CN109049145B - Non-damage high-quality plate processing production line - Google Patents

Abstract

The invention discloses a nondestructive high-quality plate processing production line which comprises a plate transverse cutting unit, a steering conveying unit and a plate longitudinal cutting unit, wherein the steering conveying unit is provided with a steering table, a roller assembly is arranged on the steering table, and the roller assembly comprises a roller lifting frame which is switched between an ascending state and a descending state. The longitudinal plate cutting unit comprises a cutter, wherein the cutter comprises a shell, a saw blade, a first rotating shaft and a leading cutter, and the leading cutter is arranged on the shell and positioned right in front of a cutting path of the saw blade so as to form a scribing groove on the lower plane of the wood before the saw blade cuts the wood. According to the invention, the wood board is conveyed to the longitudinal cutting unit of the board by the aid of the longitudinal rollers, sliding friction is changed into rolling friction in the steering process, abrasion of friction resistance on the surface of the board is greatly reduced, a cutting groove is formed on the lower surface of the board in advance by the front cutting tool after steering, and the saw blade carries out subsequent cutting on the board along the cutting groove, so that the board is effectively prevented from being broken.

Description

Non-damage high-quality plate processing production line

Technical Field

The invention relates to the field of plate processing, in particular to a non-damage high-quality plate processing production line.

Background

The cutting is the most common procedure in the subsequent processing of the wood board, in particular to the transverse cutting and the longitudinal cutting of the whole wood board so as to produce the wood boards with different specifications. More specifically, the wood board is cut through the saw blade on the transverse saw bench and the longitudinal saw bench, the transverse saw bench and the longitudinal saw bench are vertically arranged, the wood board is turned after being transversely cut through the transverse saw bench, the wood board is turned to the longitudinal saw bench and then is longitudinally cut, the hardness of some wood is small, and the surface of the wood board is easily damaged due to sliding friction force in the turning process.

In addition, as the plate is made of wood fibers, the wood fibers generally extend along the length direction of the wood, namely transversely, and when the saw teeth are longitudinally cut, the plate often drives the adjacent plate fibers to fall off together, so that the phenomenon of edge burst is formed.

Thus, the surface and the side edges of the plate are damaged to different degrees after the whole processing is finished, and a wood plate with relatively poor quality is often formed, so that the wood plate cannot be applied to high-grade places or products, and even becomes waste.

In view of this, the applicant has made diligent studies on the above problems in the prior art.

Disclosure of Invention

The invention mainly aims to provide a nondestructive high-quality plate processing production line, which effectively solves the problems of plate surface abrasion and plate side edge explosion.

In order to achieve the above object, the solution of the present invention is:

the automatic plate feeding unit, the plate transverse conveying unit, the plate transverse cutting unit and the plate accelerating conveying unit are sequentially connected to form a transverse cutting path, the plate longitudinal cutting unit, the plate longitudinal conveying unit and the plate conveying unit are sequentially connected to form a longitudinal cutting path, and the longitudinal cutting path and the transverse cutting path are vertically arranged and the steering conveying unit is arranged in an intersecting area of the longitudinal cutting path and the transverse cutting path;

the steering conveying unit is provided with a steering table, a plurality of transverse roller shafts are arranged on the steering table at intervals along the transverse direction, at least two roller assemblies are arranged between the two transverse roller shafts, each roller assembly comprises a roller lifting frame and a plurality of longitudinal rollers longitudinally arranged on the roller lifting frame, the roller lifting frame is switched between a lifting state and a descending state, the horizontal height of a section on the longitudinal rollers is higher than that of the section on the transverse roller shafts in the lifting state, and the horizontal height of the section on the longitudinal rollers is lower than that of the section on the transverse roller shafts in the descending state;

The longitudinal cutting unit for the plate comprises a cutter, the cutter comprises a shell, a saw blade, a first rotating shaft and a leading cutter, the saw blade is fixedly connected to the first rotating shaft, the first rotating shaft is rotatably connected to the shell and connected with a cutting motor, and the leading cutter is mounted on the shell and positioned right in front of a cutting path of the saw blade so as to form a scribing groove on the lower plane of the wood before the saw blade cuts the wood.

Further, each roller assembly further comprises two thin air cylinders, the two thin air cylinders are respectively arranged at two ends of the roller lifting frame, each thin air cylinder comprises a cylinder barrel and a piston rod, the cylinder barrel is fixed on the steering table, and the piston rod is connected with the roller lifting frame.

Further, each roller assembly further comprises a roller lifting frame fixing seat and a guide pillar, the roller lifting frame fixing seat is fixed on the steering table, the cylinder barrel and the guide pillar are fixed on the roller lifting frame fixing seat, and a guide hole for the guide pillar to pass through is formed in the middle of the roller lifting frame.

Further, the roller lifting frame is provided with a plurality of grooves and a sealing cover covered on the plurality of grooves, the sealing cover is provided with a plurality of through holes corresponding to the plurality of grooves, each longitudinal roller is correspondingly rotated and arranged in one groove, and the upper section of the longitudinal roller is exposed out of the through holes.

Further, the depth of the cutting groove is 0.2-0.5mm, and the width of the cutting groove is 0.1-0.2mm.

Further, the casing has installation mainboard, front end plate, installation curb plate and back end plate, first pivot rotatable coupling is on the installation mainboard, the saw bit is located between installation mainboard, front end plate, installation curb plate and the back end plate, be formed with the dismouting hole on the installation curb plate, still form the chip removal hole on the back end plate, the chip removal hole links to each other with the air exhauster.

Further, the cutter further comprises a front cutter seat, a locking bolt, a width adjusting mechanism and a height adjusting mechanism, wherein a vertical through hole is formed in the front cutter seat, the front cutter is movably sleeved in the vertical through hole, the width of the front cutter is matched with the width of the vertical through hole, the height adjusting mechanism is connected with the bottom of the front cutter, the locking bolt tightly pushes the front cutter against the front cutter seat, and the width adjusting mechanism is arranged on the shell to change the left and right positions of the front cutter seat.

Further, the steering conveying unit also comprises a push plate device, wherein the push plate device comprises a push frame, a connecting rod, a first transmission mechanism, a second rotating shaft, a second transmission mechanism, a bearing, a second speed reduction motor and a third transmission mechanism, and the bearing is sleeved on the second rotating shaft;

The first transmission mechanism comprises a first driving sprocket, a first driven sprocket and a first chain, the first chain is meshed with the first driving sprocket and the first driven sprocket, two ends of the connecting rod are respectively connected with the pushing frame and the first chain in a rotating way, and the first driving sprocket is fixed at one end of the second rotating shaft;

the second transmission mechanism comprises a second driving sprocket, a second driven sprocket and a second chain, the second chain is meshed with the second driving sprocket and the second driven sprocket, the second driving sprocket is fixed on an output shaft of the second speed reduction motor, and the second driven sprocket is fixedly sleeved on the bearing;

the third transmission mechanism comprises a first friction plate, a second friction plate, a third friction plate, a spring and a lock nut, wherein the lock nut is arranged at the other end of the second rotating shaft, the first friction plate is fixedly connected with the second driven sprocket and is rotationally sleeved on the second rotating shaft, the second friction plate is rotationally sleeved on the second rotating shaft, the third friction plate is fixedly connected with the second rotating shaft, the first friction plate, the second friction plate and the third friction plate are sequentially propped against and arranged between the second driven sprocket and the lock nut, and two ends of the spring are respectively connected with the third friction plate and the lock nut.

Further, the device also comprises a guide shaft and a plurality of sliding seats, wherein the sliding seats are symmetrically connected to two ends of the pushing frame, and each sliding seat penetrates through the guide shaft and slides on the guide shaft.

After the structure is adopted, the plate processing production line with high quality and no damage is related to the invention, the plate is conveyed to the plate longitudinal cutting unit by the aid of the longitudinal roller in the steering process, when longitudinal cutting is carried out after steering, the front cutter forms a cutting groove on the lower surface of the plate in advance, and the saw blade carries out subsequent cutting on the plate along the cutting groove.

Drawings

FIG. 1 is a flow chart of the present invention;

FIG. 2 is a schematic illustration of the structure of the steering table of the present invention;

FIG. 3 is a schematic view of the auxiliary raceway of the present invention;

FIG. 4 is a side view of the auxiliary raceway of the present invention;

FIG. 5 is a schematic view of a cutter according to the present invention;

FIG. 6 is a schematic view of the leading tool portion of FIG. 5 according to the present invention;

FIG. 7 is a schematic view of the push plate device of the present invention;

FIG. 8 is an enlarged schematic view of portion A of FIG. 7;

FIG. 9 is a schematic view of the sawing device of the present invention;

FIG. 10 is a schematic view of the structure of the accelerating sheet conveying unit according to the present invention;

FIG. 11 is a schematic structural view of a locking mechanism of the present invention;

FIG. 12 is a schematic view of a plate feeding device according to the present invention;

FIG. 13 is a schematic view showing a use state of the plate feeding device of the present invention;

FIG. 14 is a schematic view of the present invention with the arm of the positioning stacker lowered;

FIG. 15 is a schematic view of the structure of the stacker of the present invention with the arm raised;

FIG. 16 is a schematic view of a positioning stacker of the present invention having two arms;

FIG. 17 is a schematic view of the carriage assembly of the present invention;

FIG. 18 is a schematic view of the structure of the pallet truck of the truck assembly of the present invention with the lift plate raised;

FIG. 19 is a schematic view of the structure of the pallet truck of the truck assembly of the present invention as the lift plate is lowered;

in the figure:

a steering table-11; a transverse roll shaft-12;

the roller lifting frame-13, the groove-131, the sealing cover-132, the through hole-1321 and the guide hole-133; a longitudinal roller 14;

the device comprises a thin cylinder-15, a cylinder barrel-151 and a piston rod-152;

Roller lifting frame fixing seat-16; guide post-17;

the shell-21, the mounting main plate-211, the front end plate-212, the mounting side plate-213, the dismounting hole-2131, the rear end plate-214 and the chip removal hole-2141;

a saw blade-22; a first rotating shaft-23; leading cutter-24; wood board-25, cutting groove-251;

a leading blade holder-261, a vertical through hole-2611; a locking bolt-262, a width adjusting mechanism-263 and a height adjusting mechanism-264;

pushing frame-31; a connecting rod-32; a second rotating shaft-33; a bearing-34; a second gear motor-35;

a first transmission mechanism-36, a first driving sprocket-361, a first driven sprocket-362, a first chain-363, and a connecting shaft-364;

a second transmission mechanism-37, a second driving sprocket-371, a second driven sprocket-372, a second chain-373;

the third transmission mechanism-38, the first friction plate-381, the second friction plate-382, the third friction plate-383, the spring-384 and the lock nut-385;

guide shaft-391, sliding seat-392;

a main frame-41;

the movable sawing mechanism-42, the second saw blade-4201, the second rotating shaft-4202, the second motor-4203, the second synchronous belt-4204, the first gear motor-4205, the driving sprocket-4206, the driven sprocket-4207, the synchronous chain-4208, the adjusting screw rod-4209, the guide rail slider-4210, the linear guide rail-4211, the sliding seat-4212 and the slide rail base-4213;

The device comprises a fixed sawing mechanism-43, a first saw blade-431, a first rotating shaft-432, a first motor-433, a first synchronous belt-434, a fixed seat-435, a saw blade cover-436 and an exhaust pipe-437;

a position display-44; a driving wheel-45; driven wheel-46;

accelerating the fixing frame-51; accelerating the movable frame-52;

slide rail-53, locking groove-5301;

pushing frame cylinder-54; a drive motor-55; chain drive-56; a first driving pulley-57; conveyor belt-58;

pulley block-59, pin hole-5901;

an elevator-61; -62 of a plate;

hook plate component-63, hook plate frame-6301, hook plate-6302, inclined plane-6303;

a suction nozzle assembly-64; a proximity switch-65; a material placing frame-66; a synchronous belt-67; linear guide rail-68; a driving pulley-69; the third gear motor-610, the feeding roller-611, the feeding motor-612 and the feeding frame-613;

a frame-71;

the device comprises a blocking arm-72, a longitudinal stop block-721, a blocking rod-7211, a fixing rod-7212, a fixing piece-722 and a hook-723;

an oil cylinder-73;

transverse block-74, baffle-741, fixing plate-742;

safety chain-75;

a hydraulic station-81;

the lifting device comprises the following components of a small plate carriage-82, a travelling wheel-821, a transportation frame-822, an oil cylinder fixing seat-8221, a connecting rod-8222, a connecting rod fixing seat-8223 and a lifting plate-823;

carriage rail-83; hydraulic cylinder-84; a hydraulic motor-85; hydraulic oil line-86;

The roller assembly-87, roller-871, driving device-872, chain wheel-8721, chain-8722;

drag chain-88; and a plate-out stop block-89.

Detailed Description

In order to further explain the technical scheme of the invention, the invention is explained in detail by specific examples. In the figure, coordinates X and Y represent the lateral and longitudinal directions, respectively.

As shown in fig. 1-19, the invention relates to a non-damaged high-quality plate processing production line, which comprises an automatic plate feeding unit, a plate transverse conveying unit, a plate transverse cutting unit, a plate accelerating conveying unit, a steering conveying unit, a plate longitudinal cutting unit, a plate longitudinal conveying unit and a plate conveying unit, wherein the automatic plate feeding unit, the plate transverse conveying unit, the plate transverse cutting unit and the plate accelerating conveying unit are sequentially connected to form a transverse cutting path, the plate longitudinal cutting unit, the plate longitudinal conveying unit and the plate conveying unit are sequentially connected to form a longitudinal cutting path, the longitudinal cutting path and the transverse cutting path are vertically arranged, and the steering conveying unit is arranged in an intersection area of the longitudinal cutting path and the transverse cutting path.

The plate to be processed is firstly cut on a transverse cutting path, the plate to be processed is specifically and automatically moved into a plate transverse conveying unit through an automatic plate feeding unit, the plate transverse conveying unit conveys the plate to be processed to a plate transverse cutting unit for transverse two-side cutting, the plate after transverse cutting enters a plate accelerating conveying unit for accelerating operation and enters a steering conveying unit, so far, the plate is transversely cut, then the steering conveying unit pushes the plate to a longitudinal cutting path, the plate is directly pushed into a plate longitudinal cutting unit for longitudinal two-side cutting, the plate enters a plate longitudinal conveying unit after longitudinal cutting is finished, the plate is conveyed to a plate conveying unit through the plate longitudinal conveying unit, and the processed plate is finally and automatically conveyed away from a production line through the plate conveying unit.

As shown in fig. 2-4, the diverting conveyor unit is provided with a diverting table 11, and the diverting table 11 is provided with push plate means pushing in the longitudinal direction on the opposite side of the longitudinal conveyor unit for pushing the board from the diverting table 11 to the longitudinal conveyor unit. The turning table 11 is provided with a plurality of transverse roll shafts 12 at intervals in the transverse direction, and the plurality of transverse roll shafts 12 simultaneously rotate and convey the wood board to move in the transverse direction.

The steering conveying unit is also provided with at least two roller assemblies, each roller assembly is arranged between two transverse roller shafts 12, and a space is reserved for lifting the roller lifting frame 13. The roller assembly comprises a roller lifting frame 13, wherein the roller lifting frame 13 can do reciprocating lifting motion so as to switch between a lifting state and a descending state, and further comprises a plurality of longitudinal rollers 14 longitudinally arranged on the roller lifting frame 13, and the plurality of longitudinal rollers 14 are arranged on one roller lifting frame 13.

The roller lifting frame 13 is in a lifting state, the level of the tangential plane on the longitudinal roller 14 is higher than that on the transverse roller shaft 12, and the level of the tangential plane on the longitudinal roller 14 is lower than that on the transverse roller shaft 12 in a descending state.

As shown in fig. 5, the sheet material longitudinal cutting unit includes a cutter including a housing 21, a saw blade 22, a first rotation shaft 23, and a leading cutter 24.

The saw blade 22 is fixedly connected to a first rotating shaft 23, the first rotating shaft 23 is rotatably connected to the housing 21 and is connected to a cutting motor, and the leading cutter 24 is mounted on the housing 21 and is positioned right in front of a cutting path of the saw blade 22 to form a scribing groove 251 in a lower plane of the wood board 25 before the saw blade 22 cuts into the wood board 25.

In a specific application, a sharp cutter is required, and the cutting track of the saw blade 22 and the cutting groove 251 formed by the leading cutter 24 are synchronized, so that the situation of no edge burst can be realized.

Preferably, the depth of the scribe line 251 is 0.2-0.5mm, and the width of the scribe line 251 is 0.1-0.2mm, so as to allow subsequent sawing without edge burst

Therefore, one of the innovation points of the invention is that two roller assemblies are additionally arranged on the steering table 11, the roller lifting frame 13 descends before the wood board is steered, the upper section of the longitudinal roller 14 is lower than the upper section of the transverse roller shaft 12, the wood board after transverse cutting is conveyed to the steering table 11 through the longitudinal roller 14, then the roller lifting frame 13 drives the longitudinal roller 14 to lift until the upper section of the longitudinal roller 14 is higher than the upper section of the transverse roller shaft 12, and at the moment, the wood board is separated from the transverse roller shaft 12 and supported by the longitudinal roller 14. Thus, the rolling friction is generated between the wood board and the longitudinal roller 14 in the process of pushing the wood board by the pushing plate device, and the pushing direction of the wood board is consistent.

The second innovation of the present invention is that the leading cutter 24 is disposed right in front of the cutting path of the saw blade 22, so that when the saw blade 22 cuts the board 25, the leading cutter 24 has formed the scribing groove 251 on the lower surface of the board 25 in advance, the sharp leading cutter 24 cuts the board fast, and then the saw blade 22 makes the subsequent cutting along the scribing groove 251.

In summary, the invention changes the sliding friction in the board steering process into rolling friction, greatly reduces the abrasion of friction resistance to the surface of the board, and then forms a scribing groove to prevent the longitudinal edge of the board from being blasted during longitudinal cutting, thereby finally ensuring the flatness of the surface and the side edges of the board and improving the cutting quality.

As shown in fig. 3 and 4, as one embodiment of the present invention, the roller assembly further includes two thin cylinders 15, a roller lifter fixing seat 16 and a guide post 17, wherein the roller lifter fixing seat 16 is fixed on the steering table 11 to provide support for the roller lifter fixing seat 16, and the roller lifter fixing seat 16 can be disassembled and assembled to facilitate maintenance and replacement. Two thin cylinders 15 are separately arranged at two ends of the roller lifting frame 13, the thin cylinders 15 can adopt 40 x 15 specifications, each thin cylinder 15 comprises a cylinder barrel 151 and a piston rod 152, the cylinder barrel 151 is fixed on the steering table 11 through a roller lifting frame fixing seat 16, the piston rod 152 is connected with the roller lifting frame 13, and the piston rod 152 stretches and drives the roller lifting frame 13 to lift. The guide pillar 17 is fixed on the roller lifting frame fixing seat 16, a guide hole 133 for the guide pillar 17 to pass through is arranged in the middle of the roller lifting frame 13, so that the roller lifting frame 13 is equally divided into three sections by the two thin air cylinders 15 and one guide hole 133, and the roller lifting frame 13 is favorable for stable lifting.

As shown in fig. 4, as another embodiment of the roller lifter 13, the roller lifter 13 is provided with a plurality of grooves 131 and a cover 132 covering the grooves 131, the cover 132 is provided with a plurality of through holes 1321 corresponding to the grooves 131, the grooves 131 and the through holes 1321 are arranged in a one-to-one correspondence, each longitudinal roller 14 is correspondingly arranged in one groove 131 and the through holes 1321 are exposed out of the upper section of the longitudinal roller 14, each longitudinal roller 14 is provided with a central shaft passing through both sides of the roller lifter 13 and the longitudinal roller 14, the longitudinal roller 14 rolls on the central shaft, so that only the exposed part of the longitudinal roller 14 from the through holes 1321 is protected by the roller lifter 13 and the cover 132, and wood chips or other sundries can be prevented from being blocked in the longitudinal roller 14.

As shown in fig. 5, as an embodiment of the housing 21 of the present invention, the housing 21 has a mounting main plate 211, a front end plate 212, a mounting side plate 213, and a rear end plate 214, the first rotating shaft 23 is rotatably connected to the mounting main plate 211, and the first rotating shaft 23 and the saw blade 22 are fixedly connected by bolts; the saw blade 22 is located between the mounting main plate 211, the front end plate 212, the mounting side plate 213 and the rear end plate 214, a dismounting hole 2131 is formed on the mounting side plate 213, the dismounting hole 2131 is used for providing an operation space for replacing the saw blade 22, a chip removing hole 2141 is further formed on the rear end plate 214, and the chip removing hole 2141 is connected with an exhaust fan, so that scraps formed by the saw blade 22 are discharged outwards under the action of the exhaust fan.

As shown in fig. 6, in order to facilitate the adjustment of the position of the cutter 24, so that the cutter 24 can be matched with various current practical needs, the precision cutter further includes a cutter head 261, a locking bolt 262, a width adjusting mechanism 263 and a height adjusting mechanism 264, wherein the cutter head 261 is provided with a vertical through hole 2611, the cutter 24 is movably sleeved in the vertical through hole 2611, the width of the cutter 24 is matched with the width of the vertical through hole 2611, the height adjusting mechanism 264 is connected with the bottom of the cutter 24, the locking bolt 262 tightly pushes the cutter 24 against the cutter head 261, and the width adjusting mechanism is arranged on the housing 21 to change the left and right positions of the cutter head 261.

In order to facilitate pushing of the wood board, as shown in fig. 7 and 8, as a preferred embodiment of the push plate device of the present invention, the push plate device includes a push frame 31, a connecting rod 32, a first transmission mechanism 36, a second rotating shaft 33, a second transmission mechanism 37, a bearing 34, a second gear motor 35 and a third transmission mechanism 38, the bearing 34 is sleeved on the second rotating shaft 33, the push frame 31 is used for pushing the wood board, and the second gear motor 35 is arranged on a motor fixing seat.

The first transmission mechanism 36 is disposed below the pushing frame 31, and a connection shaft 364 is fixedly connected below the pushing frame 31. The first transmission mechanism 36 includes a first driving sprocket 361, a first driven sprocket 362, and a first chain 363, the first chain 363 is engaged with the first driving sprocket 361 and the first driven sprocket 362, the first driving sprocket 361 is fixed at one end of the second rotating shaft 33, the second rotating shaft 33 drives the first driving sprocket 361 to rotate, the first driven sprocket 362 is rotatably connected to the connecting shaft 364, the first driving sprocket 361 rotates to drive the first driven sprocket 362, and the first chain 363 rotates around the first driving sprocket 361 and the first driven sprocket 362. The two ends of the connecting rod 32 are respectively and rotatably connected with the pushing frame 31 and the first chain 363, the connecting position of the connecting rod 32 and the first chain 363 moves along with the rotation of the first chain 363, when the connecting position is close to the first driving chain wheel 361, the pushing frame 31 moves in a direction away from the wood board, when the connecting position is far away from the first driving chain wheel 361, the pushing frame 31 moves in a direction close to the wood board, namely, the pushing frame 31 pushes the wood board, and the first chain 363 does not stop the rotation energy to drive the connecting position to reciprocate, so that the wood board is pushed reciprocally.

The second transmission mechanism 37 includes a second driving sprocket 371, a second driven sprocket 372, and a second chain 373, the second chain 373 is engaged with the second driving sprocket 371 and the second driven sprocket 372, the second driving sprocket 371 is fixed on the output shaft of the second gear motor 35, the second gear motor 35 drives the second driving sprocket 371 to rotate, the second driven sprocket 372 is fixedly sleeved on the bearing 34, the second gear motor 35 drives the second driving sprocket 371 to rotate, the second driving sprocket 371 drives the second driven sprocket 372 to rotate through the second chain 373, the second driven sprocket 372 drives the outer ring of the bearing 34 to rotate, the inner ring of the bearing 34 is fixedly connected with the second rotating shaft 33, that is, the second driven sprocket 372 rotates and does not directly drive the second rotating shaft 33 to rotate.

The third transmission mechanism 38 includes a first friction plate 381, a second friction plate 382, a third friction plate 383, a spring 384 and a lock nut 385, the lock nut 385 is spirally disposed at the other end of the second rotating shaft, the first friction plate 381 is fixedly connected with the second driven sprocket 372, the first friction plate 381 is rotatably sleeved on the second rotating shaft 33, the second friction plate 382 is rotatably sleeved on the second rotating shaft 33, the third friction plate 383 is fixedly connected with the second rotating shaft 33, the first friction plate 381, the second friction plate 382 and the third friction plate 383 are sequentially propped against and disposed between the second driven sprocket 372 and the lock nut 385, two ends of the spring 384 are respectively connected with the third friction plate 383 and the lock nut 385, and the pressure of the three friction plates against each other can be controlled by adjusting the lock nut 385, so that the friction force of the three friction plates is controlled.

With the above structure, the operation process of the present invention is that the second gear motor 35 drives the second driving sprocket 371 to rotate, the second driving sprocket 371 drives the second driven sprocket 372 to rotate on the bearing 34 through the second chain 373, the second driven sprocket 372 rotates to drive the first friction plate 381 to rotate, the first friction plate 381 drives the second friction plate 382 to rotate through friction force, the second friction plate 382 drives the third friction plate 383 to rotate through friction force, the third friction plate 383 drives the second rotating shaft 33 to rotate, the second rotating shaft 33 rotates to drive the first driving sprocket 361 to rotate, and the first driving sprocket 361 drives the second driven sprocket 372 to rotate through the first chain 363, finally the connecting rod 32 horizontally realizes the reciprocating movement under the rotation of the first chain 363.

Compared with the prior art, the second gear motor 35 of the invention is still driving force, but does not directly drive the pushing frame 31 to move, the first transmission mechanism 36 is driven to move by driving the pushing frame 31, namely the blocked force of the pushing plate controls the load torque of the first transmission mechanism 36, the second gear motor 35 directly drives the second transmission mechanism 37 to operate, then the second transmission mechanism drives the first transmission mechanism to rotate through the third transmission mechanism, in particular the second driven sprocket 372 rotates and drives the third friction plate 383 to synchronously rotate through friction transmission, the third friction plate 383 drives the second rotating shaft 33 to rotate, the second rotating shaft 33 finally drives the first transmission mechanism 36 to operate, therefore, the first driving sprocket 361 can only rotate when the load torque of the first transmission mechanism 36 is smaller than or equal to the output torque of the third friction plate 383, because the friction force is limited, specifically, by screwing the nuts to control, the pressure of the three friction plates is large, the friction force is large, the pressure is small, the friction force is small, therefore, the output torque of the third friction plate 383 is also limited, when the blocking phenomenon occurs on the wood board, the first driving sprocket 361 is stopped because the load torque is greatly increased and exceeds the output torque of the third friction plate 383, at the moment, the second driven sprocket 372 bearing 34 still continues to rotate and drives the first friction plate 381 to rotate on the second rotating shaft 33 relative to the second friction plate 382 and the third friction plate 383, namely, the load torque received by the second speed reducing motor 35 is directly influenced by the friction force, the stable load torque can keep the second speed reducing motor 35 to continuously rotate, the blocking phenomenon is avoided, and the protection effect is achieved.

In order to make the pushing frame 31 stably move, preferably, the pushing plate device further includes a guide shaft 391 and a plurality of sliding seats 392, wherein the sliding seats 392 are symmetrically connected to two ends of the pushing frame 31, each sliding seat 392 passes through the guide shaft 391 and slides on the guide shaft 391, and the sliding seats 392 and the guide shafts 391 cooperate to provide guiding function for the pushing frame 31.

The cutting process is performed by saw blades of the transverse cutting unit and the longitudinal cutting unit, so that in order to meet the specification requirements of different boards, as still another preferred embodiment of the present invention, as shown in fig. 9 to 11, the transverse cutting unit and the longitudinal cutting unit each comprise a sawing device, which comprises a main frame 41, and a movable sawing mechanism 42 and a fixed sawing mechanism 43 respectively arranged at the left and right ends of the main frame 41.

The fixed sawing mechanism 43 comprises a fixed seat 435, a first saw blade 431, a first motor 433, a first rotating shaft 432 and a first synchronous belt 434, wherein the first motor 433 is fixedly connected with the main frame 41, the first motor 433 is connected with one end of the first rotating shaft 432 through the first synchronous belt 434, the other end of the first rotating shaft 432 is connected with the first saw blade 431, the fixed seat 435 is fixedly connected with the main frame 41 and is kept motionless, and the first rotating shaft 432 and the first saw blade 431 are arranged on the fixed seat 435. Specifically, a driving wheel 45 is disposed at one end of the first motor 433, a driven wheel 46 is disposed at one end of the first rotating shaft 432, the driving wheel 45 and the driven wheel 46 are in transmission connection through a first synchronous belt 434, and the first motor 433 drives the first saw blade 431 to rotate through transmission of the synchronous belt.

The movable sawing mechanism 42 comprises a sliding seat 4212, a second saw blade 4201, a second motor 4203, a second rotating shaft 4202, a second synchronous belt 4204, a first speed reduction motor 4205, a driving sprocket 4206, a driven sprocket 4207, a synchronous chain 4208, an adjusting screw 429, a screw nut seat (not shown), a guide rail slide 4210 and two linear guides 4211, wherein the first speed reduction motor 4205 is fixedly arranged on the main frame 41 and is opposite to the fixed seat 435 in the longitudinal direction or the transverse direction, the driving sprocket 4206 is connected to the output shaft of the first speed reduction motor 4205, the driven sprocket 4207 is connected to one end of the adjusting screw 4209, the driving sprocket 4206 and the driven sprocket 4207 are in meshed connection through the synchronous chain 4208, the movable sawing mechanism 42 further comprises a slide rail base 4213, the slide rail base 4213 is arranged on the left side of the main frame 4241, the slide rail base 4213 is provided with two linear guides 4211 in a matched manner, the two linear guides 4211 are arranged on the main frame 4241 in a longitudinal direction or a transverse direction, the adjusting screw 429 is arranged between the two linear guides 4211 in a longitudinal direction or a transverse direction extending manner, and the two linear guides 4211 are arranged between the two linear guides 4211 in a sliding nut seat 4212 and a sliding nut seat 4212 is arranged on the slide seat 4212 and is in a sliding manner, and the slide nut seat 4212 is arranged on the slide rail base 4212 is in a sliding seat 4212 is arranged on the slide rail, and is in a sliding seat 4213.

The second motor 4203 and the second rotating shaft 4202 are both disposed on the sliding base 4212, the second motor 4203 is connected to one end of the second rotating shaft 4202 through a second synchronous belt 4204, the other end of the second rotating shaft 4202 is connected to the second saw blade 4201, specifically, one end of the second motor 4203 is provided with a driving wheel 45, one end of the first rotating shaft 432 is provided with a driven wheel 46, the driving wheel 45 and the driven wheel 46 are connected by a second synchronous belt 4204, and the second motor 4203 drives the second saw blade 4201 to rotate through a synchronous belt. The second saw blade 4201 and the first saw blade 431 are at the same level, and thus, synchronous cutting of both edges of the plate material in the transverse direction or both edges in the longitudinal direction can be achieved.

As shown in fig. 10, the accelerating and conveying unit for plate material comprises an accelerating fixed frame 51 and an accelerating movable frame 52 which are arranged in parallel along the longitudinal direction, two groups of conveying belt 58 assemblies respectively arranged on the accelerating fixed frame 51 and the accelerating movable frame 52, the conveying belt 58 assemblies are used for conveying plate material, and an adjusting mechanism for driving the accelerating movable frame 52 to move relative to the accelerating fixed frame 51 so as to change the distance between the accelerating fixed frame 51 and the accelerating movable frame 52.

The adjusting mechanism comprises a sliding rail 53 and a pushing frame air cylinder 54, the sliding rail 53 longitudinally extends from the accelerating fixing frame 51, the accelerating movable frame 52 is slidably mounted on the sliding rail 53, the pushing frame air cylinder 54 is fixedly mounted on the accelerating fixing frame 51, and a piston rod of the pushing frame air cylinder 54 is fixedly connected with the accelerating movable frame 52 to drive the accelerating movable frame 52 to slide on the sliding rail 53.

Thus, one of the innovative points of the present invention is that there are a first saw blade 431 that is kept stationary and a second saw blade 4201 that is opposite to the first saw blade 431 in the lateral direction or in the longitudinal direction by adjusting the cooperation of the screw rod 4209 and the screw nut seat, and because both lateral edges or both longitudinal edges of the plate material are cut simultaneously by the first saw blade 431 and the second saw blade 4201 during the cutting process, the width and the length of the cut plate material can be adjusted by adjusting the spacing between the first saw blade 431 and the second saw blade 4201, so that the present invention can process plate material with different specifications according to practical requirements.

The second innovation point is that the plate after transverse cutting of the plate transverse conveying unit is conveyed to the plate accelerating conveying unit, two sides of the plate in the transverse direction are respectively supported by conveying belt 58 assemblies on the accelerating fixed frame 51 and the accelerating movable frame 52 to realize plate conveying, the accelerating movable frame 52 can move longitudinally relative to the accelerating fixed frame 51 under pushing and pulling of the pushing and pulling frame air cylinder 54, the distance between the accelerating fixed frame 51 and the accelerating movable frame 52 is at most capable of supporting the plate with the maximum width cut by the transverse plate conveying unit, and after the width of the plate is gradually reduced, the distance between the accelerating fixed frame 51 and the accelerating movable frame 52 is adaptively reduced to be capable of conveying.

In summary, the two innovation points can be adaptively adjusted according to the widths of the plates in the cutting and conveying steps, so that the plates with different widths can be cut and simultaneously the plates with different widths can be conveyed, the occupied space is saved due to the reduction of equipment, and the effects of reducing equipment investment and equipment maintenance investment are achieved. In addition, the edge width of the plate is controlled by the distance between the first saw blade 431 and the second saw blade 4201, so that the edge width of the plate can be ensured to be consistent even if the plate is placed with a certain deviation, and the cutting quality of the plate is improved.

Preferably, the adjusting screw 4209 is provided with a position display 44 on the left side of the driven sprocket 4207, so that the feeding amount of the adjusting screw 4209 can be more intuitively and accurately checked.

More preferably, the upper tangent points of the first saw blade 431 and the second saw blade 4201 are the points of force for sawing the wood board, the fixed sawing mechanism 43 and the movable sawing mechanism 42 further comprise a communicated saw blade cover 436, the saw blade cover 436 is covered on the points of force of the first saw blade 431 and the second saw blade 4201, and the saw blade cover 436 is communicated with an exhaust tube 437. When cutting is performed, a large amount of dust and wood chips are extracted through the extraction pipe 437, and the effect of discharging the waste wood chips is achieved.

Preferably, the two sets of adjusting mechanisms are arranged between the acceleration fixing frame 51 and the lateral front side of the acceleration movable frame 52 and between the acceleration fixing frame 51 and the lateral rear side of the acceleration movable frame 52, and the two sets of pushing frame cylinders 54 are controlled by the same controller to ensure synchronous action and play a role in parallel adjusting the distance between the acceleration fixing frame 51 and the acceleration movable frame 52.

More preferably, the conveyor belt 58 assembly includes a driving motor 55, a first driving pulley 57, a first driven pulley and a conveyor belt 58, wherein the first driving pulley 57 and the first driven pulley are rotatably mounted on the acceleration fixing frame 51 and the acceleration moving frame 52 through bearings, the driving motor 55 is fixedly mounted on the acceleration fixing frame 51 and the acceleration moving frame 52, a motor shaft of the driving motor 55 is in transmission connection with the first driving pulley 57 through a chain transmission mechanism 56, and the first driving pulley 57 is in transmission connection with the first driven pulley through the conveyor belt 58. The sheet is placed on a conveyor belt 58 which rotates to transport the sheet.

Preferably, the accelerating movable frame 52 is provided with a pulley block 59 for driving the accelerating movable frame 52 to walk on the sliding rail 53, so that the accelerating movable frame 52 slides more smoothly.

More preferably, as shown in fig. 11, a locking assembly for locking the sliding of the sliding pulley set 59 is disposed between the pulley set 59 and the sliding rail 53, where the locking assembly includes a plurality of pin holes 5901 annularly disposed on the pulley set 59, a locking slot 5301 disposed on the sliding rail 53, and a locking pin sequentially passing through the pin holes 5901 and the locking slot 5301 for locking the sliding pulley set 59, and after the accelerating movable frame 52 moves to a desired position, the pulley set 59 is locked and fixed by the locking pin, so that the conveying process is more stable.

As still another preferred embodiment of the present invention, as shown in fig. 14 to 19, the automatic board feeding unit includes a board feeding device including a material placing rack 66 for placing boards 62 to be processed, a material feeding rack 613 for conveying boards 62, and a board feeding mechanism for conveying boards 62 to be processed on the material placing rack 66 onto the material feeding rack 613, the board feeding mechanism being provided on the material placing rack 66, the material feeding rack 613 being provided at one side of the material placing rack 66;

the plate feeding mechanism comprises a suction nozzle assembly 64 for lifting one side of the plate 62 back to the feeding frame 613 upwards, a hook plate assembly 63 for hooking one side of the plate 62 lifted by the suction nozzle assembly 64, and a plate feeding assembly for driving the hook plate assembly 63 to move towards the feeding frame 613 so as to push the plate 62 onto the feeding frame 613.

The plate carrying and conveying unit comprises a positioning stacker and a trolley assembly. The device comprises a frame 71 and a blocking arm 72, wherein the right end of the blocking arm 72 is connected with the right front end of the frame 71, the device further comprises an oil cylinder 73, the telescopic end of the oil cylinder 73 is hinged with the middle part of the blocking arm 72, and the fixed end of the oil cylinder 73 is hinged on the frame 71; the right end of the blocking arm 72 is hinged to the right front end of the frame 71, and the left end of the blocking arm 72 is provided with a longitudinal stop 721, and the longitudinal stop 721 extends out of the frame 71 toward the left end of the frame 71. The rotation of the baffle arm 72 is controlled by the oil cylinder 73, when the boards are required to be stacked in a limiting mode, the baffle arm is automatically put down by the control oil cylinder 73, and when the boards are required to be carried, the baffle arm is automatically lifted by the control oil cylinder 73, so that the automation of the board stacking limiting is realized, and the stacking and transporting efficiency is greatly improved.

The trolley assembly comprises a hydraulic station 81, a small plate trolley 82, a trolley track 83, a hydraulic oil cylinder 84, a hydraulic motor 85, a hydraulic oil pipe 86 and a roller assembly 87, wherein the hydraulic station 81 is connected with the hydraulic oil cylinder 84, the hydraulic station 81 is connected with the hydraulic motor 85 by the hydraulic oil pipe 86, the roller assembly 87 has more than 3 columns, the trolley track 83 has more than 2 columns, and the trolley track 83 is arranged between the roller assemblies 87 of two adjacent columns; the small plate carriage 82 comprises a travelling wheel 821, a transportation frame 822 and a lifting plate 823, the travelling wheel 821 is arranged at the bottom of the transportation frame 822 and moves along the carriage rail 83, the lifting plate 823 is arranged at the upper part of the transportation frame 822, and the hydraulic cylinder 84 is arranged in the transportation frame 822 and controls the lifting plate 823 to ascend and descend; the hydraulic motor 85 drives the small plate carriage 82 to move back and forth through sprocket transmission. When the boards are stacked, the telescopic ends of the hydraulic cylinders 8423 are shortened, the height of the lifting plate 823 is lowered to be lower than the upper surface of the roller assembly 87, and the boards are stacked on the roller assembly 87; when the wood board stacks are transported, the telescopic ends of the hydraulic cylinders 84 are extended, the height of the lifting plate 823 is higher than that of the roller assembly 87, the wood board stacks are separated from the roller assembly 87, the wood board stacks are removed under the driving of chain wheels, and after the wood board stacks are dismounted, the wood board stacks return to the original station and continue to work in the next round. Through hydraulic transmission and sprocket transmission, the automation of plank pile transport has been realized, the efficiency of transportation has been improved greatly, has practiced thrift the cost of labor.

The feeding frame 613 is connected with a transverse plate conveying unit, the conveying frame 822 is connected with a longitudinal plate conveying unit, and two positioning stacker units are arranged on two sides of the conveying frame 822. In this way, the plate to be processed is firstly prevented from being placed on the material placing frame 66, a single plate is adsorbed through the suction nozzle assembly 64 and is pushed to the material feeding frame 613 in cooperation with the plate feeding assembly during plate feeding, and finally the plate is conveyed to the transverse plate conveying unit from the material feeding frame 613, after being processed, the plate is regularly placed on the lifting plate 823 on the conveying frame 822 through the two positioning and stacking devices to form a plate stack, and finally the plate is conveyed away through the carriage assembly.

Compared with the prior art, the automatic plate feeding device has the advantages that automatic operation is adopted for feeding plates before cutting or discharging plates after cutting, the automatic plate feeding device is safer, the automatic plate feeding unit and the plate conveying unit are respectively the start and the stop of the whole production line, the speed of the automatic plate feeding unit and the plate conveying unit is improved, the cutting speed in the production line can be improved and adjusted, and the processing efficiency of the whole production line is further improved.

As shown in fig. 12 and 13, as a preferred embodiment of the feeding device of the present invention, the hook plate assembly 63 is reciprocally moved; the feeding plate assembly comprises a third gear motor 610, a driving belt pulley 69, a driven belt pulley and a synchronous belt 67, the third gear motor 610 is fixedly arranged on the feeding frame 66, a motor shaft of the third gear motor 610 is in transmission connection with the driving belt pulley 69, the driving belt pulley 69 is in transmission connection with the driven belt pulley through the synchronous belt 67, and the hooking plate assembly 63 is fixedly arranged on the synchronous belt 67 and moves back and forth along with the synchronous belt 67.

In the present embodiment, in order to guide the movement of the hook plate assembly 63; the material placing frame 66 is also provided with a linear guide rail 68, the hook plate assembly 63 is slidably mounted on the linear guide rail 68 and driven by a synchronous belt 67 to reciprocate along the linear guide rail 68, and two proximity switches 65 for sensing the approach of the hook plate assembly 63 are respectively arranged at two ends of the linear guide rail 68.

In this embodiment, in order to pick up the sheet 62; the hook plate assembly 63 comprises a hook plate frame 6301 and a hook plate 6302, the hook plate frame 6301 is fixedly installed on the synchronous belt 67 and is slidably installed with the linear guide rail 68, the hook plate 6302 is provided with a U-shaped opening, the U-shaped opening of the hook plate 6302 is arranged towards one side of the feeding frame 613 so as to hook into a plate, and an inclined plane 6303 used for guiding the plate to enter the U-shaped opening is arranged on the upper portion of the hook plate 6302.

Wherein, in order to suck one end of the plate 62 to drive the plate to lift upwards; the suction nozzle assembly 64 includes a vacuum suction nozzle, a vacuum extractor connected to the vacuum suction nozzle, and a lifting cylinder for driving the vacuum suction nozzle to move up and down to lift the plate, the lifting cylinder is fixedly mounted on the material mounting frame 66, and the vacuum suction nozzle is fixedly connected to a cylinder rod of the lifting cylinder.

Wherein, in order to adjust the height of the plate 62, the vacuum suction nozzle is convenient to absorb the plate and the plate feeding component is convenient to feed the plate 62 to the feeding frame 613; the automatic plate feeding machine of the precise vertical and horizontal saw bench further comprises a lifter 61, and the material placing frame 66 is arranged on the lifter 61.

Wherein the sheet 62 is automatically conveyed for processing in the next process; the feeding frame 613 is provided with a plurality of feeding rollers 611, the feeding rollers 611 are rotatably mounted on the feeding frame 613 through bearings, the axial line direction of the feeding rollers 611 is perpendicular to the moving direction of the feeding plate assembly, and the feeding frame 613 is provided with a feeding motor 612 for driving the feeding rollers 611 to rotate.

Thus, the plate feeding device performs the following steps: the vacuum suction nozzle adsorbs one end of the plate 62, the plate 62 is driven by the lifting cylinder to lift upwards by 100mm, the plate 62 is released again after a delay of 0.3S under the control of the PLC, in the 0.3S time, the third gear motor 610 is started, the synchronous belt 67 is driven to move to drive the hook plate assembly 63 to move to one side of the feeding frame 613, one side of the plate 62 is inserted into the U-shaped opening of the hook plate 6302 to receive the plate 62, the synchronous belt 67 continues to drive the hook plate assembly 63 to move to one side of the feeding frame 613, the plate 62 is pushed onto the feeding roller 611 of the feeding frame 613, when the hook plate assembly 63 moves to the position of the proximity switch 65, the proximity switch 65 senses that an object is close, a signal is sent, the third gear motor 610 stops working and reversely rotates, the hook plate assembly 63 is driven to return to the initial position, the next action cycle is started, the feeding motor 612 starts working, the feeding roller 611 is driven to rotate, and the plate 62 is conveyed, and automatic feeding of the plate 62 is realized.

As shown in fig. 14 to 16, as a preferred embodiment of the positioning stacker of the present invention, the longitudinal stopper 721 includes a blocking rod 7211 and a fixing rod 7212, the blocking rod 7211 is connected to the fixing rod 7212 in a T-shape, the blocking rod 7211 is vertically disposed, the fixing rod 7212 is provided with a screw structure, the left end of the blocking arm 72 is correspondingly provided with a fixing plate 722 having a through hole, the fixing rod 7212 passes through the through hole of the fixing plate 722 and is fixed by a nut, and the longitudinal stopper 721 can adjust the front and rear of the blocking rod 7211 by the cooperation of the nut and the bolt, thereby being capable of adapting to boards of different sizes.

The left rear end of the frame 71 is further provided with a transverse stop block 74, the transverse stop block 74 comprises a baffle 741 and a fixing plate 742, the baffle 741 is fixed on the frame 71 through the fixing plate 742, and the transverse stop block 74 can limit the length direction of the wood board.

Wherein, the catch arm 72 is provided with a hook 723 thereon, the right end of the frame 71 is correspondingly provided with a safety chain, and when the catch arm 72 is lifted, the catch arm 72 with the hook 723 is pulled by the safety chain 75, thereby ensuring the safety of workers when transporting the wood board.

The number of the blocking arms 72 is 1-2, and a plurality of blocking arms 72 are arranged to limit and stack wood boards with more sizes.

As shown in fig. 17-19, as a preferred embodiment of the carriage assembly of the present invention, the number of the roller assemblies 87 is 3 columns, and the number of the carriage rails 83 is 2 columns.

The hydraulic oil pipe 86 is mounted on the drag chain 88, and the rail wheel is mounted at the lower part of the drag chain 88, so that the hydraulic oil pipe 86 can be better protected, the hydraulic oil pipe 86 cannot be disturbed when the small plate carriage 82 moves, and the service life of the hydraulic oil pipe 86 can be guaranteed.

Wherein, the roller assembly 87 comprises a roller 871 and a transmission device 872, and the transmission device 872 drives the roller 871 to roll; the transmission device 872 includes a sprocket 8721 and a chain 8722, the sprocket 8721 is connected to the roller 871, and the chain 8722 rotates the roller 871 through the sprocket 8721.

The transportation frame 822 comprises an oil cylinder fixing seat 8221, a connecting rod 7222 and a connecting rod fixing seat 8223, wherein the fixed end of the hydraulic oil cylinder 84 is hinged with the oil cylinder fixing seat 8221, the telescopic end of the hydraulic oil cylinder 84 is hinged with the connecting rod 7222, and the connecting rod 7222 is hinged with the fixed end of the connecting rod 7222.

The board discharging stop block 89 is arranged in a right triangle, the board discharging stop block 89 is arranged at the tail end of the queue of the roller assembly 87, the height of the board discharging stop block 89 is higher than that of the roller assembly 87, the board discharging stop block 89 can prevent boards from limiting when being stacked, and the boards are prevented from falling to the ground along with the rotation of the roller 871.

The above examples and drawings are not intended to limit the form or form of the present invention, and any suitable variations or modifications thereof by those skilled in the art should be construed as not departing from the scope of the present invention.

Claims (7)

1. The non-damage high-quality plate processing production line is characterized by comprising an automatic plate feeding unit, a plate transverse conveying unit, a plate transverse cutting unit, a plate accelerating conveying unit, a steering conveying unit, a plate longitudinal cutting unit, a plate longitudinal conveying unit and a plate conveying unit, wherein the automatic plate feeding unit, the plate transverse conveying unit, the plate transverse cutting unit and the plate accelerating conveying unit are sequentially connected to form a transverse cutting path, the plate longitudinal cutting unit, the plate longitudinal conveying unit and the plate conveying unit are sequentially connected to form a longitudinal cutting path, the longitudinal cutting path and the transverse cutting path are vertically arranged, and the steering conveying unit is arranged in an intersection area of the longitudinal cutting path and the transverse cutting path;

the steering conveying unit is provided with a steering table, a plurality of transverse roller shafts are arranged on the steering table at intervals along the transverse direction, at least two roller assemblies are arranged between the two transverse roller shafts, each roller assembly comprises a roller lifting frame and a plurality of longitudinal rollers longitudinally arranged on the roller lifting frame, the roller lifting frame is switched between a lifting state and a descending state, the horizontal height of a section on the longitudinal rollers is higher than that of the section on the transverse roller shafts in the lifting state, and the horizontal height of the section on the longitudinal rollers is lower than that of the section on the transverse roller shafts in the descending state;

The longitudinal cutting unit of the plate comprises a cutter, a saw blade, a first rotating shaft and a leading cutter, wherein the cutter comprises a shell, the saw blade is fixedly connected to the first rotating shaft, the first rotating shaft is rotatably connected to the shell and is connected with a cutting motor, and the leading cutter is arranged on the shell and is positioned right in front of a cutting path of the saw blade so as to form a scribing groove on the lower plane of the wood before the saw blade cuts the wood; the shell is provided with a mounting main board, a front end board, a mounting side board and a rear end board, the first rotating shaft is rotatably connected to the mounting main board, the saw blade is positioned among the mounting main board, the front end board, the mounting side board and the rear end board, a dismounting hole is formed in the mounting side board, a chip removal hole is formed in the rear end board, and the chip removal hole is connected with the exhaust fan;

the cutter further comprises a front cutter seat, a locking bolt, a width adjusting mechanism and a height adjusting mechanism, wherein a vertical through hole is formed in the front cutter seat, the front cutter is movably sleeved in the vertical through hole, the width of the front cutter is matched with the width of the vertical through hole, the height adjusting mechanism is connected with the bottom of the front cutter, the locking bolt tightly abuts the front cutter on the front cutter seat, and the width adjusting mechanism is arranged on the shell to change the left and right positions of the front cutter seat.

2. The line for processing sheet material of high quality without damage according to claim 1, wherein each roller assembly further comprises two thin type cylinders respectively arranged at both ends of the roller lifter, each thin type cylinder comprising a cylinder tube and a piston rod, the cylinder tube being fixed on the steering table, the piston rod being connected with the roller lifter.

3. The line for processing sheet materials of claim 2 wherein each roller assembly further comprises a roller lift holder and a guide post, the roller lift holder being fixed to the steering table, the cylinder and the guide post being fixed to the roller lift holder, the roller lift having a guide hole in the middle for the guide post to pass through.

4. The line for processing high-quality sheet materials without damage according to claim 1, wherein the roller lifter is provided with a plurality of grooves and a cover covering the grooves, a plurality of through holes are formed in the cover corresponding to the grooves, each longitudinal roller is correspondingly arranged in one groove in a rotating mode, and the upper section of the longitudinal roller is exposed out of the through holes.

5. A non-destructive high quality board processing line according to claim 1, wherein said score line has a depth of 0.2-0.5mm and a width of 0.1-0.2mm.

6. The line for processing high-quality sheet materials without damage according to claim 1, wherein the steering and conveying unit further comprises a pushing plate device, the pushing plate device comprises a pushing frame, a connecting rod, a first transmission mechanism, a second rotating shaft, a second transmission mechanism, a bearing, a second gear motor and a third transmission mechanism, and the bearing is sleeved on the second rotating shaft;

the first transmission mechanism comprises a first driving sprocket, a first driven sprocket and a first chain, the first chain is meshed with the first driving sprocket and the first driven sprocket, two ends of the connecting rod are respectively connected with the pushing frame and the first chain in a rotating way, and the first driving sprocket is fixed at one end of the second rotating shaft;

the second transmission mechanism comprises a second driving sprocket, a second driven sprocket and a second chain, the second chain is meshed with the second driving sprocket and the second driven sprocket, the second driving sprocket is fixed on an output shaft of the second speed reduction motor, and the second driven sprocket is fixedly sleeved on the bearing;

the third transmission mechanism comprises a first friction plate, a second friction plate, a third friction plate, a spring and a lock nut, wherein the lock nut is arranged at the other end of the second rotating shaft, the first friction plate is fixedly connected with the second driven sprocket and is rotationally sleeved on the second rotating shaft, the second friction plate is rotationally sleeved on the second rotating shaft, the third friction plate is fixedly connected with the second rotating shaft, the first friction plate, the second friction plate and the third friction plate are sequentially propped against and arranged between the second driven sprocket and the lock nut, and two ends of the spring are respectively connected with the third friction plate and the lock nut.

7. The line for processing sheet materials of high quality without damage according to claim 6, further comprising a guide shaft and a plurality of sliding seats symmetrically connected to both ends of the pushing frame, each sliding seat passing through the guide shaft and sliding on the guide shaft.

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