JP3723907B2 - Grinding position setting device for sawmill for saw mill - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a sawing position setting device for a sawmill for a sawing machine that can easily execute a positioning operation for an ear drop operation with respect to a sawmill having an irregular side end.
[0002]
[Prior art]
A ruler unit may be installed on the carry-in side of the lumber machine in order to position the lumber at a predetermined grind position.
[0003]
This consists of a ruler plate that is sufficiently long relative to the sawmill and can be translated back and forth in conjunction with a ruler attached to the sawmill. Therefore, the ground lumber after the side edges have been broken is positioned by bringing the regular side edges into contact with the ruler unit, and then brought into the lumber machine so that it follows the ruler unit and the ruler of the lumber machine. By doing so, a predetermined position can be ground through a saw blade, and a product of a predetermined dimension can be manufactured. In addition, when first grinding the irregularly shaped lumber with side edges, so-called ear drop work, the irregular side edges cannot be placed along the ruler unit. Must be positioned.
[0004]
[Problems to be solved by the invention]
According to such a conventional technique, since the ungrinded side end portion has to be manually positioned during the ear drop operation, the operation is complicated and the work efficiency is extremely poor. It was.
[0005]
Therefore, in view of the problems of the prior art, an object of the present invention is to attach a raising and lowering claw member to a ruler unit, so that even when the ear drop operation is performed, the timber is brought to a predetermined cutting position. An object of the present invention is to provide a sawing position setting device for a sawmill for a lumber machine that can be positioned efficiently.
[0006]
[Means for Solving the Problems]
The configuration of the present invention for achieving such an object includes a ruler unit of a long member that is installed on the carry-in side of the lumber machine and that runs along the ground material to be carried into the lumber machine, and a ruler unit via an individual lifting mechanism. The ruler unit can be moved back and forth via a pair of screw shafts, and each elevating mechanism has an upward guide plate. And a slide plate that moves up and down along the guide plate, and a drive source that drives the slide plate up and down.Each claw member is mounted on a rod that stands horizontally on the front surface of the lower end of the slide plate, and the slide plate is The rod is lowered and brought into contact with the upper surface of the lumber, and the ruler unit is advanced to engage the irregular side edge of the lumber at a position close to the upper surface of the lumber. The positioning of the lumber to drop the part as its gist.
[0007]
In addition, a nail | claw member can be engaged with the side edge part of a sawmill through a nail | claw.
[0008]
Moreover, the tip of the rod may abut on the upper surface of the sawn timber, or may contact the upper surface of the sawn timber via a roller.
[0009]
The claw member may be movable and adjustable with respect to the ruler unit.
[0010]
[Action]
According to the configuration of this invention, the claw member can be attached to the ruler unit so as to be movable up and down, and can be positioned by moving down and moving forward together with the ruler unit. That is, the ruler unit, when the edge of the side of the timber whose side end is indefinite, is dropped by positioning the timber through the claw member, and smashes and removes the minimum necessary ear. be able to. This is because the claw member can be engaged with the side end portion of the sawn lumber at a position close to the upper surface of the sawn lumber, and the sawn lumber can be made to correspond to the cutting position of the saw blade with a minimum margin. In addition, the grinding material having a fixed side end can be positioned through the ruler unit by retreating the claw member upward, and can be ground into products of a predetermined size.
[0011]
Note that the guide plate, slide plate, and drive source provided in the ruler unit form an elevating mechanism for the claw member, and the whole can be made thin and compact.
[0012]
In addition, the rod abuts the upper surface of the sawn timber, regardless of the thickness of the sawn timber, so that the claw member is engaged with the side end below the minimum distance from the upper surface of the sawn lumber, and the side end is It is possible to position an irregularly shaped lumber corresponding to the optimum grinding position.
[0013]
If the roller is attached to the rod, the roller facilitates the relative movement of the rod with respect to the sawn timber, and when the claw member is advanced together with the ruler unit to engage with the side edge of the sawn timber, There is no risk of moving.
[0014]
When the claw member can be moved back and forth with respect to the ruler unit, the claw member is necessary even if it is a tapered or curved ground by individually adjusting its position back and forth. It can be accurately positioned to break the smallest ear part.
[0015]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, embodiments of the present invention will be described with reference to the drawings.
[0016]
A sawing position setting device for a sawing machine for a sawing machine is provided with claw members 21, 21... On the ruler unit 11 (FIG. 1) and is installed on the carry-in side of the sawing machine M.
[0017]
The sawmill M is constructed by incorporating a saw blade M1, a caterpillar conveyor M2, M2 and a ruler M3 into a frame M4. The ruler M3 is arranged in parallel with the saw blade M1 and the caterpillar conveyors M2 and M2 on the carry-in side of the saw blade M1. Accordingly, the ruler M3 can translate the saw blade M1 back and forth, thereby positioning the sawdust H having a fixed side end and arbitrarily setting the cutting position by the saw blade M1.
[0018]
The ruler unit 11 is an elongate member having an L-shaped cross section disposed on the carry-in side of the lumber machine M (FIGS. 1 and 2). The ruler unit 11 is installed so as to be movable in parallel back and forth via a pair of screw members 11a and 11a and screw shafts 11b and 11b that fit the screw members 11a and 11a. Each screw shaft 11b is installed on the base frame 12 through bearings 11b2 and 11b2, and is connected to a common drive shaft 11c through bevel gears 11b1 and 11c1. One end of the drive shaft 11c is connected to the drive motor 11d through a chain 11d1. Guide blocks 11e and 11e are attached to the lower surface of the ruler unit 11, and a guide rod 11f parallel to the screw shaft 11b is slidably inserted into each guide block 11e. Therefore, the ruler unit 11 can be translated back and forth along the guide rods 11f and 11f via the screw shafts 11b and 11b by rotating the drive motor 11d forward and backward.
[0019]
Below the ruler unit 11, rollers 13 are disposed. Each roller 13 is rotatably installed in parallel with the screw shafts 11b and 11b and the guide rods 11f and 11f via the channel-shaped support members 13a and 13a, and is rotationally driven all at once via a drive motor (not shown). The sawmill H can be carried into the lumber machine M. The rollers 13, 13... Are arranged at the same height as the caterpillar conveyors M2, M2 of the lumber machine M.
[0020]
Claw members 21, 21... Are attached to both ends and an intermediate portion of the ruler unit 11 via individual lifting mechanisms including a guide plate 14, a slide plate 15, and an air cylinder 16 as a drive source. Each guide plate 14 protrudes upward with respect to the ruler unit 11 (FIGS. 2 and 3), and a long hole 14 a is formed in the guide plate 14 so that the lower part reaches the ruler unit 11.
[0021]
The slide plate 15 is a plate material whose upper end is bent in an L shape. A slider 15b that can move up and down in the long hole 14a of the guide plate 14 is mounted on the back side of the lower end of the slide plate 15 via fixing bolts 15c and 15c and a fixing plate 15d. The fixing bolts 15c and 15c pass through the slide plate 15 and the slider 15b and are screwed into the fixing plate 15d. The fixing plate 15d prevents the slide plate 15 and the slider 15b from being detached from the guide plate 14 and the long hole 14a. To do.
[0022]
The air cylinder 16 is erected on the back surface of the guide plate 14 via the base plate 16 a, and the rod 16 b of the air cylinder 16 is connected to the bent portion of the slide plate 15. A reinforcing plate 14 b is attached to the back side of the guide plate 14 in parallel with the air cylinder 16. Therefore, the slide plate 15 moves up and down along the surface of the guide plate 14 by expanding and contracting the air cylinder 16, and at this time, the slider 15 b slides in the long hole 14 a, thereby moving the slide plate 15. Can be guided up and down.
[0023]
The claw members 21, 21... Are attached to rods 17, 17.
[0024]
Each rod 17 is fixed to the slide plate 15 by forming a screw hole 17a on the base end surface and screwing a set screw 15e into the screw hole 17a from the back side of the slide plate 15. However, the rod 17 farthest from the lumber machine M is attached to the slide plate 15 via an attachment boss 17c (FIGS. 1 and 4). A hole 17c1 that fits the rod 17 and a screw hole 17c2 that communicates with the hole 17c1 are formed in the boss 17c in the axial direction. A screw hole 17c3 for a set screw 17c4 communicating with the hole 17c1 is formed on the side surface of the boss 17c. Therefore, the boss 17c can be fixed to the slide plate 15 by screwing the set screw 15e into the screw hole 17c2 from the back side of the slide plate 15, and the rod 17 is fixed by inserting the base portion into the hole 17c1 of the boss 17c. By tightening the screw 17c4, it can be fixed via the boss 17c. The rod 17 can be easily removed on the front side of the slide plate 15 by loosening the set screw 17c4.
[0025]
Each rod 17 has a key groove 17b on the peripheral surface (FIGS. 3 and 4), and is fixed to the slide plate 15 so that the key groove 17b is positioned upward.
[0026]
The claw member 21 is a short cylindrical member that can penetrate the rod 17 (FIGS. 3 and 5), and a claw 21a having a triangular cross section is formed on one end face. Further, the claw member 21 has a screw hole 21c for a set screw 21b formed on a side surface symmetrical to the claw 21a. Therefore, the claw member 21 can be fixed to the rod 17 in a non-rotatable manner by engaging the rod 17 with the claw 21a facing outward and projecting the set screw 21b into the key groove 17b. At this time, the tip of the claw 21 a of the claw member 21 is positioned below the rod 17 by a slight distance δ. The claw member 21 can be adjusted to move back and forth within the length of the keyway 17b by loosening the set screw 21b, and the tip of the claw 21a is a slight distance t from the saw blade M1. The distance d1 from the ruler unit 11 can be set so as to move backward.
[0027]
A presser roller 32 is attached to the ruler unit 11 on the side of the sawing machine M via a small box-shaped frame 31 (FIGS. 1 and 6). The frame 31 is formed so that the back surface is open, and a vertically long slot 31a is formed on the front surface. An air cylinder 33 is erected downward on the frame 31, and a rod 33a of the air cylinder 33 is connected to a slide base 34 that is incorporated in the frame 31 so as to be movable up and down via a bracket 34a. Sliders 34b and 34b are attached to the left and right sides of the slide base 34, and guide rods 31b and 31b standing on the left and right sides of the frame 31 are slidably inserted into the sliders 34b and 34b. Yes.
[0028]
A motor 32a is attached to the rear surface side of the slide base 34, and the presser roller 32 is fixed to the shaft end of the motor 32a. The shaft of the motor 32a passes through the long hole 31a of the frame 31 in the front-rear direction. The ruler unit 11 has a notch 11g corresponding to the long hole 31a of the frame 31. Therefore, the press roller 32 can be moved up and down by extending and contracting the air cylinder 33 and driving the slide base 34 up and down.
[0029]
Such a cutting position setting device can be used effectively with respect to the sawdust H whose edge portion has been completed and whose side ends are shaped (FIG. 1).
[0030]
At this time, the ruler M3 of the lumber machine M is set at a predetermined position in accordance with the product dimensions, and the ruler unit 11 is set at the same position as the ruler M3 in conjunction with the ruler M3. Further, the claw members 21, 21... Extend the air cylinders 16, 16 and retract them upward, and the presser roller 32 shortens the air cylinder 33 and retracts upwards.
[0031]
The grinding material H is carried onto the rollers 13, 13... Via a lateral conveyance mechanism (not shown), the side end surface of the grinding material H is positioned in close contact with the ruler unit 11, and the presser roller 32 is lowered to press the presser roller 32. When the rollers 13, 13... Are rotated, the sawn timber H is carried along the ruler unit 11 and the ruler M3 into the lumber machine M, and the saw blade M1 is used to smash a predetermined slicing position into a product. Can do.
[0032]
When the ground material H is before the ear drop operation and the side end portion is indefinite, the ground material H is positioned through the claw members 21, 21... (FIG. 7). At this time, the claw members 21, 21... May use a pair on the lumber machine M side or a pair on both ends of the ruler unit 11 depending on the length of the sawdust H. That is, the claw member 21 that is not used is assumed to have the corresponding air cylinder 16 extended and retracted upward.
[0033]
First, the pair of claw members 21 and 21 to be used and the presser roller 32 are retracted upward, and the ruler unit 11 advances to an appropriate position and stands by (solid line in FIG. 1A). In this state, when the grinding material H is carried onto the rollers 13, 13... Via the lateral transport mechanism (not shown) (in the direction of the arrow K1 in the same figure), the grinding material H has an indeterminate side end on the ruler unit 11. Stops in contact. Therefore, the ruler unit 11 moves backward together with the slide plates 15 and 15 and the claw members 21 and 21 (in the direction of the arrow K2 in the figure, the two-dot chain line in the figure), shortens the air cylinders 16 and 16, 15, the rods 17 and 17 and the claw members 21 and 21 are lowered ((B) in the figure). At this time, the tips of the rods 17 and 17 come into contact with the upper surface of the sawdust H, and the slide plates 15 and 15 can be stopped.
[0034]
Subsequently, when the ruler unit 11 is advanced (in the direction of the arrow K3 in the figure), the rods 17 and 17 are advanced along the upper surface of the sawdust H, and the claw members 21 and 21 are irregularly shaped of the sawdust H. By engaging with the side end portion, the grinding material H is pushed forward, and the cutting position of the ear portion H1 of the grinding material H can be made to correspond to the saw blade M1 (FIG. 5 (C), FIG. 5). Each rod 17 positions the tip of the claw 21a of the claw member 21 downward by a slight distance δ with respect to the upper surface of the sawdust H, so that the sawdust H1 retreats at a minimum distance t from the saw blade M1. Therefore, the claw member 21 positions the grinding material H so that the minimum ear portion H1 is dropped from the grinding material H through the claw 21a, and the saw blade M1 grinds the grinding material H. This is because the split position can be set.
[0035]
Thereafter, the claw members 21 and 21 are retracted upward by extending the air cylinders 16 and 16 (FIG. (D)), the presser roller 32 is lowered (two-dot chain line in the same figure), the rollers 13, 13... If the presser roller 32 is rotated, the sawn timber H is carried into the lumber machine M, and the ear portion H1 can be ground and dropped by the saw blade M1.
[0036]
The rod 17 abuts the upper surface of the grinding material H having a thickness h1 (solid line in FIG. 8), so that the tip of the claw 21a of the claw member 21 is ground at a position below the grinding material H by a distance δ. The ground material H can be positioned by engaging with the irregular side end of the material H. On the other hand, this holds true even for the sawdust H having a thickness h2> h1 (two-dot chain line in the figure). That is, the rod 17 is located on the side of the grinding material H at a position below the upper surface of the grinding material H by a distance δ regardless of the thicknesses h1, h2 of the grinding material H carried on the rollers 13, 13. By engaging with the end portion, the cutting position of the ear portion H1 of the sawdust H can be positioned corresponding to the saw blade M1.
[0037]
When the claw members 21 and 21 position the grinding material H whose effective widths W1 and W2 at both ends are W1 = W2, the claw members 21a and 21a corresponding to the both ends of the grinding material H are a slight distance t from the saw blade M1. The distances d1 and d1 from the ruler unit 11 may be set so as to move backward (FIGS. 9A and 5). In other words, the claws 21a and 21a can position the grinding material H with respect to the ruler unit 11 so that the grinding position M1a by the saw blade M1 is parallel to the center line Ha of the grinding material H.
[0038]
When positioning the tapered grinding material H having the effective widths W3 and W4 (W3 <W4) at both ends, the claws 21a and 21a are set to the distances d1 and d4 (d4 <d1) from the ruler unit 11 (the same figure). (B)). At this time, the distances t4 and d4 on the effective width W4 side are set to t4 = t + (W4−W3) / 2.
d4 = d1-(W4 -W3) / 2
By doing so, the sawn timber H can be positioned via the claws 21a, 21a so that the grinding position M1a is parallel to the center line Ha.
[0039]
When positioning the grinding material H which has effective widths W5 and W6 (W5 <W6) at both ends and is bent horizontally as a whole, the claws 21a and 21a have distances d5 and d6 (d5> d6) from the ruler unit 11. Setting is made ((C) in the figure). At this time, the distances t5 and d5 on the effective width W5 side and the distances t6 and d6 on the effective width W6 side are set to t5 = t + W5 / 2−Wb.
d5 = d1-(W5 / 2-Wb)
t6 = t + W6 / 2-Wb
d6 = d1-(W6 / 2-Wb)
By doing so, the sawdust H can be positioned so that the grinding position M1a is parallel to the center line Ha. However, the center line Ha at this time is a straight line that bisects the effective widths W5 and W6 at both ends of the sawmill H, and Wb is the minimum or maximum effective width on the ruler unit 11 side from the center line Ha. To do. That is, as shown in FIG. 9 (C), when the ruler unit 11 side is a sawmill H curved concavely, Wb is the minimum effective width on the ruler unit 11 side, and conversely, the ruler unit 11 side curves convexly. Wb is the maximum value of the effective width on the ruler unit 11 side for the sawed lumber H to be used.
[0040]
In the above description, the roller 17d may be attached to the rod 17 downward (FIG. 10). Since the rod 17 abuts on the upper surface of the grinding material H via the roller 17d, when positioning the grinding material H via the claw member 21 (in the direction of the arrow K3 in the figure), the rod 17 passes through the roller 17d. Relative movement can be easily performed along the upper surface, and there is no possibility that the sawmill H will inadvertently move before the claws 21a of the pawl member 21 engage with the side ends of the sawmill H. .
[0041]
Note that the claw member 21 farthest from the sawing machine M does not interfere with the sawing operation by being removed together with the rod 17 when the sawmill H is short. In addition, the claw members 21, 21... Attached to the ruler unit 11 are engaged with the indeterminate side end portions at the front and rear end portions of the sawdust H, and at least a pair is provided for positioning the sawdust H. Good.
[0042]
In the above description, the claw 21a of the claw member 21 is not always necessary. That is, the claw member 21 does not have the claw 21a as long as the claw member 21 engages with the irregular side end portion of the sawdust H at a distance δ below the upper surface of the sawdust H and can push the sawdust H forward. It may be formed as a simple collar, and may be formed in any other shape.
[0043]
【The invention's effect】
As described above, according to the present invention, the ruler unit attaches the claw member to the ruler unit so that it can be moved up and down. Since it can be positioned at the cutting position, it is very easy to position the sawn timber when performing the ear drop work, and the work efficiency can be greatly improved.
[Brief description of the drawings]
FIG. 1 is an explanatory perspective view of the overall configuration. FIG. 2 is an enlarged cross-sectional view corresponding to the line XX in FIG. 1. FIG. 3 is an enlarged exploded perspective view of essential parts (1).
FIG. 4 is an enlarged exploded perspective view of a main part (2).
5 is an enlarged cross-sectional explanatory view of the main part. FIG. 6 is an enlarged perspective view of the main part. FIG. 7 is an operation explanatory view (1).
FIG. 8 is an operation explanatory diagram (2).
FIG. 9 is an operation explanatory diagram (3).
FIG. 10 is a main part enlarged explanatory view showing another embodiment.
H ... sawmill M ... sawmill 11 ... ruler unit 14 ... guide plate 15 ... slide plate 17 ... rod 17d ... roller 21 ... claw member

Claims (5)

Installed on the carry-in side of the lumber machine, and a ruler unit of a long member along the ground material to be carried into the lumber machine, and at least attached to both end portions and intermediate portions of the ruler unit via individual lifting mechanisms A pair of claw members, the ruler unit is movable back and forth through a pair of screw shafts, and each of the elevating mechanisms is moved up and down along the guide plate and the guide plate A slide plate; and a drive source that drives the slide plate to move up and down. Each of the claw members is attached to a rod that stands horizontally on the front surface of the lower end of the slide plate, and the rod is lowered to lower the rod. Is brought into contact with the upper surface of the sawn timber, and the ruler unit is advanced to engage the irregularly shaped side edge of the sawmill at a position close to the upper surface of the sawn timber, and the necessary minimum ear portion is attached. Groats positioning device sawn timber for lumber machine, which comprises positioning the lumber to Suyo. The pawl member is meal positioning device sawn timber for lumber machine according to claim 1, wherein Rukoto to adjust the engagement side end of sawn timber through the nail. The rod tip groats position setting device sawn timber for lumber machine according to claim 1 or claim 2, wherein the benzalkonium be abutted against the upper surface of the lumber. The rod de is meal positioning device sawn timber for lumber machine according to any one of claims 3 to claims 1, characterized in that contact with the upper surface of the sawn timber through the rollers.   The said claw member is movable adjustment back and forth with respect to the said ruler unit, The cutting position setting apparatus of the sawmill for lumber machines in any one of the Claims 1 thru | or 4 characterized by the above-mentioned.

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