Foam joint mixture self-cleaning reaction kettle

Abstract

The invention discloses a foam joint mixture self-cleaning reaction kettle, and relates to the technical field of reaction kettles.The reaction kettle comprises a kettle body, a rotating unit is arranged at the top of the kettle body, the rotating unit comprises a driving motor arranged at the top of the kettle body, and a driving rod is arranged on a rotating shaft of the driving motor; the bottom of the driving rod penetrates through the top of the kettle body and is provided with a hydraulic rod, the telescopic end of the hydraulic rod is provided with a rotating seat, a tension sensing piece is arranged between the telescopic end of the hydraulic rod and the rotating seat, and the rotating seat is provided with a defoaming unit and a stirring unit. The inclination angle of a stirring blade plate is controlled through an adjusting motor, the resistance encountered by the stirring blade plate in the rotating process in mixed liquid is reduced, a bubble removing rod in the bubble removing unit rotates on the top layer of the mixed liquid, and the separation speed of bubbles on the top layer of the mixed liquid is increased through the shearing effect of the bubble removing rod on the top layer of the mixed liquid in the rotating process.

Description

Technical Field

[0001] The present invention relates to the technical field of reaction kettles, and particularly to a self-cleaning reaction kettle for foam sealant. Background Art

[0002] Foam sealant is a one-component, moisture-curing, multi-purpose polyurethane foaming filling elastic sealing material. Foam sealant is a special polyurethane product that fills components such as polyurethane prepolymer, foaming agent, and catalyst in a pressure-resistant aerosol can. During construction, the aerosol colloid is sprayed onto the construction site through a supporting glue gun or a manual spray pipe, and the processes of forming, foaming, bonding, and sealing are completed in a short time.

[0003] Chinese Patent with application number CN202121166792.1 discloses a reaction kettle for producing foam sealant, including a support hanger. Inside the support hanger, there is a reaction kettle body. On the outer wall of the reaction kettle body, two rotating shaft support rods are fixedly installed. The reaction kettle body is rotationally sleeved with the support hanger through the two rotating shaft support rods. On the outside of the two rotating shaft support rods, support side plates are rotationally sleeved. However, during the production process, the viscosity of the raw material mixture becomes higher and higher, the rotational resistance of the stirring plate becomes larger and larger, it is difficult to ensure the mixing efficiency of the stirring plate for the mixture. At the same time, the bubbles generated during the stirring of the mixture will move upward, and the bubbles on the top layer of the mixture cannot escape in time, which will affect the reaction efficiency between the mixtures.

[0004] In addition, bubbles will also be generated inside the mixture during the reaction process. Due to the viscosity of the mixture, some bubbles are difficult to move up to the top layer and escape outward, resulting in an increasing number of bubbles in the mixture, and then causing too high a porosity in the subsequent polyurethane prepolymer, which affects the stability during subsequent use.

[0005] Therefore, a self-cleaning reaction kettle for foam sealant is proposed to solve the above problems. Summary of the Invention

[0006] The purpose of the present invention is to disclose a self-cleaning reaction kettle for foam sealant to solve the problems raised in the above background art.

[0007] To achieve the above purpose, the present invention is realized through the following technical solutions: A self-cleaning reaction kettle for foam sealant, including a kettle body. A temperature control mechanism is provided on the outside of the kettle body. A pipe system mechanism is provided on the top of the kettle body. A rotating unit is provided on the top of the kettle body. A cleaning mechanism is provided inside the kettle body; The rotating unit includes a driving motor provided at the top of the kettle body. A driving rod is provided on the rotating shaft of the driving motor. The bottom of the driving rod penetrates through the top of the kettle body and is provided with a hydraulic rod. A rotating seat is provided at the telescopic end of the hydraulic rod. A tension sensing member is provided between the telescopic end of the hydraulic rod and the rotating seat. The rotating seat is provided with a defoaming unit and a stirring unit. The defoaming unit includes a rotating part and a defoaming part. The stirring unit includes a lifting part and a stirring part.

[0008] Optionally, the rotating part includes an annular groove opened at the top of the rotating seat. An annular seat is rotatably connected inside the annular groove. A guiding groove is opened at the top of the annular groove. A toothed ring is provided on the top of the annular seat. A reserved groove is opened inside the guiding groove. A power motor is provided at the top of the reserved groove. A power gear is provided on the rotating shaft of the power motor. The power gear is meshed with the toothed ring. The defoaming part includes a mounting plate provided on the outer side of the annular seat. Defoaming rods are provided at the bottom of the mounting plate. A support ring is provided on the outer side of the mounting plate.

[0009] Optionally, the lifting part includes a guiding groove opened at the bottom of the rotating seat. A first hydraulic cylinder is provided at the top of the guiding groove. A limiting channel is provided outside the guiding groove. The stirring part includes an adjusting motor provided at the telescopic end of the first hydraulic cylinder. A fixing rod is provided on the rotating shaft of the adjusting motor. The end of the fixing rod away from the adjusting motor penetrates through the limiting channel and is provided with a stirring blade. Guide holes are opened on the stirring blade. There are two columns of the guide holes. The two columns of the guide holes are arranged staggeredly. The number of columns of the guide holes is equal to the number of mounting plates. The defoaming rods on adjacent two mounting plates are arranged staggeredly and correspond to the positions of the guide holes one by one.

[0010] Optionally, a baffle is provided at the top of the inner end of the stirring blade. A display board is provided at the outer end of the stirring blade. When the stirring blade is in a horizontal state, the display board is upturned.

[0011] Optionally, a hinge groove is opened on one side of the stirring blade close to the display board. A hinge post is provided on one side of the display board close to the stirring blade. The hinge post is located inside the hinge groove. One side of the display board close to the stirring blade is made of a flexible sheet.

[0012] Optionally, the inclination angle of the stirring blade is adjusted by the adjusting motor. The number of the stirring blades is not less than six. When the six stirring blades are horizontal, they form a disc-shaped structure.

[0013] Optionally, the piping system includes a feed pipe and an exhaust pipe. A check valve and a ball valve are installed on the feed pipe. A pressure sensor is provided on the exhaust pipe. The sensing probe of the pressure sensor is arranged inside the kettle body. A discharge cylinder is provided at the bottom of the kettle body. A valve is provided on the discharge cylinder. A support frame is provided at the bottom of the kettle body.

[0014] Optionally, the temperature control mechanism includes a cold medium circulation system, a hot medium circulation system, and a temperature control cover body. The temperature control cover body is wrapped around the outside of the kettle body. A torque sensor is provided between the rotating shaft of the drive motor and the drive rod, and a bubble sensor is arranged inside the kettle body.

[0015] Optionally, the cleaning mechanism includes a second hydraulic cylinder provided at the top inside the kettle body, and an annular cleaning plate is provided at the telescopic end of the second hydraulic cylinder.

[0016] Technical effects and advantages of the present invention: 1. The present invention controls the horizontal height of the stirring unit through the drive motor, and uses the adjustment motor in the stirring unit to control the inclination angle of the stirring blade, so that the inclination angle of the stirring blade is more gentle according to the friction force between the mixed liquid and the stirring blade, thereby reducing the resistance encountered by the stirring blade during rotation in the mixed liquid and ensuring the stirring and mixing efficiency of the mixed liquid in the kettle body.

[0017] 2. During the stirring and mixing process of the mixed liquid by the stirring blade of the present invention, the defoaming unit rotates synchronously. The defoaming rod in the defoaming unit rotates on the top layer of the mixed liquid, and uses the shearing action of the defoaming rod on the top layer of the mixed liquid during rotation to accelerate the detachment speed of the bubbles on the top layer of the mixed liquid.

[0018] 3. The present invention drives the stirring blades to turn to the horizontal position respectively through multiple adjustment motors, the display board turns upward, and then through the contraction of the first hydraulic cylinder, the bottom end of the defoaming rod is inserted into the guide hole. Then, driven by the hydraulic rod, the stirring blades carry part of the mixed liquid upward out of the top layer of the mixed liquid. After the defoaming rod is separated from the guide hole, the mixed liquid at the top of the stirring blade falls through multiple guide holes, and the bubbles in the mixed liquid are eliminated during the falling process. Description of the drawings

[0019] Figure 1 It is a schematic diagram of the internal structure of the kettle body of the present invention; Figure 2 It is a schematic diagram of the structure of the rotating unit of the present invention; Figure 3 For the present invention Figure 2 Schematic diagram of the enlarged structure of area A in; Figure 4 It is a schematic diagram of the structure of the defoaming unit of the present invention; Figure 5 For the present invention Figure 4 Schematic diagram of the enlarged structure of area B in; Figure 6 It is a schematic diagram of the structure of the stirring unit of the present invention; Figure 7 For the present invention Figure 6 Schematic diagram of the enlarged structure of area C in.

[0020] In the figure: 1. Kettle body; 101. Discharge tube; 2. Temperature regulating mechanism; 3. Pipe system mechanism; 4. Rotating unit; 401. Driving motor; 402. Driving rod; 403. Hydraulic rod; 4031. Tensile sensing part; 404. Rotating seat; 4041. Annular groove; 4042. Guide groove; 4043. Reserved groove; 4044. Guiding groove; 4045. Limiting path; 5. Defoaming unit; 501. Annular seat; 502. Gear ring; 503. Power motor; 504. Power gear; 505. Mounting plate; 506. Defoaming rod; 507. Support ring; 6. Stirring unit; 601. Stirring blade; 6011. Baffle; 6012. Exhibition board; 6013. Guide hole; 602. First hydraulic cylinder; 603. Adjusting motor; 604. Fixed rod; 701. Second hydraulic cylinder; 702. Annular cleaning plate. Detailed implementation manners

[0021] In order to more clearly understand the above objects, features and advantages of the present invention, the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments. It should be noted that, without conflict, the embodiments of the present application and the features in the embodiments may be combined with each other.

[0022] In the following description, many specific details are set forth in order to fully understand the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the protection scope of the present invention is not limited by the specific embodiments disclosed below.

[0023] Embodiment 1 Please refer to Figures 1-7 , this embodiment discloses a self-cleaning reaction kettle for foam sealant, including a kettle body 1. A temperature regulating mechanism 2 is arranged on the outer side of the kettle body 1. A pipe system mechanism 3 is arranged on the top of the kettle body 1. The pipe system mechanism 3 includes a feed pipe and an exhaust pipe. A check valve and a ball valve are installed on the feed pipe. A pressure sensor is arranged on the exhaust pipe. The sensing probe of the pressure sensor is arranged inside the kettle body 1. A discharge tube 101 is arranged at the bottom of the kettle body 1. A valve is arranged on the discharge tube 101. A support frame is arranged at the bottom of the kettle body 1. The kettle body 1 is supported by the support frame. The pressure inside the kettle body 1 is detected by the pressure sensor, and the pressure inside the kettle body 1 is adjusted and released through the exhaust pipe. The check valve on the feed pipe prevents the backflow of gas or materials, ensuring the stability and safety of the reaction process. The addition speed of the materials is controlled by the ball valve on the feed pipe or the ball valve serves as the switch of the feed pipe.

[0024] The temperature regulating mechanism 2 includes a cold medium circulation system, a hot medium circulation system and a temperature control cover body. The temperature control cover body is wrapped around the outer side of the kettle body 1. Both the cold medium circulation system and the hot medium circulation system are communicated with the temperature control cover body on the outer side of the kettle body 1. According to the temperature detection result inside the kettle body 1, the temperature inside the kettle body 1 is regulated by the cold medium circulation system or the hot medium circulation system.

[0025] At the top of the kettle body 1, there is a rotating unit 4. The rotating unit 4 includes a driving motor 401 provided at the top of the kettle body 1. On the rotating shaft of the driving motor 401, there is a driving rod 402. The bottom of the driving rod 402 penetrates through the top of the kettle body 1 and is provided with a hydraulic rod 403. At the telescopic end of the hydraulic rod 403, there is a rotating seat 404. Between the telescopic end of the hydraulic rod 403 and the rotating seat 404, there is a tensile sensing member 4031. On the rotating seat 404, there are a defoaming unit 5 and a stirring unit 6. The driving motor 401 drives the hydraulic rod 403, the defoaming unit 5, and the stirring unit 6 to rotate, and the hydraulic rod 403 adjusts the up and down height of the defoaming unit 5 and the stirring unit 6.

[0026] The defoaming unit 5 includes a rotating part and a defoaming part. The rotating part includes an annular groove 4041 opened at the top of the rotating seat 404. Inside the annular groove 4041, there is an annular seat 501 rotatably connected. At the top of the annular groove 4041, there is a guiding groove 4042. At the top of the annular seat 501, there is a gear ring 502. Inside the guiding groove 4042, there is a reserved groove 4043. At the top of the reserved groove 4043, there is a power motor 503. On the power motor 503, there is a self-locking mechanism. The self-locking mechanism is an electromagnetic lock. When the self-locking mechanism is opened, it locks the rotating shaft of the power motor 503. On the rotating shaft of the power motor 503, there is a power gear 504. The power gear 504 is meshed with the gear ring 502. The defoaming part includes a mounting plate 505 provided on the outside of the annular seat 501. At the bottom of the mounting plate 505, there is a defoaming rod 506. On the outside of the mounting plate 505, there is a support ring 507. The power motor 503 drives the annular seat 501, the mounting plate 505, and the defoaming rod 506 to rotate through the power gear 504 and the gear ring 502, eliminating the bubbles on the top of the mixed liquid during the preparation of the polyurethane prepolymer and reducing the influence of the bubbles on the production quality of the polyurethane prepolymer.

[0027] The stirring unit 6 includes a lifting part and a stirring part. The lifting part includes a guiding groove 4044 opened at the bottom of the rotating seat 404. At the top of the guiding groove 4044, there is a first hydraulic cylinder 602. On the outside of the guiding groove 4044, there is a limiting track 4045. The stirring part includes an adjusting motor 603 provided at the telescopic end of the first hydraulic cylinder 602. On the rotating shaft of the adjusting motor 603, there is a fixing rod 604. The end of the fixing rod 604 away from the adjusting motor 603 penetrates through the limiting track 4045 and is provided with a stirring blade 601. On the stirring blade 601, there are guide holes 6013. There are two columns of guide holes 6013 on each stirring blade 601. The two columns of guide holes 6013 are arranged staggeredly. The number of columns of the guide holes 6013 is equal to the number of mounting plates 505. The defoaming rods 506 on adjacent two mounting plates 505 are arranged staggeredly and correspond to the positions of the guide holes 6013 one by one. The distance between adjacent two defoaming rods 506 is equal to the diameter of the defoaming rod 506.

[0028] The stirring vane 601 adjusts the tilt angle through the adjustment motor 603. The number of stirring vanes 601 is not less than six. When the six stirring vanes 601 are horizontal, they form a disc-shaped structure. A baffle 6011 is provided at the top of the inner end of the stirring vane 601, and a display board 6012 is provided at the outer end of the stirring vane 601.

[0029] After the stirring vane 601 is adjusted to be horizontal by the adjustment motor 603, the stirring vane 601 cooperates with the display board 6012 and the baffle 6011 to form a water storage tank at the top. The water storage tank contracts upward through cooperation with the hydraulic rod 403, driving the mixed liquid in the kettle body 1 to move upward.

[0030] During use, the raw materials for preparing the polyurethane prepolymer are premixed first. The temperature in the kettle body 1 is preheated by the heat medium circulation system in the temperature adjustment mechanism 2 first. The mixed mixed liquid is input into the kettle body 1 through the feed pipe. At the same time, the drive motor 401 drives the drive rod 402, the hydraulic rod 403, the rotating seat 404, the defoaming unit 5 and the stirring unit 6 to rotate synchronously. In the initial state, the stirring vane 601 is adjusted to be inclined by the adjustment motor 603. A liquid level gauge can be set in the kettle body 1. The liquid level height of the mixed liquid in the kettle body 1 is detected by the liquid level gauge. The hydraulic rod 403 adjusts the height of the rotating seat 404 through the telescopic end, so that the defoaming rod 506 is located at the top layer of the mixed liquid in the kettle body 1. At this time, the self-locking mechanism in the power motor 503 remains open, and the rotating shaft of the power motor 503 is locked and cannot rotate. The positions of the power gear 504, the gear ring 502, the annular seat 501, the mounting plate 505 and the defoaming rod 506 all remain fixed. Driven by the drive motor 401, the power motor 503, the power gear 504, the gear ring 502, the annular seat 501, the mounting plate 505, the defoaming rod 506 and the support ring 507 rotate around the center point of the rotating seat 404. During this process, the defoaming rod 506 continuously stirs the top layer of the mixed liquid. By using the shearing action of the defoaming rod 506 during rotation on the top layer of the mixed liquid, the upward detachment speed of the bubbles from the top layer of the mixed liquid is accelerated. At the same time, during the process of the drive motor 401 driving the stirring vane 601 and the defoaming rod 506 to rotate, the stirring vane 601 stirs and mixes the mixed liquid in the kettle body 1, and during the extension and contraction of the first hydraulic cylinder 602, the adjustment motor 603 and the fixed rod 604 adjust the up and down height of the stirring vane 601 in the mixed liquid, making the stirring vane 601 stir and mix the mixed liquid in the kettle body 1 more evenly.

[0031] However, during the stirring and mixing reaction of the mixed liquid, the viscosity of the mixed liquid will become higher and higher. The increasing viscosity in the mixed liquid will generate a greater and greater frictional force on the stirring vane 601, which will in turn lead to an increasing resistance of the stirring vane 601 during stirring in the mixed liquid, affecting the normal operation of the stirring vane 601 and the drive motor 401. For this reason: During the use process, a torque sensor is provided between the rotating shaft of the driving motor 401 and the driving rod 402. A torque threshold is preset in the torque sensor. During the stirring and mixing reaction of the mixed liquid, the viscosity of the mixed liquid gradually increases. When the preset torque threshold in the torque sensor is reached, the regulating motor 603 drives the stirring vane 601 to adjust the inclination angle through the fixed rod 604, making the inclination angle of the stirring vane 601 become gentler, so as to reduce the resistance encountered by the stirring vane 601 during the rotation in the mixed liquid.

[0032] A cleaning mechanism is provided inside the kettle body 1. The cleaning mechanism includes a second hydraulic cylinder 701 provided at the top inside the kettle body 1. The telescopic end of the second hydraulic cylinder 701 is provided with an annular cleaning plate 702. As the mixed liquid in the kettle body 1 undergoes the heating and stirring reaction, it will adhere to the inner wall of the kettle body 1, and the cleaning mechanism scrapes off the residue of the mixed liquid on the inner wall of the kettle body 1.

[0033] In addition, during the stirring process of the mixed liquid in the kettle body 1, the second hydraulic cylinder 701 is set with a start interval time. When the time for the second hydraulic cylinder 701 to start is reached, the second hydraulic cylinder 701 drives the annular cleaning plate 702 to move down to a position flush with the top surface of the mixed liquid in the kettle body 1, scraping the residue of the mixed liquid adhering to the inner wall of the kettle body 1 back into the mixed liquid to continue participating in the reaction.

[0034] When the mixed liquid in the kettle body 1 reaches the preset preparation time, it means that the chemical reaction has been completed under the action of the temperature and pressure in the kettle body 1, and a polyurethane prepolymer has been formed at this time. Subsequently, the polyurethane prepolymer is discharged outwards through the discharge tube 101 and is filled into a pressure-resistant aerosol can together with other components (such as foaming agents and catalysts, etc.) to complete the production of the foam sealant.

[0035] Embodiment 2 Please refer to Figures 1-7 , in actual use, bubbles will also be generated inside the mixed liquid. Due to the increasing viscosity of the mixed liquid, the bubbles in the mixed liquid are difficult to discharge and the number will become more and more, resulting in too high a porosity in the prepared polyurethane prepolymer, affecting the stability during use. In this regard, the following Embodiment 2 is provided to solve the above problems: During use, a bubble sensor is arranged inside the kettle body 1. The bubble sensor is used to detect whether there are bubbles in the mixed liquid. When the bubbles in the mixed liquid reach the preset density, the elimination of the bubbles in the mixed liquid is started. At this time, driven by the hydraulic rod 403, the stirring vane 601 remains inside the mixed liquid. Multiple regulating motors 603 respectively drive the stirring vane 601 to turn to the horizontal through the fixed rod 604. Then, multiple first hydraulic cylinders 602 contract synchronously, driving multiple stirring vanes 601 to move upward synchronously, so that the bottom end of the defoaming rod 506 correspondingly inserts into the guide hole 6013. At this time, multiple stirring vanes 601, multiple display boards 6012 and multiple baffles 6011 form an aggregation tank, and a part of the mixed liquid is aggregated in the aggregation tank. As the hydraulic rod 403 contracts, the mounting plate 505, the defoaming rod 506 and the stirring vane 601 are driven by the rotating seat 404 to move out of the top layer of the mixed liquid. Then, the first hydraulic cylinder 602 drives the regulating motor 603, the fixed rod 604 and the stirring vane 601 to move downward, so that the defoaming rod 506 disengages from the guide hole 6013. Under the control of the first hydraulic cylinder 602 on the height of the stirring vane 601, the bottom end of the defoaming rod 506 is kept corresponding to the position of the top layer of the mixed liquid on the stirring vane 601. At this time, the self-locking mechanism on the power motor 503 is closed, and the power motor 503 is started and drives the gear ring 502 to rotate through the power gear 504. Then, the mounting plate 505 and the defoaming rod 506 are driven to rotate through the annular seat 501, and the defoaming rod 506 is used to eliminate the bubbles on the top layer of the mixed liquid on the stirring vane 601. At the same time, under the influence of natural gravity, the mixed liquid at the top of the stirring vane 601 falls through the multiple guide holes 6013 distributed on the multiple stirring vanes 601. The voids generated by the bubbles are larger than the guide holes 6013, and the bubbles in the mixed liquid are eliminated during the falling process and then re-mixed with the whole mixed liquid.

[0036] In summary, the mixed liquid in the kettle body 1 is repeatedly moved upward by multiple stirring vanes 601, the bubbles on the top layer of the mixed liquid on the stirring vane 601 are eliminated by the power motor 503, and the mixed liquid is dispersed and falls from the multiple guide holes 6013 by relying on natural gravity, so as to improve the elimination speed of the bubbles in the mixed liquid in the kettle body 1.

[0037] Subsequently, adjust the motor 603 to drive the stirring vane 601 to be inclined again through the fixed rod 604, and through the extension of the hydraulic rod 403, make the stirring vane 601 enter the interior of the mixed liquid again. At this time, the first hydraulic cylinder 602 can be used to drive the stirring vane 601 to move to different heights. For example, make the stirring vane 601 close to the bottom of the mixed liquid. At this time, drive the stirring vane 601 to flip to the horizontal by multiple adjusting motors 603. Multiple stirring vanes 601, multiple display boards 6012 and multiple baffles 6011 form an aggregation tank again to collect the mixed liquid at the bottom of the kettle body 1. Then, the first hydraulic cylinder 602 slowly contracts, making the stirring vane 601 gradually move upward and making the guide hole 6013 correspond to the defoaming rod 506. Then, through the contraction of the hydraulic rod 403, the stirring vane 601 is moved out of the liquid level of the mixed liquid, and then through the extension of the first hydraulic cylinder 602, the guide hole 6013 is disengaged from the defoaming rod 506, realizing defoaming of the mixed liquid at the bottom of the kettle body 1 through natural gravity in cooperation with the guide hole 6013. In this way, bubbles in the mixed liquid or prepolymer at different heights in the kettle body 1 are eliminated. When the bubble sensor in the kettle body 1 detects that the bubble density in the mixed liquid is lower than the preset value, it indicates that the elimination of bubbles in the mixed liquid is completed.

[0038] In summary, driven by the first hydraulic cylinder 602, the horizontal height of the stirring vane 601 in the mixed liquid is adjusted, so that multiple stirring vanes 601 collect the mixed liquid at different horizontal heights, and are moved out of the top layer of the mixed liquid by the hydraulic rod 403 for defoaming, thereby improving the overall defoaming efficiency of the mixed liquid.

[0039] In addition, after the bubbles in the polyurethane prepolymer in the kettle body 1 are eliminated, although the prepolymer on the stirring vane 601 can fall through the guide hole 6013, due to the viscosity of the mixed liquid itself, a large amount of residue of the polyurethane prepolymer that cannot fall through the guide hole 6013 will adhere to the stirring vane 601. If these residues cannot be effectively utilized, it will cause waste of raw materials, and the accumulation of this part of the residue on the stirring vane 601 will also affect the uniformity during the next stirring of the mixed liquid, resulting in unstable or decreased quality of the produced products. For this reason, the following improvements are made: In use, after the polyurethane prepolymer is prepared and discharged outward through the discharge cylinder 101, at this time, the hydraulic rod 403 drives the rotating seat 404, the mounting plate 505, the defoaming rod 506 and the stirring blade 601 to move upward out of the polyurethane prepolymer. At this time, the polyurethane prepolymer on the stirring blade 601 falls through the inclined surface of the stirring blade 601, and the remaining polyurethane prepolymer on the stirring blade 601 is the residue. At this time, the plurality of adjusting motors 603 drive the stirring blade 601 to be turned to the horizontal respectively. Then, the first hydraulic cylinder 602 contracts to make the upper surface of the stirring blade 601 flush with the lower surface of the defoaming rod 506. At this time, the self-locking mechanism on the power motor 503 is closed, and the power motor 503 is started. The power motor 503 drives the gear ring 502 to rotate through the power gear 504, and then drives the mounting plate 505 and the defoaming rod 506 to rotate through the annular seat 501, and the defoaming rod 506 is used to scrape off the residue of the polyurethane prepolymer on the upper surface of the stirring blade 601. In the same way as the defoaming rod 506 scrapes off the residue of the polyurethane prepolymer on the upper surface of the stirring blade 601, when the first hydraulic cylinder 602 drives the stirring blade 601 to move downward, the adjusting motor 603 turns the stirring blade 601 by 180°, and then the contraction of the first hydraulic cylinder 602 makes the defoaming rod 506 flush with the lower surface of the stirring blade 601. By starting the power motor 503, the defoaming rod 506 scrapes off the residue of the polyurethane prepolymer on the lower surface of the stirring blade 601.

[0040] In summary, by making the top surface of the stirring blade 601 correspond to the lower surface of the defoaming rod 506, and then driving the defoaming rod 506 to rotate through the power motor 503, the residue of the polyurethane prepolymer on the upper surface of the stirring blade 601 is scraped off. In the same way, by turning the stirring blade 601 by 180° through the adjusting motor 603, the defoaming rod 506 scrapes off the polyurethane prepolymer on the lower surface of the stirring blade 601.

[0041] When the power motor 503 drives the mounting plate 505 and the defoaming rod 506 to rotate one circle, the power motor 503 is turned off. The first hydraulic cylinder 602 quickly drives the stirring blade 601 to move downward, and then the adjusting motor 603 turns the stirring blade 601 to a state close to vertical. At this time, the residue of the polyurethane prepolymer scraped off from the stirring blade 601 by the defoaming rod 506 is located at the bottom of the defoaming rod 506 and quickly drops downward by natural gravity. At the same time, through the extension of the second hydraulic cylinder 701, the annular cleaning plate 702 is driven to move downward to a position corresponding to the top of the stirring blade 601 in the vertical state. At this time, the adjusting motor 603 drives the stirring blade 601 to rotate forward and backward repeatedly, so that the stirring blade 601 strikes the bottom of the annular cleaning plate 702, and the vibration generated by the stirring blade 601 during the striking is used to accelerate the removal of the residue in the area not covered by the defoaming rod 506 on the stirring blade 601.

[0042] In summary, through the knocking effect formed by the stirring vane 601 on the bottom of the annular cleaning plate 702 in the vertical state, the stirring vane 601 generates vibration, and relying on the vibration effect of the stirring vane 601, the cleaning efficiency of the residues on the stirring vane 601 is improved.

[0043] The above are only the embodiments of the present invention, and do not limit the patent scope of the present invention accordingly. Any equivalent transformation made by using the content of the specification and drawings of the present invention, or directly or indirectly applied in the related technical fields, shall be similarly included in the patent protection scope of the present invention.

Claims

1. A self-cleaning reaction kettle for foam sealant, comprising a kettle body (1), characterized in that: A temperature adjustment mechanism (2) is provided on the outer side of the kettle body (1), a pipe system mechanism (3) is provided on the top of the kettle body (1), a rotating unit (4) is provided on the top of the kettle body (1), and a cleaning mechanism is provided inside the kettle body (1). The rotating unit (4) includes a driving motor (401) provided on the top of the kettle body (1). A driving rod (402) is provided on the rotating shaft of the driving motor (401). The bottom of the driving rod (402) penetrates through the top of the kettle body (1) and a hydraulic rod (403) is provided. A rotating seat (404) is provided at the telescopic end of the hydraulic rod (403). A defoaming unit (5) and a stirring unit (6) are provided on the rotating seat (404). The defoaming unit (5) includes a rotating part and a defoaming part. The stirring unit (6) includes a lifting part and a stirring part. The lifting part includes a guiding groove (4044) opened at the bottom of the rotating seat (404). A first hydraulic cylinder (602) is provided at the top of the guiding groove (4044). A limiting channel (4045) is provided on the outer side of the guiding groove (4044). The stirring part includes an adjusting motor (603) provided at the telescopic end of the first hydraulic cylinder (602). A fixing rod (604) is provided on the rotating shaft of the adjusting motor (603). One end of the fixing rod (604) away from the adjusting motor (603) penetrates through the limiting channel (4045) and a stirring blade (601) is provided. A guiding hole (6013) is opened on the stirring blade (601). There are two columns of the guiding holes (6013), and the two columns of the guiding holes (6013) are arranged staggeredly.

2. The self-cleaning reaction kettle for foam sealant according to claim 1, characterized in that: A tension sensing member (4031) is provided between the telescopic end of the hydraulic rod (403) and the rotating seat (404). The rotating part includes an annular groove (4041) opened at the top of the rotating seat (404). A guiding groove (4042) is opened at the top of the annular groove (4041). A reserved groove (4043) is opened on the inner side of the guiding groove (4042). An annular seat (501) is rotatably connected inside the annular groove (4041). A toothed ring (502) is provided on the top of the annular seat (501). A power motor (503) is provided at the top of the reserved groove (4043). A power gear (504) is provided on the rotating shaft of the power motor (503). The power gear (504) is meshed with the toothed ring (502). The defoaming part includes a mounting plate (505) provided on the outer side of the annular seat (501). A defoaming rod (506) is provided at the bottom of the mounting plate (505). A support ring (507) is provided on the outer side of the mounting plate (505).

3. The self-cleaning reaction kettle for foam caulking agent according to claim 1, characterized in that: The number of columns of the guiding holes (6013) is equal to the number of mounting plates (505). The defoaming rods (506) on adjacent two mounting plates (505) are arranged staggeredly and are in one-to-one correspondence with the positions of the guiding holes (6013).

4. The self-cleaning reactor for foam sealant according to claim 3, wherein: A baffle (6011) is provided at the top of the inner end of the stirring blade (601). A display board (6012) is provided at the outer end of the stirring blade (601). When the stirring blade (601) is in a horizontal state, the display board (6012) is in an upwardly warped shape.

5. The self-cleaning reactor for foam sealant according to claim 4, characterized in that: One side of the stirring vane (601) close to the display board (6012) is provided with a hinge groove. One side of the display board (6012) close to the stirring vane (601) is provided with a hinge post. The hinge post is located inside the hinge groove. One side of the display board (6012) close to the stirring vane (601) is made of a flexible sheet.

6. The self-cleaning reactor for foam sealant according to claim 5, characterized in that: The inclination angle of the stirring vane (601) is adjusted by an adjustment motor (603). The number of the stirring vanes (601) is not less than six. When the six stirring vanes (601) are horizontal, they form a disc-shaped structure.

7. The self-cleaning reaction kettle for foam caulking agent according to claim 1, wherein: The pipe system mechanism (3) includes a feed pipe and an exhaust pipe. A check valve and a ball valve are installed on the feed pipe. A pressure sensor is provided on the exhaust pipe. The sensing probe of the pressure sensor is arranged inside the kettle body (1). A discharge cylinder (101) is provided at the bottom of the kettle body (1). A valve is provided on the discharge cylinder (101). A support frame is provided at the bottom of the kettle body (1).

8. The self-cleaning reaction kettle for foam caulking agent according to claim 1, characterized in that: The temperature adjustment mechanism (2) includes a cold medium circulation system, a hot medium circulation system and a temperature control housing. The temperature control housing is wrapped outside the kettle body (1). A torque sensor is provided between the rotating shaft of the driving motor (401) and the driving rod (402). A bubble sensor is arranged inside the kettle body (1).

9. The self-cleaning reaction kettle for foam sealant according to claim 1, wherein: The cleaning mechanism includes a second hydraulic cylinder (701) arranged at the inner top of the kettle body (1). The telescopic end of the second hydraulic cylinder (701) is provided with an annular cleaning plate (702).

Images