Filling and storage equipment and its application in the production of polyurethane foam sealant

Abstract

The present invention relates to the technical field of filling and storage equipment, in particular to filling and storage equipment and its application in the production of polyurethane foam sealant. The filling and storage equipment includes a storage tank and a filling assembly. A heating assembly is arranged inside the storage tank. A stirring assembly is arranged at the top of the heating assembly inside the storage tank. A scraping assembly is also arranged on the inner wall of the storage tank. The heating assembly includes an oil guide pipe, and a scraping ring is slidably arranged on the oil guide pipe. Micro hydraulic cylinders are arranged on both sides of the oil guide pipe on the inner wall of the storage tank. With the assistance of a pressure sensor, the viscosity of the raw materials in the storage tank can be indirectly detected, and multiple pressure sensors cooperate to detect the liquid level of the raw materials in the storage tank. When the liquid level drops below the stirring plate, the detection value of the pressure sensor on the stirring plate drops to 0. At this time, by controlling the inclination angle of the stirring plate, the scraping plate can clean the inner wall of the storage tank.

Description

Technical Field

[0001] The present invention relates to the technical field of filling and storage equipment, in particular to filling and storage equipment and its application in the production of polyurethane foam sealant. Background Art

[0002] Polyurethane foam sealant is a product of the cross - combination of aerosol technology and polyurethane foam technology. It is a special polyurethane product that fills components such as polyurethane prepolymer, foaming agent, and catalyst in a pressure - resistant aerosol can. When the material is ejected from the aerosol can, the foamed polyurethane material will rapidly expand and undergo a curing reaction with moisture in the air or in the substrate it contacts to form foam. The cured polyurethane foam sealant foam has multiple effects such as caulking, bonding, sealing, heat insulation, and sound absorption. It is an environmentally friendly, energy - saving, and convenient building material, applicable to sealing and plugging, filling gaps, fixing and bonding, heat preservation and sound insulation, especially suitable for sealing and waterproofing between plastic - steel or aluminum alloy doors and windows and walls.

[0003] A filling and storage device for the production and processing of a dyeing assistant and its usage method with the patent application number CN202211696277.3, including a storage tank, a transfer tank, and a closing cover. A transfer tank is arranged inside the storage tank. A material - holding block is installed on the outer wall of the storage tank. A feed pipe is installed on the inner top wall of the transfer tank. A first motor is installed on the inner wall of the transfer tank, and a gear is installed at the output end of the first motor. However, when this device is in use, raw materials are likely to adhere to the inner wall of the storage tank, which easily causes waste of materials.

[0004] A new type of silicone oil filling and storage device with the patent application number CN201810808696.9, including an ultraviolet sterilization device, a tank body, a coarse filtration device, and a fine filtration device. The tank body is equipped with a liquid inlet pipe, an infrared thermometer, a stirring shaft, and an electric steam valve; the ultraviolet sterilization device is connected to the liquid inlet pipe; the fine filtration device and the ultraviolet sterilization device, and the fine filtration device is also connected to a delivery pump. Similarly, when this device is in use, raw materials are likely to adhere to the inner wall of the storage tank, which easily causes waste of materials.

[0005] During the process of discharging the liquid raw materials in the storage tank for filling, as the liquid raw materials in the storage tank are discharged, the inner wall of the storage tank will adhere to the raw materials, and the adhered raw materials will affect the ratio of the next batch of raw materials and the production effect of polyurethane foam. Moreover, when heating through the oil guide pipe at the bottom of the tank body, it is difficult to uniformly heat the raw materials in the storage tank, and after the liquid raw materials in the storage tank are discharged, liquid raw materials will adhere to both the oil guide pipe and the stirring plate. Summary of the Invention

[0006] To solve the above - mentioned technical problems, the present invention provides a filling and storage device and its application in the production of polyurethane foam sealant.

[0007] A filling and storage device of the present invention includes a storage tank and a filling component. A heating component is arranged inside the storage tank. A stirring component is arranged on top of the heating component inside the storage tank. A scraping component is also arranged on the inner wall of the storage tank.

[0008] The heating component includes an oil guiding pipe. A scraping ring is slidably arranged on the oil guiding pipe. Micro hydraulic cylinders are arranged on both sides of the oil guiding pipe on the inner wall of the storage tank. The output end of the micro hydraulic cylinder is connected to the scraping ring.

[0009] The stirring component includes a rotating rod. A cavity is arranged in the middle of the rotating rod. A connecting shaft is rotatably arranged on the rotating rod. Stirring plates are arranged on the connecting shaft. A driving component is arranged in the cavity. Both sides of the stirring plate are arc-shaped, and pressure sensors are arranged on the arc-shaped surfaces on both sides of the stirring plate.

[0010] The scraping component includes a limiting ring. An annular groove is arranged on the inner wall of the storage tank. The limiting ring rotates in the annular groove. A scraping plate is arranged on the limiting ring. A transmission rod is arranged inside the limiting ring.

[0011] By setting components such as stirring plates, transmission rods, pressure sensors, and scraping plates, the viscosity of the raw materials in the storage tank can be indirectly detected with the assistance of the pressure sensors. And multiple pressure sensors cooperate to detect the liquid level of the raw materials in the storage tank. When the liquid level drops below the stirring plate, the detection value of the pressure sensor on this stirring plate drops to 0. At this time, by controlling the inclination angle of the stirring plate, the scraping plate can clean the inner wall of the storage tank, and the stirring plate will also be knocked by the transmission rod to form vibration to clean the stirring plate. And when all the pressure sensors drop to 0, by controlling the micro hydraulic cylinder, the scraping ring reciprocates to ensure that the raw materials at the bottom of the storage tank remain flowing and can clean the oil guiding pipe, so that the raw materials in the storage tank are fully utilized.

[0012] Preferably, the filling component includes a first hydraulic cylinder. A support rod is arranged on the top of the first hydraulic cylinder. The upper end of the support rod is provided with a mounting plate. A sleeve is arranged on the top of the mounting plate. A three-way valve is arranged at the lower end of the storage tank. The three-way valve is communicated with the sleeve. A hose is also arranged at the side end of the three-way valve. An adjusting component is also arranged at the side end of the three-way valve.

[0013] Preferably, a connecting rod is arranged at the output end of the first hydraulic cylinder. A piston plate is arranged inside the sleeve. The connecting rod passes through the mounting plate and is inserted into the sleeve. The upper end of the connecting rod is connected to the piston plate. A filling head is arranged at the end of the hose. A second hydraulic cylinder is arranged at the upper end of the filling head. The output end of the second hydraulic cylinder is connected to the filling head.

[0014] Preferably, the adjusting assembly includes a control rod inserted into the three-way valve. An installation plate is provided on one side of the three-way valve for the control rod. A transmission plate is arranged on the control rod. A third hydraulic cylinder is rotatably arranged at the lower end of the installation plate, and the output end of the third hydraulic cylinder is rotatably connected to the transmission plate.

[0015] Preferably, the driving assembly includes a driving motor disposed in the cavity. A first bevel gear is provided at the output end of the driving motor. A second bevel gear is arranged on one side of the connecting shaft located in the cavity. The first bevel gear and the second bevel gear are engaged for transmission.

[0016] Preferably, a rotating motor is provided at the top of the storage tank, and the output end of the rotating motor is connected to a rotating rod. A feed pipe is provided at the upper side of the storage tank.

[0017] Preferably, the transmission rod is elastic, and the scraping plate is attached to the inner wall of the storage tank. When the stirring plate rotates with the rotating rod, the stirring plate will contact the transmission rod when it deflects to an angle of 60° with the horizontal plane.

[0018] The present invention also provides an application of the filling and storage device in the production of polyurethane foam sealant, using the filling and storage device to fill and process the raw materials for producing polyurethane foam sealant.

[0019] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0020] 1. By providing components such as the first hydraulic cylinder, three-way valve, filling head, second hydraulic cylinder, and third hydraulic cylinder, through the cooperation of the first hydraulic cylinder, second hydraulic cylinder, and third hydraulic cylinder, the raw materials in the storage tank can be pumped into the sleeve, and then the raw materials in the sleeve are pressed into the hose, and the raw materials are ejected from the filling head for filling and processing.

[0021] 2. By providing components such as the stirring plate, pressure sensor, and rotating rod, when the stirring plate starts to stir the liquid raw materials, the detected value of the pressure sensor will increase and exceed the threshold. At this time, the equipment controls the driving motor to start, so that the angle between the stirring plate and the horizontal plane increases but does not exceed 60°. When the angle between the stirring plate and the horizontal plane increases, the stirring effect of the stirring plate on the liquid raw materials in the storage tank is enhanced with the rotation of the rotating rod, enabling the viscous liquid raw materials to be better mixed and heated.

[0022] 3. By setting components such as a stirring plate, a pressure sensor, and a rotating rod, as the filling progresses, the liquid level of the raw materials in the storage tank gradually drops. When the liquid level drops below the stirring plate, the detected value of the pressure sensor at the side end of the stirring plate will decrease to 0. At this time, the equipment controls the driving motor to start, increasing the inclination angle of the stirring plate to more than 60° but not exceeding 90°. The stirring plate will contact the transmission rod, causing the limiting ring to rotate. The rotation of the limiting ring will move the scraping plate, and the movement of the scraping plate will scrape the raw materials on the inner wall of the storage tank. The scraped raw materials will fall to the bottom of the storage tank.

[0023] 4. By setting components such as a stirring plate, a pressure sensor, and a rotating rod, as the filling progresses, when the raw materials in the storage tank are lower than the lowermost stirring plate, the detected values of all the pressure sensors will drop to 0. At this time, the equipment controls the micro hydraulic cylinder to start reciprocating for a set time, thereby causing the scraping ring to rotate reciprocally. The reciprocal rotation of the scraping ring will push and stir the raw materials near the oil guide pipe, and when the liquid level is lower than the oil guide pipe, the reciprocal movement of the scraping ring will scrape the raw materials adhered to the surface of the oil guide pipe, ensuring that the raw materials can be fully utilized. Brief Description of the Drawings

[0024] Figure 1 is a schematic structural view of the present invention;

[0025] Figure 2 is a schematic structural view of another perspective of the present invention;

[0026] Figure 3 is a schematic structural view of the scraping component and the stirring component of the present invention;

[0027] Figure 4 is of the present invention Figure 2 the enlarged structural view of part A in;

[0028] Figure 5 is a schematic structural view of components such as the filling head and the hose of the present invention;

[0029] Figure 6 is a schematic structural view of components such as the first bevel gear and the second bevel gear of the present invention.

[0030] Reference numerals: 1, storage tank; 2, filling assembly; 3, heating assembly; 4, stirring assembly; 5, scraping assembly; 6, adjusting assembly; 7, rotating motor; 8, feed pipe; 201, first hydraulic cylinder; 202, support rod; 203, mounting plate; 204, sleeve; 205, three-way valve; 206, hose; 207, connecting rod; 208, filling head; 209, second hydraulic cylinder; 301, oil guide pipe; 302, scraping ring; 303, micro hydraulic cylinder; 401, rotating rod; 402, cavity; 403, connecting shaft; 404, stirring plate; 405, driving motor; 406, first bevel gear; 407, second bevel gear; 501, limiting ring; 502, scraping plate; 503, transmission rod; 601, control rod; 602, mounting plate; 603, transmission plate; 604, third hydraulic cylinder. Detailed implementation manners

[0031] To facilitate the understanding of the present invention, the present invention will be described more comprehensively below with reference to the relevant drawings. The present invention can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, these embodiments are provided to make the disclosure of the present invention more thorough and comprehensive.

[0032] In the production of polyurethane foam sealant, it is necessary to season the raw materials first. During the seasoning process, the purchased liquid raw materials of chlorinated paraffin and polyether polyol are stored in storage tanks, and the purchased barreled silicone oil (organosilicon surfactant) and catalyst (bis(morpholinyl)diethyl ether) are temporarily stored in the seasoning workshop. When they are mixed and used, the automatic control metering ratio is carried out through the pipeline with valves connecting the storage tank, plastic barrel and automatic control metering hopper. They are respectively pumped from the storage tank and plastic barrel into the metering hopper for batching, and the entire feeding pipeline and metering hopper are kept in a closed state.

[0033] The liquid raw materials of polyether polyol and chlorinated paraffin proportioned by the metering hopper enter the seasoning kettle with heating rods at the bottom through a closed pipeline and a control valve (the heat source is provided by the heat-conducting oil heated by electricity through the pipeline at the bottom of the tank, and the heating temperature does not exceed 40°C. The purpose of heating is to make the viscosity of the liquid raw materials thinner without affecting their physical and chemical properties) for premixing. At the same time, the liquid raw materials of silicone oil (organosilicon surfactant) and catalyst (bis(morpholinyl)diethyl ether) proportioned by the metering hopper enter the seasoning kettle with heating rods at the bottom through a closed pipeline and a control valve (the heat source is provided by the heat-conducting oil heated by electricity through the pipeline at the bottom of the tank, and the heating temperature does not exceed 40°C. The purpose of heating is to make the viscosity of the liquid raw materials thinner without affecting their physical and chemical properties) for premixing. Then, the two groups of premixed raw materials are pumped into the white material storage tank with heating rods at the bottom through the discharge pipeline and control valve at the bottom of the seasoning kettle (the heat source is provided by the heat-conducting oil heated by electricity through the pipeline at the bottom of the tank, and the heating temperature does not exceed 40°C. The purpose of heating is to make the viscosity of the liquid raw materials thinner without affecting their physical and chemical properties). After being mixed evenly, they are filled.

[0034] During the process of discharging the liquid raw material in the storage tank 1 for filling, as the liquid raw material in the storage tank 1 is discharged, the inner wall of the storage tank 1 will adhere to the raw material, and the adhered raw material will affect the proportioning of the next raw material and the production effect of polyurethane foam. Moreover, when heating through the oil guide pipe 301 at the bottom of the tank body, it is difficult to uniformly heat the raw material in the storage tank 1. And after the liquid raw material in the storage tank 1 is discharged, the problem of liquid raw material adhesion will occur on both the oil guide pipe 301 and the stirring plate 404. For this reason, the following solutions are proposed:

[0035] As Figures 1 to 6 shown, the filling and storage device of the present invention includes a storage tank 1 and a filling assembly 2. A heating assembly 3 is arranged in the storage tank 1, a stirring assembly 4 is arranged on top of the heating assembly 3 in the storage tank 1, and a scraping assembly 5 is also arranged on the inner wall of the storage tank 1. The storage tank 1 is used to store the liquid raw material, the filling assembly 2 is used to fill the liquid raw material, the heating assembly 3 is used to heat the liquid raw material in the storage tank 1, and the heating temperature does not exceed 40°C. The stirring assembly 4 is used to stir and mix the liquid raw material in the storage tank 1 so that the liquid raw material can be uniformly mixed and evenly heated, and the scraping assembly 5 can scrape the liquid raw material adhered to the inner wall of the storage tank 1 to avoid the influence of the remaining liquid raw material on subsequent production.

[0036] The heating assembly 3 includes an oil guide pipe 301, a scraping ring 302 is slidably arranged on the oil guide pipe 301, micro hydraulic cylinders 303 are arranged on both sides of the oil guide pipe 301 on the inner wall of the storage tank 1, and the output end of the micro hydraulic cylinder 303 is connected to the scraping ring 302. The heat-conducting oil after electric heating will pass through the oil guide pipe 301, so that the oil guide pipe 301 can heat the liquid raw material in the storage tank 1. And after the liquid raw material in the storage tank 1 is discharged, the micro hydraulic cylinder 303 is started, and the output end of the micro hydraulic cylinder 303 will drive the scraping ring 302 to move along the oil guide pipe 301, and the movement of the scraping ring 302 will scrape the liquid raw material adhered to the oil guide pipe 301.

[0037] The stirring assembly 4 includes a rotating rod 401. A cavity 402 is provided in the middle of the rotating rod 401. A connecting shaft 403 is rotatably provided on the rotating rod 401. A stirring plate 404 is provided on the connecting shaft 403. A driving assembly is provided in the cavity 402. The driving assembly includes a driving motor 405. The driving motor 405 is arranged in the cavity 402. A first bevel gear 406 is provided at the output end of the driving motor 405. A second bevel gear 407 is provided on one side of the connecting shaft 403 located in the cavity 402. The first bevel gear 406 and the second bevel gear 407 are in meshing transmission. When the rotating rod 401 rotates, the stirring plate 404 will be driven to rotate with the assistance of the connecting shaft 403. The rotation of the stirring plate 404 can stir the liquid raw materials in the storage tank 1, making the liquid raw materials in the storage tank 1 evenly mixed. After starting the driving motor 405, the output end of the driving motor 405 will drive the rotation of the first bevel gear 406. The rotation of the first bevel gear 406 drives the rotation of the second bevel gear 407 through meshing transmission. The rotation of the second bevel gear 407 drives the rotation of the connecting shaft 403, thereby changing the inclination angle of the stirring plate 404. When the inclination angle of the stirring plate 404 changes, the stirring effect of the stirring plate 404 will also change accordingly.

[0038] A rotating motor 7 is provided at the top of the storage tank 1. The output end of the rotating motor 7 is connected to the rotating rod 401. A feed pipe 8 is provided at the upper side of the storage tank 1. When the rotating motor 7 is started, the output end of the rotating motor 7 will drive the rotation of the rotating rod 401, providing power for the rotation of the rotating rod 401 through the rotating motor 7, making the rotation of the rotating rod 401 stable and controllable. The liquid raw materials can be input into the storage tank 1 with the assistance of the feed pipe 8.

[0039] Both sides of the stirring plate 404 are arc-shaped, and pressure sensors are provided on the arc-shaped surfaces on both sides of the stirring plate 404. When the stirring plate 404 rotates with the rotating rod 401, the liquid raw materials in the storage tank 1 will exert pressure on the pressure sensors at the side ends of the stirring plate 404, thereby increasing the detected values of the pressure sensors. The more viscous the liquid raw materials are, the larger the corresponding detected values of the pressure sensors will be. And when the inclination angle of the stirring plate 404 changes, since both sides of the stirring plate 404 are arc-shaped and the pressure sensors are also arc-shaped and fit on the side of the stirring plate 404, therefore, the change in the inclination angle of the stirring plate 404 will not have too much impact on the detected values of the pressure sensors.

[0040] The scraping component 5 includes a limiting ring 501. An annular groove is provided on the inner wall of the storage tank 1. The limiting ring 501 rotates in the annular groove. A scraping plate 502 is provided on the limiting ring 501. A transmission rod 503 is provided inside the limiting ring 501. When the limiting ring 501 rotates in the annular groove, the limiting ring 501 drives the scraping plate 502 to move. The transmission rod 503 is elastic. The scraping plate 502 is attached to the inner wall of the storage tank 1. During the rotation of the stirring plate 404 with the rotating rod 401, when the stirring plate 404 deflects to an angle of 60° with the horizontal plane, it will contact the transmission rod 503. The movement of the scraping plate 502 scrapes the liquid raw materials adhering to the inner wall of the storage tank 1. And when the angle between the stirring plate 404 and the horizontal plane is greater than or equal to 60°, when the stirring plate 404 rotates with the rotating rod 401 and passes through the transmission rod 503, the stirring plate 404 will push the transmission rod 503 to move, thereby causing the limiting ring 501 to rotate.

[0041] The filling component 2 includes a first hydraulic cylinder 201. A support rod 202 is provided at the top of the first hydraulic cylinder 201. An installation disc 203 is provided at the upper end of the support rod 202. A sleeve 204 is provided at the top of the installation disc 203. A three-way valve 205 is provided at the lower end of the storage tank 1. The three-way valve 205 is communicated with the sleeve 204. A hose 206 is also provided at the side end of the three-way valve 205. An adjusting component 6 is also provided at the side end of the three-way valve 205. The three-way valve 205 is controlled by the adjusting component 6 to communicate the storage tank 1 with the sleeve 204, or to communicate the sleeve 204 with the hose 206.

[0042] A connecting rod 207 is provided at the output end of the first hydraulic cylinder 201. A piston plate is arranged inside the sleeve 204. The connecting rod 207 passes through the mounting plate 203 and is inserted into the sleeve 204. The upper end of the connecting rod 207 is connected to the piston plate. The end of the hose 206 is provided with a filling head 208. A second hydraulic cylinder 209 is arranged at the upper end of the filling head 208. The output end of the second hydraulic cylinder 209 is connected to the filling head 208. The three-way valve 205 is controlled by the adjusting assembly 6 to connect the storage tank 1 with the sleeve 204. When the first hydraulic cylinder 201 is started forward, the connecting rod 207 will move downward. The downward movement of the connecting rod 207, through the cooperation of the piston plate inside the sleeve 204 and the sleeve 204, causes the liquid raw material in the storage tank 1 to be sucked into the sleeve 204. Then, the three-way valve 205 is controlled by the adjusting assembly 6 to connect the hose 206 with the sleeve 204, and the first hydraulic cylinder 201 is started in reverse. The connecting rod 207 will move upward. The upward movement of the connecting rod 207, through the cooperation of the piston plate inside the sleeve 204 and the sleeve 204, causes the liquid raw material in the sleeve 204 to be pressed into the hose 206. Then, the liquid raw material in the hose 206 is ejected through the filling head 208 for filling. And by controlling the first hydraulic cylinder 201, the amount of each filling can be accurately controlled. The second hydraulic cylinder 209 is often installed on the transportation line of the empty finished product tank. After the second hydraulic cylinder 209 is started, the filling head 208 will descend to fit with the empty finished product tank, enabling the filling head 208 to perform filling better.

[0043] The adjusting assembly 6 includes a control rod 601. The control rod 601 is inserted into the three-way valve 205. A mounting plate 602 is arranged on one side of the three-way valve 205 where the control rod 601 is located. A transmission plate 603 is arranged on the control rod 601. A third hydraulic cylinder 604 is rotatably arranged at the lower end of the mounting plate 602. The output end of the third hydraulic cylinder 604 is rotatably connected to the transmission plate 603. When the third hydraulic cylinder 604 is started, the output end of the third hydraulic cylinder 604 will drive the deflection of the transmission plate 603. When the transmission plate 603 deflects, the control rod 601 will rotate. The rotation of the control rod 601 controls the three-way valve 205 to connect the storage tank 1 with the sleeve 204, or to connect the sleeve 204 with the hose 206.

[0044] During the use of the present invention, two pre-mixed raw materials are pumped into the storage tank 1 through the feed pipe 8. Then, the rotating motor 7 is started, and the output end of the rotating motor 7 drives the rotation of the rotating rod 401. The rotation of the rotating rod 401, with the assistance of the connecting shaft 403, causes the stirring plate 404 to rotate (the initial angle between the stirring plate 404 and the horizontal plane is 30°). During the rotation of the stirring plate 404 along with the rotating rod 401, the stirring plate 404 will stir and mix the raw materials in the storage tank 1. At the same time, the heat-conducting oil after electric heating will pass through the oil conduction pipe 301, so that the oil conduction pipe 301 can heat the liquid raw materials in the storage tank 1. And with the stirring of the liquid raw materials by the stirring plate 404, the liquid raw materials can be heated more evenly.

[0045] When the stirring plate 404 starts to stir the liquid raw materials, the liquid raw materials will act on the pressure sensor. At this time, the detected value of the pressure sensor corresponds to the viscosity of the liquid raw materials. As the heating and stirring continue, the detected value of the pressure sensor will gradually decrease.

[0046] When the stirring plate 404 just starts to stir the liquid raw materials, the detected value of the pressure sensor will increase and exceed the threshold, indicating that the viscosity of the liquid raw materials in the storage tank 1 is high at this time. At this time, the equipment controls the driving motor 405 to start. The output end of the driving motor 405 will drive the rotation of the first bevel gear 406. The rotation of the first bevel gear 406 drives the rotation of the second bevel gear 407 through meshing transmission. The rotation of the second bevel gear 407 will cause the connecting shaft 403 to rotate, so that the angle between the stirring plate 404 and the horizontal plane increases but does not exceed 60°. The difference between the detected value of the pressure sensor and the threshold corresponds to the angle between the stirring plate 404 and the horizontal plane. When the angle between the stirring plate 404 and the horizontal plane increases, the stirring effect of the stirring plate 404 on the liquid raw materials in the storage tank 1 along with the rotation of the rotating rod 401 is enhanced, enabling the viscous liquid raw materials to be better mixed and heated.

[0047] As the stirring and heating proceed, the viscosity of the liquid raw materials in the storage tank 1 will decrease, making the liquid raw materials thinner. Therefore, the detected value of the pressure sensor will gradually decrease. When the decrease in the detected value of the pressure sensor is less than the threshold, it indicates that the liquid raw materials in the storage tank 1 have reached the filling requirement at this time. At this time, the equipment controls the driving motor 405 to reverse, so that the angle between the stirring plate 404 and the horizontal plane becomes smaller but remains greater than 0°, weakening the stirring effect of the stirring plate 404. On the one hand, it ensures that the liquid raw materials in the storage tank 1 remain in a flowing state. On the other hand, it avoids the situation where the liquid raw materials in the storage tank 1 are in a state of being lower in the middle and higher around the edges due to excessive stirring, and avoids increasing the adhesion area of the liquid raw materials on the inner wall of the storage tank 1.

[0048] When the detected value of the pressure sensor is less than the threshold value, the third hydraulic cylinder 604 is activated, causing the transmission plate 603 to deflect, and then causing the control rod 601 to rotate. The rotation of the control rod 601 controls the three-way valve 205, connecting the sleeve 204 to the storage tank 1. Then, the first hydraulic cylinder 201 is activated to move the connecting rod 207 downward. The downward movement of the connecting rod 207 cooperates with the piston plate to pump the liquid raw material in the storage tank 1 into the sleeve 204. Then, by controlling the third hydraulic cylinder 604 again, the three-way valve 205 is controlled to connect the sleeve 204 to the hose 206. At the same time, the second hydraulic cylinder 209 is activated to make the filling head 208 fit with the mouth of the finished product tank. Then, the first hydraulic cylinder 201 operates in reverse, moving the connecting rod 207 upward, pressing the liquid raw material in the sleeve 204 into the hose 206, and the filling head 208 fills the raw material into the finished product tank.

[0049] As the filling progresses, the liquid level of the raw material in the storage tank 1 gradually drops. When the liquid level drops below the stirring plate 404, the detected value of the pressure sensor on the side end of the stirring plate 404 will drop to 0. At this time, the equipment controls the drive motor 405 to start, increasing the tilt angle of the stirring plate 404 to more than 60° but not exceeding 90°. At this time, during the rotation of the stirring plate 404 along with the rotating rod 401, the stirring plate 404 will contact the transmission rod 503. Therefore, the stirring plate 404 will push the transmission rod 503 to move, causing the limiting ring 501 to rotate. The rotation of the limiting ring 501 will move the scraping plate 502, and the movement of the scraping plate 502 will scrape the raw material on the inner wall of the storage tank 1, and the scraped raw material will fall to the bottom of the storage tank 1.

[0050] When the tilt angle of the stirring plate 404 just increases beyond 60°, the contact between the stirring plate 404 and the transmission rod 503 cannot yet push the transmission rod 503 to move. Since the transmission rod 503 is elastic, when the transmission rod 503 contacts the stirring plate 404, it will cross over the stirring plate 404, causing the stirring plate 404 to vibrate. The vibration of the stirring plate 404 will shake off the raw material adhering to the stirring plate 404. And because the stirring plate 404 rotates along with the rotating rod 401, affected by the centrifugal force, the raw material adhering to the stirring plate 404 will gradually move towards the transmission rod 503. When the transmission rod 503 crosses over the stirring plate 404 close to it, the transmission rod 503 can scrape off the raw material at the end of the stirring plate 404. When the tilt angle of the stirring plate 404 increases close to 90°, the stirring plate 404 can stably push the transmission rod 503 to move.

[0051] As the filling progresses, when the raw materials in storage tank 1 are lower than the lowermost stirring plate 404, the detected values of all pressure sensors will drop to 0. At this time, the equipment control makes the tilt angle of all stirring plates 404 controlled at 60°. When the stirring plate 404 rotates with the rotating rod 401, after the transmission rod 503 contacts the stirring plate 404, due to the elastic effect, it straddles the stirring plate 404, so that the stirring plate 404 and the transmission rod 503 generate vibrations. Through the vibration transmission, the oil guide pipe 301 also generates slight vibrations. At the same time, the micro hydraulic cylinder 303 is reciprocally started for a set time to make the scraping ring 302 reciprocate. The reciprocating operation of the scraping ring 302 will push and stir the raw materials near the oil guide pipe 301. And when the liquid level is lower than the oil guide pipe 301, the reciprocating movement of the scraping ring 302 and the slight vibration of the oil guide pipe 301 cooperate to clean and drop the raw materials adhering to the surface of the oil guide pipe 301, ensuring that the raw materials can be fully utilized.

[0052] The main functions achieved by the present invention are as follows: By setting components such as the stirring plate 404, the transmission rod 503, the pressure sensor and the scraping plate 502, the viscosity of the raw materials in the storage tank 1 can be indirectly detected with the assistance of the pressure sensor, and multiple pressure sensors cooperate to detect the liquid level of the raw materials in the storage tank 1. When the liquid level drops below the stirring plate 404, the detected value of the pressure sensor on the stirring plate 404 drops to 0. At this time, by controlling the tilt angle of the stirring plate 404, the scraping plate 502 can clean the inner wall of the storage tank 1, and the stirring plate 404 will also be knocked by the transmission rod 503 to form vibrations to clean the stirring plate 404. When all the pressure sensors drop to 0, by controlling the micro hydraulic cylinder 303, the scraping ring 302 reciprocates to ensure that the raw materials at the bottom of the storage tank 1 remain flowing and can clean the oil guide pipe 301, so that the raw materials in the storage tank 1 are fully utilized.

[0053] The present invention also provides an application of the filling and storage equipment in the production of polyurethane foam sealant, and uses the filling and storage equipment to fill and process the raw materials for producing polyurethane foam sealant.

[0054] For the filling and storage equipment of the present invention, its installation method, connection method or setting method are all common mechanical methods, and any implementation that can achieve its beneficial effects can be carried out.

[0055] All the technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the technical field to which the present invention belongs. The terms used in the specification of the present invention herein are only for the purpose of describing specific embodiments and are not intended to limit the present invention. The term "and / or" used herein includes any and all combinations of one or more of the related listed items.

[0056] The above are only the preferred embodiments of the present invention. It should be noted that for those of ordinary skill in the art, without departing from the technical principle of the present invention, several improvements and modifications can be made, and these improvements and modifications should also be regarded as the protection scope of the present invention.

Claims

1. A filling and storage device, comprising a storage tank and a filling assembly, characterized in that, A heating component is arranged in the storage tank, a stirring component is arranged on the top of the heating component in the storage tank, and a scraping component is also arranged on the inner wall of the storage tank; The heating component includes an oil guide pipe, a scraper ring is slidably arranged on the oil guide pipe, and micro hydraulic cylinders are arranged on both sides of the oil guide pipe on the inner wall of the storage tank, and the output end of the micro hydraulic cylinder is connected to the scraper ring; The stirring assembly includes a rotating rod, a cavity is arranged in the middle of the rotating rod, a connecting shaft is rotatably arranged on the rotating rod, a stirring plate is arranged on the connecting shaft, a driving assembly is arranged in the cavity, both sides of the stirring plate are arc-shaped, and pressure sensors are arranged on the arc surfaces on both sides of the stirring plate; The scraper assembly includes a limit ring, an annular groove is provided on the inner wall of the storage tank, the limit ring rotates in the annular groove, a scraper plate is provided on the limit ring, a transmission rod is provided on the inner side of the limit ring, the transmission rod is elastic, the scraper plate is attached to the inner wall of the storage tank, and the stirring plate contacts the transmission rod when the stirring plate deflects to an angle of 60° with the horizontal plane as the rotating rod rotates; The driving assembly includes a driving motor, which is arranged in the cavity. A first bevel gear is arranged at the output end of the driving motor, and a second bevel gear is arranged on one side of the connecting shaft located in the cavity. The first bevel gear and the second bevel gear are meshed for transmission. A rotating motor is arranged on the top of the storage tank, the output end of the rotating motor is connected to the rotating rod, and a feeding pipe is arranged on the upper side of the storage tank; When the stirring plate starts to stir the liquid raw material, the detection value of the pressure sensor will increase and exceed the threshold value. At this time, the equipment controls the drive motor to start, so that the angle between the stirring plate and the horizontal plane increases but does not exceed 60°. When the angle between the stirring plate and the horizontal plane increases, the stirring effect of the stirring plate on the liquid raw material in the storage tank is enhanced as the rotating rod rotates, so that the viscous liquid raw material can be better mixed and heated; As the filling proceeds, the raw material liquid level in the storage tank gradually decreases. When the liquid level drops below the stirring plate, the detection value of the pressure sensor on the side of the stirring plate will drop to 0. At this time, the equipment controls the drive motor to start, so that the inclination angle of the stirring plate increases to more than 60° but not more than 90°. The stirring plate will contact the transmission rod to rotate the limit ring. The rotation of the limit ring will move the scraper plate. The movement of the scraper plate will scrape the raw materials on the inner wall of the storage tank, and the scraped raw materials will fall to the bottom of the storage tank.

2. The filling and storage device according to claim 1, wherein, The filling assembly comprises a first hydraulic cylinder, a support rod is arranged on the top of the first hydraulic cylinder, a mounting plate is arranged on the upper end of the support rod, and a sleeve is arranged on the top of the mounting plate.

3. The filling and storage device according to claim 2, characterized in that, A three-way valve is arranged at the lower end of the storage tank, the three-way valve is communicated with the sleeve, a hose is arranged at the side end of the three-way valve, and an adjusting component is arranged at the side end of the three-way valve.

4. The filling and storage device according to claim 3, characterized in that, A connecting rod is provided at the output end of the first hydraulic cylinder, a piston plate is provided in the sleeve, the connecting rod passes through the mounting plate and is inserted into the sleeve, the upper end of the connecting rod is connected to the piston plate, a filling head is provided at the end of the hose, a second hydraulic cylinder is provided at the upper end of the filling head, and the output end of the second hydraulic cylinder is connected to the filling head.

5. The filling and storage device according to claim 3, wherein, The regulating assembly comprises a control rod, which is inserted into the three-way valve. The three-way valve is provided with a mounting plate on one side of the control rod, a transmission plate is provided on the control rod, a third hydraulic cylinder is rotatably provided at the lower end of the mounting plate, and an output end of the third hydraulic cylinder is rotatably connected to the transmission plate.

6. Application of a filling and storage device in the production of polyurethane foam sealant, characterized in that, Use the filling and storage device according to any one of claims 1-5 to fill and process the raw materials for producing polyurethane foam sealant.

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