JP3170614B2 - Lumber sorting equipment for sawmills - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a sawing machine which is disposed behind a sawing machine, separates left and right sawn sawmills into left and right parts, and sorts them into products and remaining materials. The present invention relates to a sawn wood sorting device.

[0002]

2. Description of the Related Art As a sorting device for automatically sorting a sawn timber into products and remaining materials, a sawn timber table that moves back and forth in the traveling direction of the sawn timber is disposed behind a sawing machine. Is known in which a product is bent into a chevron along the longitudinal direction, and the product and the remaining material are separated left and right (Japanese Patent Laid-Open No. 62-27).
No. 101).

[0003] In this method, during sawing of the sawn timber, the sawn timber table is retracted to the sawing machine side and takes a horizontal position, and while the sawn timber from the sawing machine is supported on the upper surface thereof, when the sawing is completed, By moving the sawn wood table forward in the direction of travel of the sawn wood and separating the sawn wood from the sawing machine and simultaneously bending the sawn wood into a chevron, it is possible to sort left and right products and leftovers. In the sawing material table, a lever-shaped sorting member may be incorporated in the bent portion so that the sorting member protrudes higher toward the product when bent into a mountain shape (the same publication). Since the sorting member can forcibly discharge the product on the product side to the remaining material side, both the product and the remaining material are discharged to the remaining material side, and if necessary, both are produced via the return conveyor. To the front of the machine, for example,
It can be conveniently used for coarse grinding when the product is further finely ground.

[0004]

According to the prior art, since the sawing table needs to be moved back and forth, the total required installation space becomes excessive and the driving system of the sawing table is large. There was a problem that would be. In addition, the sawn wood separates the product and the remaining material into left and right parts and sorts them. Alternatively, both of them can be discharged to the remaining material side. There is also a restriction that both cannot be discharged to the product side because they do not protrude to the product side.

Therefore, an object of the present invention is to use a feed conveyor instead of a sawn wood table and to combine a traversing conveyor and a sorting lever, thereby simplifying the overall configuration and reducing the required installation space. Another object of the present invention is to provide a sawing machine sorting apparatus for a sawing machine capable of arbitrarily sorting products and remaining materials.

[0006]

According to the present invention, there is provided a feed conveyor disposed behind a sawmill and a feeder which projects on an upper surface of the feed conveyor, and cuts the sawn material on the feed conveyor into right and left directions. A plurality of sorting levers, and a return conveyor that is arranged side by side on the feed conveyor, and conveys the sawn timber to the front of the sawmill, and is disposed so as to cross the feed conveyor and return conveyor. A traversing conveyor that projects and retracts on the upper surface and conveys the sawn material on the feed conveyor to the return conveyor side or the feed conveyor side, and a sorting lever discharges the sawn material on the feed conveyor or the traverse conveyor. The main point is to take

[0007] A stopper may be provided for controlling the progress of the sawn wood which is protruded and retracted on the upper surface of the traversing conveyor and conveyed to the return conveyor by the traversing conveyor.

[0008] The sorting lever can also assume an intermediate position for supporting the sawn material on the feed conveyor or on the traversing conveyor.

[0009]

According to the structure of the present invention, the feed conveyor can convey the sawn wood discharged from the sawmill and separate the sawn wood from the sawmill, and the sorting lever can be moved on the feed conveyor in this way. Separating the progressing lumber left and right,
It can be sorted into residual materials and products. A traversing conveyor, on the other hand, can convey the sawn material on the feed conveyor to either the return conveyor side or the feed conveyor side. Therefore, if the traversing conveyor is driven to the feed conveyor side without operating the sorting lever, both the residual material and the product can be discharged to the product side, and if the traversing conveyor is driven to the return conveyor side, both the materials can be discharged. Can be discharged to the remaining material side. Further, by operating the sorting lever, the product can be discharged to the product side and the remaining material can be discharged to the remaining material side.

The stopper activates the stopper and drives the traversing conveyor toward the return conveyor, thereby stopping both the remaining material and the product at an appropriate position on the return conveyor, and connecting the both to the sawing machine via the return conveyor. Can be transported to the front of the However, at this time, the product can be discharged to the product side by setting the sorting lever to the discharge position.

If the sorting lever is set at the intermediate position to temporarily support the product, the product can be discharged to the remaining material via the traversing conveyor.

[0012]

Embodiments will be described below with reference to the drawings.

The sawing machine of the sawing machine includes a feed conveyor 10 disposed behind the sawing machine M and a sorting lever 2.
1, 21,..., Return conveyor 30, and traversing conveyor 4
, And stoppers 51, 51... (FIG. 1), and are mounted on the frame F as a whole.

The sawmill M includes a circular saw M1 driven by a drive source (not shown) and a caterpillar conveyor M for transferring sawn timber.
2 and M2, the sawn material carried in the direction of arrow A from the front surface can be cut by the circular saw M1 and discharged onto the feed conveyor 10. In FIG. 1, the sawn timber is
The left side in the traveling direction (the side of the feed conveyor 10) becomes the product, and the right side in the traveling direction (the side of the return conveyor 30) becomes the remaining material.

The feed conveyor 10 is located behind the sawmill M,
.. Are divided into four blocks 10a, 10a,. Each block 10a has a pair of endless transport chains 11, 11 and a bar-shaped carrier 12,
12 are provided in a ladder shape (FIG. 2). The two continuous blocks 10a, 10a are connected to a common drive motor 1 via a drive chain 13 and a connection chain 14.
5 is driven in the direction of the arrow in FIG. Block 10
A traversing conveyor 40 is disposed between a and 10a. .. Are arranged on both sides of each block 10a including both ends of the feed conveyor 10 (FIG. 1).

The sorting levers 21, 21... Are arranged in a row on a rotating shaft 22 arranged on the product side of the feed conveyor 10 in parallel with the feed conveyor 10. The leading end of each sorting lever 21 is parallel to the traversing conveyor 40,
Are inserted on both sides of each block 10a.

Each of the sorting levers 21 is formed substantially in an L-shape (FIG. 3), the base end of one side 21a is fixed to the rotating shaft 22, and the other side 21b is tapered. Side 2
A projecting portion 21c having a mountain shape is formed in the direction opposite to the projecting direction of 1b. Are fixed at the same angle with respect to the rotating shaft 22, and one of the sorting levers 21 is fixed.
Are connected via a double cylinder 23 to a fixing member F1 which forms a part of the frame F. Double cylinder 23
Connects the cylinders 23a and 23b in series, shortens both cylinders 23a and 23b, extends only one,
Alternatively, by extending both, the rotating shaft 22 can be rotated in three stages.
1, 21,... Can be in a retracted position (solid line in FIG. 4), an intermediate position (dashed line in FIG. 4), and a discharge position (dashed line in FIG. 4).

The sorting levers 21, 21,... Are located below the upper surface of the feed conveyor 10 at the retracted position, and protrude higher on the upper surface of the feed conveyor 10 at the discharge position.
Also, the projections 21c, 21c of the sorting levers 21, 21,...
Are projected almost entirely on the upper surface of the feed conveyor 10 when the sorting levers 21, 21... Are at the intermediate position, and the projected position is located substantially on the extension of the circular saw M1 of the sawmill M.

The return conveyor 30 includes a number of feed rollers 3
1, 31,... Are arranged in a line (FIG. 1), are arranged side by side on the feed conveyor 10 as a whole, and reach the front surface of the sawing machine M.

Are divided into a plurality of blocks corresponding to each block 10a of the feed conveyor 10 (FIG. 5).
2 driven. That is, the feed rollers 31, 31,...
3 and 33, a specific feed roller 31 in the block is connected to the intermediate shaft 3 via a skewed connecting chain 34.
5 and two adjacent blocks of intermediate shafts 35, 35
Are connected via another connecting chain 36 and are connected to the drive motor 32 via a drive chain 37.
Each of the feed rollers 31, 31,... Is driven in the direction of the arrow in the figure, and a traversing conveyor 40 is disposed between the blocks.

The feed conveyor 10 and the return conveyor 3
In the case of No. 0, the upper surface serving as the transport surface is substantially the same height as the upper surfaces of the caterpillar conveyors M2 and M2 of the sawmill M.
The traversing conveyors 40, 40,...
0, it is disposed so as to cross the return conveyor 30 in common (FIG. 1).

Each traversing conveyor 40 has a driven sprocket 42 pivotally mounted on the tip of a long frame plate 41 (FIG. 6), a driving sprocket 43 is mounted on a driving shaft 49, and a space between the driving sprocket 43 and the driven sprocket 42 is provided. It is configured by extending an endless transport chain 44. However, the base end of the frame plate 41 is swingably attached to the drive shaft 49 so as to sandwich the drive sprocket 43. In addition, the drive shaft 49 is connected to all the traversing conveyors 40,
40 are provided in common with each other, and are connected to a common drive motor 47 via a drive chain 48.

The intermediate portions of the frame plates 41, 41... Are connected to a common rotating shaft 45 via links 45a, 45a, 45b, respectively.
It is connected to. However, for a specific frame plate 41, one end of a link 45b fixed to the rotating shaft 45 is extended, and a cylinder 46 is connected to the end thereof. If the cylinder 46 is shortened, the frame plates 41, 41 ... swing about the drive shaft 49, and the traversing conveyors 40, 40 ...
Can take a horizontal position in which the upper surface is lower than the upper surfaces of the feed conveyor 10 and the return conveyor 30 (solid line in FIG. 4). If the cylinder 46 is extended, the traversing conveyor 4
0, 40... Can take an inclined position in which substantially the entire length thereof protrudes from the upper surfaces of the feed conveyor 10 and the return conveyor 30 (the two-dot chain line in the figure).

The stoppers 51, 51...
0 are arranged side by side on the remaining material side (FIG. 1). Stopper 51,
Are fixed at the same angle with respect to a common rotating shaft 52, and the rotating shaft 52 is
Are arranged side by side slightly inside the drive shaft 49. The disposition positions of the stoppers 51, 51...
.. Are very close to the drive sprockets 43, 43 (FIG. 7).

Each stopper 51 has a pedal-shaped stopper plate 51b attached to the tip of a lever 51a. Also,
The rotating shaft 52 is provided with a link bracket 53a protruding halfway.
Through the cylinder 53. Therefore, if the cylinder 53 is expanded and contracted, the stoppers 51, 51,... Can be simultaneously raised almost perpendicularly to the traversing conveyors 40, 40 (see two-dot chain lines in FIGS. 7 and 4). , 40... Can be retracted below (solid line in FIG. 4).

It should be noted that the blocks 10a, 10a adjacent to the feed conveyor 10 and the sorting lever 2 disposed therebetween are provided.
1. The relative positional relationship with the traversing conveyor 40 is as shown in FIG. 8, and the relative positional relationship between the return conveyor 30, the traversing conveyor 40, and the stopper 51 is as shown in FIG. However, FIGS. 8 and 9 also show the sawn material B conveyed by the feed conveyor 10 and the return conveyor 30, and FIG. 8 shows the sorting lever 21 at the discharge position and the traverse conveyor 40 at the inclined position. Are indicated by two-dot chain lines.

The operation of the sawmill sorting apparatus of the sawmill is as follows.

First, when the traversing conveyors 40, 40,... Are placed in a horizontal position and the ground material B is carried in from the front of the sawing machine M, the ground material B is transported by the caterpillar conveyors M2, M2 and ground by the circular saw M1. Cracked, product B1,
The remaining material B2 is discharged onto the feed conveyor 10 (FIG. 10B).

The feed conveyor 10 includes a product B1 and a remaining material B2.
, And separates the sawn lumber B from the sawing machine M. Subsequently, the traversing conveyors 40, 40,... Are operated to return to the conveyor 30 side, and the cylinders 46 are extended to extend the traversing conveyors 40, 4,.
If 0... Are set to the inclined position ((C) in the figure), the traversing conveyors 40, 40.
And both the product B1 and the residual material B2 can be discharged to the residual material side (FIGS. (D) and (A)). In addition,
At this time, the stoppers 51, 51 ... are retracted downward, and the sorting levers 21, 21 ... are retracted to the retracted position.

Both the product B1 and the residual material B2 can be discharged to the product side (FIG. 11A). Product B1,
When the residual material B2 is discharged onto the feed conveyor 10 (FIG. 2B), the traversing conveyors 40, 40,.
The cylinder is driven to the zero side, and the cylinder 46 is set to the inclined position (FIG. 9C). As a result, the product B1 and the remaining material B
2 can be transported to the leading end of the traversing conveyors 40, 40,... On the side of the feed conveyor 10, and thereafter, both cylinders 23a, 23b of the double cylinder 23 are extended to discharge the sorting levers 21, 21,. When it is pushed up to a higher position (FIG. 2D), both the product B1 and the residual material B2 can be discharged to the product side by the sorting levers 21, 21.

When the product B1 is discharged to the product side and the residual material B2 is discharged to the residual material side (FIG. 12A), first, one of the cylinders 23a and 23b is extended to extend the sorting lever 21, 21 are pushed up to an intermediate position (FIG. 2B) to separate the product B1 and the remaining material B2 on the feed conveyor 10 into right and left parts. Next, the traversing conveyors 40, 40,... Are driven to the return conveyor 30 side, and when the traversing conveyors 40, 40,. , And at the same time, if both of the cylinders 23a, 23b are extended and the sorting levers 21, 21,.
.. Can be discharged to the product side by the sorting levers 21, 21.

The product B1 is discharged to the product side, and the remaining material B2 is
It can be returned to the front of the sawing machine M via the return conveyor 30 (FIG. 13A).

First, the cylinder 53 is extended and the stopper 5
With the sorting levers 21 raised to an intermediate position, the product B1 and the remaining material B2 on the feed conveyor 10 are separated. Then, the sorting levers 21, 21,... Are set to the discharge position, and the product B1 is discharged to the product side ((C) in the same figure). At the same time, the traversing conveyors 40, 40,. Then, the remaining material B2 is conveyed onto the return conveyor 30 and abuts against the stoppers 51, 51 and stops.
If the traversing conveyors 40 are returned to the horizontal position to be lower than the return conveyor 30, the residual material B2 is transferred from above the traversing conveyors 40, 40 to the return conveyor 30 ((D) in the figure). Thereafter, it can be conveyed to the front surface of the sawing machine M by the return conveyor 30.

Both the product B1 and the remaining material B2 can be returned to the sawmill M (FIG. 14A). That is, with respect to the product B1 and the remaining material B2 on the feed conveyor 10 ((B) in the figure), the stoppers 51, 51 ... are set up vertically beforehand, and the traversing conveyors 40, 40 ... are operated to return to the conveyor 30 side. Then, if this is set to the inclined position ((C) in the figure), both the product B1 and the remaining material B2 are returned to the conveyor 3
0 can be transported. Therefore, traversing conveyor 4
.. May be set to the horizontal position, and the product B1 and the remaining material B2 may be transferred to the return conveyor 30 ((D) in the figure).

When discharging the product B1 to the remaining material side and returning the remaining material B2 to the sawmill M (FIG. 15A), the sorting lever 2 is used.
1, 21,... And stoppers 51, 51,.

First, the stoppers 51, 51... Are set up beforehand, and the sorting levers 21, 21... Are pushed up to an intermediate position (FIG. 2B), whereby only the product B1 is supported on the sorting levers 21, 21,. can do. If the traversing conveyors 40, 40,... Are driven to the return conveyor 30 side to be in the inclined position (FIG. 10C), only the remaining material B2 can be transported onto the return conveyor 30.
Subsequently, when the horizontal conveyors 40, 40,... Are placed in the horizontal position (FIG. 3D), the remaining material B2 is transferred onto the return conveyor 30, and can be returned to the front of the sawing machine M. Then, the stoppers 51, 51 are retracted downward ((E) in the figure), and the traversing conveyors 40, 40 ... are returned to the conveyor 3
When the sorting levers 21 are returned to the retracted position while being driven to the 0 side to the inclined position, the sorting lever 2
1, 21,..., The product B1 on the
0 ... can be discharged to the remaining material side.

In the above description of the operation, when the sorting levers 21, 21... Are pushed up to the discharge position (FIGS. 12 and 13), the sorting levers 21, 21. Needless to say, it may be continuously pushed up at once.

When the stoppers 51, 51... Are raised vertically (FIGS. 13 to 15), the traversing conveyor 4
The products B1 and residual materials B2 conveyed to the return conveyor 30 side can be blocked on the return conveyor 30 by 0, 40. That is, the stoppers 51, 51... Protrude and disappear from the upper surface of the traversing conveyors 40, 40.
., 40,...

On the other hand, the sorting levers 21, 21,... Protrude and disappear from the upper surface of the feed conveyor 10 or the traversing conveyors 40, 40, and partially or entirely protrude from the upper surface of the feed conveyor 10 or the traversing conveyors 40, 40,. At the intermediate position and the discharge position, the ground material B, which has been cut into the product B1 and the residual material B2, is separated into right and left, the ground material B is supported at the intermediate position, and the ground material B is discharged to the product side at the discharge position. can do. Also, the traversing conveyors 40, 40
.. Appear on the upper surfaces of the feed conveyor 10 and the return conveyor 30 by taking the inclined position and the horizontal position, and can convey the ground material B to the feed conveyor 10 or the return conveyor 30 side.

In the above description, it is assumed that the number and the length of the blocks 10a, 10a,... Constituting the feed conveyor 10 can be arbitrarily determined. Further, the number of feed rollers 31, 31,... Constituting each block of the return conveyor 30 can be arbitrarily determined corresponding to each block 10a.

In general, as the feed conveyor 10, as in the case of the return conveyor 30, a type in which a large number of positively driven feed rollers are arranged in a line is often used. However, in such a form, the product B1 and the remaining material B2 receive a driving force only at a position in contact with the feed roller in the longitudinal direction, and it is difficult for the traveling direction to be correctly straight. This tendency is particularly remarkable when the product B1 and the residual material B2 are curved long objects. On the other hand, the illustrated feed conveyor 10
Are one kind of caterpillar type blocks 10a, 10a ...
, The product B1 and the remaining material B2 can always go straight forward even if it is a curved long object.
Therefore, the sawn lumber B can be easily and accurately sawn.

The feed conveyor 10 has a drive source disposed on the front side in the traveling direction of each block 10a.
11 should not be loosened or the operation of the front block 10a should not be delayed from that of the rear block 10a. When a large number of blocks 10a, 10a,... Are cascaded, instead of disposing the drive motors 15 for every two blocks 10a, 10a, the whole may be driven by one motor. Further, a plurality of drive motors 1
When using 5, 15,..., One or more arbitrary numbers can be selected and operated from the upstream side. In the case of a short sawn wood B, only a part thereof may be operated. Also,
The above points can be applied to the return conveyor 30 as they are.

The feed conveyor 10, the return conveyor 3
If 0 is divided into a plurality of blocks, the traversing conveyor 40 is disposed between each block, and the transverse transport of the sawn timber B can be ensured regardless of the length of the sawn timber B. In the case of a short sawn lumber B, only the block near the sawing machine M is operated,
Since other blocks can be stopped, power consumption can be reduced.

[0044]

As described above, according to the present invention, a feed conveyor, a return conveyor, a traversing conveyor,
Combined with a sorting lever for separating the sawn material on the feed conveyor, the sawn material discharged on the feed conveyor is separated into products and residual material by the sorting lever, and the feed conveyor side or the return conveyor side by the traversing conveyor. The product and the remaining material can be separately discharged to the product side and the remaining material side, respectively, or both can be discharged to the product side or the remaining material side at the same time. If used together, any sorting operation that returns one or both to the front of the sawmill can be performed, and since the sawing table that moves back and forth is not used, the overall configuration is simple,
There is an excellent effect that the required installation space is minimized.

[Brief description of the drawings]

FIG. 1 is an overall schematic perspective explanatory view.

FIG. 2 is an explanatory perspective view of a main part of a feed conveyor.

FIG. 3 is a perspective view of a main part of a sorting lever.

FIG. 4 is an enlarged sectional explanatory view taken along line XX of FIG. 1;

FIG. 5 is an explanatory perspective view of a main part of a return conveyor.

FIG. 6 is a perspective view of a main part of a traversing conveyor.

FIG. 7 is a perspective view of a main part configuration of a stopper.

FIG. 8 is an enlarged sectional explanatory view taken along the line YY in FIG. 1;

9 is an enlarged explanatory view taken along the line ZZ in FIG. 1;

FIG. 10 is an operation explanatory view (1).

FIG. 11 is an operation explanatory view (2).

FIG. 12 is an operation explanatory view (3).

FIG. 13 is an operation explanatory view (4).

FIG. 14 is an operation explanatory view (5).

FIG. 15 is an operation explanatory view (6).

[Explanation of symbols]

 B ... sawn wood M ... sawing machine 10 ... feed conveyor 10a ... block 21 ... sorting lever 30 ... return conveyor 40 ... traversing conveyor 51 ... stopper

Claims (3)

(57) [Claims] 1. A feed conveyor disposed behind a sawmill, a plurality of sorting levers that protrude and retract on an upper surface of the feed conveyor, and separate left and right sawn materials on the feed conveyor, and are arranged in parallel with the feed conveyor. A return conveyor for transporting the sawn timber to the front of the sawing machine; and a feed conveyor and a return conveyor. The return conveyor is disposed so as to traverse the feed conveyor and the return conveyor. A traversing conveyor for transporting the material to the return conveyor side or the feed conveyor side, wherein the sorting lever takes a discharge position for discharging the sawn material on the feed conveyor or the traverse conveyor. Sawing machine for sawing machines. 2. A sawing machine according to claim 1, further comprising a stopper which protrudes and retracts on an upper surface of the traversing conveyor and controls a progress of the sawn wood conveyed to the return conveyor side by the traversing conveyor. A sawing sorting device. 3. A sawing machine sorting machine according to claim 1, wherein the sorting lever has an intermediate position for supporting the sawing machine on the feed conveyor or the traversing conveyor. .