Raw material preheating device for polystyrene production and processing

Abstract

The invention relates to the technical field of polystyrene raw material preheating, in particular to a polystyrene production and processing raw material preheating device which comprises a preheating box, a rack is arranged at the top of the preheating box, a crushing assembly used for crushing polystyrene raw materials is arranged on the side wall of the rack, and an intermittent rotating assembly is arranged at the top of the preheating box. A quantitative feeding assembly is arranged at the top of the intermittent rotating assembly, a smashing assembly used for conducting secondary smashing on polystyrene raw materials is arranged at the top of the preheating box, a preheating tank used for preheating the polystyrene raw materials is arranged in the preheating box, and a heat preservation frame used for storing the polystyrene raw materials is further arranged in the preheating box; a sliding drawer is arranged in the heat preservation frame in a sliding mode, the top of the heat preservation frame communicates with a discharging pipe, quantitative raw materials can be received through the material receiving frame every time, then the raw materials are put and preheated, and the situation that the working time of the device is prolonged due to too few raw materials and preheating is uneven due to too many raw materials can be avoided.

Description

Technical Field

[0001] The invention relates to the technical field of polystyrene raw material preheating, in particular to a raw material preheating device for polystyrene production and processing. Background Art

[0002] Polystyrene insulation board is made of polystyrene resin, also known as extruded polystyrene insulation board. It is a rigid foam insulation board formed by continuous extrusion and foaming through a special process. Polystyrene foam plastics are mainly divided into two types: molded polystyrene board (EPS) and extruded polystyrene board (XPS). Compared with EPS board, XPS board, as the third generation of rigid foam insulation material, has simplified the production process and has excellent performance that EPS does not have. As a heat-insulating and moisture-proof material widely used in the construction industry, XPS board has been widely used in wall insulation, flat concrete roofs, steel structure roof insulation projects, as well as moisture-proof insulation and ground expansion control in low-temperature storage, ground, parking platforms, airport runways, highways and other fields. In addition, the recycled polystyrene raw materials need to be preheated before processing.

[0003] Chinese patent publication number CN213860347U discloses a raw material preheating device for the production of polystyrene insulation boards, comprising a crushing frame, the interior of the crushing frame is rotatably connected to a rotating rod through a bearing, a plurality of crushing knives are bolted to the surface of the rotating rod, a motor is provided on one side of the crushing frame, the output end of the motor is sleeved with the rotating rod through a coupling, the bottom of the crushing frame is connected to a heating box, a plurality of heating pipes are bolted to the surface of the heating box, and an insulation shell is bolted to the outer side of the heating pipe; the utility model opens the cover by the cooperation of the handle, and then the recovered bulk raw materials are placed in the interior of the crushing frame through the feed hopper, and then the crushing knife is started to drive the rotating rod to rotate, and then the rotating rod drives the crushing knife to crush the raw materials, thereby solving the problem that the existing preheating device has a simple structure and cannot effectively crush bulk raw materials.

[0004] The device pulverizes large pieces of polystyrene by feeding them into a pulverizing frame, then preheats them using a heating tube. However, precisely controlling the amount of polystyrene fed into the pulverizer is difficult. Too little increases the device's operating time, while too much can lead to uneven preheating. Even with precise pre-feed control, the added time still reduces overall efficiency. Summary of the Invention

[0005] In view of the above problems, a raw material preheating device for polystyrene production and processing is provided. The material receiving frame can receive a fixed amount of raw materials each time, and then the raw materials are put in for preheating, which can avoid increasing the working time of the device due to too little raw materials and uneven preheating caused by too much raw materials.

[0006] To solve the problems of the prior art, the present invention provides a raw material preheating device for polystyrene production and processing, including a preheating box. A frame is provided on the top of the preheating box. A crushing component for crushing polystyrene raw materials is provided on the side wall of the frame. An intermittent rotation component is provided on the top of the preheating box. A quantitative feeding component is provided on the top of the intermittent rotation component. A crushing component for secondary crushing of polystyrene raw materials is provided on the top of the preheating box. A preheating tank for preheating polystyrene raw materials is provided inside the preheating box. A heat preservation frame for storing polystyrene raw materials is also provided inside the preheating box. A sliding drawer is slidably provided inside the heat preservation frame. A discharge pipe is connected to the top of the heat preservation frame. The top of the discharge pipe is connected to the bottom of the preheating tank. A solenoid valve is provided inside the discharge pipe.

[0007] Preferably, the crushing component includes a crushing frame provided on the side wall of the frame. Symmetrical crushing rollers are rotatably provided inside the crushing frame. One ends of the two crushing rollers are provided with meshing circular gears. A first motor for driving the crushing rollers to rotate is provided on the top of the frame.

[0008] Preferably, the intermittent rotation component includes a driving rod and a rotating rod rotatably provided on the top of the preheating box. One end of the driving rod extends into the preheating box. A driven wheel is provided on the outside of the driving rod. A turntable is provided on the top of the driving rod. A resisting rod and an arc-shaped disc are respectively provided on the top of the turntable. A special-shaped block for the cooperation of the resisting rod and the arc-shaped disc is provided on the outside of the rotating rod. A driving member for driving the intermittent rotation component to work is provided on the top of the preheating box. <00000​​​Preferably, a fan-shaped blocking plate for blocking the discharge port of the crushing frame is provided between every two of the receiving frames.

[0011] Preferably, the crushing assembly includes a crushing frame connected to the top of the preheating box, symmetrical crushing rollers are arranged for rotation inside the crushing frame, one end of the two crushing rollers are provided with mutually meshing circular gears, one of the crushing rollers is provided with a first conical gear on the outside, the top of the crushing frame is connected to a guide cover for convenient collection of polystyrene raw materials, the bottom of the crushing frame is connected to a flow frame, and one end of the flow frame is connected to the interior of the preheating tank.

[0012] Preferably, the driving member includes a second motor arranged on the top of the preheating box, and the output shaft of the second motor is provided with a driving wheel meshingly connected to the driven wheel.

[0013] Preferably, a transmission rod is provided on the top of the preheating box, a second bevel gear meshing with the first bevel gear is provided on the top of the transmission rod, and a first transmission mechanism is provided between the transmission rod and the drive rod.

[0014] Preferably, an annular heating plate is provided on the inner wall of the preheating tank, a stirring rod is rotatably provided inside the preheating tank, and a second transmission mechanism is provided between the stirring rod and the driving rod.

[0015] Preferably, the first transmission mechanism and the second transmission mechanism are both synchronous wheels and synchronous belts connected to the synchronous wheels.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] 1. The second motor drives the driving wheel to rotate, and the driving wheel drives the driven wheel and the driving rod to rotate. At the same time, the turntable on the top of the driving rod will also rotate. The resistance rod and the arc disk on the top of the turntable work in conjunction with the special-shaped block to drive the rotating rod to rotate intermittently. At the same time, the disc on the top of the rotating rod and multiple receiving frames will also rotate intermittently, that is, when the receiving frame rotates to a specified position, it will stay at the bottom of the crushing frame for a period of time before rotating. When the receiving frame rotates to another specified position, the trapezoidal resistance block on the side wall of the receiving frame will be squeezed with the arc resistance plate, so that the resistance plate inside the receiving frame moves, thereby forming a drop-out port from small to large. At this time, the raw materials inside the receiving frame are crushed by the inclined plate. It will slowly fall and then fall into the inside of the guide cover, and the opening of the guide cover will completely cover the dropouts from small to large, so the raw materials inside the receiving frame will only fall into the inside of the guide cover. When the receiving frame rotates to the specified position, the receiving frame will stay on the top of the guide cover for a period of time. At this time, the dropouts at the bottom of the receiving frame are completely open, and the guide cover is used to transport the raw materials to the inside of the crushing frame. The internal crushing rollers of the crushing frame can be used to completely crush the raw materials, which is convenient for later preheating. The receiving frame can receive a fixed amount of raw materials each time, and then the raw materials can be put in for preheating, which can avoid increasing the working time of the device due to too little raw materials and uneven preheating due to too much raw materials.

[0018] 2. The raw materials can be preheated by utilizing the annular heating plate inside the preheating tank. The preheated raw materials can then be transported to the inside of the insulation frame through the solenoid valve and the discharge pipe, which is convenient for storage and later use. The driving rod then drives the first transmission mechanism and the second transmission mechanism to rotate, and further drives the transmission rod and the stirring rod to rotate. When the transmission rod rotates, it drives the second bevel gear to rotate, and the second bevel gear drives the first bevel gear to rotate, and further drives the crushing roller to work, thereby performing secondary crushing on the raw materials. The rotation of the stirring rod can stir the raw materials entering the preheating tank, so that the raw materials are preheated evenly. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 The present invention is a schematic diagram of the overall structure of a raw material preheating device for polystyrene production and processing.

[0020] Figure 2 The diagram is a rear structural diagram of a raw material preheating device for polystyrene production and processing.

[0021] Figure 3 This is a schematic diagram of the internal structure of a crushing frame in a raw material preheating device for polystyrene production and processing.

[0022] Figure 4 The present invention is a structural diagram of some components of a raw material preheating device for polystyrene production and processing.

[0023] Figure 5The present invention is a structural schematic diagram of an intermittent rotating component in a raw material preheating device for polystyrene production and processing.

[0024] Figure 6 The present invention is a structural diagram of a driving wheel and a driven wheel in a raw material preheating device for polystyrene production and processing.

[0025] Figure 7 The present invention is a schematic diagram of the internal structure of a material receiving frame in a raw material preheating device for polystyrene production and processing.

[0026] Figure 8 The present invention is a schematic diagram of the operation of the material receiving frame when feeding materials in a raw material preheating device for polystyrene production and processing.

[0027] Figure 9 The present invention is a schematic diagram showing the working of a trapezoidal contact block and an arc-shaped contact plate in a raw material preheating device for polystyrene production and processing when the trapezoidal contact block comes into contact with the arc-shaped contact plate.

[0028] Figure 10 This is a schematic diagram of the internal structure of a preheating box in a raw material preheating device for polystyrene production and processing.

[0029] Figure 11 This is a schematic diagram of the internal structure of a crushing box in a raw material preheating device for polystyrene production and processing.

[0030] Figure 12 The present invention is a structural diagram of a flow frame in a raw material preheating device for polystyrene production and processing.

[0031] Figure 13 This is a schematic diagram of the internal structure of a preheating tank in a raw material preheating device for polystyrene production and processing.

[0032] The numbers in the figure are: 1, preheating box; 2, frame; 3, first motor; 4, crushing frame; 5, receiving frame; 6, fan-shaped blocking plate; 7, arc-shaped contact plate; 8, crushing frame; 9, preheating tank; 10, insulation frame; 11, sliding drawer; 12, first transmission mechanism; 13, crushing roller; 14, disc; 15, second motor; 16, driving rod; 17, rotating disc; 18, contact rod; 19, arc-shaped disc; 20, rotating rod; 21, special-shaped block; 2 2. Driven wheel; 23. Driving wheel; 24. Inclined plate; 25. Baffle plate; 26. Slide rod; 27. Compression spring; 28. Profile frame; 29. Push rod; 30. Trapezoidal resistance block; 31. Air guide cover; 32. First bevel gear; 33. Second bevel gear; 34. Second transmission mechanism; 35. Crushing roller; 36. Transmission rod; 37. Flow frame; 38. Stirring rod; 39. Annular heating plate; 40. Solenoid valve; 41. Discharge pipe. DETAILED DESCRIPTION

[0033] In order to further understand the features, technical means, specific objectives and functions achieved by the present invention, the present invention is further described in detail below with reference to the accompanying drawings and specific embodiments.

[0034] like Figures 1 to 13 As shown, the present invention provides:

[0035] A raw material preheating device for polystyrene production and processing includes a preheating box 1, a frame 2 is provided on the top of the preheating box 1, a crushing assembly for crushing the polystyrene raw material is provided on the side wall of the frame 2, an intermittent rotating assembly is provided on the top of the preheating box 1, a quantitative feeding assembly is provided on the top of the preheating box 1, a crushing assembly for secondary crushing of the polystyrene raw material is provided, a preheating tank 9 for preheating the polystyrene raw material is provided inside the preheating box 1, an insulation frame 10 for storing the polystyrene raw material is also provided inside the preheating box 1, a sliding drawer 11 is slidingly provided inside the insulation frame 10, a discharge pipe 41 is connected to the top of the insulation frame 10, the top of the discharge pipe 41 is connected to the bottom of the preheating tank 9, and an electromagnetic valve 40 is provided inside the discharge pipe 41.

[0036] The polystyrene raw material can be cut into small-volume raw materials in advance through the crushing component, and then the crushed polystyrene raw material can be quantitatively dosed through the intermittent rotation component in conjunction with the quantitative feeding component, so as to avoid increasing the working time of the device due to too little raw material and causing uneven preheating due to too much raw material. The raw material after being fed is then completely crushed by the crushing component, which is convenient for later preheating inside the preheating tank 9, and the preheated polystyrene raw material will be transported to the inside of the insulation frame 10 through the discharge pipe 41, so that the polystyrene raw material can be stored for later use.

[0037] like Figure 3 As shown, the crushing assembly includes a crushing frame 4 arranged on the side wall of the frame 2, and symmetrical crushing rollers 13 are rotatably arranged inside the crushing frame 4. One end of the two crushing rollers 13 is provided with mutually meshing circular gears, and the top of the frame 2 is provided with a first motor 3 for driving the crushing rollers 13 to rotate.

[0038] The first motor 3 is used to drive the crushing roller 13 to perform preliminary crushing on the raw material, so that the polystyrene raw material is crushed into small-volume raw materials, and the crushed polystyrene raw materials are accumulated inside the crushing frame 4, so that these small-volume polystyrene raw materials can be conveniently collected inside the receiving frame 5.

[0039] like Figure 5 and Figure 6As shown, the intermittent rotation assembly includes a driving rod 16 and a rotating rod 20 rotatably arranged on the top of the preheating box 1. One end of the driving rod 16 extends into the interior of the preheating box 1. A driven wheel 22 is provided on the outside of the driving rod 16. A turntable 17 is provided on the top of the driving rod 16. A resistance rod 18 and an arc-shaped disk 19 are respectively provided on the top of the turntable 17. A special-shaped block 21 that cooperates with the resistance rod 18 and the arc-shaped disk 19 is provided on the outside of the rotating rod 20. A driving member for driving the intermittent rotation assembly is provided on the top of the preheating box 1.

[0040] By rotating the driven wheel 22 and the driving rod 16, the turntable 17 on the top of the driving rod 16 will also rotate. The resistance rod 18 and the arc disk 19 on the top of the turntable 17 can cooperate with the special-shaped block 21 to drive the rotating rod 20 to rotate intermittently. At the same time, the disc 14 and multiple material receiving frames 5 on the top of the rotating rod 20 will also rotate intermittently. Through the intermittent rotation component, the material receiving frame 5 will stay at the designated position for a period of time when receiving and feeding materials.

[0041] like Figure 7 and Figure 8 As shown, the quantitative feeding component includes a disc 14 arranged on the top of the rotating rod 20, and the outer wall of the disc 14 is provided with a plurality of material receiving frames 5 for receiving polystyrene raw materials, and inclined plates 24 are provided on both sides of the inner wall of the material receiving frame 5. The inner wall of the material receiving frame 5 is provided with symmetrical sliding rods 26, and the outer sliding of the sliding rod 26 is provided with a stop plate 25 and a molded frame 28. The outer sleeve of the sliding rod 26 is provided with a compression spring 27, one end of the compression spring 27 is connected to the inner wall of the material receiving frame 5, and the other end of the compression spring 27 is connected to the side wall of the stop plate 25. A symmetrical top rod 29 is provided on one side of the molded frame 28, and one end of the top rod 29 extends to the outside of the material receiving frame 5 and is provided with a trapezoidal interference block 30. The top of the preheating box 1 is provided with an arc-shaped interference plate 7 that is squeezed by the trapezoidal interference block 30.

[0042] When the material receiving frame 5 rotates, the trapezoidal resistance block 30 on the side wall of the material receiving frame 5 will be squeezed with the arc-shaped resistance plate 7, so that the resistance plate 25 inside the material receiving frame 5 moves, thereby forming a drop opening from small to large. At this time, the raw materials inside the material receiving frame 5 will slowly fall under the action of the inclined plate 24, and thus be released. When the trapezoidal resistance block 30 is out of contact with the arc-shaped resistance plate 7, the resistance plate 25 will be reset under the action of the compression spring 27, and the drop opening will be blocked again, making it convenient for re-receiving materials later.

[0043] like Figure 5 and Figure 9 As shown, a fan-shaped blocking plate 6 for blocking the discharge port of the crushing frame 4 is provided between every two receiving frames 5 .

[0044] The fan-shaped blocking plate 6 is driven to rotate by the material receiving frame 5 to further block the material outlet of the crushing frame 4 to prevent the material inside the crushing frame 4 from falling.

[0045] like Figure 11 As shown, the crushing assembly includes a crushing frame 8 connected to the top of the preheating box 1, and symmetrical crushing rollers 35 are rotatably arranged inside the crushing frame 8. One end of the two crushing rollers 35 is provided with mutually meshing circular gears, and the outside of one of the crushing rollers 35 is provided with a first bevel gear 32. The top of the crushing frame 8 is connected to a guide cover 31 for conveniently collecting polystyrene raw materials, and the bottom of the crushing frame 8 is connected to a flow frame 37, and one end of the flow frame 37 is connected to the interior of the preheating tank 9.

[0046] By utilizing the air guide hood 31 to transport the raw materials to the interior of the crushing frame 8, the raw materials can be completely crushed by utilizing the internal crushing rollers 35 of the crushing frame 8, which is convenient for subsequent preheating. The openings of the air guide hood 31 will completely cover the drop openings from small to large, so the raw materials inside the receiving frame 5 will only fall into the interior of the air guide hood 31.

[0047] like Figure 6 As shown, the driving member includes a second motor 15 arranged on the top of the preheating box 1 , and the output shaft of the second motor 15 is provided with a driving wheel 23 meshingly connected with the driven wheel 22 .

[0048] The second motor 15 can drive the intermittent rotating assembly to work, thereby further receiving and feeding the raw materials in a quantitative manner.

[0049] like Figure 10 and Figure 11 As shown, a transmission rod 36 is provided on the top of the preheating box 1, and a second bevel gear 33 meshing with the first bevel gear 32 is provided on the top of the transmission rod 36. A first transmission mechanism 12 is provided between the transmission rod 36 and the drive rod 16.

[0050] The first transmission mechanism 12 can simultaneously drive the transmission rod 36 and the driving rod 16 to rotate. The second bevel gear 33 on the top of the transmission rod 36 cooperates with the first bevel gear 32 to drive the crushing roller 35 to work and crush the raw materials.

[0051] like Figure 13 As shown, an annular heating plate 39 is provided on the inner wall of the preheating tank 9 , a stirring rod 38 is rotatably provided inside the preheating tank 9 , and a second transmission mechanism 34 is provided between the stirring rod 38 and the driving rod 16 .

[0052] The stirring rod 38 can be driven to rotate by the second transmission mechanism 34, and the stirring rod 38 can stir the raw materials entering the preheating tank 9 so that the raw materials are preheated evenly.

[0053] like Figure 10 As shown, the first transmission mechanism 12 and the second transmission mechanism 34 are both synchronous wheels and synchronous belts connected to the synchronous wheels.

[0054] The first transmission mechanism 12 and the second transmission mechanism 34 can reduce the number of driving parts, making the coordination between the various components smoother.

[0055] Working principle: First, the polystyrene raw material is put into the inside of the crushing box, and the first motor 3 is used to drive the crushing roller 13 to work, so as to perform preliminary crushing on the raw material, so that the polystyrene raw material is crushed into small-volume raw materials, and the crushed polystyrene raw material will be accumulated inside the crushing frame 4. At this time, the second motor 15 is started to drive the driving wheel 23 to rotate, and then the driving wheel 23 drives the driven wheel 22 and the driving rod 16 to rotate. At the same time, the turntable 17 on the top of the driving rod 16 will also rotate. The interference rod 18 and the arc disk 19 on the top of the turntable 17 work in conjunction with the special-shaped block 21 to drive the rotating rod 20 to rotate intermittently. At the same time, the disc 14 on the top of the rotating rod 20 and the multiple receiving frames 5 will also rotate intermittently, that is, when the receiving frame 5 rotates to the specified position, it will The bottom of the crushing frame 4 stays for a period of time and then rotates. When the receiving frame 5 stays at the bottom of the crushing frame 4, the polystyrene raw materials crushed inside the crushing frame 4 will be collected inside the receiving frame 5. When the receiving frame 5 rotates, the fan-shaped blocking plate 6 will block the discharge port of the crushing frame 4 to prevent the raw materials inside the crushing frame 4 from falling. When the receiving frame 5 rotates to another specified position, the trapezoidal resistance block 30 on the side wall of the receiving frame 5 will be squeezed with the arc-shaped resistance plate 7, so that the resistance plate 25 inside the receiving frame 5 moves, thereby forming a drop port from small to large. At this time, the raw materials inside the receiving frame 5 will slowly fall under the action of the inclined plate 24, and then fall into the inside of the guide cover 31. When the trapezoidal resistance block 30 is out of contact with the arc-shaped resistance plate 7, the resistance plate 25 The material receiving frame 5 will be reset under the action of the compression spring 27, and the material outlet will be blocked again, which is convenient for re-receiving the material later, and the opening of the guide cover 31 will completely cover the material outlet from small to large, so the material inside the receiving frame 5 will only fall into the inside of the guide cover 31. When the receiving frame 5 rotates to the specified position, the receiving frame 5 will stay on the top of the guide cover 31 for a period of time. At this time, the material outlet at the bottom of the receiving frame 5 is completely open, and the guide cover 31 is used to transport the raw material to the inside of the crushing frame 8. The internal crushing roller 35 of the crushing frame 8 can completely crush the raw material, which is convenient for preheating later. The receiving frame 5 can receive a certain amount of raw material each time, and then the raw material can be put in for preheating, which can avoid increasing the working time of the device due to too little raw material and causing excessive raw material to The preheating is uneven, and the completely crushed raw materials will enter the interior of the preheating tank 9 through the flow frame 37. The raw materials can be preheated by using the annular heating plate 39 inside the preheating tank 9. After that, the preheated raw materials can be transported to the interior of the insulation frame 10 through the solenoid valve 40 and the discharge pipe 41, which is convenient for storage and later use. When the drive rod 16 rotates, it will drive the transmission rod 36 and the stirring rod 38 to rotate respectively through the first transmission mechanism 12 and the second transmission mechanism 34. When the transmission rod 36 rotates, it will drive the second bevel gear 33 to rotate, and the second bevel gear 33 will drive the first bevel gear 32 to rotate, further driving the crushing roller 35 to work. The stirring rod 38 can be rotated to stir the raw materials entering the preheating tank 9, so that the raw materials are preheated evenly.

[0056] The above embodiments merely illustrate one or several embodiments of the polystyrene raw material preheating apparatus of the present invention. While the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the present invention. It should be noted that variations and improvements are possible within the scope of the present invention, as would be apparent to those skilled in the art. These variations and improvements fall within the scope of the present invention. Therefore, the scope of the present invention shall be determined by the appended claims.

Claims

1. A raw material preheating device for polystyrene production and processing, characterized in that: The invention comprises a preheating box (1), wherein a frame (2) is provided on the top of the preheating box (1), a crushing assembly for crushing polystyrene raw materials is provided on the side wall of the frame (2), an intermittent rotating assembly is provided on the top of the preheating box (1), a quantitative feeding assembly is provided on the top of the intermittent rotating assembly, a crushing assembly for secondary crushing of the polystyrene raw materials is provided on the top of the preheating box (1), a preheating tank (9) for preheating the polystyrene raw materials is provided inside the preheating box (1), an insulation frame (10) for storing polystyrene raw materials is also provided inside the preheating box (1), a sliding drawer (11) is provided inside the insulation frame (10), a discharge pipe (41) is connected to the top of the discharge pipe (41), the top of the discharge pipe (41) is connected to the bottom of the preheating tank (9), and a solenoid valve (40) is provided inside the discharge pipe (41).

2. A raw material preheating device for polystyrene production and processing according to claim 1, characterized in that: The crushing assembly comprises a crushing frame (4) arranged on the side wall of a frame (2); symmetrical crushing rollers (13) are rotatably arranged inside the crushing frame (4); mutually meshing circular gears are arranged at one end of the two crushing rollers (13); and a first motor (3) for driving the crushing rollers (13) to rotate is arranged on the top of the frame (2).

3. A raw material preheating device for polystyrene production and processing according to claim 2, characterized in that: The intermittent rotation assembly comprises a driving rod (16) and a rotating rod (20) which are rotatably arranged on the top of the preheating box (1), one end of the driving rod (16) extends to the interior of the preheating box (1), a driven wheel (22) is arranged on the outside of the driving rod (16), a turntable (17) is arranged on the top of the driving rod (16), a resisting rod (18) and an arc-shaped disk (19) are respectively arranged on the top of the turntable (17), a special-shaped block (21) which cooperates with the resisting rod (18) and the arc-shaped disk (19) is arranged on the outside of the rotating rod (20), and a driving member for driving the intermittent rotation assembly to work is arranged on the top of the preheating box (1).

4. The raw material preheating device for polystyrene production and processing according to claim 1, characterized in that: The quantitative feeding component includes a disc (14) arranged on the top of the rotating rod (20), the outer wall of the disc (14) is provided with a plurality of material receiving frames (5) for receiving polystyrene raw materials, the inner walls of the material receiving frames (5) are provided with inclined plates (24) on both sides, the inner wall of the material receiving frames (5) is provided with symmetrical sliding rods (26), the outer sliding of the sliding rods (26) is provided with a stop plate (25) and a mold frame (28), and the outer sleeve of the sliding rods (26) is provided with a compression spring. A spring (27) is provided, one end of the compression spring (27) is connected to the inner wall of the material receiving frame (5), and the other end of the compression spring (27) is connected to the side wall of the retaining plate (25). A symmetrical push rod (29) is provided on one side of the mold frame (28), one end of the push rod (29) extends to the outside of the material receiving frame (5) and is provided with a trapezoidal resistance block (30). The top of the preheating box (1) is provided with an arc-shaped resistance plate (7) that is squeezed by the trapezoidal resistance block (30).

5. The raw material preheating device for polystyrene production and processing according to claim 4, characterized in that: A fan-shaped blocking plate (6) for blocking the discharge port of the crushing frame (4) is provided between every two of the receiving frames (5).

6. The raw material preheating device for polystyrene production and processing according to claim 1, characterized in that: The pulverizing assembly comprises a pulverizing frame (8) connected to the top of the preheating box (1); symmetrical pulverizing rollers (35) are rotatably arranged inside the pulverizing frame (8); one end of the two pulverizing rollers (35) is provided with mutually meshing circular gears; the outside of one of the pulverizing rollers (35) is provided with a first conical gear (32); the top of the pulverizing frame (8) is connected to a flow guide cover (31) for conveniently collecting polystyrene raw materials; the bottom of the pulverizing frame (8) is connected to a flow frame (37); one end of the flow frame (37) is connected to the interior of the preheating tank (9).

7. The raw material preheating device for polystyrene production and processing according to claim 2, characterized in that: The driving member comprises a second motor (15) arranged on the top of the preheating box (1); the output shaft of the second motor (15) is provided with a driving wheel (23) meshingly connected with a driven wheel (22).

8. The raw material preheating device for polystyrene production and processing according to claim 7, characterized in that: A transmission rod (36) is provided on the top of the preheating box (1), a second bevel gear (33) meshingly connected with the first bevel gear (32) is provided on the top of the transmission rod (36), and a first transmission mechanism (12) is provided between the transmission rod (36) and the driving rod (16).

9. The raw material preheating device for polystyrene production and processing according to claim 5, characterized in that: The inner wall of the preheating tank (9) is provided with an annular heating plate (39), the interior of the preheating tank (9) is provided with a stirring rod (38) for rotation, and a second transmission mechanism (34) is provided between the stirring rod (38) and the driving rod (16).

10. The raw material preheating device for polystyrene production and processing according to claim 8, characterized in that: The first transmission mechanism (12) and the second transmission mechanism (34) are both synchronous wheels and synchronous belts connected to the synchronous wheels.

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