Plastic production granulator

Abstract

The utility model relates to a plastic production granulator which comprises an extruder, a water tank, a water absorbing and wiping mechanism, an air dryer and a granulator, the extruder is used for heating and melting raw materials and extruding the raw materials to form plastic strips, the plastic strips fall into cooling water contained in the water tank to be cooled, and the water absorbing and wiping mechanism comprises a mounting frame, a movable frame, a mounting plate and a driving assembly. The number of the movable frames is two, the two movable frames are both movably connected with the installation frame and are arranged up and down, the two movable frames are both fixedly provided with an installation plate, the two installation plates are symmetrically arranged up and down, the opposite faces of the two installation plates are each detachably fixedly provided with a water absorption cotton towel, and the two movable frames are both connected with the driving assembly. The two movable frames are driven by the driving assembly to move, so that the two mounting plates are close to or far away from each other, the water absorption cotton towel makes contact with the cooled plastic strips to wipe and absorb water for the plastic strips, the air dryer is used for air-drying the plastic strips, the granulator is used for granulating the air-dried plastic strips, and the plastic strips are dried thoroughly.

Description

Technical Field

[0001] This application relates to the technical field of plastic production equipment, and more specifically, to a plastic production granulator. Background Technology

[0002] A plastic granulator (also known as a plastic pelletizer or plastic pellet mill) is a device used to process plastic raw materials into granules. This process is called granulation or pelletizing. Granulators are widely used in the plastics industry to process waste, recycled, or raw plastic materials into uniform granules for subsequent processing and applications.

[0003] In related technologies, plastic granulation machines mainly include extruders, cooling boxes, air dryers, and pelletizers. The extruder heats and melts the raw materials and extrudes the melted raw materials through the extrusion die to form multiple plastic strips. The plastic strips are cooled by cooling water in the cooling box, and then the plastic strips with the cooling water adhering to them are dried by the air dryer. Finally, the dried plastic strips are cut into plastic pellets by the pelletizer.

[0004] Using the aforementioned technologies, since the plastic strips move during the drying process, and the air blown out by the dryer is generally natural wind to avoid heating the plastic strips, the plastic strips may not be completely dry before being cut into plastic pellets by the pelletizer, thus affecting the quality of the plastic pellets. Utility Model Content

[0005] In order to solve the problem that plastic strips may not be completely dried when using a blower to dry them in related technologies, this application provides a plastic production granulator.

[0006] A plastic production granulator includes an extruder, the extruder being used to heat and melt raw materials and extrude them into plastic strips;

[0007] A water tank, with an opening at the top and located on the output side of the extruder, contains cooling water.

[0008] A water-absorbing and drying mechanism includes a mounting frame, a movable frame, a mounting plate, and a drive assembly. The mounting frame is located on the side of the water tank away from the extruder. There are two movable frames, each movably connected to the mounting frame and arranged vertically. Each movable frame has a mounting plate fixed on it, and the two mounting plates are arranged symmetrically vertically. A water-absorbing cotton towel can be detachably fixed on the facing side of each of the two mounting plates. Both movable frames are connected to the drive assembly, which drives the two movable frames to move so that the two mounting plates move closer together or further apart.

[0009] A drying machine, located on the side of the water-absorbing and wiping mechanism away from the water tank, is used to dry plastic strips;

[0010] A pelletizer, located on the side of the air dryer away from the water absorption and drying mechanism, is used to pelletize plastic strips.

[0011] Preferably, both sides of the two mounting plates facing each other are fixed with Velcro females by screws, and the absorbent cotton towel is sewn with Velcro males. The absorbent cotton towel is detachably connected to the mounting plate by the Velcro females and the Velcro males.

[0012] Preferably, the water-absorbing and drying mechanism further includes a water-receiving frame, which is located below the two mounting plates and placed on the mounting frame for support.

[0013] Preferably, the drive assembly includes two cylinders, both of which are fixed on the mounting bracket. One cylinder is connected to the upper movable bracket to drive the movable bracket to rise and fall, and the other cylinder is connected to the upper movable bracket to drive the movable bracket to rise and fall.

[0014] Preferably, the mounting bracket is rotatably provided with driven rollers on both the left and right sides of the mounting plate, and the two driven rollers are parallel and on the same horizontal plane.

[0015] This application includes at least one of the following beneficial technical effects:

[0016] 1. After the raw material is extruded into plastic strips by an extruder, the plastic strips are introduced into a water tank for cooling. After cooling, the plastic strips are introduced between two mounting plates. The drive assembly drives the two movable frames to move closer together, bringing the two mounting plates closer together. Absorbent cotton towels fixed on the two mounting plates hold the plastic strips and wrap them with their softness. The absorbent cotton towels wipe the plastic strips and absorb the water droplets. After the water droplets are absorbed, the plastic strips are further dried by a dryer and then granulated by a pelletizer to obtain plastic granules. The water absorption and wiping mechanism, together with the dryer, dries the plastic strips more thoroughly, making it easier to obtain high-quality plastic granules.

[0017] 2. The absorbent cotton towel is fixed to the mounting plate with Velcro, which makes it easy to quickly remove and replace the absorbent cotton towel. The absorbent cotton towel absorbs a certain amount of water. Replacing the absorbent cotton towel helps to reduce the situation where water overflows from the absorbent cotton towel and causes water to re-adhere to the plastic strip. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of a plastic granulator for production according to this embodiment.

[0019] Figure 2This is a schematic diagram of the water absorption and drying mechanism in this embodiment.

[0020] Figure 3 This is a schematic diagram of the connection structure between the mounting plate and the absorbent cotton towel in this embodiment.

[0021] Reference numerals: 1. Extruder; 2. Water tank; 3. Water absorption and drying mechanism; 31. Mounting frame; 311. Mounting platform; 312. Side plate; 313. Slide rail; 314. Slider; 315. Bracket; 316. Driven roller; 32. Movable frame; 321. Connecting block; 322. Crossbar; 33. Mounting plate; 331. Velcro female fastener; 34. Drive assembly; 341. Cylinder; 35. Absorbent cotton towel; 351. Velcro male fastener; 36. Water receiving frame; 4. Air dryer; 41. Machine base; 42. Connecting rod; 43. Air hood; 44. Fan; 45. Pressure roller; 5. Pelletizer. Detailed Implementation

[0022] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0023] Reference Figure 1 A plastic pelletizing machine includes an extruder 1, a water tank 2, a water-absorbing and drying mechanism 3, an air dryer 4, and a pelletizer 5. The water tank 2 is located on the output side of the extruder 1, the water-absorbing and drying mechanism 3 is located on the side of the water tank 2 away from the extruder 1, the air dryer 4 is located on the side of the water-absorbing and drying mechanism 3 away from the water tank 2, and the pelletizer 5 is located on the side of the air dryer 4 away from the water-absorbing and drying mechanism 3. The water tank 2 has an open top and is filled with cooling water. The extruder 1 heats and melts the plastic to form plastic strips, which then pass through the cooling water in the water tank 2. The plastic strip is cooled in water, and the water droplets on the plastic strip are wiped off by the water-absorbing and drying mechanism 3. Then, the plastic strip is dried in one step by the air dryer 4. Finally, the plastic strip is granulated by the pelletizer 5 to obtain plastic pellets. The pelletizer 5 is a pelletizer with a traction mechanism. The plastic strip is moved by the traction mechanism to realize the continuous cooling, drying and pelletizing operation of the plastic strip. The extruder 1 and the pelletizer 5 with the traction mechanism are existing technologies and will not be described in detail in this application.

[0024] Reference Figure 1 , Figure 2The water-absorbing and drying mechanism 3 includes a mounting frame 31, a movable frame 32, a mounting plate 33, and a drive assembly 34. The mounting frame 31 is located on the side of the water tank 2 away from the extruder 1. The mounting frame 31 includes a mounting platform 311, and a side plate 312 is erected on one side of the top surface of the mounting platform 311. The side plate 312 is parallel to the direction of movement of the plastic strip to avoid the movement of the plastic strip. A slide rail 313 is vertically installed on the side wall of the side plate 312, and two sliders 314 are slidably installed on the slide rail 313. There are two movable frames 32, one of which is a movable frame 34. 2. One movable frame 32 is connected and fixed to a slider 314, and the other movable frame 32 is connected and fixed to another slider 314, so that the two movable frames 32 are arranged vertically. The movable frame 32 includes a connecting block 321 and a crossbar 322. The connecting block 321 is connected to the slider 314, and one end of the crossbar 322 is fixedly connected to the connecting block 321. Each of the two crossbars 322 is fixed with a mounting plate 33. The two mounting plates 33 are arranged symmetrically vertically. An absorbent cotton towel 35 can be detachably fixed to the opposite side of each of the two mounting plates 33 for absorbing water. The cotton towel 35 is thickened to 2-5cm. The drive assembly 34 includes two cylinders 341, both of which are fixed to the side plate 312. One cylinder 341 is positioned above the two connecting blocks 321 and connected to the upper connecting block 321, driving the upper connecting block 321 to move up and down, thereby raising and lowering the upper mounting plate 33. The other cylinder 341 is positioned below the two connecting blocks 321 and connected to the lower connecting block 321, driving the lower connecting block 321 to move up and down. The lifting and lowering of the two connecting blocks 321 causes the two mounting plates 33 to move closer or further apart. When the two mounting plates 33 move closer, the absorbent cotton towel 35 fixed to the two mounting plates 33 clamps and wraps around the plastic strip. By moving the plastic strip, the absorbent cotton towel 35 wipes and absorbs the water droplets adsorbed on the outer wall of the plastic strip. The absorbent cotton towel 35 is a thickened cotton towel, which makes it easier for the absorbent cotton towel 35 to wrap around the plastic strip and contact all parts of the outer wall of the plastic strip to wipe and dry the water droplets on the outer wall of the plastic strip more thoroughly.

[0025] Reference Figure 3 Furthermore, both sides of the mounting plate 33 are fixed with Velcro female buckles 331 by screws, and the absorbent cotton towel 35 is sewn with Velcro male buckles 351. The absorbent cotton towel 35 is attached to the mounting plate 33 by the Velcro female buckle 331 and the Velcro male buckle 351, and is detachably connected to the mounting plate 33. The absorbent cotton towel 35 is fixed to the mounting plate 33 by Velcro, which facilitates the quick removal and replacement of the absorbent cotton towel 35. The absorbent cotton towel 35 absorbs a certain amount of water. Replacing the absorbent cotton towel 35 helps to reduce the situation where water overflows from the absorbent cotton towel 35 and causes secondary water to adhere to the plastic strip.

[0026] Reference Figure 1The mounting platform 311 has two brackets 315 on the top surface of the mounting plate 33, one on each side. Each bracket 315 has a driven roller 316 rotatably mounted on it. The two driven rollers 316 are parallel and on the same plane. The air dryer 4 includes a machine base 41. A connecting rod 42 is erected on the machine base 41. A fan hood 43 is fixed to the top of the connecting rod 42. A fan 44 (not shown in the figure) is installed inside the fan hood 43. A pressure roller 45 is rotatably mounted on the machine base 41. The height of the pressure roller 45 is lower than the height of the driven roller 316. The height of the water tank 2 is lower than the height of the driven roller 316. The fan hood 43 is above the pressure roller 45. The plastic strip is supported on the top surface of the driven roller 316 and pressed down by the pressure roller 45, so that the plastic strip can move horizontally on the mounting platform 311. This facilitates the clamping of the two absorbent cotton towels 35. The fan 44 blows air onto the plastic strip to further dry it.

[0027] Reference Figure 1 Furthermore, the water-absorbing and drying mechanism 3 also includes a water-receiving frame 36. The water-receiving frame 36 is placed on the top surface of the mounting platform 311 and is located between the two driven rollers 316 and directly below the two mounting plates 33. The water-receiving frame 36 is convenient for collecting water dripping from the plastic strip and the absorbent cotton towel 35, which helps to keep the working environment dry.

[0028] Although embodiments of this application have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of this application, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A plastic granulation machine, characterized in that: Includes an extruder used to heat and melt raw materials and extrude them into plastic strips; A water tank, with an opening at the top and located on the output side of the extruder, contains cooling water. A water-absorbing and drying mechanism includes a mounting frame, a movable frame, a mounting plate, and a drive assembly. The mounting frame is located on the side of the water tank away from the extruder. There are two movable frames, each movably connected to the mounting frame and arranged vertically. Each movable frame has a mounting plate fixed on it, and the two mounting plates are arranged symmetrically vertically. A water-absorbing cotton towel can be detachably fixed on the facing side of each of the two mounting plates. Both movable frames are connected to the drive assembly, which drives the two movable frames to move so that the two mounting plates move closer together or further apart. A drying machine, located on the side of the water-absorbing and wiping mechanism away from the water tank, is used to dry plastic strips; A pelletizer, located on the side of the air dryer away from the water absorption and drying mechanism, is used to pelletize plastic strips.

2. The plastic granulation machine according to claim 1, characterized in that: Both sides of the two mounting plates facing each other are fixed with Velcro females by screws. The absorbent cotton towel is sewn with Velcro males. The absorbent cotton towel is detachably connected to the mounting plate by the Velcro females and the Velcro males.

3. The plastic granulation machine according to claim 1, characterized in that: The water-absorbing and drying mechanism also includes a water-receiving frame, which is located below the two mounting plates and placed on the mounting frame for support.

4. A plastic granulation machine according to claim 1, characterized in that: The drive assembly includes two cylinders, both of which are fixed to the mounting bracket. One cylinder is connected to the upper movable bracket to drive the movable bracket to rise and fall, and the other cylinder is connected to the upper movable bracket to drive the movable bracket to rise and fall.

5. A plastic granulation machine according to claim 1, characterized in that: The mounting bracket is rotatably equipped with driven rollers on both the left and right sides of the mounting plate, and the two driven rollers are parallel and on the same horizontal plane.

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