A device for rapid cooling of plastic particles

Abstract

This utility model relates to the field of plastic granule processing technology and discloses a rapid cooling device for plastic granules. The device includes a tank with an inlet on one side of the top and an exhaust port on the same side. It also includes a uniform cooling mechanism, which comprises a fixed plate at the bottom of the tank interior. A turntable is rotatably mounted on the top of the fixed plate, and multiple sets of hollow columns are equidistantly mounted on the top of the turntable. Multiple sets of perforated plates communicating with the interior of the hollow columns are equidistantly mounted on the surface of each hollow column. Cold air enters the hollow columns through a rotary joint and cools the plastic granules inside the tank through the perforated plates. A servo motor drives a transmission wheel to rotate, and friction drives the turntable and hollow columns to rotate, stirring the granules and increasing the contact area between the cold air and the granules, thus achieving uniform cooling and solving the cooling problem caused by small contact area.

Description

Technical Field

[0001] This utility model relates to the field of plastic granule processing technology, specifically to a rapid cooling device for plastic granules. Background Technology

[0002] In plastic granule processing, freshly produced granules are at high temperatures. If they are not cooled down in time, on the one hand, the high temperature will keep the granules soft for a long time, making them prone to sticking together and affecting subsequent processing and use. On the other hand, continuous high temperature will lead to the deterioration of the performance of plastic granules, such as a decrease in mechanical properties. When plastic granules are extruded from the extruder or after the plasticizing process is completed, a plastic granule rapid cooling device is needed to cool them down to ensure that the granules are quickly shaped and maintain good performance.

[0003] When cooling plastic granules, air cooling is used. However, due to the accumulation of plastic granules, the contact area between the cold air and the plastic granules is small, resulting in low cooling efficiency and uneven cooling. Therefore, there is an urgent need to develop a rapid cooling device for plastic granules to solve these practical problems. Utility Model Content

[0004] To address the shortcomings of existing technologies, this invention provides a rapid cooling device for plastic particles, which solves the problems of low cooling efficiency and uneven cooling caused by the small contact area between cold air and plastic particles due to the accumulation of plastic particles.

[0005] To achieve the above objectives, this utility model provides a rapid cooling device for plastic granules through the following technical solution: a tank body, wherein a feed inlet is provided on one side of the top of the tank body, and an exhaust port is provided on one side of the top of the tank body.

[0006] It also includes a uniform cooling mechanism, which includes a fixed plate located at the bottom of the tank body, a turntable rotatably mounted on the top of the fixed plate, multiple sets of hollow columns equidistantly mounted on the top of the turntable, multiple sets of perforated plates communicating with the interior of the hollow columns equidistantly mounted on the surface of the hollow columns, the bottom end of the hollow columns extending into the interior of the turntable and being fitted with a rotary joint through a pipe, an air inlet pipe rotatably mounted on the bottom end of the rotary joint, and a drive assembly providing power for the rotation of the turntable is also provided on one side of the bottom of the tank body.

[0007] Preferably, the drive assembly includes a servo motor disposed on one side of the bottom of the tank, the output end of the servo motor passing through the fixed disk and fixedly connected to the transmission wheel, and the transmission wheel being located on one side of the turntable and in contact with the turntable.

[0008] Preferably, a protective shell is also provided on the outer side of the top of the fixed disk, and the protective shell is located outside the transmission wheel.

[0009] Preferably, a threaded lifter for lifting plastic granules is provided at the top of the tank body, and an idle motor for providing power to the threaded lifter is installed at the top of the tank body.

[0010] Preferably, a mounting plate is fixedly connected to the front of the tank, and a controller is fixedly connected to the front of the mounting plate.

[0011] Preferably, it also includes a noise reduction and heat insulation mechanism, which includes a negative pressure box embedded in the inner wall of the tank, a negative pressure chamber is opened inside the negative pressure box, a one-way valve pipe that penetrates the inner wall of the tank is fixedly connected to the top of one side of the negative pressure box, and a vent pipe that penetrates the inner wall of the tank is fixedly connected to the bottom of one side of the negative pressure box.

[0012] This invention provides a rapid cooling device for plastic granules. Compared with the prior art, it has the following advantages.

[0013] 1. After the air inlet pipe is connected to the external air supply equipment, cold air enters the hollow column through the rotary joint and cools the plastic granules in the tank through the perforated plate. The servo motor drives the transmission wheel to rotate, and the friction transmission makes the turntable and hollow column rotate to stir the granules, increase the contact area between the cold air and the granules, achieve uniform cooling, and solve the cooling problem caused by the small contact area.

[0014] 2. The operator connects the external air extraction equipment to the one-way valve pipe to draw air from the negative pressure box and make the negative pressure chamber a vacuum. The vacuum negative pressure box can intercept the noise generated by the stirring of particles in the tank and the cold air passing through the gap, and can also isolate the external temperature to achieve temperature insulation and noise reduction. When the vacuum is released, simply open the vent pipe cover to allow outside air to enter. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the appearance of the present utility model;

[0016] Figure 2 This is a schematic diagram of the interior of the tank of this utility model;

[0017] Figure 3 This is a partial schematic diagram of the noise reduction and heat insulation mechanism of this utility model;

[0018] Figure 4 This is a partial cross-sectional schematic diagram of the tank body of this utility model;

[0019] Figure 5 This is a partial schematic diagram of the threaded lifting device of this utility model;

[0020] Figure 6 This is a partial schematic diagram of the uniform cooling mechanism of this utility model;

[0021] Figure 7 This is a partial cross-sectional schematic diagram of the uniform cooling mechanism of this utility model.

[0022] In the diagram: 1. Tank body; 101. Feed inlet; 2. Noise reduction and heat insulation mechanism; 201. Negative pressure box; 202. Negative pressure chamber; 203. One-way valve pipe; 204. Vent pipe; 3. Uniform cooling mechanism; 301. Fixed plate; 302. Turntable; 303. Hollow column; 304. Perforated plate; 305. Rotary joint; 306. Air inlet pipe; 307. Servo motor; 308. Transmission wheel; 309. Protective shell; 4. Idle motor; 401. Threaded lifter; 5. Controller. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0024] First implementation method:

[0025] refer to Figure 1-2 4-7, A rapid cooling device for plastic granules, comprising a tank 1, wherein a feed inlet 101 is provided on one side of the top of the tank 1, and an exhaust port is provided on one side of the top of the tank 1;

[0026] It also includes a uniform cooling mechanism 3, which includes a fixed plate 301 located at the bottom inside the tank 1. A turntable 302 is rotatably mounted on the top of the fixed plate 301. Multiple sets of hollow columns 303 are equidistantly mounted on the top of the turntable 302. Multiple sets of perforated plates 304 communicating with the interior of the hollow columns 303 are equidistantly mounted on the surface of the hollow columns 303. The bottom end of the hollow column 303 extends into the interior of the turntable 302 and is equipped with a rotary joint 305 through a pipe. An air inlet pipe 306 is rotatably mounted on the bottom end of the rotary joint 305. A drive component that provides power for the rotation of the turntable 302 is also provided on one side of the bottom of the tank 1.

[0027] The drive assembly includes a servo motor 307 located on one side of the bottom of the tank 1. The output end of the servo motor 307 passes through the fixed disk 301 and is fixedly connected to the transmission wheel 308. The transmission wheel 308 is located on one side of the turntable 302 and is in contact with the turntable 302.

[0028] A protective shell 309 is provided on the outer side of the top of the fixed plate 301, and the protective shell 309 is located outside the transmission wheel 308. A threaded lifter 401 for lifting plastic granules is provided on the top inside the tank body 1, and an idle speed motor 4 that provides power to the threaded lifter 401 is installed on the top of the tank body 1. A mounting plate is fixedly connected to the front of the tank body 1, and a controller 5 is fixedly connected to the front of the mounting plate.

[0029] After the plastic granules are conveyed into the tank 1 through the feed inlet 101, the operator controls the idle speed motor 4 to drive the threaded lifter 401 through the controller 5, thereby reciprocating the lifting of the plastic granules inside the tank 1, so as to facilitate the release of heat from the plastic granules and the exchange of temperature with the air inside the tank 1.

[0030] After the air inlet pipe 306 is connected to the external air supply equipment, cold air enters the hollow column 303 through the rotary joint 305 and is transported to the plastic particles stored in the tank 1 through the perforated plate 304 for heat dissipation and cooling.

[0031] The servo motor 307 drives the transmission wheel 308 to rotate. The transmission wheel 308 abuts against the turntable 302 to generate friction, which in turn drives the turntable 302 to rotate synchronously. The turntable 302 drives the hollow column 303 to rotate, which makes the hollow column 303 stir the plastic granules stored inside the tank 1. This increases the contact area between the cold air delivered through the hollow column 303 and the plastic granules stored inside the tank 1, achieving the function of uniform cooling of the plastic granules. This makes the cooling more uniform and solves the problem of low cooling efficiency and uneven cooling caused by the small contact area between the cold air and the plastic granules.

[0032] The protective shell 309 can intercept and isolate the plastic particles stored inside the tank 1, preventing the plastic particles from entering the contact area between the transmission wheel 308 and the turntable 302, which would cause blockage in the transmission of the transmission wheel 308 and the turntable 302.

[0033] Second implementation method:

[0034] When the plastic granules used for heat dissipation and cooling inside the device come into contact with cold air, the noise generated by the cold air passing through the gaps between the granules is transmitted to the surrounding environment, causing noise pollution.

[0035] refer to Figure 1-3 In the second embodiment of this utility model, a noise reduction and heat insulation mechanism 2 is also included. The noise reduction and heat insulation mechanism 2 includes a negative pressure box 201 embedded in the inner wall of the tank 1. A negative pressure chamber 202 is opened inside the negative pressure box 201. A one-way valve pipe 203 penetrating the inner wall of the tank 1 is fixedly connected to the top of one side of the negative pressure box 201, and a vent pipe 204 penetrating the inner wall of the tank 1 is fixedly connected to the bottom of one side of the negative pressure box 201.

[0036] After the operator connects the external air extraction equipment to the one-way valve pipe 203, the air inside the negative pressure box 201 is extracted, causing the air inside the negative pressure chamber 202 to be discharged, thus creating a vacuum state. The negative pressure box 201 in the vacuum state can intercept the noise generated by the stirring particles and cold air passing through the gaps between the particles inside the tank 1. At the same time, the negative pressure box 201 in the vacuum state can isolate the external temperature, thus achieving the function of temperature insulation and noise reduction.

[0037] When it is necessary to release the vacuum inside the negative pressure chamber 201, the operator can open the cover of the vent pipe 204 to allow outside air to enter the negative pressure chamber 201, thereby releasing the vacuum inside the negative pressure chamber 202.

[0038] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A rapid cooling device for plastic granules, comprising a tank (1), wherein a feed inlet (101) is provided on one side of the top of the tank (1), and an exhaust port is provided on one side of the top of the tank (1), characterized in that: It also includes a uniform cooling mechanism (3), which includes a fixed plate (301) located at the bottom inside the tank (1). A turntable (302) is rotatably mounted on the top of the fixed plate (301). Multiple sets of hollow columns (303) are equidistantly mounted on the top of the turntable (302). Multiple sets of perforated plates (304) communicating with the inside of the hollow column (303) are equidistantly mounted on the surface of the hollow column (303). The bottom end of the hollow column (303) extends into the inside of the turntable (302) and is equipped with a rotary joint (305) through a pipe. An air inlet pipe (306) is rotatably mounted on the bottom end of the rotary joint (305). A drive assembly that provides power for the rotation of the turntable (302) is also provided on one side of the bottom of the tank (1).

2. The rapid cooling device for plastic granules according to claim 1, characterized in that: The drive assembly includes a servo motor (307) located on one side of the bottom of the tank (1). The output end of the servo motor (307) passes through the fixed disk (301) and is fixedly connected to the transmission wheel (308). The transmission wheel (308) is located on one side of the turntable (302) and is in contact with the turntable (302).

3. The rapid cooling device for plastic granules according to claim 2, characterized in that: A protective shell (309) is also provided on the outer side of the top of the fixed plate (301), and the protective shell (309) is located outside the transmission wheel (308).

4. The rapid cooling device for plastic granules according to claim 1, characterized in that: The top of the tank (1) is provided with a threaded lifter (401) for lifting plastic granules, and an idle motor (4) is installed on the top of the tank (1) to provide power to the threaded lifter (401).

5. The rapid cooling device for plastic granules according to claim 1, characterized in that: The tank body (1) is fixedly connected to a mounting plate on the front, and a controller (5) is fixedly connected to the front of the mounting plate.

6. The rapid cooling device for plastic granules according to claim 1, characterized in that: It also includes a noise reduction and heat insulation mechanism (2), which includes a negative pressure box (201) embedded in the inner wall of the tank (1), a negative pressure chamber (202) is provided inside the negative pressure box (201), a one-way valve pipe (203) that penetrates the inner wall of the tank (1) is fixed to the top of one side of the negative pressure box (201), and a vent pipe (204) that penetrates the inner wall of the tank (1) is fixed to the bottom of one side of the negative pressure box (201).

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