A green and environment-friendly plate and a preparation process thereof

Abstract

The application relates to the field of plate processing, and discloses a preparation process of green and environment-friendly plate material, wherein first, activated carbon powder is uniformly sprinkled on a veneer through a sprinkling device, then a film is covered on the activated carbon powder, then glue is applied on the veneer, then gluing between another veneer and the veneer provided with the activated carbon powder is completed, and the process is repeated to obtain the plate material provided with the activated carbon powder; in the scheme, during the process that the feeding member in the sprinkling device drags the activated carbon powder to be uniformly sprinkled towards the conveying belt, the feeding rack moves on one side and sprinkles the activated carbon powder towards the conveying belt through the cooperation of the rack, the gear and the power transmission piece, the activated carbon powder falling on the conveying belt can be uniformly distributed in a straight line, and the thickness of the activated carbon powder on the conveying belt, i.e. the thickness of the activated carbon powder on the veneer, can be changed by changing the transmission ratio of the power transmission piece.

Description

Technical Field

[0001] This invention relates to the field of sheet metal, specifically to the field of sheet metal processing, and particularly to a green and environmentally friendly sheet metal and its preparation process. Background Technology

[0002] Plywood is a common type of board material, made by gluing together several thin wooden boards with adhesives. With the increasing emphasis on environmental protection, using environmentally friendly materials to improve the performance of boards is a current trend. For example, Chinese invention patent CN101711886B proposes an activated carbon air purification board, which adds activated carbon powder to the raw materials of the board to purify indoor air. However, it has some shortcomings: It involves mixing adhesives, organosilicon water-repellent agents, and expanded perlite, then adding powdered activated carbon and mixing again before forming the board. During this process, the presence of liquids such as adhesives can coat the activated carbon powder, forming an "amber"-like structure. This significantly weakens the air-purifying ability of the activated carbon, thus greatly diminishing the board's supposed function of purifying indoor air. Therefore, this invention proposes a green and environmentally friendly board and its preparation process that does not affect the air-purifying ability of activated carbon. Summary of the Invention

[0003] To address the problems mentioned in the background above, this invention provides a green and environmentally friendly board material and its preparation process.

[0004] To achieve the above-mentioned technical objectives, the technical solution adopted by the present invention is as follows.

[0005] A process for preparing a green and environmentally friendly board includes thin wood panels and activated carbon powder;

[0006] The steps are as follows:

[0007] Step 1: Sprinkle activated carbon powder evenly onto a thin wooden board;

[0008] Step 2: Cover the activated carbon powder with a thin film;

[0009] Step 3: Apply glue to the parts of the thin wooden board that are not covered by activated carbon powder and film;

[0010] Step 4: Cover the thin wooden board with activated carbon powder by another thin wooden board, and glue the two thin wooden boards together.

[0011] Step 5: Repeat steps 1-4 to obtain a plate with activated carbon powder.

[0012] An apparatus for performing a green and environmentally friendly board preparation process includes a spraying device for uniformly spraying activated carbon powder onto a thin board.

[0013] As a further improvement and optimization of the present invention, the spraying device includes a frame, on which a conveyor and a spraying mechanism are installed. The conveyor is used to support the thin wooden board and to pull the thin wooden board to move. The spraying mechanism is located above the conveyor. The spraying mechanism includes a connecting frame connected to the frame and a feeding component and a spraying component arranged on the connecting frame. An inclined guide plate is provided between the feeding component and the spraying component.

[0014] As a further improvement and optimization of the present invention, the feeding component includes a conveyor belt and a synchronous belt assembly mounted on a connecting frame. The conveying direction of the conveyor belt and the running direction of the synchronous belt assembly are perpendicular to each other. The synchronous belt assembly is poweredly connected to a motor mounted on the connecting frame.

[0015] A feeding frame is slidably mounted on the connecting frame along the running direction of the synchronous belt set. The feeding frame is located above the conveyor belt and is driven by the synchronous belt set to move back and forth. The feeding frame is provided with a cylindrical feeding chamber. A feeding screw parallel to the sliding direction of the feeding frame is installed in the feeding chamber. A gear shaft parallel to the conveying direction of the conveyor belt is also installed on the feeding frame. A gear is provided at the input end of the gear shaft. The gear meshes with a rack provided on the connecting frame and parallel to the sliding direction of the feeding frame. The output end of the gear shaft is connected to the feeding screw through a power transmission component.

[0016] As a further improvement and optimization of the present invention, an inlet is provided at the highest point of the outer circular surface of the feeding chamber, and an outlet is provided at the lowest point of the outer circular surface of the feeding chamber. An outlet pipe extends from the lower opening of the outlet, and there are two outlets respectively located near the two ends of the feeding chamber.

[0017] The feeder is equipped with a secondary hopper. The bottom of the secondary hopper is connected to the feed inlet, and the top of the secondary hopper is connected to the main hopper set on the frame through a connecting pipe.

[0018] As a further improvement and optimization of the present invention, a connecting pin extends from the synchronous belt of the synchronous belt assembly, and a vertically arranged sliding hole is provided on the feeder, with the end of the connecting pin slidingly located in the sliding hole.

[0019] As a further improvement and optimization of the present invention, the power transmission component includes a gearbox.

[0020] As a further improvement and optimization of the present invention, the highest point of the guide plate is located below the discharge end of the conveyor belt;

[0021] The material spraying component includes a partition parallel to the conveyor belt conveying direction and a fixed bracket connected to the connecting frame. One end of the partition is in contact with the lowest point of the guide plate. The upper end face of the partition is composed of two inclined surfaces and the distance between the two inclined surfaces decreases from bottom to top. Several partitions are arranged in an array along the running direction of the synchronous belt group.

[0022] A movable bracket is slidably installed on the fixed bracket along the conveying direction of the conveyor belt. The movable bracket is driven to move by the linear module set on the fixed bracket. The side of the movable bracket facing the guide plate is planar and the planar surface of the movable bracket is provided with a clearance opening for avoiding the partition. Initially, the movable bracket is in contact with the lowest point of the guide plate.

[0023] As a further improvement and optimization of the present invention, a guide rod parallel to the conveying direction of the conveyor belt is provided on the movable support, and a support extends from the end of the partition away from the guide plate. The support and the guide rod form a sliding connection. A spring is sleeved on the outside of the guide rod, and the elastic force of the spring is used to drive the partition to move closer to the guide plate.

[0024] Compared with the prior art, the beneficial effects of this invention are as follows:

[0025] I. In this solution, the process of the feeding component pulling the activated carbon powder towards the conveyor belt and evenly distributing it is achieved through the cooperation of racks, gears, and power transmission components, so that the feeding frame moves while simultaneously distributing activated carbon powder towards the conveyor belt:

[0026] 1. During the movement of the feeding rack, there is an initial acceleration phase, a final deceleration phase, and a constant speed phase in between. If the rotation of the feeding screw and the movement of the feeding rack are not driven by a single power source, but by two independent power sources, then during the constant speed phase of the feeding rack, as long as the feeding screw maintains a constant rotation speed, a constant amount of activated carbon powder can be sprinkled onto the conveyor belt through the discharge pipe. However, during the acceleration or deceleration phases of the feeding rack, it is difficult for the feeding screw to maintain a corresponding change in speed with the feeding rack, which leads to the amount of activated carbon powder sprinkled onto the conveyor belt not being constant. In other words, the activated carbon powder distributed along the straight line on the conveyor belt is relatively uniform in the middle, but the distribution at the starting and ending points is uneven, which will affect the uniformity of the activated carbon powder that finally falls onto the thin wooden board.

[0027] 2. In contrast, in this solution, the rotation of the feeding screw is driven by the movement of the feeding frame. That is to say, if the feeding frame moves at a constant speed, the feeding screw will also rotate at a constant speed. If the feeding frame accelerates or decelerates, the feeding screw will also accelerate or decelerate accordingly. In this way, it can be ensured that the activated carbon powder falling onto the conveyor belt is evenly distributed in a straight line.

[0028] 3. Furthermore, the power transmission component includes a gearbox. By changing the transmission ratio of the power transmission component through the gearbox, the amount of activated carbon powder that is pulled onto the conveyor belt per unit time when the feeding frame moves is changed. That is, changing the transmission ratio can change the thickness of the activated carbon powder on the conveyor belt, that is, change the thickness of the activated carbon powder on the thin wooden board.

[0029] II. In this scheme, the activated carbon powder falling onto the thin wooden board each time is linearly distributed, thus enabling it to... Figure 1 As shown, quickly distribute the activated carbon powder onto the thin wooden board. Attached Figure Description

[0030] Figure 1 A schematic diagram of a thin wooden board with activated carbon powder distributed on its upper surface;

[0031] Figure 2 This is a schematic diagram of the material spraying device;

[0032] Figure 3 This is a schematic diagram of the material spraying mechanism;

[0033] Figure 4 Schematic diagram of feeding components and guide plate Figure 1 ;

[0034] Figure 5 Schematic diagram of feeding components and guide plate Figure 2 ;

[0035] Figure 6 This is a partial schematic diagram of the feeding component;

[0036] Figure 7 This is a sectional view of the feeding rack;

[0037] Figure 8 This is a schematic diagram of the material spraying component and the material guide plate;

[0038] Figure 9 This is a partial sectional view of the material spraying component and the guide plate.

[0039] The labels in the attached diagram are:

[0040] 100. Frame; 101. Conveying component; 102. Main hopper; 103. Connecting pipe; 200. Spraying mechanism; 300. Connecting frame; 400. Feeding component; 401. Conveyor belt; 402. Secondary hopper; 403. Motor; 404. Synchronous belt assembly; 405. Connecting pin; 406. Feeding rack; 407. Inlet; 408. Outlet pipe; 409. Feeding screw; 410. Power transmission component; 411. Rack; 412. Gear; 413. Vibrating component; 500. Spraying component; 501. Fixed bracket; 502. Linear module; 503. Movable bracket; 504. Partition; 505. Guide rod; 506. Spring 1; 600. Guide plate. Detailed Implementation

[0041] To further illustrate the technical means and effects of the present invention in achieving its intended purpose, the following detailed description of the specific implementation methods, structures, features, and effects of the present invention, in conjunction with the accompanying drawings and preferred embodiments, is provided below.

[0042] A green and environmentally friendly board material, comprising thin wood panels and activated carbon powder.

[0043] A manufacturing process for a green and environmentally friendly board material includes the following steps:

[0044] Firstly, as Figure 1 As shown, the activated carbon powder is evenly sprinkled onto the thin wooden board;

[0045] Then, a breathable film, such as expanded polytetrafluoroethylene film, is applied over the activated carbon powder.

[0046] Then apply glue to the parts of the thin wooden board that are not covered by activated carbon powder and film;

[0047] Finally, using existing technology, another thin wooden board is glued to the thin wooden board with activated carbon powder. This process is repeated to produce a board with activated carbon powder. Since the activated carbon powder is not mixed with the glue, it does not form an amber-like structure. Therefore, the performance of the activated carbon can be maximized, and the purification ability of the board is greatly enhanced.

[0048] In the above process, the application of glue can be done manually or by existing machinery, and the gluing between the thin wood boards also uses existing technology. Therefore, these two steps will not be described in detail.

[0049] In the above process, considering the subsequent gluing of the veneer boards, the activated carbon powder needs to be evenly sprinkled onto the veneer boards, such as... Figure 1 As demonstrated, if manual methods are used, the workload is very large and the efficiency is very low. Therefore, the present invention also proposes an apparatus for performing a green and environmentally friendly board preparation process, including a spraying device for uniformly spraying activated carbon powder onto a thin board.

[0050] Reference Figure 2 The spreading device includes a frame 100, on which a conveyor 101 and a spreading mechanism 200 are mounted. The conveyor 101 is used to support and move the thin wooden boards, and can be based on existing conveyor belt technology, or alternatively... Figure 1 As shown, it consists of several rotating rollers, which are driven to rotate by electric motors, thus moving the thin wooden board.

[0051] Reference Figure 2 The spraying mechanism 200 is located above the conveyor 101 and includes a connecting frame 300 connected to the frame 100, and a feeding component 400 and a spraying component 500 disposed on the connecting frame 300. The former is used to uniformly distribute the activated carbon powder along the width or length direction of the thin board, and the latter is used to receive the uniformly distributed activated carbon powder and pull it to the upper end face of the thin template to form a spraying mechanism. Figure 1 The distribution shown can be improved by uniformly distributing the activated carbon powder along the length of the thin wood board. This solution shows a uniform distribution along the width of the thin wood board.

[0052] In addition, a guide plate 600 is provided between the feeding component 400 and the sprinkling component 500 to guide the powder from the former to the latter.

[0053] 1. Feeding component 400:

[0054] Reference Figure 4 and Figure 5 The feeding component 400 includes a conveyor belt 401 and a synchronous belt group 404 mounted on the connecting frame 300. The conveying direction of the former is perpendicular to the running direction of the latter. One is parallel to the length direction of the thin board and the other is parallel to the width direction of the thin board. The synchronous belt group 404 is driven by a motor 403 mounted on the connecting frame 300.

[0055] A feeding frame 406 is slidably mounted on the connecting frame 300 along the running direction of the synchronous belt set 404. The feeding frame 406 is located above the conveyor belt 401. Further, refer to... Figure 6 A connecting pin 405 extends from the synchronous belt of the synchronous belt assembly 404. The feeder 406 is provided with vertically arranged sliding holes. The end of the connecting pin 405 slides in the sliding hole. When the motor 403 runs and drives the synchronous belt assembly 404 to run, the feeder 406 can be driven to reciprocate through the cooperation of the connecting pin 405 and the sliding hole.

[0056] Reference Figure 7The feeding rack 406 has a cylindrical feeding chamber, in which a feeding screw 409 is installed. The feeding screw 409 is parallel to the sliding direction of the feeding rack 406. A gear shaft parallel to the conveying direction of the conveyor belt 401 is also installed on the feeding rack 406. A gear 412 is provided at the input end of the gear shaft. The gear 412 meshes with a rack 411 provided on the connecting frame 300 and parallel to the sliding direction of the feeding rack 406. The output end of the gear shaft is connected to the feeding screw 409 through a power transmission component 410.

[0057] A feed inlet 407 is provided at the highest point of the outer circular surface of the feeding chamber, and a discharge outlet is provided at the lowest point of the outer circular surface of the feeding chamber. A discharge pipe 408 extends from the lower opening of the discharge outlet. There are two discharge outlets, which are respectively located near the two ends of the feeding chamber, and there are two corresponding discharge pipes 408.

[0058] Reference Figure 2 and Figure 6 A secondary hopper 402 is installed on the feeding rack 406. The bottom of the secondary hopper 402 is connected to the feed inlet 407. The top of the secondary hopper 402 is connected to the main hopper 102 set on the frame 100 through a connecting pipe 103. Preferably, in order to ensure that the activated carbon powder in the main hopper 102 falls smoothly into the secondary hopper 402, an existing stirring technology can be installed in the main hopper 102.

[0059] The working process of the feeding component 400 is as follows:

[0060] The activated carbon powder in the main hopper 102 flows to the auxiliary hopper 402 and enters the feeding chamber through the feed inlet 407.

[0061] The motor 403 starts and drives the synchronous belt group 404 to run, which in turn drives the feeding frame 406 to move. At the same time, through the cooperation of the rack 411 and the gear 412, the gear shaft is driven to rotate. The gear shaft drives the feeding screw 409 to rotate through the power transmission component 410, which pulls the activated carbon powder in the feeding chamber toward the discharge pipe 408 and finally falls onto the upper surface of the conveyor belt 401 through the discharge pipe 408.

[0062] When the feeder 406 moves to its furthest distance, the activated carbon powder is evenly distributed in a straight line on the conveyor belt 401. Then, the conveyor belt 401 runs and pulls the activated carbon powder toward the guide plate 600. After that, the feeder 406 moves in the opposite direction and continues to sprinkle the activated carbon powder on the upper surface of the conveyor belt 401.

[0063] The reason why two discharge pipes 408 are set in the above process is that during the reciprocating movement of the feeding frame 406, the forward movement and the reverse movement are opposite, which causes the rotation direction of the feeding screw 409 to be opposite as well. Therefore, two discharge pipes 408 are set accordingly.

[0064] In the above process, through the cooperation of rack 411, gear 412 and power transmission component 410, the feeding frame 406 moves while simultaneously sprinkling activated carbon powder onto the conveyor belt 401. The significance of this is:

[0065] 1. During the movement of the feeding rack 406, there is an initial acceleration phase, a final deceleration phase, and a constant speed phase in between. If the rotation of the feeding screw 409 and the movement of the feeding rack 406 are not driven by a single power source, but by two independent power sources (i.e., motor technology), then during the constant speed phase of the feeding rack 406, as long as the feeding screw 409 maintains a constant speed rotation, a constant amount of activated carbon powder can be sprinkled onto the conveyor belt 401 through the discharge pipe 408. However, during the acceleration or deceleration phases of the feeding rack 406, it is difficult for the feeding screw 409 to maintain a corresponding change in speed with the feeding rack 406. Consequently, the amount of activated carbon powder sprinkled onto the conveyor belt 401 is not constant. In other words, the activated carbon powder distributed along the straight line on the conveyor belt 401 is relatively uniform in the middle, but the distribution at the starting and ending points is uneven, which will affect the uniformity of the activated carbon powder that finally falls onto the thin wooden board.

[0066] 2. In contrast, in this solution, the rotation of the feeding screw 409 is driven by the movement of the feeding frame 406. That is, when the feeding frame 406 moves at a constant speed, the feeding screw 409 also rotates at a constant speed. When the feeding frame 406 accelerates or decelerates, the feeding screw 409 also accelerates or decelerates accordingly. In this way, it can be ensured that the activated carbon powder falling onto the conveyor belt 401 is evenly distributed in a straight line.

[0067] In a preferred embodiment, the power transmission component 410 includes a gearbox, which means that the transmission ratio of the power transmission component 410 can be changed by the gearbox, thereby changing the amount of activated carbon powder that the feeding screw 409 pulls onto the conveyor belt 401 per unit time when the feeding rack 406 moves. That is, changing the transmission ratio can change the thickness of the activated carbon powder on the conveyor belt 401.

[0068] Preferred embodiments, refer to Figure 6To ensure the activated carbon powder in the auxiliary hopper 402 falls smoothly into the feeding chamber, a vibration component 413 can be installed on the auxiliary hopper 402. Specifically, the vibration component 413 includes an eccentric wheel mounted on the outer surface of the auxiliary hopper 402. The eccentric wheel is connected to the power transmission component 410 via belt drive. Thus, when the feeding frame 406 moves, the rotation of the eccentric wheel generates vibration, ensuring the activated carbon powder in the auxiliary hopper 402 falls smoothly into the feeding chamber. Based on this, referring to... Figure 3 The connecting frame 300 includes a support body 1 and a support body 2. The support body 1 is connected to the frame 100. The support body 2 and the support body 1 form a sliding fit in the vertical direction, and a spring 2 is provided on the upper and lower sides of the sliding connection between the two. The feeding frame 406 is installed on the support body 2, and the conveyor belt 401 is installed on the support body 1.

[0069] II. Spraying component 500:

[0070] Reference Figure 4 The guide plate 600 is arranged at an angle, and its highest point is located below the discharge end of the conveyor belt 401.

[0071] Reference Figure 8 and Figure 9 The material spraying component 500 includes a partition 504 parallel to the conveying direction of the conveyor belt 401. One end of the partition 504 is attached to the lowest point of the guide plate 600. The upper surface of the partition 504 is composed of two inclined surfaces, and the distance between the two inclined surfaces decreases from bottom to top. Several partitions 504 are arranged in an array along the running direction of the synchronous belt group 404.

[0072] The material spraying component 500 also includes a fixed bracket 501 connected to the connecting frame 300, a movable bracket 503 slidably mounted on the fixed bracket 501, and a linear module 502 for driving the movable bracket 503 to move. The sliding direction of the movable bracket 503 is parallel to the conveying direction of the conveyor belt 401. The linear module 502 can be an electric telescopic rod technology or a linear screw technology, which are existing technologies and will not be described in detail.

[0073] The movable support 503 has a planar shape on the side facing the guide plate 600, and the planar surface of the movable support 503 is provided with a clearance opening for avoiding the partition 504. Initially, the movable support 503 is in contact with the lowest point of the guide plate 600. The plane of the movable support 503 restricts the lowest point of the guide plate 600. Even if the activated carbon powder falls onto the guide plate 600, it will be blocked by the plane of the movable support 503 and cannot continue to fall downward. When the linear module 502 drives the movable support 503 to move backward, the activated carbon powder can fall downward through the area between two adjacent partitions 504 onto the thin wooden board. After the equipment is used, the linear module 502 drives the movable support 503 forward to reset.

[0074] In a preferred embodiment, after prolonged use, a small amount of activated carbon powder will inevitably adhere to the partition 504, thus requiring regular cleaning. For ease of cleaning, refer to... Figure 9 The movable support 503 is provided with a guide rod 505 parallel to the conveying direction of the conveyor belt 401. The end of the partition 504 away from the guide plate 600 extends with a support, and the support and the guide rod 505 are slidably connected. A spring 506 is sleeved on the outside of the guide rod 505. The elastic force of the spring 506 is used to drive the partition 504 to move closer to the guide plate 600. Thus, when the movable support 503 moves to obstruct or allow the activated carbon powder to pass through, the partition 504 is kept in contact with the lowest point of the guide plate 600. When periodic cleaning is required, the movable support 503 moves back a long distance, which can take the partition 504 away from the guide plate 600, and then the partition 504 can be cleaned.

[0075] Working principle of the spreading device:

[0076] First, the motor 403 starts and drives the synchronous belt group 404 to run, which in turn drives the feeding frame 406 to move. At the same time, through the cooperation of the rack 411 and the gear 412, the gear shaft is driven to rotate. The gear shaft drives the feeding screw 409 to rotate through the power transmission component 410, which pulls the activated carbon powder in the feeding chamber toward the discharge pipe 408 and finally falls onto the upper surface of the conveyor belt 401 through the discharge pipe 408.

[0077] When the feeding rack 406 moves to its furthest distance, the activated carbon powder is evenly distributed in a straight line on the conveyor belt 401. Then, the conveyor belt 401 runs and pulls the activated carbon powder toward the guide plate 600. On the one hand, under the guidance of the guide plate 600, the activated carbon powder falls downward through the area between two adjacent partitions 504 onto the thin wooden board. On the other hand, the feeding rack 406 will move in the opposite direction and continue to sprinkle the activated carbon powder on the upper surface of the conveyor belt 401.

[0078] This process is repeated, drawing the activated carbon powder as... Figure 1 As shown, they are distributed on thin wooden boards.

[0079] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention in any way. Although the present invention has been disclosed above with reference to preferred embodiments, it is not intended to limit the present invention. Any person skilled in the art can make some modifications or alterations to the above-disclosed technical content to create equivalent embodiments without departing from the scope of the present invention. Any simple modifications, equivalent changes and alterations made to the above embodiments based on the technical essence of the present invention without departing from the scope of the present invention shall still fall within the scope of the present invention.

Claims

1. An apparatus for performing a green and environmentally friendly board manufacturing process, characterized in that, The equipment includes a spraying device for evenly sprinkling activated carbon powder onto a thin wooden board; The spraying device includes a frame (100), on which a conveyor (101) and a spraying mechanism (200) are mounted. The conveyor (101) is used to support the thin wooden board and to pull the thin wooden board to move. The spraying mechanism (200) is located above the conveyor (101). The spraying mechanism (200) includes a connecting frame (300) connected to the frame (100) and a feeding component (400) and a spraying component (500) arranged on the connecting frame (300). An inclined guide plate (600) is provided between the feeding component (400) and the spraying component (500). The feeding component (400) includes a conveyor belt (401) and a synchronous belt group (404) mounted on a connecting frame (300). The conveying direction of the conveyor belt (401) is perpendicular to the running direction of the synchronous belt group (404). The synchronous belt group (404) is poweredly connected to a motor (403) mounted on the connecting frame (300). A feeding frame (406) is slidably installed on the connecting frame (300) along the running direction of the synchronous belt group (404). The feeding frame (406) is located above the conveyor belt (401). The feeding frame (406) is driven by the synchronous belt group (404) to move back and forth. A cylindrical feeding chamber is provided inside the feeding frame (406). A feeding screw (409) parallel to the sliding direction of the feeding frame (406) is installed in the feeding chamber. A gear shaft parallel to the conveying direction of the conveyor belt (401) is also installed on the feeding frame (406). A gear (412) is provided at the input end of the gear shaft. The gear (412) meshes with a rack (411) provided on the connecting frame (300) and parallel to the sliding direction of the feeding frame (406). The output end of the gear shaft is connected to the feeding screw (409) through a power transmission component (410). A feed inlet (407) is provided at the highest point of the outer circular surface of the feeding chamber, and a discharge outlet is provided at the lowest point of the outer circular surface of the feeding chamber. A discharge pipe (408) extends from the lower opening of the discharge outlet. There are two discharge outlets, which are respectively located near the two ends of the feeding chamber. A secondary hopper (402) is installed on the feeding rack (406). The bottom of the secondary hopper (402) is connected to the feed inlet (407). The top of the secondary hopper (402) is connected to the main hopper (102) set on the frame (100) through a connecting pipe (103). The preparation process of green and environmentally friendly boards includes thin wood boards and activated carbon powder; The steps are as follows: Step 1: Sprinkle activated carbon powder evenly onto a thin wooden board; Step 2: Cover the activated carbon powder with a thin film; Step 3: Apply glue to the parts of the thin wooden board that are not covered by activated carbon powder and film; Step 4: Cover the thin wooden board with activated carbon powder by another thin wooden board, and glue the two thin wooden boards together. Step 5: Repeat steps 1-4 to obtain a plate with activated carbon powder.

2. The device according to claim 1, characterized in that, A connecting pin (405) extends from the synchronous belt of the synchronous belt assembly (404), and a vertically arranged sliding hole is provided on the feeder (406), with the end of the connecting pin (405) sliding inside the sliding hole.

3. The device according to claim 1, characterized in that, The power transmission component (410) includes a gearbox.

4. The device according to claim 1, characterized in that, The highest point of the guide plate (600) is located below the discharge end of the conveyor belt (401); The material spraying component (500) includes a partition (504) parallel to the conveying direction of the conveyor belt (401) and a fixed bracket (501) connected to the connecting frame (300). One end of the partition (504) is in contact with the lowest point of the guide plate (600). The upper end face of the partition (504) is composed of two inclined surfaces and the distance between the two inclined surfaces decreases from bottom to top. Several partitions (504) are arranged in an array along the running direction of the synchronous belt group (404). A movable bracket (503) is slidably installed on the fixed bracket (501) along the conveying direction of the conveyor belt (401). The movable bracket (503) is driven to move by the linear module (502) set on the fixed bracket (501). The movable bracket (503) is planar on the side facing the guide plate (600), and the plane of the movable bracket (503) is provided with a clearance opening for avoiding the partition plate (504). Initially, the movable bracket (503) is in contact with the lowest point of the guide plate (600).

5. The device according to claim 4, characterized in that, The movable support (503) is provided with a guide rod (505) parallel to the conveying direction of the conveyor belt (401). The end of the partition (504) away from the guide plate (600) extends with a support. The support and the guide rod (505) form a sliding connection. A spring (506) is sleeved on the outside of the guide rod (505). The elastic force of the spring (506) is used to drive the partition (504) to move closer to the guide plate (600).

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