Raw material mixing equipment and method for foam material

Abstract

The invention belongs to the technical field of material mixing, and particularly relates to raw material mixing equipment for foam materials and a method thereof.The raw material mixing equipment comprises a barrel wall scraping assembly, a telescopic stirring assembly, an elastic wing material pushing assembly, a synchronous air supply assembly, a driving assembly and a rack assembly, and the barrel wall scraping assembly is arranged on the rack assembly; the telescopic stirring assembly is arranged on the elastic wing pushing assembly, the elastic wing pushing assembly is arranged on the rack assembly, and the synchronous air supply assembly and the driving assembly are arranged on the two sides of the rack assembly respectively. Through forward rotation and reverse rotation of the polygonal sliding rod, the mixing mode and the discharging mode of the device can be switched, the extending and retracting states of the telescopic plate can be changed, the position of the telescopic plate can be adjusted through the rotation speed, and therefore all-around stirring and mixing of materials in the mixing barrel are achieved.

Description

TECHNICAL FIELD

[0001] The present application belongs to the technical field of material mixing, and particularly relates to a raw material mixing device for foam material and a method thereof. BACKGROUND

[0002] After the foamed sponge and other porous materials are formed, a large number of holes and cavities are formed in the interior, which needs to be subjected to a "foaming" process, mainly divided into chemical foaming and physical foaming. Chemical foaming refers to a process in which a large number of bubbles are generated in the chemical reaction itself without the need for external gas supply. Physical foaming is to fill gas into the viscous material after mixing by means of a gas pump, and the bubbles are broken by stirring to complete the foaming.

[0003] The mixed material will adhere to the inner wall of the mixing cylinder, and before the next wave of material mixing is carried out, the inner wall needs to be scraped. In the existing scheme, manual disassembly and assembly of the stirring assembly is generally required, which is time-consuming and laborious. If an automatic cleaning and scraping structure is provided, it is relatively complex. SUMMARY

[0004] In view of the above situation, in order to overcome the defects of the prior art, the present application provides a raw material mixing device for foam material and a method thereof. The present application provides a telescopic stirring assembly. By forward rotation and reverse rotation of the polygonal slide rod, the mixing mode and the discharging mode of the device can be switched, the extension and retraction state of the telescopic plate can be changed, and the position of the telescopic plate can be adjusted by the rotation speed, so that the material in the mixing cylinder can be stirred and mixed in all directions. In addition, by designing the elastic wing, it can be determined whether the elastic wing can apply a longitudinal thrust to the material by controlling the rotation direction.

[0005] The technical scheme adopted by the present application is as follows: the present application provides a raw material mixing device for foam material, which comprises a cylinder wall scraping assembly, a telescopic stirring assembly, an elastic wing pushing assembly, a synchronous gas supply assembly, a driving assembly and a rack assembly. The cylinder wall scraping assembly is arranged on the rack assembly. The telescopic stirring assembly is arranged on the elastic wing pushing assembly. The elastic wing pushing assembly is arranged on the rack assembly. The synchronous gas supply assembly and the driving assembly are arranged on the two sides of the rack assembly. The telescopic stirring assembly comprises a polygonal slide rod, a tension spring and a rotary support frame. The elastic wing pushing assembly comprises a material pumping rotary part. The cylinder wall scraping assembly comprises a mixing cylinder. The bottom of the mixing cylinder is provided with a discharge port. The material pumping rotary part is rotationally arranged below the discharge port. The polygonal slide rod is slidingly arranged in the material pumping rotary part and rotates with the material pumping rotary part. The tension spring is sleeved on the polygonal slide rod. The rotary support frame is fixedly connected to the top of the polygonal slide rod.

[0006] Further, the telescopic stirring assembly further comprises a telescopic plate and an elastic element, the telescopic plate is telescopically arranged in the rotating support frame, a plurality of groups of the telescopic plate are annularly and uniformly arranged, the telescopic plate is in an inclined state, and an oblique part is arranged at the end of the telescopic plate.

[0007] By changing the rotating direction of the telescopic plate, the telescopic stirring assembly can be switched between the two modes of extension and retraction, and due to the inclination angle of the telescopic plate, the height of the telescopic plate in the mixing cylinder can also be adjusted by changing the rotating speed of the telescopic stirring assembly, thereby achieving the technical effect of stirring different height positions.

[0008] Further, the cylinder wall scraping assembly further comprises a scraping piston, the rack assembly comprises a rack base, the mixing cylinder is arranged on the rack base, the scraping piston is slidingly arranged in the mixing cylinder, the conical surface part of the scraping piston is made of an elastic material, and the conical surface angle of the scraping piston is greater than the conical surface angle of the mixing cylinder.

[0009] The top of the scraping piston is provided with a one-way exhaust valve, when the material in the mixing cylinder is discharged from the discharge port, the scraping piston will descend under the action of negative pressure, thereby scraping the inner wall of the mixing cylinder; since the conical surface angle of the scraping piston is greater than the conical surface angle of the mixing cylinder, when the outer ring of the scraping piston first contacts the bottom of the mixing cylinder, the material adhered to the bottom of the mixing cylinder can be extruded in the process of gradually increasing the contact area.

[0010] Further, the elastic wing pushing assembly further comprises an impeller part and an elastic wing, the impeller part is fixedly connected to the rotating part of the pumping pump, the tension spring is arranged between the rotating support frame and the impeller part, a plurality of fixed blades are annularly and uniformly arranged on the impeller part, the elastic wing is rotatably arranged on the fixed blade, and the elastic wing is inclined upward in a free state.

[0011] During the stirring process, the elastic wing is located behind the fixed blade, so the elastic wing is in a horizontal state and does not exert a longitudinal pushing force on the material; during the discharging process, the elastic wing is located in front of the fixed blade, so the elastic wing is in an inclined state and can exert a longitudinal pushing force on the material.

[0012] As preferred, the elastic wing pushing assembly further comprises a pumping pump fixing part, the rack assembly further comprises a pump support frame, the pump support frame is fixedly connected to the rack base, the pumping pump fixing part is fixedly connected to the pump support frame, and the rotating part of the pumping pump is rotatably arranged on the pumping pump fixing part.

[0013] A fan-shaped baffle is arranged between the pumping pump fixing part and the rotating part of the pumping pump, the baffle is closed during the stirring process to prevent the material from leaking through the pumping pump, and the baffle is opened during the discharging process to allow the material to be discharged.

[0014] Further, the synchronous air supply assembly comprises a ring-shaped air cavity, a high-pressure nozzle, an air pump and an air supply pipe, the ring-shaped air cavity is fixed to the bottom of the fixed part of the material pumping pump, hollow rods are arranged on the ring-shaped air cavity in a ring-shaped and uniform manner, the high-pressure nozzle is arranged in the hollow rods, the air pump is arranged on the rack base, and the air supply pipe is arranged between the air pump and the ring-shaped air cavity.

[0015] The air pump is also driven by the driving motor, so that the air supply speed of the air pump and the material discharging speed of the material pumping pump are automatically kept corresponding in the foaming process.

[0016] Further, the driving assembly comprises a driving motor, a driving gear, a driven gear ring and a driven gear, the driving motor is arranged on the rack base, the driving gear is arranged on the output shaft of the driving motor, the driven gear ring is arranged outside the rotating part of the material pumping pump, and the driven gear ring and the driving gear are in meshing transmission.

[0017] As preferred, the driven gear is arranged on the input shaft of the air pump, and the driven gear ring and the driven gear are in meshing transmission.

[0018] The elastic element is arranged between the telescopic plate and the rotating support frame.

[0019] The raw materials that need to be stirred and mixed are supplied into the mixing cylinder, then the scraping piston is placed on the top of the mixing cylinder and is pressed down to a height that is flush with the surface of the materials in the mixing cylinder, in the process of pressing down the scraping piston, the air below is discharged through the one-way exhaust valve on the scraping piston; Step two: start the driving motor, rotate the rotating part of the material pumping pump through the driving gear and the driven gear ring, when the rotating part of the material pumping pump rotates, on one hand, it will rotate the impeller part, at this time, the elastic flaps are located behind the fixed flaps, and the elastic flaps change into the same horizontal angle as the fixed flaps under the resistance of the materials, at this time, the elastic flaps do not exert longitudinal thrust on the materials; On the other hand, the rotating part of the material pumping pump will also rotate the polygonal slide rod, when the rotating support frame rotates, the baffle between the fixed part and the rotating part of the material pumping pump is closed, at this time, the thrust of the materials on the obliquely tilted part is outward, and the telescopic plate will be stretched out, since the telescopic plate has an inclination angle, therefore, the telescopic stirring assembly has a tendency to move upward when it rotates, and this lifting force is in opposition to the tension spring; Step three: after the telescopic plate is stretched out, it can mix and stir the materials in the mixing cylinder through its own rotation and the rotation of the obliquely tilted part, and changing the rotation speed of the rotating support frame can also control the height of the telescopic plate, so as to realize the stirring and mixing of the materials at different depths in the mixing cylinder; Step four: reverse rotation drive motor, due to the polygon slide rod rotation direction is opposite, so the telescopic plate will be under the material to the oblique wing section of the reverse thrust retract, while the baffle between the pump fixed part and the pump rotating part open, elastic wing piece due to the front of the fixed blade, so the inclined state, can exert a longitudinal force on the material, so that the mixing cylinder mixed material through the pump discharge; Step five: in the process of material discharge, scraping piston under the action of negative pressure along with the material down, can be scraped on the side wall of the mixing cylinder material, due to the taper angle of the scraping piston is greater than the taper angle of the mixing cylinder, so the outer circle of the scraping piston first contact with the bottom of the mixing cylinder, in the process of gradually increasing the contact area, can be extruded on the bottom of the mixing cylinder material; scraping piston after contact with the rotating support frame can overcome the elastic force of the tension spring to press the rotating support frame to the discharge port; Step six: at the same time, the air pump to the annular air cavity into the air, and through the high pressure nozzle, gas through high pressure nozzle will be divided into small bubbles, so as to complete the physical foaming in the air supply step.

[0020] The beneficial effects of the application with the above structure are as follows: (1) by changing the rotation direction of the telescopic plate, the telescopic stirring assembly can be switched between the two modes of extension and retraction, due to the inclination angle of the telescopic plate, the height of the telescopic plate in the mixing cylinder can be adjusted by changing the speed of the telescopic stirring assembly, so as to realize the technical effect of stirring different height parts.

[0021] (2) the top of the scraping piston is provided with a one-way exhaust valve, when the material in the mixing cylinder is discharged from the discharge port, the scraping piston will descend along with the material under the action of negative pressure, so as to scrape the inner wall of the mixing cylinder; since the taper angle of the scraping piston is greater than that of the mixing cylinder, the outer circle of the scraping piston first contacts the bottom of the mixing cylinder, and in the process of gradually increasing the contact area, the material adhered to the bottom of the mixing cylinder can be extruded.

[0022] (3) in the stirring process, the elastic wing piece is located behind the fixed blade, so the elastic wing piece is in a horizontal state and does not exert a longitudinal force on the material; in the discharging process, the elastic wing piece is located in front of the fixed blade, so the elastic wing piece is in an inclined state and can exert a longitudinal force on the material.

[0023] (4) a sector baffle is arranged between the pump fixed part and the pump rotating part, the baffle is closed in the stirring process to prevent material from leaking through the pump, and the baffle is opened in the discharging process to allow the material to be discharged.

[0024] (5) The air pump is also driven by a drive motor, so that the air supply speed of the air pump and the discharge speed of the material pump are automatically kept in correspondence during the foaming process. Attached Figure Description

[0025] Figure 1 This is a perspective view of a raw material mixing device for foam materials proposed in this invention; Figure 2 This is a front view of a raw material mixing device for foam materials proposed in this invention; Figure 3 This is a top view of a raw material mixing device for foam materials proposed in this invention; Figure 4 for Figure 2 A cross-sectional view along the cutting line AA; Figure 5 This is a half-sectional structural diagram of a raw material mixing device for foam materials proposed in this invention; Figure 6 This is an exploded structural diagram of a raw material mixing device for foam materials proposed in this invention; Figure 7 for Figure 4 A magnified view of a section at point I; Figure 8 for Figure 5 Enlarged view of a section at point II; Figure 9 for Figure 6 Enlarged view of a section at point III; Figure 10 This is a schematic diagram showing the swing angle of the elastic airfoil; Figure 11 A schematic diagram of the sector-shaped baffle between the fixed part and the rotating part of the pump.

[0026] The components include: 1. Cylinder wall scraping assembly; 2. Telescopic mixing assembly; 3. Elastic wing pushing assembly; 4. Synchronous air supply assembly; 5. Drive assembly; 6. Frame assembly; 11. Mixing cylinder; 12. Scraping piston; 21. Polygonal slide bar; 22. Tension spring; 23. Rotating support frame; 24. Telescopic plate; 25. Elastic element; 31. Impeller; 32. Elastic wing; 33. Pump fixing part; 34. Pump rotating part; 41. Annular air chamber; 42. High-pressure nozzle; 43. Air pump; 44. Air supply pipe; 51. Drive motor; 52. Drive gear; 53. Driven gear ring; 54. Driven gear; 61. Frame base; 62. Pump support frame; 111. Discharge port; 241. Inclined section; 311. Fixed blade; 411. Hollow rod.

[0027] The accompanying drawings are included to provide a further understanding of the application, and are incorporated in and constitute a part of the specification, illustrate embodiments of the application, and are intended to provide further description of the application and are not intended to limit the application. DETAILED DESCRIPTION

[0028] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative efforts fall within the scope of the present application.

[0029] In the description of the present application, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inner", "outer" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the purpose of facilitating the description of the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application.

[0030] As shown in Figures 1-9 The present application provides a raw material mixing device for foam material and a method thereof, which comprises a cylinder wall scraping assembly 1, a telescopic stirring assembly 2, an elastic wing pushing assembly 3, a synchronous gas supply assembly 4, a driving assembly 5 and a rack assembly 6. The cylinder wall scraping assembly 1 is arranged on the rack assembly 6, the telescopic stirring assembly 2 is arranged on the elastic wing pushing assembly 3, the elastic wing pushing assembly 3 is arranged on the rack assembly 6, and the synchronous gas supply assembly 4 and the driving assembly 5 are arranged on both sides of the rack assembly 6. The telescopic stirring assembly 2 comprises a polygonal slide rod 21, a tension spring 22 and a rotating support frame 23. The elastic wing pushing assembly 3 comprises a pumping rotary part 34. The cylinder wall scraping assembly 1 comprises a mixing cylinder 11, and the bottom of the mixing cylinder 11 is provided with a discharge port 111. The pumping rotary part 34 is rotationally arranged below the discharge port 111. The polygonal slide rod 21 is slidingly arranged in the pumping rotary part 34 and rotates with the pumping rotary part 34. The tension spring 22 is sleeved on the polygonal slide rod 21. The rotating support frame 23 is fixedly connected to the top of the polygonal slide rod 21.

[0031] The telescopic stirring assembly 2 further comprises a telescopic plate 24 and an elastic element 25. The telescopic plate 24 is telescopically arranged in the rotating support frame 23. The telescopic plate 24 is annularly and uniformly arranged with a plurality of groups. The telescopic plate 24 is in an inclined state. The end of the telescopic plate 24 is provided with a slanted part 241.

[0032] By changing the rotating direction of the telescopic plate 24, the telescopic stirring assembly 2 can be switched between the two modes of extension and retraction, and due to the inclination angle of the telescopic plate 24, the height of the telescopic plate 24 in the mixing cylinder 11 can be adjusted by changing the rotating speed of the telescopic stirring assembly 2, thereby achieving the technical effect of stirring different height positions.

[0033] The cylinder wall scraping assembly 1 further comprises a scraping piston 12, the frame assembly 6 comprises a frame base 61, the mixing cylinder 11 is arranged on the frame base 61, the scraping piston 12 is slidingly arranged in the mixing cylinder 11, the conical surface part of the scraping piston 12 is made of elastic material, and the conical surface angle of the scraping piston 12 is greater than the conical surface angle of the mixing cylinder 11.

[0034] The top of the scraping piston 12 is provided with a one-way exhaust valve, when the material in the mixing cylinder 11 is discharged from the discharge port 111, the scraping piston 12 will descend under the action of negative pressure, thereby scraping the inner wall of the mixing cylinder 11; since the conical surface angle of the scraping piston 12 is greater than the conical surface angle of the mixing cylinder 11, when the outer ring of the scraping piston 12 first contacts the bottom of the mixing cylinder 11, the material adhered to the bottom of the mixing cylinder 11 can be extruded in the process of gradually increasing the contact area.

[0035] The elastic wing material pushing assembly 3 further comprises an impeller part 31 and an elastic wing 32, the impeller part 31 is fixedly connected to the material pumping pump rotating part 34, the tension spring 22 is arranged between the rotating support frame 23 and the impeller part 31, a plurality of fixed blades 311 are uniformly arranged on the impeller part 31 in a ring shape, the elastic wing 32 is rotatably arranged on the fixed blades 311, and the elastic wing 32 is inclined upward in a free state.

[0036] In the stirring process, the elastic wing 32 is located behind the fixed blades 311, so the elastic wing 32 is in a horizontal state and does not exert a longitudinal pushing force on the material; in the discharging process, the elastic wing 32 is located in front of the fixed blades 311, so the elastic wing 32 is in an inclined state and can exert a longitudinal pushing force on the material.

[0037] The elastic wing material pushing assembly 3 further comprises a material pumping pump fixed part 33, the frame assembly 6 further comprises a pump support frame 62, the pump support frame 62 is fixedly connected to the frame base 61, the material pumping pump fixed part 33 is fixedly connected to the pump support frame 62, and the material pumping pump rotating part 34 is rotatably arranged on the material pumping pump fixed part 33.

[0038] A fan-shaped baffle is arranged between the material pumping pump fixed part 33 and the material pumping pump rotating part 34, the baffle is closed in the stirring process to prevent the material from leaking out through the material pumping pump, and the baffle is opened in the discharging process to allow the material to be discharged.

[0039] The synchronous air supply assembly 4 comprises an annular air cavity 41, high-pressure nozzles 42, an air pump 43 and an air supply pipe 44. The annular air cavity 41 is fixed to the bottom of the fixed part 33 of the material pumping pump, and hollow rod portions 411 are arranged in the annular air cavity 41. The high-pressure nozzles 42 are arranged in the hollow rod portions 411. The air pump 43 is arranged on the rack base 61. The air supply pipe 44 is arranged between the air pump 43 and the annular air cavity 41.

[0040] The air pump 43 is also driven by the driving motor 51, so that the air supply speed of the air pump 43 and the material discharge speed of the material pumping pump are automatically kept corresponding in the foaming process.

[0041] The driving assembly 5 comprises a driving motor 51, a driving gear 52, a driven gear ring 53 and a driven gear 54. The driving motor 51 is arranged on the rack base 61. The driving gear 52 is arranged on the output shaft of the driving motor 51. The driven gear ring 53 is arranged outside the rotating part 34 of the material pumping pump. The driven gear ring 53 and the driving gear 52 are in meshing transmission.

[0042] The driven gear 54 is arranged on the input shaft of the air pump 43. The driven gear ring 53 and the driven gear 54 are in meshing transmission.

[0043] The elastic element 25 is arranged between the telescopic plate 24 and the rotating support frame 23 to pull back the telescopic plate 24.

[0044] As shown in Figure 10 , in the free state, the elastic flaps 32 are slightly upturned. The dashed line represents the boundary of the rotation range of the elastic flaps 32. When the elastic flaps 32 are located behind the fixed flaps 311, the elastic flaps 32 will be rotated to the state of being flush with the fixed flaps 311 under the pushing force of the material. When the elastic flaps 32 are located in front of the fixed flaps 311, the elastic flaps 32 will be rotated to the inclined state under the pushing force of the material. At this time, the elastic flaps 32 will apply a downward pushing force to the material.

[0045] As shown in Figure 11 , the fan-shaped baffle which can be opened and closed is arranged between the fixed part 33 and the rotating part 34 of the material pumping pump. The rotatable angle of the fan-shaped baffle is equal to the angle corresponding to each fan-shaped area. Therefore, by rotating the fan-shaped baffle, the opening and closing of the passage between the fixed part 33 and the rotating part 34 of the material pumping pump can be controlled. In the stirring process, the baffle is closed to avoid the material leaking out through the material pumping pump. In the material discharging process, the baffle is opened to allow the material to be discharged.

[0046] In specific use, the raw materials which need to be stirred and mixed are supplied into the mixing cylinder 11. Then, the scraping piston 12 is placed on the top of the mixing cylinder 11 and is pressed down to the height which is flush with the surface of the material in the mixing cylinder 11. In the process of pressing down the scraping piston 12, the air below is discharged through the one-way air discharge valve on the scraping piston 12.

[0047] Start the drive motor 51, through the drive gear 52 and driven gear 53 with the pump rotation part 34 rotation, pump rotation part 34 in rotation will bring along the impeller part 31 rotation, at this time the elastic fin 32 is located behind the fixed blade 311, the elastic fin 32 changes into the same horizontal angle as the fixed blade 311 under the resistance of the material, at this time the elastic fin 32 does not exert longitudinal thrust on the material; On the other hand, the pump rotation part 34 will also bring along the polygon slide rod 21 rotation, the rotating support frame 23 in rotation, the baffle between the pump fixed part 33 and the pump rotation part 34 is closed, at this time the thrust of the material to the oblique part 241 is outward, the expansion plate 24 will stretch out, because the expansion plate 24 has an angle of inclination, therefore the telescopic stirring assembly 2 has a tendency to move upward in rotation, this lifting force is in opposition to the tension spring 22.

[0048] After the expansion plate 24 stretches out, it can mix and stir the material in the mixing cylinder 11 through its own rotation and the rotation of the oblique part 241, and changing the rotation speed of the rotating support frame 23 can also control the height of the expansion plate 24, thereby realizing stirring and mixing at different depths inside the mixing cylinder 11.

[0049] Reverse rotation of the drive motor 51, because the rotation direction of the polygon slide rod 21 is opposite, therefore the expansion plate 24 will retract under the counter-thrust of the material to the oblique part 241, at the same time the baffle between the pump fixed part 33 and the pump rotation part 34 is opened, the elastic fin 32 is located in front of the fixed blade 311, therefore it is in an inclined state, and can exert longitudinal thrust on the material, thereby making the mixed material in the mixing cylinder 11 discharge through the pump; During the material discharge process, the scraping piston 12 descends under the action of negative pressure, and can scrape the material adhering to the side wall of the mixing cylinder 11, because the taper angle of the scraping piston 12 is larger than that of the mixing cylinder 11, therefore when the outer circle of the scraping piston 12 first contacts the bottom of the mixing cylinder 11, in the process of gradually increasing the contact area, it can extrude the material adhering to the bottom of the mixing cylinder 11; after contacting the rotating support frame 23, the scraping piston 12 can overcome the elastic force of the tension spring 22 to press the rotating support frame 23 into the discharge port 111.

[0050] At the same time, the air pump 43 supplies air into the annular air cavity 41, and sprays it out through the high-pressure nozzle 42, the gas is divided into small bubbles when passing through the high-pressure nozzle 42, thereby completing the air supply step in physical foaming.

[0051] There are a large number of bubbles inside the material discharged from the pump, which can be cut and broken into small bubbles through subsequent stirring actions.

[0052] It is to be understood that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting; thus the use of any

[0053] The above description of the application and its embodiments is not restrictive, and the embodiments shown in the drawings are only one of the embodiments of the application, and the actual structure is not limited thereto. In general, if a person skilled in the art is inspired by it, without departing from the purpose of the application, without creative design, similar structure and embodiments of the technical solution can be designed, which should belong to the protection scope of the application.

Claims

1. A raw material mixing device for foam materials, characterized in that: It includes cylinder wall scraping assembly (1), telescopic stirring assembly (2), elastic wing pushing assembly (3), synchronous gas supply assembly (4), drive assembly (5) and rack assembly (6), the cylinder wall scraping assembly (1) is located on the rack assembly (6), the telescopic stirring assembly (2) is located on the elastic wing pushing assembly (3), the elastic wing pushing assembly (3) is located on the rack assembly (6), the synchronous gas supply assembly (4) and drive assembly (5) are respectively located on both sides of the rack assembly (6); The telescopic stirring assembly (2) includes polygonal slide rod (21), tension spring (22) and rotary support frame (23), the elastic wing pushing assembly (3) includes pumping rotary part (34), the cylinder wall scraping assembly (1) includes mixing cylinder (11), the bottom of the mixing cylinder (11) is provided with discharge port (111), the pumping rotary part (34) is rotatably arranged below the discharge port (111), the polygonal slide rod (21) is slidably arranged in the pumping rotary part (34) and rotates with the pumping rotary part (34), the tension spring (22) is sleeved on the polygonal slide rod (21), and the rotary support frame (23) is fixedly connected to the top of the polygonal slide rod (21).

2. A raw material mixing apparatus for a foam material according to claim 1, characterized in that: The telescopic stirring assembly (2) further includes telescopic plate (24) and elastic element (25), the telescopic plate (24) is telescopically arranged in the rotary support frame (23), the telescopic plate (24) is annularly and uniformly arranged with a plurality of groups, the telescopic plate (24) is in an inclined state, and the end of the telescopic plate (24) is provided with a slanted part (241).

3. A raw material mixing apparatus for a foam material according to claim 2, characterized in that: The cylinder wall scraping assembly (1) further includes scraping piston (12), the rack assembly (6) includes rack base (61), the mixing cylinder (11) is arranged on the rack base (61), the scraping piston (12) is slidingly arranged in the mixing cylinder (11), and the conical surface part of the scraping piston (12) is made of elastic material, and the conical surface angle of the scraping piston (12) is greater than the conical surface angle of the mixing cylinder (11).

4. A raw material mixing apparatus for a foam material according to claim 3, characterized in that: The elastic wing pushing assembly (3) further includes impeller part (31) and elastic wing (32), the impeller part (31) is fixedly connected to the pumping rotary part (34), the tension spring (22) is arranged between the rotary support frame (23) and the impeller part (31), a plurality of fixed blades (311) are annularly and uniformly arranged on the impeller part (31), the elastic wing (32) is rotatably arranged on the fixed blade (311), and the elastic wing (32) is inclined upward in a free state.

5. A raw material mixing apparatus for a foam material according to claim 4, characterized in that: The elastic wing pushing assembly (3) further includes pumping fixed part (33), the rack assembly (6) further includes pump support frame (62), the pump support frame (62) is fixedly connected in the rack base (61), the pumping fixed part (33) is fixedly connected in the pump support frame (62), and the pumping rotary part (34) is rotatably arranged on the pumping fixed part (33).

6. A raw material mixing apparatus for a foam material according to claim 5, wherein: The synchronous air supply assembly (4) comprises a ring-shaped air cavity (41), a high-pressure nozzle (42), an air pump (43) and an air supply pipe (44), the ring-shaped air cavity (41) is fixed to the bottom of the material pumping pump fixed part (33), hollow rod parts (411) are uniformly arranged on the ring-shaped air cavity (41), the high-pressure nozzle (42) is arranged in the hollow rod part (411), the air pump (43) is arranged on the rack base (61), and the air supply pipe (44) is arranged between the air pump (43) and the ring-shaped air cavity (41).

7. A raw material mixing apparatus for a foam material according to claim 6, wherein: The driving assembly (5) comprises a driving motor (51), a driving gear (52), a driven gear ring (53) and a driven gear (54), the driving motor (51) is arranged on the rack base (61), the driving gear (52) is arranged on the output shaft of the driving motor (51), the driven gear ring (53) is arranged outside the material pumping pump rotating part (34), and the driven gear ring (53) and the driving gear (52) are in meshing transmission.

8. A raw material mixing apparatus for a foam material according to claim 7, characterized in that: The driven gear (54) is arranged on the input shaft of the air pump (43), and the driven gear ring (53) and the driven gear (54) are in meshing transmission.

9. A raw material mixing apparatus for a foam material according to claim 8, characterized in that: The elastic element (25) for pulling back the retractable plate (24) is arranged between the retractable plate (24) and the rotating support frame (23).

10. A method of using a raw material mixing device for a foam material, using the raw material mixing device for a foam material according to claim 9, characterized by, The method comprises the following steps: Step one: the raw materials to be mixed are supplied into the mixing cylinder (11), then the scraping piston (12) is placed on the top of the mixing cylinder (11) and is pressed down to the height of being flush with the material surface in the mixing cylinder (11), and in the process of pressing down the scraping piston (12), the air below is discharged through the one-way exhaust valve on the scraping piston (12); Step two: the driving motor (51) is started, the material pumping pump rotating part (34) is rotated through the driving gear (52) and the driven gear ring (53), the material pumping pump rotating part (34) rotates in such a manner that the impeller part (31) is rotated, at this time, the elastic wing (32) is located behind the fixed wing (311), the elastic wing (32) changes into the same horizontal angle as the fixed wing (311) under the resistance of the material, at this time, the elastic wing (32) does not exert the longitudinal thrust on the material; on the other hand, the material pumping pump rotating part (34) also rotates with the polygonal slide rod (21), when the rotating support frame (23) rotates, the baffle between the material pumping pump fixed part (33) and the material pumping pump rotating part (34) is closed, at this time, the thrust of the material on the oblique part (241) is outward, the retractable plate (24) is extended, and since the retractable plate (24) has an inclination angle, the retractable mixing assembly (2) has a tendency to move upward when rotating, and the lifting force is in opposition to the tension spring (22); Step three: after the retractable plate (24) is extended, the material in the mixing cylinder (11) can be mixed and stirred through the rotation of the retractable plate (24) and the oblique part (241), and the height of the retractable plate (24) can be controlled by changing the rotating speed of the rotating support frame (23), so that the materials in the mixing cylinder (11) at different depths are mixed and stirred. Step four: reverse rotation of the driving motor (51), because the rotation direction of the polygon slide rod (21) is opposite, so the telescopic plate (24) will retract under the counter thrust of the material against the oblique part (241), at the same time, the baffle between the material pump fixed part (33) and the material pump rotating part (34) is opened, the elastic flaps (32) are inclined because they are in front of the fixed flaps (311), so they can exert longitudinal thrust on the material, so that the mixed material in the mixing cylinder (11) is discharged through the material pump; Step five: in the process of discharging the material, the scraping piston (12) descends under the action of negative pressure, which can scrape the material adhering to the side wall of the mixing cylinder (11), because the taper angle of the scraping piston (12) is larger than that of the mixing cylinder (11), so when the outer ring of the scraping piston (12) first contacts the bottom of the mixing cylinder (11), it can extrude the material adhering to the bottom of the mixing cylinder (11) in the process of gradually increasing the contact area; after the scraping piston (12) contacts the rotating support frame (23), it can overcome the elastic force of the tension spring (22) to press down the rotating support frame (23) into the discharge port (111); Step six: at the same time, the air pump (43) supplies air into the annular air cavity (41) and sprays it out through the high-pressure nozzle (42), the gas is divided into small bubbles when passing through the high-pressure nozzle (42), thus completing the air supply step in physical foaming.

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