Pelletizing and cooling device for polystyrene

Abstract

The utility model belongs to the technical field of plastic particle forming, and particularly relates to a polystyrene granulation cooling device which comprises a granulator, a water tank is arranged on one side of the pelletizer, a cooling tank is fixedly installed on the upper portion of one end of the water tank, a lifting cylinder is fixedly installed at the bottom of the cooling tank and is obliquely arranged, the upper end of the lifting cylinder is arranged in an air drying box, a plurality of water filtering holes are formed in the periphery of the lifting cylinder in an array mode, and a discharging pipe is fixedly connected to the lower side of the upper end of the lifting cylinder. Sliding holes are formed in box bodies on the two sides of the screening box, sliding rails are fixedly mounted on the outer sides of the sliding holes, sliding rods are slidably mounted in the sliding rails, bosses are fixedly mounted on the two sides of the interior of the screening box, and screening plates are obliquely arranged on the upper portions of the bosses; through ingenious combination of the cooling tank, the lifting cylinder, the air drying box, the screening box and other parts, rapid cooling, effective drying and accurate screening of polystyrene particles are achieved, and the production efficiency and the product quality are remarkably improved.

Description

Technical Field

[0001] The utility model relates to the technical field of plastic particle molding, in particular to a polystyrene granulation cooling device. Background Art

[0002] Polystyrene is widely used in optical instruments, the chemical industry, and daily necessities. Expanded polystyrene is also widely used in building materials due to its sound absorption, sound insulation, and heat insulation properties. Polystyrene granulation and cooling equipment is widely used in the production of polystyrene plastic granules.

[0003] The polystyrene granulation and cooling device processes polystyrene raw materials into granular products through the steps of melt extrusion, cutting and granulation, cooling and solidification, lifting separation and drying, screening and packaging.

[0004] When the existing polystyrene granulation cooling device cools the granulated polystyrene particles, due to technical reasons, the polystyrene particles may be of different sizes during granulation, resulting in the polystyrene particles having different sizes and shapes after cooling and drying, which affects the quality of the final product. Therefore, a polystyrene granulation cooling device is proposed to address the above problems. Utility Model Content

[0005] In order to make up for the shortcomings of the existing technology, the existing polystyrene granulation and cooling device may cause the polystyrene particles to be of different sizes during granulation due to technical reasons when cooling the granulated polystyrene particles, resulting in the polystyrene particles after cooling and drying being of different sizes and shapes, which affects the quality of the final product. The utility model proposes a polystyrene granulation and cooling device.

[0006] The technical solution adopted by the utility model to solve its technical problems is: the polystyrene granulation cooling device described in the utility model comprises a granulator; a fixed seat is fixedly installed on the extrusion end platform of the granulator, a cutting machine is fixedly installed on the upper part of the fixed seat, a water tank is provided on one side of the granulator, a cooling trough is fixedly installed on the upper part of one end of the water tank, a mounting hole is provided on the trough body on one side of the cooling trough, the extrusion end of the granulator is arranged in the mounting hole, a lifting cylinder is fixedly installed on the bottom of the cooling trough, the lifting cylinder is inclined, a water outlet is provided on the upper part of the water tank, an air-drying box is fixedly installed on the water outlet, the upper end of the lifting cylinder is arranged in the air-drying box, and a plurality of water filtering holes are provided in the outer peripheral array, a feeding pipe is fixedly connected to the lower side of the upper end of the lifting cylinder, the other end of the feeding pipe passes through the air-drying box, an auger is provided in the lifting cylinder, both ends of the auger are rotatably mounted in the lifting cylinder through bearings, and the air-drying Material toggling mechanism, its both ends are to be positioned between the end of two guide rails and the guide rails on the left side of the filter box, so that the filter screen can be easily installed.

[0007] Preferably, a U-shaped nozzle is fixedly installed on one side of the cooling trough, both ends of the U-shaped nozzle pass through the side wall of the cooling trough and are fixedly installed with multiple nozzles, a water pump is fixedly installed on one side of the upper part of the water tank, the water inlet end of the water pump is fixedly connected to a water suction pipe, the other end of the water suction pipe is fixedly connected to the upper part of the water tank, and the lower end extends to the bottom of the water tank, the water outlet end of the water pump is fixedly connected to a connecting pipe, and the other end of the connecting pipe is fixedly connected to the U-shaped nozzle, and the cooling water in the water tank is circulated to the U-shaped nozzle by the water pump, and is evenly sprayed on the polystyrene particles by the nozzle, thereby achieving rapid and uniform cooling and effectively shortening the cooling time.

[0008] Preferably, an air inlet is provided on the top of the air drying box, a wind tube is fixedly installed on the air inlet, a fan is fixedly installed inside the wind tube through a fixed bracket, and a plurality of air holes are provided on the air inlet end of the wind tube. External air is sucked in from the air holes by the fan, and is accelerated in the wind tube and then blown into the air drying box, forming a strong airflow, accelerating the evaporation of moisture on the surface of the particles, and improving the drying efficiency.

[0009] Preferably, a lifting motor is fixedly installed on one side of the air drying box, and the rotating shaft of the lifting motor is fixedly connected to one end of the auger. By setting the continuous rotation of the auger, the stability of the particles during the lifting process is ensured, and the accumulation or blockage of the particles during the transportation process is avoided.

[0010] Preferably, a vibration motor is fixedly mounted on one end of the screening box, a gear is fixedly mounted on the rotating shaft of the vibration motor, the teeth on the gear are meshed with the teeth on the turntable, the turntable is driven to rotate by the operation of the vibration motor, and the screen plate is vibrated through the connecting rod and the sliding rod, which helps to quickly separate and grade the particles on the screen and improve the screening accuracy and efficiency.

[0011] Preferably, a slide groove is provided on one side and the other end of the screening box, and drawers are slidably installed in the slide groove, and the two drawers are respectively arranged on both sides of the partition. By arranging the sliding installation of the drawers, the collection and cleaning work is made more convenient and quick, and the complexity and labor intensity of manual operation are reduced.

[0012] The utility model is beneficial in that:

[0013] 1. The utility model starts the granulator to melt and extrude the polystyrene material during the granulation production of the polystyrene material, and then starts the cutting machine on the fixed seat to cut the strip polystyrene extruded from the extrusion end of the granulator. The cut particles fall into the cooling trough below under the action of gravity, and the water pump is started to inject cooling water into the U-shaped nozzle through the water pipe and the connecting pipe. The cooling water is sprayed from the nozzle to cool the particles in the cooling trough. At the same time, the lifting motor is started to drive the auger to rotate. The spiral on the auger drives the cooling water and particles to move in the lifting cylinder and enter the air drying box. The particles are then drained and air-dried in the air drying box, and then enter the upper part of the sieve plate in the screening box through the discharge pipe. The vibration motor is started. The vibration motor rotates the shaft to drive the gear to rotate, and the gear drives the connecting shaft and the other turntable to rotate at the same time through the tooth groove on the turntable. The turntable drives the slide bar to slide back and forth in the slide rail through the connecting rod, and the slide bar drives the screen plate to slide back and forth in the screening box. The structural design for screening the particles on it realizes the function of screening granulated particles of different sizes, and solves the problem that the existing polystyrene granulation cooling device may have different sizes when cooling the polystyrene particles after granulation due to technical reasons, resulting in the polystyrene particles after cooling and drying having different sizes and shapes, affecting the quality of the final product, thereby improving the quality of the polystyrene particle products. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0015] Figure 1 It is a structural diagram of one side of the granulation cooling device;

[0016] Figure 2 It is a structural diagram of the other side of the granulation cooling device;

[0017] Figure 3 Schematic diagram of the internal structure of the cooling device;

[0018] Figure 4 This is a schematic diagram of the structure of the vibrating screen drive device;

[0019] Figure 5 Schematic diagram of the air drying device structure.

[0020] In the figure: 1. Granulator; 2. Fixed seat; 3. Cutting machine; 4. Water tank; 5. Cooling trough; 6. Lifting cylinder; 7. Air drying box; 8. Lifting motor; 9. Auger; 10. Air duct; 11. Fixed bracket; 12. Fan; 13. Water pump; 14. Water suction pipe; 15. Connecting pipe; 16. U-shaped nozzle; 17. Discharge pipe; 18. Screening box; 19. Boss; 20. Screen plate; 21. Sliding rod; 22. Connecting rod; 23. Connecting shaft; 24. Turntable; 25. Vibration motor; 26. Gear; 27. Drawer; 28. Partition. DETAILED DESCRIPTION

[0021] The following will be combined with the accompanying drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0022] See also Figure 1-5As shown, a polystyrene granulation cooling device comprises a granulator 1; a fixing seat 2 is fixedly installed on the extrusion end platform of the granulator 1, a cutting machine 3 is fixedly installed on the upper part of the fixing seat 2, a water tank 4 is provided on one side of the granulator 1, a cooling trough 5 is fixedly installed on the upper part of one end of the water tank 4, a mounting hole is provided on one side of the trough body of the cooling trough 5, the extrusion end of the granulator 1 is arranged in the mounting hole, a lifting cylinder 6 is fixedly installed on the bottom of the cooling trough 5, the lifting cylinder 6 is inclined, a water outlet is provided on the upper part of the water tank 4, an air drying box 7 is fixedly installed on the water outlet, the upper end of the lifting cylinder 6 is arranged in the air drying box 7, and a plurality of water filtering holes are provided in the peripheral array, and the lower side of the upper end of the lifting cylinder 6 is fixedly connected to a discharge pipe 1 7. The other end of the discharge pipe 17 passes through the air drying box 7. An auger 9 is provided in the lifting cylinder 6. Both ends of the auger 9 are rotatably mounted in the lifting cylinder 6 through bearings. A screening box 18 is provided on one side of the air drying box 7 and is fixedly mounted on the top of the water tank 4. Slide holes are provided on the box bodies on both sides of the screening box 18. Slide rails are fixedly mounted on the outside of the slide holes, and slide rods 21 are slidably mounted in the slide rails. Bosses 19 are fixedly mounted on both sides of the interior of the screening box 18. A sieve plate 20 is obliquely provided on the upper part of the boss 19. One end of the slide rod 21 is fixedly mounted on both sides of the sieve plate 20 through a shaft, and the shaft slides in the slide hole. A connecting rod 22 is rotatably mounted on the outside of the other end of the slide rod 21, and a connecting shaft is rotatably mounted inside one end of the screening box 18. 23, both ends of the connecting shaft 23 pass through the screening box 18, and a turntable 24 is fixedly installed, one of the turntables 24 is provided with a plurality of tooth grooves in an array on its circumference, and the other end of the connecting rod 22 is rotatably mounted on the outer edge of the turntable 24, and a partition 28 is fixedly installed inside the screening box 18; during operation, when granulating the polystyrene material, the granulator 1 is started to melt and extrude the polystyrene material, and then the cutting machine 3 on the fixed seat 2 is started to cut the strip polystyrene extruded from the extrusion end of the granulator 1, and the cut particles fall into the cooling trough 5 below under the action of gravity, and the water pump 13 is started to inject cooling water into the U-shaped nozzle 16 through the water pipe 14 and the connecting pipe 15, and the cooling water is sprayed out from the nozzle. The particles in the cooling trough 5 are cooled, and at the same time, the lifting motor 8 is started to drive the auger 9 to rotate. The spiral on the auger 9 drives the cooling water and particles to move in the lifting cylinder 6 and enter the air drying box 7. Then, the particles are drained and air-dried in the air drying box 7. Then, the particles enter the upper part of the sieve plate 20 in the screening box 18 through the discharge pipe 17. The vibration motor 25 is started, and the rotating shaft of the vibration motor 25 drives the gear 26 to rotate. The gear 26 drives the connecting shaft 23 and the other turntable 24 to rotate at the same time through the tooth groove on the turntable 24. The turntable 24 drives the slide rod 21 to slide back and forth in the slide rail through the connecting rod 22. At the same time, the slide rod 21 drives the sieve plate 20 to slide back and forth in the screening box 18. At the same time, the lower end of the sieve plate 20 slides on the upper part of the boss 19 to screen the particles thereon.

[0023] A U-shaped nozzle 16 is fixedly installed on one side of the cooling trough 5, and both ends of the U-shaped nozzle 16 pass through the side wall of the cooling trough 5 and are fixedly installed with multiple nozzles. A water pump 13 is fixedly installed on one side of the upper part of the water tank 4, and the water inlet end of the water pump 13 is fixedly connected to a water pumping pipe 14, the other end of the water pumping pipe 14 is fixedly connected to the upper part of the water tank 4, and the lower end extends to the bottom of the water tank 4, the water outlet end of the water pump 13 is fixedly connected to a connecting pipe 15, and the other end of the connecting pipe 15 is fixedly connected to the U-shaped nozzle 16; during operation, when the polystyrene material is granulated, the water pump 13 is started, and the water pump 13 draws out the cooling water from the bottom of the water tank 4 through the water pumping pipe 14, and then pumps it into the U-shaped nozzle 16 through the connecting pipe 15, and sprays it into the cooling trough 5 through the nozzle on the U-shaped nozzle 16 to cool the polystyrene particles in the cooling trough 5.

[0024] The air drying box 7 is provided with an air inlet on the top, and a wind tube 10 is fixedly installed on the air inlet. A fan 12 is fixedly installed inside the wind tube 10 through a fixed bracket 11, and a plurality of air holes are provided on the air inlet end of the wind tube 10. During operation, when the polystyrene material is granulated, the fan 12 fixed in the wind tube 10 through the fixed bracket 11 is started, and the blades on the fan 12 rotate to form a negative pressure inside the wind tube 10, and the outside air is sucked in through the air holes at the air inlet end of the wind tube 10 to air-dry the polystyrene particles in the lifting cylinder 6 with the water filter hole.

[0025] A lifting motor 8 is fixedly installed on one side of the air drying box 7, and the rotating shaft of the lifting motor 8 is fixedly connected to one end of the auger 9; during operation, when the polystyrene material is granulated, the lifting motor 8 is started, and the rotating shaft of the lifting motor 8 drives the auger 9 to rotate, thereby lifting the polystyrene particles in the bottom of the cooling tank 5 and the cooling water into the air drying box 7 at the same time, and then the cooling water is filtered out in the air drying box 7, and the filtered polystyrene particles are air-dried.

[0026] A vibration motor 25 is fixedly mounted at one end of the screening box 18, and a gear 26 is fixedly mounted on the rotating shaft of the vibration motor 25. The teeth on the gear 26 engage with the teeth on the turntable 24. During operation, when the polystyrene material is granulated, the vibration motor 25 is started, and the rotating shaft of the vibration motor 25 drives the gear 26 to rotate. The gear 26 drives the connecting shaft 23 and the other turntable 24 to rotate through the teeth on the turntable 24, so that the sieve plate 20 moves back and forth in the screening box 18 to screen the polystyrene particles.

[0027] The screening box 18 is provided with a chute on one side and the other end of the box body, and drawers 27 are slidably installed in the chute, and the two drawers 27 are respectively arranged on both sides of the partition 28; during operation, when the polystyrene material is granulated, a part of the screened polystyrene particles pass through the sieve holes on the sieve plate 20 and fall into the drawer 27 on one side of the partition 28, and the other part of the particles larger than the sieve holes slide through the lower end of the sieve plate 20 and fall into the drawer 27 at the other end of the screening box 18.

[0028] Working principle: when granulating polystyrene material, start the granulator 1 to melt and extrude the polystyrene material, then start the cutting machine 3 on the fixed seat 2 to cut the strip polystyrene extruded from the extrusion end of the granulator 1, and the cut particles fall into the cooling tank 5 below under the action of gravity, start the water pump 13 to inject cooling water into the U-shaped nozzle 16 through the water pipe 14 and the connecting pipe 15, and the cooling water is sprayed from the nozzle to cool the particles in the cooling tank 5, and at the same time start the lifting motor 8 to drive the auger 9 to rotate, and the spiral on the auger 9 drives the cooling water and particles to move in the lifting cylinder 6 and enter the air drying box 7, and then drain and air dry in the air drying box 7. The particles are dried and then enter the upper part of the sieve plate 20 in the screening box 18 through the discharge pipe 17, and the vibration motor 25 is started. The rotating shaft of the vibration motor 25 drives the gear 26 to rotate, and the gear 26 drives the connecting shaft 23 and the other turntable 24 to rotate at the same time through the tooth groove on the turntable 24. The turntable 24 drives the slide bar 21 to slide back and forth in the slide rail through the connecting rod 22. At the same time, the slide bar 21 drives the sieve plate 20 to slide back and forth in the screening box 18 to screen the particles thereon. A part of the screened polystyrene particles passes through the sieve holes on the sieve plate 20 and falls into the drawer 27 on one side of the partition 28, while the other part of the particles larger than the sieve holes slides through the lower end of the sieve plate 20 into the drawer 27 at the other end of the screening box 18.

[0029] Throughout this specification, references to terms such as "one embodiment," "example," or "specific example" indicate that a specific feature, structure, material, or characteristic described in conjunction with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, schematic representations of these terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

[0030] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are merely illustrative of the principles of the present invention. Various changes and improvements may be made to the present invention without departing from the spirit and scope of the present invention, and such changes and improvements fall within the scope of the present invention as claimed.

Claims

1. A polystyrene granulation and cooling device, characterized in that: The invention comprises a granulator (1); a fixing seat (2) is fixedly installed on the platform of the extrusion end of the granulator (1); a cutting machine (3) is fixedly installed on the upper part of the fixing seat (2); a water tank (4) is provided on one side of the granulator (1); a cooling trough (5) is fixedly installed on the upper part of one end of the water tank (4); a mounting hole is provided on the trough body of one side of the cooling trough (5); the extrusion end of the granulator (1) is arranged in the mounting hole; a lifting cylinder (6) is fixedly installed on the bottom of the cooling trough (5); the lifting cylinder (6) is fixedly installed on the bottom of the cooling trough (5); The cylinder (6) is tilted, a water outlet is provided on the upper part of the water tank (4), and an air drying box (7) is fixedly installed on the water outlet. The upper end of the lifting cylinder (6) is arranged in the air drying box (7), and a plurality of water filter holes are provided in an array on the outer periphery. A discharge pipe (17) is fixedly connected to the lower side of the upper end of the lifting cylinder (6), and the other end of the discharge pipe (17) passes through the air drying box (7). An auger (9) is provided in the lifting cylinder (6), and both ends of the auger (9) are rotatably mounted on the lifting cylinder (6) through bearings. A screening box (18) is provided on one side of the air drying box (7) and is fixedly installed on the top of the water tank (4). Slide holes are provided on both sides of the box body of the screening box (18). Slide rails are fixedly installed on the outside of the slide holes. Slide rods (21) are slidably installed in the slide rails. Bosses (19) are fixedly installed on both sides of the interior of the screening box (18). A sieve plate (20) is tilted on the upper part of the boss (19). One end of the slide rod (21) is fixedly installed on both sides of the sieve plate (20) through a shaft, and the shaft is in the slide hole. The sliding rod (21) is rotatably mounted on the outer side of the other end thereof, and a connecting shaft (23) is rotatably mounted inside one end of the screening box (18). Both ends of the connecting shaft (23) pass through the screening box (18) and are fixedly mounted with a turntable (24). A plurality of tooth grooves are arrayed on the circumference of one of the turntables (24). The other ends of the connecting rods (22) are rotatably mounted on the outer edge of the turntable (24), and a partition (28) is fixedly mounted inside the screening box (18).

2. The polystyrene granulation and cooling device according to claim 1, characterized in that: A U-shaped nozzle (16) is fixedly installed on one side of the cooling trough (5), and both ends of the U-shaped nozzle (16) pass through the side wall of the cooling trough (5) and are fixedly installed with multiple nozzles. A water pump (13) is fixedly installed on one side of the upper part of the water tank (4), and the water inlet end of the water pump (13) is fixedly connected to a water pumping pipe (14). The other end of the water pumping pipe (14) is fixedly connected to the upper part of the water tank (4), and the lower end extends to the bottom of the water tank (4). The water outlet end of the water pump (13) is fixedly connected to a connecting pipe (15), and the other end of the connecting pipe (15) is fixedly connected to the U-shaped nozzle (16).

3. The polystyrene granulation and cooling device according to claim 1, characterized in that: The top of the air drying box (7) is provided with an air inlet, on which a wind tube (10) is fixedly mounted, and inside the wind tube (10) a fan (12) is fixedly mounted via a fixing bracket (11), and a plurality of air holes are provided on the air inlet end of the wind tube (10).

4. The polystyrene granulation and cooling device according to claim 1, characterized in that: A lifting motor (8) is fixedly mounted on one side of the air drying box (7), and a rotating shaft of the lifting motor (8) is fixedly connected to one end of the auger (9).

5. The polystyrene granulation and cooling device according to claim 1, characterized in that: A vibration motor (25) is fixedly mounted on one end of the screening box (18), a gear (26) is fixedly mounted on the rotating shaft of the vibration motor (25), and the teeth on the gear (26) are meshed with the teeth on the turntable (24).

6. The polystyrene granulation and cooling device according to claim 1, characterized in that: A slide groove is provided on one side and the other end of the screening box (18), and drawers (27) are slidably installed in the slide groove, and two drawers (27) are respectively arranged on both sides of the partition (28).

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