Jacking-in type embedded part injection mold

Abstract

The utility model discloses an ejection type embedded part injection mold which comprises a fixed mold and a movable mold, a fixed mold core is embedded in the fixed mold, a movable mold core corresponding to the fixed mold core is embedded in the movable mold, an injection mold cavity is formed between the fixed mold core and the movable mold core, the fixed mold core comprises an embedded plate and a mold cavity plate, the embedded plate is located on the inner side of the mold cavity plate, and the movable mold core is located on the outer side of the mold cavity plate. An ejector pin is arranged on the pre-buried plate, a pre-buried hole corresponding to the ejector pin is formed in the mold cavity plate, the top of the ejector pin is inserted into the pre-buried hole, the pre-buried hole is communicated with the injection mold cavity, and an elastic piece is further arranged between the pre-buried plate and the mold cavity plate. According to the ejection type embedded part injection mold disclosed by the utility model, the ejector pin is used for ejecting the embedded part in the embedded hole to partially eject the embedded part into the injection mold cavity so as to realize injection molding of the embedded part, and the mode of partially ejecting the embedded part is adopted, so that the injection mold is simple in overall structure, the injection molding position of the embedded part is accurate, and the injection molding efficiency is improved. And the embedded part can be effectively prevented from being loosened from the embedded hole, and the qualification rate of injection molding products is ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of injection molds, and particularly relates to an injection mold for a top-in type embedded part. Background Art

[0002] An injection mold is a tool for producing plastic products and also a tool for endowing plastic products with a complete structure and precise dimensions. Injection molding is a processing method used in mass production of some parts with complex shapes. Specifically, it means injecting the heat-melted plastic into the mold cavity under high pressure by an injection molding machine, and after cooling and solidifying, a formed product is obtained.

[0003] Currently, when some injection products are being injection molded, metal parts need to be embedded at the set positions of the injection products to improve the performance of the injection products and meet the usage requirements of the injection products. However, in the existing injection molds, it is difficult to fix the embedded parts, and the embedded parts are prone to looseness, resulting in a low qualified rate of the injection products and a high cost. During mass production, the cost cannot be effectively controlled. Summary of the Utility Model

[0004] The purpose of the utility model is to provide a top-in type embedded part injection mold with a simple structure that can effectively prevent the embedded part from loosening.

[0005] To solve the above technical problems, the utility model can adopt the following technical solutions:

[0006] A top-in type embedded part injection mold includes a fixed mold and a movable mold. The fixed mold is embedded with a fixed mold core, and the movable mold is embedded with a movable mold core corresponding to the fixed mold core. An injection mold cavity is formed between the fixed mold core and the movable mold core. The fixed mold core includes an embedded plate and a mold cavity plate. The embedded plate is located inside the mold cavity plate, and ejector pins are arranged on the embedded plate. The mold cavity plate is provided with embedded holes corresponding to the ejector pins. The top of the ejector pin is inserted into the embedded hole, and the embedded hole is communicated with the injection mold cavity. An elastic member is further arranged between the embedded plate and the mold cavity plate.

[0007] In one embodiment, the ejector pins are made of magnetic material.

[0008] In one embodiment, the embedded plate and the mold cavity plate are limited and connected by bolts.

[0009] In one embodiment, the fixed mold includes a fixed mold plate and a fixed mold mounting plate. The fixed mold plate is fixedly connected to the fixed mold mounting plate, and the fixed mold plate is provided with a groove. The embedded plate and the mold cavity plate are sequentially embedded in the groove from the inside to the outside.

[0010] In one embodiment, the fixed mold mounting plate is provided with a gate communicated with the injection mold cavity.

[0011] In one of the embodiments, the movable mold includes a movable mold plate, a movable mold foot and a movable mold mounting plate. Both sides of the movable mold plate are fixedly connected to the movable mold mounting plate through the movable mold foot, and the movable mold core is embedded in the movable mold plate.

[0012] In one of the embodiments, a demolding top plate is provided between the movable mold plate and the movable mold mounting plate, the demolding top plate is located between the movable mold feet on both sides, and a demolding ejector pin is provided on the demolding top plate, and the top of the demolding ejector pin is located in the injection mold cavity.

[0013] In one embodiment, the elastic member is a compression spring. Beneficial Effects

[0014] The utility model discloses a top-entry embedded part injection mold, by embedding an embedded plate and a cavity plate in a fixed mold, arranging an ejector pin on the embedded plate, and the cavity plate is provided with an embedded hole corresponding to the ejector pin, and an elastic part is arranged between the embedded plate and the cavity plate. When injection molding is performed, the embedded part is first placed in the embedded hole, and then the movable mold and the fixed mold are molded together. During the mold closing process, the movable mold core of the movable mold will press against the fixed mold core of the fixed mold, so that the cavity plate moves toward the embedded plate and squeezes the elastic part, and the ejector pin will support the embedded part in the embedded hole, and push the embedded part part into the injection mold cavity as the cavity plate moves. At this time, liquid is injected to realize the injection molding of the injection molded product. The method of partially pushing the embedded part can make the overall structure of the injection mold simple, and the embedded part is positioned through the embedded hole, so that the injection position of the embedded part is accurate, and the embedded part can be effectively prevented from loosening from the embedded hole, thereby ensuring the qualified rate of the injection molded product. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic diagram of the structure of the top-entry embedded part injection mold of the utility model;

[0016] Figure 2 It is a cross-sectional view of the top-entry embedded part injection mold of the utility model;

[0017] Figure 3 It is a schematic diagram of the fixed mold structure of the top-entry embedded part injection mold of the utility model;

[0018] Figure 4 This is a cross-sectional view of the fixed mold core of the top-entry embedded part injection mold of the utility model Figure 1 ;

[0019] Figure 5 This is a cross-sectional view of the fixed mold core of the top-entry embedded part injection mold of the utility model Figure 2 ;

[0020] Figure 6 The utility model is a schematic diagram of the movable mold structure of the top-entry embedded parts injection mold.

[0021] Description of the Reference Numerals

[0022] 100, fixed mold; 110, fixed mold plate; 120, fixed mold mounting plate; 121, gate;

[0023] 200, moving mold; 210, moving mold plate; 220, moving mold feet; 230, moving mold mounting plate; 240, ejection top plate;

[0024] 300, fixed mold core; 310, embedded plate; 311, ejector pin; 320, cavity plate; 321, embedded hole; 330, elastic member; 340, bolt;

[0025] 400, moving mold core;

[0026] 500, injection mold cavity;

[0027] 10, embedded part. Detailed Embodiment

[0028] In order to make the above - mentioned objects, features and advantages of the present utility model more obvious and understandable, the following will describe the detailed embodiment of the present utility model with reference to the accompanying drawings. Many specific details are set forth in the following description in order to fully understand the present utility model. However, the present utility model can be implemented in many other ways different from those described herein. Those skilled in the art can make similar improvements without departing from the connotation of the present utility model. Therefore, the present utility model is not limited by the specific embodiments disclosed below.

[0029] It should be noted that when an element is referred to as being "fixed to" another element, it can be directly on the other element or there can also be an intermediate element. When an element is considered to be "connected" to another element, it can be directly connected to the other element or there may be intermediate elements at the same time. On the contrary, when an element is referred to as being "directly on" another element, there is no intermediate element. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are for illustrative purposes only.

[0030] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those skilled in the technical field to which the present utility model belongs. The terms used herein in the description of the present utility model are only for the purpose of describing specific embodiments and are not intended to limit the present utility model. The term "and / or" used herein includes any and all combinations of one or more of the related listed items.

[0031] Please refer to Figures 1 to 6A top-entry embedded part injection mold comprises a fixed mold 100 and a movable mold 200, wherein the fixed mold 100 is embedded with a fixed mold core 300, and the movable mold 200 is embedded with a movable mold core 400 corresponding to the fixed mold core 300, and an injection mold cavity 500 is formed between the fixed mold core 300 and the movable mold core 400, and the fixed mold core 300 comprises an embedded plate 310 and a cavity plate 320, wherein the embedded plate 310 is located inside the cavity plate 320, and an ejector pin 311 is arranged on the embedded plate 310, and the cavity plate 320 is provided with an embedded hole 321 corresponding to the ejector pin 311, and the top of the ejector pin 311 is inserted into the embedded hole 321, and the embedded hole 321 is communicated with the injection mold cavity 500, and an elastic member 330 is also arranged between the embedded plate 310 and the cavity plate 320.

[0032] Specifically, in this embodiment, the embedded plate 310 and the cavity plate 320 are sequentially embedded in the fixed mold 100, and the ejector pin 311 is arranged on the embedded plate 310, and the embedded hole 321 corresponding to the ejector pin 311 is opened on the cavity plate 320, and the top of the ejector pin 311 is placed in the embedded hole 321, and an elastic member 330 is arranged between the cavity plate 320 and the embedded plate 310. The elastic member 330 adopts a compression spring. When injection molding is performed, the embedded member 10 is first placed in the embedded hole 321, and then The movable mold 200 and the fixed mold 100 are molded together. During the mold closing process, the movable mold core 400 of the movable mold 200 presses the mold cavity plate 320 of the fixed mold core 300, so that the mold cavity plate 320 moves toward the embedded plate 310. When the mold cavity plate 320 moves, it squeezes the elastic member 330 to compress it. When the mold cavity plate 320 moves, the ejector pin 311 on the embedded plate 310 pushes against the embedded member 10 in the embedded hole 321, so that it cannot move with the mold cavity plate 320. After the cavity plate 320 is pressed to the set position, the ejector pin 311 will push part of the embedded part 10 into the injection mold cavity 500. After the embedded part 10 is partially pushed in, the injection mold cavity 500 can be injected to achieve injection molding of the product. Finally, the movable mold 200 and the fixed mold 100 are opened, and the injection molded product is taken out manually or by a robot. The part of the embedded part 10 protruding from the injection molded product can be polished. When opening the mold, the movable mold core 400 is loosened from the cavity plate 320, and the cavity plate 320 is reset under the action of the rebound force of the elastic member 330 so as to perform injection molding of the next embedded part 10. Finally, the embedded plate 310, the cavity plate 320, the ejector pin 311 and the embedded hole 320 are combined to simplify the overall structure of the injection mold. By partially pushing the embedded part 10 into place, the embedded hole 321 can position the embedded part 10, thereby making the injection molding position of the embedded part 10 accurate, and effectively preventing the embedded part 10 from loosening from the embedded hole, thereby ensuring the qualified rate of the injection molded products.

[0033] In addition, in this embodiment, the embedded part 10 is made of metal. In order to better prevent the embedded part 10 from detaching from the embedded hole 321, the ejector pin 311 is made of magnetic material. The magnetic ejector pin 311 magnetically attracts the metal embedded part 10, and then the ejector pin 311 pushes the embedded part 10 partially into the injection mold cavity 500, so as to better prevent the embedded part 10 from loosening from the embedded hole 321, thereby ensuring the qualification rate of the injection molded product.

[0034] Moreover, in order to prevent the cavity plate 320 from detaching from the embedded plate 310 due to the elastic force of the elastic member 330, a bolt 340 is used for limiting connection between the embedded plate 310 and the cavity plate 320.

[0035] Please refer to Figures 3 to 6 , in order to make the structure of the injection mold simple and reasonable. Therefore, the fixed mold 100 in this embodiment includes a fixed mold plate 110 and a fixed mold mounting plate 120. The fixed mold plate 110 is fixedly connected to the fixed mold mounting plate 120. The fixed mold 100 can be installed and fixed to the injection molding machine through the fixed mold mounting plate 120. At the same time, the moving mold 200 includes a moving mold plate 210, moving mold feet 220 and a moving mold mounting plate 230. Both sides of the moving mold plate 210 are fixedly connected to the moving mold mounting plate 230 through the moving mold feet 220. The moving mold 200 can also be installed and fixed to the injection molding machine through the moving mold mounting plate 230, so that the fixed mold 100 and the moving mold 200 are oppositely installed on the injection molding machine, making the overall structure of the injection mold simple and reasonable in design.

[0036] Of course, in order to install the moving mold core 400 and the fixed mold core 300, grooves are provided on both the moving mold plate 210 and the fixed mold plate 110. The moving mold core 400 is embedded in the groove of the moving mold plate 210, and the embedded plate 310 and the cavity plate 320 of the fixed mold core 300 are sequentially embedded in the groove of the fixed mold plate 110 from the inside to the outside, so that the injection mold group is convenient and fast to assemble.

[0037] Moreover, in order to realize the injection of the product, a gate 121 communicating with the injection mold cavity 500 is also opened on the fixed mold mounting plate 120. Through the gate 121, the rubber material can be injected into the injection mold cavity 500 to realize the injection molding of the product.

[0038] Finally, in order to facilitate the demolding of the injection molded product in the injection mold cavity 500, in this embodiment, a demolding top plate 240 is further provided between the moving mold plate 210 and the moving mold mounting plate 230. The demolding top plate 240 is located between the two moving mold feet 220, and a demolding ejector pin (not shown in the figure) is provided on the demolding top plate 240. The top of the demolding ejector pin is located in the injection mold cavity 500.

[0039] The foregoing has shown and described the basic principles, main features and advantages of the present utility model. Any person skilled in the art can smoothly implement the present utility model according to what is shown in the accompanying drawings of the specification and what is described above; however, any minor changes, modifications and equivalent variations made by those skilled in the art within the scope of the technical solution of the present utility model by using the technical content disclosed above are equivalent embodiments of the present utility model; at the same time, any changes, modifications and equivalent variations made to the above embodiments based on the essential technology of the present utility model still fall within the scope of protection of the technical solution of the present utility model.

Claims

1. An injection mold for top - inserted embedded parts, comprising a fixed mold and a movable mold, characterized in that: The fixed mold is embedded with a fixed mold core, and the moving mold is embedded with a moving mold core corresponding to the fixed mold core. An injection mold cavity is formed between the fixed mold core and the moving mold core; The fixed mold core includes a pre-embedded plate and a mold cavity plate. The pre-embedded plate is located inside the mold cavity plate, and ejector pins are provided on the pre-embedded plate. The mold cavity plate is provided with pre-embedded holes corresponding to the ejector pins. The top of the ejector pin is inserted into the pre-embedded hole, and the pre-embedded hole is communicated with the injection mold cavity. An elastic member is also provided between the pre-embedded plate and the mold cavity plate.

2. The injection mold for the top-in type embedded part according to claim 1, wherein: The ejector pin is made of a magnetic material.

3. The injection mold for the top-in type embedded part according to claim 1, characterized in that: The pre-embedded plate and the mold cavity plate are limited and connected by bolts.

4. The injection mold for the top-in type embedded part according to claim 1, wherein: The fixed mold includes a fixed mold plate and a fixed mold mounting plate. The fixed mold plate is fixedly connected to the fixed mold mounting plate, and the fixed mold plate is provided with a groove. The pre-embedded plate and the mold cavity plate are sequentially embedded in the groove from the inside to the outside.

5. The injection mold for the top-in type embedded part according to claim 4, characterized in that: The fixed mold mounting plate is provided with a gate communicated with the injection mold cavity.

6. The injection mold for the top-in type embedded part according to claim 1, characterized in that: The moving mold includes a moving mold plate, moving mold feet and a moving mold mounting plate. The two sides of the moving mold plate are respectively fixedly connected to the moving mold mounting plate through the moving mold feet, and the moving mold core is embedded in the moving mold plate.

7. The injection mold for the top-in type embedded part according to claim 6, characterized in that: A demolding top plate is also provided between the moving mold plate and the moving mold mounting plate. The demolding top plate is located between the two moving mold feet on both sides, and demolding ejector pins are provided on the demolding top plate. The tops of the demolding ejector pins are located in the injection mold cavity.

8. The injection mold for the top-in type embedded part according to claim 1, characterized in that: The elastic member is a compression spring.

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