A formaldehyde-free, energy-saving automatic production line for particleboard

Abstract

This invention relates to the field of particleboard processing technology and discloses a formaldehyde-free, energy-saving automatic particleboard production line, including a support frame. A connecting ring is connected to the inner wall of the support frame. Trays are respectively arranged above and below the connecting rings, and the trays are connected to the inner wall of the support frame. Planetary bevel gear sets are connected to the bottom of each tray. The pusher plate reciprocates along the inner wall of the through-slot to facilitate the ejection of particleboard shavings from the bottom of the receiving trough. This allows the shavings to be evenly spread above the conveyor belt. Because the shavings are ejected from the bottom of the receiving trough, the amount ejected each time is consistent, thus layering the shavings to achieve uniform spreading. This avoids uneven particleboard density, which could lead to inconsistent compaction and strength variations in different areas of the board during subsequent compaction.

Description

Technical Field

[0001] This invention relates to the field of particleboard processing technology, specifically to a formaldehyde-free, energy-saving automatic particleboard production line. Background Technology

[0002] Particleboard is a common building and furniture manufacturing material, commonly used in flooring, walls, furniture making, and various other applications. However, the quality of the particleboard directly affects the performance and appearance of the final product. Therefore, quality control is crucial during the particleboard production process.

[0003] Chinese Patent Publication No. CN219445438U discloses an "Automatic Feeding Device for an Environmentally Friendly Particleboard Hot Press Production Line," which includes a main body and a second fixing plate. This invention fixes the second fixing plate to both ends of the inner side of the main body, fixes a second rotary drive component to one side of the second fixing plate, and rotatably mounts a lead screw at the output end of the second rotary drive component, causing the second rotary drive component to drive the lead screw to rotate. A flat plate is mounted at the bottom of a mounting bracket via a mounting groove, and a threaded post is mounted inside the top of the mounting bracket. The bottom end of the threaded post is rotatably mounted inside the mounting groove, allowing the height of the flat plate to be adjusted by rotating the threaded post. A slider is provided on the inner side of the bottom of the mounting bracket and slidably mounted inside a second sliding groove. The mounting bracket is movably mounted outside the lead screw via a threaded sleeve, allowing the lead screw to drive the mounting bracket to move through the threaded sleeve. The mounting bracket moves along the second sliding groove via the slider, thus automatically flattening the raw material inside the mold.

[0004] In this solution, the raw material inside the mold is leveled by adjusting the height of the flat plate. Leveling is achieved by moving the flat plate to push down the excess material inside the mold. However, due to the friction between the raw material fragments, when the flat plate moves and pushes down the excess material, the friction between the materials pulls on each other. This causes the material in the direction the flat plate is moving to be compressed and denser, while the part that the flat plate has already passed is looser due to the friction between the materials during the process of pushing down the material. Although this solution achieves the purpose of leveling, the uneven density of the raw material distribution leads to different strengths in different areas of the board during the subsequent compaction process. Therefore, a formaldehyde-free energy-saving automatic particleboard production line is proposed to solve the above-mentioned problems. Summary of the Invention

[0005] (a) Technical problems to be solved

[0006] To address the shortcomings of existing technologies, this invention provides a formaldehyde-free, energy-saving automated particleboard production line, which solves the problem of uneven raw material distribution during pressing, resulting in varying strengths in different areas of the board.

[0007] (II) Technical Solution

[0008] To achieve the above objectives, the present invention provides the following technical solution: a formaldehyde-free energy-saving automatic particleboard production line, comprising a support frame, a connecting ring connected to the inner wall of the support frame, trays respectively provided above and below the connecting rings, and the trays connected to the inner wall of the support frame, and a planetary bevel gear set connected to the bottom of each tray;

[0009] A shaving mechanism is provided above the support frame for shaving the raw materials.

[0010] The upper set of trays contains a drying mechanism for drying wood shavings.

[0011] The other set of trays below has an adhesive application mechanism inside, which is used to spray MDI adhesive onto wood shavings. The MDI eco-friendly adhesive is used to make them into boards, which not only solves the problem of over-exploitation of forest resources, but also benefits people's home health because it does not contain formaldehyde.

[0012] A material spreading mechanism is provided below the support frame to spread the wood shavings evenly.

[0013] A conveyor belt is placed below the material spreading mechanism. Support plates are connected to the top two sides of the conveyor belt. Hot press rollers are rotatably connected between the support plates. The conveyor belt transports the wood shavings that fall onto it, allowing them to pass under the hot press rollers and be compacted sequentially. This compacts and adheres the wood shavings together to form a particleboard, which is then easily cut and used.

[0014] Preferably, the pallet consists of a cross, an outer ring, an inner ring, a base plate, and a rotating ring. The cross is connected to the inner wall of the support frame, the outer ring is connected to the bottom of the cross, the inner ring is connected to the bottom of the cross inside the outer ring, the base plate is located below the inner ring, and the rotating ring is rotatably connected to the outer wall of the base plate, with the rotating ring positioned between the inner and outer rings. This arrangement allows the base plate and rotating ring inside the pallet to rotate, thus conveying the wood shavings.

[0015] Preferably, the planetary bevel gear set consists of an internal gear ring, a sun gear, and planetary gears. The internal gear ring is connected to the bottom of the outer ring, the sun gear is connected to the bottom of the base plate, and the planetary gears surround the sun gear. Each set of planetary gears is rotatably connected to the bottom of the rotating ring via a rotating shaft, and the planetary gears respectively mesh with the internal gear ring and the sun gear. By setting the planetary bevel gear set, the base plate above will rotate along with the sun gear when it rotates, and drive the meshing planetary gears to rotate. Since the planetary gears rotate with the rotating ring via a rotating shaft, the rotating ring will also rotate.

[0016] Preferably, the wood shaving mechanism includes a slide rail connected to the top of the tray. A mounting plate is connected to the inner wall of the slide rail, and a wood shaving cylinder is rotatably connected to the inner wall of the mounting plate. The wood shaving cylinder extends through the slide rail to the top of the tray. A transmission gear is connected to the bottom of the wood shaving cylinder, and the transmission gears mesh with each other. A first discharge port is provided at the bottom of the inclined surface of the slide rail. A motor is connected to the top of the mounting plate, and a rotating rod is connected to the output end of the motor. The rotating rod sequentially passes through and connects to the wood shaving cylinder, the transmission gear, the tray, and the sun gear. The motor is activated by starting the motor. The rotating rod drives the sun gear and a set of shaving cylinders to rotate. When processing materials, the materials are placed into the slide and slide down the inclined surface of the slide. The rotating shaving cylinders shaving the materials. By setting a transmission gear at the bottom of the shaving cylinder, the meshing transmission gear can drive another set of shaving cylinders to rotate in the opposite direction. When the two sets of shaving cylinders rotate, a clamping space is formed in the middle, which generates a certain amount of extrusion force. This makes it easier for the upper blades of the shaving cylinders to cut the materials and form shavings. The shavings are then discharged through the first discharge port below.

[0017] Preferably, the drying mechanism includes a first guide inclined plate connected between the outer ring and the inner ring. The inner ring, located at the position of the first guide inclined plate, has a second discharge port. Heating plates are installed inside the base plate and the rotating ring. The wood shavings discharged from the first discharge port fall onto the rotating ring and are dried and heated by the internal heating plates. Because the sun gear drives the planetary gear to rotate, it also drives the rotating ring to rotate, so that the wood shavings discharged from the first discharge port are evenly spread on the top of the rotating ring to improve the heating effect. During the rotation of the rotating ring, the wood shavings come into contact with the first guide inclined plate. Guided by the first guide inclined plate, the material is gradually pushed from the second discharge port onto the top of the base plate. When the wood shavings come into contact with the first guide inclined plate, they will tumble and be heated more evenly. Then, they are dried by the heating plates inside the base plate. Because the sun gear drives the base plate to rotate together, the wood shavings are evenly distributed on the top of the base plate to further improve the drying effect.

[0018] Preferably, the drying mechanism further includes a baffle connected to the top of the base plate. The base plate has a third discharge port at the position of the baffle. The sun gear below the third discharge port has a notch. When the wood shavings above the base plate come into contact with the baffle, the wood shavings will be discharged from the third discharge port and fall into the base plate in another set of trays below through the notch.

[0019] Preferably, the adhesive application mechanism includes an atomizing nozzle connected to the bottom of the cross. A second guide plate is connected to the inner wall of the inner ring. A fourth discharge port is connected to the inner ring at the position of the second guide plate. A third guide plate is connected between the inner and outer rings. A fifth discharge port is opened on the outer ring at the position of the third guide plate. MDI adhesive is sprayed onto the wood shavings on the base plate through the atomizing nozzle. Because the sun gear drives the base plate to rotate, the wood shavings are first evenly spread on top of the base plate. Then, the rotation of the base plate causes the wood shavings to... The shavings pass under multiple atomizing nozzles and are sprayed with MDI adhesive multiple times, ensuring that the shavings are in full contact with the MDI adhesive as much as possible. As the base plate continues to rotate, the shavings come into contact with the third guide plate. The third guide plate guides the shavings from the fourth discharge port into the top of the rotating ring. During this process, the third guide plate flips the shavings, ensuring that the shavings are sprayed evenly and comprehensively during the subsequent rotation of the rotating ring. When the shavings above the rotating ring come into contact with the third guide plate, they are guided to be discharged from the fifth discharge port.

[0020] Preferably, the adhesive application mechanism further includes a friction ring, which is connected to the base plate via a connecting rod. A rotating rod is rotatably connected to the outer wall of the inner ring, and a rotating wheel is fitted onto the outer wall of the rotating rod. The rotating wheel is in rolling connection with the friction ring. Stirring rods are connected to both sides of the outer wall of the rotating rod, and the stirring rods are staggered. During the rotation of the rotating ring and the wood shavings, the friction ring connected to the connecting rod will rotate, causing the rotating wheel in contact with the friction ring to rotate. This causes the rotating rod to start rotating, which in turn causes the stirring rod to flip the wood shavings on the top of the rotating ring, so that the sprayed MDI adhesive can fully contact each wood shaving.

[0021] Preferably, the material spreading mechanism includes a receiving platform connected to the pallet below the fifth discharge port. The top of the receiving platform has a receiving groove, and the bottom of the receiving groove has a through groove. A pusher plate is slidably connected to the inner wall of the through groove. Wood shavings discharged from the fifth discharge port fall into the receiving groove. The pusher plate reciprocates along the inner wall of the through groove, pushing the wood shavings from the bottom of the receiving groove out of the through groove. This facilitates even spreading of the wood shavings above the conveyor belt. Because the shavings are pushed out from the bottom of the receiving groove, the amount pushed out each time is consistent, thus layering them to achieve uniform spreading of the wood shavings. This avoids uneven wood shaving density, which could lead to inconsistent compaction and strength in different areas of the board during subsequent compaction.

[0022] Preferably, the material spreading mechanism further includes a turntable connected to the bottom of a rotating rod. The bottom of the turntable has a groove with an annular wavy path. A drive rod is slidably connected to the inner wall of the groove and is connected to the pusher plate. The rotating rod rotates while driving the turntable to rotate. The drive rod is pulled by the groove below the turntable, so that the drive rod is relatively limited by the wavy path of the groove during the rotation of the turntable, so that the pusher plate presents a reciprocating motion.

[0023] (III) Beneficial Effects

[0024] Compared with the prior art, the present invention provides a formaldehyde-free energy-saving automatic particleboard production line, which has the following beneficial effects:

[0025] 1. This formaldehyde-free energy-saving automatic particleboard production line uses a planetary bevel gear set under the tray in conjunction with a drying mechanism to dry the wood shavings. During the drying process, the wood shavings are flattened, turned over, and heated in sections to ensure that they are fully heated and dried, preventing residual moisture from affecting the subsequent board forming quality.

[0026] 2. This formaldehyde-free energy-saving automatic particleboard production line uses a planetary bevel gear set under the tray in conjunction with an adhesive coating mechanism. After the particleboard enters the tray, it is first laid flat, and then MDI adhesive is applied to the surface of the particleboard by spraying it with multiple sets of atomizing nozzles. Then, the particleboard is turned over by a subsequent stirring rod to ensure that it is in full contact with the MDI adhesive.

[0027] 3. This formaldehyde-free, energy-saving automatic particleboard production line uses a pusher plate that reciprocates along the inner wall of the trough to push the wood shavings from the bottom of the receiving trough out of the trough. This facilitates the even distribution of wood shavings above the conveyor belt. Because the shavings are pushed out from the bottom of the receiving trough, the amount pushed out each time is consistent. This layering ensures even distribution of wood shavings and avoids uneven density distribution, which could lead to inconsistent compaction and strength in different areas of the board during subsequent compaction. Attached Figure Description

[0028] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0029] Figure 2 This is a partial cross-sectional view of the present invention;

[0030] Figure 3 This is a schematic diagram of the drying mechanism in this invention;

[0031] Figure 4 This is a schematic diagram of the planetary bevel gear set in this invention;

[0032] Figure 5 This is a schematic diagram of the adhesive application mechanism in this invention;

[0033] Figure 6 In this invention Figure 5 Enlarged view of A;

[0034] Figure 7 This is a partial cross-sectional view of the material spreading mechanism in this invention.

[0035] In the diagram: 1. Support frame; 11. Connecting ring; 12. Tray; 121. Cross; 122. Outer ring; 123. Inner ring; 124. Base plate; 125. Rotary ring; 13. Planetary bevel gear set; 131. Internal gear ring; 132. Sun gear; 133. Planetary gear;

[0036] 2. Wood shaving mechanism; 21. Slide rail; 22. Mounting plate; 23. Wood shaving cylinder; 24. Transmission gear; 25. Motor; 26. Rotating rod; 27. First discharge port;

[0037] 3. Conveyor belt; 31. Support plate; 32. Hot press roller;

[0038] 4. Drying mechanism; 41. First guide inclined plate; 42. Second discharge port; 43. Baffle; 44. Third discharge port; 45. Notch;

[0039] 5. Glue application mechanism; 51. Atomizing nozzle; 52. Second guide ramp; 53. Fourth discharge port; 54. Third guide ramp; 55. Fifth discharge port; 56. Friction ring; 561. Connecting rod; 57. Rotating rod; 58. Rotary wheel; 59. Stirring rod;

[0040] 6. Material spreading mechanism; 61. Material receiving platform; 62. Material receiving trough; 63. Through groove; 64. Material pushing plate; 65. Turntable; 66. Slide groove; 67. Drive rod. Detailed Implementation

[0041] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0042] Example 1

[0043] like Figure 1 , Figure 2 , Figure 3 , Figure 4As shown, an automatic production line for formaldehyde-free and energy-saving particleboard includes a support frame 1. A connecting ring 11 is connected to the inner wall of the support frame 1. Trays 12 are respectively arranged above and below the connecting ring 11, and the trays 12 are connected to the inner wall of the support frame 1. Planetary bevel gear sets 13 are connected to the bottom of each tray 12. A particleboard shaving mechanism 2 is arranged above the support frame 1 for shaving the raw materials. A drying mechanism 4 is installed inside the upper set of trays 12 for drying the particleboard shavings, while an adhesive coating mechanism 5 is installed inside the lower set of trays 12 for spraying MDI adhesive onto the particleboard shavings. Using MDI eco-friendly adhesive, the particleboard is made into boards, which not only solves the problem of over-exploitation of forest resources but also, because it is formaldehyde-free, is beneficial to people's home health. A material spreading mechanism 6 is provided below the support frame 1 to spread wood shavings evenly. A conveyor belt 3 is placed below the material spreading mechanism 6. Support plates 31 are connected to the top two sides of the conveyor belt 3, and hot press rollers 32 are rotatably connected between the support plates 31. By setting up the conveyor belt 3, the wood shavings falling onto the conveyor belt 3 are transported and pass under the hot press rollers 32. The hot press rollers 32 compact the wood shavings one by one, so that the wood shavings are compacted and adhered together to form a wood shaving board. The tray 12 is composed of a cross 121, an outer ring 122, an inner ring 123, a bottom plate 124, and a rotating ring 125. The cross 121 is connected to the inner wall of the support frame 1, the outer ring 122 is connected to the bottom of the cross 121, and the inner ring 123 is connected to the bottom of the cross 121 below the outer ring 125. 2. Internally, the base plate 124 is positioned below the inner ring 123. The rotating ring 125 is rotatably connected to the outer wall of the base plate 124, and is positioned between the inner ring 123 and the outer ring 122. This arrangement allows the base plate 124 and the rotating ring 125 within the tray 12 to rotate, thus conveying the wood shavings. The planetary bevel gear set 13 consists of an internal gear ring 131, a sun gear 132, and planetary gears 133. The internal gear ring 131 is connected to the bottom of the outer ring 122, the sun gear 132 is connected to the bottom of the base plate 124, and the planetary gears 133 surround the outside of the sun gear 132. Each set of planetary gears 133 is rotatably connected to the bottom of the rotating ring 125 via a rotating shaft, and the planetary gears 133 are respectively connected to the internal gear ring 131 and the sun gear 132. Gear 132 meshes with tray 12. By setting up a planetary bevel gear set 13, when the sun gear 132 rotates, the upper base plate 124 will rotate along with it, driving the meshing planetary gear 133 to rotate. Since the planetary gear 133 rotates through a rotating shaft and a rotating ring 125, the rotating ring 125 will also rotate. The wood shaving mechanism 2 includes a slide 21, which is connected to the top of the tray 12. A mounting plate 22 is connected to the inner wall of the slide 21. A wood shaving cylinder 23 is rotatably connected to the inner wall of the mounting plate 22. The wood shaving cylinder 23 extends through the slide 21 to the top of the tray 12. A transmission gear 24 is connected to the bottom of the wood shaving cylinder 23, and the transmission gears 24 mesh with each other. A first discharge port 27 is opened at the bottom of the inclined surface of the slide 21.A motor 25 is connected to the top of the mounting plate 22. A rotating rod 26 is connected to the output end of the motor 25. The rotating rod 26 passes through and connects to the shaving cylinder 23, the transmission gear 24, the tray 12, and the sun gear 132. Starting the motor 25 drives the rotating rod 26 to rotate, which in turn drives the sun gear 132 and a set of shaving cylinders 23 to rotate. When processing materials, the materials are placed in the slide 21 and slide down its inclined surface. The rotating shaving cylinders 23 shaving the materials. The transmission gear 24, located at the bottom of the shaving cylinder 23, allows the meshing gear to drive another set of shaving cylinders 23 to rotate in the opposite direction. This creates a clamping space between the two sets of shaving cylinders 23, generating a certain amount of pressure. This makes it easier for the upper blades of the shaving cylinder 23 to cut the material into shavings. The shavings are then discharged through the first discharge port 27 below.

[0044] In this embodiment, the starting motor 25 drives the rotating rod 26 to rotate, and the rotating rod 26 drives the sun gear 132 and a set of shaving cylinders 23 to rotate. When processing materials, the materials are placed into the slide 21 and slide down the inclined surface of the slide 21. The rotating shaving cylinders 23 shaving the materials. By setting the transmission gear 24 at the bottom of the shaving cylinders 23, the meshing transmission gear 24 can drive another set of shaving cylinders 23 to rotate in the opposite direction. When the two sets of shaving cylinders 23 rotate, a clamping space is formed in the middle, which generates a certain amount of extrusion force. This makes it easier for the upper blades of the shaving cylinders 23 to cut the materials and form shavings. The shavings are then discharged through the first discharge port 27 below.

[0045] Example 2

[0046] like Figure 4 , Figure 5As shown, the drying mechanism 4 includes a first guide inclined plate 41, which is connected between the outer ring 122 and the inner ring 123. The inner ring 123, located at the position of the first guide inclined plate 41, has a second discharge port 42. Heating plates are installed inside the bottom plate 124 and the rotating ring 125. The wood shavings discharged from the first discharge port 27 fall onto the rotating ring 125 and are dried and heated by the internal heating plates. Since the sun gear 132 drives the planetary gear 133 to rotate, it also drives the rotating ring 125 to rotate, so that the wood shavings discharged from the first discharge port 27 are evenly spread on the top of the rotating ring 125 to improve its heating effect. During the rotation of the rotating ring 125, the wood shavings will contact the first guide inclined plate 41. Guided by the first guide inclined plate 41, the material will gradually flow from the first guide inclined plate 41 to the inner ring 123. The second discharge port 42 is pushed above the base plate 124. When the shavings come into contact with the first guide inclined plate 41, they will tumble and be heated more evenly. Then, they are dried by the heating plate inside the base plate 124. Since the sun gear 132 drives the base plate 124 to rotate together, the shavings are evenly distributed on the top of the base plate 124 to further improve the drying effect. The drying mechanism 4 also includes a baffle 43 connected to the top of the base plate 124. The base plate 124 has a third discharge port 44 at the position of the baffle 43. The sun gear 132 below the third discharge port 44 has a notch 45. When the shavings above the base plate 124 come into contact with the baffle 43, the shavings will be discharged from the third discharge port 44 and fall into the base plate 124 in another set of trays 12 below.

[0047] In this embodiment, the wood shavings discharged from the first discharge port 27 fall onto the top of the rotating ring 125 and are dried and heated by the internal heating plate. Since the sun gear 132 drives the planetary gear 133 to rotate, it also drives the rotating ring 125 to rotate, ensuring that the wood shavings discharged from the first discharge port 27 are evenly distributed on the top of the rotating ring 125, thus improving the heating effect. During the rotation of the rotating ring 125, the wood shavings come into contact with the first guide plate 41. Guided by the first guide plate 41, the material gradually flows from the second discharge port 42. Pushed above the base plate 124, the wood shavings tumble upon contact with the first guide ramp 41, causing them to heat more evenly. They are then dried by the heating plate inside the base plate 124. Furthermore, the sun gear 132 drives the base plate 124 to rotate, ensuring that the wood shavings are evenly distributed on the top of the base plate 124, further enhancing the drying effect. When the wood shavings above the base plate 124 contact the baffle 43, they are discharged from the third discharge port 44 and fall through the notch 45 onto the base plate 124 in another set of trays below.

[0048] Example 3

[0049] like Figure 5 , Figure 6 , Figure 7As shown, the adhesive application mechanism 5 includes an atomizing nozzle 51 connected to the bottom of the cross 121. A second guide ramp 52 is connected to the inner wall of the inner ring 123. A fourth discharge port 53 is connected to the inner ring 123 at the position of the second guide ramp 52. A third guide ramp 54 is connected between the inner ring 123 and the outer ring 122. A fifth discharge port 55 is opened on the outer ring 122 at the position of the third guide ramp 54. MDI adhesive is sprayed onto the wood shavings on the base plate 124 through the atomizing nozzle 51. Because the sun gear 132 drives the base plate 124 to rotate, the wood shavings are first evenly spread above the base plate 124. Then, the rotation of the base plate 124 causes the wood shavings to pass under multiple sets of atomizing nozzles 51. After multiple sprays of MDI adhesive, the wood shavings are coated with the adhesive. The wood shavings are made to contact the MDI adhesive as fully as possible. During the continuous rotation of the base plate 124, the wood shavings come into contact with the third guide plate 54. Guided by the third guide plate 54, the wood shavings enter the area above the rotating ring 125 from the fourth discharge port 53. During this process, the third guide plate 54 flips the wood shavings, ensuring even and comprehensive spraying during subsequent rotation of the rotating ring 125. When the wood shavings above the rotating ring 125 contact the third guide plate 54, they are guided to exit from the fifth discharge port 55. The adhesive application mechanism 5 also includes a friction ring 56, which is connected to the base plate 124 via a connecting rod 561. A rotating rod 57 is rotatably connected to the outer wall of the inner ring 123, and a rotating wheel is fitted onto the outer wall of the rotating rod 57. 58, and the rotating wheel 58 is rollingly connected to the friction ring 56. Stirring rods 59 are connected to both sides of the outer wall of the rotating rod 57, and the stirring rods 59 are staggered. During the rotation of the rotating ring 125 driving the wood shavings, the friction ring 56 connected to the connecting rod 561 will rotate, causing the rotating wheel 58 in contact with the friction ring 56 to rotate. This causes the rotating rod 57 to start rotating, and the stirring rods 59 will flip the wood shavings on the top of the rotating ring 125, ensuring that the sprayed MDI adhesive can fully contact each wood shaving. The material spreading mechanism 6 includes a receiving platform 61, which is connected to the tray 12 below the fifth discharge port 55. A receiving groove 62 is opened on the top of the receiving platform 61, and a through groove 63 is opened at the bottom of the receiving groove 62. A pusher plate 64 is slidably connected to the inner wall of conveyor belt 3. Wood shavings discharged from the fifth discharge port 55 fall into the receiving trough 62. The pusher plate 64 reciprocates along the inner wall of the through trough 63, facilitating the ejection of wood shavings from the bottom of the receiving trough 62. This ensures the wood shavings are evenly distributed above conveyor belt 3. Because the shavings are ejected from the bottom of the receiving trough 62, the amount ejected each time is consistent, layering the shavings to achieve uniform distribution. This prevents uneven density of the shavings, which could lead to inconsistent compaction and strength variations in different areas of the board during subsequent compaction. The material spreading mechanism 6 also includes a turntable 65 connected to the bottom of the rotating rod 26. A groove 66 is provided at the bottom of the turntable 65.The chute 66 has a ring-shaped wavy path. A drive rod 67 is slidably connected to the inner wall of the chute 66, and the drive rod 67 is connected to the pusher plate 64. As the rotating rod 26 rotates, it drives the turntable 65 to rotate. The chute 66 below the turntable 65 pulls the drive rod 67, so that during the rotation of the turntable 65, the wavy path of the chute 66 relatively limits the movement of the drive rod 67, causing the pusher plate 64 to reciprocate.

[0050] In this embodiment, MDI adhesive is sprayed onto the wood shavings on the base plate 124 using atomizing nozzles 51. As the sun gear 132 drives the base plate 124 to rotate, the wood shavings are initially evenly spread above the base plate 124. Then, the rotation of the base plate 124 causes the wood shavings to pass under multiple sets of atomizing nozzles 51, resulting in multiple sprays of MDI adhesive. This ensures the wood shavings are in full contact with the MDI adhesive. During the continuous rotation of the base plate 124, the wood shavings come into contact with the third guide plate 54. Guided by the third guide plate 54, the wood shavings enter the area above the rotating ring 125 from the fourth discharge port 53. During this process, the third guide plate 54 flips the wood shavings, ensuring comprehensive and even spraying during subsequent rotation of the rotating ring 125. When the wood shavings above the rotating ring 125 contact the third guide plate 54, they are guided to exit from the fifth discharge port 55. As the rotating ring 125 drives the wood shavings to rotate... The friction ring 56 connected to the connecting rod 561 rotates, causing the rotating wheel 58 in contact with the friction ring 56 to rotate. This causes the rotating rod 57 to rotate, which in turn causes the stirring rod 59 to flip the shavings on the top of the rotating ring 125, allowing the sprayed MDI adhesive to fully contact each shaving. The rotation of the rotating rod 26 simultaneously drives the turntable 65 to rotate. The drive rod 67 is pulled by the slide groove 66 below the turntable 65. During the rotation of the turntable 65, the drive rod 67 is relatively limited by the wavy path of the slide groove 66, causing the pusher plate 64 to reciprocate. The reciprocating motion of the pusher plate 64 on the inner wall of the through groove 63 facilitates the pushing of shavings from the bottom of the receiving groove 62 out of the through groove 63, so that the shavings are evenly spread above the conveyor belt 3. Since they are pushed out from the bottom of the receiving groove 62, the amount pushed out each time is consistent, thus layering them to achieve the purpose of evenly spreading the shavings.

[0051] Working principle

[0052] In summary, when this formaldehyde-free energy-saving automatic particleboard production line is in use, the starter motor 25 drives the rotating rod 26 to rotate, which in turn drives the sun gear 132 and a set of particleboard cylinders 23 to rotate. When processing materials, the materials are placed into the slide 21 and slide down its inclined surface. The rotating particleboard cylinders 23 shaving the materials. Furthermore, by setting a transmission gear 24 at the bottom of the particleboard cylinders 23, the meshing transmission gear 24 can drive another set of particleboard cylinders 23 to rotate in the opposite direction. This creates a clamping space between the two sets of particleboard cylinders 23, generating a certain amount of pressure. This makes it easier for the upper blades of the particleboard cylinders 23 to cut the material into shavings. The shavings are then discharged through the first discharge port 27 below. The wood shavings discharged from the discharge port 27 fall onto the top of the rotating ring 125 and are dried and heated by the internal heating plate. Because the sun gear 132 drives the planetary gear 133 to rotate, it also drives the rotating ring 125 to rotate, ensuring that the wood shavings discharged from the first discharge port 27 are evenly distributed on the top of the rotating ring 125, thus improving the heating effect. During the rotation of the rotating ring 125, the wood shavings come into contact with the first guide plate 41. Guided by the first guide plate 41, the material is gradually pushed from the second discharge port 42 onto the top of the bottom plate 124. When the wood shavings come into contact with the first guide plate 41, they tumble, resulting in more even heating. They are then dried by the heating plate inside the bottom plate 124. Furthermore, because the sun gear 132 drives the bottom plate 125 to rotate, the wood shavings are evenly distributed on the top of the rotating ring 125. The 24 rotate together, causing the wood shavings to be evenly distributed on the top of the base plate 124, further enhancing its drying effect. When the wood shavings on the base plate 124 come into contact with the baffle 43, the wood shavings will be discharged from the third discharge port 44 and fall through the notch 45 onto the base plate 124 in another set of trays below. MDI adhesive is sprayed onto the wood shavings on the base plate 124 through the atomizing nozzle 51. As the sun gear 132 drives the base plate 124 to rotate, the wood shavings will first be evenly distributed on the top of the base plate 124. Then, the rotation of the base plate 124 will cause the wood shavings to pass under the multiple sets of atomizing nozzles 51. After multiple sprays of MDI adhesive, the wood shavings will be in full contact with the MDI adhesive as much as possible. During the continuous rotation of the base plate 124, the wood shavings will come into contact with the third guide plate. At point 54, the shavings are guided by the third guide plate 54 to enter the area above the rotating ring 125 from the fourth discharge port 53. During this process, the third guide plate 54 flips the shavings, ensuring that the shavings are sprayed evenly and comprehensively during the subsequent rotation of the rotating ring 125. When the shavings above the rotating ring 125 come into contact with the third guide plate 54, they are guided to exit from the fifth discharge port 55. As the rotating ring 125 rotates, it also drives the friction ring 56 connected to the connecting rod 561 to rotate. This causes the rotating wheel 58, which is in contact with the friction ring 56, to rotate, causing the rotating rod 57 to start rotating. This causes the mixing rod 59 to flip the shavings on top of the rotating ring 125, ensuring that the sprayed MDI adhesive makes full contact with each shaving.The rotation of the rotating rod 26 drives the turntable 65 to rotate simultaneously. The drive rod 67 is pulled by the sliding groove 66 below the turntable 65, causing the drive rod 67 to be relatively limited by the wavy path of the sliding groove 66 during the rotation of the turntable 65. This causes the pusher plate 64 to reciprocate. The reciprocating motion of the pusher plate 64 within the through groove 63 facilitates the ejection of wood shavings from the bottom of the receiving trough 62, ensuring the shavings are evenly spread above the conveyor belt 3. Because the shavings are ejected from the bottom of the receiving trough 62, the amount ejected each time is consistent, thus layering the shavings for uniform distribution. The conveyor belt 3 transports the shavings onto it, allowing them to pass under the hot pressure rollers 32, where they are compacted and adhered together to form particleboard.

[0053] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

Claims

1. A formaldehyde-free, energy-saving automatic particleboard production line, comprising a support frame, characterized in that: The inner wall of the support frame is connected to a connecting ring, and a tray is provided above and below the connecting ring, and the tray is connected to the inner wall of the support frame. A planetary bevel gear set is connected to the bottom of each tray. A shaving mechanism is provided above the support frame for processing raw materials into shavings; The upper set of trays contains a drying mechanism for drying wood shavings. The other set of trays below has an adhesive applicator inside, used to spray MDI adhesive onto the wood shavings; A material spreading mechanism is provided below the support frame to spread the wood shavings evenly. A conveyor belt is placed below the material spreading mechanism. Support plates are connected to the top two sides of the conveyor belt. A hot press roller is rotatably connected between the support plates. The tray consists of a cross, an outer ring, an inner ring, a base plate, and a rotating ring. The cross is connected to the inner wall of the support frame. The outer ring is connected to the bottom of the cross. The inner ring is connected to the bottom of the cross inside the outer ring. The base plate is located below the inner ring. The rotating ring is rotatably connected to the outer wall of the base plate and is located between the inner and outer rings. The planetary bevel gear set consists of an internal gear ring, a sun gear, and planetary gears. The internal gear ring is connected to the bottom of the outer ring. The sun gear is connected to the bottom of the base plate. The planetary gears surround the sun gear. Each set of planetary gears is rotatably connected to the bottom of the rotating ring through a rotating shaft, and the planetary gears mesh with the internal gear ring and the sun gear respectively. The adhesive application mechanism includes an atomizing nozzle connected to the bottom of the cross. The inner wall of the inner ring is connected to a second guide plate. The inner ring is connected to a fourth discharge port at the position of the second guide plate. A third guide plate is connected between the inner ring and the outer ring. The outer ring is opened to a fifth discharge port at the position of the third guide plate. The adhesive application mechanism also includes a friction ring, which is connected to the base plate via a connecting rod. A rotating rod is rotatably connected to the outer wall of the inner ring. A rotating wheel is fitted on the outer wall of the rotating rod, and the rotating wheel is in rolling connection with the friction ring. Stirring rods are connected to both sides of the outer wall of the rotating rod, and the stirring rods are staggered.

2. The formaldehyde-free energy-saving automatic particleboard production line according to claim 1, characterized in that: The wood shaving mechanism includes a slide rail connected to the top of the tray. A mounting plate is connected to the inner wall of the slide rail, and a wood shaving cylinder is rotatably connected to the inner wall of the mounting plate. The wood shaving cylinder extends through the slide rail to the top of the tray. A transmission gear is connected to the bottom of the wood shaving cylinder, and the transmission gears mesh with each other. A first discharge port is opened at the bottom of the inclined surface of the slide rail. A motor is connected to the top of the mounting plate, and a rotating rod is connected to the output end of the motor. The rotating rod passes through the wood shaving cylinder, the transmission gear, the tray, and the sun gear in sequence and is connected to them.

3. The formaldehyde-free energy-saving automatic particleboard production line according to claim 2, characterized in that: The drying mechanism includes a first guide inclined plate, which is connected between the outer ring and the inner ring. The inner ring is provided with a second discharge port at the position of the first guide inclined plate. A heating plate is provided inside the bottom plate and the rotating ring.

4. The formaldehyde-free energy-saving automatic particleboard production line according to claim 3, characterized in that: The drying mechanism also includes a baffle connected to the top of the base plate. The base plate has a third discharge port at the position of the baffle, and a notch is provided on the sun gear below the third discharge port.

5. The formaldehyde-free energy-saving automatic particleboard production line according to claim 1, characterized in that: The material feeding mechanism includes a receiving platform, which is connected to the pallet below the fifth discharge port. The top of the receiving platform has a receiving groove, and the bottom of the receiving platform has a through groove. The inner wall of the through groove is slidably connected to a pusher plate.

6. The formaldehyde-free energy-saving automatic particleboard production line according to claim 5, characterized in that: The material spreading mechanism also includes a turntable connected to the bottom of a rotating rod. The bottom of the turntable has a groove with an annular wavy path. A drive rod is slidably connected to the inner wall of the groove and is connected to a pusher plate.

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