Pilot head of hot runner electromagnetic valve
Through electromagnetic force controlling the moving hot runner solenoid valve pilot head of the dynamic core, the energy consumption and response hysteresis problems of traditional fluid control equipment are solved, fast response and precise control are achieved, energy consumption is reduced, production efficiency and product quality are improved.
Patent Information
- Application Number
- CN202422132161.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-30
- Publication Date
- 2025-07-04
- Estimated Expiration
- 2034-08-30
AI Technical Summary
Traditional mechanical or hydraulically driven fluid control equipment has problems such as high energy consumption, large response hysteresis and errors, and serious energy loss in fluid flow and pressure regulation, which is difficult to meet the precise control needs of modern industry.
The movement of the dynamic iron core is controlled by electromagnetic force, and the coordination of the static iron core and the dynamic iron core can achieve rapid opening or closing of the main valve. The flow rate and pressure are adjusted by electromagnetic force, and the sealing structure of the O-ring and sealing ring is combined to ensure the stability and precise control of the fluid.
It realizes rapid response and precise adjustment of fluid control, reduces energy consumption, improves production efficiency and product quality, and reduces fluid leakage and equipment losses.
Smart Images
Figure CN223063282U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of hot runner solenoid valves, and particularly to a pilot head of a hot runner solenoid valve. Background Technique
[0002] A hot runner solenoid valve is a valve that combines the principles of direct acting and pilot acting, mainly used to regulate the flow rate and velocity of plastic materials and maintain the temperature stability of the hot runner system. It controls the flow of plastic by opening and closing, thus avoiding tearing or defects during the injection molding production process.
[0003] Traditional fluid control devices have long relied on mechanical or hydraulic drive mechanisms in operation. This traditional drive method usually involves energy consumption during actual operation. Especially in modern industrial applications, as the production process becomes increasingly complex and refined, the requirements for regulating the flow rate and pressure of the fluid control system become more precise and frequent, and the mechanical or hydraulic drive method relatively fails to meet these requirements.
[0004] Firstly, mechanical or hydraulic drive mechanisms require a large amount of power to drive their complex mechanical structures. Whether it is motor drive or hydraulic pump drive, a large amount of energy needs to be consumed. This energy consumption not only increases production costs but also imposes an unnecessary burden on the environment.
[0005] Secondly, during the process of frequent opening and closing or precise flow rate regulation, mechanical or hydraulic drive methods often have significant hysteresis and errors. The inertia of the mechanical structure makes it perform poorly in terms of rapid response and precise control, while hydraulic drive may result in a decrease in control accuracy due to issues such as the viscosity and leakage of hydraulic oil, which not only affects production efficiency but may also have an adverse impact on product quality.
[0006] In addition, these traditional mechanisms may also generate additional energy losses during operation. Friction between mechanical components consumes a large amount of energy, and problems such as leakage and oil heating in the hydraulic system also lead to energy waste. These additional energy losses not only increase production costs but may also have a negative impact on the service life and stability of the equipment. Content of the Utility Model
[0007] The purpose of the utility model is to provide a pilot head of a hot runner solenoid valve, which has the advantage of strong adaptability and solves the problems raised in the above background technique.
[0008] To achieve the above object, the present utility model provides the following technical solution: A hot runner solenoid valve pilot head, comprising a copper sleeve, wherein a moving iron core is arranged in the inner cavity of the copper sleeve, a static iron core is arranged at the top of the moving iron core, the top end of the static iron core penetrates to the outside of the copper sleeve, a long spring is arranged in the inner cavity of the static iron core, one end of the long spring extends into the inner cavity of the moving iron core, a second O-ring is sleeved at the bottom of the surface of the copper sleeve, a base is sleeved at the bottom of the surface of the copper sleeve, the second O-ring is located in the inner cavity of the base, a steel ball is arranged on one side of the inner cavity of the base, a plastic U-shaped support block is arranged at the center of the inner cavity of the base, a rubber plug is arranged in the inner cavity of the plastic U-shaped support block, a copper sealing nozzle is arranged at the bottom of the rubber plug, a cylindrical spring is connected to the center of the inner cavity of the copper sealing nozzle, the top of the cylindrical spring is connected to the rubber plug, a plastic manual rod is arranged on one side of the base, and one side of the plastic manual rod penetrates to the outside of the base.
[0009] Further, as a preferred embodiment of the present utility model, a first O-ring is sleeved on the surface of the static iron core, and the first O-ring is located in the inner cavity of the copper sleeve.
[0010] Further, as a preferred embodiment of the present utility model, a pressing plate is arranged at the top of the base, a plug pin is arranged at the bottom of the pressing plate, and one end of the plug pin penetrates into the inner cavity of the plastic manual rod.
[0011] Further, as a preferred embodiment of the present utility model, a fourth O-ring is sleeved on the surface of the plastic manual rod, and the fourth O-ring is located in the inner cavity of the base.
[0012] Further, as a preferred embodiment of the present utility model, a sealing ring and a third O-ring are respectively sleeved on the inner surface and the outer surface of the copper sealing nozzle, and the inner cavities of the sealing ring and the third O-ring are both in the inner cavity of the base.
[0013] Further, as a preferred embodiment of the present utility model, two through-top nuts are connected through the top of the base.
[0014] Beneficial effects, the technical solution of the present application has the following technical effects: The present utility model has the advantages of strong adaptability. In the actual use process, the movement of the moving iron core is controlled by electromagnetic force to achieve the rapid opening or closing of the main valve, so that the solenoid valve has a fast response speed, can quickly respond to external control signals, achieve precise control of the fluid, and can be adjusted according to different working conditions requirements. By adjusting the current magnitude of the static iron core to control the movement speed and stroke of the moving iron core, thus adapting to different flow rate, pressure and medium requirements. Compared with traditional fluid control devices, the hot runner solenoid valve pilot head controls the movement of the moving iron core through electromagnetic force, reducing energy consumption.
[0015] It should be understood that all combinations of the foregoing concepts and additional concepts described in more detail below can be regarded as part of the utility model subject matter of the present disclosure as long as such concepts do not conflict with each other. Brief Description of the Drawings
[0016] The drawings are used to provide a further understanding of the present utility model and form a part of the description. Together with the embodiments of the present utility model, they are used to explain the present utility model and do not constitute a limitation to the present utility model. In the drawings:
[0017] Figure 1 is a schematic structural view of the present utility model;
[0018] Figure 2 is a side view of the structure of the present utility model;
[0019] Figure 3 is a side sectional view of the structure of the present utility model;
[0020] Figure 4 is a partial side sectional view of the structure of the present utility model.
[0021] In the figures, the meanings of the respective reference numerals are as follows: 1, static iron core; 2, first O-ring; 3, moving iron core; 4, long spring; 5, copper sleeve; 6, pressing plate; 7, second O-ring; 8, base; 9, steel ball; 10, rubber plug; 11, copper sealing nozzle; 12, cylindrical spring; 13, sealing ring; 14, plastic U-shaped support block; 15, third O-ring; 16, fourth O-ring; 17, plastic manual rod; 18, pin; 19, through-top nut. Detailed Description of the Embodiments
[0022] The technical solutions in the embodiments of the present utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the present utility model. To better understand the technical content of the present utility model, specific embodiments are specifically cited and described in conjunction with the accompanying drawings as follows. In the present disclosure, aspects of the present utility model are described with reference to the drawings, and many illustrative embodiments are shown in the drawings. It should be understood that the various concepts and embodiments introduced above, as well as those concepts and embodiments described in more detail below, can be implemented in any of many ways. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the scope of protection of the present utility model.
[0023] As shown in the appended Figure 1 to the appended Figure 4Shown: This embodiment provides a pilot head of a hot runner solenoid valve, including a copper sleeve 5. A moving iron core 3 is arranged in the inner cavity of the copper sleeve 5. A static iron core 1 is arranged at the top of the moving iron core 3. The top end of the static iron core 1 penetrates to the outside of the copper sleeve 5. A long spring 4 is arranged in the inner cavity of the static iron core 1. One end of the long spring 4 extends into the inner cavity of the moving iron core 3. A second O-ring 7 is sleeved on the bottom of the surface of the copper sleeve 5. A base 8 is sleeved on the bottom of the surface of the copper sleeve 5. The second O-ring 7 is located in the inner cavity of the base 8. A steel ball 9 is arranged on one side of the inner cavity of the base 8. A plastic U-shaped support block 14 is arranged at the center of the inner cavity of the base 8. A rubber plug 10 is arranged in the inner cavity of the plastic U-shaped support block 14. A copper sealing nozzle 11 is arranged at the bottom of the rubber plug 10. A cylindrical spring 12 is connected to the center of the inner cavity of the copper sealing nozzle 11. The top of the cylindrical spring 12 is connected to the rubber plug 10. A plastic manual rod 17 is arranged on one side of the base 8. One side of the plastic manual rod 17 penetrates to the outside of the base 8.
[0024] Specifically, a first O-ring 2 is sleeved on the surface of the static iron core 1. The first O-ring 2 is located in the inner cavity of the copper sleeve 5.
[0025] In this embodiment: Through the setting of the first O-ring 2, a sealing effect is achieved. When the moving iron core 3 moves to control the opening and closing of the valve, the first O-ring 2 can ensure that when the valve is closed, the gap between the moving iron core 3 and the static iron core 1 will not cause fluid leakage.
[0026] Specifically, a pressing plate 6 is arranged on the top of the base 8. A plug pin 18 is arranged at the bottom of the pressing plate 6. One end of the plug pin 18 penetrates into the inner cavity of the plastic manual rod 17.
[0027] In this embodiment: Through the setting of the pressing plate 6 and the plug pin 18, first, the copper sleeve 5 and the base 8 are fixed by the pressing plate 6 to ensure that there is no movement or loosening during the operation process and to prevent unnecessary displacement due to vibration or other external factors. Second, the plastic manual rod 17 and the base 8 are connected and fixed by the plug pin 18 to ensure that their relative positions are fixed and unchanged to enhance stability.
[0028] Specifically, a fourth O-ring 16 is sleeved on the surface of the plastic manual rod 17. The fourth O-ring 16 is located in the inner cavity of the base 8.
[0029] In this embodiment: Through the setting of the fourth O-ring 16, it is ensured that when the valve is closed, there is no fluid leakage around the copper sleeve 5 or other fluid channels.
[0030] Specifically, a sealing ring 13 and a third O-ring 15 are respectively sleeved on the inner surface and the outer surface of the copper sealing nozzle 11. The inner cavities of the sealing ring 13 and the third O-ring 15 are both in the inner cavity of the base 8.
[0031] In this embodiment: By using the sealing ring 13 and the third O-ring 15 in combination, it is ensured that the technical solution of the present invention can maintain a stable sealing state, and to a certain extent, fluid leakage and other potential damage risks are avoided.
[0032] Specifically, two through-top nuts 19 are connected through the top of the base 8.
[0033] In this embodiment: Through the setting of the through-top nut 19, it plays a role in fixedly installing the pressure plate 6, the copper sleeve 5 and the base 8, and ensures the stability of the overall structure.
[0034] The working principle and usage process of the present utility model: When the current passes through the static iron core 1 in the energized state, it will generate a magnetic field, attracting the moving iron core 3 to move towards the static iron core 1. The movement of the moving iron core 3 changes the internal flow channel state, causing the control hole of the main valve to be opened or closed, thereby controlling the flow of the fluid. In the de-energized state, when the current is interrupted, the magnetic field of the static iron core 1 disappears, and the long spring 4 causes the moving iron core 3 to reset to the initial position, restoring the internal flow channel state, so that the control hole of the main valve returns to the previous state. The copper sleeve 5 provides a channel for the fluid to flow and protects the internal parts from corrosion. The copper sealing nozzle 11 is located at the outlet of the fluid flow to ensure that the fluid does not leak when the valve is closed.
[0035] It should be noted that in this article, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations.
[0036] Although the present utility model has been disclosed above with preferred embodiments, it is not intended to limit the present utility model. Those with ordinary knowledge in the technical field to which the present utility model belongs can make various changes and modifications without departing from the spirit and scope of the present utility model. Therefore, the protection scope of the present utility model shall be subject to what is defined by the claims.
Claims
1. A hot runner solenoid valve pilot head, comprising a copper sleeve (5), characterized in that: The inner cavity of the copper sleeve (5) is provided with a moving iron core (3). The top of the moving iron core (3) is provided with a static iron core (1). The top end of the static iron core (1) penetrates to the outside of the copper sleeve (5). The inner cavity of the static iron core (1) is provided with a long spring (4). One end of the long spring (4) extends into the inner cavity of the moving iron core (3). A second O-ring (7) is sleeved on the bottom surface of the copper sleeve (5). A base (8) is sleeved on the bottom surface of the copper sleeve (5). The second O-ring (7) is located in the inner cavity of the base (8). A steel ball (9) is arranged on one side of the inner cavity of the base (8). A plastic U-shaped support block (14) is arranged at the center of the inner cavity of the base (8). A rubber plug (10) is arranged in the inner cavity of the plastic U-shaped support block (14). A copper sealing nozzle (11) is arranged at the bottom of the rubber plug (10). A cylindrical spring (12) is connected to the center of the inner cavity of the copper sealing nozzle (11). The top of the cylindrical spring (12) is connected to the rubber plug (10). A plastic manual rod (17) is arranged on one side of the base (8). One side of the plastic manual rod (17) penetrates to the outside of the base (8).
2. The pilot head of a hot runner solenoid valve according to claim 1, characterized in that: A first O-ring (2) is sleeved on the surface of the static iron core (1). The first O-ring (2) is located in the inner cavity of the copper sleeve (5).
3. A pilot head of a hot runner solenoid valve according to claim 1, characterized in that: A pressing plate (6) is arranged on the top of the base (8). A plug pin (18) is arranged at the bottom of the pressing plate (6). One end of the plug pin (18) penetrates to the inner cavity of the plastic manual rod (17).
4. The pilot head of a hot runner solenoid valve according to claim 1, characterized in that: A fourth O-ring (16) is sleeved on the surface of the plastic manual rod (17). The fourth O-ring (16) is located in the inner cavity of the base (8).
5. A pilot head of a hot runner solenoid valve according to claim 1, characterized in that: A sealing ring (13) and a third O-ring (15) are respectively sleeved on the inner surface and the outer surface of the copper sealing nozzle (11). The inner cavities of the sealing ring (13) and the third O-ring (15) are both in the inner cavity of the base (8).
6. The pilot head of a hot runner solenoid valve according to claim 1, characterized in that: Two through-top nuts (19) are connected through the top of the base (8).