Auxiliary demolding device for plastic product processing
The plastic product auxiliary demoulding device with integrated ejector and spraying components realizes automatic demoulding and uniform spraying, solves the problems of product damage and uneven spraying in traditional methods, and improves production efficiency and product quality.
Patent Information
- Application Number
- CN202422867116.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-23
- Publication Date
- 2025-09-30
- Estimated Expiration
- 2034-11-23
AI Technical Summary
Traditional demoulding methods for plastic products are prone to damage to the product. Manual operation is unstable and the spraying of release agent is uneven, affecting product quality and production efficiency.
An auxiliary demoulding device integrating a push rod and a spraying component is designed. The product is automatically ejected by the push rod and the release agent is evenly sprayed using an electric spray head, forming an automated demoulding solution.
It improves product integrity and spraying consistency, simplifies production processes, and improves production efficiency and product quality.
Smart Images
Figure CN223395593U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to an auxiliary demoulding device, in particular to an auxiliary demoulding device for processing plastic products. Background Art
[0002] A plastic mold is a modular mold used for compression molding, extrusion molding, injection molding, blow molding, and low-foaming molding. By coordinating the punch, die, and auxiliary molding system, a wide range of plastic parts can be produced in various shapes and sizes. During the plastic product processing process, to ensure smooth removal from the mold while maintaining product integrity and surface quality, specifically designed demolding methods and auxiliary demolding devices are required.
[0003] Traditional demolding methods typically rely on tools such as hooks and crowbars. While simple and cost-effective, they present several challenges. Manual demolding can easily damage the finished product, impacting its integrity and surface quality. Furthermore, the instability of manual demolding can lead to inconsistent processing results, impacting production efficiency and product quality.
[0004] Many processes use release agents to improve the demoulding effect, but in most cases, manual handheld sprayers are required to spray the mold cavity. Manual spraying makes it difficult to ensure uniform distribution of the release agent, resulting in excessive or insufficient spraying in some areas, affecting the surface quality and consistency of the product. Manual spraying is also time-consuming and reduces production efficiency.
[0005] Based on this, in order to solve the above-mentioned technical defects, a plastic product processing auxiliary demoulding device is now proposed. Utility Model Content
[0006] In order to overcome the above-mentioned shortcomings, the purpose of the present invention is to provide a plastic product processing auxiliary demoulding device.
[0007] The technical solution is: a plastic product processing auxiliary demolding device, including a base frame, a first mold, a second mold, a fixed frame, a push rod, a spring and a spray assembly. The second mold is installed on the top right side of the base frame, and the first mold is slidably connected to the top left side of the base frame. The inner sides of the tops of the first mold and the second mold are connected to the fixed frame, and two symmetrically distributed push rods are slidably connected to the fixed frame. The push rods are respectively slidably connected to the corresponding first mold and second mold. Springs are connected between the upper ends of the push rods and the fixed frame, and a spray assembly is provided on the front side of the base frame.
[0008] To further illustrate, the ejector pin is U-shaped. In its initial state, its lower end passes through the cavity of the first mold or the second mold, while its upper end passes through the inner side of the fixing frame, and the ejector pins on both sides contact and cooperate with each other.
[0009] Further explanation: the spraying assembly includes a support platform, a support frame, an electric push rod, a pushing frame, a mobile frame, a limit rod, a nozzle and a connecting pipe. The front side of the base frame is connected to the support platform, the front side of the support platform is connected to the support frame, the top of the support platform is installed with an electric push rod, the telescopic rod of the electric push rod is connected to the pushing frame, the rear side of the support frame is connected to the limit rod, the outer side of the limit rod is rotatably connected to the mobile frame, the nozzles are symmetrically installed on the rear side of the mobile frame, the front sides of the nozzles are connected with connecting pipes, and the pushing frame is rotatably connected to the front end of the mobile frame.
[0010] Further description, it also includes a sphere, a groove is opened on the top of the limit rod, the sphere is connected to one side of the front end of the movable frame, and the sphere is slidably connected to the groove.
[0011] To further illustrate, the groove track is composed of multiple W-shaped lines, and the ball slides along the groove.
[0012] Further explanation: the connecting pipe is externally connected to a pump body, and the pump body is used to pump the release agent.
[0013] Beneficial effects: 1. This device ejects the formed product by setting a push rod and integrates a nozzle structure to spray the release agent, forming a complete solution. This design avoids the complexity of using multiple devices, improves the overall integration of the system, and simplifies the production process;
[0014] 2. This device realizes the automatic spraying function by automatically driving the nozzle to move and swing, which not only ensures the uniformity of spraying, but also avoids manual intervention, ensuring the consistency and stability of spraying quality. BRIEF DESCRIPTION OF THE DRAWINGS
[0015] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model.
[0016] Figure 2 It is a partial cross-sectional view of the present utility model.
[0017] Figure 3 This is a schematic diagram of the first partial three-dimensional structure of the utility model.
[0018] Figure 4 This is a schematic diagram of the second partial three-dimensional structure of the utility model.
[0019] Markings in the accompanying drawings: 1_base frame, 2_first mold, 3_second mold, 4_fixed frame, 5_top rod, 6_spring, 7_support platform, 8_support frame, 9_groove, 10_electric push rod, 11_pushing frame, 12_moving frame, 13_sphere, 14_limiting rod, 15_sprinkler, 16_connecting pipe. DETAILED DESCRIPTION
[0020] To make the objectives, technical solutions, and advantages of the present invention more clearly apparent, the present invention will be further described in detail below with reference to the accompanying drawings. It is hereby stated that any directional terms such as "up," "down," "left," "right," "front," "back," "inside," and "outside" that appear or will appear in this document are based solely on the accompanying drawings and are not intended to limit the present invention.
[0021] Embodiment: A plastic product processing auxiliary demoulding device, such as Figure 1-Figure 4 As shown, it includes a base frame 1, a first mold 2, a second mold 3, a fixing frame 4, a push rod 5, a spring 6 and a spraying assembly. The second mold 3 is installed on the top right side of the base frame 1, and the first mold 2 is slidably connected to the top left side of the base frame 1. The first mold 2 and the second mold 3 are both welded to the inner sides of the top of the fixed frame 4. The fixed frame 4 is slidably connected to two push rods 5 for ejecting the molded products, which are symmetrically distributed front and back. The push rods 5 are respectively slidably connected to the corresponding first mold 2 and second mold 3. The push rod 5 is U-shaped. In its initial state, its lower end passes through the cavity of the first mold 2 or the second mold 3, and the upper end passes through the inner side of the fixing frame 4. The push rods 5 on the left and right sides contact and cooperate with each other. A spring 6 is connected between the upper end of the push rod 5 and the fixing frame 4. A spraying assembly is provided on the front side of the base frame 1.
[0022] like Figure 1 、 Figure 3 and Figure 4 As shown, the spraying assembly includes a support platform 7, a support frame 8, a groove 9, an electric push rod 10, a pushing frame 11, a mobile frame 12, a sphere 13, a limiting rod 14, a nozzle 15 and a connecting pipe 16. The front side of the base frame 1 is welded with the support platform 7, the front side of the support platform 7 is connected to the support frame 8, the top of the support platform 7 is installed with an electric push rod 10 by bolts, the telescopic rod of the electric push rod 10 is connected to the pushing frame 11, the rear side of the support frame 8 is welded with a limiting rod 14, the outer side of the limiting rod 14 is rotatably connected to the mobile frame 12, and the rear side of the mobile frame 12 The nozzles 15 for spraying the release agent are installed symmetrically on the left and right. The front sides of the nozzles 15 are connected to connecting pipes 16. The connecting pipes 16 are externally connected to a pump body, which is used to pump the release agent. The pushing frame 11 is rotatably connected to the front end of the movable frame 12. A groove 9 is provided on the top of the limit rod 14. A ball 13 is welded to one side of the front end of the movable frame 12. The ball 13 is slidably connected to the groove 9. The groove 9 track is composed of multiple W-shaped lines. The ball 13 slides along the groove 9, which can drive the movable frame 12 to swing left and right, and the swing angle is about 45 degrees.
[0023] When molding plastic products, the external driving device is on the first mold 2. When the first mold 2 and the second mold 3 are preheated and reach the working temperature, the electric push rod 10 is started, and its telescopic rod extends to drive the push frame 11 to move backward, thereby driving the movable frame 12, the nozzle 15 and the connecting pipe 16 to move backward. The pump body is started to pump the release agent, so that the release agent enters the nozzle 15 through the connecting pipe 16, and then is sprayed from the nozzle 15 into the cavity of the first mold 2 and the second mold 3. When the movable frame 12 moves backward, the ball 13 therein slides along the groove 9, which can drive the movable frame 12 to move. Swinging left and right, thereby driving the nozzle 15 to swing left and right, can ensure that the release agent is evenly sprayed on the cavity. After the telescopic rod is extended to the limit, the telescopic rod automatically shortens and resets, driving the pushing frame 11 and the movable frame 12 to move forward, so as to drive the nozzle 15 and the connecting pipe 16 to move forward and reset. The nozzle 15 will swing left and right to spray the cavity for the second time. After the nozzle 15 is moved out, the pump body is closed. After the telescopic rod is shortened and reset, the electric push rod 10 is automatically closed, thus completing the automatic spraying work. The preheated first mold 2 and the second mold 3 help the release agent to better adhere to the surface of the cavity to form a uniform film.
[0024] Then, the driving device drives the first mold 2 to move to the right and close it with the second mold 3, and moves with the corresponding fixing frame 4 and the ejector rod 5. The upper ends of the left and right ejector rods 5 will contact each other, so that the ejector rods 5 on both sides move away from each other, and the spring 6 is compressed accordingly, and the lower end of the ejector rod 5 will retract into the cavity. After the first mold 2 and the second mold 3 are closed, injection molding can be carried out. After the molding is cooled, the driving device controls the first mold 2 to move to the left and open, and the left and right ejector rods 5 are disengaged. The spring 6 rebounds and resets, causing the ejector rod 5 to move inward and reset. The ejector rod 5 will be pushed out of the cavity, and then the product on the cavity will be ejected, completing the auxiliary demolding. The release agent originally sprayed can effectively prevent the mold from adhering to the cavity.
[0025] It should be understood that the above description is only for illustrative purposes and is not intended to limit the present invention. Those skilled in the art will understand that variations of the present invention will be within the scope of the claims herein.
Claims
1. A plastic product processing auxiliary demoulding device, characterized by: The invention comprises a base frame (1), a first mold (2), a second mold (3), a fixing frame (4), a push rod (5), a spring (6) and a spraying assembly. The second mold (3) is installed on the right side of the top of the base frame (1). The first mold (2) is slidably connected to the left side of the top of the base frame (1). The inner sides of the tops of the first mold (2) and the second mold (3) are both connected to the fixing frame (4). Two push rods (5) distributed symmetrically are slidably connected to the fixing frame (4). The push rods (5) are respectively slidably connected to the corresponding first mold (2) and second mold (3). A spring (6) is connected between the upper end of the push rod (5) and the fixing frame (4). The front side of the base frame (1) is provided with a spraying assembly.
2. A plastic product processing auxiliary demoulding device according to claim 1, characterized in that: The ejector rod (5) is U-shaped. In its initial state, its lower end passes through the cavity of the first mold (2) or the second mold (3), while its upper end passes through the inner side of the fixing frame (4). The ejector rods (5) on both sides are in contact with each other.
3. A plastic product processing auxiliary demoulding device according to claim 2, characterized in that: The spraying assembly comprises a support platform (7), a support frame (8), an electric push rod (10), a pushing frame (11), a movable frame (12), a limiting rod (14), a spray head (15) and a connecting pipe (16); the front side of the base frame (1) is connected to the support platform (7); the front side of the support platform (7) is connected to the support frame (8); the top of the support platform (7) is equipped with an electric push rod (10); the telescopic rod of the electric push rod (10) is connected to the pushing frame (11); the rear side of the support frame (8) is connected to the limiting rod (14); the outer side of the limiting rod (14) is rotatably connected to the movable frame (12); the rear side of the movable frame (12) is symmetrically equipped with spray heads (15); the front sides of the spray heads (15) are connected to the connecting pipe (16); the pushing frame (11) is rotatably connected to the front end of the movable frame (12).
4. A plastic product processing auxiliary demoulding device according to claim 3, characterized in that: The movable frame (12) further comprises a sphere (13), a groove (9) is provided on the top of the limiting rod (14), the sphere (13) is connected to one side of the front end of the movable frame (12), and the sphere (13) is connected to the groove (9) in a sliding manner.
5. The auxiliary demoulding device for processing plastic products according to claim 4, characterized in that: The groove (9) track is composed of a plurality of W-shaped lines, and the ball (13) slides along the groove (9).
6. The auxiliary demoulding device for processing plastic products according to claim 5, characterized in that: The connecting pipe (16) is externally connected to a pump body, and the pump body is used for pumping the release agent.