High-pressure in-mold reaction type material metering equipment

Abstract

The invention discloses high-pressure in-mold reaction type material metering equipment, which relates to the technical field of in-mold RIM production process corollary equipment, and comprises a system main body comprising a main frame, a control cabinet and the like, an integrated double-path metering pump set, a material storage tank set, an anti-curing mechanism and the like. During working, raw material defoaming, accurate metering, constant-temperature conveying, collision mixing and high-pressure injection are achieved through the processes of movable positioning, raw material preparation, pretreatment and the like, and after operation, excess materials can flow back and reset maintenance can be achieved. The equipment adopts a double-path parallel design to guarantee the matching precision and efficiency, the components are distributed to facilitate operation and maintenance, the operation stability is improved through closed-loop control and integrated design, the fault risk is reduced, and the equipment is adaptive to the multi-scene injection molding production requirements.

Description

Technical Field

[0001] This invention relates to the technical field of equipment for in-mold reactive material (RIM) production processes, specifically a high-pressure in-mold reactive material metering device. Background Technology

[0002] With the rapid development of in-mold RIM (Residual In-Mold Manufacturing) technology, its products, due to their excellent surface decoration quality, mechanical properties, weather resistance, and scratch resistance, are widely used in various fields such as automotive interior parts, high-end home appliance control panels, architectural decorative accessories, sports and leisure product shells, and industrial equipment control panels.

[0003] However, existing metering equipment adapted to the RIM process generally suffers from many technical defects: First, the measurement accuracy is too low, making it difficult to meet the needs of high-precision production scenarios. Second, the use of gear pumps or multi-plunger metering pumps can easily generate air bubbles during operation, leading to surface defects in products and increasing production costs. Third, the flow rate adjustment range is narrow, and its adaptability to different types of raw materials and processes is poor; Fourth, it cannot stably transport raw materials containing solid fillers such as glass fiber and solid powder particles, which limits its application scenarios; Fifth, the raw material conveying pressure is constant and cannot be adjusted, making it difficult to adapt to the characteristics and process requirements of various raw materials.

[0004] Therefore, the present invention provides a high-pressure in-mold reactive material metering device to solve one or more of the above-mentioned problems. Summary of the Invention

[0005] (a) Technical problems to be solved To address the shortcomings of existing technologies, this invention provides a high-pressure in-mold reactive material metering device to solve the problems mentioned in the background section.

[0006] (II) Technical Solution To achieve the above objectives, the present invention is implemented through the following technical solution: a high-pressure in-mold reactive material metering device, comprising a system body, the system body including a main frame, a control cabinet, a vacuum mechanism, a hydraulic mechanism, a first metering electric booster pump group, a first storage tank group, a first anti-curing mechanism, a first pipeline heating mechanism, a rotating boom, a second metering electric booster pump group, a second storage tank group, a second anti-curing mechanism, and a second pipeline heating mechanism.

[0007] The mounting bracket is installed on the top of the main frame via a support pole. The first storage tank group, the first metering electric booster pump group, the vacuum mechanism, and the rotating boom are connected in sequence. The second storage tank group, the second metering electric booster pump group, the vacuum mechanism, and the rotating boom are connected in sequence. The dual-path parallel design enables the precise proportioning and delivery of the two raw materials.

[0008] The inlet of the first pipeline heating mechanism is connected to the rotating boom, and the outlet is connected to the first metering electric booster pump group. The inlet of the second pipeline heating mechanism is connected to the rotating boom, and the outlet is connected to the second metering electric booster pump group. This can control the temperature of the raw materials during the conveying process and ensure the stable flowability of the raw materials.

[0009] The first anti-curing mechanism is connected to the first metering electric booster pump set, and the second anti-curing mechanism is connected to the second metering electric booster pump set to prevent the remaining raw materials from solidifying on the pump body components and avoid equipment damage.

[0010] The hydraulic mechanism is connected to the hydraulic control components of the rotating boom to achieve precise position control of the mixing head; the control cabinet is electrically connected to each electrical component to achieve centralized intelligent control of the equipment.

[0011] Preferably, the first metering electric booster pump unit includes a first motor, a first reducer, an electric telescopic cylinder, a pump support rod, a pump piston shaft, a pump barrel, and a pump base. All components are rigidly connected to form a whole, resulting in high transmission accuracy. The pneumatic straight-through ball valve and one-way valve configured at the inlet and outlet work in conjunction with the pressure sensor to achieve high-precision metering of raw materials. Moreover, this structure avoids turbulence and collision caused by high-speed movement, thus preventing the generation of air bubbles, while supporting the stable delivery of solid fillers.

[0012] Preferably, the first storage tank group adopts an inner and outer double tank structure. The inner tank is equipped with a magnetic shaft stirring motor and a stirring rack, which has good sealing performance and can reduce the contamination of raw materials by moisture in the air. The stepless speed regulation stirring function can prevent raw material sedimentation. The independent temperature-controlled heating device and vacuum mechanism work together to achieve degassing treatment and constant temperature storage of raw materials.

[0013] Preferably, the first anti-curing mechanism uses a circulating pump to drive the protective fluid to circulate and flush the pump piston shaft, preventing the raw material from solidifying and damaging the sealing elements, thus extending the service life of the equipment. During maintenance, only the protective fluid needs to be replaced periodically.

[0014] Preferably, the first pipeline heating mechanism forms a closed-loop circulation circuit through a heating oil tank, a heater, and a heat circulation pump, and works with a temperature sensor to achieve precise temperature control, ensuring that the raw materials maintain stable flowability during transportation.

[0015] Preferably, the rotating boom integrates a reflux shut-off valve and a hydraulic control valve, which can flexibly switch between working state and reflux state, improving the convenience of equipment operation.

[0016] Compared with the prior art, the beneficial effects of the present invention are as follows: 1. High metering accuracy: Through the precise transmission structure of the electric booster pump set, combined with the coordinated control of valves and pressure sensors, high-precision metering of raw materials is achieved, meeting the needs of high-requirement production scenarios; 2. No bubble generation: The vacuum mechanism pre-degasses the raw materials, and the structural design of the metering pump group avoids turbulence and collision, eliminating bubble generation from the source and ensuring the surface quality of the products. 3. Strong adaptability: The metering pump set can achieve stepless ratio change by adjusting the motor speed, with a wide flow adjustment range, which can adapt to various raw material characteristics and process requirements. It also supports solid packing conveying, expanding the application scenarios. 4. Comprehensive safety protection: The anti-curing mechanism effectively protects the pump body sealing elements, the pipeline heating mechanism ensures the stability of raw material delivery, and the overall modular design, combined with buffer components, reduces the risk of equipment damage; 5. Convenient operation and maintenance: Centralized intelligent control is achieved through the control cabinet, and a formula storage function can be added. The modular assembly and detachable design of each mechanism require only targeted handling during maintenance, reducing operation and maintenance costs. 6. Smooth transfer connection: The equipment is equipped with casters at the bottom for easy and flexible movement. The structural design of the rotating boom enables seamless connection of raw materials from storage and metering to mixing and injection, improving overall operation efficiency. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the main structure of the present invention; Figure 2 This is a side view of the structure of the present invention. Figure 1 ; Figure 3 This is a side view of the structure of the present invention. Figure 2 ; Figure 4 This is a schematic diagram of the first metering electric booster pump unit of the present invention. Figure 1 ; Figure 5 This is a schematic diagram of the first metering electric booster pump unit of the present invention. Figure 2 ; Figure 6 This is a schematic diagram of the first metering electric booster pump unit of the present invention. Figure 3 ; Figure 7 This is a schematic diagram of the first storage tank assembly of the present invention. Figure 1 ; Figure 8This is a schematic diagram of the first storage tank assembly of the present invention. Figure 2 ; Figure 9 This is a schematic diagram of the connection of the first anti-curing mechanism of the present invention; Figure 10 This is a schematic diagram of the first pipeline heating mechanism of the present invention; Figure 11 This is a schematic diagram of the rotating boom structure of the present invention; Figure 12 This is a schematic diagram of the rotating boom connection structure of the present invention; Figure 13 This is a schematic diagram of the main structure of the present invention; Figure 14 This is a schematic diagram of the working process of the present invention in conjunction with an injection molding machine.

[0018] In the diagram: 100, System main body; 101, Main frame; 102, Casters; 1, Control cabinet; 2, Vacuuming mechanism; 3, Hydraulic mechanism; 4, First metering electric booster pump group; 4a, Second metering electric booster pump group; 401, First motor; 402, First reducer; 403, Electric telescopic cylinder; 404, Pump support rod; 405, Pump piston shaft; 406, Pump tank; 407, Pump base; 409, Check valve; 410, Pneumatic straight-through ball valve; 411, Pressure sensor; 5, First storage tank group; 5a, Second storage tank group; 501, Outer tank; 502, Top cover; 503, Inner tank; 504, Stirring motor; 505, Stirring frame; 506, Level gauge tube; 507, Heating medium; 508, Level gauge. 509. Temperature sensor; 510. Heating rod; 6. First anti-curing mechanism; 6a. Second anti-curing mechanism; 601. Circulation pump; 602. Protective liquid; 7. First pipeline heating mechanism; 7a. Second pipeline heating mechanism; 701. Heating oil tank; 702. Heater; 703. Temperature sensor; 704. Thermal circulation pump; 8. Rotating boom; 801. Material pipe one; 802. Material pipe two; 803. Main pipe; 804. Material pipe three; 805. Material pipe four; 806. Material pipe five; 807. Material pipe six; 808. Ball valve; 809. Material pipe eight; 810. Mixing head; 811. First storage tank reflux shut-off valve; 812. Second storage tank reflux shut-off valve; 813. First hydraulic control valve; 814. Second hydraulic control valve. Detailed Implementation

[0019] In this invention, the terms "first," "second," etc., are used for descriptive purposes only and do not specifically refer to any order or sequence, nor are they intended to limit the invention. They are merely used to distinguish protective components or operations described using the same technical terms, and should not be construed as indicating or implying their relative importance or implicitly specifying the number of indicated technical features. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features. Furthermore, the technical solutions and features of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or impossible to implement, such a combination of technical solutions should be considered non-existent and not within the scope of protection claimed by this invention.

[0020] Example 1, please refer to Figures 1-14 The present invention provides a technical solution: a high-pressure in-mold reactive material metering device, comprising a system body 100, wherein the system body 100 includes a main frame 101, a control cabinet 1, a vacuuming mechanism 2, a hydraulic mechanism 3, a first metering electric booster pump group 4, a first storage tank group 5, a first anti-curing mechanism 6, a first pipeline heating mechanism 7, a rotating boom 8, a second metering electric booster pump group 4a, a second storage tank group 5a, a second anti-curing mechanism 6a, and a second pipeline heating mechanism 7a.

[0021] Working Principle: This embodiment is a basic embodiment of the equipment, which integrates the basic functions of raw material metering, conveying, mixing, and safety protection. During operation, the equipment is first moved to a preset position that matches the injection molding machine using the casters 102 at the bottom of the main frame 101; after the control cabinet 1 is powered on, each component is initialized; the first storage tank group 5 and the second storage tank group 5a store two kinds of raw materials to be mixed respectively, and the vacuum mechanism 2 is activated to degas the raw materials; under the control of the control cabinet 1, the first metering electric booster pump group 4 and the second metering electric booster pump group 4a accurately meter the raw materials and convey them to the pipeline of the rotating boom 8; the first pipeline heating mechanism 7 and the second pipeline heating mechanism 7a maintain the raw material temperature stable throughout the process; the first anti-curing mechanism 6 and the second anti-curing mechanism 6a work continuously to prevent the raw materials from solidifying on the pump body components; The hydraulic mechanism 3 can control the opening and closing of the hydraulic cylinder of the mixing head 810, thereby controlling its movement to a designated position, so that the raw materials are injected into the mold after being mixed by the collision of the mixing head 810 (the mixing head 810 needs to be rigidly connected to the mold for the first use), while the rotating boom 8 is composed of a mechanical structure, so its posture can be adjusted manually. Beneficial effects: 1. It constructs the core framework of the equipment, realizing the integration of functions such as raw material storage, degassing, metering, heating, mixing, and injection, providing stable support for the coordinated work of subsequent components; 2. The dual-path parallel structure design can process two raw materials simultaneously, ensuring proportioning accuracy and improving production efficiency; 3. The distributed layout of each component facilitates operation and maintenance, while ensuring the stability of equipment operation; 4. The pre-assembly of safety protection components structurally reduces the risk of raw material leakage and equipment damage, ensuring operational safety.

[0022] Example 2: Please refer to Figures 4-6 Based on Embodiment 1, the first metering electric booster pump group 4 includes a first motor 401, a first reducer 402, an electric telescopic cylinder 403, a pump support rod 404, a pump piston shaft 405, a pump barrel 406, and a pump base 407. All components are rigidly connected to form an integral whole. The first motor 401, the first reducer 402, and the electric telescopic cylinder 403 are rotatably connected. Both the inlet and outlet are equipped with a pneumatic straight-through ball valve 410 and a one-way valve 409, and a pressure sensor 411 is provided at the outlet. The second metering electric booster pump group 4a has the same structure as the first metering electric booster pump group 4.

[0023] Working Principle: This embodiment, based on Embodiment 1, focuses on optimizing the accuracy of raw material metering and the stability of conveying. During operation, the control cabinet 1 starts the first motor 401 according to the preset formula parameters. After the speed is adjusted by the first reducer 402, it drives the electric telescopic cylinder 403 to drive the pump piston shaft 405 to reciprocate within the pump barrel 406. During feeding, the inlet pneumatic straight-through ball valve 410 opens and the one-way valve 409 is open, allowing the raw material to enter the pump barrel 406. During discharging, the inlet pneumatic straight-through ball valve 410 closes, the outlet pneumatic straight-through ball valve 410 opens, and the one-way valve 409 is open, allowing the raw material to be conveyed to the rotating boom 8 under the thrust of the pump piston shaft 405. The pressure sensor 411 monitors the discharge pressure in real time and feeds the data back to the control cabinet 1, dynamically adjusting the motor speed to ensure metering accuracy. The pump support rod 404 and the pump base 407 ensure the overall structural stability of the pump unit.

[0024] Beneficial effects: 1. The rigidly connected pump set structure ensures high transmission accuracy, enabling high-precision metering of raw materials and meeting demanding production scenarios; 2. Coordinated valve control at the inlet and outlet prevents raw material backflow and improves conveying stability; 3. Closed-loop control using pressure sensors allows for dynamic adjustment of operating parameters to adapt to the conveying needs of different raw materials; 4. The identical dual-pump set structure ensures consistent metering accuracy for both raw materials, improving product quality; 5. The structural design eliminates high-speed turbulence and collisions, preventing bubble formation and supporting solid packing conveying, thus expanding application scenarios.

[0025] Example 3: Please refer to Figures 7-8Based on any one of Embodiments 1-2, the first storage tank group 5 includes an outer tank 501, a top cover 502, and an inner tank 503. The top cover 502 is equipped with a stirring motor 504 and an electronic vacuum pressure gauge. The inner tank 503 is equipped with a stirring rack 505 and is also equipped with a level gauge tube 506, a heating medium 507, a level gauge 508, a temperature sensor 509, and a heating rod 510. The second storage tank group 5a has the same structure as the first storage tank group 5.

[0026] Working Principle: The core of this embodiment is to achieve stable storage, degassing, and anti-sedimentation of raw materials. Before operation, the raw materials are injected into the inner tank 503 and the top cover 502 is closed; the vacuum mechanism 2 is started, and the vacuum level inside the inner tank 503 is observed in real time through the electronic vacuum pressure gauge to complete the degassing of the raw materials; according to the characteristics of the raw materials, the heating temperature is set through the control cabinet 1, and the heating rod 510 and the heating medium 507 work together to achieve constant temperature control, and the temperature sensor 509 provides real-time feedback of temperature data; the stirring motor 504 is started, driving the stirring rack 505 to rotate in a stepless speed regulation manner to prevent the raw materials from settling and improve the flowability of the raw materials; the liquid level gauge tube 506 and the level gauge 508 monitor the remaining amount of raw materials in real time to facilitate timely replenishment.

[0027] Beneficial effects: 1. The double-tank structure provides excellent insulation, and the independent temperature control system ensures that raw materials are always at a suitable temperature, improving the stability of conveying and mixing; 2. The magnetic shaft stirring motor has good sealing properties, reducing the contamination of raw materials by moisture in the air and preventing deterioration; 3. The stepless speed-adjustable stirring function can adjust the stirring speed according to the characteristics of the raw materials, effectively preventing sedimentation and avoiding excessive stirring that generates bubbles; 4. The integrated design of the vacuum mechanism and storage tank simplifies the operation process, provides good degassing, and ensures product quality; 5. Multiple monitoring components (liquid level gauge, material level gauge, temperature sensor) facilitate real-time monitoring of the raw material status and improve operational controllability.

[0028] Example 4: Please refer to Figure 9 Based on any one of embodiments 1-3, the first anti-curing mechanism 6 includes a circulating pump 601 and a protective liquid 602. The circulating pump 601 is connected to the pump piston shaft 405 area of ​​the first metering electric booster pump group 4 through a pipeline. The second anti-curing mechanism 6a has the same structure as the first anti-curing mechanism 6.

[0029] Working principle: The core principle of this embodiment is to prevent raw materials from solidifying on the pump body components, thus ensuring the service life of the equipment. During operation, the circulating pump 601 starts, pumping the protective liquid 602 into the pump piston shaft 405 area of ​​the first metering electric booster pump group 4, forming a closed loop; the protective liquid 602 continuously flushes the surface of the pump piston shaft 405 to prevent residual raw materials from solidifying on the shaft and avoid damage to the sealing elements; the loop valve is opened periodically to replace the protective liquid 602, ensuring the protective effect; the second anti-curing mechanism 6a works synchronously with the first anti-curing mechanism 6 to protect the second metering electric booster pump group 4a.

[0030] Beneficial effects: 1. The circulating protection design provides comprehensive protection, effectively preventing damage to the pump body sealing elements caused by raw material solidification and extending the service life of the pump set; 2. The protective fluid replacement operation is simple, requiring no disassembly of the pump set, reducing maintenance costs and workload; 3. The protection process does not affect the normal delivery and metering accuracy of the raw materials, ensuring continuous operation; 4. The dual anti-solidification mechanisms correspond to the dual pump sets respectively, providing strong targeted protection and improving the overall reliability of the equipment.

[0031] Example 5: Please refer to Figure 10 Based on any one of embodiments 1-4, the first pipeline heating mechanism 7 includes a heating oil tank 701, a heater 702, a temperature sensor 703, and a heat circulation pump 704. Each component is connected in series with the built-in pipeline of the rotating boom 8 and the heating jacket of the first metering electric booster pump group 4. The second pipeline heating mechanism 7a has the same structure as the first pipeline heating mechanism 7.

[0032] Working Principle: The core principle of this embodiment is to ensure the temperature stability of the raw materials during transportation and improve their flowability. During operation, the control cabinet 1 sets the heating temperature, and the heater 702 starts to heat the heat transfer medium in the heating oil tank 701; the heat circulation pump 704 starts, driving the heat transfer medium to form a closed loop circulation between the heating oil tank 701, the heater 702, the internal pipeline of the rotating boom 8, and the heating jacket of the first metering electric booster pump group 4; the temperature sensor 703 monitors the temperature of the heat transfer medium in real time and feeds it back to the control cabinet 1, dynamically adjusting the working state of the heater 702 to ensure a constant temperature of the heat transfer medium; the heat transfer medium transfers heat to the raw materials through the pipeline and the heating jacket, maintaining the stability of the raw material temperature.

[0033] Beneficial effects: 1. Closed-loop heating design ensures good heating uniformity and precise temperature control of raw materials, guaranteeing good flowability during transport; 2. Closed-loop control using temperature sensors provides high temperature control accuracy and adapts to the temperature requirements of different raw materials; 3. Integrated design of the heating mechanism, conveying pipeline, and pump group minimizes heat loss and achieves good energy efficiency; 4. Dual-pipeline heating mechanism corresponds to two separate conveying loops, ensuring temperature stability for both raw materials and improving mixing efficiency; 5. Modular structural design facilitates installation, debugging, and maintenance, reducing the probability of equipment failure.

[0034] Example 6: Please refer to Figures 11-13 Based on any one of embodiments 1-5, the rotating boom 8 includes material pipe 801 to material pipe 809, mixing head 810, first storage tank reflux stop valve 811, second storage tank reflux stop valve 812, first hydraulic control valve 813, and second hydraulic control valve 814; the mixing head 810 is connected to each material pipe through the main pipe 803.

[0035] Working Principle: The core of this embodiment is to realize the conveying, reflux switching, and precise mixing and injection of raw materials. During operation, the hydraulic mechanism 3 is controlled, and the hydraulic cylinders at the mixing head 810 are controlled simultaneously through the first hydraulic control valve 813 and the second hydraulic control valve 814. Since there are two sets of hydraulic cylinders on the mixing head 810, the two sets of hydraulic cylinders are opened in sequence to complete the collision and conveying of raw material mixing. When the raw material mixing is closed and the raw material is being conveyed, the first storage tank reflux stop valve 811 and the second storage tank reflux stop valve 812 are opened, and the remaining raw material flows back to the corresponding storage tank, avoiding raw material waste and pipeline blockage; the ball valve 808 can be closed during equipment maintenance to isolate the pipeline and facilitate maintenance.

[0036] Beneficial effects: 1. Integrated pipeline design, compact structure, reduced raw material residue, and reduced waste; 2. The reflux shut-off valve allows for quick switching between working and reflux states, making operation convenient; 3. The hydraulically controlled rotating boom provides precise position adjustment and adapts to the injection port positions of different molds, improving equipment versatility; 4. The collision mixing design of the mixing head ensures good mixing effect and guarantees product uniformity; 5. Modular assembly of each material pipe facilitates disassembly and replacement, reducing maintenance costs.

[0037] Example 7: Please refer to Figure 1 Based on any one of embodiments 1-6, the main frame 101 is provided with a moving wheel 102 at the bottom, and the vacuum mechanism 2 is connected to the inner tank of the two storage tanks; the first metering electric booster pump group 4, the first storage tank group 5, etc. are located on the left side of the main frame 101, the vacuum mechanism 2 is located on the rear side of the control cabinet 1, and the hydraulic mechanism 3 is located on the right side of the main frame 101.

[0038] Working Principle: This embodiment optimizes the equipment layout to improve operational convenience and mobility. Before operation, the equipment is moved to the designated workstation using the casters 102, which can be locked to ensure equipment stability during operation. The metering pump group, storage tank group, and other components on the left side of the equipment are close to the operator for easy material addition, parameter observation, and daily maintenance. The vacuum mechanism 2 at the rear and the hydraulic mechanism 3 on the right side are located away from the core operation area to avoid interference. The vacuum mechanism 2 is simultaneously connected to the inner tanks of the two storage tanks to complete the degassing treatment of the two raw materials in sync, improving operational efficiency.

[0039] Beneficial effects: 1. The reasonable layout design and centralized operation area facilitate various tasks for operators and reduce labor intensity; 2. The installation of casters allows the equipment to be flexibly moved to different workstations to adapt to the needs of multiple scenarios; 3. The clear division of functional areas reduces mutual interference between components and improves the stability of equipment operation; 4. The shared design of the vacuuming mechanism simplifies the equipment structure, reduces manufacturing costs, and improves the synchronization of degassing operations.

[0040] The specific operating procedure for using this invention is as follows: 1. Equipment movement and positioning: Move the equipment to the preset working position next to the injection molding machine using the casters 102 at the bottom of the main frame 101, and lock the casters 102 to ensure equipment stability.

[0041] 2. Raw material preparation: Open the top cover 502 of the first storage tank group 5 and the second storage tank group 5a, and inject the two raw materials to be mixed into the corresponding inner tank 503 respectively, and close the top cover 502; confirm that the raw material balance is sufficient through the level gauge tube 506 and the level gauge 508.

[0042] 3. Pre-treatment settings: Set parameters such as the heating temperature of the storage tank, the heating temperature of the pipeline, the speed of the stirring motor, and the raw material ratio through the control cabinet 1; start the vacuum mechanism 2 to degas the raw materials in the two storage tanks, observe the vacuum degree through the electronic vacuum pressure gauge, and maintain it after reaching the preset value.

[0043] 4. Equipment initialization: Start the circulation pump 601 of the first anti-curing mechanism 6 and the second anti-curing mechanism 6 to start the circulation of the protective liquid 602; start the first pipeline heating mechanism 7 and the second pipeline heating mechanism 7a, and after the temperature reaches the set value and stabilizes, proceed to the next step.

[0044] 5. Precise alignment: The rotating boom 8 is controlled by the hydraulic mechanism 3 to rotate, so that the mixing head 810 is precisely aligned with the injection port of the mold, and the hydraulic control valve is locked (the rotating boom 8 can be manually adjusted in its posture. The mixing head 810 needs to be rigidly connected to the mold before the first use).

[0045] 6. Metering, conveying and mixing injection: Control cabinet 1 starts the first metering electric booster pump group 4 and the second metering electric booster pump group 4a. According to the preset ratio parameters, the raw material flow rate is controlled by adjusting the motor speed. After the raw material is metered by the pump group, it is conveyed to the rotating boom 8 through the pipeline. After being mixed by collision in the mixing head 810, it is injected into the mold under high pressure.

[0046] 7. Operation Completion and Reset: After the raw material injection is completed, turn off the metering pump group, open the first storage tank return shut-off valve 811 and the second storage tank return shut-off valve 812 to allow the remaining raw material in the pipeline to return to the storage tank; control the rotating boom 8 to reset, and turn off the vacuum mechanism 2, heating mechanism and anti-curing mechanism; loosen the moving wheels 102 and move the equipment to the designated storage location.

[0047] 8. Maintenance: Regularly replace the protective fluid 602 in the anti-curing mechanism, clean the storage tank and pipelines, and check the working status of each valve and sensor to ensure that the equipment can be used normally next time.

[0048] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the present invention as claimed. The scope of protection of this invention is defined by the appended claims and their equivalents.

Claims

1. A high-pressure in-mold reaction material metering device, characterized in that, The system includes a main body (100), which includes a main frame (101) and a control cabinet (1), a vacuum mechanism (2), a hydraulic mechanism (3), a first metering electric booster pump group (4), a first storage tank group (5), a first anti-curing mechanism (6), a first pipeline heating mechanism (7), a rotating boom (8), a second metering electric booster pump group (4a), a second storage tank group (5a), a second anti-curing mechanism (6a), and a second pipeline heating mechanism (7a) configured on the main frame (101). The first storage tank group (5), the first metering electric booster pump group (4), the vacuuming mechanism (2), and the rotating boom (8) are connected in sequence, and the second storage tank group (5a), the second metering electric booster pump group (4a), the vacuuming mechanism (2), and the rotating boom (8) are connected in sequence. The inlet of the first pipeline heating mechanism (7) is connected to the rotating boom (8), and the outlet is connected to the first metering electric booster pump group (4). The inlet of the second pipeline heating mechanism (7a) is connected to the rotating boom (8), and the outlet is connected to the second metering electric booster pump group (4a). The first anti-curing mechanism (6) is connected to the first metering electric booster pump group (4), and the second anti-curing mechanism (6a) is connected to the second metering electric booster pump group (4a); The hydraulic mechanism (3) is connected to the hydraulic control component of the rotating boom (8), and the hydraulic control component on the rotating boom (8) is used to control the opening or closing of the mixing head (810). The control cabinet (1) is electrically connected to each electrical component.

2. The high-pressure in-mold reaction material metering device according to claim 1, characterized in that, The first metering electric booster pump set (4) includes a first motor (401), a first reducer (402), an electric telescopic cylinder (403), a pump support rod (404), a pump piston shaft (405), a pump barrel (406), and a pump base (407). All components are rigidly connected to form a whole. The first electric motor (401), the first reducer (402), and the electric telescopic cylinder (403) are rotatably connected; The first metering electric booster pump group (4) is equipped with a pneumatic straight-through ball valve (410) and a check valve (409) at the inlet and a pneumatic straight-through ball valve (410) and a check valve (409) at the outlet. The outlet is also equipped with a pressure sensor (411). The check valve (409) at the inlet and outlet cooperates with the pneumatic straight-through ball valve (410) to realize the metering function. The first metering electric booster pump group (4) is located on the rear side of the main frame (101), and the second metering electric booster pump group (4a) has the same structure as the first metering electric booster pump group (4).

3. The high-pressure in-mold reaction material metering device according to claim 1, characterized in that, The first storage tank group (5) includes an outer tank body (501), a top cover (502) is provided at the upper end of the outer tank body (501), and an inner tank body (503) is provided inside the outer tank body (501), with the upper end of the inner tank body (503) connected to the top cover (502); The top cover (502) is equipped with a stirring motor (504) and an electronic vacuum pressure gauge, and the inner tank (503) is equipped with a stirring rack (505) connected to the stirring motor (504). The inner tank (503) is also equipped with a level gauge tube (506), a heating medium (507), a level gauge (508), a temperature sensor (509), and a heating rod (510); The stirring motor (504) has a magnetic coupling structure and supports stepless speed regulation; The second storage tank group (5a) has the same structure as the first storage tank group (5).

4. The high-pressure in-mold reaction material metering device according to claim 1, characterized in that, The first anti-curing mechanism (6) includes a circulation pump (601) and a protective liquid (602). The circulation pump (601) is connected to the pump piston shaft (405) area of ​​the first metering electric booster pump group (4) through a pipeline to form a protective liquid circulation loop. The second anti-curing mechanism (6a) has the same structure as the first anti-curing mechanism (6).

5. A high-pressure in-mold reaction material metering device according to claim 1, characterized in that, The first pipeline heating mechanism (7) includes a heating oil tank (701), a heater (702), a temperature sensor (703), and a heat circulation pump (704). The heating oil tank (701), the heater (702), the heat circulation pump (704), the built-in pipeline of the rotating boom (8), and the heating jacket of the first metering electric booster pump group (4) are connected in series to form a circulation loop. The second pipeline heating mechanism (7a) has the same structure as the first pipeline heating mechanism (7).

6. The high-pressure in-mold reaction material metering device according to claim 1, characterized in that, The rotating boom (8) includes a material pipe 1 (801), a material pipe 2 (802), a main pipe (803), a material pipe 3 (804), a material pipe 4 (805), a material pipe 5 (806), a material pipe 6 (807), a ball valve (808), a material pipe 8 (809), a mixing head (810), a first storage tank reflux shut-off valve (811), a second storage tank reflux shut-off valve (812), a first hydraulic control valve (813), and a second hydraulic control valve (814). The mixing head (810) is connected to each material pipe through the main pipe (803). The first storage tank reflux shut-off valve (811) corresponds to the reflux pipeline of the first metering electric booster pump group (4), and the second storage tank reflux shut-off valve (812) corresponds to the reflux pipeline of the second metering electric booster pump group (4a). When the mixing head (810) is working, the first storage tank reflux shut-off valve (811) and the second storage tank reflux shut-off valve (812) are in the shut-off state; when not working, the two valves are in the reflux state.

7. A high-pressure in-mold reaction material metering device according to claim 1, characterized in that, The bottom of the main frame (101) is equipped with multiple casters (102). The first metering electric booster pump group (4), the first storage tank group (5), the first pipeline heating mechanism (7), and the first anti-curing mechanism (6) are located on the left side of the main frame (101), the vacuum mechanism (2) is located on the rear side of the control cabinet (1), and the hydraulic mechanism (3) is located on the right side of the main frame (101).

8. A high-pressure in-mold reaction material metering device according to claim 1, characterized in that, The vacuuming mechanism (2) is connected to the inner tank (503) of the first storage tank group (5) and the inner tank of the second storage tank group (5a) respectively, so as to realize the degassing treatment of raw materials.

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