Plastic processing air dryer

Abstract

The utility model relates to an air dryer for plastic processing. Comprising a rack, a conveying assembly installed on the rack and used for conveying workpieces, a top air-drying assembly installed on the rack and used for air-drying the workpieces on the conveying assembly, and a bottom air-drying assembly installed on the rack and used for air-drying the workpieces on the conveying assembly. The bottom air drying assembly comprises a bottom fan mounted on the rack, an air guide pipe fitting of which one end is mounted on the rack and the other end is communicated with the bottom fan, and a heating piece mounted on the rack between the conveying assembly and the air guide pipe fitting; through the top air-drying assembly and the bottom air-drying assembly, air-drying operation is conducted from the top and the bottom of the workpiece at the same time, so that moisture or volatile substances on the surface of the workpiece can be taken away more quickly under clamping of up-down airflow, and the air-drying efficiency is effectively improved.

Description

Technical Field

[0001] This utility model relates to the field of processing equipment technology, and in particular to a plastic processing air dryer. Background Technology

[0002] After plastic injection molding, water or cleaning solvents are used to remove mold release agents or clean the workpiece. Similarly, after plastic extrusion, cooling and cleaning may be necessary. These operations leave liquid residue on the workpiece surface. If this liquid is not removed promptly and effectively, it can affect subsequent processing steps, such as surface coating and packaging. For example, before coating, moisture on the workpiece surface can reduce paint adhesion, affecting product quality. Utility Model Content

[0003] Therefore, the purpose of this utility model is to provide a plastic processing air dryer with high air drying efficiency.

[0004] The present invention adopts the following technical solution:

[0005] A plastic processing air dryer includes a frame, a conveying assembly mounted on the frame for conveying workpieces, a top drying assembly mounted on the frame for drying the workpieces on the conveying assembly, and a bottom drying assembly mounted on the frame for further drying the workpieces on the conveying assembly. The bottom drying assembly includes a bottom fan mounted on the frame, an air guide duct with one end mounted on the frame and the other end communicating with the bottom fan, and a heating element mounted on the frame between the conveying assembly and the air guide duct.

[0006] Furthermore, the air guide pipe includes an exhaust pipe with one end mounted on the frame and the other end connected to the bottom fan, and a plurality of exhaust ports disposed on the exhaust pipe; the plurality of exhaust ports are connected to the inner wall of the exhaust pipe and are disposed toward the side of the conveying assembly.

[0007] Furthermore, the conveying assembly includes a drive roller mounted on one side of the frame, a driven roller mounted on the other side of the frame, and connecting hinges mounted on the drive roller and the driven roller and drivingly connected to the drive roller and the driven roller; there are two connecting hinges, which are respectively mounted at both ends of the drive roller and the driven roller; the conveying assembly also includes a plurality of conveying rollers mounted between the connecting hinges, and a conveying drive component for driving the drive roller to rotate.

[0008] Furthermore, the conveying assembly also includes a liquid outlet channel disposed between adjacent conveying rollers.

[0009] Furthermore, the conveying assembly also includes conveying baffles disposed at both ends of the conveying roller to prevent the workpiece from falling off during the conveying process.

[0010] Furthermore, the conveying assembly also includes a discharge hopper disposed on one side of the discharge port; the discharge hopper includes a feeding channel and a discharge channel; the feeding channel is disposed on the side facing the discharge port, and the discharge channel is disposed on the side away from the top drying assembly.

[0011] Furthermore, the plastic processing air dryer also includes a liquid collection assembly installed on the frame on the side of the conveying assembly away from the top air drying assembly; the liquid collection assembly includes a collection box installed on the frame for collecting liquid flowing out of the discharge channel; the bottom end face of the collection box is inclined downward from the discharge port of the conveying assembly toward the inlet port.

[0012] Furthermore, the liquid collection assembly also includes a drain valve installed at the bottom of the collection tank on one side of the discharge port.

[0013] Furthermore, the top drying assembly includes a top fan mounted on the frame; the top fan also includes a top air outlet; the top air outlet is disposed towards the side of the conveying assembly.

[0014] Furthermore, the top drying assembly also includes multiple diversion pipes installed side-by-side on the air outlet.

[0015] The beneficial effects of this utility model are as follows:

[0016] The plastic processing air dryer of this utility model uses a top drying component and a bottom drying component to simultaneously dry the workpiece from both the top and bottom. This allows moisture or volatile substances on the workpiece surface to be carried away more quickly under the combined effect of the airflow, effectively improving drying efficiency. When the bottom fan, in conjunction with the air guide pipe, directs the airflow through the heating element, the heated gas is applied to the workpiece surface on the conveying component, providing more heat of vaporization for any liquids on the workpiece surface. This allows moisture or solvents on the workpiece surface to change from a liquid to a gaseous state more quickly, accelerating the drying process. The top and bottom drying components, combined with the uniform conveying speed of the conveying component, ensure that the workpiece is dried more evenly, avoiding quality problems caused by localized dampness, such as deformation, mold, or uneven surface coating, thereby improving the overall product quality control level of the plastic processing process. Attached Figure Description

[0017] Figure 1 This is a perspective view of a plastic processing air dryer according to an embodiment of the present invention;

[0018] Figure 2 for Figure 1A three-dimensional schematic diagram of the bottom drying assembly and liquid collection assembly of a plastic processing air dryer;

[0019] Figure 3 for Figure 2 Left sectional view of the air duct of a plastic processing air dryer;

[0020] Figure 4 for Figure 1 A three-dimensional schematic diagram of the conveyor components of a plastic processing air dryer;

[0021] Figure 5 for Figure 1 Exploded view of the conveyor assembly of a plastic processing air dryer;

[0022] Figure 6 for Figure 1 A three-dimensional schematic diagram of the top drying component of a plastic processing air dryer. 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] In the description of this utility model, it should be noted that the terms "vertical direction," "up," "down," and "horizontal," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In addition, "first," "second," "third," and "fourth" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0025] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or a connection through an intermediate medium; and they can refer to the internal communication between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0026] Please see Figures 1 to 6This invention discloses a plastic processing air dryer according to one embodiment of the present invention, comprising a frame 10, a conveying assembly 20 mounted on the frame 10 for conveying workpieces, a top drying assembly 30 mounted on the frame 10 for drying the workpieces on the conveying assembly 20, and a bottom drying assembly 40 mounted on the frame 10 for further drying of the workpieces on the conveying assembly 20. The bottom drying assembly 40 includes a bottom fan 41 mounted on the frame 10, an air guide duct 42 with one end mounted on the frame 10 and the other end connected to the bottom fan 41, and a heating element 43 mounted on the frame 10 between the conveying assembly 20 and the air guide duct 42. In this embodiment, the workpiece is plastic.

[0027] The working principle of this plastic processing air dryer is as follows: When a workpiece is placed on the conveying assembly 20, the conveying assembly 20 moves the workpiece towards the discharge end. The workpiece is sequentially conveyed to the areas where the top air drying assembly 30 and the bottom air drying assembly 40 are located for air drying. The top air drying assembly 30 generates airflow to air dry the workpiece on the conveyor belt from above. The airflow blows onto the workpiece on the conveyor belt through the air outlet. The airflow blowing down from the top can blow away moisture or other volatile substances on the surface of the workpiece, making it dry. At the same time, since the airflow is blowing down from above, it can effectively disperse the moisture on the top of the workpiece. The bottom fan 41 generates airflow that passes through the heating element 43, which heats the airflow. The heated airflow has higher energy and lower relative humidity, which can evaporate the moisture on the surface of the workpiece more quickly. For example, in the plastic processing, some plastic products may be washed with water or contain certain solvents. The heated airflow can accelerate the vaporization process of these liquids, making the workpiece dry faster. The heated airflow blows upward from the bottom of the workpiece, which works in conjunction with the airflow of the top drying component 30 to dry the workpiece more thoroughly.

[0028] Compared to existing technologies, the plastic processing air dryer of this invention, through the top air drying component 30 and the bottom air drying component 40, simultaneously performs air drying operations from the top and bottom of the workpiece. This allows moisture or volatile substances on the workpiece surface to be carried away more quickly under the combined effect of the airflow from both sides, effectively improving the drying efficiency. When the bottom fan 41, in conjunction with the air guide duct 42, directs the generated airflow through the heating element 43, the heated gas is applied to the workpiece surface on the conveying component 20 for air drying. This provides more heat of vaporization for the liquid on the workpiece surface, allowing the moisture or solvent on the workpiece surface to change from a liquid to a gaseous state more quickly, accelerating the drying process. The top air drying component 30 and the bottom air drying component 40, combined with the uniform conveying of the conveying component 20, ensure that the workpiece receives air drying more evenly, avoiding workpiece quality problems caused by localized dampness, such as deformation, mold, or uneven surface coating, thereby improving the overall product quality control level of the plastic processing process.

[0029] Please see Figure 2 and Figure 3 The air duct 42 includes an exhaust pipe 421 with one end mounted on the frame 10 and the other end connected to the bottom fan 41, and multiple exhaust ports 422 disposed on the exhaust pipe 421. The multiple exhaust ports 422 are connected to the inner wall of the exhaust pipe 421 and are positioned towards the conveyor assembly 20. The placement of the exhaust ports 422 towards the conveyor assembly 20 ensures that the airflow generated by the bottom fan 41 is accurately directed onto the workpieces on the conveyor belt, avoiding airflow waste and concentrating airflow energy on the workpieces requiring drying, thereby improving drying efficiency. For example, in large-scale plastic processing production, precise air delivery ensures that each workpiece receives sufficient drying airflow, making the drying process more efficient and stable. Since the exhaust ports 422 are located on the exhaust pipe 421, by rationally designing the shape and position of the exhaust pipe 421, the position of the exhaust ports 422 can be flexibly adjusted to adapt to workpieces of different sizes and shapes. The exhaust vent 422 is connected to the inner wall of the exhaust duct 421, which allows the airflow from the bottom fan 41 to be evenly distributed inside the exhaust duct 421 before being blown out from the exhaust vent 422. When the airflow generated by the fan enters the exhaust duct 421, the airflow will diffuse inside the duct and fill the entire duct space. Since the exhaust vent 422 is connected to the inner wall, each exhaust vent 422 can obtain airflow evenly, thereby ensuring that the airflow blown out from each exhaust vent 422 is relatively uniform. This uniform air supply method can make the workpieces on the conveyor belt receive uniform air drying, avoiding uneven drying caused by excessive or insufficient local airflow.

[0030] Please see Figure 4 and Figure 5The conveying assembly 20 includes a drive roller 21 mounted on one side of the frame, a driven roller 22 mounted on the other side of the frame, and a connecting hinge 23 mounted on the drive roller 21 and the driven roller 22 and connected to the drive roller 21 and the driven roller 22 in a driving connection. There are two connecting hinges 23, which are respectively mounted at both ends of the drive roller and the driven roller 22. The conveying assembly 20 also includes a plurality of conveying rollers 24 mounted between the connecting hinges, and a conveying drive component 25 for driving the drive roller 21 to rotate. The conveying assembly 20 includes a drive roller 21, a driven roller 22, and multiple conveyor rollers 24. This multi-roller structure provides stable support for the workpiece. When the workpiece is placed on the connecting hinge 23, the conveyor rollers 24 effectively prevent the workpiece from sinking or swaying during conveying. For example, for larger or heavier workpieces, multiple conveyor rollers 24 can evenly distribute the weight of the workpiece, ensuring its stability during conveying and reducing problems such as uneven drying or collision damage caused by workpiece instability. Two connecting hinges 23 are respectively installed at both ends of the drive roller 21 and the driven roller 22, which increases the stability of the conveying. The double-hinge structure can better withstand tension and prevent the conveyor belt from deviating during conveying. If there is only one connecting hinge 23, the conveyor belt is prone to shifting to one side when subjected to uneven forces during conveying, affecting the normal operation of the conveying process. The chain structure can restrain each other, keeping the conveyor belt relatively stable and ensuring that the workpiece can be smoothly conveyed along the predetermined path. The conveyor drive 25 drives the drive roller 21 to rotate, and the drive roller 21 drives the conveyor belt to move through the friction with the connecting hinge 23. Since there is also friction between the conveyor belt and the driven roller 22 and the conveyor roller 24, the entire conveying system can operate synchronously, effectively transmitting power to the conveyor belt and achieving a stable conveying speed. The good cooperation between the drive roller 21, the driven roller 22 and the conveyor roller 24 can make the conveying process more efficient. The drive roller 21 provides power, the driven roller 22 plays an auxiliary support and guiding role, and the conveyor roller 24 enhances support and friction in the middle. This can reduce the slippage between the conveyor belt and the rollers, improve the power transmission efficiency, and enable the workpiece to move quickly and stably on the conveying assembly 20, thereby improving the working efficiency of the entire dryer.

[0031] The conveying assembly 20 also includes a liquid outlet channel disposed between adjacent conveyor rollers 24. During the conveying of the workpiece, liquid on its surface will drip downwards under the influence of gravity; the liquid outlet channel, located between adjacent conveyor rollers 24, provides a direct discharge path for this liquid; when liquid drips from the workpiece surface onto the conveyor belt, it will flow out quickly through the liquid outlet channel, preventing liquid from accumulating on the conveyor belt; if liquid accumulates on the conveyor belt, it may re-wet the partially dried workpiece, affecting the drying effect, and may also cause the conveyor belt to slip or corrode, while the liquid outlet channel effectively solves this problem; the presence of the liquid outlet channel can prevent liquid from flowing on the conveyor belt, especially preventing liquid from flowing towards the conveyor belt. The dried workpiece area is recirculated; the liquid outlet channel guides the liquid directly downwards, avoiding this backflow phenomenon and ensuring that each workpiece can be dried in a relatively dry environment; timely discharge of liquid through the liquid outlet channel can keep the bottom of the workpiece dry; if the bottom of the workpiece is soaked in liquid during the drying process, it will prolong the drying time and may cause uneven drying at the bottom; the liquid outlet channel can ensure that the liquid at the bottom of the workpiece is discharged in time, so that the airflow generated by the bottom drying component 40 can better act on the bottom of the workpiece, accelerate the drying speed at the bottom, and thus improve the overall drying quality and efficiency of the workpiece.

[0032] The conveying assembly 20 also includes conveyor baffles 27 disposed at both ends of the conveyor roller 24 to prevent workpieces from falling during the conveying process. The conveyor baffles 27, located at both ends of the conveyor roller 24, form a physical barrier that prevents workpieces from falling off the conveyor belt due to various reasons (such as vibration during conveying, collisions between workpieces, slight shaking of the conveyor belt, etc.). In actual plastic processing production, the number of workpieces on the conveyor belt is large, and they may have different shapes and sizes. The conveyor baffles 27 ensure that the workpieces always move within the effective area of ​​the conveyor belt, preventing them from falling to the ground and becoming contaminated or damaged, thus ensuring the integrity and quality of the product. For irregularly shaped workpieces, such as those with protruding parts or curved shapes, the conveyor baffles 27 can effectively confine them to the conveyor belt, preventing them from slipping off the sides.

[0033] The conveying assembly 20 also includes a discharge hopper 28 disposed on one side of the discharge port; the discharge hopper 28 includes a feeding channel 280 and a discharge channel 281; the feeding channel 280 is disposed on the side facing the discharge port, and the discharge channel 281 is disposed on the side facing away from the top drying assembly 30. The presence of the discharge hopper 28 provides a dedicated discharge channel 281 for the dried workpieces; the feeding channel 280 is disposed facing the discharge port, allowing the workpieces sent from the discharge port of the conveying assembly 20 to smoothly enter the discharge hopper 28; the discharge channel 281 guides the workpieces to exit in a direction away from the top drying assembly 30. This design allows the workpieces to leave the dryer in a predetermined direction, preventing them from scattering during discharge and achieving orderly discharge; in large-scale plastic processing production, orderly discharge helps the subsequent collection and packaging processes to proceed smoothly; the orientation of the discharge channel 281 can prevent the workpieces from scattering after discharge. The workpiece can return to the conveyor belt or enter the drying area; the discharge hopper 28 also ensures that each workpiece only goes through the drying process once and then smoothly enters the next processing stage; the discharge channel 281 is set away from the top drying component 30, which can prevent the workpiece that has just been dried from being affected by the wind blown out by the top drying component 30 again; if the workpiece is blown by the wind again after discharge, especially when the air contains a certain humidity, the workpiece may reabsorb moisture and become damp again; through the reasonable design of the discharge hopper 28, the workpiece can leave the drying area quickly, which can protect the quality of the dried workpiece and ensure that the workpiece remains dry when leaving the dryer.

[0034] Please see Figure 1 and Figure 2The plastic processing air dryer also includes a liquid collection assembly 50 installed on the frame 10 on the side of the conveying assembly 20 away from the top air drying assembly 30; the liquid collection assembly 50 includes a collection box 51 installed on the frame 10 for collecting liquid flowing out of the discharge channel 281; the bottom end face of the collection box 51 is set at an angle from the discharge port of the conveying assembly 20 toward the inlet port. The collection box 51 in the liquid collection assembly 50 is specifically designed to collect liquid flowing from the discharge channel 281, preventing liquid from flowing and accumulating around the equipment. During the plastic processing drying process, even with the liquid discharge channel helping to drain liquid from the workpiece surface, a small amount of liquid may still remain on the discharge channel 281. The collection box 51 can collect this liquid, preventing it from dripping onto the ground and causing pollution or corrosion to the equipment. The bottom end face of the collection box 51 is inclined downwards from the discharge port of the conveying assembly 20 towards the inlet. This inclined design allows the collected liquid to automatically converge towards the inlet side under gravity. In this way, the liquid can be concentrated in a specific area of ​​the collection box 51, facilitating subsequent liquid treatment, such as unified discharge or recycling. Compared to a flat-bottomed collection box 51, the inclined bottom face can guide the liquid flow more efficiently, preventing the liquid from dispersing inside the box and becoming difficult to handle. By collecting the liquid, the pollution and corrosion of the conveying assembly 20, the discharge hopper 28, and surrounding frame 10 can be reduced.

[0035] The liquid collection assembly 50 also includes a drain valve 52 installed at the bottom of the collection tank 51 on one side of the discharge port. The drain valve 52, installed at the bottom of the collection tank 51, allows the liquid inside the collection tank 51 to be easily discharged when needed. When the liquid in the collection tank 51 reaches a certain volume or when the collected liquid needs to be processed, simply opening the drain valve 52 allows the liquid to flow smoothly out of the collection tank 51 under gravity. This avoids manual scooping or complex pumping methods, making operation simple and quick, and improving the efficiency of liquid discharge. The drain valve 52 can precisely control the liquid discharge process. Operators can adjust the opening degree of the drain valve 52 to control the liquid discharge rate according to actual needs. For example, when discharging the collected liquid into a specific recycling container, the drain valve 52 can be opened slowly, allowing the liquid to flow slowly into the recycling container, preventing overflow due to excessive discharge speed, thereby achieving more precise liquid processing.

[0036] Please see Figure 1 and Figure 6The top drying assembly 30 includes a top fan 31 mounted on the frame 10; the top fan 31 also includes a top air outlet 310; the top air outlet 310 is disposed facing the conveyor assembly 20. The top air outlet 310 faces the conveyor assembly 20, allowing the airflow generated by the top fan 31 to directly blow onto the workpiece on the conveyor belt; this direct airflow action can quickly blow away moisture, solvents, or other volatile substances from the workpiece surface; for example, when the workpiece has been washed with water or contains liquids such as release agents, the air blown from the top air outlet 310 can effectively accelerate the evaporation of the liquid and improve drying efficiency; moreover, since the air is blown vertically onto the workpiece from above, it can concentrate the drying of the top surface and part of the sides of the workpiece, cooperating with the airflow of the bottom drying assembly 40 to achieve a more comprehensive drying effect; the top air outlet... The downward airflow of 310 creates air convection around the workpiece. This air convection accelerates the air renewal rate on the workpiece surface, keeping the moisture concentration on the workpiece surface consistently low. This helps maintain an environment conducive to moisture evaporation, further improving the drying speed and quality. By rationally designing the position and angle of the air outlet of the top fan 31, it can be ensured that the air blown from the outlet evenly covers the top of the workpiece. In plastic processing, the shape and size of the workpieces may vary. By adjusting the layout of the air outlet, the air can be evenly distributed to the top of each workpiece, avoiding insufficient drying in certain areas.

[0037] The top drying assembly 30 also includes multiple diversion ducts 32 installed side-by-side on the air outlet. These diversion ducts 32, installed side-by-side on the air outlet, disperse the airflow from the top fan 31 into multiple smaller airflows. These smaller airflows can more evenly cover the surface of the workpiece on the conveyor belt. For irregularly shaped or large workpieces, the airflow from a single air outlet may result in concentrated airflow in some areas while other areas are insufficiently dried. The diversion ducts 32 allow for wider airflow distribution, ensuring that every part of the workpiece receives sufficient airflow, thereby improving the uniformity of drying. The diversion ducts 32 can be designed and adjusted according to the shape and size of the workpiece. For example, for workpieces with special shape requirements, such as those with elongated sections or recessed areas, the length, angle, and size of the air outlet of the diversion ducts 32 can be adjusted to precisely direct the airflow to these areas requiring focused drying. This better meets the drying needs of different workpieces and avoids quality problems caused by uneven drying.

[0038] The above description merely illustrates the preferred technical solution of this utility model, and while the description is relatively specific and detailed, it should not be construed as limiting the scope of the utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and this utility model also intends to include these modifications and variations.

Claims

1. A plastic processing air dryer, characterized in that, The device includes a frame, a conveying assembly mounted on the frame for conveying workpieces, a top drying assembly mounted on the frame for air-drying the workpieces on the conveying assembly, and a bottom drying assembly mounted on the frame for further air-drying the workpieces on the conveying assembly. The bottom drying assembly includes a bottom fan mounted on the frame, an air guide duct with one end mounted on the frame and the other end connected to the bottom fan, and a heating element mounted on the frame between the conveying assembly and the air guide duct.

2. The plastic processing air dryer according to claim 1, characterized in that, The air guide pipe includes an exhaust pipe with one end mounted on the frame and the other end connected to the bottom fan, and a plurality of exhaust ports disposed on the exhaust pipe; the plurality of exhaust ports are connected to the inner wall of the exhaust pipe and are disposed toward the side of the conveying assembly.

3. The plastic processing air dryer according to claim 1, characterized in that, The conveying assembly includes a drive roller mounted on one side of the frame, a driven roller mounted on the other side of the frame, and connecting hinges mounted on the drive roller and the driven roller and drivingly connected to the drive roller and the driven roller; there are two connecting hinges, which are respectively mounted at both ends of the drive roller and the driven roller; the conveying assembly also includes a plurality of conveying rollers mounted between the connecting hinges, and a conveying drive component for driving the drive roller to rotate.

4. The plastic processing air dryer according to claim 3, characterized in that, The conveying assembly also includes a liquid outlet channel disposed between adjacent conveying rollers.

5. The plastic processing air dryer according to claim 4, characterized in that, The conveying assembly also includes conveying baffles disposed at both ends of the conveying roller to prevent the workpiece from falling during the conveying process.

6. The plastic processing air dryer according to claim 5, characterized in that, The conveying assembly further includes a discharge hopper disposed on one side of the discharge port; the discharge hopper includes a feeding channel and a discharge channel; the feeding channel is disposed on the side facing the discharge port, and the discharge channel is disposed on the side away from the top drying assembly.

7. The plastic processing air dryer according to claim 6, characterized in that, The plastic processing air dryer also includes a liquid collection assembly installed on the frame on the side of the conveying assembly away from the top air dryer assembly; the liquid collection assembly includes a collection box installed on the frame for collecting liquid flowing out of the discharge channel; the bottom end face of the collection box is inclined downward from the discharge port of the conveying assembly toward the inlet port.

8. The plastic processing air dryer according to claim 7, characterized in that, The liquid collection assembly also includes a drain valve installed at the bottom of the collection tank on one side of the discharge port.

9. The plastic processing air dryer according to claim 1, characterized in that, The top drying assembly includes a top fan mounted on the frame; the top fan also includes a top air outlet; the top air outlet is disposed towards the side of the conveying assembly.

10. The plastic processing air dryer according to claim 9, characterized in that, The top drying assembly also includes multiple diversion pipes installed side-by-side on the air outlet.

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