JPH0351102A - Centering and supplying apparatus for timber - Google Patents

Abstract

PURPOSE:To make the re-chucking of a predetermined square lumber unnecessary, and enable sawing lumber to be carried out once and for all by rotating a lumber at 90 deg. and rising it up after performing the first centering, and then performing the second centering, and supplying a lumber in which each centering is preset-held on to lumber forwarding chucks on the sawing extension line. CONSTITUTION:A first centering drive member 15 detects the curves of left and right sides of the lumber W by two laser beams which trace on the lumber W, and a first centering is conducted in moving chucks 12, 13 in left and right directions in accordance with the degree of the curves. The upper part of a rotator 10 rotates in the direction of sawing line while the lumber W is being chucked by the lumber chucks 12, 13, and stops at the rotated position of 90 deg.. In this state, the rotator 10 is made to move in the left side only at rotating radius (r) and the center (0) is aligned to the original position, so that the second centering position is determined. After that, the chuck-set lumber W is sent on to the sawing orbit, thereby splitting off log lumbers or the like as well as square lumbers once and for all by once supply chucking.

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to a centering material feeding device, and more specifically, when sawing logs into square materials using a twin band saw or a twin circular saw, the present invention relates to a centering material feeding device. The present invention relates to a centering material feeding device that feeds material to a bandsaw machine while holding preset centering positions in the X-Y direction, that is, two horizontal and vertical directions.

[Prior Art] A conventional device for centering logs on a material supply truck is described in, for example, Japanese Patent Laid-Open No. 58-110201.

In this conventional technology, a support arm is attached to the front end of a sliding frame that can move back and forth and up and down, and a support arm is attached to the front end of the sliding frame, and the supporting arm is equipped with a placing part on the top surface of the sliding frame. Attach a positioning rod located at the front end of the front end and slightly rearward of the mounting section so that it can move up and down and rotate, and attach a pressure plate horizontally to the upper end of the rod.By rotating the rod, the pressure plate When the press plate is rotated forward, the press plate is positioned above the mounting portion.

[Problem to be solved by the invention] Generally, when sawing wood with a twin band saw or a twin circular saw, the source of the wood is first examined in order to obtain the product square timber with the best material yield from logs or roughly sawn square timbers. After optimally performing horizontal centering and vertical centering on each grain surface of the saw, the wood must be chucked and set on the sawing track and fed.

However, the prior art disclosed in the above-mentioned publication involves slightly moving the base and end of the wood individually in the horizontal direction on the sawing track, and relying on the human eye to center the vertical burning line of the wood using a twin bandsaw as a guide. After centering the vertical firing line for the first time, the log material was sawed once to make drum material, and then this drum material was rotated 90 degrees to center the line for the second time. The product is obtained by cutting the wood a second time.

Therefore, in this prior art, before the first vertical burning operation of the wood, the first vertical burning line is centered, and then the first longitudinal burning of the wood is performed to produce the drum material. After that, the drum material is returned to the place where it was before the first vertical firing.

After that, by removing the chuck from the above-mentioned drum material and dropping it onto a trolley, the wood changes direction by 90 degrees, and after centering the second vertical firing line, it is chucked and the second vertical firing is performed. It is.

Therefore, it is necessary to re-chuck the wood between the first and second vertical burning operations, which poses a problem in that the workability is significantly poor.

In order to eliminate the above-mentioned problems, this invention performs centering in two directions (horizontal and vertical) on each end face of the wood, and after holding preset centering positions in these two directions. The purpose of the present invention is to make it possible to saw and split square timber from logs etc. at once by chucking and setting the timber on the sawing track and feeding the timber, by using the timber feeding chuck only once.

[Means for Solving the Problems] An object of the present invention described above is to provide a device for mechanically transporting wood to a sawing extension line and resetting sawing, and to provide a rail laid in a direction perpendicular to the sawing extension line. A main movable piece that engages with the rail and moves, a sub movable piece that engages with the rails on both sides of the main movable piece, and an elongated frame connected to straddle these sub movable pieces. a main movable piece driving member for moving the main movable piece along the rail; and a second centering member provided between the main movable piece and the surface of the frame on the sawing extension line side. A driving member, an arc-shaped guide dovetail groove (or guide rail) formed on the longitudinal side of the frame, and a substantially semicircular guide dovetail groove (or dovetail guide rail) engaged with the guide dovetail groove (or guide rail). a long frame-shaped rotating body having a guide dovetail groove (
or a rotating body driving member disposed between the frame body and the rotating body for up-and-down rotation along a guide rail);
A pair of wood chucks that protrude from the outer surface of the rotating body and are openable and closable in the length direction of the rail, an opening/closing driving member disposed between each of these wood chucks, and a wood chuck that is captured by each of the wood chucks. The rotating body and the wood chuck are disposed in the state of the rotating body in order to perform first centering of the wood by displacing the wood in the longitudinal direction of the rail using a first centering line formed by a laser beam line or the like as a guide. Second centering of the wood is performed by a first centering drive member disposed between one of the wood chucks and a second centering line using a laser beam line or the like with the rotating body in an upright state. This is achieved by providing the second centering drive member for each.

[Function] The centering material supply device of the present invention supplies the wood to be centered between the pair of wood chucks opened by the opening/closing drive member, and then captures the wood between the wood chucks by the opening/closing drive member. , by driving the first centering drive member to saw the base and end sides of the wood individually, and sliding the rotating body on the rail in the direction of the extension line via the main movable piece, the sub movable piece, etc. The first centering can be performed by slightly displacing the wood using a first centering line set in advance using a laser beam or the like as a guide.

Next, the rotary body to which the wood chuck is attached is rotated by 90° and erected by the rotary body driving member via the guide rail that is engaged in the guide dovetail groove of the frame body.

After that, the rotating body in the upright state is slightly displaced in the direction of the rail by the second centering drive member, and after positioning, the second centering line formed by a laser beam line, etc. is used as a guide to move the rotating body in the left and right direction of the wood end surface. Centering or second centering can be performed.

When both the first and second centering are completed, the main movable piece drive member is driven with this state preset, and the frame is moved through the main and sub movable pieces on the rail laid in the direction orthogonal to the sawing extension line. By moving the body, the centered wood is moved by a predetermined dimension from the centering position to the sawing position.

This will now be vertical (up and down) on each end surface of the wood.
In addition, each centering in the horizontal (left and right) direction, that is, the first and second centering, can be automatically executed before sawing and splitting the material, and each centering state can be passed to the material feeding truck while maintaining the preset state. can.

[Example] First, an example of the arrangement of the basic components of this invention will be explained.

A rail 1 is laid as shown in FIG. 1 in a direction perpendicular to the sawing extension line J shown in FIG.
The main movable piece 2 engages as shown in FIG. 12 and moves from the state shown in FIG. 12 to the state shown in FIG. 13 and from the state shown in FIG. 16 to FIG. 17; Sub-movable pieces 3.3 are engaged with the rails l on both sides of the main movable piece 2 as shown in FIGS. 1 and 2 (J and in FIG. 2), and these sub-movable pieces 1st across 3 and 3
As shown in FIG. 2 and FIG. 2 (ω and in FIG. 2), connected elongated frames 4.5 are arranged as shown in each of the above figures.

And an oil cylinder, etc. for moving the main movable piece 2 along the rail l from the state shown in FIG. 12 to the state shown in FIG. 13, and from the state shown in FIG. 16 to the state shown in FIG. 17. and a second movable piece drive member 6, such as an oil cylinder, provided between the main movable piece 2 and the surface of the frame 4 on the side of the sawing extension line J, as shown in FIG. 2(b).
and the centering drive member 7 are arranged as shown in each of the above figures.

Further, arc-shaped guide dovetail grooves (or guide rails) 8 are formed on the longitudinal side of the frame 5 as shown in FIGS. 19 to 21, and the guide dovetail grooves (or guide rails) 8 are 19 to 2 of the almost semicircular arc shape
Figures 1 and 2 respectively include a rotating body 10 in the form of an elongated frame, as shown in Figures 19 to 21, which has a guide rail (or dovetail groove) 9 as shown in Figures 1 and 2). Arrange as shown.

Furthermore, in order to raise and lower the rotating body lO along the guide dovetail groove (or guide rail) 8 as shown in FIGS. 9 to 11 and FIGS. 19 to 21, respectively. A rotating body driving member 11 such as an oil cylinder, which is disposed between the frame body 5 and the rotating body IO as shown in FIG. 2), FIGS. 19 and 20, and the rotating body 1
A pair of wood chucks 12 and 13 are provided as shown in FIG. An opening/closing driving member 14 such as an oil cylinder, which is disposed as shown in FIGS. 3 to 7, is disposed between H as shown in the drawings.

Further, the wood W captured by each of the wood chucks 12 and 13 as shown in FIGS. 5 to 7 is moved in the longitudinal direction of the rail 1 in the state of the rotating body 10 as shown in FIGS. 6 and 9. The rotary body lO and the wood chuck 12 are displaced in the direction of the arrow to perform the first centering of the wood W along the first centering line by a laser beam line or the like as shown in FIG. ．． The first centering drive member 15, such as an oil cylinder, is disposed between one of the wood chucks H as shown in FIGS. 3, 7, and 18, respectively.
12 and 23 with the rotating body 10 in the upright state.
As shown in the figure, the centering according to the present invention is provided with the second centering drive member 7 for performing the second centering of the wood W along the second centering line 0,0. The material feeding device is configured.

Each component forming the basic configuration will be described in detail below.

As shown in Figures 1 to 2 (C1 and Figures 8 to 21), the rail l has a potbelly-shaped cross section with a constriction in the center, and is located on the side opposite to the sawn extension line J side. A fixed member 16 is attached to which the end of the main movable piece driving member 6 is attached.Furthermore, at the portions that divide the entire length of this rail l into three, there are stoppers 17 that the main movable piece 2 comes into contact with as it moves. .IT is provided.

The main movable piece 2 and the sub movable piece 3.3 both have a C-shaped cross section as shown in FIG. 2 (C1 and FIG.
The structure is such that it fits into the frame and slides along its length, making it difficult for it to fall off.

As shown in FIGS. 1 to 2(C), the frame 4.5 is attached to the above-mentioned main movable piece 2 and sub movable piece 3, and is made of elongated shaped steel.

Moreover, the frames 4 and 5 are connected and integrated.

As shown in FIGS. 8 to 14, the main movable piece driving member 6 is a fluid pressure mechanism such as an oil cylinder, and the cylinder side is pivotally connected to the fixed member 16, and the piston is attached to the main movable piece 2. .

The first centering drive member 7 is also a fluid pressure mechanism such as an oil cylinder, and the cylinder side is attached to the frame body 4 and the piston is attached to the main movable piece 2, respectively.

Both moving members 6,7 are arranged in series on the outside of the frame 4.

A semicircular (arc-shaped) guide dovetail groove 8 is provided inside the end of the frame 5.

As shown in FIGS. 3 to 7 and 18 to 21, the rotating body 10 is a rectangular frame having semicircular (arc-shaped) guide rails 9 formed on its side surfaces that engage in the guide dovetail grooves 8. 18
and a wood chuck 12 that protrudes from the top surface of the rectangular frame 18 and can be opened and closed in the length direction thereof. +3.

Note that the wood chuck 13 is constructed to be slightly longer than the other wood chucks 12, and these wood chucks 12 and 13 are arranged on the sides of the rectangular frame 18 with these substrates 12a and 13a as shown in FIG. The wood chucks 12 and 13 are slidably fitted into the long grooves 19a and 19a of the pair of groove plates 19 and 19, and the wood chucks 12 and 13 protrude from the guide groove 20, and the one groove plate 19, the wood chuck 13, and the wood chuck 13 are fitted in a sliding manner.
A second centering drive member 15 and an opening/closing drive member 14 are pivotally mounted between and the wood chuck 12, respectively.

As shown in FIGS. 3 and 18 to 21, the rotating body driving member 11 is constituted by a fluid pressure cylinder mechanism, and the cylinder side is attached to the side surface of the frame body 5, and the piston is pivoted to the side surface of the rotating body 10. The rotating body IO is guided by a dovetail groove 8 and a guide rail 9 so that it can rotate 90 degrees from horizontal to vertical.

As shown in FIGS. 15 to 17, two of the above structures are arranged side by side at a constant interval, and a conveyor 21 for conveying log-shaped wood is disposed between them.

In each figure, the reference numeral 22 denotes a material feeder that chucks the centered wood W and moves the wood W on the rail 23 in parallel with the sawing extension line l; 22^ is a chuck claw; 24.25 are band saw teeth.

Next, the operation of the centering material feeding device of the present invention will be explained.

The wood W is conveyed in a scissors manner by the conveyor 21, and as shown in Figs.
9 and 15, in standby mode, the main movable piece drive member 6 is off, the first centering drive member 7 is on, and the main movable piece 2 is on the fixed member. It is located at a position where it abuts against the stopper 17 on the 16 side.

That is, the frame body 4.5 is at the position where it has moved furthest toward the fixing member 16 on the rail l.

At this time, the opening/closing drive member 14 and the first centering drive member 15 are both in the ON state, the wood chucks 12, 13 are in the most open state, the rotating body driving member 11 is in the ON state, and the rotating body 10 is in the horizontal state.

Here, "on" refers to a state in which the piston of the fluid pressure mechanism, which is a driving member, protrudes from the cylinder, and "off" refers to a state in which the piston enters the cylinder, but the same definitions apply below.

When wood W is supplied from the conveyor 21 between the wood chucks 12 and 13 as shown in FIGS. 8 and 9, the opening/closing drive member 14 is turned off and the wood chuck 12 is moved to the wood chuck 13
Chuck it by moving it to the side as shown in FIGS. 5, 9, and 15. In this case, the wood W is simultaneously chucked in its original state and its undeveloped state.

In this chucking state, the first centering drive member 15 traces the wood W (not shown) by a known means.
The left and right bends of the wood W are detected using a laser beam from a book, and the results are calculated by a computer, and according to the amount of bend, the front and rear first centering drive members 15.1 are paired as shown in FIG.
Turn on and off 5 and chuck 12. First centering is performed by moving N to the left or right as shown in FIG.

That is, as shown in FIGS. 9 and 22, the wood W
Determine the first centering position according to (1) of the first centering line using a laser beam line or the like in order to obtain a product square lumber with the best material yield from the wood W having a large curve and original to end diameter ratio.

This first centering position is preset and held by maintaining the amount of protrusion of the piston of the first centering drive member 15 from the cylinder.

The dimensions indicated by the dotted line in Figure 22 are the rotation center O of the rotating body 10.
is the turning radius from .

Next, by turning on the rotating body driving member 11, the tenth
As shown in FIGS. 11 and 20, the rotating body 10 has its upper part facing the wood chuck 12 in the direction of the sawing line.
The lumber W is rotated while being chucked at H, and the amount of rotation is detected by the limit switch LS, and the lumber stops at a position after 900 rotations as shown by the dotted line in FIGS. 11 and 22.

In this state, the rotating body 10 is moved to the left from the dotted line position to the solid line position in FIG. 23 by the rotation radius r, and after aligning the center 0 with the original position, a second The bending of the wood W is detected using the centering line 0.0 as a guide, and the result is calculated by a computer, and a pair of second centering drive members are moved according to the amount of bending as shown in FIGS. 12 and 16. 7
Turn on and off to find the second centering position in the vertical direction that provides the best material collection.The second centering position is set using the second centering line 0,0, which is created by two laser beams, as a guide. decide.

In this state, as shown in FIG. 23, the sawing position is 0.
, 0 to complete the second centering.

Note that when obtaining a product with a rectangular cross section, the execution of the first and second centering is the same as that shown in FIGS. 22 and 23.

After this, when the main movable piece driving member 6 is turned on as shown in FIGS. 13 and 17, the frame body 4.5 slides to the right on the rail l, and the main movable piece 2 moves to the other side. Stopper 1
Move to the right until it touches point 7.

The chucking center of the material supply vehicle 22 is located in this direction of movement, and the chuck claw 22^ is located at the center of the wood removal section.

22A, and with this center distribution, the wood W was chucked to the band saw 24.25 set at the width of the cutting width, that is, the first centering line, the ■ interval and the second centering line, the 0,0 interval. By moving the material supply vehicle 2z on the rail 23, the sawing position is changed to ■ or 0,0.
The sawing is done from the original side or the uncut side to each opposite side.

After this, the wood W held between the chuck claws 22^, 22^ is returned to the material supply position by the material supply vehicle 2z and rotated 90 degrees, or the chucking claw 22A of the material supply vehicle 22 is rotated at the initial sawing completion position. 0, 0 or ■ by rotating the wood W by 90° using 22A.

(2) Saw the wood by changing the spacing of the band saw 24 and 25 to the sawing position and sawing the square lumber.

Note that if the chucking center of the wood supply vehicle 22 does not have the function of rotating 90 degrees, the wood chuck 12.
By rotating the material by 0° and then passing it to the chucking center of the material supply vehicle z2, sawing at the above-mentioned sawing position can be performed.

After centering the first piece of wood W and passing it to the chucking center of the material supply vehicle 22, the main movable piece drive member 6 is turned off as shown in FIG. 14 and returned to its original position as shown in FIG. Then, the conveyor 21 moves by a predetermined amount, and the lumber W is supplied between the lumber chucks 12 and 13, which are in the standby state shown in FIG. 8, and the next lumber W is centered in the same procedure as described above.

[Effects of the Invention] Since the present invention is configured as described above, it produces the effects described below.

In the centering material feeding device of the present invention, the wood chuck that has captured the wood is displaced by the first centering drive member using a first centering line formed by a preset laser beam line, etc. as a guide, and the wood chuck is moved to remove the wood. After performing the first centering, the rotary body equipped with the wood chuck is rotated 90 degrees by the rotary body drive member to stand up, and the second centering drive member is used to move the laser beam line etc. in the same manner as above. A second centering is performed along a second centering line according to the sawing method, and then the wood with the first and second centerings preset and held is fed to a material feeding chuck that is waiting on the sawing extension line. Since it has been made possible, the horizontal and vertical of each end surface of the wood W at the base and end, that is, X-Y
It is possible to feed and chuck material for sawing while the centering of each direction is maintained as a preset. Therefore, a predetermined square material from a log or roughly sawn material can be sawed in one fell swoop without having to re-chuck it. Therefore, compared to the conventional branch body, the time required for sawing can be halved, and the workability of sheet sawing can be greatly improved.

[Brief explanation of drawings]

Each of the figures shows one embodiment of the present invention, and Fig. 1 is a plan view showing the basic configuration of the centering material feeding device, and Fig. 2 (also a plan view of a single unit, the second appearance) is Similarly, FIG. 2(C) is a side view, FIG. 2(C) is an enlarged cross-sectional view of the main movable piece, FIG. 3 is a perspective view of the rotating body, and FIGS. 4 to 7 are partially cropped views showing the operation of the chuck of the rotating body. Side views with parts removed, Figures 8 to 14
Each figure is a side view of the centering material supply device showing the operation from chucking the wood to the delivery of the first and second core materials to the material supply truck. Figures 15 to 17 all show the same operation. FIGS. 18 to 21 are all perspective views showing the operation of the rotating body, and FIGS. 22 and 23 are explanatory views of centering and wood removal. 1...Rail 10...Rotating body 2...Main movable piece 11...Rotating body driving member 3...Sub movable piece 12. H... Wood chuck 4.5... Frame body 14... Opening/closing drive member 6... Main movable piece drive member W... Wood 715... Centering drive device 8... Guide dovetail groove (Guide rail) 9... Guide rail (guide dovetail groove) J... Sawing extension line

Claims (1)

[Claims] A device for mechanically transporting wood to a sawing extension line and setting it for sawing and splitting, which includes a rail 1 laid in a direction perpendicular to the sawing extension line J, and a main movable piece that moves by engaging with this rail 1. 2, sub movable pieces 3, 3 provided to engage with the rails 1 on both sides of the main movable piece 2, and elongated frames 4, 5 connected across these sub movable pieces 3, 3, A main movable piece drive member 6 for moving the main movable piece 2 along the rail 1, and a main movable piece drive member 6 provided between the main movable piece 2 and the surface of the frame 4 on the sawing extension line l side. 2, a centering drive member 7, an arcuate guide dovetail groove (or guide rail) 8 formed on the longitudinal side of the frame body 5, and a substantially semicircular guide dovetail groove (or guide rail) 8 that engages with the guide dovetail groove (or guide rail) 8. A frame-shaped rotating body 10 having an arc-shaped guide rail (or dovetail groove) 9; and this rotating body 10 is connected to the guide dovetail groove (or guide rail).
A rotating body driving member 11 is disposed between the frame body 5 and the rotating body 10 in order to raise and rotate along the rotation axis 8; a pair of wood chucks 12 and 13 that can be opened and closed;
An opening/closing drive member 14 disposed between each of these wood chucks 12 and 13 and the wood W captured by each of the wood chucks 12 and 13 are preliminarily moved in the length direction of the rail 1 in the state of the rotating body 10. In order to perform first centering of the wood W by displacing the set first centering line as a guide, the rotating body 10
A first centering drive member 15 disposed between one of the wood chucks 12 and 13 and a second centering line set in advance with the rotating body 10 in the upright state. and the second centering drive member 7 for performing second centering of the wood W as a guide.