Casting machine for producing high polymer material polyurethane

Abstract

The invention belongs to the related technical field of pouring machines, and particularly discloses a pouring machine for high polymer material polyurethane production, which comprises a base, a mixing bin, a heating bin, a pouring machine head, a frame rod and a material tank, an electric control box is arranged on the upper surface of the base, and the material tank is mounted in the mixing bin; the mixing bin is installed on the upper surface of the base and located at the rear end of the electric control box, the rear end of the interior of the material tank communicates with the heating bin through an arranged conveying assembly, the heating bin is located on the upper surface of the base and close to one side of the electric control box, and a bottom box is arranged on the upper surface of the base and close to one side of the heating bin; a coloring tank is arranged above the bottom box, an arc-surface gear ring is arranged on the upper portion of the interior of the coloring tank, and a rotating shaft is rotationally arranged in the coloring tank; the industrial problem of color paste dispersion in the high-viscosity elastomer is solved, and a key technical support is provided for high-quality production of precise polyurethane products.

Description

Technical Field

[0001] The present invention belongs to the technical field related to pouring machines, and specifically discloses a pouring machine for the production of polyurethane, a polymer material. Background Art

[0002] A polyurethane pouring machine is a device used for multi-mode continuous production of rigid and semi-rigid polyurethane products and polyester elastomer products. Polyurethane (PU), as a high-performance polymer material, is widely used in fields such as automobile manufacturing, building insulation, furniture, and aerospace. During its production process, the pouring process is the core link determining product quality and production efficiency. When traditional polyurethane pouring machines meet diversified production requirements, the following technical bottlenecks gradually emerge:

[0003] The fluidity of high-viscosity elastomers is poor, and the addition amount of color paste is usually only 0.5%-3% of the main material. Traditional static mixers or short-range dynamic mixing heads (mixing path length < 150 mm) cannot provide sufficient residence time, resulting in relatively wide color spots or stripes on the surface of the product, which is particularly obvious in transparent elastomers and easily causes defective products. In addition, when adding color at the mixing head, there is an acute-angle structure inside, which causes the local flow rate to slow down, and the color paste is prone to accumulate into color clusters. Due to insufficient shear force, the color paste agglomerates cannot be effectively broken, so it needs to be improved. Summary of the Invention

[0004] The purpose of the present invention is to solve the problems existing in the background art, and a pouring machine for the production of polyurethane, a polymer material, is proposed, including a base, a mixing bin, a heating bin, a pouring head, a support rod, and a material tank. An electrical control box is arranged on the upper surface of the base. A material tank is installed inside the mixing bin, and the mixing bin is installed on the upper surface of the base and behind the electrical control box. The rear end inside the material tank is connected to the heating bin through a set conveying component. The heating bin is located on the upper surface of the base and close to one side of the electrical control box. A bottom box is arranged on the upper surface of the base and close to one side of the heating bin. A color addition tank is arranged above the bottom box. An arc-shaped gear ring is arranged above the inside of the color addition tank. A rotating shaft is rotatably arranged inside the color addition tank. A ring rod is connected to the outside of the rotating shaft through a set fixing part. A color cutting mechanism meshing with the arc-shaped gear ring is arranged inside the ring rod.

[0005] Preferably, the conveying assembly includes a first material pump. The suction end of the first material pump penetrates through the inside of the mixing bin and extends into the inside of the material tank. One end of the first material pump away from the material tank is connected to the inside of the heating bin through a connected conveying pipe. Above the inside of the heating bin, there is a second material pump. The suction end of the second material pump extends to the lower part inside the heating bin. One end of the second material pump away from the heating bin is connected to the inside of the color adding tank through a connected guide pipe. Above the inside of the material tank, there is a coupling drive motor. Outside the coupling drive motor, there is a fixing frame, and the fixing frame is fixed above the mixing bin.

[0006] Preferably, the fixing member includes a triangular rod. The ring rod is sleeved outside the triangular rod, and the bottom of the triangular rod is arranged at the upper end of the rotating shaft.

[0007] Preferably, above the inner wall of the color adding tank, mounting blocks are installed equidistantly along the circumference. A ring pipe is jointly installed inside multiple groups of the mounting blocks. Sprayers are installed equidistantly along the circumference inside the ring pipe. One end inside the ring pipe is connected to a high-pressure water pipe. Below one end of the high-pressure water pipe, a water pump is connected. The water pump is fixedly arranged outside the bottom box.

[0008] Preferably, the pulp cutting mechanism includes U-shaped frames installed equidistantly along the circumference on the inner wall of the ring rod. A guiding frame is inclinedly arranged inside the U-shaped frame. Multiple cutting holes are opened on both outer walls of the guiding frame. Multiple cutting slices are arranged on both sides of the outer wall of the guiding frame, and the lengths of the multiple cutting slices increase from bottom to top. A rotating mechanism is arranged inside the guiding frame.

[0009] Preferably, the rotating mechanism includes a connecting shaft rotatably arranged inside the guiding frame. Multiple groups of dispersing plates are installed below the outside of the connecting shaft. A gear is arranged above the outside of the connecting shaft, and the gear is meshed and connected with the arc-shaped toothed ring.

[0010] Preferably, inside the color adding tank and below the arc-shaped toothed ring, there is a treatment hopper. A material opening is arranged in the middle of the treatment hopper. Above the material opening and on the outside of the rotating shaft, there is a fixing plate. Arc-shaped guiding pieces are arranged equidistantly along the circumference at the lower end of the fixing plate, and scraping pieces extend from the bottom of the lower end of the arc-shaped guiding pieces.

[0011] Preferably, inside the color adding tank and near the lower part of the scraping piece, there is a color mixing hopper. The outer edge of the scraping piece is slidably attached to the inner wall of the color mixing hopper. A discharge pipe is connected to the lower part inside the color mixing hopper. A solenoid valve is arranged on one side inside the discharge pipe. The lower end of the rotating shaft is fixedly provided with a motor, and the motor is installed inside the bottom box.

[0012] Preferably, a sewage discharge pipe is connected and installed below the interior of the color adding tank. On one side of the interior of the color adding tank and away from the sewage discharge pipe, a color adding pipe is connected and installed through a connected metering and conveying pump. One end of the color adding pipe away from the color adding tank is connected and installed with a dispensing, conveying and metering mechanism. The support rod is arranged at the front end of the outer wall of the heating chamber. The pouring head is arranged at the front end inside the support rod. The dispensing, conveying and metering mechanism is arranged above the rear end of the support rod. The feeding port of the dispensing, conveying and metering mechanism is communicated with the feeding chamber of the pouring head. A feeding pipe is connected and installed above the interior of the color adding tank.

[0013] Compared with the prior art, the present invention has the following beneficial effects:

[0014] By arranging an independent color adding tank above the bottom box, the process can be reduced and relieved. The color paste is sliced by the slicing mechanism inside the color adding tank, so that the color paste can be efficiently mixed with the polyurethane raw material.

[0015] When the ring rod rotates with the rotating shaft, the slices on the inner wall of the U-shaped frame and the diversion frame form a multi-angle shear surface to cut the color paste in multiple layers (the slice length is designed to increase), forming a gradient shear path, forcing the color paste agglomerates to be broken step by step. By meshing the gear outside the coupling shaft with the arc-shaped gear, the coupling shaft is promoted to drive multiple groups of dispersing plates outside to rotate, breaking the color paste agglomerates and improving the mixing uniformity. In addition, cutting holes are provided on both sides of the outer wall of the diversion frame. During the rotation of the diversion frame, the polyurethane raw material and the color paste are penetrated inside, reducing the problem of color paste agglomeration.

[0016] When the polyurethane raw material is added, it will contact the outer surface of the diversion frame. When discharging, a spiral channel is formed by multiple groups of arc-shaped diversion plates and scraping plates at the material outlet, which can increase the residence time of the material rotation and cutting. During the high-speed rotation process, the full diffusion and mixing of the polyurethane material and the color paste are ensured, completely eliminating the defects of color spots and color streaks. The scraping plate can also perform turbulent flow mixing and scraping in the treatment hopper.

[0017] Through the arranged annular pipe, water pump, high-pressure water pipe and nozzle, the all-round covering cleaning is realized above the interior of the color adding tank, shortening the self-cleaning time during the traditional material processing.

[0018] Through the above structure, the construction of a gradient shear environment, the regulation of the flow path residence and the in-depth integration of the online cleaning technology are realized, overcoming the industry problems of uneven dispersion and low efficiency in the high-viscosity polyurethane coloring process, and providing reliable equipment support for the precision coloring of high-end polyurethane products. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0020] Figure 2 It is another angle schematic diagram of the overall connection structure of the present invention;

[0021] Figure 3 Schematic diagram of the connection structure between the first material pump and the heating bin of the present invention;

[0022] Figure 4 Schematic diagram of the connection structure of the inner part of the color adding tank of the present invention;

[0023] Figure 5 Schematic diagram of the connection structure among the ring rod, the treatment hopper, and the mixing hopper of the present invention;

[0024] Figure 6 Schematic diagram of the connection structure between the arc-shaped gear ring and the gear of the present invention;

[0025] Figure 7 Schematic diagram of the connection structure among the annular pipe, the water pump, and the nozzle of the present invention;

[0026] Figure 8 Schematic diagram of the connection structure between the material port and the arc-shaped deflector of the present invention;

[0027] Figure 9 Schematic diagram of the connection structure between the arc-shaped deflector and the scraper of the present invention.

[0028] In the figure: 1, base; 2, electrical control box; 3, mixing bin; 4, first material pump; 5, heating bin; 6, casting head; 7, support rod; 8, coupling drive; 9, fixing frame; 10, material tank; 11, conveying pipe; 12, water pump; 13, color adding tank; 14, sewage pipe; 15, color adding pipe; 16, bottom box; 17, high-pressure water pipe; 18, material guiding pipe; 19, second material pump; 20, feeding pipe; 21, color mixing hopper; 22, annular pipe; 23, treatment hopper; 24, rotating shaft; 25, nozzle; 26, mounting block; 27, ring rod; 28, triangular rod; 29, scraper; 30, discharge pipe; 31, solenoid valve; 32, motor; 33, U-shaped frame; 34, arc-shaped gear ring; 35, coupling shaft; 36, gear; 37, dispersing plate; 38, deflector frame; 39, slicing; 40, cutting hole; 41, arc-shaped deflector; 42, fixing plate; 43, metering conveying pump; 44, dispensing conveying metering mechanism. Detailed implementation manners

[0029] In order to be able to more clearly understand the above-mentioned objects, features, and advantages of the present invention, the present invention will be further described in detail below in conjunction with the accompanying drawings and specific implementation manners.

[0030] 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 present invention is not limited by the specific embodiments disclosed below.

[0031] Such as Figures 1-9A casting machine for producing a polymer material polyurethane as shown, including a base 1, a mixing bin 3, a heating bin 5, a casting head 6, a support rod 7, and a material tank 10. An electrical control box 2 is arranged on the upper surface of the base 1. Inside the mixing bin 3, a material tank 10 is installed, and the mixing bin 3 is installed on the upper surface of the base 1 and located at the rear end of the electrical control box 2. The rear end inside the material tank 10 is connected to the heating bin 5 through a set conveying assembly. The heating bin 5 is located on the upper surface of the base 1 and close to one side of the electrical control box 2. A bottom box 16 is arranged on the upper surface of the base 1 and close to one side of the heating bin 5. An additive tank 13 is arranged above the bottom box 16. An arc-shaped gear ring 34 is arranged above the inside of the additive tank 13. A rotating shaft 24 is rotatably arranged inside the additive tank 13. Above the outside of the rotating shaft 24, a ring rod 27 is connected through a set fixing part. Inside the ring rod 27, a pulp cutting mechanism meshing with the arc-shaped gear ring 34 is arranged. The suction end of the first material pump 4 penetrates inside the mixing bin 3 and extends into the material tank 10. One end of the first material pump 4 away from the material tank 10 is connected to the inside of the heating bin 5 through a connected conveying pipe 11. Above the inside of the heating bin 5, a second material pump 19 is arranged. The suction end of the second material pump 19 extends to the lower part inside the heating bin 5. One end of the second material pump 19 away from the heating bin 5 is connected to the inside of the additive tank 13 through a connected guiding pipe 18. Above the inside of the material tank 10, a coupling drive motor 8 is arranged. Outside the coupling drive motor 8, a fixing frame 9 is arranged, and the fixing frame 9 is fixed above the mixing bin 3;

[0032] The electrical control box 2 is connected to an external integrated PLC control system to control and monitor the electrical components on the device, realizing the automatic control of the casting process;

[0033] An electric heating pipe and a temperature control sensor are arranged outside the heating bin 5, which can accurately control the temperature;

[0034] The coupling drive motor 8 set is composed of a coupling, a total control motor, and a stirrer. Driving the built-in stirrer to rotate can realize the premixing of raw materials and ensure the homogenization of raw materials. The above are all prior arts and will not be elaborated too much;

[0035] Through the suction of the first material pump 4, the mixing bin 3 can be conveyed into the heating bin 5. Then, the polyurethane is heated and injected into the additive tank 13 through the second material pump 19 and the guiding pipe 18.

[0036] The fixing part includes a triangular rod 28. The ring rod 27 is sleeved outside the triangular rod 28. The bottom of the triangular rod 28 is arranged at the upper end of the rotating shaft 24. Under the connection of the triangular rod 28, the rotating shaft 24 can drive the ring rod 27 to rotate.

[0037] Above the inner wall of the color adding tank 13, mounting blocks 26 are installed at equal circumferential distances. Inside multiple groups of mounting blocks 26, a ring pipe 22 is jointly installed. Inside the ring pipe 22, spray nozzles 25 are installed at equal circumferential distances. One end inside the ring pipe 22 is connected and installed with a high-pressure water pipe 17. Below one end of the high-pressure water pipe 17, a water pump 12 is connected and installed. The water pump 12 is fixedly arranged on the outer side of the bottom box 16;

[0038] Under the connection of the mounting blocks 26, the ring pipe 22 can be stably arranged above the color adding tank 13. Through the connection of the water pump 12 with an external pipeline, clean water is suctioned into the ring pipe 22 and then sprayed out by multiple spray nozzles 25 to realize self-flushing of the internal structure of the color adding tank 13.

[0039] The pulp cutting mechanism includes U-shaped frames 33 installed at equal circumferential distances on the inner wall of the ring rod 27. Inside the U-shaped frames 33, a diversion frame 38 is inclined. On both outer walls of the diversion frame 38, multiple cutting holes 40 are opened. On both sides of the outer wall of the diversion frame 38, multiple cutting slices 39 are arranged, and the lengths of the multiple cutting slices 39 increase from bottom to top. Inside the diversion frame 38, a rotating mechanism is arranged. The rotating mechanism includes a connecting shaft 35 rotatably arranged inside the diversion frame 38. Below the outside of the connecting shaft 35, multiple groups of dispersing plates 37 are installed. Above the outside of the connecting shaft 35, a gear 36 is arranged. The gear 36 is meshed and connected with an arc-shaped toothed ring 34;

[0040] Inside the color adding tank 13 and below the arc-shaped toothed ring 34, a processing hopper 23 is arranged. In the middle of the processing hopper 23, a material port is arranged. Above the material port and outside the rotating shaft 24, a fixing plate 42 is arranged. At the lower end of the fixing plate 42, arc-shaped guiding vanes 41 are arranged at equal circumferential distances. At the bottom of the lower end of the arc-shaped guiding vanes 41, scraping blades 29 extend out;

[0041] Inside the color adding tank 13 and near the lower part of the scraping blade 29, a color mixing hopper 21 is arranged. The outer edge of the scraping blade 29 is in sliding fit with the inner wall of the color mixing hopper 21. Below the inside of the color mixing hopper 21, a discharge pipe 30 is connected and installed. On one side inside the discharge pipe 30, a solenoid valve 31 is arranged. At the lower end of the rotating shaft 24, a motor 32 is fixedly arranged. The motor 32 is installed inside the bottom box 16;

[0042] The motor 32 drives the rotating shaft 24 to rotate, driving the ring rod 27, the U-shaped frames 33 and the diversion frame 38 to rotate, forming a rotary dynamic shearing path;

[0043] The diversion frame 38 is inclined, and the slicers 39 on both sides are arranged in a gradually increasing length from bottom to top. The length increasing design enables the material to pass through the shearing areas at different positions, prompting the slicers 39 to further eliminate the agglomeration force of the color paste. When the premix and the color paste centrifugally fall along the inner wall of the treatment hopper 23, when part of the material laterally passes through the diversion frame 38 through the cutting holes 40, a diversion is formed, which can effectively break the color paste agglomerates. Moreover, the gear 36 outside the coupling shaft 35 will engage with the arc-shaped toothed ring 34 during rotation, driving the dispersion disc 37 to rotate at a high speed, realizing the centrifugal dispersion of the color paste. At the same time, the falling path of the fused color paste and premix is also extended, thereby ensuring the fusion effect of the polymer material and the color paste;

[0044] The scraping blade 29 can scrape the material inside the color mixing hopper 21, which is convenient for later discharging. The solenoid valve 31 can accurately control the flow rate of the output of the mixed material, and is linked with the casting head 6. According to the preset program, the material is injected into the mold to ensure consistent pouring volume.

[0045] A sewage discharge pipe 14 is connected and installed below the inside of the color adding tank 13. On the side of the color adding tank 13 inside and away from the sewage discharge pipe 14, a color adding pipe 15 is connected and installed through a connected metering and conveying pump 43. One end of the color adding pipe 15 away from the color adding tank 13 is connected and installed with a sub-packaging conveying and metering mechanism 44. The support rod 7 is arranged at the front end of the outer wall of the heating chamber 5, the casting head 6 is arranged at the front end inside the support rod 7, and the sub-packaging conveying and metering mechanism 44 is arranged above the rear end of the support rod 7. The feeding port of the sub-packaging conveying and metering mechanism 44 is communicated with the feeding chamber of the casting head 6. A feeding pipe 20 is connected and installed above the inside of the color adding tank 13;

[0046] The sewage discharged from the internal structure flushing of the color adding tank 13 can be drained away through the provided sewage discharge pipe 14;

[0047] The provided metering and conveying pump 43 can ensure that the flow rate of the color paste transported each time is more accurate, ensuring more stable color ratio;

[0048] The casting head 6 is equipped with a temperature control module, which can maintain a constant temperature and avoid cold material blockage;

[0049] The sub-packaging conveying and metering mechanism 44 can accurately control the metering and convey the material to the casting head 6 through multiple channels to meet the requirements of synchronous pouring of complex molds. The sub-packaging conveying and metering mechanism 44 includes structures such as a regulating valve, a meter, a plunger pump, a sub-packaging barrel, multiple pipelines, multiple one-way valves, etc., which are prior art and will not be elaborated too much.

[0050] Working principle: During use, the color paste is premixed inside the material tank 10 driven by the coupling drive machine 8 to ensure the homogenization of raw materials. Subsequently, it is transported to the inside of the heating chamber 5 through the conveying pipe 11 and the first material pump 4, melted under temperature control to reduce viscosity and improve fluidity. The polyurethane premix is added to the color adding tank 13 through the second material pump 19 and the material guiding pipe 18. The motor 32 drives the rotating shaft 24 to rotate, and the ring rod 27 drives each U-shaped frame 33 and the flow guiding frame 38 to rotate at high speed, causing the material to be centrifugally thrown upward and outward from the processing hopper 23. The material then slides downward from the upper part of the inner wall of the processing hopper 23. The gradually increasing slicers 39 outside the flow guiding frame 38 and the cutting holes 40 at various positions form a stepped shearing environment. When the material falls, it successively contacts the cutting holes 40 and slicers 39 incrementally arranged at the flow guiding frame 38, repeatedly passing through the interior of the material during the downward slide, thereby fully breaking up the color paste aggregates. Moreover, when the ring rod 27 rotates, the gear 36 above the coupling shaft 35 inside the flow guiding frame 38 will engage with the arc-shaped gear ring 34 at the lower end, driving the dispersing plate 37 on the coupling shaft 35 to rotate at high speed. Thus, during the rotation process, secondary shearing and turbulent flow are performed on the polyurethane premix and the color paste. The color paste then undergoes multiple cycles of shearing inside the flow guiding frame 38. Finally, the color paste and the polyurethane premix are highly diffused. When the material falls from the discharge port of the processing hopper 23, it contacts the outer surface of the arc-shaped flow guiding plate 41, and the material flow path changes from the current center of gravity downward to downward discharge along both arc surfaces, increasing the residence time of the material during the downward slide. When the material falls into the color mixing hopper 21, the scraper 29 can scrape the material, eliminating the dead zone of the mixing of the traditional casting head 6, and prompting the mixed material to fully fall into the lower part of the color adding tank 13 through the discharge pipe 30. Then, the metering and conveying pump 43 transports the material into the dispensing and conveying metering mechanism 44 according to the preset color paste ratio, and the casting head 6 injects the material into the mold through the dispensing and conveying metering mechanism 44;

[0051] After the material is discharged, the water pump 12 is connected to an external water pipe through the suction end, and clean water is sprayed inside the color mixing hopper 21 and the processing hopper 23 through the ring pipe 22 and the nozzle 25, thereby independently flushing the inside of the color adding tank 13, and the sewage is discharged through the sewage discharge pipe 14.

[0052] The above shows and describes the basic principle, main features and advantages of the present invention. Those skilled in the art of this industry should understand that the present invention is not limited by the above embodiments. What is described in the above embodiments and the specification is only the principle of the present invention. Without departing from the spirit and scope of the present invention, the present invention will have various changes and improvements, and these changes and improvements all fall within the scope of the present invention claimed.

Claims

1. A casting machine for producing polyurethane, a polymer material, comprising a base (1), a mixing bin (3), a heating bin (5), a casting head (6), a support rod (7), and a material tank (10), characterized in that: An electric control box (2) is arranged on the upper surface of the base (1). A material tank (10) is installed inside the mixing bin (3), and the mixing bin (3) is installed on the upper surface of the base (1) and located at the rear end of the electric control box (2). The rear end inside the material tank (10) is communicated with a heating bin (5) through a provided conveying assembly. The heating bin (5) is located on the upper surface of the base (1) and close to one side of the electric control box (2). A bottom box (16) is arranged on the upper surface of the base (1) and close to one side of the heating bin (5). A color adding tank (13) is arranged above the bottom box (16). An arc-shaped gear ring (34) is arranged above the inside of the color adding tank (13). A rotating shaft (24) is rotatably arranged inside the color adding tank (13). A ring rod (27) is connected to the upper part outside the rotating shaft (24) through a provided fixing member. A pulp cutting mechanism meshing with the arc-shaped gear ring (34) is arranged inside the ring rod (27).

2. The casting machine for producing the polymer material polyurethane according to claim 1, characterized in that: The conveying assembly includes a first material pump (4). The suction end of the first material pump (4) penetrates through the inside of the mixing bin (3) and extends into the material tank (10). One end of the first material pump (4) far from the material tank (10) is communicated with the inside of the heating bin (5) through a connected conveying pipe (11). A second material pump (19) is arranged above the inside of the heating bin (5). The suction end of the second material pump (19) extends to the lower part inside the heating bin (5). One end of the second material pump (19) far from the heating bin (5) is communicated with the inside of the color adding tank (13) through a connected guiding pipe (18). A coupling drive machine (8) is arranged above the inside of the material tank (10). A fixing frame (9) is arranged outside the coupling drive machine (8), and the fixing frame (9) is fixed above the mixing bin (3).

3. A casting machine for producing the polymer material polyurethane according to claim 1, characterized in that: The fixing member includes a triangular rod (28). The ring rod (27) is sleeved outside the triangular rod (28), and the bottom of the triangular rod (28) is arranged at the upper end of the rotating shaft (24).

4. The casting machine for producing the polymer material polyurethane according to claim 1, wherein: A plurality of mounting blocks (26) are equidistantly installed along the circumference above the inner wall of the color adding tank (13). A ring pipe (22) is jointly installed inside the plurality of mounting blocks (26). A plurality of spray heads (25) are equidistantly installed along the circumference inside the ring pipe (22). One end inside the ring pipe (22) is communicated with a high-pressure water pipe (17). One end below the high-pressure water pipe (17) is communicated with a water pump (12), and the water pump (12) is fixedly arranged outside the bottom box (16).

5. The casting machine for producing the polymer material polyurethane according to claim 1, characterized in that: The pulp cutting mechanism includes U-shaped frames (33) equidistantly installed along the circumference on the inner wall of the ring rod (27). A guiding frame (38) is inclinedly arranged inside the U-shaped frame (33). A plurality of cutting holes (40) are formed in both outer walls of the guiding frame (38). A plurality of cutting slices (39) are arranged on both sides of the outer wall of the guiding frame (38), and the lengths of the plurality of cutting slices (39) increase from bottom to top. A rotating mechanism is arranged inside the guiding frame (38).

6. The casting machine for producing the polymer material polyurethane according to claim 5, characterized in that: The rotating mechanism includes a coupling shaft (35) rotatably arranged inside the diversion frame (38). A plurality of dispersing plates (37) are installed below the outer part of the coupling shaft (35). A gear (36) is arranged above the outer part of the coupling shaft (35), and the gear (36) is meshed and connected with an arc-shaped toothed ring (34).

7. A casting machine for producing the polymer material polyurethane according to claim 6, characterized in that: A treatment hopper (23) is arranged inside the color adding tank (13) and at the lower end of the arc-shaped toothed ring (34). A material inlet is arranged in the middle of the treatment hopper (23). A fixing plate (42) is arranged outside the rotating shaft (24) and above the material inlet. Arc-shaped diversion vanes (41) are arranged at equal intervals along the circumference at the lower end of the fixing plate (42), and a scraping blade (29) extends out from the bottom of the lower end of the arc-shaped diversion vanes (41).

8. A pouring machine for producing a polymer material polyurethane according to claim 7, characterized in that: A color mixing hopper (21) is arranged inside the color adding tank (13) and near the lower part of the scraping blade (29). The outer edge of the scraping blade (29) is in sliding fit with the inner wall of the color mixing hopper (21). A discharge pipe (30) is connected and installed below the inside of the color mixing hopper (21). A solenoid valve (31) is arranged on one side inside the discharge pipe (30). A motor (32) is fixedly arranged at the lower end of the rotating shaft (24), and the motor (32) is installed inside the bottom box (16).

9. A casting machine for producing the polymer material polyurethane according to claim 1, characterized in that: A sewage discharge pipe (14) is connected and installed below the inside of the color adding tank (13). A color adding pipe (15) is connected and installed on one side of the color adding tank (13) far away from the sewage discharge pipe (14) through a connected metering and conveying pump (43). The end of the color adding pipe (15) far away from the color adding tank (13) is connected and installed with a dispensing, conveying and metering mechanism (44). The support rod (7) is arranged at the front end of the outer wall of the heating chamber (5). The casting head (6) is arranged at the front end inside the support rod (7). The dispensing, conveying and metering mechanism (44) is arranged above the rear end of the support rod (7). The feeding port of the dispensing, conveying and metering mechanism (44) is communicated with the feeding chamber of the casting head (6). A feeding pipe (20) is connected and installed above the inside of the color adding tank (13).

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