Wood rounding machine

Abstract

The invention discloses a wood rounding machine, which belongs to the technical field of wood processing equipment, and comprises a rack and a sliding frame, the rack is placed on the ground and is used for supporting the whole rounding machine, and the sliding frame slides on the outer surface of the rack; a protection device capable of preventing wood chips from flying out of the rounding machine to injure personnel in the machining process is arranged on the outer surface of the machine frame and comprises two frame rods and two baffles, and the two ends of each baffle are rotationally connected with two sliding blocks. The protection device in the scheme can drive the sliding rod to slide up and down on the inner wall of the groove rod according to the movement of the sliding frame on the outer surface of the rack in the process of using the rounder so as to control the sliding rod and the baffles to ascend and descend, and when the sliding frame is close to one side of the rack, the two baffles at the top end of the sliding rod are obliquely unfolded; the upper portions of the first cutting roller and the second cutting roller for wood processing are covered for blocking, and the situation that battens or wood chips splash outwards in the processing process and hurt operators is avoided as much as possible.

Description

Technical Field

[0001] The invention relates to the technical field of wood processing equipment, and more specifically to a wood rounding machine. Background Art

[0002] Wood rounding machine is a woodworking machinery used to process square or irregular wood into cylindrical shape. It is widely used in furniture making, building components, handicraft processing and other fields. The rod-shaped wood is pushed between the cutting rollers on both sides of the rounding machine, and the surface of the wood is cut and rounded by the continuous rotation of the cutting rollers.

[0003] When using a rounding machine to cut the surface of wood, if cracks appear inside the wood, the wood may be partially broken at the cracks due to the squeezing of the cutting rollers on both sides during the cutting process, and the wood may fly out of the rounding machine due to the impact force of the cutting rollers, causing injuries to personnel, resulting in the problem of low safety when using the rounding machine. In addition, when processing a batch of wood, wood chips and strips produced by cutting accumulate inside the rounding machine, requiring multiple shutdowns for cleaning, resulting in reduced processing efficiency.

[0004] For this purpose, a wood rounding machine is proposed. Summary of the invention

[0005] In view of the problems existing in the prior art, the object of the present invention is to provide a wood rounding machine.

[0006] To solve the above problems, the present invention adopts the following technical solutions.

[0007] A wood rounding machine, comprising a frame and a sliding frame. The frame is placed on the ground to support the whole rounding machine, and the sliding frame slides on the outer surface of the frame. One side of the top of the frame is provided with a control box and a first driving component. Two first cutting rollers are rotatably arranged on one side of the frame, and one end of the two first cutting rollers is connected by a chain and sprocket group. The first driving component includes a sprocket installed on one side of the frame and a reduction motor for driving the sprocket to rotate. One end of a first cutting roller is connected to the sprocket of the first driving component through a sprocket and chain group. Operating the reduction motor of the first driving component can drive the two first cutting rollers to rotate in the same direction through the sprocket and chain group. One side of the bottom end of the frame is provided with a discharge chute. Hydraulic rods are arranged on both sides of the frame, and the output rods of the hydraulic rods are fixedly connected to one side of the sliding frame. Operating the hydraulic rods can control the sliding frame to slide on the outer surface of the frame. A second driving component is arranged at the top of the sliding frame. The second driving component includes a sprocket installed on the top of the sliding frame and a reduction motor for driving the sprocket to rotate. A second cutting roller is rotatably arranged on one side of the sliding frame. One end of the second cutting roller is provided with a sprocket and is connected to the sprocket of the second driving component through a chain. Operating the reduction motor of the second driving component to drive the sprocket to rotate and transmitting through the chain can control the second cutting roller to rotate. A plurality of support rods are fixedly connected to one side of the sliding frame, and the support rods are located below the second cutting roller. One side of the bottom end of the sliding frame is provided with a miscellaneous material chute.

[0008] Furthermore, the outer surface of the frame is provided with a protective device to prevent wood chips and wood from flying out of the rolling machine and causing injuries to personnel during processing. The protective device includes two frame rods, one end of the two frame rods are respectively fixedly connected to the two sides of the sliding frame, one end of the inner wall of the frame rod is slidably connected to the first gear rod, the first gear rod is fixed to the outer surface of the frame rod through a locking assembly, the two sides of the frame are respectively rotatably connected to the first rotating shaft, one end of the first rotating shaft is fixedly connected to the first gear, the first gear is meshed with the bottom end of the first gear rod, the outer surface of the first rotating shaft is fixedly connected to a pull rope, the two sides of the frame are respectively fixedly connected to the slot rod, the inner wall of the slot rod is slidably connected to the sliding rod, and the bottom end of the sliding rod is provided with a first spring, the first spring is installed inside the slot rod for adjusting the position of the sliding rod inside the slot rod The top end of the second gear is engaged with the first and second gears and the bottom end of the second gear is engaged with the first and second gears of the first and second gears of the first and second gears of the first and second gears of the second gears.

[0009] Furthermore, a first coil spring is provided at one end of the second rotating shaft, and two ends of the first coil spring are respectively fixedly connected to one side of the second rotating shaft and one side of the inner wall of the sliding rod.

[0010] Furthermore, a positioning block is fixedly connected to one end of the guide rod away from the baffle, and a side of the positioning block close to the guide rod is attached to one side of the surface of the slot block.

[0011] Furthermore, a blocking cloth is fixedly connected to one side of the top end of the baffle, and a side of the blocking cloth away from the baffle is fixedly connected to the top end of the sliding rod, and the blocking cloth is polyurethane glass fiber cloth.

[0012] Furthermore, an auxiliary ring is fixedly connected to one side of the inner wall of the slot rod, the inner wall edge of the auxiliary ring is arc-shaped, and the auxiliary ring is located outside the connection between the pull rope and the inner wall of the slot rod.

[0013] Furthermore, the locking assembly includes a plurality of round rods, the bottom ends of the round rods are fixedly connected to the top ends of the first gear rods, the round rods slide on the inner wall of the frame rod, the top ends of the first gear rods are rotatably connected to an operating rod, the top ends of the operating rods are fixedly connected to two clamping blocks, and a clamping groove is provided on one side of the top ends of the frame rods.

[0014] Furthermore, an operating block is fixedly connected to the top end of the operating rod, and grooves are formed on both sides of the operating block.

[0015] Furthermore, an expansion device is provided on the outer surface of the sliding frame, and the expansion device includes two tooth plates, and the two tooth plates are respectively fixed on both sides of the frame; the outer surface of the sliding frame is rotatably connected to a third rotating shaft, and the two ends of the third rotating shaft are respectively fixedly connected to a third gear and a fourth gear, and the fourth gear is located on the inner side of the third gear, and the outer surface of the third gear is meshed with one side of the bottom end of the tooth plate; the two ends of the third rotating shaft are respectively fixedly connected to rectangular rods, and the side where the two rectangular rods are close to each other is rotatably connected to the fourth rotating shaft, and a second coil spring is provided at one end of the fourth rotating shaft, and the two ends of the second coil spring are respectively connected to the fourth rotating shaft One side of the fourth rotating shaft is fixedly connected to one side of the inner wall of the rectangular rod, and two ends of the fourth rotating shaft are respectively fixedly connected to a stop block, and a protrusion is fixedly connected to the outer surface of the rectangular rod close to the fourth rotating shaft, and a plurality of support rods are fixedly connected to the outer surface of the fourth rotating shaft, and the bottom end of the support rod is fixedly connected to a stop rod, and one end of the stop rod is provided with a rotating rod, and the expansion device also includes a unloading plate, the bottom end of the unloading plate is fixedly connected to a fifth rotating shaft, and the two ends of the fifth rotating shaft are rotatably connected to rollers, and sliding grooves are provided on both sides of the bottom end of the frame, and the rollers move inside the sliding grooves, and the two ends of the rotating rod are rotatably connected to one end of the stop rod and one end of the unloading plate respectively.

[0016] Furthermore, the expansion device also includes a slot plate, the slot plate is fixed to the outer surface of the second rotating shaft, the inner wall of the slot plate is slidably connected to a sliding plate, one end of the sliding plate is fixedly connected to a plurality of push rods, one end of the sliding plate is provided with a plurality of third springs, the two ends of the third spring are respectively fixedly connected to the top of the inner wall of the slot plate and one end of the sliding plate, one end of the sliding plate is fixedly connected to two connecting rods, the connecting rod slides on one end of the inner wall of the slot plate, the end of the connecting rod away from the sliding plate is rotatably connected to a rotating wheel, rectangular slots are opened on both sides of the sliding frame, and the The inner wall of the rectangular groove is slidably connected with a bending rod, one end of the bending rod is fixedly connected with a semicircular block, the rotating wheel moves on the bottom surface of the semicircular block, and a fourth spring is provided at the top of the semicircular block, and the upper and lower ends of the fourth spring are respectively fixedly connected to one side of the inner wall of the sliding frame and the top of the semicircular block, and the end of the bending rod away from the semicircular block is slidably connected with a sliding tooth, and a plurality of fifth springs are provided on one side of the sliding tooth, and the two ends of the fifth spring are respectively fixedly connected to one side of the sliding tooth and one side of the bending rod, and one side of the sliding tooth is meshed with the outer surface of the fourth gear.

[0017] Compared with the prior art, the present invention has the following beneficial effects: (1) By setting up a protective device, during the use of the rounding machine, the sliding frame moves on the outer surface of the frame to drive the sliding rod to slide up and down on the inner wall of the groove rod to control the lifting of the sliding rod and the baffle. When the sliding frame is close to one side of the frame, the two baffles on the top of the sliding rod are obliquely expanded to cover the top of the first cutting roller and the second cutting roller for processing the wood, thereby preventing the wood strips or wood chips from splashing outward during the processing to cause harm to the operator.

[0018] (2) By setting a locking assembly, the first gear rod can be extended or retracted into the frame rod by rotating the operating lever to adjust the angle between the card block and the card slot, so as to facilitate the adjustment of the movement of the sliding frame to drive the protection device to operate or stop the protection device, thereby improving the flexibility of the protection device when used.

[0019] (3) By setting a discharge plate, the third rotating shaft is driven to rotate when the sliding frame moves toward the direction of the frame, so that the push rod swings toward the direction of the frame to push the discharge plate to move, and during the movement of the discharge plate, one end of the discharge plate is pulled upward by the rotating rod, so that the discharge plate slides toward the direction of the frame at an inclined angle, and the wood on the top surface of the discharge plate is discharged, so as to avoid as much as possible the processed wood from piling up at the discharge slot of the frame, which requires stopping the machine to take out the wood at regular intervals, thereby affecting the processing efficiency of the rounding machine for the wood.

[0020] (4) By setting a push rod, the sliding frame is moved away from the frame to drive the third rotating shaft to rotate, so that the sliding plate is controlled to extend out of the groove plate during the rotation of the groove plate, and the wood chips and wood strips located in the miscellaneous material trough are pushed away from the inside of the miscellaneous material trough by the push rod, thereby reducing the number of times the machine needs to be stopped for cleaning the miscellaneous material trough, thereby improving the efficiency of using the rounding machine. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 It is a schematic diagram of the partial cross-sectional structure of the slot rod in the present invention; Figure 3 For the present invention Figure 2 A local enlarged structural schematic diagram; Figure 4 It is a structural schematic diagram of the pole mounting in the present invention; Figure 5 It is a structural schematic diagram of the frame in the present invention; Figure 6 It is a schematic diagram of the structure of the sliding frame in the present invention; Figure 7 It is a schematic diagram of the local cross-sectional structure of the sliding rod in the present invention; Figure 8 For the present invention Figure 7A schematic diagram of the local enlarged structure at B; Fig. 9 For the present invention Figure 7 A schematic diagram of the local enlarged structure at C; Fig.10 It is a schematic diagram of a partial cross-sectional structure of a sliding frame in the present invention; Fig.11 For the present invention Fig.10 A schematic diagram of the local enlarged structure at D; Fig.12 It is a structural schematic diagram of the round rod in the present invention; Fig.13 It is a schematic diagram of the local cross-sectional structure of the slot plate in the present invention; Fig.14 It is a schematic diagram of the structure of the bending rod in the present invention.

[0022] Description of the numbers in the figure: 1. Frame; 2. Guard; 3. Expanding device; 4. First drive assembly; 5. First cutting roller; 6. Hydraulic rod; 7. Sliding frame; 8. Second drive assembly; 9. Second cutting roller; 10. Discharging trough; 11. Miscellaneous material trough; 12. Support rod; 21. Frame rod; 22. First gear rod; 23. Locking assembly; 231. Round rod; 232. Slot; 233. Operating rod; 234. Block; 235. Operating block; 24. First rotating shaft; 25. First gear; 26. Pull rope; 27. Slot rod; 28. Sliding rod; 29. ​​First spring; 210. Slot block; 211. Second rotating shaft; 212. Second gear; 213. Diamond block; 214. Second gear rod; 215. Sliding block; 216. Baffle; 217. Second spring; 218. Guide rod; 219, guide groove; 220, positioning block; 221, cloth stop; 222, auxiliary ring; 223, first coil spring; 31, tooth plate; 32, third rotating shaft; 33, third gear; 34, rectangular rod; 35, fourth rotating shaft; 36, support rod; 37, stop rod; 38, rotating rod; 39, unloading plate; 310, fifth rotating shaft; 311, roller; 312, slide groove; 313, second coil spring; 314, stop block; 315, protrusion; 316, groove plate; 317, sliding plate; 318, third spring; 319, push rod; 320, connecting rod; 321, rotating wheel; 322, rectangular groove; 323, bending rod; 324, semicircular block; 325, fourth spring; 326, sliding tooth; 327, fifth spring; 328, fourth gear. DETAILED DESCRIPTION

[0023] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention; it is obvious that the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments, and all other embodiments obtained by ordinary technicians in this field based on the embodiments of the present invention without making creative work are within the scope of protection of the present invention.

[0024] See also Figure 1-6A wood rounding machine includes a frame 1 and a sliding frame 7. The frame 1 is placed on the ground to support the rounding machine as a whole. The sliding frame 7 slides on the outer surface of the frame 1. A control box and a first driving assembly 4 are arranged on one side of the top of the frame 1. Two first cutting rollers 5 are rotatably arranged on one side of the frame 1. One end of the two first cutting rollers 5 are connected through a chain sprocket group. The first driving assembly 4 includes a sprocket installed on one side of the frame 1 and a reduction motor for driving the sprocket to rotate. One end of a first cutting roller 5 is connected to the sprocket of the first driving assembly 4 through a sprocket chain group. The reduction motor for operating the first driving assembly 4 is driven by the sprocket chain group. The two first cutting rollers 5 can be driven to rotate in the same direction. A discharge trough 10 is provided on one side of the bottom end of the frame 1. Hydraulic rods 6 are provided on both sides of the frame 1. The output rods of the hydraulic rods 6 are fixedly connected to one side of the sliding frame 7. The operation of the hydraulic rods 6 can control the sliding frame 7 to slide on the outer surface of the frame 1. A second driving assembly 8 is provided on the top of the sliding frame 7. The second driving assembly 8 includes a sprocket installed on the top of the sliding frame 7 and a reduction motor for driving the sprocket to rotate. A second cutting roller 9 is rotatably provided on one side of the sliding frame 7. A sprocket is provided at one end of the second cutting roller 9 and is connected to the sprocket of the second driving assembly 8 through a chain. The operation of the second driving assembly 8 The reduction motor of the driving assembly 8 drives the sprocket to rotate and can control the rotation of the second cutting roller 9 through chain transmission. A plurality of supporting rods 12 are fixedly connected to one side of the sliding frame 7. The supporting rods 12 are located below the second cutting roller 9. A miscellaneous material trough 11 is provided on one side of the bottom end of the sliding frame 7. When the wood rounding machine is used to process the surface of the wood, the wood is placed on the top side of the frame 1. The control box on the top side of the frame 1 controls the operation of the first driving assembly 4 and the second driving assembly 8 to drive the first cutting roller 5 and the second cutting roller 9 to rotate, push the wood into one side of the two first cutting rollers 5, and control the hydraulic rod 6 to operate and retract at the same time. The contraction drives the slide frame 7 to slide in the direction of the frame 1, so that the wood is sandwiched between the two first cutting rollers 5 and the second cutting roller 9. The wood rolls through the rotation of the first cutting roller 5, and the bottom of the wood is supported by the support rod 12. The excess wood on the surface of the wood is cut off through the reverse rotation of the two first cutting rollers 5 and the second cutting roller 9. The wood strips and wood chips generated during the cutting process will follow the rotation of the second cutting roller 9 and enter the miscellaneous material groove 11 on the outer surface of the slide frame 7. After a period of processing, the slide frame 7 is moved away from the frame 1 by controlling the extension of the hydraulic rod 6, and the wood will fall to the discharge groove 10 at the bottom end of the frame 1. See also Figure 1-9The outer surface of the frame 1 is provided with a protective device 2 that can prevent wood chips and wood from flying out of the rounding machine during processing and causing harm to personnel. The protective device 2 includes two frame rods 21, one end of the two frame rods 21 is fixedly connected to the two sides of the sliding frame 7 respectively, one end of the inner wall of the frame rod 21 is slidably connected with a first gear rod 22, and the first gear rod 22 is fixed to the outer surface of the frame rod 21 through a locking assembly 23. The two sides of the frame 1 are rotatably connected with a first shaft 24, one end of the first shaft 24 is fixedly connected with a first gear 25, and the first gear 25 is meshed with the bottom end of the first gear rod 22. The outer surface of the first shaft 24 is fixedly connected with a pull rope 26, and the two sides of the frame 1 are fixedly connected with a groove rod 27, and the inner wall of the groove rod 27 is slidably connected with a sliding rod 28 A first spring 29 is provided at the bottom end of the sliding rod 28, and the first spring 29 is installed inside the slot rod 27 to limit the position of the sliding rod 28 inside the slot rod 27. The end of the pull rope 26 away from the first rotating shaft 24 is fixedly connected to the bottom end of the sliding rod 28, and a slot block 210 is fixedly connected to the top side of the sliding rod 28. The top of the inner wall of the sliding rod 28 is rotatably connected to a second rotating shaft 211, and the two ends of the second rotating shaft 211 are respectively fixedly connected to a second gear 212 and a diamond block 213. A second toothed rod 214 is fixedly connected to the top side of the slot rod 27, and the outer surface of the second gear 212 is meshed with one side of the second geared rod 214. The protective device 2 also includes two baffles 216, and the two ends of one baffle 216 are rotatably connected to two sliding rods. Block 215, the slider 215 slides on the inner wall of the slot block 210, and a second spring 217 is arranged on the top of the slider 215. The second spring 217 is installed on the outer surface of the slot block 210 to limit the position of the slider 215 inside the slot block 210. The two ends of the baffle 216 are fixedly connected with guide rods 218. The two ends of the slot block 210 are provided with guide grooves 219. One end of the guide rod 218 is located inside the guide groove 219. By setting the baffle 216, when the rounding machine is used, the first toothed rod 22 on the outer surface of the frame rods 21 on both sides of the sliding frame 7 enters the surface of the first gear 25 at one end of the first rotating shaft 24, which will drive the first gear 25 and the first rotating shaft 24 to rotate downward. Wrap one end of the pull rope 26 around the outer surface of the first rotating shaft 24, and pull the sliding rod 28 through the pull rope 26 to slide downward on the inner wall of the groove rod 27 and compress the first spring 29, so that most of the outer surface of the sliding rod 28 is inside the groove rod 27, and the height of the two baffles 216 is lowered. After the sliding rod 28 is lowered for a distance, the second gear 212 at one end of the second rotating shaft 211 at the top of the inner wall enters the outer surface of the second gear rod 214 and rotates on the outer surface of the second gear rod 214, and the diamond block 213 at the other end of the second rotating shaft 211 is driven to rotate through the second gear 212. When the diamond block 213 rotates, the top side and the bottom side will respectively push the sliders 215 located on both sides of the groove block 210 to move in the direction away from each other and compress the second spring 217.The two baffles 216 are driven by the slider 215 to move in the direction away from each other. At the same time, the guide rod 218 on one side of the baffle 216 will slide on the inner wall of the guide groove 219, so that the baffle 216 moves in the direction away from the slot block 210, and at the same time, one end is rotated downward to control the baffle 216 to tilt. When the sliding frame 7 moves to the side closest to the frame 1, the two baffles 216 are fully unfolded. The two unfolded baffles 216 can block the top of the first cutting roller 5 and the second cutting roller 9, so as to avoid as much as possible that wood strips or wood chips are splashed out during the processing to cause harm to the operator. After the wood processing is completed, when the sliding frame 7 is controlled to move away from the frame 1, the first gear rods 22 on both sides of the sliding frame 7 pass through the surface of the first gear 25 to drive the first gear 25 to rotate upward to release the pull rope 26 wrapped around the surface. At the same time, the first spring 29 compressed in the slot rod 27 pushes the sliding rod 28 to move upward, and the first spring 29 at one end of the second rotating shaft 211 The second gear 212 passes through the surface of the second gear rod 214, which drives the second rotating shaft 211 and the diamond block 213 to rotate in the original direction away from the surface of the slider 215. The compressed second spring 217 can push the slider 215 to move in the direction of the sliding rod 28, driving the baffle 216 to move, and retracting the two baffles 216 to facilitate the next piece of wood to be placed between the first cutting roller 5 and the second cutting roller 9 for processing. By setting the protective device 2, the sliding rod 28 is driven to slide up and down on the inner wall of the groove rod 27 according to the movement of the sliding frame 7 on the outer surface of the frame 1 during the use of the rounding machine, and the sliding rod 28 and the baffle 216 are controlled to rise and fall. When the sliding frame 7 approaches one side of the frame 1, the two baffles 216 at the top of the sliding rod 28 are obliquely expanded to cover the top of the first cutting roller 5 and the second cutting roller 9 of the processed wood to block it, so as to avoid the splashing of wood strips or wood chips during the processing to cause harm to the operator; See also Figure 2-8, one end of the second rotating shaft 211 is provided with a first torsion spring 223. The two ends of the first torsion spring 223 are respectively fixedly connected to one side of the second rotating shaft 211 and one side of the inner wall of the sliding rod 28. When the sliding rod 28 moves downward to make the second rotating shaft 211 rotate, the first torsion spring 223 on the outer surface will deform. After the sliding rod 28 returns to its original position, when the slider 215 pushes the diamond-shaped block 213 and the second rotating shaft 211 to rotate in the original direction, the second torsion spring 313 restores its deformation, which can limit the rotation angle of the second rotating shaft 211 and the diamond-shaped block 213, so that the second rotating shaft 211 and the diamond-shaped block 213 can rotate to the angle before rotation, ensuring the stability of the protection device 2 during operation. One end of the guide rod 218 far away from the baffle 216 is fixedly connected with a positioning block 220. One side of the positioning block 220 close to the guide rod 218 fits on one side of the surface of the groove block 210. During the process that the baffle 216 expands and contracts to drive the guide rod 218 to move inside the guide groove 219, one side of the positioning block 220 will slide on one side of the groove block 210. Through the positioning block 220, the angle between the guide rod 218 and the guide groove 219 can be further limited, and as much as possible, the angle deviation during the movement of the guide rod 218 can be avoided, which affects the normal movement of the baffle 216. One side of the top end of the baffle 216 is fixedly connected with a baffle cloth 221. One side of the baffle cloth 221 far away from the baffle 216 is fixedly connected to the top end of the sliding rod 28. The baffle cloth 221 is a polyurethane fiberglass cloth. When the two baffles 216 at the top end of the sliding rod 28 expand, they will pull the baffle cloth 221 on one side of the top end of the baffle 216 to expand. The baffle cloth 221 blocks the gap between the sliding rod 28 and the baffle 216, further improving the protection effect of the protection device 2. One side of the inner wall of the groove rod 27 is fixedly connected with an auxiliary ring 222. The inner wall edge of the auxiliary ring 222 is arc-shaped. The auxiliary ring 222 is located outside the connection between the pull rope 26 and the inner wall of the groove rod 27. During the operation of the protection device 2, the pull rope 26 will move along the arc-shaped edge of the inner wall of the auxiliary ring 222. Through the auxiliary ring 222, the wear on the surface of the pull rope 26 during movement can be reduced as much as possible, improving the service life of the protection device 2; Refer to Figure 2 , Figure 3 , Figure 6 and Fig.12The locking assembly 23 includes a plurality of round rods 231, the bottom end of the round rod 231 is fixedly connected to the top end of the first gear rod 22, the round rod 231 slides on the inner wall of the frame rod 21, the top end of the first gear rod 22 is rotatably connected to an operating rod 233, the top end of the operating rod 233 is fixedly connected to two clamping blocks 234, and a clamping groove 232 is provided on one side of the top end of the frame rod 21. When the protective device 2 is used normally, the tooth block at the bottom end of the first gear rod 22 protrudes from the bottom end surface of the frame rod 21, and the two clamping blocks 234 on the outer surface of the operating rod 233 are clamped on the upper and lower sides of the top end of the frame rod 21, and are perpendicular to the clamping groove 232 to fix the position of the first gear rod 22. When the rounding machine is inspected and maintained, the operating rod 233 can be rotated to control the operating rod 233 to rotate so that the clamping block 234 on the outer surface is parallel to the clamping groove 232. Then, the operating rod 233 is pulled to control the round rod 231 to slide upward on the inner wall of the frame rod 21, driving the first gear rod 22 to move upward, and the block 234 located below the top of the operating rod 233 is moved to the top of the frame rod 21, and then the operating rod 233 is pushed to rotate so that the block 234 and the slot 232 are perpendicular to each other, so that the first gear rod 22 is received into the frame rod 21, so that when the sliding frame 7 moves, the first gear rod 22 will not drive the first rotating shaft 24 to rotate and drive the protection device 2 to operate. The top of the operating rod 233 is fixedly connected to the operating block 235, and grooves are provided on both sides of the operating block 235. By pinching the grooves on both sides of the operating block 235, it is more convenient to rotate the operating block 235 to control the operating rod 233 to rotate or pull the operating block 235 to control the operating rod 233 to drive the first gear rod 22 to move up and down; See also Figure 1 , Figure 4 , Figure 5 , Figure 6 , Fig.10 and Fig.11 as well as Fig.13, the outer surface of the sliding frame 7 is provided with an expansion device 3, the expansion device 3 includes two tooth plates 31, the two tooth plates 31 are respectively fixed on both sides of the frame 1, the outer surface of the sliding frame 7 is rotatably connected with a third shaft 32, the two ends of the third shaft 32 are respectively fixedly connected with a third gear 33 and a fourth gear 328, the fourth gear 328 is located on the inner side of the third gear 33, the outer surface of the third gear 33 is meshed with one side of the bottom end of the tooth plate 31, the two ends of the third shaft 32 are respectively fixedly connected with a rectangular rod 34, the side of the two rectangular rods 34 close to each other is rotatably connected with a fourth shaft 35, one end of the fourth shaft 35 is provided with a second coil spring 313, the two ends of the second coil spring 313 are respectively connected with one side of the fourth shaft 35 and the rectangular One side of the inner wall of the rod 34 is fixedly connected, and both ends of the fourth rotating shaft 35 are respectively fixedly connected with a stopper 314, and a protrusion 315 is fixedly connected to the outer surface of the rectangular rod 34 near the fourth rotating shaft 35. The outer surface of the fourth rotating shaft 35 is fixedly connected with a plurality of support rods 36, and the bottom end of the support rod 36 is fixedly connected with a stopper 37, and a certain angle is formed between the stopper 37 and the support rod 36. A rotating rod 38 is arranged at one end of the stopper 37. The expansion device 3 also includes a discharge plate 39, and the bottom end of the discharge plate 39 is fixedly connected with a fifth rotating shaft 310, and the two ends of the fifth rotating shaft 310 are rotatably connected with rollers 311. Slide grooves 312 are provided on both sides of the bottom end of the frame 1, and the rollers 311 move inside the slide grooves 312. The two ends of the rotating rod 38 are respectively connected with the stopper One end of the rod 37 is rotatably connected to one end of the discharge plate 39. By setting the discharge plate 39, when the rounding machine is working, after the wood processing is completed, the sliding frame 7 is controlled to be away from the outer surface of the frame 1, so that the wood will fall to the surface of the discharge plate 39 below. When the sliding frame 7 is brought close to the frame 1 for the next wood processing, the third gears 33 at both ends of the third rotating shaft 32 will enter the outer surface of the tooth plate 31, and the third gear 33 and the third rotating shaft 32 are driven to rotate upward through the tooth plate 31, and the push rod 319 at the bottom of the rectangular rod 34 and the support rod 36 are driven to swing toward the direction of the frame 1 through the third rotating shaft 32, and the discharge plate 39 is pushed by the push rod 319 through the rollers 311 at both ends of the fifth rotating shaft 310 in the direction of the frame 1 inside the slide groove 312. When the support rod 36 swings, the rotating rod 38 at one end of the push rod 319 will rotate at one end of the push rod 319 and one end of the discharge plate 39, and the discharge plate 39 is pulled by the rotating rod 38 to follow the swing of the support rod 36 and the push rod 319 through the fifth rotating shaft 310 to rotate upward on the surfaces of the rollers 311 on both sides to change the angle, so that the discharge plate 39 slides toward the direction of the frame 1 at an angle inclined downward close to one end of the frame 1, so that the wood on the top surface of the discharge plate 39 rolls down from the inclined surface of the discharge plate 39 and is output from the discharge chute 10 of the frame 1. When the sliding frame 7 moves in the direction away from the frame 1, the third gear 33 passes through the outer surface of the tooth plate 31 to make the third rotating shaft 32 rotate in the original direction, driving the rectangular rod 34 and the support rod 36 to rotate.When the support rod 36 rotates until its surface is in contact with the outer surface of the sliding frame 7, the stopper 314 at the bottom end of the fourth rotating shaft 35 will contact the surface of the protrusion 315 on one side of the rectangular rod 34, so that the fourth rotating shaft 35 drives the support rod 36 to rotate in the direction away from the rectangular rod 34 during the continuous rotation of the third rotating shaft 32, and the second coil springs 313 at both ends are deformed, so that the position of the unloading plate 39 is controlled to be directly below the first cutting roller 5. By setting the unloading plate 39, the third rotating shaft 32 is driven to rotate when the sliding frame 7 moves in the direction of the frame 1, so that the push rod 319 swings in the direction of the frame 1 to push the unloading plate 39 to move, and in the process of the unloading plate 39 moving, the rotating rod 38 pulls one end of the unloading plate 39 to rotate upward, so that the unloading plate 39 slides in the direction of the frame 1 at an inclined angle, and the wood on the top surface of the unloading plate 39 is unloaded, so as to avoid the wood after processing from piling up at the discharge slot 10 of the frame 1 as much as possible, and the wood needs to be stopped and taken out every once in a while, which affects the processing efficiency of the rounding machine for wood.

[0025] See also Figure 4 , Figure 5 , Fig.10 , Fig.11 and Fig.13 as well as Fig.14The expansion device 3 also includes a slot plate 316, which is fixed to the outer surface of the second rotating shaft 211. The inner wall of the slot plate 316 is slidably connected to a sliding plate 317. One end of the sliding plate 317 is fixedly connected to a plurality of push rods 319. One end of the sliding plate 317 is provided with a plurality of third springs 318. The two ends of the third springs 318 are respectively fixedly connected to the top of the inner wall of the slot plate 316 and one end of the sliding plate 317. One end of the sliding plate 317 is fixedly connected to two connecting rods 320. The connecting rod 320 slides on one end of the inner wall of the slot plate 316. The end of the connecting rod 320 away from the sliding plate 317 is rotatably connected to a rotating wheel 321. Rectangular grooves 322 are provided on both sides of the sliding frame 7. The inner wall of the rectangular groove 322 is slidably connected to a bending rod 323. One end of the folding rod 323 is fixedly connected to a semicircular block 324, and the rotating wheel 321 moves on the bottom surface of the semicircular block 324. A fourth spring 325 is provided at the top of the semicircular block 324. The upper and lower ends of the fourth spring 325 are respectively fixedly connected to one side of the inner wall of the sliding frame 7 and the top of the semicircular block 324. The end of the bending rod 323 away from the semicircular block 324 is slidably connected to a sliding tooth 326. A plurality of fifth springs 327 are provided on one side of the sliding tooth 326. The two ends of the fifth spring 327 are respectively fixedly connected to one side of the sliding tooth 326 and one side of the bending rod 323. One side of the sliding tooth 326 meshes with the outer surface of the fourth gear 328. By setting the push rod 319, when the sliding frame 7 moves in the direction of the frame 1, the two ends of the second rotating shaft 211 When the third gear 33 at the end drives the second shaft 211 to rotate through the surface of the tooth plate 31, the slot plate 316 will follow the second shaft 211 to rotate. At the same time, the fourth gear 328 at one end of the second shaft 211 will rotate on one side of the sliding tooth 326, driving the sliding tooth 326 to move upward so that the bending rod 323 slides upward on the inner wall of the rectangular groove 322, and the semicircular block 324 is driven by the bending rod 323 to move away from the top of the rotating wheel 321 at one end of the connecting rod 320 and compress the fourth spring 325. After the bending rod 323 moves to the maximum distance, the fourth gear 328 continues to rotate, causing the sliding tooth 326 to contract and compress the fifth spring 327. At this time, when the slot plate 316 follows the rotation of the third shaft 32, the internal sliding plate 317 will not move to prevent the sliding plate The push rod 319 at one end of 317 extends out of the groove plate 316 to push the miscellaneous materials at the miscellaneous materials groove 11 toward the direction of the frame 1. When the sliding frame 7 moves in the direction away from the frame 1, the fourth gear 328 follows the third rotating shaft 32 to rotate in the original direction, and the fifth spring 327 returns to its original state, which will push the sliding tooth 326 to move outward and mesh with the surface of the fourth gear 328 again, and will cause the sliding tooth 326 to move downward on the outer surface of the fourth gear 328, driving the bending rod 323 to slide downward on the inner wall of the rectangular groove 322 and causing the fourth spring 325 to return to its original state, so that the bending rod 323 is located at the bottom end of the inner wall of the rectangular groove 322. At this time, the fourth gear 328 continues to rotate, and the bending rod 323 cannot move downward, which will cause the sliding tooth 326 to shrink again.At this time, when the slot plate 316 rotates along with the third rotating shaft 32, the rotating wheel 321 at one end of the connecting rod 320 will move on the bottom surface of the semicircular block 324, and push the connecting rod 320 to slide downward on the inner wall of the slot plate 316, so that the sliding plate 317 slides downward on the inner wall of the slot plate 316, stretching the third spring 318, and at the same time, a plurality of push rods 319 at one end extend out of the slot plate 316, so that during the rotation of the slot plate 316, the push rods 319 push the wood chips and wood strips located at the miscellaneous material trough 11 away from the inside of the miscellaneous material trough 11, reducing the number of times the machine needs to be stopped to clean the miscellaneous material trough 11, and improving the efficiency of using the rounding machine.

[0026] Directions: S1. When using the wood rounding machine to process the surface of the wood, the wood is placed on one side of the top of the frame 1, and the control box on the side of the top of the frame 1 controls the first driving component 4 and the second driving component 8 to drive the first cutting roller 5 and the second cutting roller 9 to rotate, so as to push the wood into one side of the two first cutting rollers 5 and control the hydraulic rod 6 to operate and contract at the same time. The hydraulic rod 6 is contracted to drive the sliding frame 7 to slide in the direction of the frame 1, so that the wood is clamped between the two first cutting rollers 5 and the second cutting rollers 9. The rotation of the first cutting roller 5 causes the wood to roll, and the support rod 12 is used to support the bottom of the wood. The two first cutting rollers 5 and the second cutting roller 9 rotate in the opposite direction to cut off the excess wood on the surface of the wood, and the wood strips generated during the cutting process are The wood chips will follow the rotation of the second cutting roller 9 and enter the miscellaneous material groove 11 on the outer surface of the sliding frame 7. When the sliding frame 7 moves toward the direction of the frame 1, the first toothed rod 22 on the outer surface of the frame rods 21 on both sides of the sliding frame 7 enters the surface of the first gear 25 at one end of the first rotating shaft 24, which will drive the first gear 25 and the first rotating shaft 24 to rotate downward, and wrap one end of the pull rope 26 around the outer surface of the first rotating shaft 24. The pull rope 26 pulls the sliding rod 28 to slide downward on the inner wall of the groove rod 27 and compresses the first spring 29, so that most of the outer surface of the sliding rod 28 is inside the groove rod 27, and the height of the two baffles 216 is lowered. After the sliding rod 28 is lowered for a distance, the second gear 212 at one end of the second rotating shaft 211 at the top of the inner wall enters the outer surface of the second toothed rod 214 and The outer surface of the second gear rod 214 rotates, and the diamond block 213 at the other end of the second rotating shaft 211 is driven to rotate through the second gear 212. When the diamond block 213 rotates, the top side and the bottom side will respectively push the sliders 215 located on both sides of the slot block 210 to move in the direction away from each other and compress the second spring 217, and the two baffles 216 are driven to move in the direction away from each other through the sliders 215. At the same time, the guide rod 218 on one side of the baffle 216 will slide on the inner wall of the guide groove 219, so that the baffle 216 moves in the direction away from the slot block 210 while one end rotates downward to control the baffle 216 to tilt. When the sliding frame 7 moves to the side closest to the frame 1, the two baffles 216 are fully unfolded, and the first cutting plate 216 can be cut by the two unfolded baffles 216. The cutting roller 5 and the second cutting roller 9 are blocked to prevent the wood strips or wood chips from splashing outwards and causing harm to the operator during the processing as much as possible. After a period of processing, the sliding frame 7 is moved away from the frame 1 by controlling the extension of the hydraulic rod 6, and the wood will fall to the top of the unloading plate 39. At this time, the first gear rods 22 on both sides of the sliding frame 7 pass through the surface of the first gear 25 to drive the first gear 25 to rotate upward to release the pull rope 26 wrapped around the surface. At the same time, the first spring 29 compressed inside the groove rod 27 pushes the sliding rod 28 to move upward, and the second gear 212 at one end of the second rotating shaft 211 passes through the surface of the second gear rod 214 to drive the second rotating shaft 211 and the diamond block 213 to rotate in the original direction away from the surface of the slider 215.The compressed second spring 217 can push the slider 215 to move in the direction of the sliding rod 28, driving the baffle 216 to move and retracting the two baffles 216. At the same time, the third gears 33 at both ends of the third rotating shaft 32 will move on the surface of the toothed plate 31 and drive the third rotating shaft 32 to rotate. The sliding tooth 326 moves downward on the outer surface of the fourth gear 328, driving the bent rod 323 to slide downward on the inner wall of the rectangular groove 322 and restoring the fourth spring 325 to its original state, so that the bent rod 323 is located at the bottom end of the inner wall of the rectangular groove 322. At this time, when the fourth gear 328 continues to rotate and the bent rod 323 cannot move downward, the sliding tooth 326 will contract again. At this time, when the groove plate 316 rotates with the third rotating shaft 32, the runner 321 at one end of the connecting rod 320 will move on the bottom surface of the semi-circular block 324 and push the connecting rod 320 to slide downward on the inner wall of the groove plate 316, so that the sliding plate 317 slides downward on the inner wall of the groove plate 316, stretching the third spring 318 and extending a plurality of push rods 319 at one end out of the inside of the groove plate 316. During the rotation of the groove plate 316, the sawdust, wooden strips, etc. located at the miscellaneous material groove 11 are pushed away from the inside of the miscellaneous material groove 11 through the push rods 319. S2. When the next wood is processed and the sliding frame 7 is brought close to the frame 1, the third gears 33 at both ends of the third rotating shaft 32 will enter the outer surface of the tooth plate 31, and the third gear 33 and the third rotating shaft 32 will be driven to rotate upward through the tooth plate 31, and the push rod 319 at the bottom of the rectangular rod 34 and the support rod 36 will be driven to swing toward the direction of the frame 1 through the third rotating shaft 32, and the unloading plate 39 will be pushed by the push rod 319 to move toward the direction of the frame 1 through the rollers 311 at both ends of the fifth rotating shaft 310 inside the slide groove 312. When the support rod 36 swings, the rotating rod 38 at one end of the push rod 319 will rotate at one end of the push rod 319 and one end of the unloading plate 39, and the rotating rod 38 Pull the unloading plate 39 to follow the swing of the support rod 36 and the push rod 319, and the fifth shaft 310 is rotated upward on the surface of the rollers 311 on both sides to change the angle, so that the unloading plate 39 slides toward the direction of the frame 1 at an angle close to the downward inclination of one end of the frame 1, so that the wood on the top surface of the unloading plate 39 rolls down from the inclined surface of the unloading plate 39 and is output from the discharge slot 10 of the frame 1. At the same time, when the sliding frame 7 moves toward the direction of the frame 1, the third gears 33 at both ends of the second rotating shaft 211 drive the second rotating shaft 211 to rotate through the surface of the tooth plate 31, and the slot plate 316 will rotate with the second rotating shaft 211. At the same time, the fourth gear 33 at one end of the second rotating shaft 211 drives the second rotating shaft 211 to rotate. The gear 328 will rotate on one side of the sliding tooth 326, driving the sliding tooth 326 to move upward so that the bending rod 323 slides upward on the inner wall of the rectangular groove 322, and the semicircular block 324 is driven by the bending rod 323 to move away from the rotating wheel 321 at one end of the connecting rod 320 and compress the fourth spring 325. After the bending rod 323 moves to the maximum distance, the fourth gear 328 continues to rotate to cause the sliding tooth 326 to contract and compress the fifth spring 327. At this time, when the slot plate 316 follows the rotation of the third rotating shaft 32, the internal sliding plate 317 will not move to prevent the push rod 319 at one end of the sliding plate 317 from extending out of the slot plate 316 to push the miscellaneous material slot 11 at When the miscellaneous materials are pushed toward the direction of the frame 1 and the sliding frame 7 moves away from the frame 1, the third gear 33 passes through the outer surface of the tooth plate 31 to make the third rotating shaft 32 rotate in the original direction, driving the rectangular rod 34 and the support rod 36 to rotate. When the support rod 36 rotates until its surface is in contact with the outer surface of the sliding frame 7, the stopper 314 at the bottom end of the fourth rotating shaft 35 will contact the surface of the protrusion 315 on one side of the rectangular rod 34, so that the third rotating shaft 32 continues to rotate, and the fourth rotating shaft 35 drives the support rod 36 to rotate in the direction away from the rectangular rod 34 and deforms the second coil springs 313 at both ends, thereby controlling the position of the unloading plate 39 to be directly below the first cutting roller 5.

[0027] The above is only a preferred specific implementation of the present invention; however, the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical solution and its improved conception within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A wood rounding machine, comprising a frame (1) and a sliding frame (7), characterized in that: The frame (1) is placed on the ground to support the whole rounding machine. The sliding frame (7) slides on the outer surface of the frame (1). A control box and a first driving assembly (4) are arranged on one side of the top of the frame (1). Two first cutting rollers (5) are rotatably arranged on one side of the frame (1). One end of the two first cutting rollers (5) are connected through a chain sprocket group. The first driving assembly (4) comprises a sprocket installed on one side of the frame (1) and a reduction motor for driving the sprocket to rotate. One end of a first cutting roller (5) is connected to the sprocket of the first driving assembly (4) through the sprocket chain group. The reduction motor for operating the first driving assembly (4) can drive the two first cutting rollers (5) to rotate in the same direction through the sprocket chain group. A discharge trough (10) is provided on one side of the bottom of the frame (1). Hydraulic rods (6) are arranged on both sides of the frame (1). The hydraulic rods (6) The output rod is fixedly connected to one side of the sliding frame (7); the operating hydraulic rod (6) can control the sliding frame (7) to slide on the outer surface of the frame (1); a second driving assembly (8) is arranged at the top of the sliding frame (7); the second driving assembly (8) comprises a sprocket mounted on the top of the sliding frame (7) and a reduction motor for driving the sprocket to rotate; a second cutting roller (9) is rotatably arranged on one side of the sliding frame (7); a sprocket is arranged at one end of the second cutting roller (9) and is connected to the sprocket of the second driving assembly (8) through a chain; the reduction motor of the operating second driving assembly (8) drives the sprocket to rotate and can control the rotation of the second cutting roller (9) through chain transmission; a plurality of supporting rods (12) are fixedly connected to one side of the sliding frame (7); the supporting rods (12) are located below the second cutting roller (9); and a miscellaneous material trough (11) is provided on one side of the bottom end of the sliding frame (7).

2. A wood rounding machine according to claim 1, characterized in that: The outer surface of the frame (1) is provided with a protective device (2) that can prevent wood chips and wood materials from flying out of the rounding machine during processing and causing harm to personnel. The protective device (2) comprises two frame rods (21), one end of each of the two frame rods (21) is fixedly connected to two sides of the sliding frame (7), one end of the inner wall of the frame rod (21) is slidably connected to a first gear rod (22), the first gear rod (22) is fixed to the outer surface of the frame rod (21) via a locking assembly (23), and the two sides of the frame (1) are rotatably connected to a first rotating shaft (24), one end of the first rotating shaft (24) is fixedly connected to the sliding frame (7), and the first gear rod (22) is fixedly connected to the outer surface of the frame rod (21) via a locking assembly (23). A first gear (25) is connected, the first gear (25) meshes with the bottom end of the first gear rod (22), a pull rope (26) is fixedly connected to the outer surface of the first rotating shaft (24), slot rods (27) are fixedly connected to the two sides of the frame (1), a sliding rod (28) is slidably connected to the inner wall of the slot rod (27), a first spring (29) is arranged at the bottom end of the sliding rod (28), the first spring (29) is installed inside the slot rod (27) and is used to limit the position of the sliding rod (28) inside the slot rod (27), and the pull rope (26) is away from the first rotating shaft (24). One end is fixedly connected to the bottom end of the sliding rod (28); a groove block (210) is fixedly connected to one side of the top end of the sliding rod (28); a second rotating shaft (211) is rotatably connected to the top end of the inner wall of the sliding rod (28); two ends of the second rotating shaft (211) are respectively fixedly connected to a second gear (212) and a diamond block (213); a second gear (214) is fixedly connected to one side of the top end of the groove rod (27); an outer surface of the second gear (212) is meshed with one side of the second gear (214); the protective device (2) further comprises two baffles (216), one of which is Two sliders (215) are rotatably connected at both ends of the baffle (216), and the sliders (215) slide on the inner wall of the slot block (210). A second spring (217) is provided at the top end of the slider (215), and the second spring (217) is installed on the outer surface of the slot block (210) and is used to limit the position of the slider (215) inside the slot block (210). Guide rods (218) are fixedly connected at both ends of the baffle (216), and guide grooves (219) are provided at both ends of the slot block (210), and one end of the guide rod (218) is located inside the guide groove (219).

3. A wood rounding machine according to claim 2, characterized in that: A first coil spring (223) is provided at one end of the second rotating shaft (211), and two ends of the first coil spring (223) are respectively fixedly connected to one side of the second rotating shaft (211) and one side of the inner wall of the sliding rod (28).

4. A wood rounding machine according to claim 2, characterized in that: One end of the guide rod (218) away from the baffle (216) is fixedly connected to a positioning block (220), and a side of the positioning block (220) close to the guide rod (218) is attached to a surface side of the slot block (210).

5. A wood rounding machine according to claim 2, characterized in that: A blocking cloth (221) is fixedly connected to one side of the top end of the baffle plate (216), and a side of the blocking cloth (221) away from the baffle plate (216) is fixedly connected to the top end of the sliding rod (28), and the blocking cloth (221) is polyurethane glass fiber cloth.

6. A wood rounding machine according to claim 2, characterized in that: An auxiliary ring (222) is fixedly connected to one side of the inner wall of the slot rod (27); the inner wall edge of the auxiliary ring (222) is arc-shaped; the auxiliary ring (222) is located outside the connection between the pull rope (26) and the inner wall of the slot rod (27).

7. A wood rounding machine according to claim 2, characterized in that: The locking assembly (23) comprises a plurality of round rods (231), the bottom ends of the round rods (231) being fixedly connected to the top ends of the first toothed rods (22), the round rods (231) sliding on the inner wall of the frame rod (21), the top ends of the first toothed rods (22) being rotatably connected to an operating rod (233), the top ends of the operating rods (233) being fixedly connected to two clamping blocks (234), and a clamping groove (232) being provided on one side of the top ends of the frame rods (21).

8. A wood rounding machine according to claim 7, characterized in that: An operating block (235) is fixedly connected to the top end of the operating rod (233), and grooves are formed on both sides of the operating block (235).

9. A wood rounding machine according to claim 1, characterized in that: The outer surface of the sliding frame (7) is provided with an expansion device (3), and the expansion device (3) includes two tooth plates (31), and the two tooth plates (31) are respectively fixed on both sides of the frame (1); the outer surface of the sliding frame (7) is rotatably connected to a third rotating shaft (32), and the two ends of the third rotating shaft (32) are respectively fixedly connected to a third gear (33) and a fourth gear (328), and the fourth gear (328) is located on the inner side of the third gear (33), and the outer surface of the third gear (33) is meshed with one side of the bottom end of the tooth plate (31); the two ends of the third rotating shaft (32) are respectively fixedly connected to a rectangular rod (34), and the side of the two rectangular rods (34) close to each other is rotatably connected to a fourth rotating shaft (35), and one end of the fourth rotating shaft (35) is provided with a second coil spring (313), and the two ends of the second coil spring (313) are respectively connected to one side of the fourth rotating shaft (35) and the rectangular rod (34). ), the fourth rotating shaft (35) is fixedly connected to one side of the inner wall of the rectangular rod (34), the two ends of the fourth rotating shaft (35) are respectively fixedly connected with a stopper (314), the outer surface of the rectangular rod (34) close to the fourth rotating shaft (35) is fixedly connected with a protrusion (315), the outer surface of the fourth rotating shaft (35) is fixedly connected with a plurality of supporting rods (36), the bottom end of the supporting rod (36) is fixedly connected with a stopper (37), one end of the stopper (37) is provided with a rotating rod (38), the expansion device (3) also includes a discharge plate (39), the bottom end of the discharge plate (39) is fixedly connected with a fifth rotating shaft (310), the two ends of the fifth rotating shaft (310) are rotatably connected with rollers (311), the bottom end of the frame (1) is provided with sliding grooves (312), the rollers (311) move inside the sliding grooves (312), and the two ends of the rotating rod (38) are respectively rotatably connected with one end of the stopper (37) and one end of the discharge plate (39).

10. A wood rounding machine according to claim 9, characterized in that: The expansion device (3) further comprises a slot plate (316), wherein the slot plate (316) is fixed to the outer surface of the second rotating shaft (211), the inner wall of the slot plate (316) is slidably connected to a sliding plate (317), one end of the sliding plate (317) is fixedly connected to a plurality of push rods (319), one end of the sliding plate (317) is provided with a plurality of third springs (318), the two ends of the third springs (318) are respectively fixedly connected to the top of the inner wall of the slot plate (316) and one end of the sliding plate (317), one end of the sliding plate (317) is fixedly connected to two connecting rods (320), the connecting rods (320) slide on one end of the inner wall of the slot plate (316), and one end of the connecting rod (320) away from the sliding plate (317) is rotatably connected to a rotating wheel (321), and rectangular grooves (322) are provided on both sides of the sliding frame (7), and the rectangular grooves (322) are provided on both sides of the sliding frame (7). A bending rod (323) is slidably connected to the inner wall of the shaped groove (322), one end of the bending rod (323) is fixedly connected to a semicircular block (324), the rotating wheel (321) moves on the bottom end surface of the semicircular block (324), a fourth spring (325) is arranged at the top end of the semicircular block (324), the upper and lower ends of the fourth spring (325) are respectively fixedly connected to one side of the inner wall of the sliding frame (7) and the top end of the semicircular block (324), a sliding tooth (326) is slidably connected to one end of the bending rod (323) away from the semicircular block (324), a plurality of fifth springs (327) are arranged on one side of the sliding tooth (326), two ends of the fifth spring (327) are respectively fixedly connected to one side of the sliding tooth (326) and one side of the bending rod (323), and one side of the sliding tooth (326) is meshed with the outer surface of the fourth gear (328).

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