A two-component hp-rtm device and a method of building

Abstract

The application discloses a kind of two-component HP-RTM equipment and building method, including equipment installation frame, three assembly holes on equipment frame are respectively installed cleaning agent tank body, A component stirring tank body and B component stirring tank body;Cross plate is provided with two metering pumping components and two vacuum pumps on cross plate, two vacuum pumps are connected respectively by pipeline the top inlet end of A component stirring tank body and B component stirring tank body, two metering pumping components are connected respectively by pipeline the bottom outlet end of A component stirring tank body and B component stirring tank body;Lifting assembly is set in one side of equipment installation frame, and the action end of lifting assembly is connected with mixed glue injection head;Mixed glue injection head has two feed ports, two return ports and one discharge port, two feed ports are connected respectively by pipeline two metering pumping components;Two return ports are connected respectively by pipeline A component stirring tank body and B component stirring tank body;Control valve is provided in mixed glue injection head, and then equipment building is completed.

Description

TECHNICAL FIELD

[0001] The application relates to the technical field of two-component HP-RTM glue injection, in particular to a two-component HP-RTM device and a building method. BACKGROUND

[0002] The high-pressure resin transfer molding process, referred to as HP-RTM molding process, is a molding process in which resin is injected into a vacuum-sealed mold in which fiber-reinforced materials and pre-embedded parts have been laid in advance, and then resin flows to fill the mold, impregnates, solidifies and is demolded to obtain a composite product. The HP-RTM molding process is applied to many fields such as aerospace and the development direction of fiber composites due to its characteristics of large batch, high quality, low cost and short cycle.

[0003] However, the HP-RTM device is relatively complex, and there is no independent research system from the device to the process. At present, the aspect of building the whole HP-RTM device lacks the completeness of the HP-RTM device and the building method, and there is a lack of building reference for connecting the complete device into a whole. SUMMARY

[0004] The purpose of the present application is to provide a two-component HP-RTM device and a building method to solve the technical problem that, in the prior art, the aspect of building the whole HP-RTM device lacks the completeness of the HP-RTM device and the building method, and there is a lack of building reference for connecting the complete device into a whole.

[0005] To solve the above technical problems, the present application specifically provides the following technical solutions:

[0006] A two-component HP-RTM device, comprising:

[0007] A device mounting frame, three assembly holes are formed in the device mounting frame, and the three assembly holes are respectively used for mounting a cleaning agent tank body, an A-component stirring tank body and a B-component stirring tank body;

[0008] A horizontal plate is arranged at the bottom of the device mounting frame, two metering pump assemblies and two vacuum pumps are arranged on the horizontal plate, the two vacuum pumps are respectively connected to the top inlet ends of the A-component stirring tank body and the B-component stirring tank body through pipelines, and the two metering pump assemblies are respectively connected to the bottom outlet ends of the A-component stirring tank body and the B-component stirring tank body through pipelines;

[0009] A lifting assembly is arranged on one side of the device mounting frame, and the lifting assembly is connected to a mixing glue injection head at an action end, and the lifting assembly is used for adjusting the vertical position of the mixing glue injection head;

[0010] The mixed glue injection head has two feeding ports, two return ports and one discharging port, the two feeding ports are connected with the two metering pumping assemblies respectively through pipelines; the two return ports are connected with the A component stirring tank and the B component stirring tank respectively through pipelines;

[0011] The mixed glue injection head is provided with a control valve, which is used for closing the discharging port, connecting the feeding port and the return port, or closing the return port and connecting the feeding port and the discharging port.

[0012] As a preferred scheme of the present application, the outer surfaces of the A component stirring tank and the B component stirring tank are provided with silica gel heating belts.

[0013] As a preferred scheme of the present application, the metering pumping assembly comprises a gear pump body, a speed reducer and a servo motor, the speed reducer is connected with the rotating shaft of the driving gear of the gear pump body through a shaft coupling, and the servo motor is connected with the speed reducer.

[0014] As a preferred scheme of the present application, the mixed glue injection head comprises a glue injection head body, the glue injection head body is provided with a glue injection head at the bottom, the end of the glue injection head away from the glue injection head body forms a discharging port, the inside of the glue injection head body is provided with two material cavities, the two material cavities are connected with the glue injection head through inner pipelines and communicate with the discharging port;

[0015] The inner wall of the glue injection head body corresponding to each material cavity is provided with a feeding port and a return port which communicate with the material cavity;

[0016] The control valve comprises a first control valve arranged on the glue injection head body corresponding to the feeding port, which is used for controlling the material in the feeding port to enter the material cavity.

[0017] As a preferred scheme of the present application, the inner wall of the glue injection head body corresponding to each material cavity is provided with a cleaning agent injection channel and a compressed air injection channel which communicate with the material cavity, the cleaning agent injection channel is connected with the cleaning agent tank through a pipeline;

[0018] The control valve further comprises a second control valve arranged on the glue injection head body corresponding to the cleaning agent injection channel and a third control valve arranged on the glue injection head body corresponding to the compressed air injection channel;

[0019] The second control valve is used for controlling the cleaning liquid in the cleaning agent injection channel to enter the material cavity;

[0020] The third control valve is used for controlling the compressed air in the compressed air injection channel to enter the material cavity;

[0021] Wherein, by closing the first control valve, sequentially opening the second control valve and the third control valve, the cleaning liquid in the cleaning agent injection channel and the compressed air in the compressed air injection channel enter the material cavity and are discharged through the discharge port.

[0022] As a preferred scheme of the present application, the feeding port is threadedly connected with a feeding seat on an opening on the surface of the glue injection head body, a first cavity and a second cavity are arranged in the feeding seat from bottom to top, the first cavity is connected with the material cavity, a feeding adapter is arranged on the glue injection head body corresponding to the first cavity, and a discharging adapter is arranged on the glue injection head body corresponding to the second cavity.

[0023] A first control valve is arranged on the top of the feeding seat, and the first control valve is used for controlling the communication between the first cavity and the material cavity or controlling the communication between the first cavity and the second cavity.

[0024] The first control valve has a valve rod and a driving part, and the valve rod passes through the second cavity and the first cavity and enters the material cavity.

[0025] Wherein, the driving part drives the upward movement of the valve rod to close the connection between the end of the valve rod and the first cavity and the material cavity, and the connection between the first cavity and the material cavity is closed.

[0026] Or the driving part drives the downward movement of the valve rod to make the end of the valve rod enter the material cavity, the first cavity communicates with the material cavity, and the rod body of the valve rod closes the communication between the first cavity and the second cavity.

[0027] As a preferred scheme of the present application, the glue injection head comprises an inner pipe body and an outer pipe body sleeved on the inner pipe body, the outer pipe body and the inner pipe body at least partially protrude from the top of the outer pipe body, an axial shaft is arranged in the inner pipe body, the axial shaft extends to the end surface of the inner bottom of the outer pipe body, a plurality of guide fins are uniformly arranged on the end surface of the inner bottom of the outer pipe body, and the other ends of the guide fins are connected with the inner wall of the outer pipe body.

[0028] An axial driving part connected with the top of the shaft is arranged in the inner pipe body of the glue injection head body, the axial driving part is used for driving the upward and downward movement of the shaft along the axial direction of the shaft, and drives the upward and downward movement of the outer pipe body relative to the inner pipe body.

[0029] As a preferred scheme of the present application, the axial driving part comprises a sealing cavity arranged in the glue injection head body, a driving piston is arranged in the sealing cavity, the driving piston is connected to the top of the shaft rod, the driving piston divides the sealing cavity into an upper cavity and a lower cavity, the upper cavity is connected to one of the two material cavities through a first pipeline, and the lower cavity is connected to the other material cavity through a second pipeline.

[0030] The high-pressure gas alternately introduced into the two material cavities drives the shaft rod to move up and down by entering the upper cavity through the first pipeline or entering the lower cavity through the second pipeline.

[0031] The present application provides a building method of a two-component HP-RTM device, comprising the following specific steps:

[0032] Step 100: determining the component modules according to the implementation requirements of the two-component HP-RTM device, specifically including a stirring module, a metering module and a mixing module;

[0033] The stirring module comprises an A-component stirring tank body and a B-component stirring tank body.

[0034] The metering module comprises a gear pump or a plunger pump, a speed reducer and a servo motor.

[0035] The mixing module comprises a mixing glue injection head.

[0036] Step 200: selecting each stirring module, metering module and mixing module, specifically including:

[0037] According to the stirring tank volume of the A-component stirring tank body and the B-component stirring tank body and the corresponding component physical property parameters, a stirrer is determined, and the stirrer is three-dimensionally modeled, the obtained model is divided into a static region and a dynamic region in the tank body, and the rotational speed is determined according to the stirring experience of the components; the flow state of the components is determined according to the Reynolds number, and a relevant model is selected for calculation; quantitative and qualitative analysis is performed through setting monitoring points and cloud maps in the model; then, through orthogonal test, the influence degree of the influencing factors is sorted, the model is reconstructed for verification, and the selection of the A-component stirring tank body and the B-component stirring tank body is completed.

[0038] According to the glue injection amount of the mold, the flow of the component delivery of the device is determined, the component delivery power source in the metering module is selected as a gear pump or a plunger pump; the speed reducer and the servo motor are determined according to the load of the device; the rotational speed of the servo motor is converted according to the flow and pressure of the device, and in the case of different ratios and the same pressure, the flow corresponding to the metering module of the A-component stirring tank body and the B-component stirring tank body is distributed, so that the components in the A-component stirring tank body and the B-component stirring tank body can be delivered according to the set ratio.

[0039] According to the component mixing of the A-component stirring tank body and the B-component stirring tank body and the control valve based on the hydraulic control form, the communication states of the feeding port, the return port and the discharging port are controlled, the mixing module is designed, the mixing glue injection head is mixed, and the flow channel of the feeding port, the return port and the discharging port in the mixing glue injection head is communicated;

[0040] Step 300, connecting and building between each module of the equipment according to the component flow direction in the equipment.

[0041] As a preferred scheme of the present application, the glue injection pressure of the mixing glue injection head to the mold is less than 3Mpa, the gear pump is used as the component conveying power source in the metering module; the glue injection pressure is greater than 3Mpa, and the plunger pump is used as the component conveying power source in the metering module.

[0042] Compared with the prior art, the present application has the following beneficial effects:

[0043] The present application provides a HP-RTM equipment building method and equipment connection mode, including the structure optimization from the stirring tank design to the simulation, the selection of the metering system, the design criteria of the glue injection head and the simulation process, and the building according to the component flow direction. The building method can divide the complex equipment into several subsystems, and is helpful for the research and development of the HP-RTM equipment building. BRIEF DESCRIPTION OF DRAWINGS

[0044] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the following will briefly introduce the drawings needed to be used in the embodiments or the prior art description. Obviously, the drawings in the following description are only exemplary, and for those skilled in the art, other drawings can be obtained without creative labor on the basis of the provided drawings.

[0045] Figure 1 It is a system overall structure schematic view of the embodiment of the present application;

[0046] Figure 2 It is a stirring tank overall structure schematic view of the embodiment of the present application;

[0047] Figure 3 It is a filter device structure schematic view of the embodiment of the present application;

[0048] Figure 4 It is a glue injection head main body structure schematic view of the embodiment of the present application;

[0049] Figure 5 It is a glue injection head main body cross section structure schematic view of the embodiment of the present application;

[0050] Figure 6 It is a glue injection head main body part structure schematic view of the embodiment of the present application;

[0051] Figure 7 The injection head main body structure schematic diagram of setting injection head for the embodiment of the application;

[0052] Figure 8 The overall structure schematic diagram of setting up two-component HP-RTM equipment for the embodiment of the application.

[0053] Figure 9 The metering pumping assembly structure schematic diagram for the embodiment of the application;

[0054] Figure 10 The floating degree broken line graph of components at different monitoring points set on the inner pipeline for the embodiment of the application;

[0055] Figure 11 The different injection head axial length result table and broken line graph of injection glue mixing simulation of two symmetrically distributed inner pipelines for the embodiment of the application;

[0056] Figure 12 The injection glue mixing simulation data table of two symmetrically distributed inner pipelines under the spiral pipeline structure of the injection head for the embodiment of the application;

[0057] Figure 13 The structure schematic diagram of the injection head with spiral pipeline structure for the embodiment of the application.

[0058] The numbers in the figure respectively represent as follows:

[0059] 1-injection head main body; 2-injection head; 3-discharge port; 4-material cavity; 5-inner pipeline; 6-feeding port; 7-cleaning agent injection channel; 8-compressed air injection channel; 9-first control valve; 10-second control valve; 11-third control valve; 12-feeding seat; 13-equipment installation frame;

[0060] 14-stirring tank; 15-metering pumping assembly; 16-inlet end; 17-outlet end; 18-feeding barrel; 19-stirrer; 20-filtering device;

[0061] 141-tank body; 142-hopper; 143-upper stirring cavity; 144-lower stirring cavity;

[0062] 191-rotating shaft; 192-stirring paddle; 193-opening; 194-extrusion pipe; 195-extrusion paddle; 196-sealing sleeve;

[0063] 201-columnar shell; 202-rotating seat; 203-driving part; 204-filtering cavity; 205-feeding port; 206-discharge port; 207-filter core main body;

[0064] 21-inner tube; 22-outer tube; 23-shaft; 24-guide wing; 25-sealing plug; 26-axial drive unit; 27-spring;

[0065] 261 - sealed chamber; 262 - driving piston; 263 - upper chamber; 264 - lower chamber; 265 - first pipe; 266 - second pipe;

[0066] 51-horizontal section; 52-inclined section;

[0067] 91-valve stem; 92-driving part;

[0068] 121-first cavity; 122-second cavity; 123-feed adapter; 124-discharge adapter;

[0069] 28-Assembly hole; 29-Cleaning agent tank; 30-Component A mixing tank; 31-Component B mixing tank; 32-Horizontal plate; 33-Vacuum pump; 34-Lifting assembly; 35-Return port; 36-Gear pump body; 37-Reducer; 38-Servo motor; 39-Coupling. DETAILED DESCRIPTION

[0070] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0071] like Figures 1 to 9 As shown, the present invention provides a two-component HP-RTM device, comprising:

[0072] The equipment installation frame 13 has three assembly holes 28, which are used to install a cleaning agent tank 29, a component A mixing tank 30, and a component B mixing tank 31, respectively.

[0073] A horizontal plate 32 is provided at the bottom of the equipment mounting frame 13. Two metering pumping assemblies and two vacuum pumps 33 are provided on the horizontal plate 32. The two vacuum pumps 33 are connected to the top inlet ends of the component A mixing tank 30 and the component B mixing tank 31 through pipelines, respectively. The two metering pumping assemblies 15 are connected to the bottom outlet ends of the component A mixing tank 30 and the component B mixing tank 31 through pipelines, respectively.

[0074] A lifting assembly 34 is provided on one side of the equipment mounting frame 13. The action end of the lifting assembly 34 is connected to a mixing and injecting head. The lifting assembly 34 is used to adjust the vertical position of the mixing and injecting head.

[0075] The mixed glue injection head has two feeding ports 6, two return material ports 35 and one discharging port 3, the two feeding ports 6 are connected with two metering pumping assemblies 15 through pipelines respectively; the two return material ports 35 are connected with the A component stirring tank 30 and the B component stirring tank 31 through pipelines respectively;

[0076] The mixed glue injection head is provided with a control valve, which is used to close the discharging port 3, connect the feeding port 6 and the return material port 35, or close the return material port 35, connect the feeding port 6 and the discharging port 3.

[0077] The outer surfaces of the A component stirring tank 30 and the B component stirring tank 31 are provided with silica gel heating bands.

[0078] The metering pumping assembly includes a gear pump body 36, a speed reducer 37 and a servo motor 38, the speed reducer 37 is connected with the rotating shaft of the driving gear of the gear pump body 36 through a shaft coupling 39, and the servo motor 38 is connected with the speed reducer 37.

[0079] The A component stirring tank 30 and the B component stirring tank 31 in the embodiment are the same in the overall structure, and each includes a stirring tank 14, the bottom of the stirring tank 14 is connected with a metering pumping assembly 15 through a pipeline, the output end of the metering pumping assembly 15 is connected with the inlet end 16 of the glue injection head body 1, the glue injection head body 1 is provided with an outlet end 17 and a discharging port 3 which are connected with the inlet end 16, the outlet end is connected with the top of the stirring tank 14 through a pipeline, and the stirring tank 14 is connected with a feeding barrel 18 through a pipeline.

[0080] The glue injection head body 1 is provided with a first control valve 9, which is used to control the communication between the outlet end or the discharging port 3 and the inlet end 16, and when the outlet end communicates with the inlet end 16, the material is circulated between the stirring tank 14 and the glue injection head body 1 through the delivery of the metering pumping assembly 15.

[0081] The glue material circulation system provided by the embodiment can make the glue material circulate in the glue injection head and the stirring tank when the two-component HP-RTM system does not perform glue injection, so that the glue material can be prevented from being solidified and precipitated when the glue injection is not performed, and when the glue injection is performed, the first control valve 9 only needs to be opened to quickly discharge the material from the discharging port 3, the overall consumption of the glue material is small, and the solidification and precipitation of the glue material can be avoided.

[0082] Therefore, the embodiment provides a specific embodiment of the stirring tank, which aims to separate the stored glue material in the stirring tank 14 from the circulating glue material, so that the circulating glue material enters the stored glue material after being fully stirred and mixed, so that the solidification of the glue material is avoided:

[0083] The tank body 141 is provided with a funnel member 142 inside, the upper part of the funnel member 142 and the inner wall of the tank body 141 form an upper stirring cavity 143, the lower part of the funnel member 142 and the inner wall of the tank body 141 form a lower stirring cavity 144, and the funnel member 142 communicates the upper stirring cavity 143 and the lower stirring cavity 144.

[0084] The outlet end of the glue feeding barrel 18 and the glue injection head main body 1 is connected to the upper stirring cavity 143 through a pipeline.

[0085] The stirring tank 14 is provided with a stirrer 19, the stirrer 19 includes a rotating shaft 191 arranged on the axis of the stirring tank 14, and the rotating shaft 191 is provided with a stirring paddle 192 on the rod of the upper stirring cavity 143 and the lower stirring cavity 144.

[0086] The middle of the funnel member 142 is provided with an opening 193, the bottom of the opening 193 is provided with an extrusion pipe 194, the rotating shaft 191 is provided with an extrusion paddle 195 on the pipe of the extrusion pipe 194, and the material in the upper stirring cavity 143 enters the extrusion pipe 194 and enters the lower stirring cavity 144 under the extrusion of the extrusion paddle 195.

[0087] The funnel member 142 is connected to the inner wall of the tank body 141 through a sealing sleeve 196, the funnel member 142 is connected with a lifting driving device, and the lifting driving device is used for driving the funnel member 142 to lift according to the pressure in the tank body 141.

[0088] The pipeline between the stirring tank 14 and the metering pumping assembly 15 is provided with a filtering device 20, the filtering device 20 includes a cylindrical shell 201, the inside of the cylindrical shell 201 is provided with a rotating seat 202, and a driving part 203 is arranged on the cylindrical shell 201, and the driving part 203 is used for driving the rotating seat 202 to rotate.

[0089] The rotating seat 202 is annularly arrayed with a plurality of filtering cavities 204, the filtering cavities 204 are provided with a filtering body, one end surface of the cylindrical shell 201 is provided with a feeding port 205, the other end is provided with a discharging port 206, and the feeding port 205 and the discharging port 206 are coaxial.

[0090] The driving part 203 drives the rotating seat 202 to rotate, so that one end of the filtering cavity 204 is aligned with the feeding port 205, and the other end of the filtering cavity 204 is aligned with the discharging port 206.

[0091] In the above technical solution, for the circulation form of the glue material, in the state of switching the glue injection and circulation of the glue injection head main body, it is impossible to keep the glue material in the glue injection head in a complete circulation state, that is, the material in the part of the discharging port 3 will be in a solidification phenomenon.

[0092] To this end, the embodiment provides a self-cleaning glue injection head for a two-component HP-RTM glue circulating system, which aims to clean and discharge the residual glue in the discharge port 3 in a self-cleaning manner when the glue injection head body 1 is switched to the glue circulating state, so as to keep the discharge port 3 clean without glue residue.

[0093] Therefore, the glue injection head body 1 in the embodiment is provided with an injection head 2 at the bottom, the end of the injection head 2 away from the glue injection head body 1 forms a discharge port 3, and the inside of the glue injection head body 1 is provided with two material cavities 4, both of which are connected to the injection head 2 through an inner pipeline 5 and communicate with the discharge port 3.

[0094] The inner wall of the glue injection head body 1 corresponding to each material cavity 4 is provided with a feeding port 6, a cleaning agent injection channel 7 and a compressed air injection channel 8 which communicate with the material cavity 4.

[0095] The glue injection head body 1 corresponding to the feeding port 6 is provided with a first control valve 9 for controlling the material in the feeding port 6 to enter the material cavity 4.

[0096] The glue injection head body 1 corresponding to the cleaning agent injection channel 7 is provided with a second control valve 10 for controlling the cleaning liquid in the cleaning agent injection channel 7 to enter the material cavity 4.

[0097] The glue injection head body 1 corresponding to the compressed air injection channel 8 is provided with a third control valve 11 for controlling the compressed air in the compressed air injection channel 8 to enter the material cavity 4.

[0098] Among them, by closing the first control valve 9, sequentially opening the second control valve 10 and the third control valve 11, the cleaning liquid in the cleaning agent injection channel 7 and the compressed air in the compressed air injection channel 8 enter the material cavity 4 and are discharged through the discharge port 3.

[0099] To this end, the embodiment provides a self-cleaning glue injection head for a two-component HP-RTM glue circulating system, which aims to clean and discharge the residual glue in the discharge port 3 in a self-cleaning manner when the glue injection head body 1 is switched to the glue circulating state, so as to keep the discharge port 3 clean without glue residue.

[0100] Then the second control valve 10 closes the cleaning agent injection channel 7, and then the third control valve 11 opens the compressed air injection channel 8, the compressed air enters the material cavity 4, and the DOP cleaning agent and resin and curing agent residues in the material cavity 4 are discharged through the injection head 2, the third control valve 11 closes the compressed air injection channel 8, and the second control valve 10 closes the cleaning agent injection channel 7, realizing the self-cleaning of the pipelines in the glue injection head body 1 and the injection head 2.

[0101] In the embodiment, the cleaning agent injection channel 7 and the compressed air injection channel 8 are connected to the external cleaning agent supply device and the compressed air supply source through quick-release joints.

[0102] The feeding port 6 is connected to the resin or curing agent supply device through a quick-release joint.

[0103] Of course, the glue injection head body 1 provided by the embodiment also includes a resin and curing agent circulation function when the glue injection operation is not performed, so as to avoid the curing of the material in the glue injection head body 1.

[0104] To this end, the feeding port 6 is provided with a feeding seat 12 on the surface of the glue injection head body 1. The feeding seat 12 is provided with a first cavity 121 and a second cavity 122 from top to bottom. The first cavity 121 is connected to the material cavity 4. The glue injection head body 1 is provided with a feeding adapter 123 corresponding to the first cavity 121. The glue injection head body 1 is provided with a discharging adapter 124 corresponding to the second cavity 122. The feeding adapter 123 and the discharging adapter 124 are connected to the external material supply device.

[0105] The first control valve 9 is arranged on the top of the feeding seat 12. The first control valve 9 is used to control the communication between the first cavity 121 and the material cavity 4. At this time, the glue injection head body 1 is in the glue injection operation. The material (resin or curing agent) enters the material cavity 4 through the first cavity 121.

[0106] The communication between the first cavity 121 and the second cavity 122 is controlled. At this time, the glue injection head body 1 is in the circulation state of the glue material. That is, the material enters the first cavity 121 through the feeding adapter 123, then enters the second cavity 122, and then is discharged through the discharging adapter 124.

[0107] In order to more clearly describe the working principle of the first control valve 9, the first control valve 9 in the embodiment has a valve rod 91 and a driving part 92. The valve rod 91 passes through the second cavity 122, the first cavity 121, and enters the material cavity 4.

[0108] Further, the valve rod 91 in the embodiment is used to cooperate with the communication between the first cavity 121 and the second cavity 122, or the communication between the first cavity 121 and the material cavity 4. The specific structure includes a first rod segment, a second rod segment, and an end head connected in sequence. The diameter of the second rod segment is smaller than that of the first rod segment. The diameter of the end head is greater than that of the first rod segment, as shown in the following figure. Figure 2 From top to bottom.

[0109] Meanwhile, the diameter of the end head is larger than the diameter of the opening between the first cavity 121 and the material cavity 4, and the diameter of the second rod segment is smaller than the diameter of the opening between the first cavity 121 and the material cavity 4. When the end head enters the interior of the material cavity 4, the first rod segment closes the communication between the first cavity 121 and the second cavity 122, and the opening between the first cavity 121 and the material cavity 4 is located in the middle of the second rod segment.

[0110] When the end head is clamped or closes the opening between the first cavity 121 and the material cavity 4, the second rod segment is located at the opening between the first cavity 121 and the second cavity 122.

[0111] The driving part 92 drives the upward movement of the valve rod 91 to close the connection between the first cavity 121 and the material cavity 4 by closing the end of the valve rod 91.

[0112] Further, the first control valve 9, the second control valve 10 and the third control valve 11 have the same structure, and all adopt the valve body structure driven by oil pressure to realize the opening and closing of the feed inlet 6, the cleaning agent injection channel 7 and the compressed air injection channel 8.

[0113] The driving part 92 drives the downward movement of the valve rod 91 to enter the material cavity 4 by closing the end of the valve rod 91, and the first cavity 121 and the material cavity 4 are communicated; the rod body of the valve rod 91 closes the communication between the first cavity 121 and the second cavity 122.

[0114] Further, the inner pipeline 5 in the embodiment includes a horizontal segment 51 and an inclined segment 52, one end of the horizontal segment 51 is connected to the material cavity 4, the other end of the horizontal segment 51 is connected to the inclined segment 52, and one end of the inclined segment 52 away from the horizontal segment 51 is connected to the injection head 2.

[0115] Taking the connection between the inclined segment 52 and the injection head 2 as the center, a plurality of inclined segments 52 are uniformly distributed at the circumferential position of the top of the injection head 2, further, two adjacent inclined segments 52 form a "V" shape, and the discharging direction of the plurality of inclined segments 52 is towards the axis of the injection head 2 in the process of entering the injection head 2, so that the discharges of the plurality of inclined segments 52 collide at the axis position of the injection head 2, thereby better mixing and not affecting the mixing and discharging efficiency of the injection head 2.

[0116] In the embodiment, in order to ensure the uniformity of the mixing of the two material cavities 4 (A, B components) into the injection head 2, each material cavity 4 is connected to the injection head 2 through two inner pipelines 5. The connection between the four inner pipelines 5 and the injection head 2 is uniformly distributed along the circumference of the injection head 2, so that the A and B components entering the injection head 2 can be uniformly mixed.

[0117] Of course, in the present embodiment, the default material injection head 2 is a straight pipe structure, and it is found that as the number of inner pipes 5 increases, the axial length of the material injection head 2 needs to be increased to meet the uniform mixing degree of the A and B component rubbers, but there is an upper limit to the length.

[0118] As shown in Figures 10 to 13 , for the simulation of the working state of the material injection head 2 with two symmetrically distributed inner pipes 5, the selection of the flow channel diameter of the material injection head 2: under the condition that the flow is controlled by the regulating valve and the flow remains unchanged, changing the flow channel diameter can change the flow rate and pressure, and the flow channel diameter is selected according to the needs, and the inner pipe diameter of the material injection head 2 in this paper is consistent, and the diameter is 3mm;

[0119] Among them, the influencing factors of the flow channel design are:

[0120] Under the premise that the size of the glue injection head body does not change, the main body is simplified, and the structure of the flow channel is affected by X, Y, θ three factors, X represents the length of the horizontal section 51, Y represents the axial length of the material injection head 2, and θ represents the included angle between the horizontal section 51 and the inclined section 52.

[0121] Single factor analysis is performed on the three factors, and the influence law of the three factors on the mixing uniformity is obtained, as shown in Figure 10 and Figure 11 .

[0122] Among them, the floating degree represents the maximum and minimum values of the volume fraction of component B at the outlet cross section, and the smaller the floating degree, the better the mixing uniformity, and vice versa. The Y factor has the greatest influence on the mixing uniformity, and the specific value is as shown in Figure 10 and Figure 11 .

[0123] As a result: under the condition that the floating degree between the maximum and minimum values of the material body mixing uniformity tends to be stable, the length range of the material injection head 2 is preferably 35-45mm.

[0124] Y from 5mm to 45mm, the mixing uniformity is better and better, but the larger Y is, the larger the glue injection head volume will be, which will cause great inconvenience. Therefore, considering the premise that the length of 45mm does not change, the flow channel structure is optimized to improve the mixing uniformity.

[0125] And by increasing the axial length of the material injection head 2, the mixing degree of the A and B component rubbers can be improved, but at the same time the volume of the structure is also increased, and the outlet pressure of the material injection head 2 is easily affected.

[0126] Therefore, a spiral pipe structure is proposed, and the flow channel diameter of the spiral pipe structure is still 3mm, and the variables are the number of spiral turns and the pitch, as shown in Figure 11 .

[0127] The injection head 2 in this embodiment can be configured as a spiral pipe structure, and the pitch of the spiral pipe structure ranges from 9.17 to 13.75 mm.

[0128] like Figure 12 As shown, the use of a spiral structure will improve the mixing uniformity of the rubber material. Within the limitations of the pipe diameter of the spiral pipe structure and the preferred length range of the injection head 2, when the pitch is 13.75 mm and 3 turns, the optimal mixing uniformity can be achieved, and the outlet pressure of the injection head 2 does not change much.

[0129] This embodiment mainly focuses on the mixing and conveying of component A and B materials, namely resin and curing agent, and provides a specific embodiment of an injection head 2, the purpose of which is to avoid the adhesion of the material inside the injection head 2 and to easily form a solidified mucous film on the inner wall surface of the injection head 2. Before the above-mentioned cleaning process using high-pressure gas, the adhesive film that tends to solidify and adheres to the inner wall of the injection head 2 can be removed.

[0130] To this end, the injection head 2 includes an inner tube body 21 and an outer tube body 22 mounted on the inner tube body 21. The outer tube body 22 and the inner tube body 21 have at least a portion protruding from the top of the outer tube body 22. An axial shaft 23 is arranged inside the inner tube body 21. The shaft 23 extends to the end surface of the inner bottom of the outer tube body 22, and a plurality of guide wings 24 are evenly arranged circumferentially. The other ends of the plurality of guide wings 24 are connected to the inner wall of the outer tube body 22.

[0131] An axial drive portion 26 connected to the top of the shaft 23 is provided inside the dispensing head body 1. The axial drive portion 26 is used to drive the shaft 23 to move up and down along the axial direction of the shaft 23, thereby driving the outer tube 22 to move up and down relative to the inner tube 21.

[0132] Of course, before cleaning the material cavity 4, we can close the connection between the injection head 2 and the inner pipe 5. That is, before injecting the cleaning agent and compressed air into the cleaning agent injection channel 7 and the compressed air injection channel 8, we can close the connection between the inner pipe 5 and the injection head 2, and use the state of the cleaning agent and compressed air instantly entering the material cavity 4 to impact the interior of the material cavity 4, thereby achieving flushing.

[0133] Therefore, the inner pipe 5 needs to be connected to the circumferential side wall of the inner tube body 21 near the top; the top of the inner tube body 21 is open and is installed with a sealing plug 25, which is fixedly sleeved on the shaft 23. The shaft 23 drives the sealing plug 25 to move downward until the connection between the inner pipe 5 and the inner tube body 21 is closed.

[0134] In the process, the sealing plug 25 also adjusts the opening size of the inner pipe 5 into the injection head 2 during the axial displacement, which essentially aims to adjust the flow size of the A, B components into the injection head 2.

[0135] In the embodiment, the inner wall of the injection head body 1 directly above the inner pipe body 21 is provided with a mounting hole for the axial movement of the sealing plug 25 and cooperates with the sealing plug 25, that is, a guide hole providing the stroke of the axial displacement of the sealing plug 25.

[0136] Of course, in the embodiment, the mixed material provided by the injection head 2 can be closed by the sealing plug 25 after completing the injection of the mold. The outer pipe body 22 is driven downward by the axial driving part 26 (the injection head body 1 needs to be cooperated), and is separated from the feed port of the mold, so that the mixed material in the inner pipe body 21 is separated from the material of the feed port. The material will not overflow the discharge port 3 (the bottom of the outer pipe body 22 forms the discharge port 3).

[0137] During the upward movement of the outer pipe body 22 relative to the inner pipe body 21, the inner pipe body 21 will scrape the mixed material remaining on the inner wall of the outer pipe body 22.

[0138] Then the diameter of the bottom of the inner pipe body 21 gradually increases along the axial direction of the inner pipe body 21, until it is the same as the outer diameter of the inner pipe body 21, that is, a horn-shaped opening is formed in the bottom of the inner pipe body 21. The opening of the bottom of the inner pipe body 21 can be in full contact with the inner wall of the outer pipe body 22, and the inner wall of the outer pipe body 22 can be cleaned.

[0139] During the cleaning process of high-pressure gas and cleaning agent, they will be flushed out together, which can avoid the sticking and blocking of the existing injection head 2 due to the residual material film on the inner wall of the injection head 2 after cleaning.

[0140] Further, since the A, B components enter the injection head 2 only after entering the mixing process, the uniformity of the mixing process also affects the final product forming.

[0141] Therefore, when the mixed state of the material injected into the mold is not ideal, the relative length between the inner pipe body 21 and the outer pipe body 22 can be increased to prolong the mixing and conveying length of the A, B components in the injection head 2.

[0142] In the embodiment, high-pressure gas is needed to flush the material cavity 4 with high-pressure gas. In consideration of not introducing a new driving method and reducing the load and control of the driving unit of the injection head body 1, the high-pressure gas can be used as a driving source in the embodiment.

[0143] To this end, the axial driving part 26 comprises a sealed cavity 261 arranged in the glue injection head main body 1, and a driving piston 262 arranged in the sealed cavity 261, the driving piston 262 being connected to the top of the shaft rod 23, and the driving piston 262 dividing the sealed cavity 261 into an upper cavity 263 and a lower cavity 264, the upper cavity 263 being connected to one of the two material cavities 4 through a first pipeline 265, and the lower cavity 264 being connected to the other material cavity 4 through a second pipeline 266.

[0144] The high-pressure gas is alternately introduced into the two material cavities 4, and the high-pressure gas is introduced into the upper cavity 263 through the first pipeline 265 or into the lower cavity 264 through the second pipeline 266, so as to drive the shaft rod 23 to move up and down.

[0145] The first pipeline 265 and the second pipeline 266 are both provided with a gas pressure regulating valve, and further, in order to avoid the influence of the cleaning agent or the glue in the material cavity 4 on the axial driving of the shaft rod 23, or the blockage of the first pipeline 265 and the second pipeline 266, the gas pressure regulating valve is arranged on the first pipeline 265 and the second pipeline 266.

[0146] The main function of the gas pressure regulating valve is that when the high-pressure gas is introduced into the material cavity 4, and after the high-pressure gas reaches the set value, the gas pressure regulating valve can be opened, and then the high-pressure gas in the material cavity 4 enters the upper cavity 263 or the lower cavity 264.

[0147] The high-pressure gas is alternately introduced into the two material cavities 4, that is, the upper cavity 263 is pressurized and the lower cavity 264 is depressurized (or not pressurized), and the shaft rod 23 is displaced along the axial direction downward, or the upper cavity 263 is depressurized (or not pressurized) and the lower cavity 264 is pressurized, and the shaft rod 23 is displaced along the axial direction upward.

[0148] Of course, the opening and closing of the gas pressure regulating valve can also be actively controlled, and the gas pressure regulating valve can be an electromagnetic valve structure.

[0149] The purpose is that after the displacement of the above-mentioned shaft rod 23, the communication between the first pipeline 265 or the second pipeline 266 and the material cavity 4 is closed through the gas pressure regulating valve, so as to maintain the relative position of the shaft rod 23 after the axial movement, that is, to control the relative position between the inner pipe body 21 and the outer pipe body 22, or to close the communication between the inner pipeline 5 and the inner pipe body 21.

[0150] Therefore, the axial length of the sealing plug body 25 needs to be arranged in the axial displacement stroke of the shaft rod 23, that is, during the axial downward displacement of the sealing plug body 25, there is a stroke range in which the inner pipeline 5 and the inner pipe body 21 can maintain the communication state.

[0151] In this embodiment, in order to maintain the stability of the connection between the outer tube body 22 and the glue injection head body 1 and the stability of the displacement of the outer tube body 22, a spring 27 is sleeved on the outer wall of the outer tube body 22, the top of the spring 27 is fixedly connected with the glue injection head body 1, the bottom of the spring 27 is fixedly connected with the outer wall of the outer tube body 22, the spring 27 is used for fixing the outer tube body 22 and maintaining the stability of the outer tube body 22 during the axial displacement relative to the inner tube body 21.

[0152] Supplementarily, the driving part 92 in the application is specifically a hydraulic cylinder or a pneumatic cylinder.

[0153] Further, the embodiment provides a building method of the dual-component HP-RTM equipment, which is used for the connection and building of the general dual-component HP-RTM equipment, and includes the following specific steps.

[0154] In step 100, the component modules are determined according to the implementation requirements of the dual-component HP-RTM equipment, and specifically include the stirring module, the metering module and the mixing module.

[0155] The stirring module includes the A-component stirring tank body and the B-component stirring tank body.

[0156] The metering module includes the gear pump or the plunger pump, the speed reducer and the servo motor.

[0157] The mixing module includes the mixing glue injection head.

[0158] In step 200, the selection of each stirring module, metering module and mixing module is performed, and specifically includes the following steps.

[0159] According to the stirring tank volume of the A-component stirring tank body and the B-component stirring tank body and the corresponding component physical property parameters, the stirrers are determined, three-dimensional modeling is performed on the stirrers, the obtained model is divided into the static domain and the dynamic domain in the tank body, the rotational speed is determined according to the stirring experience of the components, the flow state of the components is determined according to the Reynolds number, the relevant model is selected for calculation, the quantitative and qualitative analysis is performed through the monitoring points and the cloud atlas in the model, the influence degree of the influencing factors is sorted through the orthogonal test, the model is reconstructed for verification, and the selection of the A-component stirring tank body and the B-component stirring tank body is completed.

[0160] According to the glue injection amount of the mold, the flow of the component delivery of the equipment is determined, the gear pump or the plunger pump is selected as the power source for the component delivery in the metering module, the speed reducer and the servo motor are determined according to the load of the equipment, the rotational speed of the servo motor is converted according to the flow and pressure of the equipment, in the case that the ratio and the pressure are the same, the flow corresponding to the metering module of the A-component stirring tank body and the B-component stirring tank body is distributed, so that the components in the A-component stirring tank body and the B-component stirring tank body can be delivered according to the set ratio.

[0161] According to the component mixing of the A-component stirring tank body and the B-component stirring tank body and the control valve based on the hydraulic control form, the communication states of the feeding port, the return port and the discharging port are controlled, the mixing injection head of the mixing module is designed and the flow channel of the mixing injection head is connected to the feeding port, the return port and the discharging port.

[0162] Step 300, connecting and building between each module of the equipment according to the component flow direction in the equipment.

[0163] The injection pressure of the mixing injection head for the mold is less than 3Mpa, the power source of the component conveying in the metering module adopts a gear pump; the injection pressure is greater than 3Mpa, the power source of the component conveying in the metering module adopts a plunger pump.

[0164] The purpose of the gear pump and the plunger pump is to provide pressure; the reducer is selected according to the motor and the pump to ensure normal rotation under the running load; the servo motor adopts a variable frequency motor, which is connected to a frequency converter to realize speed regulation, so as to change the flow size.

[0165] The gear pump is connected to the pipeline below the stirring tank on the left side, the components enter from the left side and are output from the right side after being pressurized; the gear pump is connected to the reducer through a shaft coupling; the reducer is connected to the variable frequency motor through a shaft coupling; the variable frequency motor is connected to the power supply, and the A-component metering module and the B-component metering module are the same.

[0166] The mixing module further comprises a high-pressure mixing injection head. The mixing injection head has A-component and B-component inlet ports, A-component and B-component return ports, hydraulic oil inlets and outlets (hydraulic oil inlets and outlets of the first control valve, the second control valve and the third control valve), a cleaning agent interface, etc., and the internal flow channel is designed as a counter-flow channel.

[0167] Among them, the hydraulic oil mainly realizes the movement of the piston in the control valve, that is, it can control whether the components A and B are mixed or circulated; the A-component and B-component inlet ports are respectively connected to the right outlet of the gear pump / plunger pump through pipelines; the A-component and B-component return ports are respectively connected to the return ports of the stirring tanks through pipelines.

[0168] The lifting assembly connected to the mixing injection head is lifted by a hand-operated screw rod.

[0169] The design method of the stirring tank mainly selects a folding turbine stirrer according to the stirring tank volume and the viscosity of the selected fast curing resin and other parameters, which has the characteristics of axial and radial flow, and is more favorable for uniform stirring and uniform heat transfer.

[0170] According to the "mixing and mixing equipment design selection manual", the design of the related size of the stirrer, and then through the three-dimensional modeling software to carry out three-dimensional modeling of the stirring equipment, including the stirrer, the stirring shaft, and the tank; divide the static and dynamic domains of the fluid, define the walls of the stirring equipment; according to the experience of domestic glue injection machine for resin stirring, determine the speed, set the related boundary conditions; according to the Reynolds number to determine the flow state, select the relevant model for calculation; through the setting of monitoring points and cloud map for quantitative and qualitative analysis. Then through the orthogonal test, the influence degree of the influencing factors is sorted, the model is verified, and the design is completed.

[0171] The system component pressure power source is only pump, so first to determine the flow, pressure range of equipment, according to this range to select gear pump / plunger pump.

[0172] Then according to the load and working condition to determine the reducer and servo motor (variable frequency motor), if the resin viscosity is small, you can consider omitting the reducer, directly use variable frequency motor to connect the pump.

[0173] The frequency converter is selected according to the motor power and load size, such as motor 5.5Kw, the frequency converter power should be ≥5.5Kw. If the working condition often appears overload, the frequency converter power should be selected as large as possible. After the above parts selection is completed, the shaft coupling is connected to form a metering device.

[0174] According to the flow and pressure of the equipment, the speed is converted to realize the automatic distribution of flow under the condition of different ratio and same pressure, so that A, B components can be delivered to the mixing glue head according to the set ratio.

[0175] The lifting assembly includes many, such as gear transmission lifting, hydraulic lifting, transmission wheel lifting, etc. According to the equipment demand to select. For example, this patent uses the method of lead screw lifting. First of all, considering that the weight of the glue injection head is not large, so the lifting mechanism does not need a large bearing capacity, the lead screw transmission can meet the requirements; secondly, the lifting distance precision is required, the lead screw transmission precision is good, which can meet the requirements; thirdly, the structure is simple, the lead screw mechanism can meet the requirements. Therefore, it is necessary to determine which lifting transmission mechanism to use according to different working conditions.

[0176] The device provided by the embodiment runs as follows:

[0177] Start: after starting the device, the frequency converter works, the servo motor rotates, the gear pump rotates, at this time the control valve is used to close the discharge port 3, connect the feed port 6 and the return port 35, and the components A and B are circulated in the flow channel and the stirring tank.

[0178] Heating: The tank body silica gel heating belt (resistance wire is coated with a layer of silica gel material, forming a structure matched with the stirring tank) starts heating, and both can be adjusted independently. The temperature gradient between the inside and outside of the tank is reduced.

[0179] Glue injection: After the mold and tank body are heated to the specified temperature, the electromagnetic valve is controlled to open or close through the man-machine interface, the piston in the glue injection head is offset, the channel is opened, the return port 35 is closed through the control valve, the feed port 6 and the discharge port 3 are connected (for the two components A and B entering the mixing glue injection head), the components A and B collide and mix, and then are punched out under high pressure.

[0180] Cleaning: After the glue injection is completed, the channel connected with the cleaning agent is opened, the channels of components A and B are closed, cleaning is performed, and then compressed air is used to blow out from the discharge port.

[0181] Reset: The cleaning agent channel is closed, the channel is closed, that is, the control valve is used to close the discharge port 3, the feed port 6 and the return port 35 are connected, and the components A and B continue to circulate.

[0182] The application provides a HP-RTM equipment building method and equipment connection mode, which comprises structure optimization from stirring tank design to simulation, metering system selection, glue injection head design criteria and simulation process, and is built according to the component flow direction.

[0183] The above examples are only exemplary embodiments of the application and are not used to limit the application, and the protection scope of the application is defined by the claims. Those skilled in the art can make various modifications or equivalent replacements to the application within the spirit and protection scope of the application, and the modification or equivalent replacement is also regarded as falling within the protection scope of the application.

Claims

1. A two-component HP-RTM device, characterized in that: include: An equipment installation frame (13), wherein three assembly holes (28) are provided on the equipment installation frame (13), and the three assembly holes (28) are used to install a cleaning agent tank (29), a component A stirring tank (30), and a component B stirring tank (31), respectively; A horizontal plate (32) is provided at the bottom of the equipment installation frame (13), and two metering pumping assemblies and two vacuum pumps (33) are provided on the horizontal plate (32), the two vacuum pumps (33) are connected to the top inlet ends of the A component stirring tank (30) and the B component stirring tank (31) through pipelines, and the two metering pumping assemblies (15) are connected to the bottom outlet ends of the A component stirring tank (30) and the B component stirring tank (31) through pipelines; A lifting assembly (34) is provided on one side of the equipment mounting frame (13), an action end of the lifting assembly (34) is connected to a mixing glue injection head, and the lifting assembly (34) is used to adjust the vertical position of the mixing glue injection head; The mixing and injection head has two feed ports (6), two return ports (35) and one discharge port (3), the two feed ports (6) being connected to the two metering pumping assemblies (15) via pipelines; the two return ports (35) being connected to the A component stirring tank (30) and the B component stirring tank (31) via pipelines; A control valve is provided in the mixing and injection head, and the control valve is used to close the discharge port (3) and connect the feed port (6) and the return port (35), or to close the return port (35) and connect the feed port (6) and the discharge port (3).

2. A two-component HP-RTM device according to claim 1, characterized in that: The outer surfaces of the component A stirring tank (30) and the component B stirring tank (31) are both provided with silica gel heating belts.

3. A two-component HP-RTM device according to claim 2, characterized in that: The metering pumping assembly comprises a gear pump body (36), a reducer (37) and a servo motor (38), wherein the reducer (37) is connected to the rotating shaft of the driving gear of the gear pump body (36) via a coupling, and the servo motor (38) is connected to the reducer (37).

4. A two-component HP-RTM device according to claim 3, characterized in that: The mixing glue injection head comprises a glue injection head body (1), a material injection head (2) is provided at the bottom of the glue injection head body (1), an end of the material injection head (2) away from the glue injection head body (1) forms a discharge port (3), and two material cavities (4) are provided inside the glue injection head body (1), and both of the two material cavities (4) are connected to the material injection head (2) through an internal pipe (5) and communicated with the discharge port (3); A feed port (6) and a return port (35) communicating with the material cavity (4) are provided in the inner wall of the glue injection head body (1) corresponding to each material cavity (4); The control valve comprises a first control valve (9) provided on the glue injection head body (1) corresponding to the feed port (6), and is used to control the material in the feed port (6) to enter the material cavity (4).

5. A two-component HP-RTM device according to claim 4, characterized in that: A cleaning agent injection channel (7) and a compressed air injection channel (8) communicating with the material cavity (4) are provided in the inner wall of the glue injection head body (1) corresponding to each material cavity (4), and the cleaning agent injection channel (7) is connected to the cleaning agent tank (29) via a pipeline; The control valve further comprises a second control valve (10) provided on the glue injection head body (1) corresponding to the cleaning agent injection channel (7) and a third control valve (11) provided on the glue injection head body (1) corresponding to the compressed air injection channel (8); The second control valve (10) is used to control the cleaning liquid in the cleaning agent injection channel (7) to enter the material cavity (4); The third control valve (11) is used to control the compressed air in the compressed air injection channel (8) to enter the material cavity (4); By closing the first control valve (9), and opening the second control valve (10) and the third control valve (11) in sequence, the cleaning liquid in the cleaning agent injection channel (7) and the compressed air in the compressed air injection channel (8) enter the material cavity (4) and are discharged through the discharge port (3).

6. A two-component HP-RTM device according to claim 4, characterized in that: The feed port (6) is located on the surface of the glue injection head body (1), and the opening is threadedly connected to the feed seat (12). A first cavity (121) and a second cavity (122) are provided in the feed seat (12) from bottom to top. The first cavity (121) is connected to the material cavity (4). A feed adapter (123) is provided on the glue injection head body (1) corresponding to the first cavity (121). A discharge adapter (124) is provided on the glue injection head body (1) corresponding to the second cavity (122). The first control valve (9) is provided on the top of the feed seat (12), and the first control valve (9) is used to control the communication between the first cavity (121) and the material cavity (4), or to control the communication between the first cavity (121) and the second cavity (122); The first control valve (9) comprises a valve stem (91) and a driving portion (92), wherein the valve stem (91) passes through the second cavity (122) and the first cavity (121) and enters the material cavity (4); The driving portion (92) drives the valve stem (91) to move upward to the end of the valve stem (91) to close the connection between the first cavity (121) and the material cavity (4), thereby closing the connection between the first cavity (121) and the material cavity (4); Alternatively, the driving portion (92) drives the valve stem (91) to move downward until the end of the valve stem (91) enters the material cavity (4), and the first cavity (121) is connected to the material cavity (4); the stem of the valve stem (91) closes the connection between the first cavity (121) and the second cavity (122).

7. A two-component HP-RTM device according to claim 4, characterized in that: The injection head (2) includes an inner tube body (21) and an outer tube body (22) sleeved on the inner tube body (21), wherein the outer tube body (22) and the inner tube body (21) at least partially protrude from the top of the outer tube body (22), and a shaft (23) is axially arranged inside the inner tube body (21), and a plurality of guide wings (24) are evenly arranged circumferentially on the end surface of the shaft (23) extending to the inner bottom of the outer tube body (22), and the other ends of the plurality of guide wings (24) are connected to the inner wall of the outer tube body (22); An axial drive portion (26) connected to the top of the shaft (23) is provided inside the injection head body (1). The axial drive portion (26) is used to drive the shaft (23) to move up and down along the axial direction of the shaft (23), thereby driving the outer tube (22) to move up and down relative to the inner tube (21).

8. A two-component HP-RTM device according to claim 7, characterized in that: The axial drive portion (26) comprises a sealed cavity (261) provided in the injection head body (1), a driving piston (262) being provided in the sealed cavity (261), the driving piston (262) being connected to the top of the shaft (23), the driving piston (262) dividing the sealed cavity (261) into an upper cavity (263) and a lower cavity (264), the upper cavity (263) being connected to one of the two material cavities (4) via a first pipe (265), and the lower cavity (264) being connected to the other of the two material cavities (4) via a second pipe (266); The high-pressure gas alternately introduced into the two material chambers (4) allows the high-pressure gas to enter the upper chamber (263) through the first pipe (265) or enter the lower chamber (264) through the second pipe (266), thereby driving the shaft (23) to move up and down.

9. A method for constructing a two-component HP-RTM device, characterized in that: The specific steps include: Step 100: Determine the component modules according to the requirements for realizing the two-component HP-RTM equipment, specifically including a stirring module, a metering module, and a mixing module; The stirring module includes a stirring tank for component A and a stirring tank for component B; The metering module includes a gear pump or a plunger pump, a reducer and a servo motor; The mixing module includes a mixing and dispensing head; Step 200, selecting each stirring module, metering module and mixing module, specifically includes: The agitator is determined based on the mixing tank volumes of the component A and component B mixing tanks and the physicochemical properties of the corresponding components. A three-dimensional model is then constructed for the agitator. The obtained model is divided into static and dynamic domains within the tank, and the rotational speed is determined based on experience with the mixing of the components. The flow state of the components is determined based on the Reynolds number, and the relevant model is selected for calculation. Quantitative and qualitative analysis is performed by setting monitoring points and cloud maps in the model. Then, through orthogonal experiments, the degree of influence of the influencing factors is ranked, and the model is reconstructed for verification, completing the selection of the component A and component B mixing tanks. Determine the component delivery flow rate of the equipment based on the injection volume of the mold, and select the component delivery power source in the metering module as a gear pump or plunger pump; determine the reducer and servo motor based on the load of the equipment; convert the servo motor speed based on the flow rate and pressure of the equipment. Under the conditions of different ratios and the same pressure, allocate the corresponding flow rate of the metering modules of the component A mixing tank and the component B mixing tank to ensure that the components in the component A mixing tank and the component B mixing tank can be delivered according to the set ratio; According to the mixing of the components of the A component mixing tank and the B component mixing tank and the control valve based on the hydraulic control form, the connection status of the feed port, the return port and the discharge port is controlled, and the mixing injection head of the mixing module and the flow channel inside the mixing injection head connecting the feed port, the return port and the discharge port are designed; Step 300: Build connections between modules of the device according to the flow direction of components in the device.

10. The method for constructing a two-component HP-RTM device according to claim 9, characterized in that: When the injection pressure of the mixed injection head for the mold is less than 3Mpa, the component delivery power source in the metering module adopts a gear pump; when the injection pressure is greater than 3Mpa, the component delivery power source in the metering module adopts a plunger pump.

Images