Injection mold capable of rotationally taking materials

By using a rotatable injection mold, and combining a hydraulic cylinder to drive the moving mold to rotate with a guide rod and a lever plate, the problem of demolding plastic petals was solved, achieving a stable and efficient demolding process, and reducing scrap rate and cleaning costs.

CN223618163UActive Publication Date: 2025-12-02HENAN COROLLA ARTS & CRAFTS CO LTD
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Patent Information

Application Number
CN202423312046.5
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-12-31
Publication Date
2025-12-02
Estimated Expiration
2034-12-31

AI Technical Summary

Technical Problem

Traditional demolding methods are difficult to effectively handle the complex curved shapes of plastic petals and leaves, leading to product deformation, tearing, or adhesion, especially in thin-walled structures where demolding becomes more difficult.

Method used

The injection mold with rotatable material handling is used. The moving mold is driven to rotate by a hydraulic cylinder. Combined with the design of guide rods and actuating plates, the centrifugal force and the collision effect of elastic elements are used to reduce adhesion and ensure that the petals can be smoothly removed from the mold cavity.

Benefits of technology

This method enables stable demolding of plastic petals, reduces scrap rate and mold cleaning time and costs, and improves production efficiency.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of injection molds, and discloses an injection mold capable of rotatably taking materials, which comprises a frame body, the top of the frame body is fixedly connected with an injection molding machine, and the output end of the injection molding machine is fixedly connected with an injection molding pipeline. The end, away from the injection molding machine, of the injection molding pipeline is fixedly connected with the static mold, and a material taking assembly is arranged in the frame body. According to the injection mold capable of rotationally taking the materials, through the arranged material taking assembly, when the mold rotates, a workpiece can displace in the rotating direction due to inertia, the adhesive force between a product and the movable mold is helped to be reduced, the adhesive force can be overcome through the centrifugal force effect, petals can be separated from the interior of the mold cavity more easily, and the workpiece is helped to be separated from the inner wall of the movable mold; the transverse rod guides the movable mold, the transverse rod ensures that the moving track of the movable mold is more stable through the limiting effect of the transverse rod and the fixing frame, and the problems of shaking, inclination or track deviation are avoided.
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Description

Technical Field

[0001] This utility model relates to the field of injection mold technology, specifically to an injection mold with a rotatable material handling mechanism. Background Technology

[0002] Plastic flowers are a type of simulated decorative item made primarily of plastic. They mimic the shape and color of real flowers. Compared to real flowers, plastic flowers are inexpensive, durable, and maintenance-free. They are typically made of soft plastic materials and have a certain degree of elasticity and flexibility.

[0003] The petals of plastic flowers are usually made through injection molding. This process uses heated and molten plastic raw materials, which are then injected under high pressure into a mold of a specific shape using an injection molding machine. After cooling and solidification, the petals are formed. Since the petals of plastic flowers usually need to simulate the flexibility and delicate texture of real petals, suitable flexible materials are selected during the production process, and realistic textures and contours are carefully depicted in the mold design.

[0004] Because the petals and leaves of plastic flowers typically have complex curved shapes, these parts need to form fine contours and natural curves within the mold during injection molding. This complex geometry poses a significant challenge to traditional demolding methods. If ordinary mechanical pushing or unidirectional demolding is used, uneven force distribution may lead to product deformation, tearing, or even direct damage. In addition, the walls of petals and leaves are usually thin and may adhere to a certain degree within the mold, further increasing the difficulty of demolding. In view of this, we propose a rotatable injection mold for material removal. Utility Model Content

[0005] The purpose of this invention is to provide a rotatable injection mold to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a rotatable material-grabbing injection mold, comprising a frame, an injection molding machine fixedly connected to the top of the frame, an injection pipe fixedly connected to the output end of the injection molding machine, and an end of the injection pipe away from the injection molding machine fixedly connected to a stationary mold; a material-grabbing assembly is provided inside the frame, the material-grabbing assembly comprising:

[0007] A hydraulic cylinder is fixedly connected to the inner wall of the frame. A moving mold is sleeved on the output end of the hydraulic cylinder. A guide groove is opened on the side wall of the moving mold. A limit ring is fixedly connected to the side wall of the moving mold.

[0008] Guide rod, which is fixedly connected to the inner wall of the frame;

[0009] The mounting bracket is sleeved with a limiting ring, and a crossbar is fixedly connected to the side wall of the mounting bracket.

[0010] Preferably, an installation plate is fixedly connected to the inner wall of the frame, the installation plate is hinged to the actuating plate, and an elastic element is fixedly connected to the side wall of the actuating plate.

[0011] Preferably, a collection box is fixedly connected to the inner bottom surface of the frame, and the collection box is located below the moving mold.

[0012] Preferably, the end of the elastic element away from the actuating plate is fixedly connected to the inner wall of the frame, and two sets of elastic elements are provided, with the two sets of elastic elements symmetrically arranged on the upper and lower sides of the actuating plate.

[0013] Preferably, the guide rod is spirally arranged and is movably connected to the guide groove. The guide rod allows the moving mold to rotate away from the stationary mold, and the injection molded part is thrown off by centrifugal force.

[0014] Preferably, the crossbar is sleeved with the fixed frame, and the fixed frame is sleeved on the outer wall of the stationary mold. The crossbar is limited to guide the moving mold, making the lateral movement of the moving mold more stable.

[0015] Compared with the prior art, this utility model provides a rotatable injection mold with the following advantages:

[0016] 1. This rotatable material-grabbing injection mold, through the set material-grabbing component, when the mold rotates, the workpiece will be displaced along the direction of rotation due to inertia, which helps to reduce the adhesion force between the product and the moving mold. The centrifugal force can overcome the adhesion force, making it easier for the petals to separate from the mold cavity, and helping to separate the workpiece from the inner wall of the moving mold. The crossbar guides the moving mold, and the crossbar, through the limiting effect with the fixed frame, ensures that the movement trajectory of the moving mold is more stable, avoiding problems such as shaking, tilting or track deviation.

[0017] 2. The rotatable injection mold, through the setting of the deflector plate and elastic element, the moving mold will collide with the deflector plate, giving the petals a knocking force, which helps to overcome the friction, vacuum adsorption force and adhesion force caused by cooling and shrinkage between the petals and the moving mold, thereby promoting the petals to smoothly leave the mold cavity and reducing the probability of petals remaining in the mold cavity. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the main structure of the present utility model;

[0019] Figure 2 This is a schematic diagram of the material handling component structure of this utility model;

[0020] Figure 3This is a schematic diagram of the moving mold structure of this utility model;

[0021] Figure 4 This is a schematic diagram of the guide rod structure of this utility model;

[0022] Figure 5 This is a schematic diagram of the toggle plate structure of this utility model.

[0023] In the diagram: 1. Frame; 2. Injection molding machine; 3. Injection pipe; 4. Stationary mold; 5. Material handling assembly; 501. Hydraulic cylinder; 502. Moving mold; 503. Guide rod; 504. Limiting ring; 505. Mounting bracket; 506. Crossbar; 507. Fixing bracket; 6. Mounting plate; 7. Actuating plate; 8. Elastic element; 9. Collection box. Detailed Implementation

[0024] like Figures 1-5 As shown, this utility model provides a technical solution: a rotatable material-retrieving injection mold, including a frame 1, an injection molding machine 2 fixedly connected to the top of the frame 1, an injection pipe 3 fixedly connected to the output end of the injection molding machine 2, and an end of the injection pipe 3 away from the injection molding machine 2 fixedly connected to a stationary mold 4. A material-retrieving component 5 is provided inside the frame 1, and the material-retrieving component 5 includes:

[0025] In one embodiment of this utility model, a hydraulic cylinder 501 is fixedly connected to the inner wall of the frame 1, and a moving mold 502 is sleeved on the output end of the hydraulic cylinder 501. A guide groove is provided on the side wall of the moving mold 502, and a limit ring 504 is fixedly connected to the side wall of the moving mold 502. A collection box 9 is fixedly connected to the inner bottom surface of the frame 1, and the collection box 9 is located below the moving mold 502.

[0026] The guide rod 503 is fixedly connected to the inner wall of the frame 1. The guide rod 503 is spirally arranged and is movably connected to the guide groove. The guide rod 503 allows the moving mold 502 to rotate away from the stationary mold 4 and throw the injection molded part off through centrifugal force.

[0027] Mounting bracket 505 is sleeved with limiting ring 504. A crossbar 506 is fixedly connected to the side wall of mounting bracket 505. The crossbar 506 is sleeved with fixed bracket 507. Fixed bracket 507 is sleeved on the outer wall of stationary mold 4. Through the limiting of crossbar 506, crossbar 506 guides moving mold 502, making the lateral movement of moving mold 502 more stable.

[0028] The hydraulic cylinder 501 pulls the moving mold 502 away from the stationary mold 4. The guide rod 503 is spirally arranged, which allows the moving mold 502 to rotate away from the stationary mold 4. When the mold rotates, the workpiece will be displaced along the direction of rotation due to inertia, which helps to reduce the adhesion between the product and the moving mold 502. The adhesion can be overcome by centrifugal force, making it easier for the petals to separate from the mold cavity and helping to separate the workpiece from the inner wall of the moving mold 502.

[0029] The horizontal bar 506 is used to guide the moving mold 502. The horizontal bar 506, through its limiting action with the fixed frame 507, ensures that the moving trajectory of the moving mold 502 is more stable, avoiding problems such as shaking, tilting or track deviation. This helps the centrifugal demolding process to proceed smoothly and avoids the decrease in efficiency caused by rotational deviation.

[0030] In addition, an installation plate 6 is fixedly connected to the inner wall of the frame 1. The installation plate 6 is hinged to the deflecting plate 7. An elastic element 8 is fixedly connected to the side wall of the deflecting plate 7. The end of the elastic element 8 away from the deflecting plate 7 is fixedly connected to the inner wall of the frame 1. There are two sets of elastic elements 8, which are symmetrically arranged on the upper and lower sides of the deflecting plate 7. When the moving mold 502 rotates, the moving mold 502 will collide with the deflecting plate 7, giving the petals a knocking force. This helps to overcome the friction, vacuum adsorption force and adhesion force caused by cooling and shrinkage between the petals and the moving mold 502, thereby promoting the petals to leave the mold cavity smoothly, reducing the probability of petals remaining in the mold cavity, reducing the scrap rate and the time cost of stopping to clean the mold.

[0031] In this invention, during use, the hydraulic cylinder 501 pulls the moving mold 502 away from the stationary mold 4. The guide rod 503 is spirally arranged, allowing the moving mold 502 to rotate away from the stationary mold 4. When the mold rotates, the workpiece will be displaced along the direction of rotation due to inertia, which helps reduce the adhesion between the product and the moving mold 502. The centrifugal force can overcome the adhesion, making it easier for the petals to separate from the mold cavity and helping to separate the workpiece from the inner wall of the moving mold 502. The crossbar 506 guides the moving mold 502. The crossbar 506, through its limiting action with the fixed frame 507, ensures that the movement trajectory of the moving mold 502 is more stable, avoiding problems such as shaking, tilting, or track deviation.

[0032] The present invention has been described in detail above. However, modifications or improvements can be made to it, which will be obvious to those skilled in the art. Therefore, any modifications or improvements that do not depart from the spirit of the present invention are within the protection scope of the present invention.

Claims

1. A rotatable injection mold, comprising a frame (1), wherein an injection molding machine (2) is fixedly connected to the top of the frame (1), and an injection pipe (3) is fixedly connected to the output end of the injection molding machine (2), wherein the end of the injection pipe (3) away from the injection molding machine (2) is fixedly connected to a stationary mold (4), characterized in that: The frame (1) is equipped with a material handling component (5), which includes: A hydraulic cylinder (501) is fixedly connected to the inner wall of the frame (1). A moving mold (502) is sleeved on the output end of the hydraulic cylinder (501). A guide groove is opened on the side wall of the moving mold (502). A limit ring (504) is fixedly connected to the side wall of the moving mold (502). Guide rod (503), the guide rod (503) is fixedly connected to the inner wall of the frame (1); Mounting bracket (505) is sleeved with limiting ring (504), and a crossbar (506) is fixedly connected to the side wall of mounting bracket (505).

2. The rotatable material-removing injection mold according to claim 1, characterized in that: The inner wall of the frame (1) is fixedly connected to an installation plate (6), which is hinged to a toggle plate (7). An elastic element (8) is fixedly connected to the side wall of the toggle plate (7).

3. The rotatable material-removing injection mold according to claim 1, characterized in that: A collection box (9) is fixedly connected to the bottom surface of the frame (1), and the collection box (9) is located below the moving mold (502).

4. The rotatable material-removing injection mold according to claim 2, characterized in that: The end of the elastic element (8) away from the actuating plate (7) is fixedly connected to the inner wall of the frame (1). There are two sets of elastic elements (8), and the two sets of elastic elements (8) are symmetrically arranged on the upper and lower sides of the actuating plate (7).

5. The rotatable material-removing injection mold according to claim 1, characterized in that: The guide rod (503) is spirally arranged and is movably connected to the guide groove.

6. The rotatable material-removing injection mold according to claim 1, characterized in that: The crossbar (506) is sleeved with the fixing frame (507), and the fixing frame (507) is sleeved on the outer wall of the stationary mold (4).