FI123317B - Plant for processing logs - Google Patents

Description

Hardware for log processing

The invention relates to an apparatus for machining a log according to the preamble of claim 1.

A conventional known log sawing saw line operates as follows. In the first 5 steps, the peeled log is measured in three dimensions, e.g. with an optical 3D meter, whereby its geometric shape can be accurately determined. In this case, information is collected e.g. log diameter, taper, oval and crooked. The log measurement data is stored in a control unit or the like and is utilized for processing and dividing the log into pieces of wood. The log 10 is then rotated, if necessary, with an appropriate rotation device to an optimum position for the saw machine or the corresponding woodworking machine for the saw line. The first woodworking device is generally a mere chipper, for which the log is positioned with a suitable pair of side rollers for feeding, and whereby the two opposite sides of the log are smoothed while the surface of the log side to be separated is chipped. In this case, the subsidies are made up only. In the next step 15, the plain is turned so that its smoothed straight surface is facing down against the conveyor. Thereafter, the plain is only centered on the second plain chipper, where its two opposed untreated surfaces are basically aligned in the same way as in the previous first plain chipper. This alone creates a beacon with four flattened sides. The beam is at least partially incomplete, i.e.. at least a portion of its 20 longitudinal angles is the surface of the original log.

The beam is measured, after which the control of Parru's side boards and side board slicing is optimized. The optimization defines the dimensions of the sidewalls from the beam, in particular the width of the boards, the required height position and the direction of the profiling work. In the next step, the beam is machined with a suitable profiling machine to optimally cut off the edges of the beam at the edge of the beam. The profiled beam is then sawn off the first side boards using a suitable saw machine, preferably a circular saw. There is a servo-controlled pair of side rollers in front of the saw machine in the forward direction of the beam to position the beam in the correct position on the saw machine. In the next step 1, the remaining portion of the Parru is rotated 90 degrees by means of the next 30 rotators in the saw line, and the beam is again fed to a profiling machine which optimally co eds the edges of the Parru for other sideboards. The rest of the Parru o is then cut into a piece of wood with a suitable saw, such as a jigsaw. In front of the jig saw is another servo-controlled pair of side rollers to position Parru in the correct position for the saw blade.

2

The problem with sawing lines such as the above is that they are long lines of structure. In the sawmill, the various steps of the operation require their own unit, which in principle is equal to the maximum length of the log to be processed. The disadvantage is that such a long sawing line requires a lot of space to build on the kal-5 list.

Finnish patent FI-104316 discloses a method and apparatus for treating a tree trunk, i.e. log, by measuring a tree trunk in a three-dimensional manner, transmitting data to a control unit and defining a trunk processing centerline and sidewall processing centerlines and widths. First, the sides of the tree trunk are flattened with a simple chipper so that it has four flattened sides, that is, it is formed into a square beacon. The side boards are then machined to the opposite sides of Parru with specific milling cutter heads, whereupon any Parru edges are removed and the side boards are cut off from the beam. Alternatively, the sidewall sawing is performed prior to the 15 edging of the sidewalls with milling blade heads.

A problem with the solutions according to the above-mentioned patents is e.g. in particular, the aim is to align the four surfaces of the jamb's trunk with close-together chopping blades. It is difficult to level the surface of a curved tree trunk and useful wood is also lost in the process.

The object of the apparatus according to the invention is to eliminate e.g. problems with known Sakhalin rivers and / or peeler lines. It is also an object of the invention to provide a new apparatus which is ultimately able to improve the yield of sawn timber, i.e., sawn wood pieces, while physically shortening the saw line or the like log handling line.

C/O

The apparatus according to the invention is characterized in what is set forth in claim 1.

Preferred embodiments of the apparatus i according to the invention are disclosed in the dependent claims.

CL

cd In an improved method of machining a log, the log is fed to a processing line and o 30 is passed through the following processing steps: δ a) the log is measured in three dimensions to determine its geometric shape; 3 b) log measurement data is stored, based on which the log processing is performed; c) checking the position of the log and rotating the log so that any Lenko 5 is up; d) positioning the log and feeding it into the machining equipment Lenko upwards for carrying out the log processing.

Further, in method e), the log is supported from below with the log being processed by the machining apparatus based on the measurement data stored in step b, in particular the log curvature information.

15

In a preferred embodiment of the invention, the log processing apparatus provides at least a first log step for aligning the two vertical sides on the opposite sides of the log, thereby making the log a first, and preferably also a second log step, machining the first and second vertical sides only. the grooves delimit at least the first and second side boards to the flattened sides only, and are followed by stepwise machining in the log transfer direction, followed by a sawing machine side removal step from the first sole. The successive first and second machining steps as well as the removal of the side boards and the log positioning and underside support associated with these processing steps are performed on the processing line such that the log is partially in one processing step n while it is partially in the preceding processing step. Thus, at least two successive processing steps are provided over an area of length

CM

^ maximum log length, preferably 6 m maximum.

o

C/O

The apparatus for machining a log according to the invention comprises a processing line in which | the log is moved forward by one or more conveyors and processed in the processing units of the processing line, mainly by suitable data processing, by means of processing programs stored in the unit, which includes:

O

™ 35 4 (a) a log meter, which is intended to measure the log in three dimensions and to store the measurement results in a storage unit for optimizing log processing in the data processing unit; 5 (b) a log rotation device which is intended to rotate the log so that any Lenko is upwards; c) log processing equipment; and 10 d) a plurality of side roller pairs (2012) by means of which the log (T) is to be moved, positioned, and at the same time supported from the sides, with the Lenko (L) facing upward, when feeding and processing the log.

According to the invention, the apparatus further comprises: e) a log support device arranged in connection with the log machining apparatus, the support device comprising a control unit for guiding the support device to follow the shape of the lower surface of the log, while supporting the log below. 1 2 3 4 5 6

An advantage of the invention is that the log, which is placed upwardly on the Lenko or similar longitudinal axis 2 and which is fed into the machining device in this position, maintains its position in the vertical position with the support device and prevents access to the machining blades and / or profiling machine. from the downward force 5 to deform its shape, in particular to straighten 6 its curvature. As a result, the results of the machining steps are accurate and the sawn timber, especially from the logs, is straight and precise.

C/O

0 The log support device is arranged in connection with the log machining apparatus so that it is in the working machining area of the log machining area, either directly in front of or behind the machining apparatus ° 30. This arrangement ensures that the log is supported from the bottom as it is machined.

CC

CL

co It should be noted that there are one or more log support devices in connection with the machining equipment [J5. In this case, one log support device is preferably arranged in the forward direction of the log in front of the log processing apparatus. In an alternative or complementary embodiment, the second log support device may be arranged in the log transfer direction after the log processing equipment. If the log processing apparatus comprises a plurality of successive machining devices, such as a chopper and a profiling machine, in all preferred embodiments, there is one log support device, one between each log support device and thereafter, in a preferred embodiment, a third log support device.

In a preferred embodiment of the invention, the log support means comprises a shaft, a support member disposed at its first end, and a power unit, preferably a pressurized fluid cylinder or the like, for moving the arm and support member arranged to act on the underside of the support. The advantage is the simple construction and reliability of the support device.

10

In another preferred embodiment of the invention, the arm of the log support device is pivotally supported in the direction of the processing line from one end to a support, such as the body of the processing line. The advantage is that the weight of the log is not entirely applied to the power unit, but is also directed to the chassis.

15

In a third preferred embodiment of the invention, the support member of the log support member is a circumferential piece, such as a disc or roller, which is freely rotatably attached to the shaft. The advantage is that, in this embodiment, the support member does not slide along the underside of the support but follows the surface in a rotary motion. This keeps the log surface 20 intact.

In a fourth preferred embodiment of the invention, the log support unit control unit is arranged to control the power unit on the basis of the log measurement data stored in the data processing unit. The advantage is that the shape of the bottom surface of the log in the longitudinal direction of the log is known from the measurement data and this guides the power unit and thereby the supporting device, especially the supporting member, to follow the shape of the bottom surface of the log 2.

δ

CVJ

In a fifth preferred embodiment of the invention, the support device is fixed by means of a spring member 30, such as a body of a processing line, with a suitable elastic member. The benefit of this x application is that any strongly protruding parts of the log,

CC

such as knots or the like, do not significantly affect the position of the support member ω relative to the logs, since the spring member acts like a shock absorber and yields, i.e. at least partially collapses when the protruding point hits the support member 35.

In a sixth and most advantageous embodiment of the invention, the log processing equipment includes at least a chipper and preferably (but not necessarily) a profiling machine as well as a sawing machine. According to the invention, the sequential log handling units, i.e. said plain chipper, profiling machine and saw machine, and the log side pairs of logs associated with the processing units and at least one log support device are arranged close to the processing line such that at least two sequential log handling units 5 are arranged log length.

An advantage of the invention is that the log support device maintains the log vertically in a predetermined and unchanged position, which acts on successively arranged sequential log handling units, thereby precisely and precisely processing machining results and / or sawing. As a result, the sideboards are dimensionally accurate and straightforward, just as they are for further processing.

Another advantage of the invention is that the processing line can be implemented as a short and efficient line. This saves manufacturing and installation costs, and ΚΙ 5 short lines can be covered more cheaply than long lines.

It is also a particular advantage of the invention that some of the central and important processing steps and processing units are preferably arranged in close proximity to each other, in particular successive processing steps / processing units over an area of up to 20 logs in length, up to 6 m.

In the following, the invention and its other advantages will be described in more detail with reference to the accompanying drawing, in which Figure 1 is a block diagram of a method for working a log in accordance with the invention;

C/O

Fig. 2 schematically illustrates an apparatus for machining a log in accordance with the invention; Figures 2a and 3a to 3e show different logs and cross sections of the log processed therefrom | 30 in the processing steps; Fig. 4 is a diagrammatic side elevational view of the apparatus of the invention and particularly of a preferred log support device.

δ

In the figures, like reference numerals are used for like parts.

7

A method for machining a log is illustrated in step-by-step block diagram in Figure 1. The corresponding apparatus is shown in Figure 2. In the method, the log is supplied to processing line 201 and passed through subsequent processing steps.

5

In the first step a, the log T is measured 102 by a three-dimensional log meter, such as a 3D optical meter (cf. Figure 3a). The geometrical shape of the log, such as tapering, oval and curved in the longitudinal direction of the log, i.e., the loop, and thus - if necessary - its position on the processing line and conveyor, is thus determined.

10

In the second step b, the measurement data of the log T collected in the measuring step 102 is stored 103. The log processing is optimized during the various processing steps by a suitable data processing unit 202 which has pre-stored appropriate programs for performing the optimization. As a rule, optimization means the recovery of the maximum volume of usable wood pieces and / or the value of logs.

In the third step c, the position of the log on the conveyor is checked and the log rotated by the rotating device 104 so that any Lenko TL (i.e. the curved portion of the log) is upward (Fig. 3b). It should be noted that the logs may include portions curved in different directions perpendicular to the longitudinal plane, in which case the portion of the curve - Lenko - will generally be turned upwards, with the greatest curvature between the ends of the log. The term "Lenko up" in this context means that the log portion of the log - Lenko - is approximately vertically upward, especially when optimization of log handling is also considered.

25

In the fourth step d, the log T is positioned and fed to the machining apparatus 105. The £ 2 computing unit provides instructions for the optimum log processing position, which is used to position the log (in addition to positioning the Lenko up i 1 2 in the third step) transferred i 2 30 to the machining equipment. In this embodiment, the machining apparatus 206 is provided with at least a simple chopper 2061.

CL

<2 While log T is fed to the machining apparatus and processed in machining apparatus o in step 1070, log 5 is supported in fifth step e from below 106, in particular £ 35 35 log T is supported underneath so that the log bottom surface and particularly log curvature and hence curvature are monitored the support medium. Thus, the shape of the support which deviates from the longitudinal straight line between the ends of the log is based on the previously performed log measurement and the log measurement data. The bottom edge of the lenko upwardly turned log serves as a guide for supporting the log and thereby maintains the log substantially vertically and perpendicularly to the direction of motion while in this embodiment being moved forward and fed to the machining equipment. The log T 5 is supported from below in the machining area of the machining equipment.

In a preferred alternative embodiment, the log T is supported in step e from below 106 when the log exits the machining apparatus 206; 2061. In another preferred embodiment, the log T is supported in step e from below 106, both the log 10 being fed into the working apparatus B in the forward direction of the machining apparatus and the log exiting the machining apparatus, i.e. the rear of the machining apparatus.

In the sixth step 107, the first two vertical and most preferably substantially straight sides, i.e. the first side and the second side s1, s2, are aligned 107 on logs T on opposite sides thereof with a chopper 2061, thereby making the logs P1 alone (Fig. 3c).

The purpose of the support below the log is to compensate for the downward force exerted by the machining equipment, such as a chopper only, on the log. Without the 20 supports below, the machining equipment presses a log which is placed in a curved or Lenko part upward direction, thereby curving its curvature and changing its position in an unpredictable manner, whereby also the machining result may deviate significantly.

In one embodiment of the invention, the machining apparatus 206 comprises, in addition to the first 25 machining chips 2061 only, a profiler 2062 operating as a second machining apparatus. In the next, or seventh, step 108, the first and second grooves ull, u21; ul2, u22 are machined with suitable ° milling heads of 108 profile machines at the top and bottom of each of the vertical sides s1, s2 of the first P1 alone (Fig. 3d). Ull of each career, u21; ul2, u22 one career page usl, us2; 30 us3, us4 is limited to the vertical side s1, s2 of P1 alone. Most preferably, the groove ull, x u21; ul2, u22 url page usl, us2; us3, us4 is at right angles to P1 only sl,

CC

s2. Urilla ull, u21; ul2, u22 are limited to the aligned sides s1, s2c0 of P1 alone in at least the first and second straight side boards L1, L2 in the appropriate direction. This is optimized according to the log measurement data and the data processing unit program ° 35. In the eighth step 109, the sideboards L1, L2 are most preferably removed by sawing the first plain P1 alone from the vertical sides s1, s2 (Fig. 3e) by a third machine. Then, in the ninth step 110, the remainder of the first P1 alone, i.e. the second P2 alone, and the detached 9 sideboards L1, L2 are separated. The side boards L1, L2 are dropped onto a suitable transverse conveyor 208b and taken for further processing of the side boards. The second P2 alone is conveyed by the longitudinal conveyor 208a to further processing 111 on the processing line 201.

In an embodiment of the invention, in the seventh step 108, the profile machine 2062 also processes the third and fourth grooves on the top and bottom of each of the vertical sides s1, s2 of the first single edge P1, u1, u21; ul2, u22 in parallel. The third and fourth grooves are preferably machined with suitable milling blades of the profile machine 2062 on the untreated surface side of P1 alone. The third and 10th grooves delimit the aligned sides s1, s2, the third and fourth substantially straight side boards, of P1 alone. This is done optimally according to the log measurement data and the data processing unit program. Then, in the eighth step 109, all the sideboards are removed by sawing the first side P1 alone with a suitable saw machine. The remaining portion of the first alone, i.e. the second P215 alone, and all of the detached sideboards are separated from each other in a ninth step 110 and transferred to further processing steps.

In a preferred embodiment, the sequential processing steps are carried out on the processing line 201 such that the log T is partly in one processing step while being 20 in the preceding processing step. The front end of the log T is then in one processing step, such as the seventh step 108, where the grooves ull, u21; ul2, u22 are machined to P1 alone, while the central portion (or at least the rear end) of the log T is from a previous processing step, such as in the sixth step 107 where the vertical sides of the log T are aligned. At the same time, the disarming of the log and the underside of the log are associated with these processing steps. Alternatively, the log T is simultaneously in three successive processing steps. Thus, the front end of the log T is, for example, £ 2 in the eighth step 109 where the sideboards L1, L2 are removed by sawing the first log P1 only from the vertical sides s1, s2, the middle portion of the log T in the seventh step i ul2, u22 are machined with P1 alone, and the back end i2 of log T is in a sixth step 107 where the vertical sides of the log are aligned. At the same time x, the positioning of the log and the below log associated with these processing steps are implemented.

In this embodiment of the invention, it is essential that at least two successive steps of log handling, possible positioning of the log, and support below the log are arranged in an area A of maximum log length, preferably between ≤ 355 m and 7 m, most preferably 6 m.

10

The positioning and / or cross-section of the log T and the P1 alone, and / or the cross-section after operations with the various processing units, are also illustrated in Figures 3a to 3h.

The apparatus according to the invention for working the log 5 comprises a processing line 201, which block the T is moved forward (in the direction of arrow B) in one or more of the conveyor 2011 is positioned (adjusted and maintained at a given position in the lateral direction of the view), a plurality of side roller pairs 2012; 2012,2012, 2012, and log support device 205, in particular a lower support device for supporting log T from below to 10 following its curvature as the log is machined. The log T is processed by the processing units included in the processing line 201 mainly according to the processing programs stored in a suitable data processing unit 202, such as a computer, with the primary aim of optimizing the log processing to maximize the yield of log pieces. The processing units of this apparatus comprise at least the following: a log gauge 203, a log rotating device 204, a machining apparatus 206 comprising at least a first machining machine or chopper 2061. In a preferred embodiment of the invention, the apparatus further comprises a second machining unit a profiling machine 2062, a third machining device, i.e. a sawing unit 207, and a separator-20 bone unit 208. The processing units are arranged successively in the order shown, preferably in the order shown.

A log meter 203, such as an optical D3 meter, is a device for measuring log T three-dimensionally (cf. Fig. 3a). The log gauge is used to measure, for example, the cross-sections of the log 25 along the longitudinal length of the log at appropriate short distances. In this case, the geometric shape of the log, such as conicity, oval shape and looping, i.e. curvature, to find out. At the same time, the T position and position of the £ 2 log 2011 on the conveyor are also indicated. The dimensions of log T are stored in a suitable memory unit 2021, most preferably in connection with data processing unit 5 202, ώ 30 x Log rotating device 204 is a device by which the log is to be rotated so that any Lenko L can be rotated. the curve portion is upward (Fig. 3b). This is the position 2 in which the log T is processed in the following processing unit.

moo 35 Log T is positioned and supported laterally for machining equipment 206 (and, if necessary, overhead machining equipment) by a plurality of side roll pairs 2012. The side roll pair 2012 comprises two side rolls 2012a, 2012b arranged transversely to and across the log . The position T of the log T is adjusted and held in a certain position laterally by pairs of side rollers 2012 arranged in the immediate vicinity of processing units such as machining equipment 206 and sawing unit 207.

5

The support support device 205, in particular the support device below, comprises a support member 11 arranged on an elongated arm 12. The support device 205 further comprises a power unit 13, such as a pressure medium cylinder, a handle 12 and a support member 11 for controlling the power unit 13. The support member 11 is arranged to act on the logs T, in particular on the underside of the log when it is moved upwards by means of the conveyor 2011 and the side roller pairs 2012 to the machining apparatus 206.

Preferably, the arm 12 of the support device 205 is pivotally supported at one end 12b in the displacement direction B to the body 206a of a processing line such as a machining device 206. The support member 11 15 is attached to the first end 12a of the arm 12. Preferably, the support member 11 is a circular body, such as a disc or roll, which is secured to a first end of the arm 12 from a central axis perpendicular to the direction of transmission B. Most preferably, the support member 11 is freely rotatably attached to the arm 12, whereby it freely follows the propagation movement (direction B) of the wheel support to the machining apparatus. The support member 11 20 is provided with a roughening at its periphery, such as teeth 1a or similar pins.

The propulsion device 13 of the support device 205 is most preferably a pressure medium cylinder 13a or alternatively e.g. The power unit 13 is disposed between the arm 12 and the body 206a of the apparatus, or the like, with a fixed base to which the other end 12b of the arm 25 is pivotally mounted. By means of the power generator 13, the arm 12 is pivotable with respect to the attachment point of the other end 12b so that the support member 11 can be moved vertically within a suitable range of motion.

δ

CM

o When the power unit 13; 13a is a pressure medium cylinder, such as a hydraulic cylinder, the control unit 14 includes one or more valves for controlling the supply of a pressure medium, such as hydraulic oil, to the pressure medium cylinder to adjust this length and position of the support member 11.

C/O

C/O

The control unit 14 of the support device 205 is a suitable data processing unit, such as a microcomputer having a memory unit. The vertical processing area of the arm 12 and therewith the support member 11 is stored in the data processing unit, whereby the support device can be used to support the log T below. The profile of the log T, in particular the shape of its lower surface at the log position in which the Lenko or similar curve 12 is rotated upwardly by the log rotation device 204, is provided to the control unit 14 of the support device 205 from the entire hardware control unit 202. Based on this log profile information and log conveyor location data, the control unit 14 of the support device 205 is instructed by the appropriate computer program to assist the power unit 13 to pivot the mandrel 12 so that the supporting member 11 is raised, held vertically, or lowered. machining equipment and machining station.

10 In a preferred embodiment of the support device 205, its control unit 14 is substantially integrated into the control unit 202 of the entire hardware.

In one of its preferred embodiments, the support device 205 comprises a resilient member 15 through which the power device 13 is secured to the body of the apparatus or the corresponding fixed base 206a. The resilient member 15 comprises a support member 15a and a resilient member 15b. the support member 15a is pivotally mounted on one side to the base 206a by a suitable hinge member 15c or the like. An elastic member 15b, such as a spring or the like, is provided between the support member 15a and the substrate 206a, and is preferably provided with a shield, such as a flexible shield. The resilient member 15 acts as a shock absorber 20 for the support member 11 when a portion of the log T, which protrudes strongly from its normal curved plane, in particular a knuckle point, abuts the support member 11 when supporting the log from the underside. The strut 15, in particular its elastic portion 15b, thereby yields and at least partially collapses when the branch point hits the support member 11 and no displacement of the T position of the log T can occur.

25

The log machining apparatus 206 comprises at least a first machining apparatus, i.e. a mere £ 2 chopper 2061, wherein the 2061 preferably has two chipping discs 2061a, 2061b and / or corresponding chipping means. The first two vertically substantially straight sides o, i.e. the first side and the second side s1, s2, are machined by the chopper 206 30 into the logs T on opposite sides thereof, thereby making the logs the first single P1x (Fig. 3c).

CL

C/O

The log machining apparatus 206 further comprises, in this embodiment of the invention, a second machining machine, or profiling machine 2062. This profiling machine 2062 preferably comprises at least four working stop sounds, such as a course. On the machining heads of the profiling machine 2062, the first and second grooves ui 1, u21; ui2, u22 are machined in the longitudinal direction of the first plain P1 alone to the top and bottom of each of the vertical sides s1, s2 alone (Fig. 3d). Ui 1, u21 for each groove; ul2, u22 one groove side usl, us2, us3, us4 is arranged to be limited to the vertical side of P1 alone and at right angles to this side. The first and second grooves define at least the first and second substantially straight side boards L1, L2 on the aligned sides s1, s2 of P1 alone. The position and dimensions of the sideboard L1, L2 are most preferably determined according to the information obtained from the optimeter 203 and the processing instruction Elma stored in the data processing unit 202.

Also, in this embodiment of the invention, log processing equipment 206 comprises a third processing machine, or saw machine 207. It comprises suitable blade units 207a, 10 207b for cutting side boards L1, L2 by cutting off the vertical sides s1, s2 of first P1 alone (Fig. 3e).

The separation unit 208 comprises e.g. a side-free conveyor 208a, such as a conveyor chain, which is parallel to the processing line 201. Hereby, the side boards L1, 12 are arranged to fall on the transverse side board conveyor 208b beneath the conveyor 208a by gravity, while the other second P2 alone is advanced for further processing by the conveyor 208a and the processing line 201.

In a preferred embodiment of the invention, at least some of the sequential processing units of the apparatus, in particular the machining apparatus 206, the chopper 2061 and the profiling machine 2062 and the sawing machine 207 and associated at least one log support device 205 are arranged adjacent to the processing line 201. the unit is arranged in an area A which is not more than 6 m in length, up to a length of 6 m. In this case, the log T is under processing line 201 in part for one processing unit while in part for the preceding processing unit. The front end of the log T is then in one processing unit, such as the processing of a £ 2 profiling machine 2062, with grooves ull, u21; u21, u22 are processed into fear P1 while the center (or at least the rear end) of log T is in the previous unit i0, as in the case of chopper 205 only, where log vertical T i is ≤ 30 psi s1, s2. Alternatively, the log T is simultaneously in three successive processing units. Thus, the front end of the log T is, for example, in the sawing machine 207, where the side boards L1, L2 are removed by sawing the first plain P1 only from the vertical sides, the middle part of the log T in the profiling machine 2062, u21, u22 are machined o P1 alone, and the back end of the log T in the chopper 205 only, where the vertical ^ 35 sides of the log are aligned. It should be noted that the log support device 205 is arranged immediately in front of the machining device 206 in the log transfer direction B, whereby the support below the log affects the processing of the log T at least in the chopping machine 2061 but most preferably in the profiler 2062 and even in the saw machine 207.

14

In an alternative embodiment of the invention, there are a plurality of log support means 205 and are arranged, in addition to the above support device, e.g. between the chopper 2061 and the profiling machine 2062 and / or in the log transmission B after the profiling machine 207.

It should be noted that the above apparatus according to the invention is schematically illustrated and illustrates only the processing steps and processing units essential to the invention. The devices required for the transfer and possible orientation of the log T and the machined P1 10 alone to the various processing units, such as pairs of side rollers 2012 known per se, are not described in detail herein.

The invention is not limited solely to the above exemplary embodiment, but many modifications are possible within the scope of the inventive concept as defined in the claims.

C/O

δ cv o

CD

X

DC

CL

C/O

CD

r-

LO

O

δ CVl

Claims (7)

15 An apparatus for processing a log, the apparatus comprising a processing line (201) in which the log (T) is advanced by one or more conveyors (2011) and processed in the processing units within the processing line mainly by processing programs stored in a suitable data processing unit (202); the processing units including: a) a log meter (203) for measuring the log (T) in three dimensions and storing the measurement results in a memory unit (2021) for optimizing the processing of the log 10 in the data processing unit (202); b) a log rotation device (204) for rotating the log so that any Lenko (L) is up; C) log processing equipment (206; 2061); d) a plurality of side roller pairs (2012) by means of which the log (T) is to be moved, positioned, and at the same time supported from the sides, with the Lenko (L) facing upwards, when feeding logs to and from the machining device; 20 characterized in that the apparatus further comprises: e) a log support device (205) arranged in connection with a log processing device (206; 2061), the support device (205) comprising a control unit (14; 202) for controlling the support device (T) shape while supporting the log (T) below this. CO δ CvJ Apparatus according to claim 1, characterized in that the log support device $ 30 (205) comprises a shaft (12), a support member (11) g disposed at its first end, and a power device (13; 13a) for moving the shaft and support member (11). ) is arranged to act on the underside of the log (T) when it is fed to the machining device (206). LO 0 S 35 3. Apparatus according to claim 2, characterized in that each arm is pivotally supported in the direction of the processing line (201) at one of its ends (12b) to a substrate, such as the body (206a) of the processing line (201). 16 Apparatus according to claim 2 or 3, characterized in that the support member (11) of the log support device (205) is a circular piece, such as a disk or roller, which is freely rotatably attached to the shaft (12). 5 Apparatus according to any one of claims 2 to 4, characterized in that the control unit (14) of the log support device (205) is arranged to control the power unit (13; 13a) on the basis of the log data (T) stored in the data processing unit (202). 10 Apparatus according to any one of the preceding claims, characterized in that the support device (205) is resiliently attached to the substrate, such as the body (206a) of the processing line (201), by a suitable elastic member (15). Apparatus according to any one of the preceding claims, wherein the log processing equipment comprises at least a chipper (2061) and preferably also a profiling machine (2062), and furthermore a saw machine (207), characterized in that successive log processing units (206; 2061, 2062); 207), and the log side pairs (2012) and at least one log support device (205) associated with the processing units are arranged close to the processing line (201) so that at least two successive log processing units (206; 2061, 2062; 207) are provided. is arranged in an area (A) not more than the length of the log (T). co δ CvJ o CD X X Q. CO CD 1 ^ LO O δ C \ J 17