A pre-stabilization and proportioning mechanism for two-component casting

Abstract

The utility model provides a kind of pre-stabilization and proportion verification mechanism for two-component pouring, including at least two groups of circulating components, the circulating component includes storage tank, the circulating pipeline of the feed inlet and discharge port connection of connecting storage tank is connected, pouring tee bend valve and pressure regulating valve are equipped in the circulating pipeline, the same mixer is connected with one interface of pouring tee bend valve of each circulating component, when using, by material respectively in each circulating component circulation, until by pressure regulating valve reading material in circulating pipeline reaches set value, then by pouring tee bend valve opening circulating pipeline and the connecting channel of mixer, so that different materials are mixed in mixer, by the above structure, ensure that the first drop of material into mixer reaches accurate proportioning and stable pressure, ensure that the mixing quality and product consistency.

Description

Technical Field

[0001] This utility model relates to the field of casting equipment technology, specifically to a pre-stabilizing and proportioning verification mechanism for two-component casting. Background Technology

[0002] In existing two-component liquid vacuum casting equipment, a typical scheme includes two raw material tanks, A and B, respectively. Each raw material tank is equipped with a gear pump to extract material A (such as resin) and material B (such as curing agent) from the raw material tank. The materials are kept at a set temperature during the transportation process through heating pipelines. The equipment also includes a mixer to mix materials A and B in real time. The mixed material is then injected into the mold.

[0003] The main drawbacks of this existing technical solution are as follows: First, it lacks a pre-pouring proportion verification step. Operators cannot obtain and weigh the individual materials before mixing to calibrate the delivery accuracy of the gear pump. The accuracy of the proportions can only rely on the initial pump settings and is verified post-pouring by the quality of the finished product. This leads to high material waste and the risk of defective products. Second, when the system starts up, the pipeline pressure rises from zero. Before reaching a stable operating pressure, the pressure build-up curves of materials A and B are inconsistent due to their different viscosities. This can cause a temporary imbalance in the proportion of materials entering the mixer in the initial stage, resulting in substandard initial materials. Utility Model Content

[0004] To address the shortcomings of existing technologies, the purpose of this invention is to propose a pre-stabilizing and proportional verification mechanism for two-component casting, thereby resolving the problems mentioned in the background section.

[0005] This utility model is achieved through the following technical solution: A pre-pressure stabilization and proportioning verification mechanism for two-component casting includes at least two sets of circulation components. Each circulation component includes a storage tank and a circulation pipeline connecting the inlet and outlet of the storage tank. A casting three-way valve and a pressure regulating valve are provided in the circulation pipeline. One port of the casting three-way valve of each circulation component is connected to the same mixer.

[0006] Furthermore, a sampling three-way valve is provided in the circulation pipeline, and one of the ports of the sampling three-way valve is connected to a sampler.

[0007] Furthermore, a safety valve is provided in the circulation pipeline.

[0008] Furthermore, the casting three-way valve, pressure regulating valve, sampling three-way valve, and safety valve are arranged sequentially according to the material circulation flow direction.

[0009] Furthermore, the storage tank is equipped with a gear pump and also includes a controller, which is communicatively connected to the pouring three-way valve, the pressure regulating valve, the sampling three-way valve, the safety valve, and the gear pump.

[0010] Furthermore, the discharge end of the mixer is equipped with a two-way discharge valve to control its discharge opening and closing.

[0011] The beneficial effects of this utility model are as follows: A pre-pressure stabilization and proportion verification mechanism for two-component casting includes at least two sets of circulation components. Each circulation component includes a storage tank and a circulation pipeline connecting the inlet and outlet of the storage tank. A casting three-way valve and a pressure regulating valve are provided in the circulation pipeline. One port of the casting three-way valve of each circulation component is connected to the same mixer. In use, the materials circulate in their respective circulation components until the material in the circulation pipeline reaches the set value as read by the pressure regulating valve. Then, the connection channel between the circulation pipeline and the mixer is opened by the casting three-way valve, allowing different materials to mix in the mixer. Through the above structure, it is ensured that the first drop of material entering the mixer achieves accurate proportioning and stable pressure, thus guaranteeing the mixing quality and product consistency. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the structural connection of a pre-stabilizing and proportional verification mechanism for two-component casting according to the present invention.

[0013] The above figures include the following reference numerals: 1. Circulation assembly; 11. Storage tank; 12. Circulation pipeline; 13. Casting three-way valve; 14. Pressure regulating valve; 15. Sampling three-way valve; 16. Safety valve; 2. Mixer; 3. Two-way discharge valve. Detailed Implementation

[0014] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. It should be noted that the description of these embodiments is intended to aid in understanding this utility model, but does not constitute a limitation thereof. Furthermore, the technical features involved in the various embodiments of this utility model described below can be combined with each other as long as they do not conflict with each other.

[0015] Reference Figure 1As shown, a pre-pressure stabilization and proportion verification mechanism for two-component casting includes at least two sets of circulation components 1. Each circulation component 1 includes a storage tank 11 and a circulation pipeline 12 connecting the inlet and outlet of the storage tank 11. A casting three-way valve 13 and a pressure regulating valve 14 are provided in the circulation pipeline 12. One of the interfaces of the casting three-way valve 13 of each circulation component 1 is connected to the same mixer 2.

[0016] In use, the materials circulate in their respective circulation components 1 until the pressure regulating valve 14 reads that the material in the circulation pipeline 12 reaches the set value. Then, the connection channel between the circulation pipeline 12 and the mixer 2 is opened by the casting three-way valve 13, so that different materials are mixed in the mixer 2. Through the above structure, it is ensured that the first drop of material entering the mixer 2 reaches the accurate ratio and stable pressure, thus ensuring the mixing quality and product consistency.

[0017] A sampling three-way valve 15 is provided in the circulation pipeline 12, and one of the interfaces of the sampling three-way valve 15 is connected to a sampler. By opening the connection channel between the circulation pipeline 12 and the sampler (not shown in the figure) through the sampling three-way valve 15, the material is sampled and weighed, which can directly quantify and calibrate the conveying accuracy of the gear pump (not shown in the figure) in the storage tank 11, and realize the on-site quantitative calibration of the actual output of the gear pump.

[0018] The two materials are each independently regulated in the circulation component 1, effectively avoiding pressure interference and cross-contamination between the two circulation components 1. The pressure of the two circulation components 1 during casting can be precisely matched, eliminating flow fluctuations or "material cross-contamination" caused by pressure imbalance, and protecting the purity of the raw material system.

[0019] The sampling process requires no pipe disassembly and does not disrupt the vacuum. It can be completed under cyclic pressure stabilization, ensuring that the sample taken is equal to the actual flow rate at the moment of pouring. The calibration results are direct and reliable, further reducing quality risks. The traditional "post-event traceability" is replaced with "pre-event prevention," eliminating the drift in the addition ratio of two materials caused by pump wear, temperature and viscosity fluctuations, or setting errors in one go, significantly reducing scrap rate and material waste.

[0020] The dual-path pressure is independently adjustable, effectively avoiding pressure interference and cross-contamination. By installing pressure regulating valves 14 on their respective circulation pipelines 12, the pressure of the A and B paths during casting can be precisely matched, eliminating flow fluctuations or "material cross-contamination" caused by pressure imbalance and protecting the purity of the raw material system.

[0021] A safety valve 16 is provided in the circulation pipeline 12. The safety valve 16 is used to ensure that the circulation pipeline 12 does not leak and improves reliability. The safety valve 16 can be a spring-loaded safety relief valve in the prior art. When the circulation pipeline 12 is suddenly blocked or a valve is blocked, causing a sudden increase in pressure, the safety valve 16 will open immediately, directly releasing excess material to an external collection container (not shown in the figure), thereby preventing the circulation pipeline 12 from bursting due to overpressure and ensuring that the circulation pipeline 12 does not leak.

[0022] The pouring three-way valve 13, pressure regulating valve 14, sampling three-way valve 15, and safety valve 16 are arranged sequentially according to the material circulation flow direction. After the material pressure in the circulation pipeline 12 is measured by the pressure regulating valve 14 and meets the pouring pressure, the pouring three-way valve 13 is opened in the next cycle, allowing the material to enter the mixer 2 for mixing. This keeps the pouring pressure stable for one cycle, which helps improve the mixing quality and product consistency.

[0023] Furthermore, the storage tank 11 is equipped with a gear pump and a controller. The controller is communicatively connected to the casting three-way valve 13, the pressure regulating valve 14, the sampling three-way valve 15, the safety valve 16, and the gear pump. The controller reads the pressure of the pressure regulating valve 14, the weighing value of the sampling three-way valve 15, and the gear pump speed in real time, automatically calculates the actual flow deviation, and corrects the pump speed online. This improves the accuracy of the ratio of the two materials, enhances the automation and intelligence level of the equipment, and ensures the reliability and repeatability of the production process. The pressure stabilization and proportional control process, which originally relied on manual experience, is transformed into a standardized and programmed automatic operation process, significantly reducing the skill requirements for operators and ensuring a high degree of stability in the quality of each batch of products.

[0024] The discharge end of the mixer 2 is equipped with a two-way discharge valve 3 to control its discharge opening and closing. When pouring, the two-way discharge valve 3 is closed so that the inside of the mixer is still full of the material with the adjusted ratio, and there is no need to refill or vent the air when starting it up next time.

[0025] As an extension of the embodiment, the number of the circulation component 1 of this utility model includes, but is not limited to, two, and may also be three, four, five, etc., depending on the type of material to be added to the product.

[0026] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0027] In the description of this utility model, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined with "first" and "second" may explicitly or implicitly include one or more of that feature.

[0028] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A pre-stabilizing and proportional verification mechanism for two-component casting, characterized in that: It includes at least two sets of circulation components (1), each circulation component (1) including a storage tank (11), a circulation pipeline (12) connecting the inlet and outlet of the storage tank (11), a casting three-way valve (13) and a pressure regulating valve (14) provided in the circulation pipeline (12), and one of the interfaces of the casting three-way valve (13) of each circulation component (1) is connected to the same mixer (2).

2. The pre-stabilizing and proportional verification mechanism for two-component casting according to claim 1, characterized in that: A sampling three-way valve (15) is provided in the circulation pipeline (12), and one of the ports of the sampling three-way valve (15) is connected to a sampler.

3. The pre-stabilizing and proportional verification mechanism for two-component casting according to claim 2, characterized in that: A safety valve (16) is provided in the circulation pipeline (12).

4. The pre-stabilizing and proportional verification mechanism for two-component casting according to claim 3, characterized in that: The casting three-way valve (13), pressure regulating valve (14), sampling three-way valve (15), and safety valve (16) are arranged in sequence according to the material circulation flow direction.

5. The pre-stabilizing and proportional verification mechanism for two-component casting according to claim 3, characterized in that: The storage tank (11) is equipped with a gear pump and also includes a controller, which is communicatively connected to the pouring three-way valve (13), the pressure regulating valve (14), the sampling three-way valve (15), the safety valve (16) and the gear pump.

6. The pre-stabilizing and proportional verification mechanism for two-component casting according to claim 1, characterized in that: The mixer (2) is equipped with a two-way discharge valve (3) at the discharge end to control its discharge opening and closing.

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