Drying device for paperboard processing

By using a microwave dryer and an automated conveying system, combined with distance sensors and motor-driven collection frames, the problem of traditional cardboard drying relying on manual operation has been solved, realizing a highly efficient and automated cardboard drying process and improving production efficiency and quality.

CN223925345UActive Publication Date: 2026-02-17DONGGUAN HONGYUN PACKAGING & PRINTING CO LTD
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Patent Information

Application Number
CN202520607342.3
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-04-02
Publication Date
2026-02-17
Estimated Expiration
2035-04-02

AI Technical Summary

Technical Problem

Traditional paperboard drying processes rely on manual operation, resulting in low production efficiency and disrupted production flow, making it difficult to achieve high-efficiency automation.

Method used

A microwave dryer is used in conjunction with a conveyor module to automatically transport cardboard. The cardboard is automatically stacked and unloaded through a distance sensor and a motor-driven collection frame. Combined with an insulation curtain, the temperature is kept stable, reducing manual intervention.

Benefits of technology

It enables rapid and uniform drying of cardboard, improves production efficiency and automation, reduces manual intervention, and ensures drying quality and smooth production.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of paperboard processing, in particular to a drying device for paperboard processing, which comprises a rack, the rack is an assembly carrier of the drying device, a conveying module is mounted at the top of the rack, and the conveying module is used for conveying paperboards to be dried; the device comprises a rack, a conveying module and a microwave dryer, and further comprises a microwave dryer, a collecting frame, a connecting plate, a motor, a lead screw and a guide rod, the microwave dryer is installed at the top of the rack and located above the conveying module, and a conveying belt of the conveying module penetrates through the microwave dryer; two mounting plates are fixedly arranged on the lower portion of the outer wall of the side, close to a discharging port of the microwave dryer, of the rack, a guide rod is vertically and fixedly connected to one mounting plate, and a motor is fixedly mounted on the other mounting plate. The paperboard is automatically conveyed through the conveying module, the microwave dryer is matched to directly act on moisture in the paperboard, rapid and uniform heating is achieved, and the drying efficiency and quality are improved.
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Description

Technical Field

[0001] This utility model relates to the field of paperboard processing technology, and in particular to a drying device for paperboard processing. Background Technology

[0002] Paperboard is a thick paper product made from cellulose fibers (usually from wood, waste paper, etc.) and is widely used in various types of packaging materials. During the production process, paperboard undergoes a series of processes, including pulping, forming, pressing and drying. The drying process is crucial to ensuring the quality of paperboard, as it not only determines the strength and durability of the final product, but also affects its flatness, dimensional stability and printability.

[0003] Traditional drying equipment typically relies on manual labor for material collection. This not only increases the workload of workers, but also often leads to a decrease in production line efficiency due to manual intervention. Especially in large-scale manufacturing environments, frequent manual intervention can seriously disrupt the smoothness and rhythm of production. Therefore, in order to optimize the drying process and reduce reliance on manual labor, a drying device for cardboard processing is proposed. Utility Model Content

[0004] To overcome the shortcomings of the prior art, a drying apparatus for paperboard processing is provided.

[0005] The technical solution is as follows: A drying device for cardboard processing includes a frame and a conveying module. The frame serves as the assembly carrier for the drying device. The conveying module is installed on the top of the frame and is used to convey cardboard to be dried. The device also includes a microwave dryer, a collection frame, a connecting plate, a motor, a lead screw, and a guide rod. The microwave dryer is installed on the top of the frame and is located above the conveying module. The conveyor belt of the conveying module passes through the microwave dryer. Two mounting plates are fixed to the lower part of the outer wall of the frame near the outlet of the microwave dryer. A guide rod is vertically fixed to one mounting plate, and a motor is fixedly mounted on the other mounting plate. A lead screw is fixedly mounted on the output shaft of the motor. A collection frame for collecting the dried cardboard is provided near the outlet of the conveying module. Connecting plates are fixed to both sides of the collection frame. The collection frame is slidably connected to the guide rod via a connecting plate on one side, and the connecting plate on the other side of the collection frame is threadedly matched with the lead screw.

[0006] Furthermore, the collecting frame has an opening on the side near the conveying module, and an unloading trough on the side away from the conveying module. The unloading trough facilitates batch unloading of the cardboard after the collecting frame is full.

[0007] Furthermore, it also includes a support plate and a distance sensor. An "L"-shaped support plate is fixed to the top of the microwave dryer near the discharge port. A distance sensor is installed at the end of the support plate. The distance sensor is located directly above the collection frame. The distance sensor controls the start and stop of the motor through a built-in controller. The distance sensor is specifically an infrared sensor.

[0008] Furthermore, support feet are fixedly installed at the four corners of the bottom of the frame. The support feet have a certain degree of cushioning, allowing the frame to be placed more stably on the ground.

[0009] Furthermore, limit plates are installed on both sides of the frame near the feed inlet and discharge outlet of the conveying module. The limit plates are used to limit the cardboard conveyed on the conveying module. The limit plates are detachably installed on the frame and can be adjusted according to the actual limiting width of the cardboard.

[0010] Furthermore, heat-insulating curtains are installed at both the inlet and outlet of the microwave dryer, and the heat-insulating curtains hang down onto the conveyor belt of the conveying module to maintain a relatively stable temperature environment inside the microwave dryer.

[0011] The beneficial effects of this utility model are as follows: 1. This utility model automatically conveys cardboard through a conveying module, and works in conjunction with a microwave dryer to directly target the moisture inside the cardboard, thereby achieving rapid and uniform heating and improving drying efficiency and quality.

[0012] 2. This utility model can monitor the height of the cardboard in the collection frame through a distance sensor, and control the motor to start or stop through a built-in controller. The motor drives the lead screw to make the collection frame automatically descend, ensuring that each new cardboard can be accurately placed on top of the previous one, realizing automatic stacking of cardboard after drying, reducing manual intervention and improving the degree of production automation. When fully loaded, it can unload in batches through the unloading chute. Attached Figure Description

[0013] Figure 1 This is a three-dimensional structural diagram of the present invention.

[0014] Figure 2 This is a diagram showing the positional relationship between the conveying module, microwave dryer, limiting plate, and collection frame of this utility model.

[0015] Figure 3 This is a schematic diagram showing the cooperative relationship between the collection frame, connecting plate, motor, lead screw, and guide rod of this utility model.

[0016] Figure 4 This is a three-dimensional structural diagram of the support plate and distance sensor of this utility model.

[0017] The parts and their numbers in the diagram are as follows: 1-Frame, 101-Supporting foot, 102-Mounting plate, 2-Conveying module, 3-Microwave dryer, 4-Limiting plate, 5-Collection frame, 6-Connecting plate, 7-Motor, 8-Lead screw, 9-Guide rod, 10-Support plate, 11-Distance sensor, 12-Unloading chute, 13-Insulation curtain. Detailed Implementation

[0018] The present invention will now be described more fully below with reference to the accompanying drawings, in which presently preferred embodiments of the invention are shown. However, the present invention may be embodied in many different forms and should not be construed as limited to the embodiments set forth herein; rather, these embodiments are provided for thoroughness and completeness and to fully convey the scope of the invention to those skilled in the art.

[0019] A drying apparatus for paperboard processing, such as Figures 1-3 As shown, the device includes a frame 1 and a conveyor module 2. The frame 1 serves as the assembly carrier for this drying device. The conveyor module 2 is mounted on the top of the frame 1 and is used to convey the cardboard to be dried. It also includes a microwave dryer 3, a collection frame 5, a connecting plate 6, a motor 7, a lead screw 8, and a guide rod 9. The microwave dryer 3 is mounted on the top of the frame 1 and is located above the conveyor module 2. The conveyor belt of the conveyor module 2 passes through the microwave dryer 3. Two mounting plates 102 are fixed to the lower part of the outer wall of the frame 1 near the outlet of the microwave dryer 3. One mounting plate 102 has a guide rod 9 vertically fixed to it, and the other mounting plate... A motor 7 is fixedly installed on the 102, and a lead screw 8 is fixedly installed on the output shaft of the motor 7. A collection frame 5 for collecting dried cardboard is set near the discharge point of the conveying module 2 on the frame 1. A connecting plate 6 is fixedly connected to both sides of the collection frame 5. The collection frame 5 is slidably connected to the guide rod 9 through the connecting plate 6 on one side. The connecting plate 6 on the other side of the collection frame 5 is threadedly matched with the lead screw 8. The cardboard to be dried is conveyed through the conveying module 2 and passes through the microwave dryer 3, so that the cardboard is dried and then conveyed to the collection frame 5. The motor 7 drives the collection frame 5 to move through the lead screw 8, so that the collection frame 5 can continuously stack and collect the dried cardboard.

[0020] like Figure 3 As shown, the side of the collection frame 5 closest to the conveying module 2 is open, and the side of the collection frame 5 away from the conveying module 2 is provided with an unloading trough 12. The unloading trough 12 facilitates batch unloading of the collection frame 5 after it is full of cardboard.

[0021] like Figure 3 and Figure 4As shown, it also includes a support plate 10 and a distance sensor 11. An "L"-shaped support plate 10 is fixed to the top of the microwave dryer 3 near the discharge port. A distance sensor 11 is installed at the end of the support plate 10. The distance sensor 11 is located directly above the collection frame 5. The distance sensor 11 controls the opening and closing of the motor 7 through a built-in controller. The distance sensor 11 is specifically an infrared sensor. The distance sensor 11 emits an infrared beam vertically onto the collection frame 5 and calculates the distance between itself and the collection frame 5 by the time difference between emission and reception. After the cardboard is placed on the collection frame 5, the distance between itself and the distance sensor 11 decreases. At this time, the distance sensor 11 activates the motor 7 through the built-in controller. The motor 7 drives the collection frame 5 to descend by a distance equal to the thickness of the cardboard through the lead screw 8.

[0022] like Figure 1 and Figure 2 As shown, support feet 101 are fixedly installed at the four corners of the bottom of the frame 1. The support feet 101 have a certain buffering capacity, so that the frame 1 can be placed more stably on the ground through the support feet 101, thereby improving the working stability of the entire drying device. Limiting plates 4 are installed on both sides of the frame 1 near the inlet and outlet of the conveying module 2. The limiting plates 4 are used to limit the cardboard conveyed on the conveying module 2. The limiting plates 4 are detachably installed on the frame 1 and can be adjusted according to the actual limiting width of the cardboard.

[0023] like Figure 2 and Figure 3 As shown, heat preservation curtains 13 are installed at both the inlet and outlet of the microwave dryer 3. The heat preservation curtains 13 hang down onto the conveyor belt of the conveyor module 2. The heat preservation curtains 13 cover the inlet and outlet of the microwave dryer 3, so that the microwave dryer 3 maintains a relatively stable temperature environment, ensuring that the cardboard can be dried more evenly and avoiding the problems of local overheating or uneven drying.

[0024] When using this drying device to dry cardboard, the cardboard to be dried is first placed on the conveyor module 2 and fed into the microwave dryer 3 via a conveyor belt. The microwave dryer 3 is located above the conveyor module 2. As the cardboard passes through the dryer, microwave energy penetrates the cardboard and heats the moisture inside, causing the moisture to evaporate, thus achieving a rapid drying effect. Simultaneously, a collection frame 5 located below the discharge end of the conveyor module 2 receives the dried cardboard. Each time a piece of cardboard is dried and falls into the collection frame 5, a distance sensor 11 detects the change in the height of the cardboard within the collection frame 5. The distance sensor 11 is located at the end of the "L"-shaped support plate 10 and faces the collection frame 5. The distance sensor 11 measures the distance between itself and the collection frame 5 by emitting an infrared beam. As the number of cardboard pieces increases... When the distance decreases to the preset value, the built-in controller of the distance sensor 11 will start the motor 7, causing the lead screw 8 to rotate, which in turn drives the collection frame 5 to drop a distance equal to the current cardboard thickness, ensuring that the newly dropped cardboard can be stacked orderly and stably in the collection frame 5. In order to maintain the stability of the internal temperature of the microwave dryer 3 during the drying process, heat preservation curtains 13 are provided at the inlet and outlet of the frame 1 to prevent heat loss and ensure the consistency and efficiency of the cardboard drying process. The limiting plate 4 on the frame 1 is used to adjust and fix the position of the cardboard so that it will not deviate from the predetermined path during the conveying process, ensuring the smooth progress of the entire drying process. Finally, when the collection frame 5 is full of cardboard, the operator can remove the dried cardboard in batches through the unloading chute 12, and then repeat the above process to continue the next round of drying operations.

[0025] Although this disclosure has been described with respect to only a limited number of embodiments, those skilled in the art who benefit from this disclosure will understand that various other embodiments can be devised without departing from the scope of this invention. Therefore, the scope of this invention should be limited only by the appended claims.

Claims

1. A drying apparatus for cardboard processing, comprising a frame (1) and a conveying module (2), wherein the conveying module (2) is mounted on top of the frame (1); Its features are, It also includes a microwave dryer (3), a collection frame (5), a connecting plate (6), a motor (7), a lead screw (8), and a guide rod (9). The microwave dryer (3) is mounted on the top of the frame (1). The microwave dryer (3) is located above the conveyor module (2). The conveyor belt of the conveyor module (2) passes through the microwave dryer (3). Two mounting plates (102) are fixed on the lower part of the outer wall of the frame (1) near the outlet of the microwave dryer (3). One of the mounting plates (102) is... A guide rod (9) is vertically fixed to the top, and a motor (7) is fixedly installed on another mounting plate (102). A lead screw (8) is fixedly installed on the output shaft of the motor (7). A collection frame (5) is set near the discharge point of the conveying module (2) on the frame (1). A connecting plate (6) is fixedly connected to both sides of the collection frame (5). The collection frame (5) is slidably connected to the guide rod (9) through a connecting plate (6) on one side. The connecting plate (6) on the other side of the collection frame (5) and the lead screw (8) are threadedly matched.

2. The drying apparatus for paperboard processing as described in claim 1, characterized in that, The collection frame (5) has an opening on the side near the conveying module (2), and an unloading trough (12) is provided on the side of the collection frame (5) away from the conveying module (2).

3. A drying apparatus for paperboard processing as described in claim 2, characterized in that, It also includes a support plate (10) and a distance sensor (11). The support plate (10) is fixed to the top of the microwave dryer (3) near the discharge port. The distance sensor (11) is installed at the end of the support plate (10). The distance sensor (11) is located directly above the collection frame (5). The distance sensor (11) controls the opening and closing of the motor (7) through a built-in controller. The distance sensor (11) is specifically an infrared sensor.

4. A drying apparatus for paperboard processing as described in claim 3, characterized in that, Support feet (101) are fixedly installed at the four corners of the bottom of the frame (1), and the support feet (101) have a certain buffering capacity.

5. A drying apparatus for paperboard processing as described in claim 4, characterized in that, Limiting plates (4) are installed on both sides of the frame (1) near the inlet and outlet of the conveying module (2). The limiting plates (4) are used to limit the cardboard conveyed on the conveying module (2). The limiting plates (4) are detachably installed on the frame (1).

6. A drying apparatus for paperboard processing as described in claim 5, characterized in that, The microwave dryer (3) is equipped with heat preservation curtains (13) at both the inlet and outlet, and the heat preservation curtains (13) hang down onto the conveyor belt of the conveyor module (2).