Plastic particle rapid cooling device

Abstract

The utility model relates to the technical field of plastic particles, in particular to a plastic particle rapid cooling device which comprises a cooling box, a feeding pipe is embedded in the top of the cooling box, a connecting rod is movably installed in the feeding pipe, and two sets of paddles are installed on the outer side of the connecting rod in an annular array mode. An air pump is installed on the side face of the cooling box, an air suction pipe is installed at the bottom of the air pump, an air outlet pipe is installed at the top of the air pump, two connecting pipes are installed in the air outlet pipe in an embedded mode, and the ends, away from the air outlet pipe, of the two connecting pipes extend into the feeding pipe; stirring rods are mounted on the outer side of the section, extending into the cooling box, of the fixed rod in an annular array manner. The plastic particle cooling device has the advantages that the pressure in the cooling box is reduced, and meanwhile, the plastic particles adhered together are scattered by utilizing high-pressure gas, so that the plastic particles are prevented from being in uniform contact with cold air.

Description

Technical Field

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

[0002] Plastic particles are small granules made from plastic raw materials through processing. They are commonly used in molding processes such as injection molding, extrusion, and blow molding, and are the basic material for the production of plastic products. Plastic particle cooling devices are equipment used to cool plastic particles. Their main function is to quickly cool the high-temperature plastic particles for subsequent processing and packaging. Plastic particle cooling devices are widely used in the plastic processing industry, especially in processes such as extrusion molding and injection molding, to cool plastic particles and ensure the stability of their quality and shape.

[0003] When cold air is supplied into the cooling structure to cool the plastic particles, the pressure inside the cooling structure gradually increases with the flow rate of the supplied cold air. The common way to relieve pressure is to directly discharge the excess gas inside the cooling structure to achieve gas flow inside the cooling structure. However, the discharged gas cannot be reused, resulting in waste. Utility Model Content

[0004] The purpose of this invention is to provide a rapid cooling device for plastic particles, which has the advantages of reducing the pressure inside the cooling box while using high-pressure gas to break up the plastic particles that are stuck together, thus preventing the plastic particles from not being able to contact the cold air evenly. It also solves the problem that the gas discharged from the cooling device cannot be reused when the pressure is released.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a rapid cooling device for plastic particles, comprising a cooling box, a feed pipe embedded in the top of the cooling box, a connecting rod movably installed inside the feed pipe, two sets of paddles arranged in a ring array on the outer side of the connecting rod, an air pump installed on the side of the cooling box, an air suction pipe installed at the bottom of the air pump, an air outlet pipe installed at the top of the air pump, two connecting pipes embedded in the air outlet pipe, the ends of the two connecting pipes opposite to the air outlet pipe extending into the feed pipe, a fixing rod movably installed in the cooling box, and a stirring rod arranged in a ring array on the outer side of a section of the fixing rod extending into the cooling box.

[0006] Preferably, an air inlet pipe is embedded in the top of the cooling box on one side of the feed pipe.

[0007] Preferably, guide vanes are installed at equal intervals on both sides of the interior of the cooling box above the fixing rod.

[0008] Preferably, a motor is installed on the side of the cooling box away from the air pump, and the motor transmission structure is fixedly connected to the fixing rod.

[0009] Preferably, a fixed shell is embedded in the side of the cooling box below the air pump, the fixed shell is connected to the inside of the cooling box, and the bottom of the air intake pipe extends into the fixed shell.

[0010] Preferably, a discharge pipe is embedded in the middle of the bottom of the cooling box, and the interior of the cooling box above the discharge pipe slopes from both sides towards the middle.

[0011] Preferably, support plates are welded to both sides of the bottom of the cooling box, and the two support plates are perpendicular to the bottom of the cooling box.

[0012] Preferably, a mesh frame is embedded in the side of the feed pipe opposite to the air outlet pipe, and the mesh frame is provided with mesh holes.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] This invention, by setting up connecting pipes and blades, allows the gas pressure inside the cooling chamber to gradually increase during the cooling process. Excess gas inside the cooling chamber enters the fixed shell, where an air pump draws in gas through the suction pipe. The air pump accelerates the gas and delivers it to two connecting pipes through the outlet pipe. The two connecting pipes blow the gas towards two sets of blades outside the connecting rod inside the feed pipe, causing the blades to rotate. During rotation, the blades strike the plastic particles inside the feed pipe, breaking up any particles that are stuck together. The broken-up plastic particles then enter the cooling chamber, where the cooled plastic particles are discharged from the outlet pipe at the bottom. This achieves the effect of reducing the pressure inside the cooling chamber while using high-pressure gas to break up the stuck-together plastic particles, preventing the plastic particles from not being evenly exposed to the cold air. Attached Figure Description

[0015] Figure 1 This is a three-dimensional structural diagram of the present invention from a first angle;

[0016] Figure 2 This is a two-dimensional structural diagram of the present invention from a second angle;

[0017] Figure 3 This is a cross-sectional view of the cooling box structure of this utility model;

[0018] Figure 4 This is a cross-sectional view of the feed pipe of this utility model.

[0019] In the diagram: 1. Support plate; 2. Cooling box; 3. Air outlet pipe; 4. Feed pipe; 5. Grid frame; 6. Air inlet pipe; 7. Motor; 8. Discharge pipe; 9. Fixed shell; 10. Suction pipe; 11. Air pump; 12. Connecting pipe; 13. Fixed rod; 14. Stirring rod; 15. Guide plate; 16. Paddle; 17. Connecting rod. Detailed Implementation

[0020] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.

[0021] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Those skilled in the art can make similar extensions without departing from the spirit of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0022] Secondly, this utility model is described in detail with reference to the schematic diagrams. When describing the embodiments of this utility model, for ease of explanation, the cross-sectional views illustrating the device structure may be partially enlarged, not adhering to the usual scale. Furthermore, the schematic diagrams are merely examples and should not limit the scope of protection of this utility model. In addition, actual manufacturing should include the three-dimensional spatial dimensions of length, width, and depth.

[0023] To make the objectives, technical solutions, and advantages of this utility model clearer, the embodiments of this utility model will be described in further detail below with reference to the accompanying drawings.

[0024] Example 1

[0025] like Figures 1-4As shown, the rapid cooling device for plastic particles proposed in this utility model includes a cooling box 2. A feed pipe 4 is embedded in the top of the cooling box 2. An air inlet pipe 6 is embedded in the top of the cooling box 2 on one side of the feed pipe 4. The air inlet pipe 6 is connected to a pipe for conveying cold air, which enters the interior of the cooling box 2 through the air inlet pipe 6. A connecting rod 17 is movably installed inside the feed pipe 4. Two sets of blades 16 are installed in a circular array on the outer side of the connecting rod 17. An air pump 11 is installed on the side of the cooling box 2. An air suction pipe 10 is installed at the bottom of the air pump 11. A fixed shell 9 is embedded in the side of the cooling box 2 below the air pump 11. The fixed shell 9 is connected to the interior of the cooling box 2. The bottom of the suction pipe 10 extends into the interior of the fixed shell 9, allowing gas from inside the cooling box 2 to enter the fixed shell 9. The air pump 11 draws gas from inside the fixed shell 9 through the suction pipe 10. The fixed shell 9 is tilted at a large angle to prevent plastic particles from inside the cooling box 2 from entering the fixed shell 9. An exhaust pipe 3 is installed on the top of the air pump 11, with two connecting pipes 12 embedded in it. The ends of the two connecting pipes 12 facing away from the exhaust pipe 3 extend into the feed pipe 4. A fixing rod 13 is movably installed in the cooling box 2, and a fixing rod 13 is installed on the side of the cooling box 2 facing away from the air pump 11. Equipped with a motor 7, the motor 7's transmission structure is fixedly connected to the fixed rod 13. The motor 7 drives the fixed rod 13 to rotate via the transmission structure. Inside the cooling box 2 above the fixed rod 13, guide plates 15 are equidistantly installed on both sides. To ensure that the plastic particles can slide smoothly on the guide plates 15, the angle of the guide plates 15 is between 30° and 60°. Within this range, the guide plates 15 can effectively utilize gravity to make the plastic particles slide down, preventing accumulation. The plastic particles entering the cooling box 2 from the feed pipe 4 can move downwards along the guide plates 15 on both sides. Within a limited space, the travel distance of the plastic particles is increased, extending the contact time between the plastic particles and the cold air. A stirring rod 14 is installed in a circular array on the outer side of a section of the fixing rod 13 extending into the cooling box 2. A discharge pipe 8 is embedded in the middle of the bottom of the cooling box 2. The interior of the cooling box 2 above the discharge pipe 8 slopes from both sides to the middle. The plastic particles inside the cooling box 2 enter the discharge pipe 8 along the bottom slope and are discharged from the discharge pipe 8. Support plates 1 are welded to both sides of the bottom of the cooling box 2. The two support plates 1 are perpendicular to the bottom of the cooling box 2 and provide support for the cooling box 2.

[0026] Example 2

[0027] like Figures 1-4 As shown, the rapid cooling device for plastic particles proposed in this utility model, compared with Embodiment 1, further includes: a grid frame 5. The grid frame 5 is embedded and installed on the side of the feed pipe 4 away from the air outlet pipe 3. The grid frame 5 is provided with mesh holes. The gas inside the feed pipe 4 can be discharged outward from the mesh holes of the grid frame 5. The grid frame 5 blocks the plastic particles inside the feed pipe 4.

[0028] Working principle: The air inlet pipe 6 is connected to the pipe that delivers cold air. The cold air enters the cooling box 2 through the air inlet pipe 6. Plastic particles enter the cooling box 2 through the feed pipe 4. The plastic particles inside the cooling box 2 move downwards along the guide plate 15. During this movement, the cold air inside the cooling box 2 lowers the temperature of the plastic particles. The motor 7 drives the fixed rod 13 to rotate through the transmission structure. The fixed rod 13 drives the stirring rod 14 to rotate. The stirring rod 14 mixes the plastic particles falling to the bottom of the cooling box 2, preventing the plastic particles from accumulating and ensuring that the plastic particles are in full contact with the cold air. During the cooling process, the gas pressure inside the cooling box 2 gradually... As the temperature gradually increases, the gas inside the cooling tank 2 enters the fixed shell 9. The air pump 11 draws in the gas from the fixed shell 9 through the suction pipe 10. After accelerating the gas, the air pump 11 delivers the gas to the two connecting pipes 12 through the exhaust pipe 3. The two connecting pipes 12 blow the gas toward the two sets of blades 16 outside the connecting rod 17 inside the feed pipe 4, causing the two sets of blades 16 to rotate. During the rotation, the two sets of blades 16 will strike the plastic particles inside the feed pipe 4. The plastic particles that are stuck together are broken apart under the influence of the impact force. The broken plastic particles enter the cooling tank 2. The plastic particles that have been cooled inside the cooling tank 2 are discharged from the bottom discharge pipe 8.

[0029] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A device for rapid cooling of plastic particles, comprising a cooling tank (2), characterized in that: The top of the cooling box (2) is embedded with a feeding pipe (4), the inside of the feeding pipe (4) is movably installed with a connecting rod (17), the outside of the connecting rod (17) is annularly installed with two groups of paddles (16), the side of the cooling box (2) is installed with an air pump (11), the bottom of the air pump (11) is installed with a suction pipe (10), the top of the air pump (11) is installed with an air outlet pipe (3), the top of the air outlet pipe (3) is embedded with two connecting pipes (12), one end of the two connecting pipes (12) away from the air outlet pipe (3) extends into the inside of the feeding pipe (4), the cooling box (2) is movably installed with a fixing rod (13), the outside of the fixing rod (13) extending into the inside of the cooling box (2) is annularly installed with a stirring rod (14).

2. The apparatus for rapid cooling of plastic particles according to claim 1, characterized in that: The top of the cooling box (2) on one side of the feeding pipe (4) is embedded with an air inlet pipe (6).

3. The apparatus for rapid cooling of plastic particles according to claim 1, wherein: The inside of the cooling box (2) above the fixing rod (13) is installed with flow guides (15) at equal intervals on both sides.

4. The apparatus for rapidly cooling plastic pellets according to claim 1, wherein: The side of the cooling box (2) away from the air pump (11) is installed with a motor (7), the transmission structure of the motor (7) is fixedly connected with the fixing rod (13).

5. The apparatus for rapid cooling of plastic particles according to claim 1, wherein: The side of the cooling box (2) below the air pump (11) is embedded with a fixed shell (9), the fixed shell (9) is communicated with the inside of the cooling box (2), and the bottom of the suction pipe (10) extends into the inside of the fixed shell (9).

6. The apparatus for rapid cooling of plastic particles according to claim 1, wherein: The bottom of the cooling box (2) is embedded with a discharge pipe (8), the inside of the cooling box (2) above the discharge pipe (8) is inclined from both sides to the middle.

7. The apparatus for rapid cooling of plastic particles according to claim 1, wherein: The bottom of the cooling box (2) is welded with support plates (1) on both sides, and the two support plates (1) are perpendicular to the bottom of the cooling box (2).

8. The apparatus for rapid cooling of plastic particles according to claim 1, wherein: The side of the feeding pipe (4) away from the air outlet pipe (3) is embedded with a grid frame (5), and the grid frame (5) is provided with mesh holes.

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