A plastic particle dryer

By introducing stirring and cooling components into the plastic pellet dryer, and utilizing structures such as stirring rods, spiral blades, and cooling cylinders, the problem of additional cooling after drying in existing technologies has been solved, achieving efficient production through rapid drying and cooling.

CN224302568UActive Publication Date: 2026-05-29湖北奥嘉达模具科技有限公司

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
湖北奥嘉达模具科技有限公司
Filing Date
2025-05-06
Publication Date
2026-05-29

AI Technical Summary

Technical Problem

Existing plastic pellet dryers require additional cooling equipment after drying, resulting in low production efficiency.

Method used

A plastic granule dryer was designed, which includes a drying component and a cooling component. The dryer uses a stirring mechanism for stirring and heating, combined with a servo motor to drive the stirring rod and spiral blades to achieve rapid drying. The cooling component uses a vibrating motor and a cooler to prevent granules from accumulating and sticking together, thereby improving cooling efficiency.

Benefits of technology

This technology enables rapid drying and cooling of plastic granules, improving production efficiency, facilitating subsequent processing, and preventing uneven heating and accumulation.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of plastics processing, concretely to a kind of plastic granule drying machine, including base, drying assembly and cooling assembly are arranged on the base, the left and right sides of the base are provided with fixed bracket, the drying assembly is installed on the fixed bracket, the drying assembly includes drying cylinder, the side of the drying cylinder is provided with feed inlet, temperature sensor is arranged on the inner wall of the drying cylinder, the top of the drying cylinder is provided with servo motor, the output end of the servo motor is installed with stirring rod, stirring mechanism is arranged on the stirring rod, plastic granule is put into from feed inlet, drying is carried out in drying assembly, in the process of drying, granule is stirred by using stirring mechanism, so that granule can be fully dried.
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Description

Technical Field

[0001] This utility model relates to a plastic granule dryer, and more particularly to a plastic granule dryer, belonging to the field of plastic processing technology. Background Technology

[0002] Plastic granules are granular plastics produced during the manufacturing process of plastic products. They are usually made from recycled waste plastics. There are many types of plastic granules, including recycled PP granules, modified PP granules, and recycled ABS granules. In order to obtain high-performance and high-quality plastic products, the maximum allowable moisture content of plastic granules during molding is generally very low, so a dryer is needed to dry them.

[0003] Currently, there is a type of plastic granule dryer. A feeding pipe and a discharge pipe are fixedly connected to the surface of the drying chamber. A mounting plate, cylindrical in shape, is fixedly installed at one end of the discharge pipe. The surface of the mounting plate has annularly spaced through holes. A top plate is fixedly installed at one end of the drying chamber, and a motor is fixedly installed on the surface of the top plate. The aforementioned plastic granule dryer has the following drawbacks: after drying, the granules are directly discharged, requiring additional cooling equipment, resulting in low production efficiency.

[0004] Therefore, there is an urgent need to improve a plastic pellet dryer to solve the aforementioned problems. Utility Model Content

[0005] The purpose of this invention is to quickly dry plastic granules by setting up a drying component and a cooling component. After drying, the granules can be quickly cooled to facilitate subsequent processing and production. At the same time, the stirring mechanism can be used to stir the granules to prevent uneven heating inside the accumulated plastic granules, which would affect the drying effect.

[0006] To achieve the above objectives, the main technical solution adopted by this utility model is a plastic granule dryer, including...

[0007] Base;

[0008] Fixed brackets are provided on both sides of the base;

[0009] The drying assembly is set on the base and mounted on the fixed bracket. The drying assembly includes a drying cylinder with a feed inlet on one side. A temperature sensor is installed on the inner wall of the drying cylinder. A solenoid valve is installed at the bottom of the drying cylinder. A servo motor is installed at the top of the drying cylinder. A stirring rod is installed at the output end of the servo motor. A stirring mechanism is installed on the stirring rod.

[0010] The cooling assembly includes a cooling cylinder and a vibration motor. The vibration motor is symmetrically installed inside both sides of the base. The cooling cylinder is installed on the output end of the vibration motor via a bracket. The inlet of the cooling cylinder is connected to a solenoid valve via a hose. The outlet of the cooling cylinder is provided at the bottom.

[0011] Optionally, the stirring mechanism includes a mounting frame, a stirring paddle, and a spiral blade. The mounting frame is installed on the upper part of the stirring rod, the stirring paddle is arranged and installed at the bottom of the mounting frame, and the spiral blade is installed on the lower part of the stirring rod.

[0012] Optionally, the drying assembly also includes a heater, which is a ring structure mounted on the top of the mounting frame. Several sets of heat-conducting wires are arranged on the agitator, and the heat-conducting wires are electrically connected to the heater.

[0013] Optionally, the drying assembly also includes a dryer mounted on top of the base, with a dustproof plate at the air inlet of the dryer.

[0014] Optionally, the cooling assembly also includes a cooler fan, which is installed at the rear end of the base. A dustproof plate is provided at the air inlet of the cooler fan. An air outlet pipe is installed in the center of the interior of the cooling cylinder. Several air outlet holes are provided on the air outlet pipe. The air outlet pipe is connected to the cooler fan through a flexible hose. A baffle is provided on the inner wall of the cooling cylinder. The baffle is a spiral structure welded to the inner wall of the cooling cylinder.

[0015] Optionally, the dryer also includes a control console mounted on the front side of the base, which has a groove containing a collector.

[0016] This utility model has at least the following beneficial effects:

[0017] 1. Plastic granules are fed into the inlet and dried in the drying assembly. During the drying process, the granules are stirred by a stirring mechanism to ensure thorough drying. A servo motor drives the stirring rod to rotate, and the stirring paddle stirs the granules while the stirring rod rotates. At the same time, the spiral blades transport the granules from the bottom to the top, thereby improving the drying effect of the plastic granules. During the stirring process, a heater heats the heat-conducting wire, which can stir and dry the inner layer of granules, thereby improving the drying effect.

[0018] 2. By using a vibration motor to drive the cooling cylinder to vibrate, the particles can be prevented from accumulating together and sticking together. Cold air is injected into the cooling cylinder using a cold air blower and an air outlet pipe. By setting baffles, the movement time of the plastic particles in the cooling cylinder can be increased, thereby improving the cooling effect. Attached Figure Description

[0019] The accompanying drawings, which are included to provide a further understanding of this application and form part of this application, illustrate exemplary embodiments and are used to explain this application, but do not constitute an undue limitation of this application. In the drawings:

[0020] Figure 1 This is an overall structural diagram of the plastic granule dryer of this utility model;

[0021] Figure 2 This is a cross-sectional structural diagram of the drying cylinder of this utility model;

[0022] Figure 3 This is a structural diagram of the stirring mechanism of this utility model;

[0023] Figure 4 This is a structural diagram of the cooling component of this utility model.

[0024] In the diagram, 1. Base; 2. Fixed bracket; 3. Drying cylinder; 4. Dryer; 5. Feed inlet; 6. Servo motor; 7. Solenoid valve; 8. Cooling cylinder; 9. Discharge outlet; 10. Collector; 11. Control console; 12. Vibration motor; 13. Stirring rod; 14. Mounting bracket; 15. Heater; 16. Stirring paddle; 17. Heat-conducting wire; 18. Spiral blade; 19. Baffle; 20. Air cooler; 21. Air outlet pipe. Detailed Implementation

[0025] The following will describe in detail the implementation of this application with reference to the accompanying drawings and embodiments, so that the implementation process of how this application uses technical means to solve technical problems and achieve technical effects can be fully understood and implemented accordingly.

[0026] like Figures 1-4 As shown, a plastic granule dryer includes a base 1, on which a drying component and a cooling component are mounted. Fixed supports 2 are located on the left and right sides of the base 1. The drying component is mounted on the fixed supports 2 and includes a drying cylinder 3. A feed inlet 5 is located on one side of the drying cylinder 3. A temperature sensor is installed on the inner wall of the drying cylinder 3. A servo motor 6 is located at the top of the drying cylinder 3. A stirring rod 13 is installed at the output end of the servo motor 6, and a stirring mechanism is installed on the stirring rod 13. Plastic granules are fed into the drying component through the feed inlet 5 and dried during the drying process. The stirring mechanism is used to stir the granules, ensuring they are thoroughly dried.

[0027] The mixing mechanism includes a mounting frame 14, a mixing paddle 16, and a spiral blade 18. The mounting frame 14 is installed on the upper half of the mixing rod 13, the mixing paddle 16 is arranged and installed at the bottom of the mounting frame 14, and the spiral blade 18 is installed on the lower half of the mixing rod 13. By using a servo motor 6 to drive the mixing rod 13 to rotate, the mixing paddle 16 mixes the granules during the rotation of the mixing rod 13, while the spiral blade 18 transports the granules from the bottom to the top, thereby improving the drying effect of the plastic granules.

[0028] The drying assembly also includes a heater 15, which is a ring structure mounted on the top of the mounting frame 14. Several sets of heat-conducting wires 17 are arranged on the stirring paddle 16, and the heat-conducting wires 17 are electrically connected to the heater 15. During the stirring process, the heat-conducting wires 17 are heated by the heater 15, which can stir and dry the particles in the inner layer, thereby improving the drying effect.

[0029] The drying assembly also includes a dryer 4, which is mounted on top of the base 1. A dustproof plate is provided at the air inlet of the dryer 4, and a solenoid valve 7 is provided at the bottom of the drying cylinder 3. Hot air is blown into the interior of the drying cylinder 3 by using the dryer 4, thereby rapidly increasing the internal temperature. The outflow of particles is controlled by using the solenoid valve 7.

[0030] Furthermore, such as Figures 1-4 As shown, the cooling assembly includes a cooling cylinder 8 and a vibration motor 12. The vibration motor 12 is symmetrically installed inside both sides of the base 1. The cooling cylinder 8 is mounted on the output end of the vibration motor 12 via a bracket. The cooling cylinder 8 is connected to a solenoid valve 7 via a hose. A discharge port 9 is provided at the bottom of the cooling cylinder 8. By using the vibration motor 12 to drive the cooling cylinder 8 to vibrate, the particles can be prevented from accumulating together and from sticking together.

[0031] The cooling assembly also includes a cooler 20, which is installed at the rear end of the base 1. A dustproof plate is installed at the air inlet of the cooler 20. An air outlet duct 21 is installed in the center of the interior of the cooling cylinder 8, and several air outlet holes are provided on the air outlet duct 21. The air outlet duct 21 is connected to the cooler 20 via a flexible hose. A baffle 19 is installed on the inner wall of the cooling cylinder 8, and the baffle 19 has a spiral structure welded to the inner wall of the cooling cylinder 8. By using the cooler 20 and the air outlet duct 21 to inject cold air into the interior of the cooling cylinder 8, and by setting up the baffle 19, the movement time of the plastic particles in the cooling cylinder 8 can be increased, thereby improving the cooling effect.

[0032] Furthermore, such as Figure 1As shown, the dryer also includes a control console 11, which is mounted on the front side of the base 1. The base 1 has a groove, and a collector 10 is installed in the groove. By using the control console 11 to control the various components and mechanisms of the dryer, automated control can be achieved. By setting up the collector 10, the outflowing plastic particles can be collected and processed.

[0033] like Figures 1-4 As shown, the principle of a plastic granule dryer provided in this embodiment is as follows: Plastic granules are fed into the feed inlet 5, and the servo motor 6 is started at the same time. The servo motor 6 drives the stirring rod 13 to rotate. During the rotation of the stirring rod 13, the granules are stirred by the stirring paddle 16. At the same time, the spiral blades 18 transport the granules at the bottom to the top. During the stirring process, the heater 15 heats the heat-conducting wire 17, and the dryer 4 blows hot air into the inside of the drying cylinder 3 to heat, dry and stir the plastic granules. After drying, the plastic granules are poured into the cooling cylinder 8 for cooling by opening the solenoid valve 7. The cooling steps include: the cold air blower 20 is started to blow cold air out from the air outlet 21, the granules move on the baffle 19 to the discharge port 9, and at the same time the vibration motor 12 drives the cooling cylinder 8 to vibrate to prevent the granules from accumulating together. Finally, the granules flow into the collector 10.

[0034] If certain terms are used in the specification and claims to refer to specific components, those skilled in the art will understand that hardware manufacturers may use different names to refer to the same component. This specification and claims do not distinguish components based on differences in name, but rather on differences in function. The term "comprising" as used throughout the specification and claims is an open-ended term and should be interpreted as "comprising but not limited to." "Approximately" means that within an acceptable margin of error, those skilled in the art can solve the technical problem and substantially achieve the technical effect within a certain margin of error.

[0035] It should be noted that the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a product or system comprising a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a product or system. Without further limitation, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the product or system that includes that element.

[0036] The foregoing description illustrates and describes several preferred embodiments of the present invention. However, as previously stated, it should be understood that the present invention is not limited to the forms disclosed herein and should not be construed as excluding other embodiments. It can be used in various other combinations, modifications, and environments, and can be altered within the scope of the present invention's conception through the foregoing teachings or related technical or knowledge. Any modifications and variations made by those skilled in the art that do not depart from the spirit and scope of the present invention should be within the protection scope of the appended claims.

Claims

1. A plastic granule dryer, characterized in that: include Base; Fixed brackets are provided on both sides of the base; A drying assembly is disposed on the base and mounted on the fixed bracket. The drying assembly includes a drying cylinder, a feed inlet is provided on one side of the drying cylinder, a temperature sensor is provided on the inner wall of the drying cylinder, a solenoid valve is provided at the bottom of the drying cylinder, a servo motor is provided at the top of the drying cylinder, a stirring rod is installed at the output end of the servo motor, and a stirring mechanism is provided on the stirring rod. The cooling assembly includes a cooling cylinder and a vibration motor. The vibration motor is symmetrically installed inside both sides of the base. The cooling cylinder is installed on the output end of the vibration motor via a bracket. The inlet of the cooling cylinder is connected to the solenoid valve via a hose. The bottom of the cooling cylinder is provided with an outlet.

2. The plastic granule dryer according to claim 1, characterized in that: The stirring mechanism includes a mounting frame, a stirring paddle, and spiral blades. The mounting frame is installed on the upper half of the stirring rod, the stirring paddle is arranged and installed at the bottom of the mounting frame, and the spiral blades are installed on the lower half of the stirring rod.

3. The plastic granule dryer according to claim 2, characterized in that: The drying assembly also includes a heater, which is a ring structure mounted on the top of the mounting frame. Several sets of heat-conducting wires are arranged on the stirring paddle, and the heat-conducting wires are electrically connected to the heater.

4. The plastic granule dryer according to claim 3, characterized in that: The drying assembly also includes a dryer, which is installed on the top of the base, and a dustproof plate is provided at the air inlet of the dryer.

5. The plastic granule dryer according to claim 4, characterized in that: The cooling assembly also includes a cooler fan, which is installed at the rear end of the base. A dustproof plate is provided at the air inlet of the cooler fan. An air outlet pipe is installed in the center of the interior of the cooling cylinder. The air outlet pipe is provided with several air outlet holes. The air outlet pipe is connected to the cooler fan through a flexible hose. A baffle is provided on the inner wall of the cooling cylinder. The baffle is a spiral structure welded to the inner wall of the cooling cylinder.

6. The plastic granule dryer according to claim 5, characterized in that: The dryer also includes a control console, which is installed on the front side of the base. The base has a groove, and a collector is installed in the groove.