Device for removing formaldehyde from plywood and using method thereof

Abstract

The invention discloses a device for removing formaldehyde from plywood and a using method of the device, and relates to the technical field of plywood processing. Comprising a placing frame, a steel frame is fixedly connected to the surface of the top end of the placing frame, a first mounting base is fixedly connected to the upper end of the placing frame and located on the inner side of the steel frame, a second mounting base is fixedly mounted on the upper end of the placing frame and located on one side of the first mounting base, and a support is fixedly welded to the surface of the second mounting base. Through the accessory structures of the first mounting seat and the second mounting seat, after the plywood is conveyed, a thermal expansion rod shape can be formed by utilizing the main partition plate and the auxiliary partition plate, so that the surface of the plywood can be heated, and meanwhile, the contact pressure with the plywood can be increased; the formaldehyde catalytic treatment device is simple in structure, can effectively catalyze produced formaldehyde, and can guide and clean water generated after catalysis in cooperation with a support structure, so that the manual cleaning workload is reduced.

Description

Technical Field

[0001] The invention relates to the technical field of plywood processing, and in particular to a device for removing formaldehyde from plywood and a use method thereof. Background Art

[0002] With the development of my country's marine economy, the demand for various types of transport ships, offshore platform structures and coastal defense ships has increased greatly. Various types of plywood are often used in cabin interior decoration, most of which use formaldehyde-based adhesives. Part of the residual formaldehyde in the plywood can be released through the channel between the plywood and the outside world, and the other part is sealed inside and cannot be released in a short time. It can only be gradually released with factors such as environmental changes and aging of the colloid. Therefore, the removal of formaldehyde is a long process, even up to more than ten years.

[0003] The utility model with announcement number CN217163835U discloses a formaldehyde extraction device for plywood that utilizes high temperature to remove formaldehyde molecules. The device is simple to operate and easy to use. By setting a purification structure, the formaldehyde in the plywood can be oxidized and then discharged, which not only does not pollute the environment, but also does not affect human health.

[0004] The above-mentioned prior art parts have certain shortcomings in actual use. Although they can meet the demand for formaldehyde extraction to a certain extent, their efficiency is relatively slow. For the formaldehyde treatment needs of large batches of plywood, they need a certain amount of time for absorption treatment. Summary of the invention

[0005] The purpose of the present invention is to provide a device for removing formaldehyde from plywood and a method for using the device to solve the above technical problems.

[0006] The purpose of the present invention can be achieved through the following technical solutions: A device for removing formaldehyde from plywood, comprising a display rack, a top surface of the display rack being fixedly connected to a steel frame, an upper end of the display rack being located inside the steel frame and being fixedly connected to a first mounting seat, an upper end of the display rack being located on one side of the first mounting seat and being fixedly mounted to a second mounting seat, a surface of the second mounting seat being welded and fixed to a support; The surface of the second mounting seat is rotatably connected to a connecting disk, one end of the connecting disk is fixedly mounted with a first cylinder, an output end of the first cylinder is fixedly connected to a heating tube, a side surface of the heating tube is fixedly connected to an inclined pin block, a surface of the inclined pin block is equidistantly provided with air holes, a surface of the inclined pin block is sleeved and connected to a guide seat, an inner surface of the guide seat is provided with a docking hole, an outer side of the guide seat is fixedly connected to a secondary partition, a surface of the secondary partition is provided with a rotary groove, a surface of the rotary groove is equidistantly fixedly connected to a catalyst sheet, and one group of the guide seats is fixedly connected to the outer side surface with a main partition.

[0007] As a further solution of the present invention: a guide frame is symmetrically welded and fixed on the top surface of the display rack, a first motor is fixedly installed on one side surface of the display rack, a gear disc is fixedly installed on the output end of the first motor, a toothed belt is sleeved and connected on the surface of the gear disc, a sleeve disc is rotatably connected on the inner side of the toothed belt, a loading belt is fixedly connected on the surface of the sleeve disc, a processing rack is fixedly connected to one end of the display rack, a conveying rack is fixedly connected to the inner side of the processing rack, and a placement rack is fixedly connected to one end of the conveying rack.

[0008] As a further solution of the present invention: a sleeve is fixedly installed on the top surface of the steel frame in the middle part, a connecting shaft is movably connected to the surface of the sleeve, a pressing arm is rotatably connected to the bottom surface of the connecting shaft, the inner surface of the pressing arm is rotatably connected to the edges on both sides with a wire sleeve, a bidirectional screw rod is rotatably connected to the surface of the wire sleeve, a sleeve plate is symmetrically fixedly connected to the inner surface of the steel frame, a column is embedded in the inner side of the sleeve plate, a positioning plate is fixedly connected to the bottom surface of the column, a groove is provided on the bottom surface of the positioning plate, an ultraviolet lamp is fixedly installed on the surface of the groove, a cross frame is welded and fixed to the surfaces of two of the sleeve plates, a second motor is fixedly installed on the surface of the cross frame, and the output end of the second motor is fixedly connected to the bidirectional screw rod.

[0009] As a further solution of the present invention: a motor is fixedly mounted on the surface of the first mounting seat, a transmission gear is fixedly mounted on the output end of the motor, a driven gear is rotatably connected to the surface of the first mounting seat near the upper end, the transmission gear and the driven gear are meshingly connected, an air guide pipe is fixedly connected to the inner side of the driven gear, one end of the air guide pipe is fixedly connected to a hollow tube, and an air guide strip is fixedly connected to the side surface of the hollow tube.

[0010] As a further solution of the present invention: the surface of the second mounting seat is provided with an anti-slip groove, the connecting plate is rotatably connected to the anti-slip groove, the surface of the connecting plate is welded with a slot, the side surface of the main partition is located at one end edge and is fixedly connected with an insert block, the insert block is embedded in the slot, the interior of the auxiliary partition is provided with a through cavity, the docking hole and the rotary groove are through-connected with the through cavity.

[0011] As a further solution of the present invention: the top surface of the support is fixedly connected to the bottom shell, the side surface of the bottom shell is fixedly connected to a connecting ear at one end edge, the surface of the connecting ear is rotatably connected to the second cylinder, the output end of the second cylinder is rotatably connected to the bracket, the surface of the bracket is fixedly connected to the inner shell, the side surface of the inner shell is symmetrically rotatably connected to the rotating joint, the surface of the rotating joint is fixedly connected to the linkage shell, the surface of the linkage shell is fixedly connected to the arc sleeve, the surface of the bracket is rotatably connected to the third cylinder at the bottom end, the arc sleeve is rotatably connected to the third cylinder, and the inner surface of the arc sleeve is fixedly connected to a sponge pad at one end edge.

[0012] A method for removing formaldehyde from plywood, comprising the following steps: 1. First, place the device in a closed environment, and then put the processed plywood in order along the edge of the guide frame. After the first motor drives the gear disc to rotate and the linkage sleeve disc operates, it will eventually drive the feeding belt to send the plywood out from the bottom gap of the guide frame, and then stay on the surface of the first mounting seat and the second mounting seat; Second, limit the extension length of the coupling shaft on the surface of the sleeve in advance according to the shape of this batch of plywood, and then control the operation of the second motor. Under the operation of the bidirectional screw driven by its output end, cooperate with the four corner limits of the sleeve plate and the column, the pressing arm will be deformed and finally drive the positioning plate to press against the surface of the plywood. Then turn on the ultraviolet lamp, and a certain formaldehyde conversion can be completed through the light; 3. In order to further increase the pressure on the surface of the plywood, the user can start the first cylinder. After the output end is recovered, the oblique pin block on the surface of the heating tube will interfere with the slot on the surface of the guide seat, thereby driving the corresponding main partition and auxiliary partition to expand outward, so that the formaldehyde inside the plywood can be further dissipated. After heating with the heating tube, under the influence of heat, the formaldehyde will be dissipated faster, and under the influence of the expansion shape of the main partition and auxiliary partition, the gap between adjacent plates will gradually shrink to reduce heat loss, which is more convenient for the temperature of the plywood surface to rise; 4. After the formaldehyde is released, the user can connect high-purity oxygen through the air pipe, and then start the motor, so that the transmission gear on the output end cooperates with the driven gear to drive the hollow tube to rotate. The setting of the air guide strip can make the heating tube rotate accordingly, and the expansion and contraction of the heating tube will not interfere with each other. After the formaldehyde passes through the catalyst sheet, it will react with high-purity oxygen to eventually generate carbon dioxide and water. After the water vapor converges, it will flow along the rotary groove toward the main partition. 5. During the catalytic removal of formaldehyde, the by-product moisture produced will move toward the main partition. The user can periodically control the operation of the second cylinder and the third cylinder, so that under the linkage action of the bracket, the arc sleeve can be controlled to move around the outside of the partition, and the sponge pads on its surface can absorb the produced moisture, and the excess moisture can flow out along its shape.

[0013] Beneficial effects of the present invention: By setting up the first mounting seat and the second mounting seat accessory structure, it can form a heat-expandable rod shape using the main partition and the auxiliary partition after the plywood is transported over, so that the surface of the plywood can be heated while increasing the contact pressure with the board. In conjunction with the catalytic sheet in the rotary groove, the produced formaldehyde can be effectively catalyzed. In conjunction with the support structure, the water produced after the catalysis can be guided and cleaned to reduce the workload of manual cleaning. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] The present invention will be further described below in conjunction with the accompanying drawings.

[0015] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 It is a schematic diagram of the structural connection of the display rack accessories of the present invention; Figure 3 It is a schematic diagram of the connection structure of the steel frame accessories of the present invention; Figure 4 It is a schematic diagram of the connection structure of the first mounting seat, the second mounting seat and the support accessory of the present invention; Figure 5 It is a schematic diagram of the disassembly of the first mounting seat accessory structure of the present invention; Figure 6 It is a schematic diagram of the disassembly of the second mounting seat accessory structure of the present invention; Figure 7 It is a schematic diagram of the disassembly of the auxiliary partition plate accessory structure of the present invention; Figure 8 It is a schematic diagram of the structural connection of the support accessories of the present invention.

[0016] In the figure: 1, placing rack; 2, guiding rack; 3, first motor; 4, toothed disc; 5, sleeve disc; 6, feeding belt; 7, processing rack; 8, conveying rack; 9, placing rack; 10, steel frame; 11, sleeve seat; 12, connecting shaft; 13, pressing arm; 14, thread sleeve; 15, two-way screw rod; 16, sleeve plate; 17, column; 18, positioning plate; 19, ultraviolet lamp; 20, horizontal frame; 21, second motor; 22, first mounting seat; 23, motor; 24, transmission gear; 25, driven gear; 26, air guide tube; 27, middle Empty pipe; 28. Air guide strip; 29. ​​Second mounting seat; 30. Anti-slip groove; 31. Connecting plate; 32. First cylinder; 33. Heating tube; 34. Oblique pin block; 35. Air vent; 36. Main partition; 37. Insert block; 38. Auxiliary partition; 39. Rotary groove; 40. Guide seat; 41. Docking hole; 42. Support; 43. Bottom shell; 44. Connecting ear; 45. Second cylinder; 46. Bracket; 47. Inner shell; 48. Rotating joint; 49. Linkage shell; 50. Arc sleeve; 51. Third cylinder; 52. Sponge pad. DETAILED DESCRIPTION

[0017] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0018] See also Figure 1-Figure 8 As shown, the present invention is a device for removing formaldehyde from plywood, comprising a display rack 1, a steel frame 10 is fixedly connected to the top surface of the display rack 1, a first mounting seat 22 is fixedly connected to the upper end of the display rack 1 located on the inner side of the steel frame 10, a second mounting seat 29 is fixedly installed on the upper end of the display rack 1 located on one side of the first mounting seat 22, and a support 42 is welded and fixed to the surface of the second mounting seat 29; The surface of the second mounting seat 29 is rotatably connected with a connection plate 31, one end of which is fixedly mounted with a first cylinder 32, an output end of the first cylinder 32 is fixedly connected with a heating tube 33, a side surface of the heating tube 33 is fixedly connected with an oblique pin block 34, a surface of the oblique pin block 34 is equidistantly provided with air holes 35, a surface of the oblique pin block 34 is sleeved with a guide seat 40, an inner surface of the guide seat 40 is provided with a docking hole 41, an outer side of the guide seat 40 is fixedly connected with a secondary partition 38, a surface of the secondary partition 38 is provided with a rotary groove 39, a surface of the rotary groove 39 is equidistantly fixedly connected with a catalyst sheet, and an outer side surface of one group of guide seats 40 is fixedly connected with a main partition 36; A guide frame 2 is symmetrically welded and fixed to the top surface of the display rack 1, a first motor 3 is fixedly installed on one side surface of the display rack 1, a toothed disc 4 is fixedly installed on the output end of the first motor 3, a toothed belt is sleeved and connected on the surface of the toothed disc 4, a sleeve disc 5 is rotatably connected to the inner side of the toothed belt, a feeding belt 6 is fixedly connected to the surface of the sleeve disc 5, a processing rack 7 is fixedly connected to one end of the display rack 1, a conveying rack 8 is fixedly connected to the inner side of the processing rack 7, and a placement rack 9 is fixedly connected to one end of the conveying rack 8; The top surface of the steel frame 10 is fixedly installed with a sleeve 11 in the middle, and the surface of the sleeve 11 is movably connected with a connecting shaft 12, wherein the connecting shaft 12 penetrates the sleeve 11 and is slidably arranged with its inner surface, and the bottom surface of the connecting shaft 12 is rotatably connected with a pressing arm 13, and the inner surface of the pressing arm 13 is rotatably connected with a wire sleeve 14 at the edges on both sides, and the surface of the wire sleeve 14 is rotatably connected with a bidirectional screw rod 15, and the inner surface of the steel frame 10 is symmetrically fixedly connected with a sleeve plate 16, and the inner side of the sleeve plate 16 is embedded with a column 17, and the bottom surface of the column 17 is fixedly connected with a positioning plate 18, and the bottom surface of the positioning plate 18 is provided with a groove, and an ultraviolet lamp 19 is fixedly installed on the surface of the groove, wherein a cross frame 20 is welded and fixed on the surface of the two sleeve plates 16, and a second motor 21 is fixedly installed on the surface of the cross frame 20, and the output end of the second motor 21 is fixedly connected to the bidirectional screw rod 15; A motor 23 is fixedly mounted on the surface of the first mounting seat 22, a transmission gear 24 is fixedly mounted on the output end of the motor 23, a driven gear 25 is rotatably connected to the surface of the first mounting seat 22 near the upper end, the transmission gear 24 and the driven gear 25 are meshed and connected, an air guide tube 26 is fixedly connected to the inner side of the driven gear 25, one end of the air guide tube 26 is fixedly connected to a hollow tube 27, and an air guide strip 28 is fixedly connected to the side surface of the hollow tube 27; The surface of the second mounting seat 29 is provided with an anti-slip groove 30, the connecting plate 31 is rotatably connected to the anti-slip groove 30, the surface of the connecting plate 31 is welded and fixed with a slot, the side surface of the main partition 36 is located at one end edge and fixedly connected with an insert block 37, the insert block 37 is embedded and connected with the slot, the interior of the auxiliary partition 38 is provided with a through cavity, the docking hole 41 and the rotating groove 39 are connected with the through cavity; The top surface of the support 42 is fixedly connected to the bottom shell 43, the side surface of the bottom shell 43 is fixedly connected to a connecting ear 44 at one end edge, the surface of the connecting ear 44 is rotatably connected to the second cylinder 45, the output end of the second cylinder 45 is rotatably connected to the bracket 46, the surface of the bracket 46 is fixedly connected to the inner shell 47, the side surface of the inner shell 47 is symmetrically rotatably connected to the rotating joint 48, the surface of the rotating joint 48 is fixedly connected to the linkage shell 49, the surface of the linkage shell 49 is fixedly connected to the arc sleeve 50, the surface of the bracket 46 is rotatably connected to the third cylinder 51 at the bottom end, the arc sleeve 50 is rotatably connected to the third cylinder 51, and the inner surface of the arc sleeve 50 is fixedly connected to a sponge pad 52 at one end edge.

[0019] The present invention is a method for removing formaldehyde from plywood, which specifically comprises the following steps: First, the device is placed in a closed environment, and then the processed plywood is placed in order along the edge of the guide frame 2, and after the first motor 3 drives the gear plate 4 to rotate and the linkage sleeve plate 5 operates, it will eventually drive the feeding belt 6 to send the plywood out from the bottom gap of the guide frame 2, and then stay on the surface of the first mounting seat 22 and the second mounting seat 29; Second, the extension length of the connecting shaft 12 on the surface of the sleeve 11 is limited in advance according to the shape of this batch of plywood, and then the second motor 21 is controlled to operate, and the output end thereof drives the operation of the bidirectional screw 15, and the four corners of the sleeve plate 16 and the column 17 are limited, so that the pressing arm 13 will be deformed and finally drive the positioning plate 18 to press against the surface of the plywood, and then the ultraviolet lamp 19 is turned on, and a certain formaldehyde conversion can be completed through the light; 3. In order to further increase the pressure on the surface of the plywood, the user can start the first cylinder 32. After the output end is recovered, the oblique pin block 34 located on the surface of the heating tube 33 will interfere with the slot on the surface of the guide seat 40, thereby driving the corresponding main partition 36 and the auxiliary partition 38 to expand outward, so that the formaldehyde inside the plywood is further dissipated. After heating with the heating tube 33, under the influence of heat, the formaldehyde will be dissipated faster, and under the influence of the expansion shape of the main partition 36 and the auxiliary partition 38, the gap between adjacent plates will gradually shrink, so as to reduce heat loss and facilitate the temperature increase of the plywood surface. Fourth, after the formaldehyde is released, the user can connect the high-purity oxygen through the air guide tube 26, and then start the motor 23, so that the transmission gear 24 on the output end cooperates with the driven gear 25 to drive the hollow tube 27 to rotate, and the setting of the air guide card strip 28 can make the heating tube 33 rotate accordingly, while the expansion and contraction of the heating tube 33 will not interfere with each other. After the formaldehyde passes through the catalyst sheet, it will react with the high-purity oxygen to eventually generate carbon dioxide and water, and the water vapor will flow along the rotary groove 39 to the main partition 36 after converging; 5. During the catalytic removal of formaldehyde, the byproduct moisture produced will move toward the main partition 36. The user can periodically control the operation of the second cylinder 45 and the third cylinder 51, so that under the linkage action of the bracket 46, the arc sleeve 50 can be controlled to move around the outside of the partition, and the sponge pad 52 on its surface can absorb the produced moisture, and the excess moisture can flow out along its shape.

[0020] The above is a detailed description of an embodiment of the present invention, but the content is only a preferred embodiment of the present invention and cannot be considered to limit the scope of implementation of the present invention. All equivalent changes and improvements made within the scope of the present invention should still fall within the scope of the patent coverage of the present invention.

Claims

1. A device for removing formaldehyde from plywood, comprising a rack (1), characterized in that: The top surface of the display rack (1) is fixedly connected to a steel frame (10); the upper end of the display rack (1) is located on the inner side of the steel frame (10) and is fixedly connected to a first mounting seat (22); the upper end of the display rack (1) is located on one side of the first mounting seat (22) and is fixedly installed with a second mounting seat (29); a support (42) is welded and fixed to the surface of the second mounting seat (29); The surface of the second mounting seat (29) is rotatably connected to a connection plate (31), one end of the connection plate (31) is fixedly mounted with a first cylinder (32), the output end of the first cylinder (32) is fixedly connected to a heating tube (33), the side surface of the heating tube (33) is fixedly connected to an inclined pin block (34), the surface of the inclined pin block (34) is provided with air holes (35) at equal intervals, the surface of the inclined pin block (34) is sleeved and connected to a guide seat (40), the inner surface of the guide seat (40) is provided with a docking hole (41), the outer side of the guide seat (40) is fixedly connected to a secondary partition (38), the surface of the secondary partition (38) is provided with a rotary groove (39), the surface of the rotary groove (39) is fixedly connected to a catalyst sheet at equal intervals, and the outer side surface of one group of the guide seats (40) is fixedly connected to a main partition (36).

2. The device for removing formaldehyde from plywood according to claim 1, characterized in that: A guide frame (2) is symmetrically welded and fixed to the top surface of the placing frame (1); a first motor (3) is fixedly mounted on one side surface of the placing frame (1); a toothed disc (4) is fixedly mounted on the output end of the first motor (3); a toothed belt is sleeved and connected to the surface of the toothed disc (4); a sleeve disc (5) is rotatably connected to the inner side of the toothed belt; a feeding belt (6) is fixedly connected to the surface of the sleeve disc (5); a processing frame (7) is fixedly connected to one end of the placing frame (1); a conveying frame (8) is fixedly connected to the inner side of the processing frame (7); and a placing frame (9) is fixedly connected to one end of the conveying frame (8).

3. The device for removing formaldehyde from plywood according to claim 1, characterized in that: A sleeve (11) is fixedly mounted on the top surface of the steel frame (10) at the middle part, a connecting shaft (12) is movably connected to the surface of the sleeve (11), a pressing arm (13) is rotatably connected to the bottom surface of the connecting shaft (12), a thread sleeve (14) is rotatably connected to the inner surface of the pressing arm (13) at both side edges, a bidirectional screw rod (15) is rotatably connected to the surface of the thread sleeve (14), a sleeve plate (16) is symmetrically fixedly connected to the inner surface of the steel frame (10), and the A column (17) is embedded and connected to the inner side of the sleeve plate (16); a positioning plate (18) is fixedly connected to the bottom surface of the column (17); a groove is provided on the bottom surface of the positioning plate (18); an ultraviolet lamp (19) is fixedly mounted on the surface of the groove; a cross frame (20) is welded and fixed to the surfaces of two sleeve plates (16); a second motor (21) is fixedly mounted on the surface of the cross frame (20); and an output end of the second motor (21) is fixedly connected to the bidirectional screw rod (15).

4. The device for removing formaldehyde from plywood according to claim 1, characterized in that: A motor (23) is fixedly mounted on the surface of the first mounting seat (22), a transmission gear (24) is fixedly mounted on the output end of the motor (23), a driven gear (25) is rotatably connected to the surface of the first mounting seat (22) near the upper end, the transmission gear (24) and the driven gear (25) are meshingly connected, an air guide tube (26) is fixedly connected to the inner side of the driven gear (25), one end of the air guide tube (26) is fixedly connected to a hollow tube (27), and a side surface of the hollow tube (27) is fixedly connected to an air guide strip (28).

5. The device for removing formaldehyde from plywood according to claim 1, characterized in that: The surface of the second mounting seat (29) is provided with an anti-slip groove (30), the connecting plate (31) is rotatably connected to the anti-slip groove (30), the surface of the connecting plate (31) is welded with a slot, the side surface of the main partition (36) is fixedly connected with an insert block (37) at one end edge, the insert block (37) is embedded and connected to the slot, the interior of the auxiliary partition (38) is provided with a through cavity, and the docking hole (41) and the rotary groove (39) are connected to the through cavity.

6. The device for removing formaldehyde from plywood according to claim 1, characterized in that: The top surface of the support (42) is fixedly connected to a bottom shell (43); the side surface of the bottom shell (43) is fixedly connected to a connecting ear (44) at one end edge; the surface of the connecting ear (44) is rotatably connected to a second cylinder (45); the output end of the second cylinder (45) is rotatably connected to a bracket (46); the surface of the bracket (46) is fixedly connected to an inner shell (47); the side surface of the inner shell (47) is symmetrically rotatably connected to a rotating joint (48); the surface of the rotating joint (48) is fixedly connected to a linkage shell (49); the surface of the linkage shell (49) is fixedly connected to an arc sleeve (50); the surface of the bracket (46) is rotatably connected to a third cylinder (51) at the bottom end; the arc sleeve (50) is rotatably connected to the third cylinder (51); the inner side surface of the arc sleeve (50) is fixedly connected to a sponge pad (52) at one end edge.

7. A method for removing formaldehyde from plywood according to any one of claims 1 to 6, characterized in that: The specific steps include: First, the device is placed in a closed environment, and then the processed plywood is placed in order along the edge of the guide frame (2), and after the first motor (3) drives the gear disc (4) to rotate and the linkage sleeve disc (5) operates, it will eventually drive the feeding belt (6) to make the plywood be sent out from the bottom gap of the guide frame (2), and then stay on the surface of the first mounting seat (22) and the second mounting seat (29); Second, the extension length of the connecting shaft (12) on the surface of the sleeve (11) is limited in advance according to the shape of the batch of plywood, and then the second motor (21) is controlled to operate, and the output end of the second motor drives the operation of the bidirectional screw (15), and the four corners of the sleeve plate (16) and the column (17) are coordinated to cause the pressing arm (13) to deform and eventually drive the positioning plate (18) to press against the surface of the plywood, and then turn on the ultraviolet lamp (19), so that a certain formaldehyde conversion can be completed through the light; 3. In order to further increase the pressure on the surface of the plywood, the user can start the first cylinder (32). After the output end of the cylinder (32) is recovered, the oblique pin block (34) located on the surface of the heating tube (33) will interfere with the slot on the surface of the guide seat (40), thereby driving the corresponding main partition (36) and the auxiliary partition (38) to expand outward, so that the formaldehyde inside the plywood is further dissipated. After heating with the heating tube (33), under the influence of heat, the formaldehyde will be dissipated faster, and under the influence of the expansion shape of the main partition (36) and the auxiliary partition (38), the gap between adjacent plates will gradually shrink, so as to reduce heat loss and facilitate the temperature increase of the plywood surface. Fourth, after the formaldehyde is released, the user can connect high-purity oxygen through the air guide tube (26), and then start the motor (23), so that the transmission gear (24) on the output end cooperates with the driven gear (25) to drive the hollow tube (27) to rotate, and the setting of the air guide strip (28) can make the heating tube (33) rotate accordingly, while the expansion and contraction of the heating tube (33) will not interfere with each other. After the formaldehyde passes through the catalyst sheet, it will react with the high-purity oxygen to eventually generate carbon dioxide and water, and the water vapor will flow along the rotation groove (39) to the main partition (36) after converging; 5. During the catalytic removal of formaldehyde, the byproduct water produced will move toward the main partition (36). The user can periodically control the operation of the second cylinder (45) and the third cylinder (51), so that under the linkage action of the bracket (46), the arc sleeve (50) can be controlled to move around the outer side of the partition, and the sponge pad (52) on its surface can absorb the produced water, while the excess water can flow out along its shape.

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