Polyurethane casting device with added superhard filler

Abstract

The application discloses a polyurethane pouring device with superhard filler, relates to the technical field of polyurethane pouring equipment, and realizes automatic pouring of different pouring points and reduces labor cost through the following steps: the stirring mechanism is used for preliminarily mixing polyurethane and superhard filler, the guide block is arranged in the stirring paddle of the stirring mechanism to guide the flow direction of liquid, the abrasion of the equipment is reduced, and the service life of the equipment is prolonged; then the preliminarily mixed polyurethane stock solution is transported to the discharging mechanism, the discharging mechanism is used for further mixing and refining, the moving mechanism is used for moving the discharging mechanism, and pouring is performed through the pouring port of the discharging mechanism.

Description

Technical Field

[0001] This invention relates to the field of polyurethane casting equipment technology, specifically a polyurethane casting device with added ultra-hard filler. Background Technology

[0002] Polyurethane is a high-performance polymer material with excellent physical properties and chemical stability. It has good elasticity, wear resistance, aging resistance, and chemical corrosion resistance. These properties make polyurethane a promising material for the civil engineering industry. Adding superhard fillers during the polyurethane casting process can significantly improve the material's hardness and strength, while also enhancing its wear resistance, impact resistance, and corrosion resistance. In the civil engineering industry, the superior properties of polyurethane casting materials and the reinforcing effect of superhard fillers can be used to manufacture structural components such as bridge bearings and tunnel linings that need to withstand large loads and impacts, thereby improving the overall structural stability and durability.

[0003] Current polyurethane casting equipment, when requiring the addition of superhard fillers, experiences increased viscosity due to the addition of superhard fillers. This increased resistance to the mixing structure makes mixing more difficult, leading to poor uniformity in the mixing of polyurethane and superhard fillers. This can result in uneven mixing, affecting product quality. Furthermore, the high hardness of superhard fillers causes significant wear on the equipment, reducing its lifespan and increasing maintenance costs. Additionally, the need for manual movement of the casting pipes during casting at different points increases labor costs. Summary of the Invention

[0004] The purpose of this invention is to provide a polyurethane casting apparatus with added superhard filler to solve the problems mentioned in the prior art.

[0005] To achieve the above objectives, the present invention provides the following technical solution:

[0006] A polyurethane casting device with added superhard filler is provided. The casting device includes a base, a raw material tank, a stirring mechanism, a feeding mechanism, a discharging mechanism, and a moving mechanism. The base and the raw material tank are fixedly connected. The raw material tank and the stirring mechanism are connected by a pipeline. The feeding mechanism and the stirring mechanism are connected by a pipeline. The feeding mechanism and the base are fixedly connected. The discharging mechanism and the stirring mechanism are connected by a pipeline. The moving mechanism and the base are fixedly connected. The discharging mechanism and the moving mechanism are fixedly connected.

[0007] The polyurethane raw materials stored in the raw material tank are transported to the mixing mechanism via pipeline by a metering pump inside the tank. The mixing mechanism agitates the raw materials to ensure uniformity and flowability. The superhard filler is then transported to the mixing mechanism via a feeding mechanism, where the polyurethane and superhard filler are initially mixed. The discharge mechanism is connected to the mixing mechanism via a pipeline, and the initially mixed polyurethane concentrate is transported to the discharge mechanism via a rotor pump. The discharge mechanism further mixes and refines the polyurethane concentrate before it is poured through the pouring port. The discharge mechanism is moved by a moving mechanism to achieve automatic pouring at different pouring points, reducing labor costs.

[0008] Furthermore, the mixing mechanism includes a first support base, a mixing tank, a first machine base, a first motor, a first transmission rod, a first mixing paddle, a second mixing paddle, a third mixing paddle, and a heating element. The first support base is fixedly connected to the base, the mixing tank is fixedly connected to the first support base, the first machine base is fixedly connected to the mixing tank, the first motor is fixedly connected to the first machine base, and the output end of the first motor is fixedly connected to the first transmission rod. The mixing tank has a first mixing trough, the first mixing paddle is placed in the first mixing trough, and the first mixing paddle is driven by the first transmission rod. The second mixing paddle is placed in the first mixing trough, and the second mixing paddle is driven by the first transmission rod. The third mixing paddle is placed in the first mixing trough, and the third mixing paddle is driven by the first transmission rod. The mixing tank has an installation groove, and the heating element is placed in the installation groove. The mixing tank has several feed inlets, and the raw material tank is connected to the feed inlet pipe. The mixing tank has an output port, and the discharge mechanism is connected to the output port pipe.

[0009] By setting up several feed inlets, the superhard filler is dispersed into the No. 1 mixing tank, reducing the pressure on the agitator and allowing the superhard filler to mix rapidly with the polyurethane. The No. 1 motor drives the No. 1 transmission rod to rotate, which in turn drives the No. 1, No. 2, and No. 3 agitators to stir the polyurethane and superhard filler in the No. 1 mixing tank. The rotation of the No. 1 agitator generates centrifugal force and axial thrust in the polyurethane concentrate, and the impeller generates shear force on the polyurethane, causing the superhard filler entering from the feed inlets to quickly disperse into the polyurethane, thus ensuring uniform mixing of the polyurethane concentrate. The rotation of the No. 2 agitator generates centrifugal force and axial thrust, further mixing the polyurethane concentrate and superhard filler in the No. 1 mixing tank. The blades of the No. 2 agitator are in close contact with the inner wall of the mixing tank, allowing the blades to scrape against the inner wall and prevent the raw liquid from forming scale. This also causes the liquid near the inner wall to flow at high speed, reducing sedimentation on the wall surface and directing the liquid towards the No. 1 drive rod, avoiding dead zones and increasing the mixing range. The No. 3 agitator generates radial thrust, causing the liquid to flow up and down, preventing the polyurethane raw liquid from settling. The combination of the No. 1, No. 2, and No. 3 agitators provides comprehensive mixing of the polyurethane raw liquid and the superhard filler, ensuring thorough mixing. A heating element heats the polyurethane and superhard filler in the No. 1 mixing tank, preventing them from cooling and solidifying during mixing.

[0010] Furthermore, the No. 1 stirring paddle includes a No. 1 bushing, a No. 1 stirring blade, a No. 1 spring, and a No. 1 locking block. The No. 1 bushing is provided with a rotating groove, which is slidably connected to the No. 1 transmission rod. The No. 1 stirring blade is fixedly connected to the No. 1 bushing. The No. 1 bushing is provided with a sliding groove, in which the No. 1 spring is placed. The No. 1 locking block is fixedly connected to the No. 1 spring. The No. 1 transmission rod is provided with an L-shaped locking block, which is provided with a groove, and the groove and the L-shaped locking block cooperate with each other.

[0011] The first bushing's rotating groove allows it to rotate on the first transmission rod. The first locking block has a groove that engages with the L-shaped locking block, enabling the first transmission rod to drive the first bushing to rotate. The first bushing has a sliding groove; when the first transmission rod reverses direction, the L-shaped locking block pushes the first locking block into the sliding groove, preventing the first bushing from reversing with the first transmission rod. This avoids wear on the first stirring blade caused by reversal and extends the service life of the first stirring paddle. The first spring allows the first locking block to reset, continuing to provide power for forward rotation. The first stirring blade generates shear force on the polyurethane.

[0012] Furthermore, the second stirring paddle includes a second bushing, a second stirring blade, a guide block, a connecting rod, and a second locking block. The second bushing is connected to the first transmission rod, the second stirring blade is fixedly connected to the second bushing, the connecting rod is rotatably connected to the second stirring blade, the second locking block is fixedly connected to the connecting rod, the guide block is slidably connected to the second stirring blade, the second stirring blade is provided with a limiting groove, and the second locking block is placed in the limiting groove.

[0013] The transmission is achieved through a welded connection between the No. 2 bushing and the No. 1 transmission rod, resulting in a more compact structure. This allows the bushing and the No. 1 transmission rod to rotate synchronously, driving the No. 2 stirring blade to rotate. The No. 2 stirring blade adheres closely to the inner wall of the mixing tank, scraping against it to prevent scale buildup and promoting high-speed flow of the liquid near the inner wall. This reduces sedimentation and directs the liquid towards the No. 1 transmission rod, preventing dead zones and increasing the mixing range. A guide block directs the liquid flow, making it more perpendicular to the No. 2 stirring blade, thus shortening the distance traveled. A No. 2 locking block rotates within a limiting groove, allowing the guide block, connected to the connecting rod, to rotate in a specific direction with the liquid flow, further guiding the flow and reducing direct impact on the No. 2 stirring blade. This reduces resistance and, by minimizing direct impact, reduces wear on the blade from the ultra-hard packing, extending its service life.

[0014] Furthermore, the feeding mechanism includes a second motor, a second base, a conveying pipe, spiral blades, a second transmission rod, a feeding hopper, and a discharging pipe. The conveying pipe is fixedly connected to the base, the second base is fixedly connected to the conveying pipe, the second motor is fixedly connected to the second base, the output end of the second motor is fixedly connected to the second transmission rod, the conveying pipe is provided with a conveying groove, the spiral blades are placed in the conveying groove, the spiral blades are fixedly connected to the second transmission rod, the conveying pipe is connected to the feeding hopper pipe, the discharging pipe is fixedly connected to the conveying pipe, and the discharging pipe is connected to the feeding port pipe.

[0015] The superhard filler is fed into the conveying pipe through the feed funnel. The second motor drives the second transmission rod to rotate, which in turn drives the spiral blades to rotate in the conveying trough. The rotation of the spiral blades causes the superhard filler to move forward in the conveying trough along the axis of the second transmission rod. The superhard filler is then conveyed to the discharge pipe, which is connected to the feed inlet pipe, allowing the superhard filler to be conveyed into the first mixing tank along the pipe.

[0016] Furthermore, the discharge mechanism includes a shell, a No. 3 base, a No. 3 motor, a No. 3 transmission rod, a No. 4 stirring paddle, and a No. 5 stirring paddle. The shell and the moving mechanism are fixedly connected, the No. 3 base and the shell are fixedly connected, the No. 3 motor and the No. 3 base are fixedly connected, the output end of the No. 3 motor is fixedly connected to the No. 2 transmission rod, the No. 3 transmission rod and the shell are rotatably connected, the shell is provided with a No. 2 mixing tank, the No. 4 stirring paddle is placed in the No. 2 mixing tank, the No. 3 transmission rod and the No. 4 stirring paddle are connected by a transmission connection, the No. 5 stirring paddle is placed in the No. 2 mixing tank, the No. 2 transmission rod and the No. 5 stirring paddle are connected by a transmission connection, the shell is provided with a discharge port, and the No. 2 mixing tank and the discharge port are connected by a pipe.

[0017] The pre-mixed polyurethane concentrate is pumped into the No. 2 mixing tank. The No. 3 motor drives the No. 3 transmission rod to rotate, which in turn drives the No. 4 and No. 5 agitators to rotate. The centrifugal force generated by the blades of the No. 4 agitator pushes the concentrate outward, and the shear force generated by the blades further mixes the concentrate horizontally. The No. 5 agitator causes the concentrate to flow up and down, thoroughly mixing the polyurethane and superhard filler, further refining the mixture. The outer shell has a discharge port with a needle valve installed on it to precisely control the flow rate of the polyurethane.

[0018] Furthermore, the moving mechanism includes a second support base, a first slide block, a slide base, a second slide block, and a control unit. The second support base is fixedly connected to the base, the first slide block and the second support base are slidably connected, the slide base and the first slide block are slidably connected, the second slide block and the slide base are slidably connected, the second slide block and the outer shell are fixedly connected, the control unit and the second support base are fixedly connected, the control unit and the first slide block are connected, the control unit and the slide base are connected, and the control unit and the second slide block are connected.

[0019] The discharge mechanism can move laterally by sliding the first slide block and the second support seat together. It can also move longitudinally by sliding the slide seat and the first slide block together. Furthermore, it can move up and down by sliding the second slide block and the slide seat together. The control unit automates the movement of the discharge mechanism, reducing labor costs.

[0020] Furthermore, the control unit includes motor number 4, lead screw number 1, fixed block number 1, motor number 5, lead screw number 2, fixed block number 2, motor number 6, lead screw number 3, and fixed block number 3. Motor number 4 is fixedly connected to support base number 2, lead screw number 1 is rotatably connected to fixed block number 1, the output end of motor number 4 is fixedly connected to lead screw number 1, fixed block number 1 is fixedly connected to support base number 2, motor number 4 is fixedly connected to ram seat number 1, lead screw number 1 is drivenly connected to ram seat number 1, lead screw number 2 is rotatably connected to fixed block number 2, the output end of motor number 5 is fixedly connected to lead screw number 2, fixed block number 2 is fixedly connected to ram seat number 1, motor number 5 is fixedly connected to ram seat number 1, lead screw number 2 is drivenly connected to slide seat number 6, motor number 6 is fixedly connected to slide seat number 6, lead screw number 3 is rotatably connected to fixed block number 3, the output end of motor number 6 is fixedly connected to lead screw number 3, fixed block number 3 is fixedly connected to slide seat number 1, and lead screw number 3 is drivenly connected to ram seat number 2.

[0021] A through hole with an internal thread is provided in the No. 1 slide. This internal thread engages with the external thread of the No. 1 lead screw, thus connecting the No. 1 lead screw and the No. 1 slide. Driven by the No. 4 motor, the No. 1 lead screw rotates, causing the No. 1 slide to move along the No. 1 lead screw, allowing it to move laterally along the No. 2 support. A through hole with an internal thread is provided in the slide block. This internal thread engages with the external thread of the No. 2 lead screw, thus connecting the No. 2 lead screw and the slide block. Driven by the No. 5 motor, the No. 2 lead screw rotates, causing the slide block to move along the No. 1 slide. The longitudinal movement is achieved through a through hole in the No. 2 slide, which has an internal thread. This internal thread engages with the external thread of the No. 3 lead screw, connecting the No. 3 lead screw and the No. 2 slide. Driven by the No. 6 motor, the No. 3 lead screw rotates, causing the No. 2 slide to move on the No. 3 lead screw, thus realizing the lifting and lowering movement of the No. 2 slide. The No. 2 slide is fixedly connected to the outer shell, thereby controlling the lateral, longitudinal, and lifting movements of the discharge mechanism. The rotation of the lead screw controlled by the motor automates the movement of the discharge mechanism, enabling automatic pouring at different pouring points and reducing labor costs.

[0022] Compared with the prior art, the beneficial effects of the present invention are:

[0023] 1. By using a guide block whose angle can be adjusted according to the liquid flow, the liquid flow direction is guided, making the liquid flow direction closer to the direction perpendicular to the No. 2 stirring blade, thereby shortening the distance that the liquid flows over the No. 2 stirring blade, thus reducing the direct collision of the liquid with the No. 2 stirring blade, and thus reducing the resistance of the liquid to the No. 2 stirring blade. By reducing the direct collision, the superhard packing reduces the collision with the No. 2 stirring blade, thereby reducing the wear of the No. 2 stirring blade and thus improving its service life.

[0024] 2. The first locking block has a groove, which engages with the L-shaped locking block to allow the first transmission rod to drive the first bushing to rotate, enabling the first stirring paddle to rotate in the forward direction. The first bushing has a sliding groove. When the first motor drives the first transmission rod to rotate in reverse, the L-shaped locking block pushes the first locking block to slide into the sliding groove, preventing the first stirring paddle from rotating in reverse with the first transmission rod, reducing the load on the motor, and avoiding wear on the first stirring blades caused by reverse rotation, thus extending the service life of the first stirring paddle. The forward and reverse rotation causes the superhard filler and polyurethane raw liquid to collide with each other, making them mix faster and improving the stirring efficiency. The forward and reverse rotation of the third stirring paddle causes the raw liquid to flow up and down, effectively preventing the sedimentation of the raw liquid.

[0025] 3. The mixing and discharging mechanisms are equipped with structures capable of mixing polyurethane, forming a multi-stage mixing mechanism that allows the polyurethane to be fully mixed with the superhard filler.

[0026] 4. The moving mechanism enables the discharge mechanism to move laterally, longitudinally, and vertically via motor No. 4, thereby achieving automatic pouring at different pouring points and reducing labor costs. Attached Figure Description

[0027] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0028] Figure 2 This is a schematic diagram of the stirring mechanism of the present invention;

[0029] Figure 3 yes Figure 2 A magnified view of part A;

[0030] Figure 4 This is a schematic diagram showing the connection between the No. 1 stirring paddle and the No. 1 transmission rod of the present invention;

[0031] Figure 5 yes Figure 4 A magnified view of part B;

[0032] Figure 6 This is a schematic diagram of the structure of the first card block of the present invention;

[0033] Figure 7 This is a schematic diagram of the No. 2 stirring paddle structure of the present invention;

[0034] Figure 8 yes Figure 7 A magnified view of a portion of C;

[0035] Figure 9 This is a schematic diagram of the limiting groove structure of the present invention;

[0036] Figure 10 This is a schematic diagram of the feeding mechanism of the present invention;

[0037] Figure 11 This is a schematic diagram of the material discharge mechanism of the present invention;

[0038] Figure 12 This is a schematic diagram of the moving mechanism of the present invention.

[0039] In the diagram: 1. Base; 2. Raw material tank; 3. Stirring mechanism; 31. Support No. 1; 32. Stirring barrel; 321. Stirring tank No. 1; 322. Mounting slot; 323. Feed inlet; 324. Output port; 33. Machine base No. 1; 34. Motor No. 1; 35. Transmission rod No. 1; 351. L-shaped locking block; 36. Stirring paddle No. 1; 361. Bushing No. 1; 3611. Rotating slot; 3612. Sliding slot; 362. Stirring blade No. 1; 363. Spring No. 1; 364. Locking block No. 1; 3641. Groove; 37. Stirring paddle No. 2; 371. Bushing No. 2; 372. Stirring blade No. 2; 3721. Limiting slot; 373. Guide block; 374. Connecting rod; 375. Locking block No. 2; 38. Stirring paddle No. 3; 39. Heating tube; 4. Feeding mechanism; 41. Motor No. 2; 42. Machine base No. 2; 43. Conveying pipe; 44. Spiral blade; 45. Transmission rod No. 2; 46. Feeding funnel; 47. Discharge pipe; 5. Discharge mechanism; 51. Outer shell; 511. Mixing tank No. 2; 52. Machine base No. 3; 53. Motor No. 3; 54. Transmission rod No. 3; 55. Mixing paddle No. 4; 56. Mixing paddle No. 5; 6. Moving mechanism; 61. Support base No. 2; 62. Slide No. 1; 63. Slide seat; 64. Slide No. 2; 65. Control unit; 651. Motor No. 4; 652. Lead screw No. 1; 653. Fixing block No. 1; 654. Motor No. 5; 655. Lead screw No. 2; 656. Fixing block No. 2; 657. Motor No. 6; 658. Lead screw No. 3; 659. Fixing block No. 3. Detailed Implementation

[0040] Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0041] Example: Figures 1-11 As shown, the present invention provides a technical solution for a polyurethane casting device with added superhard filler. The casting device includes a base 1, a raw material tank 2, a stirring mechanism 3, a feeding mechanism 4, a discharging mechanism 5, and a moving mechanism 6. The base 1 and the raw material tank 2 are fixedly connected, the raw material tank 2 and the stirring mechanism 3 are connected by a pipe, the feeding mechanism 4 and the stirring mechanism 3 are connected by a pipe, the feeding mechanism 4 and the base 1 are fixedly connected, the discharging mechanism 5 and the stirring mechanism 3 are connected by a pipe, the moving mechanism 6 and the base 1 are fixedly connected, and the discharging mechanism 5 and the moving mechanism 6 are fixedly connected.

[0042] The polyurethane raw materials stored in the raw material tank 2 are transported to the mixing mechanism 3 via pipeline through a metering pump inside the raw material tank 2. The mixing mechanism 3 mixes the raw materials to ensure uniformity and flowability. The superhard filler is then transported to the mixing mechanism 3 via the feeding mechanism 4. The polyurethane and superhard filler are initially mixed in the mixing mechanism 3. The discharge mechanism 5 is connected to the mixing mechanism 3 via a pipeline, and the initially mixed polyurethane liquid is transported to the discharge mechanism 5 via a rotor pump. The discharge mechanism 5 further mixes and refines the polyurethane, and then pours it through the pouring port of the discharge mechanism 5. The moving mechanism 6 moves the discharge mechanism 5, thereby realizing automatic pouring at different pouring points and reducing labor costs.

[0043] like Figures 1-3 As shown, the stirring mechanism 3 includes a first support base 31, a stirring tank 32, a first machine base 33, a first motor 34, a first transmission rod 35, a first stirring paddle 36, a second stirring paddle 37, a third stirring paddle 38, and a heating tube 39. The first support base 31 is fixedly connected to the base 1, the stirring tank 32 is fixedly connected to the first support base 31, the first machine base 33 is fixedly connected to the stirring tank 32, the first motor 34 is fixedly connected to the first machine base 33, and the output end of the first motor 34 is fixedly connected to the first transmission rod 35. The stirring tank 32 is provided with a first stirring trough 321, and the first stirring paddle 36 is placed in the first stirring trough. Inside the tank 321, the first stirring paddle 36 and the first transmission rod 35 are connected by transmission. The second stirring paddle 37 is placed inside the first stirring tank 321 and is connected by transmission to the first transmission rod 35. The third stirring paddle 38 is placed inside the first stirring tank 321 and is connected by transmission to the first transmission rod 35. The mixing tank 32 is provided with an installation groove 322, and the heating pipe 39 is placed inside the installation groove 322. The mixing tank 32 is provided with several feed inlets 323. The raw material tank 2 is connected to the feed inlets 323 by pipes. The mixing tank 32 is provided with an output port 324, and the discharge mechanism 5 is connected to the output port 324 by pipes.

[0044] By setting several feed inlets 323, the superhard filler is dispersed into the No. 1 mixing tank 321, reducing the pressure on the agitator and allowing the superhard filler to mix rapidly with the polyurethane. The No. 1 motor 34 drives the No. 1 transmission rod 35 to rotate, which in turn drives the No. 1 agitator 36, No. 2 agitator 37, and No. 3 agitator 38 to rotate, stirring the polyurethane and superhard filler in the No. 1 mixing tank 321. The rotation of the No. 1 agitator 36 generates centrifugal force and axial thrust in the polyurethane concentrate, and the impeller generates shear force on the polyurethane, causing the superhard filler entering from the feed inlets 323 to be quickly dispersed into the polyurethane, thus ensuring uniform mixing of the polyurethane concentrate. The rotation of the blades of the No. 2 agitator 37 generates centrifugal force and axial thrust, causing the polyurethane concentrate and superhard filler to mix rapidly in the No. 1 mixing tank 321. Internal mixing is achieved by the blades of the second stirring paddle 37 adhering to the inner wall of the mixing tank, allowing the blades to scrape against the inner wall and preventing the raw liquid from forming scale. This also causes the liquid near the inner wall to flow at high speed, reducing sedimentation on the wall surface and directing the liquid towards the first drive rod 35, avoiding dead zones and increasing the mixing range. The third stirring paddle 38 generates radial thrust, causing the liquid to flow up and down, preventing the polyurethane raw liquid from settling. The combination of the first stirring paddle 36, the second stirring paddle 37, and the third stirring paddle 38 provides comprehensive mixing of the polyurethane raw liquid and the superhard filler, ensuring thorough mixing. The heating pipe 39 heats the polyurethane and superhard filler in the first mixing tank 321, preventing them from cooling and solidifying during mixing.

[0045] like Figures 3-6 As shown, the first stirring paddle 36 includes a first bushing 361, a first stirring blade 362, a first spring 363, and a first locking block 364. The first bushing 361 is provided with a rotating groove 3611, which is slidably connected to the first transmission rod 35. The first stirring blade 362 is fixedly connected to the first bushing 361. The first bushing 361 is provided with a sliding groove 3612, and the first spring 363 is placed in the sliding groove 3612. The first locking block 364 is fixedly connected to the first spring 363. The first transmission rod 35 is provided with an L-shaped locking block 351, and the first locking block 364 is provided with a groove 3641, which cooperates with the L-shaped locking block 351.

[0046] The first bushing 361 rotates on the first transmission rod 35 via the rotating groove 3611. The first locking block 364 has a groove 3641, which engages with the L-shaped locking block 351, allowing the first transmission rod 35 to drive the first bushing 361 to rotate. The first bushing 361 has a sliding groove 3612. When the first transmission rod 35 reverses, the L-shaped locking block 351 pushes the first locking block 364 to slide into the sliding groove 3612, preventing the first bushing 361 from reversing with the first transmission rod 35. This avoids wear on the first stirring blade 362 caused by reversal and extends the service life of the first stirring paddle 36. The first spring 363 resets the first locking block 364, allowing it to continue providing power for forward rotation. The first stirring blade 362 generates shear force on the polyurethane.

[0047] like Figure 3 and Figures 7-9 As shown, the second stirring paddle 37 includes a second bushing 371, a second stirring blade 372, a guide block 373, a connecting rod 374, and a second locking block 375. The second bushing 371 is connected to the first transmission rod 35. The second stirring blade 372 is fixedly connected to the second bushing 371. The connecting rod 374 is rotatably connected to the second stirring blade 372. The second locking block 375 is fixedly connected to the connecting rod 374. The guide block 373 is slidably connected to the second stirring blade 372. The second stirring blade 372 is provided with a limiting groove 3721, and the second locking block 375 is placed in the limiting groove 3721.

[0048] The transmission is achieved through a welded connection between the second bushing 371 and the first transmission rod 35, resulting in a more compact structure. This allows the bushing and the first transmission rod 35 to rotate synchronously, driving the second stirring blade 372 to rotate. The second stirring blade 372 adheres to the inner wall of the mixing tank, allowing it to scrape against the wall and prevent scale buildup. It also promotes high-speed flow of the liquid near the inner wall, reducing sedimentation and directing the liquid towards the first transmission rod 35, thus avoiding dead zones and increasing the mixing range. The guide block 373 guides the flow direction of the liquid. The flow direction of the liquid is closer to that perpendicular to the second stirring blade 372, thereby shortening the distance the liquid travels through the second stirring blade 372. By rotating the second locking block 375 within the limiting groove 3721, the guide block 373, connected to the connecting rod 374, can rotate in a certain direction with the liquid flow, further guiding the direction of the liquid flow. This reduces the direct collision of the liquid with the second stirring blade 372, thereby reducing the resistance of the liquid to the second stirring blade 372. By reducing the direct collision, the ultra-hard packing reduces the impact on the second stirring blade 372, thereby reducing the wear of the second stirring blade 372 and improving its service life.

[0049] like Figure 10 As shown, the feeding mechanism 4 includes a second motor 41, a second base 42, a conveying pipe 43, a spiral blade 44, a second transmission rod 45, a feeding funnel 46, and a discharge pipe 47. The conveying pipe 43 is fixedly connected to the base 1, the second base 42 is fixedly connected to the conveying pipe 43, the second motor 41 is fixedly connected to the second base 42, the output end of the second motor 41 is fixedly connected to the second transmission rod 45, the conveying pipe 43 is provided with a conveying groove, the spiral blade 44 is placed in the conveying groove, the spiral blade 44 is fixedly connected to the second transmission rod 45, the conveying pipe 43 is pipe-connected to the feeding funnel 46, the discharge pipe 47 is fixedly connected to the conveying pipe 43, and the discharge pipe 47 is pipe-connected to the inlet 323.

[0050] The superhard filler is fed to the conveying pipe 43 through the feed hopper 46. The second motor 41 drives the second transmission rod 45 to rotate, which in turn drives the spiral blade 44 to rotate in the conveying trough. The rotation of the spiral blade 44 causes the superhard filler to move forward in the conveying trough along the axis of the second transmission rod 45. The superhard filler is conveyed to the discharge pipe 47. The discharge pipe 47 is connected to the feed port 323, which allows the superhard filler to be conveyed to the first mixing tank 321 along the pipeline.

[0051] like Figure 11 As shown, the discharge mechanism 5 includes a housing 51, a third base 52, a third motor 53, a third transmission rod 54, a fourth stirring paddle 55, and a fifth stirring paddle 56. The housing 51 is fixedly connected to the moving mechanism 6, the third base 52 is fixedly connected to the housing 51, the third motor 53 is fixedly connected to the third base 52, the output end of the third motor 53 is fixedly connected to the second transmission rod 45, the third transmission rod 54 is rotatably connected to the housing 51, the housing 51 is provided with a second stirring tank 511, the fourth stirring paddle 55 is placed in the second stirring tank 511, the third transmission rod 54 and the fourth stirring paddle 55 are connected by a transmission, the fifth stirring paddle 56 is placed in the second stirring tank 511, the second transmission rod 45 and the fifth stirring paddle 56 are connected by a transmission, the housing 51 is provided with a discharge port, and the second stirring tank 511 and the output port 324 are connected by a pipe.

[0052] The pre-mixed polyurethane stock solution is pumped into the No. 2 mixing tank 511. The No. 3 motor 53 drives the No. 3 transmission rod 54 to rotate, which in turn drives the No. 4 mixing blade 55 and the No. 5 mixing blade 56 to rotate. The centrifugal force generated by the mixing blades of the No. 4 mixing blade 55 pushes the stock solution outward, and the shear force generated by the mixing blades further mixes the stock solution horizontally. The No. 5 mixing blade 56 causes the stock solution to flow up and down, which comprehensively mixes the polyurethane and superhard filler, further refining the mixture. The outer shell 51 has a discharge port, and a needle valve is installed on the discharge port to precisely control the flow rate of the polyurethane.

[0053] like Figure 12As shown, the moving mechanism 6 includes a second support base 61, a first slide block 62, a slide block 63, a second slide block 64, and a control unit 65. The second support base 61 is fixedly connected to the base 1. The first slide block 62 is slidably connected to the second support base 61. The slide block 63 is slidably connected to the first slide block 62. The second slide block 64 is slidably connected to the slide block 63. The second slide block 64 is fixedly connected to the outer shell 51. The control unit 65 is fixedly connected to the second support base 61. The control unit 65 is connected to the first slide block 62. The control unit 65 is connected to the slide block 63. The control unit 65 is connected to the second slide block 64.

[0054] The discharge mechanism 5 can move laterally by sliding the first slide block 62 and the second support base 61. The discharge mechanism 5 can move longitudinally by sliding the slide base 63 and the first slide block 62. The discharge mechanism 5 can move up and down by sliding the second slide block 64 and the slide base 63. The control unit 65 automates the movement of the discharge mechanism 5, reducing labor costs.

[0055] like Figure 12 As shown, the control unit 65 includes a fourth motor 651, a first lead screw 652, a first fixing block 653, a fifth motor 654, a second lead screw 655, a second fixing block 656, a sixth motor 657, a third lead screw 658, and a third fixing block 659. The fourth motor 651 is fixedly connected to the second support base 61. The first lead screw 652 is rotatably connected to the first fixing block 653. The output end of the fourth motor 651 is fixedly connected to the first lead screw 652. The first fixing block 653 is fixedly connected to the second support base 61. The fourth motor 651 is fixedly connected to the first slide block 62. The first lead screw 652 and the first slide block 659 are also fixedly connected. 2. Transmission connection: No. 2 lead screw 655 and No. 2 fixed block 656 are rotatably connected; No. 5 motor 654 output end is fixedly connected to No. 2 lead screw 655; No. 2 fixed block 656 is fixedly connected to No. 1 slide block 62; No. 5 motor 654 is fixedly connected to No. 1 slide block 62; No. 2 lead screw 655 and slide seat 63 are transmission connected; No. 6 motor 657 and slide seat 63 are fixedly connected; No. 3 lead screw 658 and No. 3 fixed block 659 are rotatably connected; No. 6 motor 657 output end is fixedly connected to No. 3 lead screw 658; No. 3 fixed block 659 and slide seat 63 are fixedly connected; No. 3 lead screw 658 and No. 2 slide block 64 are transmission connected.

[0056] A through hole with an internal thread is provided in the first slide 62, which engages with the external thread of the first lead screw 652, thus connecting the first lead screw 652 and the first slide 62. Driven by the fourth motor 651, the first lead screw 652 rotates, causing the first slide 62 to move along the first lead screw 652, thereby enabling it to move laterally along the second support 61. A through hole with an internal thread is provided in the slide 63, which engages with the external thread of the second lead screw 655, thus connecting the second lead screw 655 and the slide 63. Driven by the fifth motor 654, the second lead screw 655 rotates, causing the slide 63 to move along the second lead screw 655, thereby enabling it to move laterally along the second support 61. The material discharge mechanism 5 can move longitudinally along the first slide 62. The second slide 64 has a through hole with an internal thread, which meshes with the external thread of the third lead screw 658, thus connecting the third lead screw 658 and the second slide 64. The third lead screw 658 is driven by the sixth motor 657 to rotate, causing the second slide 64 to move on the third lead screw 658, thereby realizing the lifting and lowering movement of the second slide 64. The second slide 64 is fixedly connected to the outer shell 51, thereby controlling the lateral, longitudinal, and lifting movements of the discharge mechanism 5. The rotation of the lead screw is controlled by the motor, realizing the automation of the movement of the discharge mechanism 5, thereby achieving automatic pouring at different pouring points and reducing labor costs.

[0057] Working principle: The stored polyurethane raw materials are pumped from inside the raw material tank 2 to the mixing tank 32 via pipeline. The superhard filler is poured into the feed funnel 46. The second motor 41 drives the second transmission rod 45 to rotate, which in turn drives the spiral blades 44 to rotate. This causes the superhard filler to rise within the conveying pipe 43, and after reaching the top of the spiral blades 44, it falls into the discharge pipe 47. It then enters the first mixing tank 321 through the feed inlet 323 via the pipeline. The first motor 34 drives the first transmission rod 35 to rotate, thus... Agitator 36, agitator 37, and agitator 38 rotate. The rotation of agitator 36 generates centrifugal force and axial thrust in the polyurethane stock solution, while the agitator blade 362 generates shear force on the polyurethane, causing the superhard filler to disperse rapidly into the polyurethane. The rotation of agitator 37 generates centrifugal force and axial thrust, causing the polyurethane stock solution and superhard filler to mix in the mixing tank 321. The blades of agitator 37 adhere to the inner wall of the mixing tank. This allows the impeller blades to scrape against the inner wall of the mixing tank, preventing the raw liquid from forming scale on the inner wall. It also causes the liquid near the inner wall to flow at high speed, reducing the deposition of raw liquid on the wall surface and directing the raw liquid towards the first drive rod 35, avoiding dead zones in the mixing. The guide block 373 guides the liquid flow within the first mixing tank 321. Through the limiting groove 3721 and the second locking block 375, the guide block 373 rotates at a certain angle under the thrust of the liquid, further guiding the liquid through the shortest path of the agitator. The mixing paddle reduces the resistance of the liquid to the mixing paddle. The radial thrust generated by the third mixing paddle 38 causes the liquid to flow up and down, preventing the polyurethane raw material from settling. The pressure pump causes the initially mixed polyurethane raw material to flow from the outlet 324 through the pipeline to the second mixing tank 511. The fourth mixing paddle 55 and the fifth mixing paddle 56 further mix and refine the polyurethane raw material. The motor drives the lead screw to rotate, enabling the first slide 62, the slide seat 63 and the second slide 64 to move laterally, longitudinally and vertically.

[0058] Finally, it should be noted that the above descriptions are merely preferred embodiments of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A polyurethane casting apparatus with added superhard filler, characterized in that: The casting device includes a base (1), a raw material tank (2), a stirring mechanism (3), a feeding mechanism (4), a discharging mechanism (5), and a moving mechanism (6). The base (1) and the raw material tank (2) are fixedly connected. The raw material tank (2) and the stirring mechanism (3) are connected by a pipe. The feeding mechanism (4) and the stirring mechanism (3) are connected by a pipe. The feeding mechanism (4) and the base (1) are fixedly connected. The discharging mechanism (5) and the stirring mechanism (3) are connected by a pipe. The moving mechanism (6) and the base (1) are fixedly connected. The discharging mechanism (5) and the moving mechanism (6) are fixedly connected. The stirring mechanism (3) includes a first support base (31), a stirring tank (32), a first machine base (33), a first motor (34), a first transmission rod (35), a first stirring paddle (36), a second stirring paddle (37), a third stirring paddle (38), and a heating tube (39). The first support base (31) is fixedly connected to the base (1), the stirring tank (32) is fixedly connected to the first support base (31), the first machine base (33) is fixedly connected to the stirring tank (32), the first motor (34) is fixedly connected to the first machine base (33), and the output end of the first motor (34) is fixedly connected to the first transmission rod (35). The stirring tank (32) is provided with a first stirring trough (321), and the first stirring paddle (36) is placed in the first stirring trough (321). Inside the mixing tank (32), the first stirring paddle (36) and the first transmission rod (35) are connected in a transmission connection. The second stirring paddle (37) is placed inside the first mixing tank (321). The second stirring paddle (37) and the first transmission rod (35) are connected in a transmission connection. The third stirring paddle (38) is placed inside the first mixing tank (321). The third stirring paddle (38) and the first transmission rod (35) are connected in a transmission connection. The mixing tank (32) is provided with an installation groove (322). The heating tube (39) is placed inside the installation groove (322). The mixing tank (32) is provided with several feed inlets (323). The raw material tank (2) and the feed inlets (323) are connected by pipes. The mixing tank (32) is provided with an output port (324). The discharge mechanism (5) and the output port (324) are connected by pipes. The second stirring paddle (37) includes a second bushing (371), a second stirring blade (372), a guide block (373), a connecting rod (374), and a second locking block (375). The second bushing (371) is connected to the first transmission rod (35) for transmission. The second stirring blade (372) is fixedly connected to the second bushing (371). The connecting rod (374) is rotatably connected to the second stirring blade (372). The second locking block (375) is fixedly connected to the connecting rod (374). The guide block (373) is slidably connected to the second stirring blade (372). The second stirring blade (372) is provided with a limiting groove (3721). The second locking block (375) is placed in the limiting groove (3721). The second stirring blade (372) is attached to the inner wall of the stirring tank, and the second locking block (375) rotates in the limiting groove (3721), so that the guide block (373) connected to the connecting rod (374) can rotate in a certain direction with the liquid flow.

2. The polyurethane casting device with added superhard filler according to claim 1, characterized in that: The first stirring paddle (36) includes a first bushing (361), a first stirring blade (362), a first spring (363), and a first locking block (364). The first bushing (361) is provided with a rotating groove (3611), which is slidably connected to the first transmission rod (35). The first stirring blade (362) is fixedly connected to the first bushing (361). The first bushing (361) is provided with a sliding groove (3612), and the first spring (363) is placed in the sliding groove (3612). The first locking block (364) is fixedly connected to the first spring (363). The first transmission rod (35) is provided with an L-shaped locking block (351), and the first locking block (364) is provided with a groove (3641). The groove (3641) and the L-shaped locking block (351) cooperate with each other.

3. The polyurethane casting device with added superhard filler according to claim 1, characterized in that: The feeding mechanism (4) includes a second motor (41), a second base (42), a conveying pipe (43), a spiral blade (44), a second transmission rod (45), a feeding funnel (46), and a discharge pipe (47). The conveying pipe (43) is fixedly connected to the base (1), the second base (42) is fixedly connected to the conveying pipe (43), the second motor (41) is fixedly connected to the second base (42), the output end of the second motor (41) is fixedly connected to the second transmission rod (45), the conveying pipe (43) is provided with a conveying groove, the spiral blade (44) is placed in the conveying groove, the spiral blade (44) is fixedly connected to the second transmission rod (45), the conveying pipe (43) is pipe-connected to the feeding funnel (46), the discharge pipe (47) is fixedly connected to the conveying pipe (43), and the discharge pipe (47) is pipe-connected to the inlet (323).

4. The polyurethane casting apparatus with added superhard filler according to claim 1, characterized in that: The discharge mechanism (5) includes a housing (51), a third base (52), a third motor (53), a third transmission rod (54), a fourth stirring paddle (55), and a fifth stirring paddle (56). The housing (51) and the moving mechanism (6) are fixedly connected. The third base (52) and the housing (51) are fixedly connected. The third motor (53) and the third base (52) are fixedly connected. The output end of the third motor (53) and the third transmission rod (54) are fixedly connected. The third transmission rod (54) and the third transmission rod (56) are fixedly connected. The outer shell (51) is rotatably connected. The outer shell (51) is provided with a second stirring tank (511). The fourth stirring paddle (55) is placed in the second stirring tank (511). The third transmission rod (54) and the fourth stirring paddle (55) are connected in a transmission manner. The fifth stirring paddle (56) is placed in the second stirring tank (511). The third transmission rod (54) and the fifth stirring paddle (56) are connected in a transmission manner. The outer shell (51) is provided with a discharge port. The second stirring tank (511) and the output port (324) are connected by a pipe.

5. A polyurethane casting apparatus with added superhard filler according to claim 4, characterized in that: The moving mechanism (6) includes a second support base (61), a first slide block (62), a slide block (63), a second slide block (64), and a control unit (65). The second support base (61) is fixedly connected to the base (1). The first slide block (62) is slidably connected to the second support base (61). The slide block (63) is slidably connected to the first slide block (62). The second slide block (64) is slidably connected to the slide block (63). The second slide block (64) is fixedly connected to the outer shell (51). The control unit (65) is fixedly connected to the second support base (61). The control unit (65) is connected to the first slide block (62). The control unit (65) is connected to the slide block (63). The control unit (65) is connected to the second slide block (64).

6. A polyurethane casting apparatus with added superhard filler according to claim 5, characterized in that: The control unit (65) includes a fourth motor (651), a first lead screw (652), a first fixing block (653), a fifth motor (654), a second lead screw (655), a second fixing block (656), a sixth motor (657), a third lead screw (658), and a third fixing block (659). The fourth motor (651) is fixedly connected to the second support base (61), the first lead screw (652) is rotatably connected to the first fixing block (653), the output end of the fourth motor (651) is fixedly connected to the first lead screw (652), the first fixing block (653) is fixedly connected to the second support base (61), the first lead screw (652) is drivenly connected to the first slide block (62), and the fifth motor (654) is driven by the first slide block (656). 4) It is fixedly connected to the first slide (62), the second lead screw (655) and the second fixing block (656) are rotatably connected, the output end of the fifth motor (654) is fixedly connected to the second lead screw (655), the second fixing block (656) and the first slide (62) are fixedly connected, the second lead screw (655) and the slide seat (63) are drivenly connected, the sixth motor (657) and the slide seat (63) are fixedly connected, the third lead screw (658) and the third fixing block (659) are rotatably connected, the output end of the sixth motor (657) and the third lead screw (658) are fixedly connected, the third fixing block (659) and the slide seat (63) are fixedly connected, and the third lead screw (658) and the second slide (64) are drivenly connected.

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