JP5241307B2 - Log posture control type feeding device and log feeding method - Google Patents

Description

  The present invention relates to a posture control type feeding device and a log feeding method for processing a log (raw wood) into a square material (column or beam material) or a plate material, particularly when taking out the square material from the log. The so-called field logs (some unprocessed parts) that remain round in the processed state are eliminated, and centering is possible so that the maximum square material without field logs can be taken out from the logs, and at the same time, high-speed and efficient lumbering. The present invention relates to a posture control type supply device for logs and a method for supplying logs.

As a specific method for determining the wood-cutting center when taking out the timber from the log, for example, one end (original port) and the other end (end) are gripped by gripping means or a chucking unit (gripping device). , Rotate the chucking unit, and place a plurality of surrounding shape (contour lines) measuring devices between the front and the end, and the cross-sectional shape of the log (log) (the circumference of the surface perpendicular to the axial direction) Measure and shape the surrounding shape (ie contour). In this case, the log is rotated about 360 degrees with the center line of the chucking unit as the rotation axis while being rotated while being held by the chucking unit, and the cross-sectional shape (contour line) at the measurement point is viewed from the axial direction. The inscribed circle of the square member having the maximum effective cross section is determined while being displayed in an overlapping manner and analyzed by a computer, and the radial direction of the log according to the deviation between the center position of the inscribed circle and the center position of the chucking unit rotation axis A method is known in which the position is corrected and matched, and the log is conveyed as a reference position for the tree cutting operation while maintaining the corrected setup state. Specifically, for example, at least three contour lines are measured between the front and rear ends, the contour lines (circles) viewed from the axial direction on the front end side are displayed on the display device, and these three circles are displayed. Overlaying and simulating, move the chucking unit at the front end and end end slightly in the X, Y, or rotation direction, and take the wood cutting center (the most efficient state) that is most difficult to get out of the field when taking out the square bar It is found and determined, fixed by a fixing device, placed on the chain of the chain transport mechanism, fed, and the log W is processed with a band saw (Patent Document 1).

  In addition, when taking out timber from bent logs, it is premised on the appearance of field stake, and by simplifying the outer diameter measurement of logs, a new scouring method for efficiently slicing product materials such as slabs and In order to provide a sawing device to perform, it is assumed that the four corners of the product material are not necessarily formed into a square shape, and the size of the product material to be ground, that is, the square size is first rounded. The end diameter of the end of the small diameter of the log is set almost uniquely. On the other hand, when grasping the outer diameter of the log, the condition where the arrow height of the log protrudes upward is set as the reference position, and the product material is ground from this state. A method and apparatus for slicing raw wood, characterized by measuring the outer diameter points of the raw wood corresponding to at least the lower corners at a plurality of locations in a discontinuous manner, and estimating the outer shape of the log. Has been proposed (Patent Document 2).

  Furthermore, the log (log) has been improved so that it can be transported and cut while holding the log (log) in a stable state, and the log (log) is horizontal in the longitudinal direction as a log cutting and conveying device designed to reduce repair costs. In a raw wood (log) transport cutting apparatus for cutting with a vertical saw blade while transporting, an endless lower roller chain that holds the log with a receiving tooth that is continuously provided while also lowering the log The lower sprocket wheel meshes with the lower roller chain and transmits the driving force to the log transport cutting device, and the lower sprocket wheel has a structure in which a separable wheel body is fixed to a fixed platen. Has been proposed (Patent Document 3).

JP-A-6-039803 JP 2001-105403 A JP 2002-370204 A

Normally, when grinding with a band saw to take out the square and beam from the log, measure the contour lines of multiple logs as described above, and overlay them from one side in the axial direction so that the maximum square can be taken "
“Center”. That is, as shown in FIG. 20A viewed from the axial direction of the log, the chain 2 of the chain feeding mechanism which is a kind of the feeding mechanism after confirming the centering state of the log W without the “field”.
A log W is placed on 5, and the log W is conveyed while being pressed with pinch rolls 20, 20,.

However, the log W usually has a large log diameter on the front side on the front side, a small diameter on the back side on the end side, and is slightly bent in the middle. As shown in FIG. Even if it is placed on the chain 25 with the intention to grind it with the band saws 26 and 26 in the posture of the log W in a posture without fat, FIG.
If there is a gap between the log W and the chain 25 as shown in FIG. 20 (B), which is an enlarged view of the M part of 0 (A), the log W will bend and rotate when placed on the chain 25. There are many.
For this reason, even when the log W is in the “centered” state, when it is placed on the chain, only the right front side of the log is in contact and is not stable, and as shown in FIG. , Stable contact with the back at 3 points. In actual work, the log W is held by the pinch rolls 20, 20,... From above, so that a “field” remains in the corner of the square bar to be ground. in this way,
When the log W is pressed by the pinch rolls 20, 20,... And the square bar is ground in the state shown in FIG. 21, "fields" are formed at the upper right and lower right of the pillar, and the product value is lowered. As shown in FIG.
When the log W is ground, the log W is fed while being pressed by a plurality of pinch rolls 20, 20,.

In addition, the log transport cutting device of the conventional sawing machine for taking out the square bar, the log input, the measurement of the contour line, the centering, the transport operation up to the chain, etc. are completed, and then the next log contour line measurement, the core Since feeding and feeding are repeated, it takes a predetermined time from the input of the log (log) to the installation on the chain conveyor, and the work efficiency is not necessarily good.

The present invention has been made in order to address the above-described problems, and is stable without rotating even when placed on a chain in a “centered” state, and without a “field” in the corner of a square member. It is an object of the present invention to provide a log posture control type feeding device and a log feeding method that can be transported by a chain transport mechanism while maintaining the “centered” state as it is. Further, a log posture control type feeding device and a log feeding method capable of performing efficient sawing processing by measuring, centering, and conveying a contour line from a raw wood in a short period of time and quickly taking out a square bar The purpose is to provide.

In order to solve the above-mentioned problem, the invention according to claim 1 is characterized in that a log posture control type supply device is
A log receiving portion (3) with a stopper inserted from the conveyor (2), a plurality of log diameter measuring devices (8), and a log that can move in the longitudinal direction (X direction) according to the length of the log W Both end gripping means (6A, 6B and 7A, 7B) and centering means for posture control by contour lines measured by the plurality of log diameter measuring devices (8), and perpendicular to the log W Two sets of log gripping and moving devices (6, 7) capable of moving alternately in the (Y direction) and one of the log gripping and moving devices (6) gripped by the log end gripping means (6A, 6B) While the log W in the centered state is fixed as it is, transferred to the conveyor (5) and placed, the other log gripping moving device (7) is gripped by the log both end gripping means and centered. The log W is fixed in that state and directly to the conveyor. And two sets of logs fixed transfer device for transferring interchanged with lifting movement device (9A, 9B), and characterized in that it comprises a.

In the invention according to claim 2, in the two sets of log gripping and moving devices (6, 7), the log W is driven to rotate so that the vicinity of the main opening, the vicinity of the end opening, and between the original opening and the end opening. Display means arranged to measure at least three contour lines of the log W by the plurality of log diameter measuring devices (8) and to project and display the measured contour lines in a superimposed manner; Posture control means for centering by projecting and displaying the both ends of the log gripping means (6A, 6B and 7A, 7B) in the circumferential direction and independently in the vertical and horizontal directions. It is characterized by comprising.

In the invention according to claim 3, the two sets of log fixing and transfer devices (9A, 9B) fix the logs W centered by the gripping means (6A, 6B and 7A, 7B) at both ends of the log. Then, while alternately transferring to the conveyor (5) and transferring to the conveyor, or these log gripping and moving devices (6, 7) are gripped by the log end gripping means (6A, 6B and 7A, 7B). It is characterized by comprising cutting means (10, 11) for cutting a plurality of locations at the bottom of each log W into a flat surface in a state in which the log W thus taken out is fixed.

Furthermore, the invention according to claim 4 is that the log W supply method allows the log W supply method to move in the longitudinal direction (X direction) according to the length of the log (6A, 6B and 7A, 7B). And centering means for posture control by contour lines measured by the plurality of log diameter measuring devices (8), and two sets that are alternately movable in a direction perpendicular to the log W (Y direction) In the state of being gripped and centered by the log gripping / moving devices (6, 7) of the above and the log end gripping means (6A, 6B and 7A, 7B) of the two sets of log gripping moving devices (6, 7). With two sets of log fixed transfer devices (9A, 9B) for fixing the log W as it is and transferring it to the conveyor (5),
In these log fixed transfer devices (9A, 9B), after one log fixed transfer device , the one log gripping moving device grips the log W by the grip means of both ends of the log, and the log W has been centered. While the log W is fixed and the log is transferred and transferred to the conveyor, the other log fixed transfer device is arranged such that the other log gripping moving device is gripped by the log end gripping means and centered, and the next log W were fixed using the attitude control type supply device configuration the log to transfer alternated to the conveyor, characterized in that it logs the transport provider.

According to the log attitude control type supply device and the log W supply method configured as described above,
Log) contour line, centering work, and transport work can be performed one after another,
Logs can be quickly processed into squares by efficiently performing a number of logs, measuring contours, centering, feeding, etc. within a short time. In addition, even if the centered log is placed on the conveyor (chain), the lower surface of the log stabilizes on the conveyor (chain), so that it does not rotate and the center of the chain transport mechanism is maintained. A log can be placed on the (chain). For this reason, when a square bar is ground from a log, it is possible to reliably take out a square bar (column material or beam material) in a state without a field. Therefore, the pillar material and the beam material processed by using the log attitude control type supply device and the log feeding method can maintain high quality without deteriorating the value.

The best mode for carrying out the present invention will be described below with reference to the drawings. FIG. 1 is a plan view showing the main part of the overall configuration of a sawing machine provided with the log posture control type supply device of the present invention and used in the log supply method, and FIG. 2 is a side view as viewed from the arrow P in FIG. It is. The log attitude control type supply device of the present invention is incorporated in the frame 1, 2 is a conveyor for inputting and supplying (hereinafter referred to as input) a log W to be sawn, and 3 is a log input from the conveyor 2. This is a log receiving portion with a stopper for receiving W, and stops the inputted log W. 4 is a transfer device for transferring the log W placed on the log receiving portion 3 with a stopper from (A line) to (B line). Reference numeral 5 denotes a chain (chain conveyor) that conveys (feeds) the log W in a direction of cutting with a band saw (not shown). Here, the A line is a line that receives a log W input from the conveyor 2, the B line is a line that measures the diameter of the log W, the C line is a line that controls the posture of the log, and the D line is a log W that is posture controlled. This is a line for feeding logs W on a chain for feeding materials. In addition, in the A line, the approximate diameter of the input log W is temporarily measured. 30 and 30 are cutting devices provided with band saws. The chain (chain conveyor) 5 transports (feeds) the log W in the direction of the cutting device (30, 30).

Next, reference numeral 6 in FIG. 1 denotes a first log gripping / moving device ( log W both-end gripping / moving device or chucking unit) provided with gripping portions (gripping means) 6A and 6B that grip the original and end of the log W. ) Hereinafter, it is referred to as the first log gripping movement device 6), and the log end gripping means (6 A, 6 B) are used when measuring the contour lines of a plurality of locations of the log W and taking out the square material from the log W Used for centering. 7 is also provided with a gripping part ( log W end gripping means 7A, 7B) for gripping the original opening and the end opening, and a second log gripping moving device (gripping moving means or Chucking unit) (hereinafter, referred to as a second log gripping movement device 7), and the log both end gripping means (7A, 7B) are used for centering when taking out the square from the log W. The first log gripping and moving device 6 and the second log gripping and moving device 7 have the same configuration as will be described later, and measure a plurality of contour lines of the log W and take out the square material from the log W. Use them alternately when centering. The log end gripping means (6A, 6B and 7A, 7B) are used for log centering (log posture control device that can take the largest square bar). The end of the log can be moved minutely in the direction and the Y direction. Further, the log W is rotated when measuring the contour line, but can be slightly rotated by a motor (6M, 7M: see FIG. 4) when centering.

1 and FIG. 2 is a log diameter measuring device for measuring several log diameters (contour lines) of the log W. The contact bar 8A and the displacement detector 8B which swing in contact with the rotation of the log W are shown. Consists of. The displacement amount detector 8B displays the displacement amount detection signal as a contour line on a display device (described later). In this log diameter measuring device 8, when the log W is rotated with the first log gripping and moving device 6 gripped (usually rotating about 360 degrees), the swinging contact bar 8A of the log diameter measuring device 8 and the A plurality of contour lines of the log W are measured and detected by the displacement amount detector 8B interlocked with the contact bar 8A. The detection and display of the contour line will be described later. Log diameter measuring device 8
Are arranged at a total of three at least one between the front and end of the log W, and between the front and end (there are four places in the embodiment of FIG. 1). 9 is a log fixed transfer device,
This is a device that grips and fixes the log W in a state of being centered under posture control by the C line, and transfers it to the chain 5 by transferring it to the D line as it is. Details of the log fixed transfer device 9 will be described later.

FIG. 3 is a simplified plan view of the two sets of log gripping and moving device portions. The first log gripping and moving device 6 includes log both end gripping means (6A, 6B) with claws for fixing and gripping the end of the log W. Similarly, the second log gripping and moving device 7 is also provided with log gripping means (7A, 7B) with claws for fixing and gripping the end of the log W. The first log gripping moving device 6 and the second log gripping moving device 7 center the log W gripped by the first log gripping moving device 6 with a C line, for example, and fix it to the log fixed transfer device (9A). The log gripping means (6A, 6B) release the log W (release the gripping state) and transfer it to the chain 5 (chain conveyor 5) on the D line, while returning from the C line to the B line, The second log gripping and moving device 7 is centered on the C line, and when the log fixing / transferring device (9B) fixes the log, the log end gripping means (7A and 7B) release the gripping state from the C line. Return to line B. Further, the log fixed transfer device (9A, 9B) alternately repeats the operation of transferring the log W from the C line to the D line and placing it on the chain 5, but details will be described later.

The configuration of the first log holding and moving device 6 and the second log holding and moving device 7 will be further described.
FIG. 4 is a front view (a view in the direction of the arrow Q in FIG. 3) of a portion including the first log gripping movement device 6 and the second log gripping movement device 7, and FIG. 5 is a side view in the direction of the arrow R in FIG. FIG.
Two sets of these log gripping and moving devices (6, 7) are installed between the frame 1A and the frame 1B, and both have the same configuration. First, the first log gripping and moving device 6 is adapted to the length of a log that is driven by a moving table 61A that moves on the lower frames of the frames 1A and 1B and a cylinder 62A that is installed on the moving table 61A and reciprocates. A moving part 63A for gripping part interval adjustment to be moved, and a moving metal fitting 65A mounted with a log gripping chuck 6A driven by a cylinder 64A installed on the moving part 63A for gripping part interval adjustment. Second
The log gripping and moving device 7 includes a moving table 71A that moves on the upper frames of the frames 1A and 1B, and a gripping unit that is driven by a cylinder 72A installed on the moving table 71A and moves according to the length of the log that reciprocates. The distance adjusting moving base 73A and a moving metal fitting 75A mounted with a log gripping chuck 7A driven by a cylinder 74A installed on the gripping part distance adjusting moving base 73A.

Note that the movement of the moving table (61A, 71A), the holding unit interval adjusting moving table (63A, 73A), the moving bracket (65A, 75A), etc. is moved by the rail guide mechanism. Further, as described above, these log both-end gripping means (grips for gripping, 6A, 7A) can be finely adjusted by moving in the horizontal and vertical directions and in the rotational direction as described above. , (B), fine adjustment is possible while looking at the contour display screen. 6M and 7M are motors for rotating the log gripping chucks 6A and 7A. It should be noted that the first and second log gripping devices (6, 7) for gripping and fixing the other end of the log W are shown in the figure, for example, the moving platform (61B, 71B) etc. is attached with “B” in the figure. Although it is shown, since it is the same as the moving table 61A (71A), the moving table 63A (73A), the cylinder 62A (72A), 64A (74A), etc., the description is omitted.

As shown in FIG. 5, the moving table 61 </ b> A (the same applies to the other moving table 61 </ b> B) moves on a rail 67 installed on the lower frame with guides 66 and 66 attached to the lower surface. As a driving means for moving the moving table 61A, a guide 6 is provided on the lower surface of the moving table 61A.
A female screw fitting 68 fixed separately from 6 is fixed, a male screw rod (ball screw) 69 is screwed together, and the male screw rod 69 is rotationally driven by a motor 60 to reciprocate.
The moving table 71A (same for other moving tables 71B) moves on a rail 77 installed on the lower surface of the upper frame with guides 76 and 76 attached to the upper surface. The moving table 7
As drive means for moving 1A, a female screw fitting 78 fixed separately from the guide 76 is fixed to the upper surface of the moving table 71A, a male screw rod (ball screw) 79 is screwed together, and the motor 70 is used to fix the male screw rod 79. By reciprocating, it is made to reciprocate.
The same applies to the movable tables (61B, 71B) and the like, but the description is omitted.

Incidentally, the moving means of the two sets of log gripping moving devices moving in the Y direction are the moving table 61A (61
The movement of B) and the moving table 71A (the table 71B) is not limited to the female screw and the ball screw, and it is also possible to provide a driving means that reciprocates by a pinion and a rack, a sprocket and a chain, or a hydraulic cylinder.

FIG. 6 is a diagram showing details of the log fixing / transferring device 9 portion of FIG. As described above, the log fixing / transferring device 9 holds and fixes the log W in a state where the posture is controlled by the log gripping moving device (6, 7) on the C line at both ends, It is a device that transfers the product to the D-line chain 5 as it is. The log fixed transfer device 9 is installed in four sets in total (first
2 sets for fixing the log W centered by the log gripping and moving device 6 and 2 sets for fixing the log W centered by the second log gripping and moving device 7 (4 sets in total) are the same configuration. Only one set is illustrated and described. The log fixed transfer device 9 includes a moving table 15 that moves on a guide 13, a cylinder 31 that drives the moving table 15 left and right, and two sets of cylinders 3 provided on the moving table 30.
2 and 32 and metal fittings (33, 3) for fixing these cylinders (32, 32) on the movable table 15
3) and a cylinder 17 that reciprocates these metal fittings 33 from the left and right (the other is hidden and cannot be seen). The cylinder 17 is installed on a metal fitting 35 fixed to the movable table 15, and is connected to a connecting tool 36 fixed to the metal fitting 33 to move the metal fitting 33 left and right to fix or release the log W. Or The cylinders 32 and 32 are provided with log chuck claws 34 and 34 that can move up and down (in and out). That is, the centered C line log W is fixed by the log fixing and transfer device 9 in the vicinity of both ends of the log W, conveyed to the D line, and placed on the chain conveyor 5. When the log W is placed on the chain conveyor 5, the log chuck claws 34, 34 are lifted by the cylinders 32, 32, and the next centered log W is placed.
Is fixed to return to the C line. The log fixed transfer device 9 is configured to reciprocate the entire moving table 15 along the guide 13 with a cylinder 31. In addition, log W of this figure
The two-dot chain line representing represents the diameter range of the log W that can be processed.

The log posture control type supply device of the present invention has the above-described configuration. Next, the steps from the introduction of the log W to the placement on the chain 5 (chain conveyor 5) will be described with reference to FIGS. To do.

FIG. 7 is a diagram showing a state in which logs W are thrown from the conveyor 2, and FIG. 7A is a simplified plan view of the two sets of log gripping devices 6 and 7 as seen from the direction P of FIG. 1. FIG. 7B is a side view seen from the direction of arrow P in FIG. 1 (FIGS. 8 to 17 are views seen from the same direction as FIGS. 7A and 7B). Therefore, description of (A) and (B) in FIGS. 8 to 17 is omitted.
(1) First, the log W is fed from the conveyor 2 to the log receiving portion 3 with a stopper. The log receiving portion 3 with a stopper is installed in the A line, and a transfer device 4 (not shown) for the log W is also installed here (FIG. 7).
(2) Two measuring devices 18 for measuring the approximate diameter of the log W are installed in the same A line of the log receiving portion 3 with stopper, and when the log W is inserted, the measuring unit of the measuring device 18 is measured. 18
a falls and the log diameter is temporarily measured (FIG. 8).
The diameter of the log W is temporarily measured by the measuring device 18 for the following reason. That is, since the diameter of the log W to be input varies from 13 to 34 cm, for example, when chucking is performed at the position of the log W having a diameter of 13 cm, the measurement range of the measuring apparatus 8 for the log W diameter becomes large. In this case, the movement distance in the X direction and the Y direction increases due to the angle for controlling the posture of the log gripping movement device (6, 7), and it takes time, resulting in poor efficiency.
For this reason, the diameter of the measuring device 18 log W is temporarily measured to prepare for the joining process.
(3) When the diameter of the log W is temporarily measured, the log receiving portion 3 with stopper is lowered by the cylinder 41 (FIG. 9).
(4) When the log receiving portion 3 with the stopper is lowered, the log W is placed on the log transfer device 4, and the log transfer device 4 is raised by the cylinder (FIG. 10). A log W is transferred to the B line. Meanwhile, the next log W is fed from the conveyor 2 to the log receiving portion 3 with a stopper (FIG. 11).
(5) The log W moved to the B line is gripped at both ends by the gripping means (6A, 6B) of the first log gripping moving device 6, and the log diameters at a plurality of locations (in this case, 4 locations) Measurement is performed by the measuring device 8, and each contour line is displayed on the display device in a superimposed manner (see FIG. 18A, but in this case, 3
One contour). At that time, the diameter of the log W is temporarily measured by the temporary measuring device 18 also in the log receiving portion 3 with the stopper (FIG. 12).
(6) The log W whose diameter has been measured by the log diameter measuring device 8 is transferred to the C line by the first log gripping and moving device 6, but the log fixing and transferring device 9A should fix the log W whose posture is controlled. Waiting. Further, the next log W that has been provisionally measured is transferred to the B line by the log transfer device 4. Then, the second log gripping and moving device 7 moves in the log feeding direction and waits to grip this log W (FIG. 13).
(7) The log W transferred to the C line by the first log gripping moving device 6 is gripped in order to obtain a square material having the best yield and no field weight by a plurality of contour lines measured and displayed on the B line. The means (6A, 6B) is slightly rotated and controlled while being independently moved up and down, left and right, and the posture is controlled so that the square material can be removed (see FIG. 18B. Log to fix the centered log W) The chuck claws (34A, 34A) of the fixed transfer device 9A come down.
Further, the next log W is measured by the B line at a plurality of log diameters. When the posture is controlled by the first log gripping and moving device 6, the second log gripping and moving device 7 is on standby. Also,
The next log W is thrown into the log receiving portion 3 with a stopper. As described above, the first log gripping and moving device 6 and the second log gripping and moving device 7 are configured to grip the log W alternately (FIG. 14).
(8) In the log W in which the posture is controlled by the C line and the square material without the field can be taken, the log chuck claws 34A and 34A of the log fixing / transferring device 9A that has come down two sets the log W. .
The diameter of the next log W is measured by the log diameter measuring device 8, and the diameter of the next log W is provisionally measured (FIG. 15).
(9) The posture is controlled by the C line, and it becomes a state where the square material without the field can be taken, and the log fixed transfer device 9
The log W fixed by the A log chuck claws 34A and 34A is transferred to the D line as it is, but it is partly located at two locations (W1, W1) on the lower side by the milling machine 10 driven by the driving device 11 on the way.
W2) is cut flat. Thereby, as shown in FIG. 19, the dock (5A
5A), a flat part is placed. In addition, a separate log fixed transfer device 9B is waiting for the log W which is gripped by the second log gripping and moving device 7 on the C line and whose posture is controlled, and the posture is controlled by the second log gripping and moving device 7. The log W is fixed by the log chuck claws 34B and 34B of the log fixing transfer device 9B. When the log W is fixed and gripped by the log fixed transfer device 9B, the second log gripping and moving device 7 releases the log W and moves to the left side of the first log gripping and moving device 6 of FIG. 1 log gripping moving device 6 moves to C line) It waits to grip log W whose diameter has been temporarily measured by measuring device 18. Thus, the log fixed transfer device (9A, 9B)
Each is arranged so as to operate together with the first log gripping moving device 6 and the second log gripping moving device 7, and is configured to fix and transfer the logs W whose posture is alternately controlled and transfer them to the conveyor 5 (see FIG. 16).
In addition, when transferring the log W to the conveyor (chain) 5 on the D line, since the two parts of the log are flat, there is no grabbing, so when it is placed on the conveyor (chain) 5, it rotates a little. And when you use it as a timber, there is no part of the field.
(10) The log W transferred to the chain 5 of the D line has the pressing roller 20 descending from above to firmly fix the log W. Further, the log W gripped and controlled by the next second log gripping and moving device 7 is the log chuck claws 34B and 34 of the next two sets of log fixed transfer device 9B.
It is fixed with B. The next log W is measured by a plurality of log diameter measuring devices 8. At this time, the first log gripping moving device 6 transferred to the D line returns and waits to grip this log W. doing. Further, the next log W is fed from the conveyor 2 to the log receiving portion 3 with a stopper (FIG. 17). The log fixed transfer device 9A also returns to the C line.

As can be seen from the above description, the log gripping and moving device (6, 7) alternately reciprocates between the B line and the C line, and the log fixed transfer device (9A, 9B) is connected to the C line and the D line. It is configured to reciprocate alternately between them.

It is also possible to cut the two lower surfaces of the log W with the milling cutter 10 at the position of the C line where the posture is controlled by the C line in the above process and the log W fixed by the log fixing transfer device 9A or 9B does not move. Is possible. In that case, the milling cutter 10 is installed below the C line and moved up and down. Further, the log gripping means for gripping both ends of the log W is used in the first log gripping moving device 6 and the second log gripping moving device 7, but these log gripping moving devices 6 and 7 are independently used. The means for centering and specifying the largest rectangle that does not protrude from any of the contour lines projected and displayed by moving and adjusting in the vertical and horizontal directions and the circumferential direction may be automatically or manually performed.

Further, reference numerals 10 and 10 shown in FIG. 2 and FIGS. 7 to 17 are both milling cutters, which are driven by the driving device 11, but for cutting a part of the bottom surface of the log W flatly. . As described above (paragraph number 0025 (9)), the centered log W is moved in the horizontal direction in a state of being fixed by the log fixing and transferring device 9, but the milling cutters 10 and 10 are made of the log W. A part is cut and flat part W1, W2 (refer FIG. 19) is formed. Since these flat portions W1 and W2 can be placed as they are when placed on the chain 5, the log W does not rotate a little.

As described above, in FIG. 19, docks 5 </ b> A and 5 </ b> A provided on a conveyor (chain) 5 are cut at two places on the lower surface by the milling cutters 10 and 10 and fixed by the log chuck claws 34 and 34 of the log fixed transfer device 9. It is a perspective view which shows the state which mounts plane part W1, W2. As described above, when the flat parts W1 and W2 are provided on the centered log W and placed on the chain 5, the log W can be processed without being rotated and can be used for taking out the square bar as it is. It is. That is, these flat portions W1 and W2 serve as reference surfaces for taking out the square bars. And in this case, if the log is pressed by the presser with a three-point support on the chain, which has been a problem in the past, even if the log rotates and grinds the square material, the log remains in a part of the corner and the commercial value is increased. The problem of lowering is gone.

The embodiment of the log attitude control type supply device and log supply method of the present invention is as described above. However, in the above embodiment, each constituent means for achieving the same purpose is changed to other means. It is also possible to implement. For example, the log gripping and moving device for measuring the contour line and simulating to take out the largest square bar uses two log gripping devices, the first log gripping and moving device 6 and the second log gripping and moving device 7, Measure the contour line with a set of log gripping and moving devices,
Further, a simulation for taking out the largest square member may be performed. Further, as the log diameter measuring device 8, a measuring device using a non-contact type laser or an ultrasonic measuring device may be used. Furthermore, although a part of the milling machine 10 is cut flat, a moving device may be provided so that the milling machine 10 can be moved in the vertical direction so as to cut the entire lower surface flat. In addition to milling, the lower surface processing may be a circular saw, a band saw, or the like. Alternatively, the entire surface may be processed flat. In addition to the chain transport mechanism, a wire transport mechanism or the like can be used as the transport mechanism.

It is a top view which shows the principal part of the whole structure of the sawing machine used with the posture feeding type log supply apparatus of this invention, and the log transfer method. It is a P arrow front view of FIG. It is a simplified top view of a 1st log gripping movement apparatus and a 2nd log gripping movement apparatus. FIG. 4 is a view taken in the direction of arrow Q in FIG. 3 and shows a state in which a log received by the log receiving portion from the conveyor is gripped by the first log gripping moving device. FIG. 5 is a view taken in the direction of arrow R in FIG. 4 and shows the first log gripping and moving device and the second log gripping and moving device. This figure is also a diagram showing that the first log gripping moving device and the second log gripping moving device are moved crossing each other. This figure is a front view of a log fixing / transferring apparatus, and shows a configuration in which a log is fixed, released, or a log is fixed and moved. FIG. 7A is a plan view of two log holding and moving device portions, and FIG. 7B is a view from the direction of arrow P in FIG. FIG. 8 is a side view seen (the same applies to FIGS. 8 to 17). It is a figure which shows the state which supplied the log from the conveyor, Comprising: It is a figure which shows the state which is temporarily measuring the diameter of the log with a measuring apparatus. It is a figure in the case of lowering a log receiving part with a stopper after log diameter measurement. After the log receiving portion with a stopper is lowered, the log is placed on the log transfer device and is shown in a state of being raised by the cylinder. It is a figure which shows the state which throws in the next log from a conveyor to the log receiving part with a stopper, while a log transfer apparatus moves to a B line. The log moved to the B line is a diagram showing a state in which both ends thereof are gripped by the gripping portion of the first log gripping moving device and the log diameters at a plurality of locations are measured by the log diameter measuring device. These measurement results are displayed as a contour line on the display device. At this time, the diameter of the log W is temporarily measured by the temporary measuring device even in the log receiving portion with a stopper. It is a figure which shows the state which waits in order to fix the log by which a log fixed transfer equipment is shown to the state where the log by which the diameter was measured is transferred to C line by a 1st log holding | gripping movement apparatus. . In addition, a state in which the second log gripping moving device is changed and is waiting to grip the log is shown. It is a figure which shows the state before the log measured by the log diameter measuring apparatus while the log grasped by the 1st log grasping movement apparatus shows the state by which it is transferred to C line and attitude control is carried out. A state in which the second log gripping and moving device is waiting at the position of the log diameter measuring device is also shown, and a state in which the next log is supplied to the stopper-equipped receiving portion is also shown. FIG. 5 is a view showing a state in which a log whose posture is controlled by a C line and in which a square material without a log can be taken is fixed by a log chuck claw of the log fixing / transferring device. Moreover, the state by which the next log is measuring the diameter with the log diameter measuring apparatus is also shown. It becomes a state that can take the square material without the field, and the log fixed by the log chuck claw of the log fixed transfer equipment is transferred to the D line as it is, and the lower part of the two parts are flattened by the cutting means on the way It is a figure which shows the log by which the state cut | disconnected and mounted in the chain, and the 2nd log gripping apparatus 7 of the following, and the attitude | position control by the C line are carried out. Further, it is not shown that the next log diameter is measured by a log diameter measuring device. The log is placed on the D-line chain, the pressing roller descends from above, and the log is firmly fixed, and the log whose posture is controlled by the first log gripping movement device is fixed by the log fixed transfer device It is a figure which shows the state which is doing, and the state which the 2nd log holding | grip movement apparatus has returned to the position of the log from which a diameter is measured. FIG. 18A shows a state in which the contour line measured by each log diameter measuring device is displayed as an axial contour line superimposed on the display device, and FIG. 18B shows the contours displayed in a superimposed manner. It is a figure of the state centered by simulating so that the largest square can be taken by moving a line in the X direction, the Y direction, and the rotation direction. It is a perspective view which shows the state which mounts the plane part W1, W2 on the dock provided in the chain by fixing the log which two places of the lower surface were cut by the mill with the log chuck | zipper claw of a log fixing device. FIG. 20A is a cross-sectional view when placing a log in a centered state when taking out a square bar from a conventional log on a chain of a feeding mechanism, and FIG. 20B is a cross-sectional view of FIG. It is an M section enlarged view. It is sectional drawing just after mounting the log of the centering state at the time of taking out a square from the conventional log on the chain of a feeding mechanism. It is a front view at the time of feeding material, pressing the log of the centering state at the time of taking out a square material from the conventional log with a pinch roll.

DESCRIPTION OF SYMBOLS 1 Frame 2 Log feeding conveyor 3 Log receiving part with stopper 4 Log transfer device 5 Conveyor (chain)
5A dock 6 first log gripping moving device 6A, 6B log both ends gripping means 61A moving table 63A gripping unit interval adjusting moving table 65A moving bracket 7 second log gripping moving device 7A, 7B log both ends gripping means 71A moving table 73A Moving table for gripping part interval adjustment 75A Moving bracket 8 Log diameter measuring device 9 (9A, 9B) Log fixed transfer device 10 Miller 11 Drive device 13 Guide 15 Moving table 18 Temporary measuring device 31 Cylinder 32 Cylinder 33 Bracket 34A Log chuck claw 34B Log Chuck Claw 20 Pinch Roll (Log Presser)
W1, W2 plane part

Claims (4)

A log receiving portion with a stopper to be put in from a conveyor, a plurality of log diameter measuring devices, a log end gripping means capable of moving in the longitudinal direction (X direction) according to the length of the log, Two sets of log gripping and moving devices provided with centering means for posture control by contours measured by a log diameter measuring device and capable of moving alternately in a direction perpendicular to the logs (Y direction), while the logs gripping movement device is mounted to transfer the log in a state of being centered by holding of logs both ends gripping means as it is to the fixed conveyor, the other logs gripping mobile device of logs both ends gripping means And two sets of log fixing and transfer devices that fix the logs that are gripped and centered in that state and transfer the logs as they are to the conveyor as they are. Log attitude control Supply device. In the two sets of log gripping and moving devices, the logs are driven to rotate and are arranged near the original mouth, the vicinity of the end mouth, and between the former mouth and the end mouth, and the logs are measured by the plurality of log diameter measuring devices. Display means for measuring at least three contour lines and projecting and displaying a plurality of the measured contour lines, and the both-end gripping means for both ends holding the log are moved vertically and independently. 2. The log posture control type feeding device according to claim 1, further comprising posture control means for moving and adjusting left and right, projecting and displaying, and centering. While the two sets of log fixed transfer devices fix the logs gripped and centered by the gripping means and alternately transfer them to the conveyor and transfer them to the conveyor, or these log fixed transfer devices are connected to both ends of the log. the gripped centering been logs in a fixed state in part gripping means, respectively claim 1 or claim 2, characterized in that it comprises a cutting means for cutting the flat surface a plurality of locations of the bottom of the log Log posture control type feeding device. Log both-ends gripping means that can move in the longitudinal direction (X direction) according to the length of the log, and centering means for posture control by contour lines measured by the plurality of log diameter measuring devices, and Two sets of log gripping and moving devices that can be moved alternately in a direction perpendicular to the log (Y direction), and a state of being gripped and centered by the log end gripping means of the two sets of log gripping and moving devices. Two log fixed transfer devices that fix the logs as they are and transfer them to the conveyor. These log fixed transfer devices have one log fixed transfer device, and the one log gripping and moving device has a log. While the log W is gripped by both ends gripping means, the log is fixed, the log is fixed, the log is transferred and transferred to the conveyor. next There are centered gripped by the log end portions gripping means Using the attitude control type supply device configuration the log to log the fixed transport alternated to the conveyor, the method of supplying the log, characterized in that the supply transport the logs.

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