JPH072324B2 - Lumber sorting device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION <Purpose of the Invention><Industrial field of application> The present invention relates to a lumbering machine, and in particular, a sawing machine sorting apparatus applicable to a so-called lip saw for further dividing a plate-like material into small pieces. It is related to.

<Background of the invention> When sawing timber and plate materials by further sawing wood logs cut into plate-like pieces in the vertical direction, transfer the material around a sawing device such as a circular saw machine or band saw machine. An apparatus is used in which various kinds of conveyors are combined to enable efficient grinding work. A typical example of the conventional type is as shown in a skeleton form in FIG. 7, and in the feeding direction of the circular saw machine which is the sawing device 1 ′, a sawing conveyor 2 ′ is provided over the range before and after that, and further. A return conveyor 3'is provided along the cutting conveyor 2'at a position deviated from the cutting track, and the supplied plate material is appropriately cut and broken to take out waste material, take out product material, and further grind. Continue to collect the return material. By the way, the procedure of the cutting work is, for example, a plate-shaped material with bark parts at both ends, so-called ears (both ears A ₀ ).
In order to grind a product material A ₂ such as a small-diameter square timber from one, first, one ear portion a ₀ is ground, and only the other ear portion a ₁ remains (hereinafter referred to as one ear material A ₁ ). Then, using this ground surface as a reference, this is applied to a ruler plate, and one or both of the ruler plate and the saw blade are moved to make a step to grind a predetermined size, and this operation is repeated. Eventually, there is no residual portion where the product material can be ground away, and almost all other ear parts are taken out as waste material, and thereafter used as chips and the like. In this actual work, the plate-shaped ears A ₀
Rather than repeating the above work for each sheet,
Figure (b) the Ryomimizai A ₀ as shown in summarized several sheets allowed to integrate this with have a process up to the stage dropping ground only ears a ₀ of one, one ear portion a _Re is ground Dropped one ear material A
_{When a} certain number of pieces of ₁ have been stored, this is repeated many times for each piece of wood, and the pieces are passed through a sawing device to cut so many pieces of timber or plates that can be cut, so-called turning sawing. At this time, if taken grind ears a ₀ particularly in the conventional type of previous first timber A, back ear material A ₁ comprising a return member, as shown in FIG. 8 (a) is first conveyor 3 Move to the ‘
After that, return on the return conveyor 3'to the cutting preparation position side,
On the other hand, the ear part a ₀ that has been ground with a roller is shown in Fig. 8 (b).
As shown in (4), it is pushed up from below to be transferred to the return conveyor 3'side and dropped to the waste material take-out section 7'side. However, this operation is performed only after waiting for the return material to be sent from the sorting side of the return conveyor 3'on the sorting section side.
Since the ear part a ₀ remains for a relatively long time, the next material cannot be fed, and this holding time is wasted and the overall work efficiency is reduced.

<Technical Items Attempted to Develop> The present invention has been made in view of such a background,
This is an attempt to develop a sorting device for sawmill that enables efficient sawing by eliminating the so-called waiting time by allowing the sawn timber to immediately leave the sawing conveyor.

<< Structure of Invention >><Means for Achieving the Object> A first invention of a sawdust sorting device according to the present application comprises a sawing conveyor set to pass through a sawing device, and a return conveyor parallel to the sawing conveyor. In the apparatus for sorting the material by cyclically transporting the material by the sawing conveyor and the returning conveyor, and for sorting the material that has been sawed in the sorting section, in the sorting section. A product material take-out section is provided adjacent to the grinding conveyor side, and a waste material take-out section is provided near the return conveyor side. Further, in the sorting section, the take-out side can freely move in and out of the conveying surface between the grinding conveyor and the return conveyor. A sorting conveyor and a sorting conveyor on the return side are installed, while a waste material recovery conveyor is installed above the sorting section so as to cross between the grinding conveyor and the return conveyor. Those comprising as a feature in that a waste receiving arms.

In addition to the above requirements, the second invention of the sawmill sorting device according to the present application is characterized in that the waste material recovery conveyor is of a traverser type.

Furthermore, in addition to the above requirements, the third invention of the sawmill sorting device according to the present application is characterized in that the waste material collecting conveyor is a link type.

The above objects are intended to be achieved by these inventions.

<Operation of the Invention> The material ground by the present invention is immediately withdrawn from the grinding conveyor so that it can be emptied on the grinding line. As a result, it is possible to start the cutting work of the next material with almost no time after the completion of the cutting. That is, when waste material is generated on the side opposite to the waste material unloading section 7, that is, when one ear portion a ₀ is ground from both ear materials A ₀ , this is received by the waste material recovery conveyor 201 and is placed above the sorting section. It is lifted and dropped across the waste material extraction unit 7 side.
As a result, it is possible to start the cutting work of the next material with almost no time after the completion of the cutting.

<Example> Hereinafter, a specific description will be given based on an illustrated example of the present invention. Main members constituting the sawmill sorting device of the present invention,
A sawing conveyor 2 and a returning conveyor 3 that are provided so as to surround the sawing device 1 that directly bears the sawing action, and a sorting device 4 that is provided in a sorting section 4S that is a range on the sawing completion side.
And. The grinding conveyor 2 is arranged on the grinding line of the grinding device 1 in the front and rear direction, and the return conveyor 3 extends from the grinding preparation position to the sorting section 4S after grinding so as to be substantially along the grinding conveyor 2. It is provided in the range of. Then, a sorting device 4 is provided on the rear side in the sawing direction so as to cross the sawing conveyor 2 and the returning conveyor 3. A material supply unit 5, a returned material storage unit 6, a waste material extraction unit 7, and a product material extraction unit 8 are provided around the grinding conveyor 2 and the return conveyor 3. Each of these members will be described below. The grinding device 1 is, for example, a double saw circular saw machine applied, and a motor M for the grinding device is mounted on a grinding device frame 11 to drive the same. As an example, two circular saw blades 13 are provided for the main shaft 12 directly or indirectly connected to the shafts (a circular saw blade 13A is separated from the motor M side when necessary, and a circular saw blade closer to the motor M is used. The saw blade is distinguished from 13B) is attached to the main shaft 12 having a double structure in which the overhanging dimension can be adjusted independently. Further, a ruler plate 14 is provided on the front side of the circular saw blade 13 in the cutting direction so that the so-called step setting can be freely set. In addition, an upper pressing roller 15 is provided on the front side and the rear side with the circular saw blade 13 interposed therebetween.
To provide. If necessary, a spike roller or the like for holding the side surface of the material A may be attached, as a matter of course. Further, the grinder 1 is provided on the side opposite to the material supply unit 5 in the embodiment shown in FIGS. 1 to 4 or 5, but is provided on the material supply unit 5 side as in the embodiment shown in FIG. You may do it.
Next, the grind conveyor 2 and the return conveyor 3 will be described. First, these are formed on the upper surface of a common conveyor frame 16 as an example, and the grind conveyor 2 and the return conveyor 3 are both in the transfer direction. It has a large number of rollers 17 and 18 which are orthogonal to, and takes the form of a so-called roller conveyor. Needless to say, the roller conveyor is not limited to the transport means for both the grinding conveyor 2 and the return conveyor 3, and any suitable method such as a chain conveyor or a slat conveyor may be used. As for the rollers 17 and 18, the specifications can be appropriately selected in whole or in part by applying a free roller that is not driven as needed or by setting a driven roller. Then, the sorting device 4 having the technical configuration of the present invention is provided in the sorting unit 4S on the side of completion of cutting. First, a take-out side sorting conveyor 20 and a return side sorting conveyor 23 are provided on the conveying surface formed by the sawing conveyor 2 and the returning conveyor 3 so as to be able to project and retract from here. Of these, the take-out side sorting conveyor
A plurality of arms 20 are attached to a base shaft 21 arranged at the edge of the conveyor frame 16 on the side of the sawing conveyor 2 so as to be freely slidable, and the upper surface thereof is, for example, like a chain conveyor. Chain that is responsible for transfer
Suspend 22. On the other hand, a return-side sorting conveyor 23 is provided opposite to this, and this one also has, as an example, a structure in which a plurality of arm-shaped members are attached to a base shaft 24 arranged on the side of the return conveyor 3 side so that it can be freely laid down. The upper surface of the chain 25 is essentially a chain conveyor.
To provide. It should be noted that both the take-out side sorting conveyor 20 and the return side sorting conveyor 23 are set in a laid-down state such that their transport working surfaces are set to positions sufficiently lower than the transport working surfaces of the rollers 17 and 18. Further, in this sorting section 4S, as a member for positively allocating the product material and the waste material that are further ground, a sorting member that can be freely retracted from below or an extension of the grinding track of the circular saw blade 13 is provided. It is possible to incorporate a known configuration such as an appropriate sorting plate described above, if necessary. Further, as a characteristic configuration of the present invention, a waste material recovery conveyor 201 is provided three-dimensionally above the sorting unit 4S. That is, as the waste material recovery conveyor 201, a so-called shuttle type shown in FIG. 4 and a link type using a link arm as shown in FIG. 5 can be applied as an example. First, the shuttle type waste material recovery conveyor 201 shown in FIG. 4 will be explained.
Supported by 03, it can reciprocate on this. That is, the rail 203 is provided so as to cross over the sorting unit 4S, and the shuttle body 202 moves from the range on the product material take-out section 8 side to the waste material take-out section 7 side along the rail.
The shuttle body 202 includes an elevating frame 204, which is vertically moved by a lift cylinder 205, and a waste material take-out arm 206 is provided at the lower end of the elevating frame 204. This waste material extraction arm 206 is a lifting frame
The lower end of 204 has an action part that is rotatable, and its rotation is controlled by a shift cylinder 207 attached to a part of the elevating frame 204.
A product material take-out chute 208 is provided on the product material take-out section 8 side, and a waste material take-out bucket 20 is provided on the waste material take-out section 7 side.
Install 9. In the embodiment shown in FIG. 4, the waste material take-out bucket 209 is of a so-called trolley type, and by moving the trolley, the accumulated waste materials can be conveyed to an appropriate place. Of course, such a waste material extraction bucket 209
Instead of the above, it is of course possible to use a conveyor or the like so that the waste material can be continuously taken out. The link type waste material recovery conveyor shown in Fig. 5
As for 201, the essential point is that the waste material receiving arm that directly carries the waste material transporting action can be appropriately moved from the product material unloading section 8 side to the waste material unloading section 7 side. That is, FIG. 5 (a)
In the embodiment shown in (1), a post 210 is provided on the product material take-out portion 8 side, and a link arm of three sections is provided as an example at the upper end portion thereof.
211 is provided, and a waste material receiving arm 212 is attached to the tip thereof. The waste material receiving arm 212 is configured to be rotatable so that the waste material can be received and transported, and further, the waste material can be discharged, and the shift cylinder 213 shifts the rotation. The embodiment shown in FIG. 5 (b) is the same link type, but the post 210 is provided on the waste material take-out portion 7 side. If the embodiment shown in FIGS. 5 (a) and 5 (b) is also required, the material pressing arm 214 as shown in FIG. 5 (c) is used to ensure the retention of the waste material in the waste material receiving arm. It is possible to attach. Next, the apparatus constituting the material supply unit 5 will be described.
The material supply section 5 is substantially constituted by the binaural material supply device 27, and the material supply section 5 is provided on the side of the return conveyor 3 on the front side in the cutting direction. It is desirable to apply a so-called chain conveyor in which the feeding device frame 29 is suspended on the upper surface of the feeding device frame 28 as the both-ear material feeding device 27. Of course, if there are restrictions on the layout of each factory, etc., at the request of the factory, the material A processed at another place on the dolly without permanently installing the binaural material feeding device 27 is provided.
Can be supplied in an integrated state. Of course, in addition to this, it is possible to apply a three-dimensional storage device such as a return material storage device in the return material storage unit 6 as described later. Further, adjacent to the material supply section 5, a material A supply device 30 is provided so as to traverse between the sawing conveyor 2 and the return conveyor 3, and this equipment A is provided on the material supply section 5 side. 31 is provided so that the supply device 30 can be freely laid down, and a chain 32 is suspended on the upper surface of the supply device 30 to form a so-called chain conveyor. In the laid state in the non-operating state, this one is also set in a state in which it is sunk sufficiently below the conveying operation surfaces of the sawing conveyor 2 and the returning conveyor 3. Further, a pair of front and rear pin rulers 33 is provided so as to be retractable at a position aligned with the ruler plate 14, and this pin ruler 33 is integrally moved with the ruler plate 14 in the stepping direction. Next, the return material storage section 6 will be described. This embodiment is characterized in that it is provided in a range other than the material supply section 5 and the product material extraction section 8 in the present embodiment.
In the embodiment shown in FIGS. 1 to 3, it is provided at a position facing the material supply unit 5, that is, at a position facing the material supply unit 5, the grinding conveyor 2 and the return conveyor 3 between them. The returning material storage device 34 that substantially constitutes the returning material storage portion 6 suspends the endless chain 36 from the returning material storage device frame 35 that extends sufficiently in the vertical direction, and The support attachment 37 is provided so as to project in the horizontal direction, and the one ear material A ₁ is three-dimensionally stored in the support attachment 37. A kicker 38 is provided inside the device for taking out the one ear material A ₁ stored in the returning material storage device 34. This is, for example, one end of an L-shaped arm-shaped member that serves as a base shaft.
39, and the rotation is transmitted from the drive shaft 40 to the base shaft 39 through the chain 41, and the base shaft 39 is rotated to rotate the one ear material A ₁ on the support attachment 37 at the tip end portion of the kicker 38 for grinding the conveyor 2. It kicks to the side. Of course, in this case, the supply device 30 actually stands by at a position where it is lifted up and receives it, and the transfer device 30 is transferred to it.

The lumbering machine according to the present invention has a specific structure as described above, and a mode of sorting work by this will be described below.

i) Treatment of both ears When both ears A ₀ are supplied from the both ears supply device 27 onto the sawing conveyor 2, first of all, one ear a ₀ is ground from the both ears A _0. . That is, both ears A ₀ placed on both ears supply device 27 in material supply unit 5 are sequentially transferred onto sawing conveyor 2 by an operator or an automatic transfer device. At this time, in this embodiment, the sawing device 1 has two circular saw blades 13
Although it has A and 13B, it is sufficient to operate only one blade. Therefore, for example, the sawing is performed by the circular saw blade 13A, and the other circular saw blades 13B are sufficiently retracted to the motor M side. And And the position of one ear a _{0 to} be cut off and the circular saw blade
Feed material A forward with 13A matched. In this operation, the worker may manually push the material A up to the appropriately driven roller, or if the roller on the front side in the cutting direction of the cutting conveyor 2 is freely drivable, this is appropriately driven. Then, both ears A ₀ are sent to the sawing device 1. At this time, one of the ears a ₀ is cut by the cutting device 1 and sent to the sorting unit 4S. In this situation,
Both the ear part a ₀ and the one ear material A _{1 which} is the returning material are immediately withdrawn from the side of the grinding conveyor 2. This operation is first performed as follows in the shuttle type waste material collecting conveyor 201 shown in FIG. When the ear portion a ₀ is ground, the shuttle body 202 of the waste material collecting conveyor 201 is positioned in advance on the product material pick-up section 8 side, and the elevating frame 204 is also lowered. Then, the tip of the waste material receiving arm 206 is lifted up (the state shown by the solid line in FIG. 4). When ears a ₀ comes to leave the挽割conveyor 2 in such a state, the ears a ₀ is received by scrap receiving arm 206. Then, as the lift cylinder 205 extends, the elevating frame 204 ascends and moves to above the sorting unit 4S while holding the waste material.
Moves horizontally to the waste material unloading section 7 side so as to cross over the sorting section 4S. As a result, the ear part a ₀ becomes the waste material removing part 7
When the shift cylinder 207 contracts, the tip portion is lowered and dropped into the waste material extraction bucket 209. Also, in the so-called link type waste material collecting conveyor 201 as shown in FIG. 5, the link is appropriately operated in the same manner to position the waste material receiving arm 212 on the side of the product material unloading portion 8 into which the ear portion a ₀ is fed. After receiving, the link arm 211 is appropriately extended to transfer the ear a ₀ across the sorting unit 4S to the waste material take-out unit 7 side and drop it into the waste material take-out bucket 209.

ii) Turning and grinding Next, one ear material A ₁ is sequentially returned from the sawing conveyor 2 to the returning conveyor 3
The processing when the product material A ₂ is ground by circulating the above will be described. In this case, the smoothed surface of the ear part a ₀ is applied to the ruler plate 14 so that the dimension can be set, and the sawing is performed sequentially. In this embodiment, the cutting device 1 has two circular saw blades 13, so that two or two product materials A ₂ can be cut at once. As shown in FIG. 4, the two product materials A ₂ are located on the product material take-out section 8 side in the sorting section 4S at the time when the sawing is done, while the one-ear material is collected again on the return conveyor 3 side. A ₁ is located, and the one ear material A ₁ to be ground is immediately sent to the return conveyor 3 side by the return side sorting conveyor 23 as described above. Meanwhile, product material A ₂ at the same time
Is transferred to the product material take-out section 8 side by the take-out side sorting conveyor 20. In this turning and grinding, waste material recovery conveyor
Since 201 does not need to act in particular, a state is appropriately set in which the dropping of the product material A _{2 to} the product material ejection chute 208 side is not hindered. For example, in the case where the waste material receiving arm 206 of the shuttle body 202 as shown by the solid line in FIG. 4 is located on the product material unloading section 8 side, for example, the waste material receiving arm 20
As shown by the phantom line, 6 is lowered. Of course, in such cases, for example, product material
If you want to send A ₂ to the waste material extraction unit 7 side due to the layout of the factory, use the waste material recovery conveyor 201 and use the ear a
It is also possible to shift as in the case of the processing of ₀ . In this case as well, the product material A ₂ is ground and split, which is the sorting section 4S.
At that time, both the product material A ₂ and the turning material A ₃ immediately leave the grinding conveyor 2, so that the next material A can be fed.

iii) Elimination of other ears When such turning is advanced, finally turning material A ₃
There is no room to grind the product material A ₂ from the product, and the remaining part, the ear portion a _1, is recovered as waste material. In this case also, since the other ear portion a ₁ is directly transferred to the waste material take-out section 7 side by the return side sorting conveyor 23, the waste material collecting conveyor 201 is not operated.

<< Effects of the Invention >> The present invention has the configuration as described above, and the crushed material can be immediately removed from the crushing conveyor 2 after the crushing is completed regardless of the work mode. As a result, the next lumber can be put in immediately, so that so-called waiting time can be eliminated and efficient lumbering work can be performed.

[Brief description of drawings]

FIG. 1 is a partially transparent perspective view showing a sawmill device to which the sawmill sorter of the present invention is applied, FIG. 2 is a plan view of the same as above, FIG. 3 is a plan view of the same as above, and FIG. 4 is a sorter for sawmill of the present invention. FIG. 5 is an enlarged front view of the apparatus, FIG. 5 is a skeletal front view showing the other two embodiments of the same as above, and a side view showing an embodiment in which a material pressing arm is provided on the waste material receiving arm, and FIG. FIG. 7 is a plan view showing an embodiment in which a splitting device is provided on the side of the material supply unit, and FIGS. 7 and 8 are explanatory views showing a conventional sawing material sorting device and its problems. 1; Grinding device 2; Grinding conveyor 3; Return conveyor 4; Sorting device 4S; Sorting part 5; Material supply part 6; Return material storage part 7; Waste material unloading part 8; Product material unloading part 11; Grinding device frame 12; Spindle 13, 13A, 13B; Circular saw blade 14; Ruler plate 15; Upper pressing roller 16; Conveyor frame 17, 18; Roller 20; Extraction side sorting conveyor 21; Spindle 22; Chain 23; Return side sorting conveyor 24; Base shaft 25; Chain 27; Binaural material supply device 28; Supply device frame 29; Supply device chain 30; Supply device 31; Base shaft 32; Chain 33; Pin ruler 34; Return material storage device 35; Return material storage device frame 36; Endless Chain 37; Support Attachment 38; Kicker 39; Base Shaft 40; Drive Shaft 41; Chain 201; Waste Material Collection Conveyor 202; Shuttle Body 203; Rail 204; Lifting Frame 205; Lift Cylinder 206; Waste Material Receiving Arm 207; Shift Cylinder 208; Product material extraction chute 209; Waste material extraction bucket 210; Post 211; Link arm 212; Waste material receiving arm 213; Shift cylinder 214; Material holding arm A; Material A ₀ ; Both ear material A ₁ ; One ear material A ₂ ; Product material A ₃ ; Turning material a ₀ , a ₁ ; Ear M; Motor

Claims (3)

[Claims] 1. A sawing machine comprising a sawing conveyor set to pass through a sawing machine and a return conveyor parallel to the sawing conveyor, wherein the sawing conveyor and the return conveyor cyclically convey the sawing material. In a device that divides and divides the material cut in the sorting section according to the cutting processing situation, a product material take-out section is provided adjacent to the sorting section on the side of the dividing conveyor, and on the side of the return conveyor. A waste material unloading section is provided in the sorting section, and a sorting side sorting conveyor and a returning side sorting conveyor are provided in the sorting section so that the sorting conveyor and the returning conveyor can freely move in and out of the transportation surface. The waste material collecting conveyor is provided so as to cross between the waste material collecting conveyor and the return conveyor, and the waste material collecting conveyor is provided with a waste material receiving arm. 2. The sawmill sorting device according to claim 1, wherein the waste material recovery conveyor is of a traverser type. 3. The sawmill sorting device according to claim 1, wherein the waste material recovery conveyor is a link type.