Production process and device of polyurethane composite board with high percentage of closed area

Abstract

The invention relates to the technical field of polyurethane composite board production devices, and provides a production process and device of a polyurethane composite board with a high percentage of closed area, the production process comprises a movable sleeve, a plurality of groups of stirring and mixing assemblies, a transmission mechanism and a pumping mechanism, the pumping mechanism can pump raw materials in a raw material barrel into a material conveying pipe, and the material conveying pipe is used for conveying the raw materials in the raw material barrel; in the process that the raw materials in the raw material cylinder are pumped by the pumping mechanism, the transmission mechanism can be driven, so that the movable sleeve can be lifted and rotated through the transmission mechanism, and the movable sleeve can be lifted and rotated through the transmission mechanism. And the movable sleeve can drive the porous stirring plate to lift and revolve, so that the stirring uniformity of the raw materials for producing the polyurethane composite plate in the raw material cylinder is remarkably improved. And therefore, the pump can be driven by only one motor, pumping and stirring mixing work of raw materials can be achieved at the same time, the use cost is greatly reduced, and the high use value is achieved.

Description

Technical Field

[0001] The invention relates to the technical field of polyurethane composite board production equipment, and in particular to a production process and equipment of a polyurethane composite board with a high closed-cell rate. Background Art

[0002] Polyurethane composite board is a material widely used in metallurgy, petroleum, automobile, mineral processing, water conservancy and other fields. It is made of organic diisocyanate or polyisocyanate and dihydroxy or polyhydroxy compound. It has the advantages of strong elastic strength and excellent wear resistance. In the production process of polyurethane composite board, by modifying polyether polyol and mixing and foaming it through high-pressure foaming machine, the closed-cell rate of polyurethane foam can be effectively improved from 92-95% to 95%-98%, and the thermal conductivity of polyurethane is greatly reduced from 0.024w / mk to 0.018w / mk. In addition, by selecting a suitable high-pressure foaming machine (smaller high-pressure aperture) and a suitable material temperature, by reducing the aperture of the nozzle and increasing the pressure of the storage tank, the raw material mixing collision pressure can be effectively enhanced, the mixing effect and uniformity can be improved, and the polyurethane foam pores can be more uniform, so that the closed-cell rate is increased.

[0003] At present, in the production process of polyurethane composite board, the raw materials need to be mixed first, and then the evenly mixed raw materials are pumped to the surface material for foaming. However, in this process, if the mixing and stirring of the raw materials is stopped during the raw material pumping, the raw materials in the barrel are prone to precipitation, thereby affecting the high closed-cell rate of the polyurethane composite board. In order to ensure that the polyurethane composite board has a good high closed-cell rate, the raw materials need to be mixed and stirred continuously during the pumping process. At this time, the pumping work is also carried out at the same time, and two driving devices need to be used at the same time, which greatly increases the cost of use of the enterprise.

[0004] In view of this, the present invention proposes a production process and a device for a polyurethane composite board with a high closed-cell ratio. Summary of the invention

[0005] The present invention proposes a production process and device for a polyurethane composite board with a high closed-cell rate, which solves the problem in the related art that in order to ensure that the polyurethane composite board has a good high closed-cell rate, the raw materials need to be continuously mixed and stirred during the pumping process, and two driving devices need to be used simultaneously, which greatly increases the company's use cost.

[0006] The technical scheme of the present invention is as follows: A production device for polyurethane composite panels with a high closed-cell rate, comprising: a raw material barrel for storing raw materials for the production of polyurethane composite panels, a support ring fixedly sleeved on the outer wall of the raw material barrel, and a plurality of column legs fixedly connected to the outer wall of the support ring for supporting the raw material barrel, wherein a movable sleeve is arranged inside the raw material barrel, the movable sleeve passes through the top of the raw material barrel and is slidably connected thereto, a plurality of groups of stirring and mixing components are equidistantly arranged on the outer wall of the movable sleeve located on the inner side of the raw material barrel, each group of the stirring and mixing components comprises a plurality of porous stirring plates fixedly connected to the outer wall of the movable sleeve in an annular array, the porous stirring plates are arranged obliquely, and a scraping blade that fits the inner wall of the raw material barrel is arranged at one end of the porous stirring plate away from the movable sleeve; A transmission mechanism is arranged on the top of the raw material barrel, and a material conveying pipe is arranged below the raw material barrel. A right-angle frame is fixedly connected to the side wall of one of the column legs, and a pumping mechanism is arranged on the right-angle frame. The raw material inside the raw material barrel can be pumped into the material conveying pipe through the pumping mechanism. During the process of the pumping mechanism pumping the raw material inside the raw material barrel, the transmission mechanism can be driven, so that the movable sleeve can be lifted, lowered and rotated through the transmission mechanism.

[0007] Preferably, the transmission mechanism includes two vertical plates fixed to the top end of the raw material barrel, guide grooves are opened on the opposite inner walls of the two vertical plates, and a lifting plate is slidably sleeved between the two guide grooves, and three fixed seats are fixed to the side walls of one of the vertical plates, the movable sleeve rotates and passes through the interior of the lifting plate, the movable sleeve slides and passes through the interior of the fixed seat located at the lower side, and a rotating rod is rotatably connected to the interior of the fixed seat located in the middle position, and the rotating rod extends to the interior of the movable sleeve and is slidably connected thereto.

[0008] Preferably, the transmission mechanism also includes a transmission component, which includes a worm rotatably connected between two fixed seats, the bottom of the worm is fixedly connected to the top of the rotating rod, one side of the worm is meshingly connected with a worm wheel, and mounting plates are fixedly connected to the vertical plates on both sides of the worm wheel. The worm wheel is rotatably connected between the two mounting plates through an axis, and the outer walls of the two mounting plates are rotatably provided with a turntable, which is coaxially fixed to the worm wheel.

[0009] Preferably, the transmission component further comprises two connecting rods respectively hinged on the outer walls of the two turntables, the bottom ends of the two connecting rods are commonly hinged with a lifting frame, and the bottom end of the lifting frame is fixedly connected with a lifting shaft.

[0010] Preferably, the bottom end of the lifting shaft is fixedly connected to the top end of the lifting plate, a fixing plate is fixedly connected to the side wall of the vertical plate, one end of the fixing plate is fixedly connected to a limiting sleeve, and the lifting shaft passes through the inside of the limiting sleeve and is slidably connected thereto.

[0011] Preferably, the outer wall of the rotating rod is fixedly connected to a limiting rod, and one side of the inner cavity of the movable sleeve is provided with a limiting groove for the limiting rod to slide.

[0012] Preferably, the pumping mechanism includes a motor and a housing fixedly connected to the side wall of the right-angle frame by bolts, the rotating rod rotates through the bottom of the raw material barrel and extends to the inside of the housing, the bottom end of the rotating rod is fixedly connected to the end of the output shaft on the motor, and the rotating rod is rotated by the motor; One end of the shell is fixedly connected with a horizontal pipe, and the horizontal pipe is fixedly connected with a vertical cylinder. The upper and lower ends of the vertical cylinder are fixedly connected with flanges, and the upper and lower sides of the vertical cylinder are internally provided with one-way valves; A rotating disc is rotatably arranged inside the shell, the rotating rod is eccentrically fixed to the rotating disc, and a linkage component is arranged between the shell and the transverse tube.

[0013] Preferably, the linkage component includes a piston slidably mounted inside the cross tube, a push-pull rod is fixedly connected to the outer wall of the piston, a push plate that contacts the side wall of the rotating disc is fixedly connected to the end of the push-pull rod away from the piston, a fixed cover is fixedly connected to the inner cavity of the outer shell, the push-pull rod slides through the inner side of the fixed cover, a return spring is fixedly connected between the push plate and the fixed cover, and the return spring is mounted on the outside of the push-pull rod.

[0014] Preferably, the one-way valve includes a fixing ring fixedly connected to the inner wall of the vertical cylinder, a cross brace fixedly connected to the inner wall of the vertical cylinder is arranged on the lower side of the fixing ring, a guide shaft slides through the center of the cross brace, a sealing ball is fixedly connected to the top end of the guide shaft, and a support spring is fixedly connected between the sealing ball and the cross brace.

[0015] A production process of a polyurethane composite board with a high closed-cell rate, using the above-mentioned production device of a polyurethane composite board with a high closed-cell rate, comprises the following steps: S1. Inject the mixed raw materials for the production of polyurethane composite panels into the raw material barrel, then turn on the power to start the motor, the motor drives the rotating rod to rotate through its output shaft, under the action of the limit rod and the limit groove, the rotating rod can drive the movable sleeve to rotate when rotating, and the movable sleeve drives the porous stirring plate to rotate, and the raw materials for the production of polyurethane composite panels in the raw material barrel are continuously stirred through the porous stirring plate; S2. During the rotation of the rotating rod, the worm can be driven to rotate, the worm drives the worm wheel to rotate, and the worm wheel drives the two turntables to rotate. During the rotation of the turntable, the lifting frame can be lifted and lowered by the connecting rod, and the lifting frame drives the lifting plate to lift and lower through the lifting shaft. The lifting plate drives the movable sleeve to slide back and forth on the outer wall of the rotating rod, so that the porous stirring plate can also be reciprocated up and down inside the raw material barrel during the revolution of the movable sleeve, so as to further mix the raw materials for the production of the polyurethane composite board stored in the raw material barrel, thereby improving the mixing uniformity of the raw materials; S3. When the porous stirring plate is rotating and lifting inside the raw material barrel, the scraper blade at the end of the porous stirring plate can rub and clean the side wall of the raw material barrel to prevent the raw materials from sticking and piling up on the side wall of the raw material barrel, which not only facilitates the cleaning of the raw material barrel, but also improves the utilization rate of the raw materials; S4. When the rotating rod rotates, it can drive the rotating disc to rotate eccentrically, and the rotating disc pushes the push disc intermittently. In the process of the rotating disc pushing the push disc, the reset spring is compressed, and the push-pull rod drives the piston to move right, pressuring the raw material inside the horizontal tube, so that the two blocking balls move away from each other. At this time, the blocking ball on the upper side blocks the fixing ring on the upper side, and the blocking ball on the lower side drives the guide shaft to move downward, compressing the support spring, so that the fixing ring on the lower side is in an open state, so that the raw material inside the horizontal tube can be transported to the feed pipe through the vertical cylinder; S5. When the rotating disc removes the push on the push plate, the reset spring stretches and resets, and the push plate drives the piston to move left through the push-pull rod. At this time, the upper fixing ring is in an open state, and the lower fixing ring is blocked by the blocking ball, so that the raw materials inside the raw material barrel can be pumped into the horizontal tube through the vertical barrel for temporary storage.

[0016] The working principle and beneficial effects of the present invention are: In the present invention, a movable sleeve is arranged inside the raw material barrel, the movable sleeve passes through the top of the raw material barrel and is slidably connected thereto, a plurality of stirring and mixing components are equidistantly arranged on the outer wall of the movable sleeve located inside the raw material barrel, each stirring and mixing component comprises a plurality of porous stirring plates fixedly connected to the outer wall of the movable sleeve in an annular array, the porous stirring plates are arranged obliquely, and a scraping blade that fits the inner wall of the raw material barrel is arranged at one end of the porous stirring plates away from the movable sleeve, a transmission mechanism is arranged on the top of the raw material barrel, when the rotating rod on the transmission mechanism rotates, the movable sleeve can be driven to rotate, and the transmission component and the lifting plate can drive the movable sleeve to slide back and forth up and down, so that the porous stirring plates can be reciprocated up and down inside the raw material barrel during the process of the revolution of the movable sleeve, so that the raw materials for the production of the polyurethane composite board stored inside the raw material barrel can be fully mixed, and the mixing uniformity of the raw materials can be significantly improved; In the present invention, a pumping mechanism is arranged on the right-angle frame, and the raw materials inside the raw material barrel can be pumped into the feed pipe through the pumping mechanism. In the process of the pumping mechanism pumping the raw materials inside the raw material barrel, the transmission mechanism can be driven, so that the movable sleeve can be lifted and rotated through the transmission mechanism, and then only one motor can be used to drive and realize the pumping and stirring and mixing of the raw materials at the same time, which greatly reduces the use cost and has high use value. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0018] Figure 1 A schematic diagram of the three-dimensional structure of a production device for a polyurethane composite board with a high closed-cell rate proposed by the present invention; Figure 2 A partial cross-sectional structural schematic diagram of a production device for a polyurethane composite board with a high closed-cell ratio proposed by the present invention; Figure 3 This is a schematic diagram of the transmission mechanism structure proposed by the present invention; Figure 4 This is a schematic diagram of the structure of the transmission component proposed by the present invention; Figure 5 This is a schematic diagram of a partial cross-sectional structure of the lifting plate proposed by the present invention; Figure 6 for Figure 2 The enlarged structural diagram at A in the middle; Figure 7 for Figure 6 The enlarged structural diagram at B in the middle; In the figure: 1. Transmission mechanism; 11. Vertical plate; 12. Fixed seat; 13. Fixed plate; 14. Lifting plate; 15. Guide groove; 16. Rotating rod; 17. Limiting sleeve; 18. Limiting rod; 19. Transmission parts; 191. Worm gear; 192. Worm; 193. Mounting plate; 194. Rotating plate; 195. Connecting rod; 196. Lifting frame; 197. Lifting shaft; 2. Raw material barrel; 3. Support ring; 4. Pumping mechanism; 41. Motor; 42. Housing; 43. Rotating disc; 44. Vertical cylinder; 45. Horizontal tube; 46. One-way valve; 461. Fixed ring; 462. Blocking ball; 463. Guide shaft; 464. Cross brace; 465. Support spring; 47. Linkage component; 471. Piston; 472. Push-pull rod; 473. Fixed cover; 474. Return spring; 475. Push disc; 5. Feed pipe; 6. Column legs; 7. Right angle bracket; 8. movable sleeve; 81. limiting groove; 9. Perforated stirring plate; 91. Scraper blade. DETAILED DESCRIPTION

[0019] The following will be combined with the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. 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 creative work are within the scope of protection of the present invention. Example 1

[0020] See also Figure 1 and Figure 2 A production process and device for a polyurethane composite board with a high closed-cell rate, comprising: a raw material barrel 2 for storing raw materials for the production of the polyurethane composite board, a support ring 3 fixedly sleeved on the outer wall of the raw material barrel 2, and a plurality of column legs 6 fixedly connected to the outer wall of the support ring 3 for supporting the raw material barrel 2, a movable sleeve 8 is arranged inside the raw material barrel 2, the movable sleeve 8 passes through the top of the raw material barrel 2 and is slidably connected thereto, a plurality of groups of stirring and mixing components are equidistantly arranged on the outer wall of the movable sleeve 8 located on the inner side of the raw material barrel 2, each group of stirring and mixing components comprises a plurality of porous stirring plates 9 fixedly connected to the outer wall of the movable sleeve 8 in an annular array, the porous stirring plates 9 are inclined, and a scraping blade 91 that fits the inner wall of the raw material barrel 2 is arranged at one end of the porous stirring plates 9 away from the movable sleeve 8.

[0021] Furthermore, a transmission mechanism 1 is provided on the top of the raw material barrel 2, a material conveying pipe 5 is provided below the raw material barrel 2, a right-angle frame 7 is fixedly connected to the side wall of one of the column legs 6, and a pumping mechanism 4 is provided on the right-angle frame 7.

[0022] In this embodiment, the raw materials in the raw material barrel 2 can be pumped into the feed pipe 5 by the pumping mechanism 4. In the process of pumping the raw materials in the raw material barrel 2 by the pumping mechanism 4, the transmission mechanism 1 can be driven, so that the movable sleeve 8 can be lifted and rotated by the transmission mechanism 1. The movable sleeve 8 can drive the porous stirring plate 9 to lift and revolve, significantly improving the uniformity of stirring the raw materials for the production of the polyurethane composite board in the raw material barrel 2. Example 2

[0023] See also Figure 1 , Figure 2 , Figure 3 , Figure 4 as well as Figure 5, a production process and device of a polyurethane composite board with a high closed-cell rate, including all the contents of Example 1. In addition, a transmission mechanism 1 includes two vertical plates 11 fixedly connected to the top of a raw material barrel 2, and guide grooves 15 are provided on the opposite inner walls of the two vertical plates 11. A lifting plate 14 is slidably sleeved between the two guide grooves 15. Three fixed seats 12 are fixedly connected to the side wall of one of the vertical plates 11. The movable sleeve 8 rotates and passes through the inside of the lifting plate 14. The movable sleeve 8 slides and passes through the inside of the fixed seat 12 located at the lowest side. A rotating rod 16 is rotatably connected to the inside of the fixed seat 12 located in the middle position. The rotating rod 16 extends to the inside of the movable sleeve 8 and is slidably connected to it.

[0024] Furthermore, the transmission mechanism 1 also includes a transmission component 19, which includes a worm 192 rotatably connected between two fixed seats 12, the bottom of the worm 192 is fixedly connected to the top of the rotating rod 16, one side of the worm 192 is meshingly connected with a worm wheel 191, and mounting plates 193 are fixedly connected to the vertical plates 11 on both sides of the worm wheel 191, and the worm wheel 191 is rotatably connected between the two mounting plates 193 through an axis, and the outer walls of the two mounting plates 193 are rotatably provided with a turntable 194, and the turntable 194 is coaxially fixed with the worm wheel 191.

[0025] Furthermore, the transmission component 19 also includes two connecting rods 195 respectively hinged on the outer walls of the two rotating disks 194, and the bottom ends of the two connecting rods 195 are hinged together with a lifting frame 196, and the bottom end of the lifting frame 196 is fixedly connected to a lifting shaft 197. The bottom end of the lifting shaft 197 is fixedly connected to the top of the lifting plate 14, and the side wall of the vertical plate 11 is fixedly connected to a fixed plate 13, one end of the fixed plate 13 is fixedly connected to a limiting sleeve 17, and the lifting shaft 197 passes through the inside of the limiting sleeve 17 and is slidably connected thereto. The outer wall of the rotating rod 16 is fixedly connected to a limiting rod 18, and a limiting groove 81 for the limiting rod 18 to slide is provided on one side of the inner cavity of the movable sleeve 8.

[0026] In this embodiment, when the rotating rod 16 rotates, under the action of the limiting rod 18 and the limiting groove 81, the rotating rod 16 can drive the movable sleeve 8 to rotate, and the movable sleeve 8 drives the porous stirring plate 9 to rotate, and the raw materials for the production of the polyurethane composite board inside the raw material barrel 2 are continuously stirred through the porous stirring plate 9. During the rotation of the rotating rod 16, the worm 192 can be driven to rotate, the worm 192 can drive the worm wheel 191 to rotate, and the worm wheel 191 can drive the two turntables 194 to rotate. During the rotation of the turntable 194, the lifting frame 196 can be lifted and lowered through the connecting rod 195, and the lifting frame 196 drives the lifting plate 14 to lift and lower through the lifting shaft 197. The lifting plate 14 drives the movable sleeve 8 to slide back and forth up and down on the outer wall of the rotating rod 16, so that the porous stirring plate 9 can also be swung back and forth up and down on the inner side of the raw material barrel 2 during the revolution of the movable sleeve 8, so as to further mix the raw materials for the production of the polyurethane composite board stored in the raw material barrel 2, thereby improving the mixing uniformity of the raw materials. Example

[0027] See also Figure 1 , Figure 2 , Figure 6 as well as Figure 7 , a production process and device of a polyurethane composite board with a high closed-cell rate, including all the contents of Example 2, further, the pumping mechanism 4 includes a motor 41 and a housing 42 fixedly connected to the side wall of the right-angle frame 7 by bolts, the rotating rod 16 rotates through the bottom of the raw material barrel 2 and extends to the inside of the housing 42, the bottom end of the rotating rod 16 is fixedly connected to the end of the output shaft on the motor 41, and the rotating rod 16 is rotated by the motor 41. One end of the housing 42 is fixedly connected to a horizontal tube 45, and the horizontal tube 45 is fixedly connected to a vertical tube 44, the upper and lower ends of the vertical tube 44 are fixedly connected to flanges, and the upper and lower sides of the vertical tube 44 are provided with a one-way valve 46. A rotating disc 43 is rotatably provided inside the housing 42, the rotating rod 16 and the rotating disc 43 are eccentrically fixed, and a linkage component 47 is provided between the housing 42 and the horizontal tube 45.

[0028] Furthermore, the linkage component 47 includes a piston 471 slidably mounted inside the cross tube 45, a push-pull rod 472 is fixedly connected to the outer wall of the piston 471, and a push plate 475 that contacts the side wall of the rotating disk 43 is fixedly connected to the end of the push-pull rod 472 away from the piston 471, a fixed cover 473 is fixedly connected to the inner cavity of the outer shell 42, the push-pull rod 472 slides through the inner side of the fixed cover 473, a return spring 474 is fixedly connected between the push plate 475 and the fixed cover 473, and the return spring 474 is mounted on the outer side of the push-pull rod 472.

[0029] Furthermore, the one-way valve 46 includes a fixed ring 461 fixedly connected to the inner wall of the vertical cylinder 44, a cross brace 464 fixedly connected to the inner wall of the vertical cylinder 44 is arranged on the lower side of the fixed ring 461, a guide shaft 463 slides through the center of the cross brace 464, a sealing ball 462 is fixedly connected to the top of the guide shaft 463, and a support spring 465 is fixedly connected between the sealing ball 462 and the cross brace 464.

[0030] In this embodiment, the power is turned on to start the motor 41, and the motor 41 drives the rotating rod 16 to rotate through its output shaft. While the rotating rod 16 rotates, it can drive the rotating disc 43 to rotate eccentrically, and the rotating disc 43 intermittently pushes the push plate 475. In the process of the rotating disc 43 pushing the push plate 475, the reset spring 474 is compressed and the push-pull rod 472 drives the piston 471 to move right, exerting pressure on the raw material inside the cross tube 45, so that the two blocking balls 462 move away from each other. At this time, the blocking ball 462 on the upper side blocks the fixing ring 461 on the upper side, and the blocking ball 462 on the lower side drives the guide shaft 463 to move downward, compressing the support spring 465, so that the fixing ring 461 on the lower side is in an open state, so that the raw material inside the cross tube 45 can be transported to the feed pipe 5 through the vertical cylinder 44. When the rotating disc 43 removes its push on the push plate 475, the reset spring 474 stretches and resets, and the push plate 475 drives the piston 471 to move left through the push-pull rod 472. At this time, the upper fixing ring 461 is in an open state, and the lower fixing ring 461 is blocked by the blocking ball 462, so that the raw material inside the raw material barrel 2 can be pumped into the horizontal tube 45 through the vertical barrel 44 for temporary storage.

[0031] Working principle and usage process: When working, the mixed raw materials for the production of polyurethane composite boards are injected into the raw material barrel 2, and then the power is turned on to start the motor 41. The motor 41 drives the rotating rod 16 to rotate through its output shaft. Under the action of the limiting rod 18 and the limiting groove 81, the rotating rod 16 can drive the movable sleeve 8 to rotate when it rotates, and the movable sleeve 8 drives the porous stirring plate 9 to rotate, and the raw materials for the production of polyurethane composite boards inside the raw material barrel 2 are continuously stirred through the porous stirring plate 9. During the rotation of the rotating rod 16, the worm 192 can be driven to rotate, the worm 192 can drive the worm wheel 191 to rotate, and the worm wheel 191 can drive the two turntables 194 to rotate. During the rotation of the turntable 194, the lifting frame 196 can be lifted and lowered through the connecting rod 195, and the lifting frame 196 drives the lifting plate 14 to lift and lower through the lifting shaft 197. The lifting plate 14 drives the movable sleeve 8 to slide back and forth up and down on the outer wall of the rotating rod 16, so that the porous stirring plate 9 can also be swung back and forth up and down on the inner side of the raw material barrel 2 during the revolution of the movable sleeve 8, so as to further mix the raw materials for the production of the polyurethane composite board stored in the raw material barrel 2, thereby improving the mixing uniformity of the raw materials.

[0032] When the porous stirring plate 9 is rotating and rising inside the raw material barrel 2, the scraper blade 91 at the end of the porous stirring plate 9 can rub and clean the side wall of the raw material barrel 2 to prevent the raw materials from sticking and piling up on the side wall of the raw material barrel 2, which not only facilitates the cleaning of the raw material barrel 2, but also improves the utilization rate of the raw materials.

[0033] When the rotating rod 16 rotates, it can drive the rotating disc 43 to rotate eccentrically, and the rotating disc 43 intermittently pushes the push plate 475. In the process of the rotating disc 43 pushing the push plate 475, the reset spring 474 is compressed and the push-pull rod 472 drives the piston 471 to move right, thereby applying pressure to the raw material inside the transverse tube 45, so that the two blocking balls 462 move away from each other. At this time, the blocking ball 462 on the upper side blocks the fixing ring 461 on the upper side, and the blocking ball 462 on the lower side drives the guide shaft 463 to move downward, compressing the support spring 465, so that the fixing ring 461 on the lower side is in an open state, so that the raw material inside the transverse tube 45 can be transported to the feed pipe 5 through the vertical cylinder 44. When the rotating disc 43 removes its push on the push plate 475, the reset spring 474 stretches and resets, and the push plate 475 drives the piston 471 to move left through the push-pull rod 472. At this time, the upper fixing ring 461 is in an open state, and the lower fixing ring 461 is blocked by the blocking ball 462, so that the raw material inside the raw material barrel 2 can be pumped into the horizontal tube 45 through the vertical barrel 44 for temporary storage.

[0034] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A production device for a polyurethane composite board with a high closed-cell rate, comprising: A raw material barrel (2) for storing raw materials for producing polyurethane composite panels, a support ring (3) fixedly sleeved on the outer wall of the raw material barrel (2), and a plurality of column legs (6) fixedly connected to the outer wall of the support ring (3) for supporting the raw material barrel (2), characterized in that: A movable sleeve (8) is arranged inside the raw material barrel (2), the movable sleeve (8) passes through the top end of the raw material barrel (2) and is slidably connected thereto, a plurality of groups of stirring and mixing components are equidistantly arranged on the outer wall of the movable sleeve (8) located inside the raw material barrel (2), each group of the stirring and mixing components comprises a plurality of porous stirring plates (9) fixedly connected to the outer wall of the movable sleeve (8) in an annular array, the porous stirring plates (9) being arranged in an inclined manner, and a scraping blade (91) which is in contact with the inner wall of the raw material barrel (2) is arranged at one end of the porous stirring plate (9) away from the movable sleeve (8); A transmission mechanism (1) is arranged at the top of the raw material barrel (2), and a material delivery pipe (5) is arranged below the raw material barrel (2). A right-angle frame (7) is fixedly connected to the side wall of one of the column legs (6), and a pumping mechanism (4) is arranged on the right-angle frame (7). The raw material inside the raw material barrel (2) can be pumped into the material delivery pipe (5) by the pumping mechanism (4). When the pumping mechanism (4) pumps the raw material inside the raw material barrel (2), the transmission mechanism (1) can be driven, so that the movable sleeve (8) can be lifted and rotated by the transmission mechanism (1).

2. The production device of a polyurethane composite board with a high closed-cell rate according to claim 1, characterized in that: The transmission mechanism (1) comprises two vertical plates (11) fixedly connected to the top of the raw material barrel (2), the two vertical plates (11) are provided with guide grooves (15) on the opposite inner walls, and a lifting plate (14) is slidably sleeved between the two guide grooves (15), three fixed seats (12) are fixedly connected to the side wall of one of the vertical plates (11), the movable sleeve (8) is rotatably passed through the interior of the lifting plate (14), the movable sleeve (8) is slidably passed through the interior of the fixed seat (12) located at the bottom, and a rotating rod (16) is rotatably connected to the interior of the fixed seat (12) located at the middle position, and the rotating rod (16) extends into the interior of the movable sleeve (8) and is slidably connected thereto.

3. The production device of a polyurethane composite board with a high closed-cell rate according to claim 2, characterized in that: The transmission mechanism (1) further comprises a transmission component (19), the transmission component (19) comprising a worm (192) rotatably connected between two fixed seats (12), the bottom of the worm (192) being fixedly connected to the top of the rotating rod (16), one side of the worm (192) being meshingly connected to a worm wheel (191), mounting plates (193) being fixedly connected to the vertical plates (11) located on both sides of the worm wheel (191), the worm wheel (191) being rotatably connected between the two mounting plates (193) via an axis, and outer walls of the two mounting plates (193) being rotatably provided with a rotating disk (194), the rotating disk (194) being coaxially fixed to the worm wheel (191).

4. The production device of a polyurethane composite board with a high closed-cell rate according to claim 3, characterized in that: The transmission component (19) further comprises two connecting rods (195) respectively hinged on the outer walls of the two rotating disks (194); the bottom ends of the two connecting rods (195) are hingedly connected to a lifting frame (196); the bottom end of the lifting frame (196) is fixedly connected to a lifting shaft (197).

5. The production device of a polyurethane composite board with a high closed-cell rate according to claim 4, characterized in that: The bottom end of the lifting shaft (197) is fixedly connected to the top end of the lifting plate (14); a fixing plate (13) is fixedly connected to the side wall of the vertical plate (11); one end of the fixing plate (13) is fixedly connected to a limiting sleeve (17); the lifting shaft (197) passes through the inside of the limiting sleeve (17) and is slidably connected thereto.

6. The production device of a polyurethane composite board with a high closed-cell rate according to claim 5, characterized in that: The outer wall of the rotating rod (16) is fixedly connected to a limiting rod (18), and one side of the inner cavity of the movable sleeve (8) is provided with a limiting groove (81) for the limiting rod (18) to slide.

7. The production device of a polyurethane composite board with a high closed-cell rate according to claim 6, characterized in that: The pumping mechanism (4) comprises a motor (41) and a housing (42) fixed to the side wall of the right-angle frame (7) by bolts; the rotating rod (16) rotates through the bottom of the raw material barrel (2) and extends to the inside of the housing (42); the bottom end of the rotating rod (16) is fixed to the end of the output shaft on the motor (41), and the rotating rod (16) is rotated by the motor (41); One end of the housing (42) is fixedly connected to a horizontal pipe (45), and the horizontal pipe (45) is fixedly connected to a vertical cylinder (44). The upper and lower ends of the vertical cylinder (44) are fixedly connected to flanges, and the upper and lower sides of the vertical cylinder (44) are internally provided with one-way valves (46); A rotating disk (43) is rotatably disposed inside the outer shell (42), the rotating rod (16) and the rotating disk (43) are eccentrically fixed, and a linkage component (47) is disposed between the outer shell (42) and the transverse tube (45).

8. The production device of a polyurethane composite board with a high closed-cell rate according to claim 7, characterized in that: The linkage component (47) includes a piston (471) slidably mounted inside the transverse tube (45); a push-pull rod (472) is fixedly connected to the outer wall of the piston (471); an end of the push-pull rod (472) away from the piston (471) is fixedly connected to a push plate (475) that contacts the side wall of the rotating disc (43); a fixed cover (473) is fixedly connected to the inner cavity of the outer shell (42); the push-pull rod (472) slides through the inner side of the fixed cover (473); a return spring (474) is fixedly connected between the push plate (475) and the fixed cover (473); and the return spring (474) is mounted on the outer side of the push-pull rod (472).

9. The production device of a polyurethane composite board with a high closed-cell rate according to claim 8, characterized in that: The one-way valve (46) comprises a fixing ring (461) fixedly connected to the inner wall of the vertical tube (44); a cross brace (464) fixedly connected to the inner wall of the vertical tube (44) is arranged on the lower side of the fixing ring (461); a guide shaft (463) slides through the center of the cross brace (464); a sealing ball (462) is fixedly connected to the top of the guide shaft (463); and a support spring (465) is fixedly connected between the sealing ball (462) and the cross brace (464).

10. A production process of a polyurethane composite board with a high closed-cell ratio, using a production device of a polyurethane composite board with a high closed-cell ratio as claimed in any one of claims 1 to 9, characterized in that: The following steps are involved: S1, injecting the mixed raw materials for producing the polyurethane composite board into the raw material barrel (2), then turning on the power to start the motor (41), the motor (41) drives the rotating rod (16) to rotate through its output shaft, under the action of the limit rod (18) and the limit groove (81), the rotating rod (16) can drive the movable sleeve (8) to rotate when rotating, and the movable sleeve (8) drives the porous stirring plate (9) to rotate, and the raw materials for producing the polyurethane composite board in the raw material barrel (2) are continuously stirred by the porous stirring plate (9); S2. During the rotation of the rotating rod (16), the worm (192) can be driven to rotate, the worm (192) drives the worm wheel (191) to rotate, the worm wheel (191) drives the two rotating disks (194) to rotate, and during the rotation of the rotating disk (194), the lifting frame (196) can be lifted and lowered through the connecting rod (195), the lifting frame (196) drives the lifting plate (14) to lift and lower through the lifting shaft (197), and the lifting plate (14) drives the movable sleeve (8) to slide back and forth up and down on the outer wall of the rotating rod (16), so that the porous stirring plate (9) can also rock back and forth up and down inside the raw material barrel (2) while the movable sleeve (8) is revolving, so as to further mix the raw materials for the production of the polyurethane composite board stored inside the raw material barrel (2), thereby improving the mixing uniformity of the raw materials; S3. When the porous stirring plate (9) is rotating and lifting inside the raw material barrel (2), the scraping blade (91) at the end of the porous stirring plate (9) can rub and clean the side wall of the raw material barrel (2), thereby preventing the raw materials from sticking and piling up on the side wall of the raw material barrel (2), which not only facilitates the cleaning work of the raw material barrel (2) but also improves the utilization rate of the raw materials; S4. When the rotating rod (16) rotates, it can drive the rotating disc (43) to rotate eccentrically, and the rotating disc (43) intermittently pushes the push disc (475). When the rotating disc (43) pushes the push disc (475), the return spring (474) is compressed, and the push-pull rod (472) drives the piston (471) to move rightward, thereby applying pressure to the raw material inside the horizontal tube (45), so that the two blocking balls (462) move away from each other. At this time, the blocking ball (462) located on the upper side blocks the fixing ring (461) located on the upper side, and the blocking ball (462) located on the lower side drives the guide shaft (463) to move downward, compressing the support spring (465), so that the fixing ring (461) located on the lower side is in an open state, so that the raw material inside the horizontal tube (45) can be transported to the feed pipe (5) through the vertical cylinder (44); S5. When the rotating disc (43) removes the push on the push plate (475), the reset spring (474) stretches and resets, and the push plate (475) drives the piston (471) to move leftward through the push-pull rod (472). At this time, the upper fixed ring (461) is in an open state, and the lower fixed ring (461) is blocked by the blocking ball (462), so that the raw material inside the raw material tube (2) can be pumped into the horizontal tube (45) through the vertical tube (44) for temporary storage.

Images