A plate drying device

Abstract

The application provides a plate drying device, which comprises a drying box and a loading vehicle. A drying assembly is arranged in the drying box. A plurality of clamping grooves are formed in a bearing flat plate of the loading vehicle. Plates are inserted into the clamping grooves. A jacking assembly is arranged in the clamping grooves and is lifted to make the plates exposed completely when the jacking assembly is lifted. An elastic member is fixed to one side of the bearing flat plate. The other end of the elastic member is connected with a longitudinally extending support column. The other end of the support column is connected with a pressing plate which extends horizontally above the bearing flat plate. The plate drying device can push the plates out of the clamping grooves through the jacking assembly, so that the plates are exposed completely and are dried by the drying assembly. The drying effect is improved. The pressing plate is driven by the elastic member to press the plates up and down. The movement tracks of the plates to the left and right are limited by the clamping grooves. The limiting effect is good. The stress of the limiting parts is balanced. The plates are not damaged by the pressing marks.

Description

Technical Field

[0001] This invention relates to the field of board drying technology, specifically to a board drying device. Background Technology

[0002] After the wood panel processing machine processes the boards, drying is required to make the paint surface glossier. Existing board drying methods include some where workers move the boards into drying chambers, which is labor-intensive; and others that use carriers to transport the boards to the drying chambers. For example, Chinese patent CN208332898U uses a flatbed cart to evenly load the boards, transporting each upright board between different drying components, achieving batch transport and uniform drying. However, this design has the following problems: firstly, the cart... The trays on the pallet truck hold the upright boards in place, but these trays block part of the boards, resulting in that area not being dried. Secondly, the trays only clamp the boards at the bottom, limiting their movement. The small contact area causes the boards to wobble during transport, and the contact surface with the trays is prone to indentation, affecting the quality of the boards. Thirdly, the drying chamber requires opening and closing the door to move the boards in and out, which is inconvenient. Fourthly, relying solely on the drying fan for drying the boards is inefficient and does not conform to the concept of sustainable development and environmental protection. Therefore, a board drying device is proposed to solve the above problems. Summary of the Invention

[0003] To address the shortcomings of existing technologies, this invention provides a board drying device with the advantage of good drying effect.

[0004] To achieve the above objectives, the present invention provides the following technical solution: a board drying device, comprising a drying chamber and a loading vehicle, wherein a drying component is provided inside the drying chamber, and a plurality of slots are provided on the carrying plate of the loading vehicle, wherein boards are inserted into the slots, and a top support component is provided in the slots for lifting and lowering, such that when the top support component rises, it causes the boards to rise above the slots and be fully exposed, wherein an elastic element is fixed on one side of the carrying plate, and a longitudinally extending pillar is connected to the other end of the elastic element, and a pressure plate extending horizontally to the top of the carrying plate is connected to the other end of the pillar, such that a clamping area for clamping the boards is formed between the pressure plate and the top support component.

[0005] Furthermore, the top support assembly includes a lifting plate. The bearing plate is hollow and a motor is installed inside it. The output shaft of the motor is coaxially connected to a screw. The screw is threadedly connected to any lifting plate, so that when the screw rotates, it drives the lifting plate to rise and fall in the slot. A connecting rod is fixedly connected between each of the lifting plates.

[0006] Furthermore, an opening adapted to the loading vehicle is provided on one side of the drying chamber for the loading vehicle to enter and exit. A baffle that can block and open / close the opening is movably connected to the opening. The baffle consists of a horizontal baffle and a vertical baffle. The lower side of the horizontal baffle is torque-rotatably connected to the bottom wall of the drying chamber, and the vertical baffle is torque-rotatably connected to the vertical opening. This allows the loading vehicle's load-bearing flatbed and support column to freely enter and exit the drying chamber by flipping the baffle when they come into contact with it.

[0007] Furthermore, the drying chamber is equipped with a push-out mechanism, which extends to abut against the loading vehicle.

[0008] Furthermore, a sealing element is provided on the baffle, and the sealing element is adapted to abut against the opening.

[0009] Furthermore, it also includes a circulation pipe, with an air supply pipe connected to one side of the drying box and an exhaust pipe connected to the other side, and the circulation pipe connecting the exhaust pipe and the drying box.

[0010] The present invention also provides a method for drying boards, characterized in that: Step 1. Pre-treatment of the boards: Before the drying begins, the boards are pre-treated, including the removal of excess foreign matter.

[0011] Step 2. Set drying parameters: Set the drying oven temperature to 60℃ and the relative humidity to 30%.

[0012] Step 3. Start the circulation system and use sensors to monitor the humidity of the boards regularly: The circulation system includes a fan and a humidity balancing device. The fan blows air, and humidity sensors are installed inside the baking oven to monitor the humidity of the boards in real time. The humidity is adjusted and stabilized regularly by the humidity balancing device.

[0013] Step 4. Set up the PLC controller to control the circulation system: preset the appropriate humidity and temperature range for drying the boards into the PLC controller, and electrically connect the PLC controller to the circulation system to achieve automatic control.

[0014] Step 5. Change the heating direction periodically: During the heating process, the heating direction is changed every 25 minutes, and each heating is done from one side only. During the drying process, the oven temperature is increased by 3°C every 2 hours, gradually increasing from 50°C to 68°C.

[0015] Step 6. Controlling Heat Dissipation: After heating is completed in the drying oven, start the drying oven's heat dissipation system for 6-12 hours. During this process, the drying oven temperature decreases by 4°C every 2 hours until the heat dissipation finally ends, at which point the drying oven temperature drops to 44°C. At this point, the dried boards are obtained, and the corresponding high-temperature gas has cooled down.

[0016] Furthermore, it also includes a circulation system, in which the heat dissipation system introduces gas at a temperature higher than 44°C into the circulation system and circulates it to another drying chamber.

[0017] Compared with the prior art, the technical solution of this application has the following beneficial effects:

[0018] 1. This board drying device, by setting up a top support component that can push the board out of the slot, makes the board fully exposed, allowing the drying component to dry, avoiding uneven drying and improving the drying effect.

[0019] 2. This board drying device uses an elastic element to drive a pressure plate to press the board up and down, and at the same time uses a slot to restrict the left and right movement trajectory of the board. Compared with the single lower end limit of the slot, the limiting effect is better, and the limiting part is evenly stressed, avoiding pressure marks that damage the board.

[0020] 3. This board drying device, through the setting of connecting rods and pressure plates, allows the loader to break open the horizontal and vertical baffles, so that the boards can be moved in and out of the drying box without opening and closing the box door, making it convenient and quick to use.

[0021] 4. This board drying method avoids carbonization of the boards by controlling the temperature and balancing the humidity within a suitable parameter range, and optimizes the board drying efficiency. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the drying oven structure of the present invention;

[0023] Figure 2 This is a schematic diagram (front view) of the loading vehicle structure of the present invention;

[0024] Figure 3 This is a schematic diagram (rear view) of the loading vehicle structure of the present invention;

[0025] Figure 4 This is a schematic diagram of the internal structure of the loading vehicle of the present invention;

[0026] Figure 5 This is a schematic diagram of the loading vehicle when the vehicle is jacked up;

[0027] Figure 6 This is a reference diagram showing the usage state of the present invention.

[0028] In the diagram: 1. Drying oven; 11. Longitudinal baffle; 12. Transverse baffle; 2. Air duct; 21. Exhaust duct; 22. Circulation duct; 3. Loading vehicle; 31. Lifting plate; 4. Pressure plate; 41. Support column; 42. Elastic component; 5. Sheet metal; 6. Motor; 61. Screw. Detailed Implementation

[0029] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention.

[0030] Please see Figure 1-4 This application discloses a board drying device, comprising a drying chamber 1 and a loading vehicle 3. The drying chamber 1 is equipped with drying components, and the loading vehicle 3 has several slots on its carrying plate. Boards 5 are inserted into the slots, and the slots are equipped with lifting mechanisms.

[0031] A top support assembly is provided so that when the top support assembly rises, it causes the plate 5 to rise above the slot and be fully exposed. An elastic element 42 is fixed on one side of the bearing plate, and the other end of the elastic element 42 is connected to a longitudinally extending column 41. The other end of the column 41 is connected to a pressure plate 4 that extends horizontally to the top of the bearing plate, so that a clamping area for clamping the plate 5 is formed between the pressure plate 4 and the top support assembly.

[0032] In traditional devices, the plate 5 is clamped by a clamping seat, creating a drying blind zone. This device, however, features a top support component that pushes the plate 5 out of the slot, fully exposing it. When the plate 5 is pushed out, the elastic element 42 is stretched, causing its elastic potential energy to press the pressure plate 4 against the plate 5. Even with the side face of the plate 5 fully exposed, the device still maintains its restraining effect, ensuring the plate 5 is fixed while avoiding a drying blind zone, thus improving the drying effect. Furthermore, during transportation, the plate 5 is subject to bumps due to inertia or uneven roads. This device, through vertical pressing and horizontal limiting of the slot, ensures that the contact points between the plate 5 and the loading vehicle 3 are evenly stressed, improving the fixing effect of the plate 5. Compared to designs where only the lower end of the clamping seat limits the plate 5, this device also prevents damage to the plate 5.

[0033] The top support assembly that smoothly pushes plate 5 out of the slot can be implemented in various ways; please refer to [link / reference]. Figure 4-5 This application provides a preferred embodiment, the specific structure of which is as follows: the top support assembly includes a lifting plate 31, the bearing plate is hollow, a motor 6 is provided inside, the output shaft of the motor 6 is coaxially connected to a screw 61, the screw 61 is threadedly connected to any lifting plate 31, so that when the screw 61 rotates, it drives the lifting plate 31 to rise and fall in the slot, and a connecting rod is fixedly connected between each lifting plate 31.

[0034] In this embodiment, the lifting plate 31, which is threadedly connected to the screw 61, causes the screw 61 to rotate and drive the lifting plate 31 to rise and fall, thereby adjusting the position of the plate 5.

[0035] Please see Figure 1 and Figure 6An opening adapted to the loading vehicle 3 is provided on one side of the drying chamber 1 for the loading vehicle 3 to enter and exit. A baffle that can block and open the opening is movably connected to the opening. The baffle consists of a transverse baffle 12 and a longitudinal baffle 11. The lower side of the transverse baffle 12 is torque-rotatably connected to the bottom wall of the drying chamber 1, and the longitudinal baffle 11 is torque-rotatably connected to the longitudinal opening. This allows the loading vehicle 3 to freely enter and exit the drying chamber 1 when the loading plate and support column 41 abut against the baffle.

[0036] In traditional devices, the entrance to the drying chamber 1 is closed by a door. The door is large and requires a locking mechanism. The loading vehicle 3 must open and close the door before entering or exiting. This simplifies the operation. This device covers the entrance with a horizontal baffle 12 and a vertical baffle 11. The horizontal and vertical baffles have a certain torque, which allows them to maintain a closed opening under natural conditions and flip open under external force. This design eliminates the need to open and close the door, allowing the sheet material 5 to be moved into and out of the drying chamber 1, making it convenient and quick to use.

[0037] Furthermore, the drying chamber 1 is equipped with a push-out mechanism, which can extend to meet the loading vehicle 3.

[0038] The device can be manually flipped over to pull out the loading vehicle 3, or it can be equipped with a push-out mechanism that extends to push out the loading vehicle 3 directly after the sheet material 5 has been dried, making it easy to remove.

[0039] Furthermore, a sealing element is provided on the baffle, and the sealing element fits into the opening.

[0040] Since the device uses baffles to block the openings, in order to ensure the sealing of the drying chamber 1 and the drying efficiency, sealing strips, gaskets or sealing wool strips are used to seal the tiny gaps and improve the sealing performance.

[0041] Please see Figure 1 It also includes a circulation pipe 22, and one side of the drying oven 1 is connected to an air supply pipe 2, while the other side is connected to an exhaust pipe.

[0042] 21. The circulation pipe 22 is connected between the exhaust pipe 21 and the drying box 1.

[0043] The device is equipped with an air duct 2 to transport gas for preheating the interior of the drying chamber 1, thereby reducing the energy consumption of the drying components for drying the sheet material 5, achieving energy conservation and emission reduction. The gas used for preheating can be purified high-temperature exhaust gas generated by other machines. A temperature sensor is installed at the valve in the exhaust duct 21. When the gas to be discharged from the drying chamber 1 exceeds the preset value, the valve of the exhaust duct 21 is closed, and the circulation pipe 22 circulates the high-temperature gas to preheat another drying chamber 1, thereby avoiding non-compliant emissions. When the temperature is lower than the preset temperature, preferably 44℃, normal emissions are achieved.

[0044] The working principle of the above embodiments is as follows:

[0045] When using the device, the pressure plate 4 is raised to insert the sheet material 5 into the slot for initial fixation. Then, the pressure plate 4 is lowered, and under the action of the elastic element 42, the pressure plate 4 holds the sheet material 5, so that the slot and the pressure plate 4 together restrict the sheet material 5, making it firmly fixed and the force on the sheet material 5 even, avoiding damage to the sheet material 5. When taking out the loading vehicle 3, it is directly pushed in and pushed out using the ejection mechanism to open the baffle, making it convenient and quick to take out. When drying begins, the motor 6 is started, so that the lifting plate 31 drives the sheet material 5 to rise until it is exposed outside the slot, ensuring that the sheet material 5 is completely dried.

[0046] The present invention also provides a method for drying boards, characterized in that:

[0047] Step 1. Pre-treatment of board 5: Before drying begins, board 5 is pre-treated, including the removal of excess foreign matter;

[0048] This can be accomplished using a vibrating screen and a wind-powered dust collector to ensure that the surface of board 5 is clean and to prevent impurities from covering the board 5 and affecting its drying efficiency.

[0049] Step 2. Set drying parameters: Set the drying oven temperature to 60℃ and the relative humidity to 30%;

[0050] Setting appropriate temperature and humidity improves drying efficiency and effectiveness. The relatively low relative humidity will help moisture evaporate from board 5 more quickly, while the lower temperature will help prevent board 5 from overheating and causing cracking, carbonization, or deformation.

[0051] Step 3. Start the circulation system and use sensors to monitor the humidity of board 5 regularly: The circulation system includes a fan and a humidity balancing device. The fan blows air and a humidity sensor is installed inside the baking oven to monitor the humidity of board 5 in real time. The humidity is adjusted and stabilized regularly by the humidity balancing device.

[0052] Ensure that hot air flows evenly over board 5 and balances humidity, while avoiding excessive humidity which would reduce drying efficiency and excessively low humidity which would cause carbonization in some areas of board 5. Adjust the heating and circulation system according to humidity data to ensure that board 5 is dried at the appropriate humidity and temperature.

[0053] Step 4. Set up the PLC controller to control the circulation system: preset the suitable humidity and temperature range of the drying board 5 into the PLC controller, and connect the PLC controller to the circulation system to achieve automatic control.

[0054] This allows the system to automatically adjust heating and circulation parameters based on the humidity and temperature of the sheet material 5. In this way, the system can automatically optimize its operation according to real-time needs, improving drying efficiency.

[0055] Step 5. Change the heating direction periodically: During the heating process, change the heating direction every 25 minutes, with each heating cycle being unidirectional. During the drying process, the oven temperature increases by 3°C every 2 hours, gradually increasing from 50°C to 68°C.

[0056] By changing the heating direction and gradually increasing the heat, the problems of uneven drying, deformation of board 5, and cracking of board 5 due to excessively rapid temperature rise are avoided, and the drying is more uniform, thus improving the drying efficiency.

[0057] Step 6. Controlling heat dissipation: After heating is completed in the drying oven, start the drying oven heat dissipation system for 6-12 hours. During this process, the drying oven temperature decreases by 4℃ every 2 hours until the heat dissipation is finally stopped, at which point the drying oven temperature drops to 44℃. At this point, the dried board material 5 is obtained, and the corresponding high-temperature gas has cooled down.

[0058] By gradually dissipating heat, the high-temperature gas is cooled before being discharged, thus avoiding the danger and pollution caused by directly discharging high-temperature gas without meeting standards.

[0059] Furthermore, it also includes a circulation system, in which the heat dissipation system introduces gas above 44°C into the circulation system and circulates it to another drying chamber 1 through the circulation system;

[0060] Factories typically require significant energy input to maintain internal temperatures. Directly emitting high-temperature gas usually indicates that the gas is not being effectively cooled, a sign of energy waste that contradicts sustainable development principles. This device, through the installation of a circulation pipe 22 and a temperature sensor, ensures that the exhaust pipe 21 valve closes before the temperature drops below 44°C, allowing the circulation pipe 22 to cool the high-temperature gas.

[0061] Another drying oven 1 is preheated by circulating warm gas, thus utilizing the gas to save energy.

[0062] Although embodiments of the 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 invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A board drying device, comprising a drying chamber (1) and a loading vehicle (3), wherein the drying chamber (1) is provided with a drying assembly, characterized in that: The loading vehicle (3) has several slots on its carrying plate, and plates (5) are inserted into the slots. A top support assembly is installed in the slots so that when the top support assembly rises, it drives the plates (5) to rise above the slots and be fully exposed. An elastic member (42) is fixed on one side of the carrying plate, and a longitudinally extending column (41) is connected to the other end of the elastic member (42). A pressure plate (4) extending horizontally to the top of the carrying plate is connected to the other end of the column (41), so that a clamping area for clamping the plates (5) is formed between the pressure plate (4) and the top support assembly.

2. The board drying device according to claim 1, characterized in that: The top support assembly includes a lifting plate (31). The bearing plate is hollow and a motor (6) is installed inside it. The output shaft of the motor (6) is coaxially connected to a screw (61). The screw (61) is threadedly connected to any lifting plate (31), so that when the screw (61) rotates, it drives the lifting plate (31) to rise and fall in the slot. Each lifting plate (31) is fixedly connected to a connecting rod.

3. The board drying device according to claim 1, characterized in that: The drying chamber (1) has an opening on one side that is adapted to the loading vehicle (3) for the loading vehicle (3) to enter and exit. The opening is movably connected to a baffle that can block and open the opening. The baffle consists of a transverse baffle (12) and a longitudinal baffle (11). The lower side of the transverse baffle (12) is torque-rotatably connected to the bottom wall of the drying chamber (1). The longitudinal baffle (11) is torque-rotatably connected to the longitudinal opening, so that when the load-bearing plate and support column (41) of the loading vehicle (3) abut against the baffle, the baffle can be flipped to freely enter and exit the drying chamber (1).

4. The board drying device according to claim 3, characterized in that: The drying box (1) is equipped with a push-out mechanism, which can extend to abut against the loading vehicle (3).

5. The board drying device according to claim 4, characterized in that: The baffle is provided with a sealing element, which is adapted to abut against the opening.

6. A board drying apparatus according to any one of claims 1-5, characterized in that: It also includes a circulation pipe (22), one side of the drying box (1) is connected to an air supply pipe (2), and the other side is connected to an exhaust pipe (21). The circulation pipe (22) is connected between the exhaust pipe (21) and the drying box (1).

Images