JPH0761641B2 - Wood sawing equipment - Google Patents

Description

The present invention relates to a wood sawing device for centering and sawing wood.

(B) Conventional technology Conventionally, a wood sawing device in which a posture of a bent wood is set by a posture setting device and is transferred to a material feeding stand by a glazing device is already known from Japanese Patent Publication No. 60-43281. There is.

(C) Problems to be Solved by the Invention The known wood sawing device is a method in which hooks at upper and lower ends are expanded and contracted to grasp wood of an attitude-set wood, and in this state, the wood is moved toward a material feeding table. Therefore, the mechanism for activating the hook part and the moving mechanism are complicated, and in general, wood often bends in the north-south direction during the growth process, but there is a part that bends in the east-west direction as well. There was no

(D) Means for Solving the Problems The wood sawing device according to the present invention has a detector 5 for detecting the direction of the wood on the side of the material receiving stand 1 on which the wood to be sawn is placed and fixed. , And a centering device 2 provided with a tree turning means and capable of advancing and retracting on a side portion of the material receiving stand 1 for mounting and fixing the wood at least at intervals in the length direction of the wood. A pair of supply units 27 are provided which move in the horizontal direction orthogonal to the lengthwise direction of the wood toward the centering device 2 and are arranged on the same line as the centering device 2 to hold the wood laterally. A supply device 3 that includes a pair of clamping arms 30 and 30 and that clamps the wood centered in the north-south direction by the centering device 2 by the pair of clamping arms 30 and 30 is arranged. A fine adjustment device 4 is attached, and the supply base 27 is horizontally moved by the fine adjustment device 4. After the fine adjustment by the fine adjustment device 4 is completed, the fine adjustment of the centering in the east-west direction is performed on the wood sandwiched by the pair of sandwiching arms 30, 30 by finely moving it in the direction. The feeding table 27 of the feeding device 3 with the centering device 2 retracted.
Is moved forward and the wood is conveyed to above the material receiving stand 1.

(E) Action First, the wood is placed on the supply table 27 of the supply device 3 and is moved via the supply table 27 to the centering device 2 located at a predetermined functional position. The centering device 2 rotates the wood by means of the wood turning means provided, whereby
Center in the north-south direction. When the centering of the wood in the north-south direction is completed, the pair of clamping arms 3 provided in the supply device 3
The wood is clamped laterally by 0 and 30. In this state, the fine adjustment device 4 attached to the supply device 3 finely moves the supply base 27 in the horizontal direction to center the wood in the east-west direction. This completes the centering of the wood in the north-south and east-west directions. After that, the centering device 2 is retracted from a predetermined functional position and the supply table 27 is moved forward to convey the wood onto the material receiving table 1.

(F) Embodiments An embodiment of the present invention will be described with reference to the drawings. The present apparatus includes a material receiving stand 1, a centering device 2, a supply device 3, a fine adjustment device 4, and an upper part of the centering device 2. Alternatively, the material receiving base 1 comprises a detection device 5 for detecting a bend by a laser beam or the like facing the lower root side, and the material receiving base 1 is a material feeding base or a saw that travels between a pair of left and right band saws or circular saws or sawsaws. In the method of running the vehicle, the table does not move, and has a plurality of supports 6 that support the wood at intervals (however, the illustrated example is a material feeding table).

In the centering device 2, a swing frame 9 having a projection 9a at its tip is pivotally supported on a shaft 8 on a pedestal 7 so as to be vertically swingable, and the sprocket 10, 11 is pivotally supported on the swing frame 9, and the tip is provided. A chain 12 is wound around the sprocket 10 on the side, and a chain 14 is stretched between the other sprocket 11 and the sprocket 13 of the shaft to form a tree turning means,
The cylinder 15 is connected to the lower end of the swing frame 9 so that the swing frame 9
Is vertically oscillated between a position shown by a solid line in FIG. 1 and a position shown by a chain line below the driven sprocket 16 mounted on the shaft 8 is a sprocket 18 of a motor 17.
Driven by the counter shaft 19 via the sprocket 20, chain 21, sprocket 22 and chain 23, which causes the chain 14 to rotate and the sprocket 10 of chain 12 to have a small diameter sprocket 10 attached thereto as shown in FIG.
It is rotationally driven in the same direction by a chain 10b stretched between a and a small-diameter sprocket 11a attached to the sprocket 11.
The upper middle part of the chain 10b is pressed by a semi-circular guide rail 10c so as not to obstruct the wood to be fitted, and the chain 10b is tensioned.

As shown in FIG. 2, at least one pair of centering devices 2 are provided at intervals in the length direction of the wood (parallel to the material receiving base 1).

Further, as shown in FIG. 2, the supply devices 3 are provided at two inner positions of the centering device 2, and each supply device 3 has a third position.
As shown in FIG.
A pair of rails 25 and 25 orthogonal to each other, a supply base 27 having wheels 26 rolling on the rails 25 and 25, and a base portion having a rotatable base as shown in FIG. A pair of left and right clamping arms 30 and 3 fixed to the shafts 28 and 29 and curved inward
0, and the holding surfaces of the holding arms 30, 30 are provided with sawtooth-shaped irregularities 30a ... As shown in FIG. Claws are provided, one of the holding arms 30 is connected to the cylinder 31, and the gears 32, 32 fixed to the support shafts 28, 28 are meshed with each other. Reference numerals 30 and 30 change to the lying open posture shown in FIG. 4 and the standing wood holding posture shown in FIG. 3, and the receiver 35 vertically suspended on the supply table 27 is vertically movable as will be described later. Since the drive arm 37 having the long hole 33 and integrally supported with the shaft 36 rotatably supported has the upper end thereof loosely fitted in the long hole 33, the arm 38 protruding from the shaft 36 is formed by the cylinder 39. When rocked, the drive arm 37 advances and retreats the supply table 27 along the rails 25, 25, and the tip of the supply table 27 is swung. Wrapper
An extruded body 41, which is received by 40 and urged upright by a winding spring 40a, is pivotally supported.

A base plate A having the same height as the supporting members 6 ... Is fixed to the middle of the sandwiching arms 30, 30 of the supply table 27. Each support 6 ...
And a plurality of base plates A having the same height (the top surfaces are on the same horizontal plane) and on a line parallel to the material receiving table 1 as shown in FIG.・ ・
Is attached.

Further, in the fine adjustment device 4, as shown in FIGS. 3 and 5, a fixed receiving member 42 is integrally hung on the supplying base 27, and an upper portion of the receiving member 35 is provided with a guide groove 43 of the supplying base 27. Is slidably fitted to the cylinder and is connected to a cylinder 45 supported by the fixed money 42.
When actuating 45, the receiver 35 is held in a fixed posture by the cylinder 39 via the drive arm 37,
The supply base 27 moves back and forth to be finely adjusted.

Next, the wood sawing process will be described. A detection reference line is drawn on the base plate A by the laser beam of the detector 5, and the holding arms 30 and 30 are laid down. When it is placed on the supply table 27 of No. 3 and pushed in, the chain 14 constituting the centering device 2 takes over and forcibly conveys it, and the chain 12 of the sprocket 10 receives it and rotates in the direction of pushing up, so it is automatic. And it stops between the two, and even if it passes, it is caught by the projection 9a.

Then, when the chains 14 and 10 are rotated, the wood rotates while being supported by a plurality of the plurality of base plates A, ... on the same line, so that the detection reference line and the wood are substantially linear. Motor 17 when the posture (normally north-south direction)
When is stopped, the wood is centered with its north-south direction up and down.

Then, the cylinder 31 extends by a proper control circuit to rotate the holding arms 30 and 30 to hold the wood from the lateral direction, but the top surfaces of the base plates A, ... Are on the same plane. On the other hand, since the wood has north-south bends, knots or bumps, the middle or end of the wood has the base plate
-For example, it may be mounted on a few pieces and lifted up from the base plate A of the supply table 27. However, the clamping arm
30 and 30 are a large number of sawtooth-shaped irregularities 3 engraved on the sandwiching surface.
Hold 0a ・ ・ securely on the peripheral surface of the wood so that it does not move vertically or roll.

Then, the bend in the east-west direction is visually observed or detected by an appropriate detector, and the cylinder 45 of the fine adjustment device 4 is actuated according to the detection result to finely move the supply base 27, so that the centering in the east-west direction is performed. After that, the centering in the north, south, east, and west directions can be accurately performed.

Simultaneously with the completion of the centering, the cylinder 15 is contracted and the swing frame 9 is rotated downward, so that the chains 12, 14 are retracted downward together with the swing frame 9, and in this state, the drive arm 37 is moved by the cylinder 39 to the first position. Since it swings to the left in FIG. 3, the feeding table 27 of the feeding device 3 moves horizontally toward the material receiving table 1 while holding the centered state of the wood, and is placed on the base plate A. Since the part is placed on the support 6, ... In this state, both ends of the material receiving base 1 are fixed by grasping the wood, and then the clamping arms 30, 30 are laid down, and the supply base 27 operates the cylinder 39. Return it to a straight line with the tree turning means shown in FIG.

When the lumber pedestal 1 is run in this state, both sides of the wood are sawn by the left and right saws at the same time, and the backboards that drop on both sides are carried out by an appropriate conveying device.

The extruded body 41 at the tip of the supply table 27 pushes out the sawn wood that was supported on the lumber pedestal 1 in the previous step, and hits the wood attached to the lumber pedestal 1 next in the return stroke. , Escape while falling against the winding spring 40a.

When the known detection direction described above is adopted, the detector 5 is also used to detect the east-west bend.

(G) Effect of the Invention According to the present invention, the detector 5 for detecting the direction of the wood and the length direction of the wood are provided on the side portion of the material receiving stand 1 on which the wood to be sawn is placed and fixed as described above. In a wood sawing device provided with a centering device 2 comprising at least a pair of wood turning means spaced apart from each other, the centered wood is undulated on the same line as the wood turning means, and is sandwiched laterally. Since the feeding device 3 that moves horizontally toward and away from the material receiving stand 1 is provided, and the fine adjusting device is attached to the feeding device 3, the centering device 2 performs the centering of the lumber in the north-south direction. No. 3 clamps the above wood immediately and accurately without changing its posture, and in this sandwiched state, the fine adjustment device 4 can perform centering in the east-west direction, and eventually, not only in the north-south direction of the wood. Accurate centering in the east and west directions is possible. Further, the feeding devices 3 and 3 can be horizontally moved at the same height while feeding the timber cradle 1 while keeping the centering in the north, south, east and west directions. The posture can be prevented from changing, and even if the knots or humps of the wood are placed on any of the supports 6 ..., the state is set to the centering, so deformed wood is also suitable. It can be set in various postures.

[Brief description of drawings]

The drawings show one embodiment of the present invention. Fig. 1 is a front view of a centering device, Fig. 2 is a side view of the same as above, Fig. 3 is a front view of a feeding device, and Fig. 4 is a feeding device. FIG. 5 is a front view of the centering device, and FIG. 6 is a plan view showing the relative positions of the base plate, the support, the feeding device, and the centering device. 1 ... Material cradle, 2 ... Centering device, 3 ... Supply device, 4 ...
… Fine adjustment device, 27 …… Supply base, 30 …… Clamping arm

Claims (1)

[Claims] 1. A material cradle for mounting and fixing wood on which a detector 5 for detecting the direction of the wood is placed, on the side of the material cradle 1 for mounting and fixing wood to be sawn. 1 is provided with a centering device 2 provided with a tree turning means and capable of advancing and retreating,
At least one pair is arranged at intervals in the length direction of the wood, and is provided with a supply table 27 that moves forward and backward toward the centering device 2 in the horizontal direction orthogonal to the length direction of the wood, and is the same as the centering device 2. The pair of holding arms 30, 30 arranged on the line for holding the wood from the lateral direction, and the pair of the holding arms for holding the wood centered in the north-south direction by the centering device 2
By disposing the supply device 3 to be sandwiched by 30, 30, a fine adjustment device 4 is attached to the supply device 3, and the supply table 27 is finely moved in the horizontal direction by the fine adjustment device 4, thereby forming a pair of sandwiching arms 30. , 30 to finely adjust the centering in the east-west direction on the timber, and after the fine adjustment by the fine adjusting device 4 is finished, the centering device 2 is retracted and the supply is performed. Supply stand for device 3
A wood sawing device characterized in that the wood 27 is moved forward to convey the wood onto the wood cradle 1.