JPS594281B2 - Inclined bandsaw machine with material processing equipment - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a band saw machine, and more particularly to an inclined band saw machine having a structure suitable for further cutting boards from the remaining material called a backboard after sawing square timbers from logs. be.

When sawing so-called backboards, one or several boards are cut from this, and the work is done by integrating the following operations.

In other words, the work of holding the wood so that it does not fall during sawing or preparation, the work of pulling the sawn wood back into the hand, and the work of separating waste wood (chip material) that cannot be used as board material and wood that can be cut into planks. Sorting is work, etc., and these works are done all at once.

By the way, since the shape of the back plate that is the object of the present invention is almost a flat plate, with a normal band saw machine, it is necessary to hold the back plate, which is sawn material, so that it does not fall over, and to carry out sawing or preparation work. However, the work was extremely troublesome.

For this reason, a horizontal bandsaw machine (one in which the band saw blade that performs the sawing action runs horizontally) has been developed and is in use so that the back plate can be placed horizontally to perform sawing.

This type is superior in terms of workability because the backboard of the sawn wood is originally in a fallen state (placed horizontally).

However, when sawing and splitting, the remaining wood rests on the top of the running band saw blade, causing the wood to be repelled by the running band saw blade and swim away, preventing smooth processing.

At the same time, the materials for the sawn products tended to be misaligned, and sorting was not very efficient in terms of work.

Horizontal sawing also had the disadvantage of poor drainage of sawdust, which prevented smooth sawing.

The inventor of the present invention sought to provide a device capable of improving overall workability in such lumbering operations. First, in order to facilitate the setting of the back plate, the band saw was tilted. In addition, in order to make it easier to sort the materials, a material feeding device is installed in the space between the upper and lower tires of the bandsaw machine (the so-called foot roller), and a sorting device is also installed, and a return conveyor is installed to make it easier to saw the materials again. These are arranged in parallel.

Proceeding to the present invention, the present invention will be explained in detail based on the illustrated embodiment. Reference numeral 1 is a band saw machine, and the basic configuration is the same as that of a conventional band saw, except that the upper part is tilted backward as a whole. It has the following characteristics.

The machine frame F consists of a base frame F1 that is separate from the base frame F1 and a movable frame F2 that slides on the base frame F1.The two become separate bodies at the slide part 2, and the movable frame F2 slides on this base frame F1 and moves on it. It is to go out.

A spall 3 is attached above the movable frame F2 in a conventional manner so as to be able to rise and fall freely, and an upper tire 4 is attached to the movable frame F2 via a bearing.
support.

On the other hand, a lower tire 4' is attached to the lower bearing of the movable frame F2, and an endless band saw blade 5 is suspended between the upper and lower tires 4, 4'.

Of these upper and lower tires 4.4', the upper tire 4 has its axle position shifted rearward compared to the lower tire so that the whole is inclined, and accordingly, the band saw blade 5 also has its sawing action trajectory inclined. let

The material is sawn and split by passing through a space S (a space called a foot roller) formed between the upper and lower parts 4 and 4', and the following material feeding means is provided to pass through this space.

In other words, the material feeding means can be roughly divided into three types in order: the first is the material feeding conveyor 6, the second is the material sawing and splitting holding conveyor 7, and the third is the sawing and splitting conveyor provided at the subsequent stage. This is a material receiving device 8.

The first material feed conveyor 6 is, for example, a combination of two slat conveyors tilted at right angles, and includes a lower bearing conveyor 9 and an inclined part bearing conveyor 10.

Of course, any suitable type of conveyor can be installed, and the two conveyors may be driven together, or one (often the lower bearing conveyor 9) may be driven, and the slope bearing conveyor may be driven. 10 may be a free roller.

The point is that the action of feeding the material backboard is sufficient.

Next, regarding the sawing and splitting holding conveyor 7, a relatively short slat conveyor installed in the sawing and splitting section of the band saw is used.

This sawn split holding conveyor 7 has its upper side tilted backward, and a pair of press rollers 11, 11' are provided on the front surface thereof.

Reference numerals 12 and 12' are swingable support arms for the presser roller, and 13 and 13' are drive motors.

The sawing and splitting conveyor 7, presser rollers 11, 11', and their driving means are fixed to the base frame F1 side, and the band saw blade 5 side is in a relative position according to the movement of the movable frame F2. It is used to start the walk by changing the

Furthermore, to explain the sawn material receiving plate device 8, which is the third feeding means provided in the latter stage, this device does not actively feed the material because the material is sent out by each feeding means in the previous stage. .

That is, the flat support plate 15 and the inclined part support plate 16 are
The machine frame F consists of a degree angle.

It is something that is attached to.

Of course, this may be constructed with a slat conveyor or the like to actively transport the material A, or a roller conveyor or other means for facilitating transport may be used.

It is not necessarily limited to the examples.

The following devices are attached oppositely to the means for feeding these materials.

First, a raw material feeding device 17 for feeding unprocessed material (also referred to as raw material) is provided opposite to the feeding conveyor 6, which is the first feeding means.

This conveyor has several rows of chain conveyors 17a arranged in parallel, and a roller conveyor 17 whose tip is lowered toward the tip.
b.

Incidentally, the tip of the roller conveyor 17b does not reach the feed conveyor 6, but this uses the tip of the return conveyor 18 of the return material among the materials to reach the feed conveyor 6.
It is connected to

On the other hand, a device 19 for sorting the materials is provided opposite the sawn material receiving device 8, which is the third feeding means.

The device 19 for sorting the materials is the machine frame F.

On the other hand, below the sawn material receiving device 8, a sorting claw 20 and a return communication conveyor 21 are provided above, the tip of which vibrates.

The sorting claw 20 is attached to the machine frame with its base rotation fulcrum 22, and the machine frame F is provided almost parallel to the return communication conveyor 21.

A fulcrum 24 on the side of the base rotation fulcrum 22 is held by a movable support rod 23 which is configured to be slidable in a telescopic manner.

The return communication conveyors 21 are provided at appropriate intervals and reach the return conveyor 25 for the return material while rising somewhat.

Incidentally, to explain the materials here, the material in the state of the backboard is called the raw material and is designated by the symbol A1, and the material after sawing and splitting is called the product A2.
The material that can still be sawn and cracked after A2 is removed is designated by the symbol A3 as a return material, and the material that can no longer be cut into sheets is designated by the symbol A4 as a chip material.

When explaining this without necessarily distinguishing it, it is simply "material".
It is called.

On the other hand, below the return communication conveyor 21 and the sorting claws 20, a product take-out conveyor 26 and a chip material take-out conveyor 27 are arranged horizontally and oppositely.

A return conveyor 2 communicating with the return communication conveyor 21
Reference numeral 5 denotes a roller conveyor installed from one end of the apparatus to the other, and a reloading conveyor 28 for the return material A3 is provided at the portion connected to the return conveyor 18.

This is a so-called chino conveyor equipped with pawls 29, and by running the chino, the pawls 29 send the material to the return conveyor 18 side.

This device has the configuration described above,
As an example, we will take the following processing.

[) Raw material supply Raw material A, the back plate of the barrel, is supplied from the raw material feeding device 17 and falls from the roller conveyor 17b at the tip to the return conveyor 18 as shown in Fig. The paper is conveyed by hand in a diagonal manner so as to lean against the feed conveyor 6.

il) Grinding and splitting process The raw material A1 (or sometimes the return material A3) sent by the feed conveyor 6 is held at its tip by being pushed by the pressing roller 11 on the sawn and splitting material holding conveyor 1. , the band saw blade 5 running diagonally cuts the material and sends it sequentially backward.

1ii) The raw material A1 that has been sawn is sorted into at least one product A2 and the remaining return material A3 (chip material A4 when no more products can be taken) into a trough-shaped sawn material receiving device. It will be sent up to 8.

At this time, for sorting in the device 19, the claw 20 is set at the position indicated by the solid line as shown in FIG.
3 is first placed on the return conveyor 21.

Since the chip material A4, which can no longer be used as a product, is of short size, it falls downward from between the chains forming the return communication conveyor 21 and is taken out from below by the chip material take-out conveyor 2T.

On the other hand, after this, as the movable support rod 23 moves forward, the sorting claw 20 moves as shown by the imaginary line in FIG. It's complicated.

iV) Processing of return material After one product is removed from the raw material A1, if it is possible to further remove the end plate, the return material A3 is transferred from the return communication conveyor 21 to the return conveyor 25 as shown in Fig. 5. sent.

In such a case, the return material A3 is returned by the return conveyor 25.
is returned to the feed conveyor 16, which is the starting point for grinding.

At that point, the claw 29 pushes out the return material A3 due to the movement of the reloading conveyor 28, and the return conveyor 1
It will be replaced with 8.

Thereafter, the operator transfers the return material A3 onto the conveyor conveyor 6 and further grinds it according to the method described above.

The present invention has the structure described above, and since the upper part of the bandsaw blade is tilted backwards, the material does not fall when setting the material, and the work can be done easily. be.

Further, since a material feeding device and the like are further attached, the work can be carried out rationally, and the work effort can be reduced.

[Brief explanation of the drawing]

Fig. 1 is a side view showing the band saw part of an inclined band saw machine equipped with the material processing device of the present invention, Fig. 2 is a plan view of the device, and Fig. 3 is a front view showing the band saw part. FIG. 4 is a side view showing a portion of the raw material feeding device, and FIG. 5 is a side view showing the sorting device. 1; Band saw machine, 2; Slide part, 3; Spall, 4; Upper tire, 4'; Lower tire, 5; Band saw blade, 6: Feeding conveyor, 7; Conveyor for holding sawn material, 8; Receive sawn material device, 9;
Lower bearing conveyor, 10; Incline bearing conveyor, 17;
Raw material feed device, 18; Return conveyor, 19; Sorting device, 25; Return conveyor, 26: Product take-out conveyor, 27; Chip material take-out conveyor, F; Machine frame, F,; Base frame, F2; Movable frame, Fo: machine frame, A1: raw material, A2 s product, A3: return material, A4: chip material, S: space between upper and lower tires.

Claims (1)

[Claims] 1. The frame is composed of a base frame and a movable frame that slides above the base frame. 2. The upper and lower tires are attached to the movable frame, and the upper tire is attached so as to be shifted rearward with respect to the lower tire. A band saw blade is suspended between the tires to form an inclined band saw machine in which the upper part of the band saw blade is tilted backward, and a space formed between the upper and lower tires is provided with a means for feeding material passing therethrough, This feeding means is composed of a material feeding conveyor, a sawn split holding conveyor, and a sawn material receiving device, and these are formed by forming the supporting surface of the material with the upper side tilted backward to the same extent as the band saw blade. A raw material feeding device is provided opposite to the feed conveyor, while a material sorting device is provided opposite the sawn material receiving device, and between the sorting device and the material feeding conveyor, An inclined bandsaw machine equipped with a material processing device characterized by being provided with a return conveyor.