A type of easy-to-release plastic product processing mold

Abstract

This application relates to the field of molds and discloses an easy-to-demold plastic product processing mold, including an upper mold, a lower mold, and an ejector plate. An ejector plate is movably installed inside the lower mold. Limiting rods are movably installed on both sides inside the lower mold. The top of the limiting rods is fixedly connected to the upper mold. A sleeve rod is movably installed inside the lower mold on the side adjacent to the limiting rods. A movable top plate is movably installed inside the sleeve rod. A rubber sleeve is provided between the sleeve rod and the movable top plate. An ejector plate is movably installed inside the lower mold on the side adjacent to the movable top plate. An injection groove is provided inside the lower mold at the top of the ejector plate. A support base is fixedly connected to the bottom of the lower mold. This application adopts a linked double demolding design, where the upper mold drives the movable top plate for pre-demolding, and the ejector plate ejects a second time. This improves demolding efficiency, shortens the cycle time, and ensures the integrity of the workpiece, achieving strong versatility through its reasonable structure.

Description

Technical Field

[0001] This application relates to the field of mold technology, and in particular to a mold for processing plastic products that is easy to demold. Background Technology

[0002] In the plastics processing industry, molds are key tools for producing plastic products. As the application fields of plastic products continue to expand, the requirements for mold performance and demolding effect are increasing.

[0003] Currently, traditional plastic product processing molds have many problems in demolding. Most molds have a single demolding method, mainly relying on a simple ejection mechanism. For plastic products with complex shapes, large sizes, or high demolding resistance, the demolding process is often not smooth, and product residue and deformation are likely to occur, which seriously affect product quality and production efficiency. Therefore, it is urgent to develop a plastic product processing mold that is easy to demold, highly versatile, and can effectively protect the product. Utility Model Content

[0004] To address the problems mentioned in the background art, this application provides an easy-to-demold plastic product processing mold.

[0005] The technical solution for an easy-to-demold plastic product processing mold provided in this application is as follows:

[0006] A plastic product processing mold with easy demolding includes an upper mold, a lower mold, and an ejector plate. The ejector plate is movably installed inside the lower mold. Limiting rods are movably installed on both sides inside the lower mold. The top of the limiting rods is fixedly connected to the upper mold. A sleeve rod is movably installed inside the lower mold on the side of the limiting rod. A movable top plate is movably installed inside the sleeve rod. A rubber sleeve is provided between the sleeve rod and the movable top plate. The ejector plate is movably installed inside the lower mold on the side of the movable top plate. An injection groove is provided inside the lower mold at the top of the ejector plate. A support base is fixedly connected to the bottom of the lower mold.

[0007] Preferably, positioning rods are fixedly connected inside the lower molds on both sides of the injection groove, and the positioning rods pass through the top plate.

[0008] Preferably, the lower molds on both sides of the sleeve rod are provided with limiting grooves, and the limiting rods are fitted into the limiting grooves.

[0009] Preferably, a fixing plate is fixedly connected to the bottom of the support base, and the fixing plate has bolt holes inside.

[0010] Preferably, a fixing member is fixedly connected to the top of the fixing plate, and the fixing member has a fixing hole inside.

[0011] In summary, this application includes the following beneficial technical effects:

[0012] The dual demolding method, which involves the upper mold pulling the movable top plate and the top plate lifting, greatly improves demolding efficiency and shortens the processing cycle of plastic products compared to the traditional single demolding method. In the dual demolding process, the movable top plate first pushes the workpiece, and then the top plate completely ejects the workpiece, avoiding damage to the workpiece due to uneven force during demolding and ensuring the stability and integrity of the workpiece demolding. The mold structure is reasonably designed, and by setting movable parts and support seats that can install external lifting structures, it can adapt to the demolding needs of different types of plastic products and has strong versatility. Attached Figure Description

[0013] Figure 1 This is a partial structural diagram of the lower mold and injection tank in an embodiment of the application;

[0014] Figure 2 This is an overall perspective view of the embodiment of the application;

[0015] Figure 3 This is a schematic diagram of the internal structure of an embodiment of the application.

[0016] Explanation of reference numerals in the attached drawings: 1. Upper mold; 2. Limiting rod; 3. Positioning rod; 4. Lower mold; 401. Injection groove; 5. Support base; 6. Fixing plate; 7. Fixing component; 8. Ejector plate; 9. Movable top plate; 10. Sleeve rod; 11. Rubber sleeve; 12. Limiting groove. Detailed Implementation

[0017] The following is in conjunction with the appendix Figure 1-3 This application will be described in further detail.

[0018] This application discloses an easy-to-demold plastic product processing mold. (Refer to...) Figure 1-3A plastic product processing mold for easy demolding includes an upper mold 1, a lower mold 4, and an ejector plate 8. The ejector plate 8 is movably installed inside the lower mold 4. Limiting rods 2 are movably installed on both sides inside the lower mold 4. The top of the limiting rods 2 is fixedly connected to the upper mold 1. A sleeve rod 10 is movably installed inside the lower mold 4 on the side of the limiting rod 2 that is close to the upper mold 1. A movable top plate 9 is movably installed inside the sleeve rod 10. A rubber sleeve 11 is provided between the sleeve rod 10 and the movable top plate 9. The ejector plate 8 is movably installed inside the lower mold 4 on the side of the movable top plate 9 that is close to the upper mold 1. The top of the ejector plate 8 is the lower mold... The lower mold 4 has an injection groove 401 inside. A support base 5 is fixedly connected to the bottom of the lower mold 4. The mold is assembled, and the limiting rods 2 are movably installed on both sides inside the lower mold 4. The upper mold 1 is fixedly connected to the top of the limiting rods 2. On the side where the limiting rods 2 are close to each other on both sides inside the lower mold 4, the sleeve rod 10 is movably installed. The movable top plate 9 is movably installed inside the sleeve rod 10, and a rubber sleeve 11 is set between the sleeve rod 10 and the movable top plate 9. The ejector plate 8 is movably installed inside the lower mold 4 on the side where the movable top plate 9 is close to each other. The support base 5 is fixedly connected to the bottom of the lower mold 4. The injection groove 401 is provided to ensure that all components are firmly installed and that moving parts can move flexibly. Check whether the movement of moving parts such as the limit rod 2, sleeve rod 10, movable top plate 9, and ejector plate 8 is smooth, and whether the rubber sleeve 11 is securely installed. Ensure that all mold components can work together during operation. Connect the external pulling and lifting equipment to the upper mold 1. When the mold opens, the upper mold 1 moves upward. Because the limit rod 2 is fixedly connected to the upper mold 1, the upper mold 1 drives the limit rod 2 to rise. At this time, the movable top plate 9, through the connection between the rubber sleeve 11 and the sleeve rod 10, is lifted by the upper mold 1. Pulling upwards together, the movable top plate 9 pushes the workpiece part inside the upper mold 1, initially separating the workpiece from the upper mold 1. As the upper mold 1 continues to be pulled upwards, the pulling force on the movable top plate 9 increases. When the pulling force exceeds the limits such as the friction of the rubber sleeve 11, the movable top plate 9 separates from the rubber sleeve 11. The movable top plate 9 can then move freely inside the sleeve rod 10, installing the external lifting structure on the top of the support base 5. The lifting structure is then activated, causing it to lift the ejector plate 8 upwards. During the upward movement of the ejector plate 8, the workpiece inside the injection tank 401 is ejected, completing the entire demolding process.

[0019] Reference Figure 1 Positioning rods 3 are fixedly connected inside the lower mold 4 on both sides of the injection groove 401, and the positioning rods 3 pass through the top plate 8. The positioning rods 3 can guide and limit the movement direction of the top plate 8, thereby improving the stability of the movement of the top plate 8.

[0020] Reference Figure 3 The lower mold 4 on both sides of the sleeve rod 10 is provided with a limiting groove 12, and the limiting rod 2 is fitted with the limiting groove 12, so that the limiting rod 2 can move inside the limiting groove 12.

[0021] Reference Figure 1 The bottom of the support base 5 is fixedly connected to a fixing plate 6, and the fixing plate 6 has bolt holes inside. The fixing plate 6 is connected to the external structure, and the external fixing bolts are screwed into the fixing plate 6 and the external structure and through the bolt holes, so that the device can be fixedly installed on the external structure for use.

[0022] Reference Figure 1 The top of the fixed plate 6 is fixedly connected to a fastener 7, and the fastener 7 has a fixing hole inside. The external lifting device is connected to the fastener 7, and the external fixing bolt is screwed into the space between the external lifting device and the fastener 7 and through the fixing hole. The external lifting device can then be installed on the fixed plate 6 to lift the top plate 8.

[0023] The implementation principle of an easy-to-demold plastic product processing mold according to an embodiment of this application is as follows: First, an external pulling and lifting device is connected to the upper mold 1, and the injection molding material is fed into the injection tank 401. When the mold opens, the upper mold 1 moves upward, and the limiting rod 2 is fixedly connected to the upper mold 1, driving the limiting rod 2 to rise. At this time, the movable top plate 9 is connected to the sleeve rod 10 through the rubber sleeve 11 and is pulled up together by the upper mold 1. The movable top plate 9 pushes the workpiece part inside the upper mold 1, initially separating the workpiece from the upper mold 1. As the upper mold 1 continues to pull upward, the pulling force on the movable top plate 9 increases. When the pulling force exceeds the limit such as the friction of the rubber sleeve 11, the movable top plate 9 separates from the rubber sleeve 11, and the movable top plate 9 can move freely inside the sleeve rod 10. An external lifting structure is installed on the top of the support base 5, and the lifting structure is activated to lift the top plate 8 upward. During the upward process of the top plate 8, the workpiece inside the injection tank 401 is ejected.

[0024] Finally, the following points should be noted: First, in the description of this application, it should be noted that, unless otherwise specified and limited, the terms "installation", "connection", and "linkage" should be interpreted broadly, and can be mechanical or electrical connections, or internal connections between two components, or direct connections. "Up", "down", "left", "right", etc. are only used to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may change.

[0025] Secondly: The accompanying drawings of the embodiments disclosed in this utility model only involve the structures involved in the embodiments disclosed in this utility model. Other structures can refer to the general design. In the absence of conflict, the same embodiment and different embodiments of this utility model can be combined with each other.

[0026] Finally: The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

[0027] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A plastic product processing mold that is easy to demold, comprising an upper mold (1), a lower mold (4), and an ejector plate (8), characterized in that: The lower mold (4) is equipped with a top plate (8) inside. Limiting rods (2) are movably installed on both sides inside the lower mold (4). The top of the limiting rods (2) is fixedly connected to the upper mold (1). A sleeve rod (10) is movably installed inside the lower mold (4) on the side close to the limiting rod (2). A movable top plate (9) is movably installed inside the sleeve rod (10). A rubber sleeve (11) is provided between the sleeve rod (10) and the movable top plate (9). The lower mold (4) on the side close to the movable top plate (9) is equipped with a top plate (8). An injection groove (401) is provided inside the lower mold (4) at the top of the top plate (8). A support base (5) is fixedly connected to the bottom of the lower mold (4).

2. The easy-to-demold plastic product processing mold according to claim 1, characterized in that: Positioning rods (3) are fixedly connected inside the lower molds (4) on both sides of the injection groove (401), and the positioning rods (3) pass through the top plate (8).

3. The easy-to-demold plastic product processing mold according to claim 1, characterized in that: The lower mold (4) on both sides of the sleeve (10) is provided with a limiting groove (12), and the limiting rod (2) is fitted with the limiting groove (12).

4. The easy-to-demold plastic product processing mold according to claim 1, characterized in that: The bottom of the support base (5) is fixedly connected to a fixing plate (6), and the fixing plate (6) has bolt holes inside.

5. The easy-to-demold plastic product processing mold according to claim 4, characterized in that: The top of the fixing plate (6) is fixedly connected to a fixing member (7), and the fixing member (7) has a fixing hole inside.

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