Artificial board environment-friendly glue spraying device capable of achieving uniform spraying

Abstract

The invention provides an artificial board environment-friendly glue spraying device capable of achieving uniform spraying, and relates to the technical field of artificial board machining. Two top plates are installed at the upper end of the first support through bolts, four conveying rollers are installed between the two top plates through bearings, riding wheels are installed on the conveying rollers through bolts, and chain wheels are fixed to the conveying rollers. Through cooperation of the multiple sets of conveying rollers, the riding wheels, the rotating rods and other structures, plates are stably conveyed, and deviation and shaking are prevented; the cleaning brush and the blowing nozzle are used for doubly cleaning the plate surface, and the environment-friendly adhesive adhesion effect is improved; the movable arm and the adjusting bolt adjust the tension degree of the chain, and the lead screw and the hand wheel are matched with different plate thicknesses; according to the spraying device, the defects of a traditional spraying device in the aspects of conveying stability, surface cleaning, transmission adjustment, spraying uniformity and the like are effectively overcome, and the artificial board gluing quality and the product quality are remarkably improved.

Description

Technical Field

[0001] This invention relates to the field of engineered wood processing technology, and in particular to an environmentally friendly adhesive spraying device for engineered wood that can uniformly spray adhesive. Background Technology

[0002] In the engineered wood products manufacturing industry, the quality of environmentally friendly adhesive spraying plays a crucial role in the performance and environmental indicators of engineered wood products. With the market's increasing demands for engineered wood product quality and increasingly stringent environmental standards, achieving uniform spraying of environmentally friendly adhesives has become a key focus of the industry. Therefore, the design of an environmentally friendly adhesive spraying device for engineered wood products capable of uniform spraying is necessary.

[0003] In the board conveying process, the existing spraying equipment cannot stably convey the boards, which easily leads to board deviation and shaking, resulting in inaccurate spraying position, affecting the spraying effect and production continuity. The lack of a board surface pretreatment structure seriously affects the adhesion between the environmentally friendly adhesive and the board, reducing the bonding effect of the artificial board and the product quality. Summary of the Invention

[0004] This invention relates to an environmentally friendly adhesive spraying device for engineered wood panels capable of uniform spraying, in order to solve the technical problems mentioned in the background art.

[0005] In a first aspect, the present invention provides an environmentally friendly adhesive spraying device for engineered wood panels capable of uniform spraying, specifically comprising: a first support; two parallel top plates are bolted to the upper end of the first support, and multiple conveying rollers are mounted between the two top plates via bearings, with multiple support rollers spaced apart on the conveying rollers, and sprockets at the ends of the conveying rollers; a base plate is bolted to the first support, and a sliding groove is provided on the first support; a first gearbox and a first motor are mounted on the base plate; a sprocket is mounted on the output shaft of the first gearbox; a chain is wound between the sprocket of the conveying rollers and the sprocket of the output shaft of the first gearbox; a base frame is fixed to the first support, and a first movable plate and a second movable plate slide on the base frame; rotatable rotating rods are mounted on both the first and second movable plates; a rotatable rotating plate is mounted on the base frame, and connecting rods connect the rotating plate to the first and second movable plates; a hydraulic rod is fixedly mounted on the base frame, and the piston rod of the hydraulic rod is connected to the second movable plate; the rotating rod is located between two adjacent sets of conveying rollers.

[0006] In at least some embodiments, a second bracket is installed on the right side of the first bracket, a base plate is bolted to the upper end of the second bracket, a front side plate and a rear side plate are bolted to the front and rear ends of the base plate, a first cover plate is bolted between the front side plate and the rear side plate, a second cover plate is hinged to the first cover plate, and a cleaning brush is bolted to both the first cover plate and the second cover plate.

[0007] In at least some embodiments, a frame is bolted to both the front and rear side plates, and movable blocks are movably mounted within the frame. A top roller is mounted between two movable blocks via a bearing. A bottom roller is supported between the front and rear side plates. Sprockets are mounted on both the bottom and top rollers. A fixed column is fixed to the front side plate, and a sprocket is mounted on the fixed column. The sprockets on the bottom roller, the top roller, and the fixed column are connected by a chain for transmission. A second gearbox is bolted to the front side plate, and the output shaft of the second gearbox is connected to the bottom roller. A second motor is bolted to the second gearbox.

[0008] In at least some embodiments, a mounting cylinder is bolted to the front side plate, a movable arm is movably mounted inside the mounting cylinder, a sprocket is mounted on the movable arm, a threaded hole is provided on the movable arm, the sprocket on the movable arm is pressed against the chain between the fixed column and the top roller, an end cap is bolted to the mounting cylinder, an adjusting bolt is mounted on the end cap by a locking spring, the adjusting bolt is threaded into the threaded hole on the movable arm, a lead screw is mounted on the frame, the lower end of the lead screw is connected to the movable block by a locking spring, and a handwheel is mounted on the upper end of the lead screw.

[0009] In at least some embodiments, a fixing rod is installed between the front side plate and the rear side plate, and a plurality of locking seats are provided at intervals on the fixing rod, with bottom wheels installed on the locking seats.

[0010] In at least some embodiments, two round rods are fixed between the front and rear side plates. Multiple mounting seats are bolted onto each of the two round rods, and air nozzles are mounted on the mounting seats. Two diversion valves are bolted onto the rear side plate. The diversion valves are connected to the air nozzles via hoses. A partition is bolted onto the second bracket, and a connecting seat is bolted onto the partition. The air outlet of the connecting seat is connected to the two diversion valves via hoses, and the air inlet of the connecting seat is connected to an external air supply device.

[0011] In at least some embodiments, a third bracket is welded to the right side of the second bracket, and two support plates are fixedly installed on the third bracket. Two fixed cylinders are fixed on the support plates, and a support screw is screwed into the internal thread of the fixed cylinder. The upper end of the support screw is provided with a threaded hole, and a support plate is installed on the upper end of the support screw by bolts.

[0012] In at least some embodiments, a welding seat is fixed on the third support, and two connecting rollers are mounted on the welding seat.

[0013] In at least some embodiments, a support frame is fixed on the pallet, a sliding plate is movably mounted on the support frame, a third motor is mounted on the support frame by bolts, a rotating column is mounted on the support frame by bearings, pulleys are mounted on both the rotating column and the output shaft of the third motor, the output shaft of the third motor is connected to the rotating column by a belt for transmission, two mating wheels are mounted on the support frame, a transmission belt is connected between the mating wheels and the rotating column, and the sliding plate is fixedly connected to the transmission belt.

[0014] In at least some embodiments, a sliding plate is bolted to the sliding plate, a sliding groove is formed on the sliding plate, a plurality of top blocks are installed in the sliding groove, a bottom block is bolted to the lower end of the top block, a nozzle is installed at the lower end of the bottom block, the upper end of the nozzle is connected to the bottom block, and the bottom block is connected to an external environmentally friendly adhesive supply device through a hose.

[0015] This invention provides an environmentally friendly adhesive spraying device for engineered wood panels capable of uniform spraying, which has the following beneficial effects: In this invention, multiple sets of conveying rollers and support rollers work together to smoothly transport the artificial board, and structures such as rotating rods, rotating plates, and hydraulic rods can provide auxiliary support and limit the board, preventing the board from shifting or shaking during the conveying process and ensuring a stable and orderly spraying process.

[0016] In addition, in this invention, the cleaning brushes on the first and second cover plates can clean the surface of the board, removing dust and impurities, and the air nozzle uses the airflow provided by the external air supply equipment to further clean the surface of the board, ensuring that the surface of the board is clean, which helps the environmentally friendly adhesive to adhere better and improve the bonding effect.

[0017] Furthermore, in this invention, the movable arm and adjusting bolt work together to adjust the chain tension, ensuring stable operation of the transmission system. The lead screw and handwheel can adjust the height of the top roller, making it easy to adapt to the conveying of plates of different thicknesses. At the same time, the transmission pressure can be adjusted according to actual needs to ensure smooth conveying of plates.

[0018] Furthermore, in this invention, multiple nozzles are moved by a sliding plate, and the position of the nozzles is adjustable, so as to achieve full spraying of environmentally friendly adhesive on the surface of the engineered wood panel, effectively avoiding blind spots in spraying, ensuring uniform spraying, and improving the bonding quality and product quality of the engineered wood panel. Attached Figure Description

[0019] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings of the embodiments will be briefly described below.

[0020] The accompanying drawings described below are only related to some embodiments of the invention and are not intended to limit the invention.

[0021] In the attached diagram: Figure 1 A schematic diagram of the overall structure of the present invention is shown.

[0022] Figure 2 A schematic diagram of the structure of the first support portion of the present invention is shown.

[0023] Figure 3 A schematic diagram of the base frame portion of the present invention is shown.

[0024] Figure 4 A schematic diagram of the structure of the second support portion of the present invention is shown.

[0025] Figure 5 A schematic diagram of the fixing rod portion of the present invention is shown.

[0026] Figure 6 The present invention is shown Figure 5 A magnified structural diagram of part A in the middle.

[0027] Figure 7 A schematic diagram of the mounting cylinder portion of the present invention is shown.

[0028] Figure 8 A schematic diagram of the circular rod portion of the present invention is shown.

[0029] Figure 9 A schematic diagram of the support plate portion of the present invention is shown.

[0030] Figure 10 A schematic diagram of the support frame portion of the present invention is shown.

[0031] Figure 11 A schematic diagram of the slide plate portion of the present invention is shown.

[0032] List of reference numerals 1. First support; 11. Top plate; 12. Conveyor roller; 121. Support roller; 13. Seat plate; 131. First gearbox; 132. First motor; 14. Base frame; 141. First movable plate; 142. Second movable plate; 1421. Rotating rod; 143. Rotating plate; 1431. Connecting rod; 144. Hydraulic rod; 2. Second support; 21. Base plate; 22. Rear side plate; 23. Front side plate; 231. Frame; 232. Movable block; 2321. Top roller; 233. Lead screw; 234. Handwheel; 235. Fixed column; 236. Mounting cylinder; 2361. End cover; 2362. Movable arm; 2363. Adjusting bolt; 237. Second gearbox; 237 1. Second motor; 24. First cover plate; 25. Second cover plate; 251. Cleaning brush; 26. Fixing rod; 261. Locking seat; 262. Bottom wheel; 27. Bottom roller; 28. Round rod; 281. Mounting seat; 282. Air nozzle; 283. Partition plate; 2831. Connecting seat; 284. Diverter valve; 3. Third bracket; 31. Support plate; 311. Fixing cylinder; 312. Support screw; 32. Support plate; 33. Welding seat; 331. Connecting roller; 34. Support frame; 341. Third motor; 342. Rotating column; 343. Matching wheel; 344. Transmission belt; 35. Sliding plate; 351. Slide plate; 352. Top block; 353. Bottom block; 354. Nozzle. Detailed Implementation

[0033] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, 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, not all, of the embodiments of the present invention. Based on the described 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.

[0034] Please refer to Figures 1 to 11 Example 1: This invention proposes an environmentally friendly adhesive spraying device for engineered wood panels capable of uniform spraying, comprising: a first support 1; two parallel top plates 11 are bolted to the upper end of the first support 1, and four conveying rollers 12 are mounted between the two top plates 11 via bearings. Support rollers 121 are bolted to the conveying rollers 12 at intervals, and sprockets are fixed to the ends of the conveying rollers 12. A base plate 13 is bolted to the first support 1, and a sliding groove is formed on the first support 1. A first gearbox 131 and a first motor 132 are bolted to the base plate 13, and the first gearbox 131 and the first motor 132 are connected in a transmission relationship. A sprocket is mounted on the output shaft of the first gearbox 131. A chain is wound between the sprocket of the conveyor roller 12 and the sprocket of the output shaft of the first gearbox 131. A base frame 14 is fixed on the first bracket 1. A first movable plate 141 and a second movable plate 142 slide on the base frame 14. A rotatable rotating rod 1421 is installed on both the first movable plate 141 and the second movable plate 142. A rotatable rotating plate 143 is installed on the base frame 14. A connecting rod 1431 connects the rotating plate 143 to the first movable plate 141 and the second movable plate 142. A hydraulic rod 144 is fixedly installed on the base frame 14. The piston rod of the hydraulic rod 144 is connected to the second movable plate 142. The rotating rod 1421 is located between two adjacent sets of conveyor rollers 12.

[0035] In this invention, a second bracket 2 is installed on the right side of the first bracket 1. A base plate 21 is bolted to the upper end of the second bracket 2. A front side plate 23 and a rear side plate 22 are bolted to the front and rear ends of the base plate 21, respectively. A first cover plate 24 is bolted between the front side plate 23 and the rear side plate 22. A second cover plate 25 is hinged to the first cover plate 24. A cleaning brush 251 is bolted to both the first cover plate 24 and the second cover plate 25. The function of the cleaning brush 251 mounted on the first cover plate 24 and the second cover plate 25 is to... The cleaning brush 251 can clean the surface of the artificial board as it passes by, removing dust, debris and other impurities attached to the surface of the artificial board, ensuring the surface of the artificial board is clean, providing good surface conditions for subsequent environmentally friendly adhesive spraying, improving the bonding effect and bonding quality between the environmentally friendly adhesive and the board. The first cover plate 24 and the second cover plate 25 are connected by hinges, which can be opened and closed flexibly, making it easy to inspect, replace and maintain the cleaning brush 251, ensuring that the cleaning brush 251 is always in good working condition, and also making it easy to adjust the position of the air nozzle 282.

[0036] In this invention, frames 231 are bolted to both the front side plate 23 and the rear side plate 22. Movable blocks 232 are movably mounted within the frames 231. A top roller 2321 is mounted between the two movable blocks 232 via bearings. A bottom roller 27 is supported between the front side plate 23 and the rear side plate 22. Sprockets are mounted on both the bottom roller 27 and the top roller 2321. A fixing post 235 is fixed to the front side plate 23, and a sprocket is mounted on the fixing post 235. The sprockets on the bottom roller 27, the top roller 2321, and the fixing post 235 are connected by chains for transmission. A second gearbox 237 is bolted to the front side plate 23. The output shaft of 37 is connected to the bottom roller 27. A second motor 2371 is bolted to the second gearbox 237. An mounting cylinder 236 is bolted to the front side plate 23. A movable arm 2362 moves within the mounting cylinder 236. A sprocket is mounted on the movable arm 2362. The movable arm 2362 has a threaded hole. The sprocket is pressed against the chain between the fixed column 235 and the top roller 2321. An end cover 2361 is bolted to the mounting cylinder 236. An adjusting bolt 2363 is mounted on the end cover 2361 via a locking spring. The adjusting bolt 2363 is threaded into the threaded hole on the movable arm 2362. A lead screw is mounted on the frame 231. 233. The lower end of the lead screw 233 is connected to the movable block 232 via a locking spring. The upper end of the lead screw 233 is equipped with a handwheel 234. Its function is as follows: the second motor 2371 drives the bottom roller 27 to rotate through the second gearbox 237. The sprocket on the bottom roller 27 drives the sprocket on the top roller 2321 to rotate via a chain, thereby realizing the synchronous rotation of the bottom roller 27 and the top roller 2321, thus clamping and conveying the artificial board located between them, ensuring the stable conveying of the artificial board within the area of ​​the second support 2. The mounting cylinder 236, the movable arm 2362, the end cover 2361, and the adjusting bolt 2363 form a chain tension adjustment structure. By rotating the adjusting bolt 2363, The position of the movable arm 2362 within the mounting cylinder 236 can be changed, allowing the sprocket on the movable arm 2362 to apply pressure to the chain between the fixed column 235 and the top roller 2321, adjusting the chain tension to ensure stable operation of the chain drive system and prevent chain slippage. Rotating the handwheel 234 drives the lead screw 233 to rotate, which in turn drives the movable block 232 to move up and down within the frame 231, thereby adjusting the height of the top roller 2321. This adapts to the conveying needs of engineered wood panels of different thicknesses and allows for adjustment of the clamping pressure between the top roller 2321 and the bottom roller 27 according to the characteristics of the panels and production requirements, ensuring smooth conveying of the panels without damage.

[0037] In this invention, a fixing rod 26 is installed between the front side plate 23 and the rear side plate 22. Six locking seats 261 are installed on the fixing rod 26 by bolts, and bottom wheels 262 are installed on the locking seats 261. Its function is that the fixing rod 26 is installed across the front side plate 23 and the rear side plate 22. The six locking seats 261 and bottom wheels 262 installed on it can support the artificial board, provide a stable support surface for the board, share the weight of the board during the conveying process, prevent the board from sinking or deforming due to its own weight or conveying pressure, and ensure that the board remains flat.

[0038] In this invention, two round rods 28 are fixed between the front side plate 23 and the rear side plate 22. Three mounting seats 281 are bolted onto each of the two round rods 28. Air nozzles 282 are mounted on the mounting seats 281. Two diverter valves 284 are bolted onto the rear side plate 22. The diverter valves 284 are connected to the air nozzles 282 via flexible hoses. A partition plate 283 is bolted onto the second bracket 2. A connecting seat 2831 is bolted onto the partition plate 283. The air outlet of the connecting seat 2831 is connected to the two diverter valves via a flexible hose. 284 is connected, and the air inlet of the connector 2831 is connected to the external air supply equipment. Its function is: the external air supply equipment delivers compressed air to the air nozzle 282 through the connector 2831, the diverter valve 284 and the hose. The air nozzle 282 sprays a high-speed airflow onto the surface of the artificial board, which can effectively blow away the tiny dust, debris and other impurities that the cleaning brush 251 could not completely remove, perform secondary cleaning on the surface of the board, ensure that the surface of the board is clean, provide better surface conditions for the spraying of environmentally friendly adhesive, and enhance the adhesion between the environmentally friendly adhesive and the board.

[0039] In Example 2, based on Example 1, a third support 3 is welded to the right side of the second support 2. Two support plates 31 are fixedly installed on the third support 3, and two fixed cylinders 311 are fixedly installed on the support plates 31. Support screws 312 are threaded onto the internal threads of the fixed cylinders 311. A threaded hole is provided at the upper end of the support screw 312, and a support plate 32 is bolted to the upper end of the support screw 312. A welding seat 33 is fixed on the third support 3, and two connecting rollers 331 are installed on the welding seat 33. A support frame 34 is fixed on the support plate 32, and a sliding plate 35 is movable on the support frame 34. A third motor 341 is bolted to the support frame 34, and a rotating column 342 is mounted on the support frame 34 via bearings. Pulleys are installed on both the rotating column 342 and the output shaft of the third motor 341. The output shaft of the third motor 341 is connected to the rotating column 342 via a belt. Two mating... Wheel 343, with a transmission belt 344 connecting wheel 343 and rotating column 342, and sliding plate 35 fixedly connected to transmission belt 344. Its function is to adjust the height of pallet 32 ​​by rotating support screw 312 to change its extension length in fixed cylinder 311. When the artificial board is conveyed from the second support 2 to the third support 3 area, connecting roller 331 can receive and guide the artificial board to transition smoothly, reducing jamming and offset during board conveying, allowing the board to smoothly enter the spraying area, and ensuring the continuity of the entire production process. The third motor 341 drives rotating column 342 to rotate via belt. Rotating column 342 and wheel 343 are connected via transmission belt 344, transmitting power to sliding plate 35. Sliding plate 35 is fixedly connected to transmission belt 344 and performs reciprocating linear motion under the drive of transmission belt 344, achieving uniform coverage of environmentally friendly adhesive on the surface of artificial board, improving spraying efficiency and quality.

[0040] In Example 3, based on Examples 1 and 2, a sliding plate 351 is bolted onto the sliding plate 35. The sliding plate 351 has a sliding groove, and five top blocks 352 are installed within the groove. A bottom block 353 is bolted to the lower end of each top block 352, and a nozzle 354 is installed at the lower end of the bottom block 353. The upper end of the nozzle 354 is connected to the bottom block 353. The bottom block 353 is connected to an external environmentally friendly adhesive supply device via a flexible hose. Its function is to provide a track for the top blocks 352 within the sliding plate 351, allowing the five top blocks 352 to flexibly adjust their position along the width of the engineered wood panel within the groove. This, in turn, moves the bottom block 353 and the nozzle 354, adapting to different widths of engineered wood panels for spraying. Simultaneously, the nozzle spacing can be adjusted according to actual spraying requirements, ensuring that the spraying range and density meet process requirements.

[0041] The working principle of this invention is as follows: A first electric motor 132 drives the conveyor roller 12 to rotate via a first gearbox 131. The support roller 121 and sprocket on the conveyor roller 12 work together to move the engineered wood panel forward on the first support 1. Simultaneously, a second electric motor 2371 drives the bottom roller 27 to rotate via a second gearbox 237. The sprocket on the bottom roller 27 drives the top roller 2321 to rotate synchronously via a chain, causing the engineered wood panel to be clamped and conveyed within the area of ​​the second support 2. Rotating the handwheel 234 and adjusting the screw 233 changes the height of the top roller 2321 to accommodate conveying engineered wood panels of different thicknesses. During conveying, the engineered wood panel first passes between the first cover plate 24 and the second cover plate 25, where the cleaning brush 251 performs a preliminary cleaning of the panel surface, removing dust, debris, and other impurities. Subsequently… Under the action of the external air supply equipment, the air nozzle 282 sprays high-speed airflow onto the surface of the artificial board to further remove tiny impurities and ensure the cleanliness of the board surface. The diversion valve 284 evenly distributes compressed air to each air nozzle 282 to ensure consistent cleaning effect. The third motor 341 drives the rotating column 342 to rotate via a belt. The rotating column 342 drives the sliding plate 35 to reciprocate via the transmission belt 344. The sliding plate 35 drives the sliding groove plate 351, top block 352, bottom block 353 and nozzle 354 to move synchronously. The external environmentally friendly adhesive supply equipment delivers the environmentally friendly adhesive to the bottom block 353 through a hose, and then sprays it onto the surface of the artificial board through the nozzle 354. The lateral movement of the nozzle 354 combined with the longitudinal conveying of the artificial board achieves cross-coverage of the environmentally friendly adhesive on the surface of the board, ensuring uniform spraying.

[0042] The following points should be noted in this article: 1. The accompanying drawings of the embodiments of the present invention only involve the structures involved in the embodiments of the present invention; other structures can refer to general designs.

[0043] 2. Where there is no conflict, the embodiments of the present invention and the features thereof can be combined with each other to obtain new embodiments.

[0044] The above are merely specific embodiments of the present invention, but the scope of protection of the present invention is not limited thereto. Any changes or substitutions that can be easily conceived by those skilled in the art within the scope of the technology disclosed in the present invention should be included within the scope of protection of the present invention.

Claims

1. A device for uniformly spraying environmentally friendly adhesive onto engineered wood panels, comprising: The first support (1) is characterized in that two parallel top plates (11) are installed on the upper end of the first support (1), and multiple conveying rollers (12) are installed between the two top plates (11) through bearings. Multiple support rollers (121) are installed on the conveying rollers (12) at intervals, and sprockets are provided at the ends of the conveying rollers (12). A seat plate (13) is installed on the first support (1), and a sliding groove is provided on the first support (1). A first gearbox (131) and a first motor (132) are installed on the seat plate (13). A sprocket is installed on the output shaft of the first gearbox (131), and a chain is wound between the sprocket of the conveying rollers (12) and the sprocket of the output shaft of the first gearbox (131). A base frame (14) is fixed on the first support (1). A first movable plate (141) and a second movable plate (142) slide on the base frame (14). A rotatable rotating rod (1421) is installed on both the first movable plate (141) and the second movable plate (142). A rotatable rotating plate (143) is installed on the base frame (14). A connecting rod (1431) is connected between the rotating plate (143) and the first movable plate (141) and the second movable plate (142). A hydraulic rod (144) is installed on the base frame (14). The piston rod of the hydraulic rod (144) is connected to the second movable plate (142). The rotating rod (1421) is located between two adjacent sets of conveying rollers (12).

2. The environmentally friendly adhesive spraying device for engineered wood panels capable of uniform spraying according to claim 1, characterized in that, A second bracket (2) is installed on the right side of the first bracket (1). A base plate (21) is installed on the upper end of the second bracket (2). A front side plate (23) and a rear side plate (22) are installed on the front and rear ends of the base plate (21), respectively. A first cover plate (24) is installed between the front side plate (23) and the rear side plate (22). A second cover plate (25) is installed on the first cover plate (24) via a hinge. A cleaning brush (251) is installed on both the first cover plate (24) and the second cover plate (25).

3. The environmentally friendly adhesive spraying device for engineered wood panels capable of uniform spraying according to claim 2, characterized in that, A frame (231) is installed on both the front side plate (23) and the rear side plate (22). A movable block (232) is movable inside the frame (231). A top roller (2321) is installed between the two movable blocks (232) via a bearing. A bottom roller (27) is installed between the front side plate (23) and the rear side plate (22) via a support. A sprocket is installed on both the bottom roller (27) and the top roller (2321). A fixed column (235) is fixed on the front side plate (23). A sprocket is installed on the fixed column (235). The sprocket on the bottom roller (27), the sprocket on the top roller (2321), and the sprocket on the fixed column (235) are connected and driven by a chain. A second gearbox (237) is installed on the front side plate (23). The output shaft of the second gearbox (237) is connected to the bottom roller (27). A second motor (2371) is installed on the second gearbox (237).

4. The environmentally friendly adhesive spraying device for engineered wood panels capable of uniform spraying according to claim 3, characterized in that, An mounting cylinder (236) is installed on the front side plate (23). A movable arm (2362) is movable inside the mounting cylinder (236). A sprocket is installed on the movable arm (2362). A threaded hole is provided on the movable arm (2362). The sprocket on the movable arm (2362) is pressed against the chain between the fixed column (235) and the top roller (2321). An end cover (2361) is installed on the mounting cylinder (236). An adjusting bolt (2363) is installed on the end cover (2361) through a locking spring. The adjusting bolt (2363) is threaded into the threaded hole on the movable arm (2362). A lead screw (233) is installed on the frame (231). The lower end of the lead screw (233) is connected to the movable block (232) through a locking spring. A handwheel (234) is installed on the upper end of the lead screw (233).

5. The environmentally friendly adhesive spraying device for engineered wood panels capable of uniform spraying according to claim 4, characterized in that, A fixing rod (26) is installed between the front side plate (23) and the rear side plate (22). Multiple locking seats (261) are provided at intervals on the fixing rod (26), and bottom wheels (262) are installed on the locking seats (261).

6. The environmentally friendly adhesive spraying device for engineered wood panels capable of uniform spraying according to claim 5, characterized in that, Two round rods (28) are fixed between the front side plate (23) and the rear side plate (22). Multiple mounting seats (281) are installed on the two round rods (28) by bolts. Air nozzles (282) are installed on the mounting seats (281). Two diversion valves (284) are installed on the rear side plate (22). The diversion valves (284) are connected to the air nozzles (282) through hoses. A partition (283) is installed on the second bracket (2). A connecting seat (2831) is installed on the partition (283). The air outlet of the connecting seat (2831) is connected to the two diversion valves (284) through hoses. The air inlet of the connecting seat (2831) is connected to the external air supply equipment.

7. The environmentally friendly adhesive spraying device for engineered wood panels capable of uniform spraying according to claim 6, characterized in that, A third bracket (3) is welded to the right side of the second bracket (2). Two support plates (31) are installed on the third bracket (3). Two fixed cylinders (311) are fixed on the support plates (31). A support screw (312) is screwed into the internal thread of the fixed cylinder (311). A threaded hole is provided at the upper end of the support screw (312). A support plate (32) is installed at the upper end of the support screw (312) by bolts.

8. The environmentally friendly adhesive spraying device for engineered wood panels capable of uniform spraying according to claim 7, characterized in that, The third support (3) is fixed with a welding seat (33), and two connecting rollers (331) are installed on the welding seat (33).

9. The environmentally friendly adhesive spraying device for engineered wood panels capable of uniform spraying according to claim 7, characterized in that, A support frame (34) is fixed on the support plate (32), a sliding plate (35) is movable on the support frame (34), and a third motor (341) is installed on the support frame (34). A rotating column (342) is installed on the support frame (34) through a bearing. Both the rotating column (342) and the output shaft of the third motor (341) are equipped with pulleys. The output shaft of the third motor (341) is connected to the rotating column (342) through a belt. Two mating wheels (343) are installed on the support frame (34), and a transmission belt (344) is connected between the mating wheels (343) and the rotating column (342). The sliding plate (35) is fixedly connected to the transmission belt (344).

10. The environmentally friendly adhesive spraying device for engineered wood panels capable of uniform spraying according to claim 9, characterized in that, A sliding plate (351) is bolted onto the sliding plate (35). A sliding groove is provided on the sliding plate (351). Multiple top blocks (352) are installed in the sliding groove. A bottom block (353) is bolted to the lower end of the top block (352). A nozzle (354) is installed at the lower end of the bottom block (353). The upper end of the nozzle (354) is connected to the bottom block (353). The bottom block (353) is connected to an external environmentally friendly adhesive supply device through a hose.

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