Efficient plastic particle granulating device

Abstract

The utility model discloses an efficient plastic particle granulating device which comprises an extruder, a water tank, a shearing device and a water throwing device, the extruder is connected with the shearing device through the water tank, and the water throwing device is connected to one side of the shearing device; the shearing device comprises a water tank, a lower shearing roller, an upper shearing roller, gears and a shearing motor, the lower shearing roller and the upper shearing roller are symmetrically and movably connected into the water tank, and the two gears meshed with each other are connected to one end of the lower shearing roller and one end of the upper shearing roller. The shearing motor is installed on the water tank, a power rod is connected with one end of the lower shearing roller or one end of the upper shearing roller, and L-shaped shearing grooves are evenly formed in the lower shearing roller and the upper shearing roller. The efficient plastic particle granulating device is simple in structure, convenient to use and practical, and plastic particles which are attached to the conical screen in a high-speed dehydration state are blown down through the air blowing nozzle, so that the particles can be smoothly guided out through the discharging pipe.

Description

Technical Field

[0001] This utility model belongs to the field of granulation, and specifically relates to a high-efficiency plastic granulation device. Background Technology

[0002] Plastic pelletizing technology is not only a fundamental step in the plastics industry but also a key to achieving sustainable development. Through material innovation, equipment upgrades, and process optimization, this technology is driving the plastics industry towards high efficiency, environmental protection, and high-end development. Pelletizing involves melting and extruding polymer materials using an extruder, then cooling them with water to form strips of plastic. These strips are then cut into the desired plastic pellets, which are then dehydrated using a centrifuge or air-drying. The extruded material requires manual handling through a cooling water tank, which is extremely inconvenient. Furthermore, the plastic pellets splash during cutting, necessitating the installation of splash guards at the cutting device. However, the direct contact between the splash guards and the cutting device often results in plastic pellets getting stuck, causing equipment jams, and collecting these pellets is also extremely difficult. Utility Model Content

[0003] The technical problem to be solved by this utility model is to provide a high-efficiency plastic granulation device with a simple structure and convenient and practical design. The device blows down the plastic granules that are in a high-speed dehydration state and attached to the conical screen through the air nozzle, so that a number of granules can be smoothly discharged through the discharge pipe.

[0004] A high-efficiency plastic granulation device includes an extruder, a water tank, a shearing device, and a water-spraying device. The extruder is connected to the shearing device via the water tank, and the water-spraying device is connected to one side of the shearing device. The shearing device includes a water tank, a lower shearing roller, an upper shearing roller, gears, and a shearing motor. The lower and upper shearing rollers are symmetrically and movably connected within the water tank. Two meshing gears are connected to one end of the lower and upper shearing rollers. The shearing motor is mounted on the water tank, and its power rod is connected to one end of either the lower or upper shearing roller. L-shaped shearing grooves are evenly distributed on both the lower and upper shearing rollers. Shearing blades are installed inside the upper shearing roller. An overflow port is provided on the water tank and is located in the water-spraying device, higher than the lower shearing roller.

[0005] Preferably, the water-throwing device includes a motor, a conical screen, a discharge pipe, a water guide shell, a water outlet, and a fixed frame. The motor is mounted on a water tank and the power rod is connected to the conical screen. One end of the conical screen is connected to the discharge pipe. A bearing is sleeved on the discharge pipe. The bearing and the water guide shell are connected to the fixed frame. The conical screen is disposed inside the water guide shell, and the water outlet is connected to the water guide shell.

[0006] Preferably, the water guide shell is provided with a plurality of air nozzles.

[0007] Preferably, it also includes a cold water tank, a water pump and a circulation pipe. The end of the water tank near the extruder is connected to several duckbill-shaped nozzles. The water outlet is connected to the duckbill-shaped nozzles through the circulation pipe. The cold water tank and the water pump are installed on the circulation pipe.

[0008] Preferably, the bottom of the water tank is inclined.

[0009] Beneficial effects:

[0010] (1) The present invention provides a high-efficiency plastic granulation device with a simple structure and convenient use. The plastic granules in a high-speed dehydration state attached to the conical screen are blown off by the air nozzle, so that a number of granules can be smoothly discharged through the discharge pipe.

[0011] (2) The present invention provides a high-efficiency plastic pelletizing device, which sprays cooling water through a duckbill-shaped nozzle, so that the cooling water forms a flowing water film in the water tank, thereby achieving the purpose of pulling the plastic strip through the water film.

[0012] (3) The present invention provides a high-efficiency plastic granulation device, which controls the height of the overflow port so that the sheared plastic granules are in cooling water, thereby preventing the plastic granules from splashing during shearing. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the structure of a high-efficiency granulation device;

[0014] Figure 2 This is a schematic diagram of the shearing device;

[0015] 1-Extruder, 2-Water tank, 3-Shearing device, 31-Water tank, 32-Lower shearing roller, 33-Upper shearing roller, 34-L-shaped shearing groove, 35-Shearing blade, 4-Water-throwing device, 41-Motor, 42-Conical screen, 43-Discharge pipe, 44-Bearing, 45-Water guide shell, 46-Water outlet. Detailed Implementation

[0016] The embodiments of this utility model are further described below with reference to the accompanying drawings.

[0017] Example 1

[0018] like Figures 1 to 2As shown; a high-efficiency plastic granulation device includes an extruder 1, a water tank 2, a shearing device 3, and a water-spraying device 4. The extruder 1 is connected to the shearing device 3 via the water tank 2, and the water-spraying device 4 is connected to one side of the shearing device 3. The shearing device 3 includes a water tank 31, a lower shearing roller 32, an upper shearing roller 33, gears, and a shearing motor. The lower shearing roller 32 and the upper shearing roller 33 are symmetrically and movably connected inside the water tank 31. Two meshing gears are connected to one end of the lower shearing roller 32 and the upper shearing roller 33. The shearing motor is mounted on the water tank 31, and its power rod is connected to one end of the lower shearing roller 32 or the upper shearing roller 33. L-shaped shearing grooves 34 are evenly opened on the lower shearing roller 32 and the upper shearing roller 33. Shearing blades 35 are installed inside the upper shearing roller 33. An overflow port is provided on the water tank 31. The water-throwing device 4 is located above the lower shear roller 32. The water-throwing device 4 includes a motor 41, a conical screen 42, a discharge pipe 43, a water guide shell 45, a water outlet 46, and a fixed frame. The motor 41 is mounted on the water tank 31 and the power rod is connected to the conical screen 42. One end of the conical screen 42 is connected to the discharge pipe 43. A bearing 44 is fitted on the discharge pipe 43. The bearing 44 and the water guide shell 45 are connected to the fixed frame. The conical screen 42 is located inside the water guide shell 45. The water outlet 46 is connected to the water guide shell 45. Several air nozzles 47 are provided on the water guide shell 45. The device also includes a cold water tank, a water pump, and a circulation pipe. Several duckbill-shaped nozzles are connected to one end of the water tank 2 near the extruder 1. The water outlet 46 is connected to the duckbill-shaped nozzles through the circulation pipe. The cold water tank and the water pump are located on the circulation pipe. The bottom of the water tank 2 is inclined.

[0019] Plastic strips are extruded through extruder 1. After extrusion, the plastic strips come into contact with cooling water sprayed from a duckbill-shaped nozzle. The plastic strips are drawn into the space between the lower shear roller 32 and the upper shear roller 33 by the sprayed cooling water. The upper shear roller 33 is driven to rotate by a shearing motor. The transmission between the lower shear roller 32 and the upper shear roller 33 is through gears. When the lower shear roller 32 and the upper shear roller 33 roll, the shearing blades 35 on the L-shaped shearing groove 34 cut the plastic strip, achieving the purpose of cutting the plastic strip into plastic granules. The cut plastic granules flow with the cooling water. The plastic granules and cooling water enter the conical screen 42 through the overflow port. The conical screen 42 is driven by motor 41, causing the plastic granules on it to... The material granules are rapidly dehydrated. During dehydration, the air delivered through the air nozzle 47 blows down the plastic granules adhering to the conical screen 42. The inclined design of the conical screen 42 causes the blown-down plastic granules to fall at an angle close to the discharge pipe 43. The plastic granules are circulated through several air nozzles 47 until they enter the discharge pipe 43 and are discharged. The water delivered from the overflow port and the water from the dehydration of the plastic granules fall into the water guide shell 45 and then enter the cold water tank through the water outlet 46 and the circulation pipe. Finally, the cooling water is pumped into the duckbill-shaped nozzle through the circulation pipe and discharged. This cycle is repeated to cool and guide the plastic strip. The inclined bottom of the water tank 2 makes the flow of cooling water sprayed from the duckbill-shaped nozzle smoother.

[0020] The specific embodiments of this utility model have been described in detail above, but they are merely examples, and this utility model is not limited to the specific embodiments described above. For those skilled in the art, any equivalent modifications and substitutions to this utility model are also within the scope of this utility model. Therefore, all equivalent changes and modifications made without departing from the spirit and scope of this utility model are covered within the scope of this utility model.

Claims

1. A high-efficiency plastic pelletizing device, characterized in that: The device includes an extruder (1), a water tank (2), a shearing device (3), and a water-spraying device (4). The extruder (1) is connected to the shearing device (3) via the water tank (2), and the water-spraying device (4) is connected to one side of the shearing device (3). The shearing device (3) includes a water tank (31), a lower shearing roller (32), an upper shearing roller (33), gears, and a shearing motor. The lower shearing roller (32) and the upper shearing roller (33) are symmetrically and movably connected in the water tank (31), and two meshing gears are connected to the lower shearing roller. On one end of the cutting roller (32) and the upper shearing roller (33), the shearing motor is installed on the water tank (31) and the power rod is connected to one end of the lower shearing roller (32) or the upper shearing roller (33). The lower shearing roller (32) and the upper shearing roller (33) are evenly provided with L-shaped shearing grooves (34). The upper shearing roller (33) of the upper shearing roller (33) is provided with shearing blades (35). The water tank (31) is provided with an overflow port. The overflow port is located in the water-throwing device (4) and is higher than the lower shearing roller (32).

2. The high-efficiency plastic pelletizing device as described in claim 1, characterized in that: The water-throwing device (4) includes a motor (41), a conical screen (42), a discharge pipe (43), a water guide shell (45), a water outlet (46), and a fixing frame. The motor (41) is installed on the water tank (31) and the power rod is connected to the conical screen (42). One end of the conical screen (42) is connected to the discharge pipe (43). A bearing (44) is sleeved on the discharge pipe (43). The bearing (44) and the water guide shell (45) are connected to the fixing frame. The conical screen (42) is set inside the water guide shell (45). The water outlet (46) is connected to the water guide shell (45).

3. The high-efficiency plastic pelletizing device as described in claim 2, characterized in that: The water guide shell (45) is provided with several air nozzles (47).

4. The high-efficiency plastic pelletizing device as described in claim 3, characterized in that: It also includes a cold water tank, a water pump and a circulation pipe. The end of the water tank (2) near the extruder (1) is connected to several duckbill-shaped nozzles. The water outlet (46) is connected to the duckbill-shaped nozzles through the circulation pipe. The cold water tank and the water pump are installed on the circulation pipe.

5. The high-efficiency plastic pelletizing device as described in claim 4, characterized in that: The bottom of the water tank (2) is inclined.

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