base 3. Positioning vertical shells 5 are installed on the four corners of the upper surface of the double-plate base 4. The lower end of the positioning vertical shell 5 is engaged and fixed with the double-plate base 4, and a lifting slide rod 6 is slidably installed on the upper end of the positioning vertical shell 5. A support spring 50 supporting the lifting slide rod 6 is also fixedly installed on the upper surface of the positioning vertical shell 5. An ejector rod assembly 7 is fixedly installed on the head of the lifting slide rod 6. By setting the mold base 3, double-plate base 4, positioning vertical shell 5, lifting slide rod 6, and ejector rod assembly 7 below the lower molding mold 2, the automatic ejection function of the injection mold is realized. The cooperation between the positioning vertical shell 5 and the lifting slide bar 6 ensures the stability of the lifting of the ejector rod assembly 7, and the support spring 50 can provide the support force for automatic ejection, ensuring stable ejection of the mold and product.

[0028] Reference Figure 5 As shown, the double-plate base 4 includes a base plate 41 and a top plate 42. The top plate 42 is mounted on the upper surface of the base plate 41 and is fixedly connected to the base plate 41. The double-plate base 4's structure of base plate 41 and top plate 42 facilitates installation and disassembly, increases the structural strength of the double-plate base 4, improves the stability of the entire mold, and also facilitates the stable insertion and locking of the positioning vertical shell 5. The four corners of the upper surface of the base plate 41 are provided with mating slots 411, and the top plate 42 is provided with mounting slots 421 corresponding to the mating slots 411. The mating slots 411 of the base plate 41 and the mounting slots 421 of the top plate 42 correspond to each other, facilitating the installation of the positioning vertical shell 5, ensuring the accuracy of the positioning vertical shell 5's installation position, and thus guaranteeing the ejection accuracy of the ejector rod assembly 7.

[0029] Reference Figure 2As shown, the positioning vertical shell 5 includes a base 51 and a mounting shell 52. The mounting shell 52 is installed on the upper surface of the base 51 and is fixedly connected to the base 51. The positioning vertical shell 5 adopts the structure of the base 51 and the mounting shell 52, which facilitates processing and assembly. At the same time, the mounting shell 52 ensures the stable installation and use of the lifting slide rod 6. The base 51 has external locking blocks 511 on both sides corresponding to the mounting groove 421, and an electromagnet 512 is also fixedly installed on the upper surface of the base 51. Both the external locking blocks 511 and the electromagnet 512 are fixedly connected to the base 51. The external locking blocks 511 on both sides of the base 51 cooperate with the mounting groove 421, further enhancing the connection stability between the positioning vertical shell 5 and the double plate base 4. During installation, the external locking blocks 511 are inserted into the mating slots 411 through the mounting groove 421, and then locked by rotation. The electromagnet 512 is designed to attract the metal seat 63 of the lifting slide rod 6 during the injection molding process, keeping the ejector rod group 7 in a low position and preventing accidental ejection. When ejection is required, the electromagnet 512 is de-energized and then magnetically attracted, ensuring that the lifting slide rod 6 is automatically ejected under the action of the support spring 50.

[0030] Reference Figure 4 As shown, the lifting slide bar 6 includes a main rod 61, a locking nut 62, and a metal seat 63 that cooperates with the electromagnet 512. The main rod 61 is slidably mounted on the head of the mounting shell 52, the locking nut 62 is threadedly connected to the head of the main rod 61, and the metal seat 63 is fixedly mounted on the lower end face of the main rod 61. The structural design of the main rod 61, locking nut 62, and metal seat 63 of the lifting slide bar 6 facilitates connection and adjustment with the positioning vertical shell 5 and the ejector rod assembly 7. During installation, the ejector rod assembly 7 is clamped and locked by two sets of locking nuts 62. The metal seat 63 cooperates with the electromagnet 512 to realize the automatic control of the ejector rod assembly 7.

[0031] Reference Figure 3 As shown, the ejector rod assembly 7 includes a synchronization plate seat 71 and ejector rods 72. One end of the synchronization plate seat 71 is fixedly installed on the head of the main rod part 61, and the ejector rods 72 are disposed on the upper end face of the synchronization plate seat 71 and are fixedly connected to the synchronization plate seat 71. The structure of the synchronization plate seat 71 and ejector rods 72 of the ejector rod assembly 7 ensures that multiple ejector rods 72 can be ejected synchronously, so that the product is subjected to uniform force and avoids problems such as deformation of the product during the ejection process. The angle of the synchronization plate seat 71 on the lifting slide rod 6 can be adjusted so that the ejector rods 72 can be better arranged according to the cavity structure of the lower mold 2.

[0032] In this embodiment, during actual injection molding, the upper mold 1 and the lower mold 2 are closed, and the electromagnet 512 is activated. The electromagnet 512 attracts the metal seat 63 of the lifting slide rod 6, keeping the ejector rod assembly 7 in a low position. The heated and molten plastic is injected into the mold cavity under high pressure by the injection molding machine, and after cooling and solidification, a product is formed. After injection molding is completed, the upper mold 1 is opened, the electromagnet 512 is closed, and the elastic force of the support spring 50 pushes the lifting slide rod 6 upward. The lifting slide rod 6 drives the ejector rod assembly 7 upward, and the ejector rod 72 ejects the molded product from the lower mold 2. After the product is ejected, the electromagnet 512 is activated to attract the lifting slide rod 6 to its lower end, returning the ejector rod assembly 7 to a low position, preparing for the next injection molding.

[0033] The above are preferred embodiments of this utility model. Those skilled in the art can make changes and modifications to the above embodiments. Therefore, this utility model is not limited to the specific embodiments described above. Any obvious improvements, substitutions or modifications made by those skilled in the art based on this utility model shall fall within the protection scope of this utility model.

Claims

1. An injection mold with automatic ejection, comprising an upper molding mold (1) and a lower molding mold (2) disposed directly below the upper molding mold (1), characterized in that: A matching mold base (3) is fixedly installed below the forming lower mold (2). A double plate base (4) is installed in the mold base (3). The double plate base (4) is fixedly connected to the mold base (3). A positioning vertical shell (5) is installed on the four corners of the upper end face of the double plate base (4). The lower end of the positioning vertical shell (5) is engaged and fixed with the double plate base (4). A lifting slide rod (6) is slidably installed on the upper end of the positioning vertical shell (5). A support spring (50) supporting the lifting slide rod (6) is also fixedly installed on the upper end face of the positioning vertical shell (5). An ejector rod assembly (7) is fixedly installed on the head of the lifting slide rod (6).

2. The injection mold with automatic ejection according to claim 1, characterized in that: The double plate base (4) includes a bottom plate (41) and a top plate (42). The top plate (42) is installed on the upper end surface of the bottom plate (41) and the top plate (42) is fixedly connected to the bottom plate (41).

3. The injection mold with automatic ejection according to claim 2, characterized in that: The bottom plate (41) has four corners of the upper surface with a matching slot (411), and the top plate (42) has a mounting slot (421) corresponding to the matching slot (411).

4. The injection mold with automatic ejection according to claim 3, characterized in that: The positioning vertical shell (5) includes a shell base (51) and a mounting shell (52). The mounting shell (52) is mounted on the upper end face of the shell base (51) and is fixedly connected to the shell base (51).

5. The injection mold with automatic ejection according to claim 4, characterized in that: The housing (51) has external locking blocks (511) on both sides corresponding to the mounting groove (421), and an electromagnet (512) is fixedly installed on the upper surface of the housing (51). The external locking blocks (511) and the electromagnet (512) are both fixedly connected to the housing (51).

6. The injection mold with automatic ejection according to claim 5, characterized in that: The lifting slide bar (6) includes a main rod (61), a locking nut (62), and a metal seat (63) that cooperates with the electromagnet (512). The main rod (61) is slidably mounted on the head of the mounting shell (52), the locking nut (62) is threadedly connected to the head of the main rod (61), and the metal seat (63) is fixedly mounted on the lower end face of the main rod (61).

7. An injection mold with automatic ejection according to claim 6, characterized in that: The ejector rod assembly (7) includes a synchronizing plate seat (71) and an ejector rod (72). One end of the synchronizing plate seat (71) is fixedly installed at the head of the main rod part (61). The ejector rod (72) is located on the upper end face of the synchronizing plate seat (71) and is fixedly connected to the synchronizing plate seat (71).

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