JPH03275302A - Classification device for lumbering - Google Patents

Abstract

PURPOSE:To enable efficient sawing operation by eliminating a waiting time, by a method wherein the title device is provided with a waste material taking out part and product material taking out part, a classification part is provided with a taking-out side and return side classification conveyors further and a product material collecting conveyor and a waste material taking out part side is provided with a product material collecting rack. CONSTITUTION:A scantling conveyor 2 side is provided with a waste material taking- out part 7 by adjoining to a classification part 4S and a return conveyor 3 side is provided with a product material taking out part 8. Then conveying surfaces of the scantling conveyor 2 and return conveyor 3 are provided with a taking-out side classification conveyor 20 and return side classification conveyor 23 in a freely advancing or retreating manner at the classification part 4S further. On the one hand, the upper part of the classification part 4S is provided with a product material collecting conveyor 210 so that the same crosses a space between the scantling conveyor 2 and return conveyor 3. A waste material taking-out part 7 side is provided with the taking- out side classification conveyor 20 and a product material collecting rack 214 collecting a product material. Then a material A2 which has been sawed is removed immediately from the scantling conveyor 2 so that the upper part of a scantling line is made clear.

Description

[Detailed Description of the Invention] (Object of the Invention) <Industrial Application Field> The present invention relates to a sawmilling device, and in particular, a sawmilling device that can be used in a so-called rip saw that divides plate-shaped materials into smaller pieces. It is related to the device.

<Background of the Invention) When sawing logs into planks and cutting them vertically into small pieces to produce square lumber or boards, the lumber is transported around a sawing device such as a circular saw or band saw. A device is used that combines various conveyors for efficient grinding work. A typical example of the conventional type is shown schematically in FIG. 9, in which a sawing conveyor 2' is provided over a range before and after the circular saw machine 1' in the feeding direction of the sawing machine 1'. The return conveyor 3 is moved along the grinding conveyor 2' at a position away from the grinding track.
′ is installed, and the supplied board material is sawn and split to take out the waste wood, the product material is taken out, and the return material to continue sawing and splitting is collected.By the way, the procedure for the sawing work is , for example, a plate-shaped material with bark exposed on both ends, so-called ears (hereinafter referred to as double-eared material An).
When sawing product material A2 such as small diameter square timber from
First, one edge aQ is sawn off, and the other edge al remains (hereinafter referred to as one edge material At).Next, using the sawn surface as a reference, place this on a ruler board. By moving one or both of the saw blade and the saw blade, a step is taken to cut the saw to a predetermined size, and this operation is repeated thereafter. Finally, there is no longer any remaining material from which the product material can be sawn off, leaving almost only the other ears, which are then taken out as waste and used as chips and the like. In this actual work, instead of repeating the above operation for each plate-shaped double-sided material A, it is usual to collect several double-sided materials A as shown in Figure 9(b). Process up to the stage where only one ear part a6 is sawn off and accumulate it, and when one ear part ag has accumulated a certain number of pieces of single ear wood At that has been sawn off, this is then collected for each village. Pass through the grinding device over and over again,
A so-called rotary sawing process is performed, in which as many square timbers or boards as can be sawn are cut into pieces.In this case, in the conventional method mentioned above, in particular, if the edge part al) of timber A is first sawn, the 10th
As shown in Figure (a), the one-sided material A, which becomes the returning material, is moved to the returning conveyor 3' side without being bitten, and then transferred to the returning conveyor 3'.
The upper part returns to the sawing preparation position side, and on the other hand, waiting for this, the sawn ear part a (1 is pushed up from below as shown in FIG. 10(b) and transferred to the return conveyor 3' side. The waste material is then dropped into the waste material removal section 7'.

However, this operation is performed only after the return material is sorted from the department side and sent out from the department side by the return conveyor 3'. Because of this, the next material could not be sent in, and this waiting time wasted, reducing overall work efficiency.

(technical matters attempted to be developed) The present invention was made in view of this background,
An attempt was made to develop a lumber sorting device that allows efficient sawing and sawing work by eliminating so-called waiting time by allowing the sawn wood to be immediately removed from the sawing and splitting conveyor.

(Structure of the Invention) Means for Achieving the Object The first invention of the lumber 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. The sawing and splitting conveyor and the return conveyor transport the material in a circular manner to perform sawing and splitting, and the sorting is carried out in a device that sorts the sawn and split material according to the sawing and splitting processing conditions. A waste material take-out part is provided adjacent to the grinding conveyor side, and a product material take-out part is provided near the return conveyor side, and the sorting section is arranged so that the waste material removal part protrudes from and disappears from the conveyance surface of the grinding conveyor and the return conveyor in the part. A conveyor is installed for the take-out side sorting and a conveyor for the return side sorting, while a product material collection conveyor is installed at the upper blade to cross between the grinding conveyor and the return conveyor, and a conveyor is installed for the sorting on the removal side. On the part side, the take-out side sorter is equipped with a conveyor and a product collection rack for collecting product materials.

In addition to the above-mentioned requirements, the second invention of the lumber sorting device according to the present application is characterized in that, in addition to the above-mentioned requirements, the sorter is equipped with a waste material collection conveyor extending from the product material take-out part to the waste material take-out part. It is something that

These inventions are intended to distantly achieve the above object.

<Operation of the Invention> In the present invention, the sawn material is immediately removed from the sawn and split conveyor to leave the sawn and split line empty.

As a result, it is possible to start sawing the next piece of wood almost immediately after sawing is completed. The sawn wood is the N
a3, the waste materials are dropped into the waste material take-out section, and especially for product materials, they are three-dimensionally sorted by a product material recovery conveyor and transferred to the product material take-out side through the upper part of the section.

<Examples> The present invention will be specifically described below based on illustrated examples. The main members constituting the lumber sorting device of the present invention are a sawing conveyor 2 and a return conveyor 3, which are provided so as to partially surround the sawing device l that directly performs the sawing action, and a range on the side where the sawing is completed. Barrel sorting is done in section 4S, and sorting is done in device 4.
That is. The grinding conveyor 2 is arranged along the cutting line of the grinding device 1, and the return conveyor 3 is arranged almost along the grinding conveyor 2 from the grinding preparation position to the sorting after grinding up to the section 4S. It is set in the range between. A sorting device 4 is provided on the rear side in the grinding direction so as to cross the grinding conveyor 2 and the return conveyor 3. This grinding conveyor 2
A material supply section 5, a return material storage section 6, a waste material extraction section 7, and a product material extraction section 8 are provided around the and return conveyor 3. To explain each of these members below, the sawing and splitting device l is an example to which a double sawing circular saw is applied, and a sawing and splitting device motor M is mounted on the sawing and splitting device frame 11 to drive the sawing and splitting device. Main shaft 12 connected directly or indirectly to the shaft
However, as an example, two circular saw blades 13 (if it is necessary to indicate each separately, the circular saw blade farther from the motor M side is distinguished as 13A, and the circular saw blade closer to the motor M side is distinguished as 13B) are each independent. The main shaft 12 has a double structure that allows the overhang dimension to be adjusted.
can be attached to. Further, a ruler plate 14 is provided on the front side of the circular saw blade 13 in the sawing direction so that the so-called step can be freely set. Further, upper pressing rollers 15 are provided on the front side and the rear side in the sawing direction with the circular saw blade 13 in between. Incidentally, spike rollers or the like may be added to hold the side surfaces of the material A as appropriate.

Further, in the embodiment shown in FIGS. 1 to 3, the sawing and splitting device 1 is provided on the material supply section 5 side, but it is provided in the embodiment shown in FIGS.
It may also be provided on the opposite side to the material supply section 5, as in the conventional type shown in FIG. Next, talking about the grinding conveyor 2 and the return conveyor 3, first of all, these are formed on the upper surface of a common conveyor frame 16, and the grinding conveyor 2 and the return conveyor 3 are both conveyed. It has a large number of rollers 17, 18 perpendicular to the direction, and takes the form of a so-called roller conveyor. Of course, the transportation means for both the grinding conveyor 2 and the return conveyor 3 are not limited to roller conveyors, and it goes without saying that a method such as a chain conveyor or a slat conveyor can be used depending on the purpose. 17.1
As for 8, the specifications can be selected in whole or in part as appropriate, such as using a free roller that is not driven or allowing it to be driven. A sorting device 4 having the technical configuration of the present invention is provided in the sorting section 4S on the side where the sawing is completed. First, grinding conveyor 2 and return conveyor 3
A conveyor 20 for the take-out side sorting and a conveyor 23 for the return side sort are provided so as to be freely retractable from the conveying surface formed by the conveyance surface. Among these, the conveyor 20 for sorting on the take-out side is configured such that it can be freely folded and attached to a base shaft 21 disposed at the edge of the conveyor frame 16 on the side of the grinding conveyor 2 in the form of a plurality of arms. For example, a chain 22 that performs a conveying action is suspended on the upper surface in the form of a chain conveyor. On the other hand, the return side sorting is provided with a conveyor 23 opposite to this, and this also includes, for example, a base shaft 24 with a plurality of arm-shaped members arranged near the return conveyor 3 side.
The chain 25, which essentially constitutes a chain conveyor, is provided on the upper surface of the conveyor belt. It should be noted that when the conveyor 20 for the take-out side sorting and the conveyor 23 for the return side sort are both in the laid down state, their conveying surfaces are set at positions sufficiently sunk below the conveying surfaces of the rollers 17 and 18. In addition, this sorting is further provided in the section 4S by a sorting member that can come out and go from below as a member for actively sorting sawn product materials and waste materials, or on an extension of the sawing track of the circular saw blade 13. For the appropriate sorting to be provided, it is possible to incorporate a known structure such as a board as necessary. That is, as in the embodiment shown in FIG. 7, a sorting plate 201 is provided on the extension of the sawing path of the circular saw blade 13, and a push-up device 202 is further provided along this on the return conveyor 3 side. As a result, the material remaining on the push-up device 202 side (mostly waste material) is pushed up and then pushed out over the board 201 to the waste material removal section 7 side. This device is already a known device, and for the sake of clarity, the lifting device 202 has a lift frame 203 that is shifted up and down by a push-up cylinder 204, and a rotating support plate 205 is provided on the upper end side of the lift frame 203. This device is rotated by a shift cylinder 206. Further, as a characteristic feature of the present invention, a product material recovery conveyor 210 is provided above the sorting section 4S in a so-called three-dimensional manner. In other words, the product material recovery conveyor 210 has a so-called chain conveyor 16 by means of a chain 211 which essentially performs the conveyance function.
The conveyance track is set so as to substantially follow and cross the plane formed by the grinding conveyor 2 and the return conveyor 3 above the sorting section 4S. A product material recovery lift 212 is provided to the product material recovery conveyor 210 as a device for relaying the sawn product material A2. This product material recovery lift 212 is a column-shaped frame 2 installed on the waste material removal section side of the sawing conveyor 2.
13, a product material collection rack 214 is supported so as to be movable up and down, and the product material collection rank 214 is driven up and down by a long lift cylinder 215. The product material collection rack 214 constitutes a so-called chain conveyor by suspending a chain 216. on the other hand,
A product material/return phase sorting device 218 is provided on the product material take-out section 8 side of the product material recovery conveyor 210. This one is base 2
It is an arm-shaped member that rotates around 19, and its free end side switches between a position facing the end of the product material collection section side of the product material collection conveyor 210 and a position facing the return conveyor 3. It rotates like this. Note that 220 is an auxiliary chute and 221 is a stopper pin.

The base shaft 219 of this product material/return phase sorting device 218
A product material discharge chute 223 is connected to the side. Furthermore, in the embodiment shown in FIG. 4, in order to utilize the sorting section 4S more three-dimensionally, a waste material collection conveyor 225 is provided below it, and this waste material collection conveyor 225 is used for the sorting section 4S.
Below S, from the product material extraction section 8 side to the waste material extraction section 7
The range up to is set as the transport action trajectory. Incidentally, reference numeral 226 is a waste material collection chute for smoothly guiding the waste material to the waste material collection conveyor 225. Also, waste material collection conveyor 2
A waste material removal conveyor 227 is provided on the waste material removal section side of 25. Next, the equipment that constitutes the material supply section 5 will be described.
The material supply section 5 is substantially constituted by a double-sided material supply device 27, and this material supply section is provided near the side of the sawing and splitting conveyor 2 on the front side in the sawing and splitting direction. It is preferable that this both-side material supplying device 27 uses a so-called chain conveyor in which a supplying device chain 29 is suspended from the upper surface of a supplying device frame 28. Of course, if there are restrictions on the layout of each factory, etc., or at other appropriate requests from the factory, the material A processed at another location may be supplied to a cart or the like in an accumulated state without permanently installing the double material supply device 27. It is possible to come. Of course, it is also possible to use a three-dimensional storage device such as a return material storage device in the return material storage section 6 as described later. Further, a feeder 30 for material A is provided adjacent to the material supply section 5 so as to cross between the grinding conveyor 2 and the return conveyor 3, and this device has a base shaft on the material supply section 5 side. 31 is provided to make the feeding device 30 freely foldable, and a chain 32 is suspended over the top surface of the feeding device 30 to form a so-called chain conveyor shape. When this conveyor is laid down in the non-operating state, it is set to be sufficiently sunk below the conveying surface of the slicing conveyor 2 and the return conveyor 3. Further, a pair of front and rear pin rulers 33 are provided at positions lined up with the ruler plate 14 so as to be freely retractable, and these pin rulers 33 are moved integrally with the ruler plate 14 in the walking direction. Next, the return retaining part 6 will be explained. In this embodiment, this part is characterized by being provided in a range other than the material supply part 5 and the product material take-out part 8. In the example, the position facing the material supply section 5, that is, the material supply section 5
and are provided at positions facing each other with the grinding conveyor 2 and return conveyor 3 interposed therebetween. The return holder 34, which substantially constitutes the return holder 6, is constructed by suspending an endless chain 36 against a return holder frame 35 that is fully extended in the vertical direction, for example. On the other hand, a support attachment 37 protruding in the horizontal direction is provided, and the one-sided material At is stored three-dimensionally on this support attachment 37. A kicker 38 is provided inside the return retaining device 34 as a device for taking out the one-sided material A stored therein. For example, one end of an arm-shaped member having an L-shape is attached to a base shaft 39, rotation is transmitted from a drive shaft 40 to this base shaft 39 via a chain 41, and the base shaft 39 is rotated. Support attachment 3 at the tip of 38
The one-sided material A1 on top of 7 is returned and kicked out to the conveyor 3 side. Of course, in this case, the feeding device 30 is actually waiting at a position where it can pick up and stop receiving the material, and the material is transferred onto it.

The lumber sawing apparatus of the present invention has the specific structure as described above, and the mode of sorting operation using this apparatus will be explained below.

i) Processing of both selvedge material When the selvedge material A is supplied onto the sawing conveyor 2 from the both selvedge material supplying device 27, the work of sawing one of the selvedges ag from the both selvedge material AO is first performed.

That is, the double-sided material AO placed on the double-sided material supplying device 27 in the material supply section 5 is sequentially transferred onto the sawing conveyor 2 by an appropriate worker or an automatic transfer device. At this time, in this embodiment, the sawing device l has two circular saw blades 13A, 13.
B, but it is sufficient to act on only - blades, so for example, sawing is performed by the circular saw blade 13A, and the other circular saw blade 13B is sufficiently moved toward the motor M side. . Then, the material A is fed forward with the circular saw blade 13A aligned with the position of one of the ears aH to be sawn off.

This operation can be done by the worker manually pushing the material A up to the rollers that are being driven appropriately, or if the rollers on the front side of the sawing conveyor 2 in the cutting direction are freely drivable, they can be driven as appropriate. Then, the double-sided material AO is fed into the sawing and splitting device 1. When this happens, one of the ears aO is chopped by the grinding device 1, and the sorted material is sent to the section 4S. In such a state, both the lug portion aQ and the one-lipped material At serving as the return material are immediately removed from the sawing and splitting conveyor 2 side. In other words, this operation is carried out by the conveyor 20 supporting the scrap edge aO in a slightly raised state and driving the chain 22, so that the waste material can be sorted by the waste material take-out conveyor as shown in FIG. 5(a). 227, and on the other hand, the return material A, which is sorted on the return side, is moved so as to retreat to the return conveyor 3 side by the conveyor 23 acting in the same manner. Note that the product material collection rack 214 is set in an appropriately retracted state, such as staying in an elevated position, so that there is no support for the fall of the ear part aQ. As can be seen from the operations described above, all parts of the wood after the sawing is completed are immediately removed from the sawing and cutting conveyor 2. In addition, single-sided material A is used as return material.
Normally, the L is not ground immediately after that, but is stocked in the return retaining device 34 in the return retaining section 6 to wait for the next processing. In this case, as shown by the imaginary lines in Fig. 4 and Fig. 5 (b), the ear part a (if it is possible to saw the lumber in 1 into a relatively wide width and re-grind it, it is similar to the product material recovery described later). Product material recovery conveyor 21 using this method
0, and is returned onto the return conveyor 3 again from the product/return conveyor sorting device 218. Of course, if the apparatus is designed without such processing as a premise, it is not necessary to provide the product material/returner separation device 218.

ii) Grinding Next, the process for sawing the product material A2 by sequentially returning the one-edge material At from the sawing conveyor 2 and circulating it on the conveyor 3 will be described. In this case, the surface of the ear part aO that has been made smooth by sawing is applied to the ruler plate 14 so that the dimensions can be set, and the sawing is performed sequentially. Since it has a saw blade 13, in particular, the product material A
Two pieces or two pieces of 2 will be cut off. At the time when this sawing and splitting is done, as shown in FIG.
On the other hand, the single-sided material At to be collected again is located on the return conveyor 3 side, and as for the single-sided material Al to be milled, as mentioned above, the return-side sorting is immediately returned by the conveyor 23. It is sent to the conveyor 3 side. On the other hand, at the same time, product material A2 is sorted on the take-out side by conveyor 2.
0, the waste material is transferred to the waste material removal section 7 side. At this time, the product material collection rack 214 in the product material collection lift 212 is lowered and stands by with its transport surface almost aligned with the level of the conveyor 20 on the removal side, and the chain 21
6 causes the product material A2 to travel in the receiving direction. As a result, the product material A2 is transferred onto the product material collection rack 214, and then the product material collection rack 214 is moved to the lift cylinder 215.
It rises due to the elongation of and stops at the position of the product material recovery conveyor 210. After doing this, the product material collection rack 21
The chain 216 in 4 moves in the direction of loading the product material A2 onto the product material recovery conveyor 210 side, and on the other hand, the chain 211 in the product material recovery conveyor 210 also runs from the waste material removal section 7 side toward the product material removal section 8 side. As shown in FIG. 6(a), the product material A2 is dropped into the product material discharge chute 223 side. In this case as well, product material A2 is sawn and divided into parts 4 and 4.
When reaching S, both the product material A2 and the turning material A are immediately removed from the sawing and splitting conveyor 2, so that the next material A can be fed.

iii) Elimination of other ears As this kind of grinding progresses, finally the turning material A
There is no room left to saw the product material A2 from a, and the remaining portion, the ear portion al, is collected as waste material. For example, in the embodiment shown in FIG. 7, when the product material A2 is sent to the product material collection rack 214 side by the method described above,
As if following this, it is immediately pushed upward by the push-up device 202, and the sorted material goes over the board 201, and the take-out side sort is dropped onto the conveyor 20 side, and the take-out side sort is placed on the conveyor 20 so as to follow the product material A2. The waste material is transported along the top toward the waste material removal section 7 side. At this time, when the product material A2 is transferred on the conveyor 20 on the take-out side, the product material collection rack 214 waits for it, and the receiver ascends immediately after taking it.

In such a case, the ear part a1 that is sent after that will be removed from the waste material removal section 7 due to the absence of the product material collection rack 214.
The waste material is dropped onto the waste material removal conveyor 227 at the waste material removal conveyor 227. On the other hand, in the case of the embodiment shown in FIG. 6(b), the ear portion al
is returned to the conveyor 3 side and collected. In this case, the conveyor 23 passes through the return conveyor 3 and takes in the return side sorting to the product material take-out section 8 side. In this case, the return-side sort falls onto the waste material collection conveyor 225 from the base end side of the conveyor 23, and is transferred to the waste material removal section 7 side so as to cross below the section 4S, and is collected. As can be understood from the above description, the product material collection rack 214 is not only of the type that moves vertically like an elevator, but also of the type that moves in the vertical direction like an elevator. It may be of a type in which it is supported and the free end side can be switched between the level of the sorting section 4S and the level of the product material collection conveyor 210.

(Effects of the Invention) The present invention has the configuration described above, and the sawn material can be immediately removed from the sawn and split conveyor 2 after the sawing is completed, regardless of the work type. This makes it possible to immediately input the next lumber, eliminating so-called waiting time and allowing efficient lumber work.

[Brief explanation of drawings]

Fig. 1 is a perspective view showing a lumber sorting device according to the present invention, Fig. 2 is a plan view of the same, Fig. 3 is a front view of the same, and Fig. 4 is a lumber sorting device of the present invention. FIGS. 5 to 7 are explanatory diagrams showing how the lumber sorting apparatus of the present invention operates, and FIGS.
The figure is an explanatory diagram showing the working conditions when sorting double-sided wood into single-sided wood and selvedge parts, as well as the working process when cutting the selvedge into wide pieces and grinding again. Figure 6 shows how one-sided wood is divided into product materials. Fig. 7 is an explanatory diagram showing the working conditions when sorting one-sided timber into product materials and selvedge parts. Explanatory diagram showing an embodiment in which processing is performed, No. 8
The figure is an explanatory diagram showing another example of product material recovery rank, No. 9
．． FIG. 10 is an explanatory diagram showing a conventional lumber sorting device and its problems. l; Grinding and splitting device 2; Grinding and splitting conveyor 3; Return conveyor 4; Sorting is done by device 4S; Sorting is done by section 5; Material supply section 6; Device frame 12; main shafts 13.13A, 13B; circular saw blade 14; ruler plate 15; upper press roller 16; conveyor frame 17.18; 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; Equipment frame 36; endless chain 37; support attachment 38; kicker 39; base shaft 40; drive shaft 41; Lifting frame; push-up cylinder; rotating support plate; shift cylinder: product material recovery conveyor; chain; product material recovery lift; frame; product material recovery rank; lift cylinder: chain: product material/returner separation device; pivot; auxiliary Chute: Stopper pin: Product material discharge chute: Waste material collection conveyor 226; Waste material collection chute 227; Waste material removal conveyor A; Material Ao; Double-sided material ALi Single-sided material A2 i Product material Aai Turning material A6. al; ear M; motor

Claims (2)

[Claims] (1) A sawing and splitting conveyor set to pass through a sawing and splitting device and a return conveyor running parallel to the sawing and splitting conveyor are provided, and the wood is cyclically transported by the sawing and splitting conveyor and the return conveyor to split the wood. In this apparatus, a waste material extraction section is provided adjacent to the sorting section near the sawing conveyor side, and a waste material removal section is provided near the return conveyor side. A take-out section is provided, and a take-out sorting conveyor and a return sorting conveyor are provided in the sorting section so as to be able to appear and retract from the conveyance surface between the split conveyor and the return conveyor, while above the sorting section, the split conveyor and the return conveyor are provided. A sawmill sorting device characterized in that a product material recovery conveyor is provided to cross the conveyor, and a product material collection rack for collecting the product material and the removal side sorting conveyor is provided on the waste material removal section side. . (2) The lumber sorting device according to claim 1, further comprising a waste material collection conveyor extending from a product material take-out part to a waste material take-out part below the sorting part.