SI21917A - Flying circular saw for high-speed continuous transverse cutting of extremely long wooden workpieces - Google Patents

Abstract

The flying circular saw for high-speed continuous transverse cutting of extremely long wooden workpieces is preferentially aimed at representing a final processing unit as part of the complete line for the manufacture, pressing and gluing of longitudinal wooden workpieces featuring geared joints for the purpose of cutting such workpieces (9) into shorter ones of any length at high travelling speeds. The processing unit (6) featuring a circular saw blade (17) is via an intermediate transverse chariot (16) flexibly attached to the longitudinal chariot (13), which is clamped to the workpiece (9) and travels at high speed along the workbench (2) with it. On this way the circular saw blade (17) is guided by a guiding groove (5) of meandering type, which from point (A) through points (B, C, D and E) to (F) defines the individual process phases and their corresponding duration. The process of transverse cutting of extremely long workpieces (9) into shorter ones is continuously and cyclically repeated in the direction from point (A) to point (F) and back to the starting point (A) as long as the extremely long workpiece (9) have not been completely cut into shorter ones.

Description

Flying Circular Saw for Continuous Cross Cutting of Extremely Long Woodworkers at High Speed

The object of the invention is a flying circular saw for continuous transverse cutting of extremely long wood workpieces at high travel speed, or more specifically, a circular saw with a traveling processing unit with a circular saw blade, which is guided in a guide channel and which is a workpiece of extreme length passing through a saw travels at high speed, accompanied at the same speed, the workpiece being clamped in a clamping unit, which, together with the workpiece unit, is integrated into the traveling saw assembly, with the flying saw being generally mounted behind a press for the front joining and gluing of elongated workpieces with toothed front joints, which also works continuously, at high speed joint workpieces.

According to the international patent classification, the invention is envisaged to be classified in B 27B 5/29, B 27B 29/02 and additionally in B 27B 5/18.

A technical problem solved by the invention is such a design of a chainsaw for continuous cross-cutting, which will allow the circular saw to travel with extremely long workpieces at the same high speed while being guided by special guide channel. This will allow continuous cutting of extremely long elongated workpieces into any shorter pieces at a high traveling speed, without stopping them. On the path through the saw, the workpieces of extreme length will be guided and clamped in the appropriate unit, and the construction of the saw will be simple, compact and stable. It will be useful, preferably, in the assembly of machining lines for making toothed joints and for joining shorter elongated workpieces into workpieces of extreme lengths by means of toothed joints. As a rule, it will be installed at the end of these machining lines, intended for the transverse cutting of such extremely long workpieces into shorter pieces of any length.

There are two basic design solutions for mechanical chainsaws for the cross-cutting of longer elongated workpieces into shorter pieces. According to the first known concept, workpieces travel through the saw in a tactical manner, ie by stopping the workpiece in the sawing phase. According to another known concept, long workpieces travel through the saw without stopping in the sawing phase, but at a very low travel speed.

Known solutions according to the first design concept are characterized by the fact that the saws are designed in a tactile manner in which long and elongated workpieces stop at a fixed circular or band saw blade on a pre-set length of a shorter piece of workpiece. A clamping device is also fixed to the saw frame, which compresses and clamps the workpiece before sawing. The saw blade is then activated, which cuts the long workpiece transversely into a shorter piece, which is repeated until the workpiece is cut into shorter pieces. If the stroke saw has a circular saw blade in only one direction, then only a stroke saw with a band saw blade cuts in both directions. After each cross-cutting, the workpiece is released by the workpiece, and the workpiece is moved forward for a certain length of time and the workpiece is stopped again, the clamping and sawing process is repeated. In the described tactile manner, the cross-cutting of long workpieces is intermittently repeated. This well-known solution is impractical as it is only applicable to low travel speeds of long workpieces, which, together with multiple shutdowns of workpieces, greatly prolongs the work operation. Stopping workpieces along a saw blade can be very common, and is accompanied by time-consuming clamping and loosening of the workpiece. This well-known solution is therefore only suitable for the cross-cutting of a smaller number of long workpieces into shorter pieces. One of the well-known solutions for the long-range workpiece for cutting long workpieces is DE 42 40 636 and is located just behind the press, which also operates on the clock principle.

Known solutions to another known concept are typically based on the continuous, therefore continuous travel of long, elongated workpieces through a circular or band saw, without stopping at the saw blade. The construction of the saw according to this known solution is such that the trolley with a saw blade is positioned below the workpiece and also travels in a straight line below it. At the same time the workpiece does not have any support or bearing surface on which to glide, so optimum stability in machining is not guaranteed. When the workpiece travels against the saw blade, it is fastened to it and jammed with the saw blade cart and continues to travel together. In this known manner, the saw blade trolley is attached to the workpiece at the point that determines the sawing location, and thus the desired length of the cut, shorter piece of workpiece. It is therefore considered that the saw blade cuts the workpiece transversely into shorter pieces, the length of which is determined by the length of the workpiece's path through the saw. The saw-blade trolley is opened and separated from the workpiece after the cross-section has been completed, and then returns to its starting position with its own drive. In this way, the sawing process is repeated cyclically. The disadvantage and disadvantage of this known solution lies in the fact that it is useful for lower traveling speeds of the workpiece, the workpiece is not stable, the clamping device is demanding. Also complicated and complex are the machine and the procedure for adjusting the saw before cross-cutting. The solution for such a continuous cross-cutting saw is known from document DE 101 11 326 and document EP 1 262 290 and is preferably intended for the cross-cutting of panels of any material at a certain distance.

A common feature of the known solutions described is the manner and direction of movement of the circular saw blade, which moves up and down in tact mode, ie up and down, while in continuous sawing mode, the saw blade also moves in the longitudinal direction of the elongated workpiece, ie except down and up and back and forth. The variants are mainly in the method of fastening long workpieces, or fastening the cart with a circular saw blade to the workpiece, and in performing the movement and guiding the workpiece unit in the direction of workpiece movement. The problem that has remained unsolved is in particular the complex and demanding implementation of the mechanisms for controlling and controlling the circular saw blade processing unit, the further device for fastening the trolley with the machining unit to the workpiece, as well as the design and guidance of the circular saw blade in the direction of the workpiece movement, and after the cross cut is completed back to the starting position. A problem that remains unresolved is also how to allow the very long workpieces to be cut crosswise at very high travel speeds, both the workpiece and the machining units attached to it.

According to the invention, the problem is solved by a flying circular saw for continuous transverse cutting of extremely long workpieces at high speed, with a transverse trolley mounted on a longitudinal trolley with a processing unit, in which the processing unit with a circular saw blade is guided by a guide wheel in the guide channel, The nozzle is operated by the inlet flap and the clamping unit, both with their respective drives, to guide and clamp the workpiece. The invention will be described in the preferred embodiment and in the drawings showing:

FIG. 1 is a circular saw according to the invention; 2 in the same way as in FIG. 1, only in the plan of FIG. 3 is a cross-sectional view of a saw in the region of the clamping unit of FIG. 4 the same as in FIG. 2, only in the area of the inlet flap, work unit and clamping unit of FIG. 5 shows an inlet flap, a clamping unit and a front-end work unit; 6 is a front view of the clamping unit of FIG. 7 is a schematic view of the continuous operation of a flying circular saw according to the invention

The flying circular saw for continuous cross-cutting of extremely long wood workpieces consists of a housing 1 with a workbench 2 and a guide channel 5, further an assembly of the inlet flap 20, a clamping unit 28 and a workpiece assembly 6 with a saw blade 17, which, together with a cross carriage 16, movably mounted on a longitudinal trolley 13, which travels perpendicularly along the side guides 3 along the work table 2, the machining unit 6 being guided by a guide wheel 11 positioned inside the guide channel 5. The machining unit 6, incl. a longitudinal trolley 13 and a transverse trolley 16, located at or above the workbench 2, along which the workpiece 9 slides. The transverse trolley 16 is cross-mounted on the longitudinal trolley 13 such that their longitudinal center axes intersect preferably at 90 °.

The construction of the housing 1 is static and is made of arbitrary, mechanically related metal profiles. A horizontal workbench 2 is fixed to the housing 1 in length, which is flanked by two parallel side guides 3 on each side. The workbench 2 is preferably an elongated embodiment with a flat face. A slanting groove 50 is formed on a portion of the front face of the workbench 2, the shape of which is identical to the shape of the guide channel 5, which is above it, within its segment between the points C and D of the diagram in FIG. 7. The cross-section of the sloping groove 50 may be optional, which also applies to the cross-section of the guide channel 5. At the beginning of the work table 2, a measuring wheel 49 of any, preferably rotary or otherwise movable, version is mounted.

On both sides of the housing 1, vertical supports 4 are spaced at a distance, to which a guide channel 5 is fixed, which runs parallel to the workbench 2 and preferably slightly above the work unit 6. In another embodiment, the guide channel 5 may be above, or next to the processing unit 6, also installed differently. The leading channel 5 along the longitudinal axis of the preferentially serpentine shape with two opposite turns of the "S" shape, while in the cross section there is a "U" profile downwards. In another embodiment, which is not shown, the guide channel 5 may also be of a different cross-section, provided that it allows good and safe guidance of the guide wheel 11 of the processing unit 6.

A longitudinal trolley 13 is mounted on the lateral guide 3 via linear bearings 15, which travel along the workbench 2 through them and with the help of the drive 7 and the timing belt 8 to the frame 23 of the longitudinal trolley 3. fixed transversely to the workbench 2, the transverse trolley 16 with the machining unit 6 is mounted on the guide 10 through the intermediate linear bearings 14. The machining unit 6 is fixedly fixed to its transverse cartridge 27 via its frame 27. A guide wheel 11 is attached to the frame 27 of the processing unit 6, which is rotatably inserted into the guide channel 5 so that it can travel freely within it. In the embodiment shown, the guide wheel 11 is located at the top of the frame 27, and in another embodiment, this guide wheel 11 may also be attached to the side wall of the frame 27, and the position of the guide channel 5 is adjusted accordingly.

As can be seen from the foregoing description, the machining unit 6 is linearly movable at the same time in the longitudinal and transverse directions, which is provided by the longitudinal trolley 13 and the transverse trolley 16, which is guided by a guide channel 5 in which its guide wheel 11 is located. the wheel 11, in particular its running surface, is designed to allow for the most fluid, quiet and elastic travel within and along the guide channel 11 at high speed.

Inside the frame 27 of the processing unit 6 there is a swing arm 26 with a circular saw blade 17 at its free end, which is rotated therein in a pivot 52 of any embodiment. On the contrary, the swing arm 26 pivots pivotally into the pivot 53, also of any design. A drive motor 18 is attached to the frame 27, which drives a circular saw blade 17 through the drive wheel 25 and any intermediate gearbox.

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For the movement of the swing arm 26 with the circular saw blade 17 vertically, that is, for raising and lowering the circular saw blade 17, a drive 24 is provided, which is movably clamped between the pivot 54 on the swing arm 26 and between the pivot 55 on the frame cover 27.

On the inlet side of the flying circular saw according to the invention, an adjustable inlet duct or tunnel for workpiece guidance 9 is formed on the longitudinal trolley 13, which is formed by an upper inlet flap 20 with actuator 12, a lateral pair of jaws 19 with actuator 21 and an adjusting mechanism 22 below. fixed workbench 2. For clamping workpieces 9 on a path through a flying saw and in cross-cutting, a clamping unit 28 is provided which is movably mounted on guide rails 34 and 33 fixedly to the frame 23 of the longitudinal trolley 13 through guide plates 32 and 33. The clamping unit 28 consists of a threaded spindle 29 extending through the right nut 30 and the left nut 31, further from the swing arms 35 and 36 with pistons 37 and 38 and cylinders 39 and 40. The cylinder 39 is pivotably pivoted between pivots 43. and 45, while the cylinder 40 is movably clamped between the nozzles 44 and 46 via the piston rod 38. The jaw of a pair of jaws 19. Thus, in the pivot 46, apart from the piston rod 38, the swing arm 36 and the corresponding jaw of the pair of jaws are movably mounted.

19. The swing arm 35 is pivotally engaged between the pivot 47 on the guide plate 32 and between the pivot 45 on the frame 23 of the longitudinal trolley 13. The swing arm 35 is parallelly pivoted between the pivot 48 on the guide plate 33 and between the pivot 46 on the frame 23 longitudinal trolley 13.

In another embodiment, which is not shown, the flying saw according to the invention may also be designed in a mirror construction, according to the construction of the preferred embodiment described above. In such a mirror embodiment, the machining unit 6 with saw blade 17 is located below the level of the workbench 2 through which the workpiece 9 travels. In this case, the oblique groove 50 is also made into the back surface of the workbench 2.

The circular saw for continuous cutting of extremely long wood workpieces according to the invention preferably completes the assembly of a machining line for the production of toothed end faces of elongated workpieces 9 and their gluing and joining with toothed joints to extreme lengths within continuously operating presses. Of course, it can also be used to cross-cut other relevant materials, such as plastic workpieces 9. The flying saw according to the invention can also be used in assembly of different machine assemblies or machining lines and for other purposes that require similar functional and performance characteristics.

The following will describe the process of cross-cutting or cutting extremely long wood workpieces 9 with a flying saw according to the invention into individual shorter pieces of equal or different lengths, with the support of a schematic representation of its continuous operation in FIG.

Before switching on the flying saw according to the invention and before the process of cross-cutting the extremely long workpiece 9 into shorter pieces, it is necessary to make some preliminary adjustments, which are mainly conditioned by the cross section of the workpiece 9, that is, its dimensions and shape. The height of the inlet flap 20 is adjustable by the actuator 12 and, as a rule, is slightly higher than the height of the cross-section of the workpiece 9 to prevent the workpiece 9 from being raised at the inlet of the flying saw. Following is the setting of the clamping unit 28 by rotating the threaded spindle 29 with the left and right threads via the actuator 21 via the adjusting mechanism 22. In this way, through the right nut 30 and the left nut 31, a pair of jaws 19 is opened or closed, or narrowed or widened by a distance between them, and thus adjusted to a distance corresponding to or slightly larger than the workpiece 9. Following is the setting of the desired lengths of shorter, sawn pieces of workpiece 9, which is done with the control unit, which is not shown. As a rule, the control unit is designed as a control panel equipped with appropriate computer software and hardware. The control unit can be used to adjust the flying saw according to the invention for sawing workpieces 9 into equally long pieces or to differently shorter pieces. This means that the extremely long workpiece 9 can thus be cut into several shorter pieces of the same length, or each piece is of a different length, and all intermediate combinations are possible. In this case, the minimum length of the cut-off short piece of the extremely long workpiece 9 is considered to be conditioned by the time spent by the processing unit 6 on working and return travel on route A-F and back on route F-A. Therefore, the minimum length of the shorter piece depends not only on the length of the path A-F or on the length of the guide channel 5 along this path, but also on the travel speed of the processing unit 6 with the workpiece 9 on this path A-F. Following the initial setup described above, the flying saw according to the invention can be switched on and started cutting.

The extremely long workpiece 9 arrives at the flying saw according to the invention at high speed from the previously mentioned press for continuous gluing and compressing of toothed joints or from any other machine or device in front of the flying saw. Extremely long workpiece 9 is understood to mean workpiece 9 having a length of tens, hundreds, thousands or thousands of meters in total length. From the pre-treatment unit, the workpiece 9 travels to the flying saw according to the invention at a speed, preferably the very high speed, which is provided to it by the propulsion of this pre-treatment unit for its straight travel. In this way, the workpiece 9 does not need to be moved in and out of the flying saw by a standalone drive or conveyor.

As mentioned before, an extremely long workpiece 9 with a previously obtained very high velocity arrives in the area of the flying saw and then slides along the front face of the workbench 2 at this speed, in the direction from point A to point F. of the long workpiece 9 into the flying saw the measuring wheel 49 measures the preset length of the shorter piece to be cut, while the workpiece 9 is protected against lift by the inlet flap 20. The speed of the workpiece 6, which is guided by a guide channel 5 through the guide wheel 11 , synchronizes or equalizes with a workpiece speed 9 a control processor with a motion sensor, which is not shown and is an integral part of a comprehensive computer software. In this way, the speed of movement of the processing unit 6 with the circular saw blade 17 from point A to point B equals the speed of movement of the workpiece through the flying saw. As the machining unit 6 with a circular saw blade 17 is movably mounted on the transverse trolley 16 and which is movable on the longitudinal trolley 13, this consequently equates the speed of movement of the longitudinal trolley 13 with the speed of the movement of the extremely long workpiece 9. The described equalization, or synchronization of speed, performs from the point of entry of the extremely long workpiece 9 into the flying saw, ie from point A and lasts until point B when the workpiece 9 is engaged.

After the speed synchronization is completed, clamping unit 28 is actuated at point B, which with a pair of calipers 19 laterally rigidly compresses an infinitely long workpiece 9 which travels through the flying saw at unbroken high speed. In doing so, the swing arm 36 rotates in pivots 46 and 48 and moves towards the workpiece 9 so that the associated side jaw of the jaw pair 19 compresses, which is made possible by the piston rod 38 of the cylinder 40. At the same time, the swing arm 35 rotates in the pivots 47 on the opposite side. 45 and the associated jaw of the pair of jaws 19 presses against workpiece 9. The described process of clamping workpiece 9 therefore takes from point B to point C. Thus, the extremely long workpiece 9 at point C is already rigidly and fixedly clamped between the pair of jaws 19 of the clamping unit. 28 on the longitudinal trolley 13 and together with it, the transverse trolley 16 and the machining unit 6 with a circular saw blade 17, travel in a straight line towards point D.

At point C, the cross-cutting phase begins until point D, with the extremely long workpiece 9, together with the processing unit 6, still traveling at a constant rate, ie a constant speed. The shape of the segment channel 5 from point C to point D is formally identical to the shape of the sloping groove 50 in the face of the workbench 2. Therefore, the slope of the guide channel 5 between points C and D is consistent with the slope of the sloping groove 50, whose cross-section must correspond to the design of a circular saw sheet 17 and its vertical and horizontal expiration before, during and after cross-cutting. In order to gain a better understanding of the operation of the flying saw according to the invention, it seems reasonable to repeat that the longitudinal travel path of the processing unit 6, from the start point A to the end point F, determines the guide channel 5 within which its guide wheel 11 travels. is a guide channel 5 along the longitudinal center axis of the characteristic serpentine shape, preferably made with two opposite curves or turns, which are followed in intervals. The distance X between the longitudinal center axes of the first and second turns represents the width of the cut of the circular saw blade 17 and is slightly larger than the width of the workpiece 9.

In the interval between points B and C, except for clamping the workpiece 9 into the clamping unit 28, the machining unit 6 with a circular saw blade 17 at right angles approaches the workpiece 9 by sliding the circular saw blade 17 towards it and touching it at point C . This is enabled by the drives 24 and 25 for vertically lowering and lifting the circular saw blade 17 together with the swing arm 26 and the saw blade drive 18 17. At point C, the cross-cutting phase begins, ending at point D. At this distance, the processing unit 6, that is, its circular saw blade 17, performs several movements in a coordinated fashion at the same time. Longitudinal movement through the longitudinal trolley 13, transverse movement by means of the transverse trolley 16, vertical movement by means of actuators 24, 25 and swing arm 26, and rotational motion by means of actuator 18. In this case, the processing unit 6 with a circular saw blade 17 is continuously guided along the curve of the CD of the guide channel 5, in which its guide wheel 11 moves freely.

At point C, the circular saw blade 17 is cut into an extremely long workpiece 9 and, due to the influence of the previously described simultaneous longitudinal and transverse displacement, is cut transversely according to the curve defined by the leading channel 5. In this case, the circular saw blade 17 does not cut into the front surface. Workbench 2 is assisted by the slant groove 50 provided therein. At point D, the cross-cutting of the extremely long workpiece 9 into a shorter piece of any length is completed and the circular saw blade 17 is raised at least enough to leave the slant groove 50 in the workbench 2. This occurs at point E. At a distance from point D to point E, the clamping unit 28 is simultaneously deactivated by moving a pair of jaws 19, thereby releasing the workpiece 9. In this case, each cross-section of the extremely long workpiece 9 is perfectly straight and perpendicular. on its longitudinal axis.

From point E to point F, the braking phase of the processing unit 6 with a circular saw blade 17 is carried out. The braking is actuated 7 of the longitudinal trolley 3 by stopping at the point F of the processing unit 6 with a trolley 16 and the longitudinal trolley 13 and following the same path. , but in the opposite direction, returns to starting position 5 through guide channel 5. The whole process is repeated continuously, cyclically, until the extremely long workpiece 9, of the same cross-section along its entire length, is fully cut into shorter sections. When.

Before starting again the cross-cutting of workpiece 9, which may be of a different cross-section, the setting of the inlet flap 20 and the clamping unit 28 is made again to the dimensions of the new cross-section of the workpiece 9. The desired length of the cut-off, shorter pieces of the workpiece 9, which is performed with the previously mentioned and not shown control unit.

The speed of the linear movement of the processing unit 6 and thus of the longitudinal trolley 13 along the workbench 2 is accelerated or increased in the synchronization zone, from point A to point B, so that at point B the processing unit 6 has exactly the same speed as the extreme speed long workpiece 9. Then, at point B, the workpiece 9 is clamped into a pair of jaws 19 of the clamping unit 28. This means that the fixed-jointed work unit 6 and the workpiece 9 travel at the same speed until it is released at point E.

As mentioned previously, the drive 7 of the longitudinal trolley 13 is controlled by a non-displayed computer control unit, which is primarily tasked to control and monitor the cross-cutting process in such a way as to provide the drive 7 with a pulse for linear movement of the longitudinal trolley 13, which must in a short time at intervals, accelerate the speed of the longitudinal trolley 13 so that the speed of the longitudinal trolley 13 is fully synchronized or equated with the speed of the extremely long workpiece 9. In the following, it is also the task of this control unit to activate and deactivate the clamping unit 28 to lower and lift the circular saw blade in a timely manner. 17 and to return the machining unit 6 to its starting position after each transverse cut. In other words, the control unit guides and controls the entire process of cutting extremely long workpieces 9 into shorter pieces in a flying saw according to the invention, from point A to point F, and then in the reverse direction from point F to point A.

Based on the tests performed on the prototype flying saw according to the invention, it can be empirically argued that this saw can cut about 150 meters long workpiece 9 into 15 shorter pieces of different lengths in a single minute, irrespective of its cross-section, with the accuracy of the cut length + - 5 mm.

Claims (17)

PATENT APPLICATIONS A flying circular saw for continuous cross-cutting of extremely long wood workpieces at high speed, characterized in that the machining unit (6) with a circular saw blade (17) is three-dimensional moving and guided by at least one guide along the work table (2) a channel (5) into which at least one running guide wheel (11) is inserted, which is preferably attached to the frame (27) of the processing unit (6); that the guide channel (5), which is located above the workbench (2) and adjacent to the processing unit (6), is in the plan of curved or serpentine shape, with at least two opposite turns, the distance (X) being equal to the width a cross-cut of a circular saw blade (17) and slightly larger than the workpiece width (9); at least one groove (50) is made in the front sliding surface of the fixed workbench (2), which is located below the processing unit (6); that a clamping unit (28) is attached to the longitudinal trolley (13) with at least one pair of lateral jaws (19), which is positioned in front of the machining unit (6) and above the workbench (2), and which together with at least one vertically movable the upper inlet flap (2) forms the inlet guide channel of the workpiece (9). Flying circular saw according to claim 1, characterized in that the guide channel (5) is fixed to the housing (1) with supports (4) and is of any cross-sectional and longitudinal section and length. Flying circular saw according to claim 1, characterized in that the slanting groove (50), in the work table (2), has in the plan a shape which is generally identical to the shape of the leading channel (5) and, which generally has a smaller cross-section and length. Flying circular saw according to claim 1, characterized in that the guide wheel (11) is of any kind, preferably freely rotatable or running. 5. Flying circular saw according to claim 1, characterized in that the three-dimensional movement of the processing unit (6) and thus the circular saw blade (17) allow for a longitudinal trolley (13), a transverse trolley (16) and a drive (24). Flying circular saw according to claim 1, characterized in that the circular saw blade (17) in the pivot (51) is rotatably clamped into the swing arm (26), which is pivotally pivoted to the frame (27) of the processing unit (6). ), which also has a pivotally movable drive (24) for lowering and lifting a circular saw blade (17) driven by a drive wheel (25). Flying circular saw according to claim 1, characterized in that one jaw of a pair of jaws (19) in the pivot (46) is movably connected simultaneously with the swing arm (36) and the piston rod (38) and its other jaw is in the pivot (45 ) simultaneously coupled to the swing arm (35) and piston rod (37). Flying circular saw according to claim 5, characterized in that the swing arm (36) with the other end and in the pivot (48) is also movably mounted on the guide plate (33) and that the swing arm (35) with the other end and in the pivot (47) also movably mounted on the guide plate (32). Flying circular saw according to claim 1, characterized in that the actuator (21) and the adjusting mechanism (22) are also an integral part of the clamping unit (28), and the drive (12) belongs to the inlet flap (20). 10. A method of adjusting a flying circular saw before beginning the cross-cutting of extremely long workpieces, characterized in that, depending on the cross-section of the workpiece (9), a preliminary fixed adjustment of the inlet flap (20) to a certain height is carried out by means of a drive (12) and further, by means of the actuator (21) and the mechanism (22), adjusts the width of the pair of jaws (19) of the clamping unit (28), with the height and width being set slightly larger than the height and width of the workpiece (9); to adjust the desired single or different lengths of shorter pieces to which the extremely long workpiece (9) will be cut (9) with the control unit not shown, whichever is the minimum length of the cut piece being conditioned by the length of time the workpiece (6) has a circular saw blade ( 17) spend for his journey at a distance from point (A) to point (F) and back. 11. A method of continuous, continuous cross-cutting of extremely long workpieces by a flying circular saw, characterized in that the extremely long workpiece (9), which arrives at the work table (2) at a predetermined, very high traveling speed, enters the guide channel, formed by the upper inlet flap (20), the lateral pair of jaws (19) and the front face of the workbench (2); provides for measuring the lengths of shorter, cut-off pieces of the workpiece (9), a measuring wheel (49) which is mounted on entry to the workbench (2); that the process of cross-cutting or cross-cutting the extremely long workpiece (9) into shorter pieces is carried out by a path performed by the processing unit (6) with a circular saw blade (17), which is guided by a guide wheel (11) guide channel (5) from point (A), through points (B, C, D, E), to point (F) and back, which is repeated cyclically until the final section of the workpiece (9). 12. The cutting process according to claim 11, characterized in that the travel speed of the processing unit (6) and thus of the circular saw blade (17) is synchronized or equalized on the path from point (A) to point (B), with the input speed of the extremely long workpiece (9), which is made possible by a corresponding, unlabeled motion processor with a motion sensor directed by the associated computer program. 13. The cutting process according to claim 11, characterized in that a clamping unit (28) is actuated on the path from point (B) to point (C), which rigidly clamps the workpiece (9) with a pair of jaws (19). from point (C), the machining unit (6) with a circular saw blade (17) and an extremely long workpiece (9) travel at the same speed, while at the same time the circular saw blade (17) drops slightly above the bottom of the oblique workpiece (9). groove (50) in workbench (2). 14. The cutting process according to claim 11, characterized in that at point (C) begins and at point (D) ends the phase of cross-cutting the workpiece (9) into any shorter piece, in which the blade of the circular saw blade (17) it travels at the same time inside the sloping serpentine groove (50) in the work table (2) corresponding to the curve of the leading channel (5) in this segment. Cross cutting method according to claim 11, characterized in that, on the way from point (D) to point (E), the clamping unit (28) moves a pair of jaws (19), thereby releasing an extremely long workpiece (9) the circular saw blade (17) rises from the sloping groove (50). 16. The cross-cutting method according to claim 11, characterized in that the actuation of the longitudinal trolley (13) and, consequently, the processing units (6) with the drive (7) on the way from point (E) to point (F) circular saw blades (17) so that the processing unit (6) stops completely at point (F) and stops in the same way, but in the opposite direction, from point (F) to point (A), along the path defined by guides the leading channel (5) to the starting position to point (A). Cross-cutting method according to one of Claims 11 to 16, characterized in that the continuous or continuous cross-cutting of an extremely long workpiece (9) that follows the path indicated by the guide channel (5) with the virtual points from (A) ) up to and including (F) and back, as a rule, cyclically, until the extremely long workpiece (9) is completely cut into shorter pieces of any length.