JPS588963B2 - wood debarking equipment - Google Patents

Description

[Detailed description of the invention] This invention relates to a novel wood stripping device.

There is a drum barker that has been commonly used to perform the barking action on wood, but this has a cylindrical drum installed horizontally, and while the drum is rotating, wood is fed through the inlet. This wood was swung wildly in a drum, and the friction between the pieces of wood caused debarking.

However, this type of drum barker has the disadvantage that although both ends of the wood are stripped, the central portion is often not sufficiently stripped.

Therefore, as an improved version of this rotary drum type drum barker, the present inventor first bored a long hole in the rotating drum body, and arranged a rotating circular saw blade so that the blade faced the inside of the drum body from this long hole. The company developed a drum barker that made cuts in the outer skin of the wood and peeled it off.

Rotating circular saw blades were very effective for debarking, but because the rotating circular saw blade was disposed on a rotating drum body, the structure was complicated and manufacturing costs were high.

On the other hand, with this model in which the circular saw blade was exposed inside the drum body, it was confirmed that the wood would fly wildly even if the drum body was stopped and the circular saw blade was rotated.

In addition, as in Japanese Patent Publication No. 45-28528, a long hole is bored in the drum body without rotating the drum body, and a beating rod is arranged to pass through the long hole into the drum body, and the drum body is rotated. A peeling machine that is slightly inclined toward the exit has been considered, but in this type, the long holes are only drilled on one side, so the peeling force is weak, and the hammer rod does not cut the wood. It rotates backwards as soon as you hit it, so the wood doesn't dance around inside the drum.

The fact that the wood does not dance around inside the drum means that the wood cannot be expected to peel against each other, so the peeling force is weaker.Also, since the wood is constantly in contact with the inner wall of the drum, friction causes the drum to tilt slightly. If you just let it move, the wood will not move smoothly toward the exit.

On the other hand, if the slope is made slightly larger, once the wood starts moving inside the drum, it will slide all the way to the exit, making it impossible to peel the wood sufficiently.

This is due to the fact that the hammer rod is used and the hammer rod is only on one side.

Therefore, in this invention, a cylindrical drum is installed with an inclination such that the wood input port is upward and the wood discharge port is downward. A hole is drilled, and a rotary disc blade is arranged so that the blade faces inside the cylindrical drum through the long hole.The cylindrical drum is not rotated, and the wood is danced around by the rotation of the disc blade only, and it touches the skin. This was developed for the purpose of providing a wood peeling device that makes cuts and has a cylindrical drum installed at an angle so that the wood can be smoothly advanced toward the discharge port.

Now, an embodiment of the wood peeling apparatus according to the present invention will be described based on the drawings. Reference numeral 1 indicates a drum formed in a cylindrical shape, and reference numeral 2 indicates a pedestal for installing the drum 1 obliquely.

Reference numeral 3 denotes long holes drilled in the circumferential side of the drum 1. In this embodiment, the holes are bored in a row at a constant interval at the bottom of the drum 1 and on both sides slightly above the bottom. There is.

Reference numeral 4 designates a circular saw-shaped rotary disk blade disposed so that its blade portion faces into the drum 1 from the elongated hole 3, and is disposed around the outer periphery of the drum 1 via a shaft 5 and a bearing 6.

Reference numeral 7 denotes a pulley disposed on the shaft 5 of the rotary disc blade 4, and the connection between this pulley 7 and the disc blade rotation motor 8 is achieved by ①bells} 9, 9'.

In addition, 10 is a wood input port provided above the drum 1,
Reference numeral 11 is a wood discharge port located below the drum 1.

Then, the disk blade 4 is rotated by the motor 8, and the wood W with the skin attached is sequentially fed into the drum 1 from the wood input port 10.
I will put it inside.

Then, the wood W dances wildly within the drum 1 due to the rotation of the disk blade 4, and descends down the slope within the drum 1 toward the wood discharge port 11 while performing a peeling action.

In this way, the wood W is cut in the drum 1 by the disc blade 4, and as it dances around, the wood W rubs against each other, thereby debarking the wood W.

In this case, it is also possible to vary the rotational speed of each shaft 5 or to shift the mounting position of the disc blade 4.

The point is to shorten the time that the wood is in contact with the inner wall so that the wood is always dancing wildly inside the drum 1.

Further, by making the inclination angle of the drum 1 variable, the descending speed of the wood W within the drum 1 can be selected to an arbitrary value.

In this invention, the drum 1 is cylindrical, but the cross section of the drum 1 is not necessarily circular, and may be, for example, quadrangular or hexagonal.

As mentioned above, according to the wood peeling device according to the present invention,
Since there is no need to rotate the drum, the structure is simple, manufacturing is easy, and noise is reduced.

Furthermore, the wood is constantly thrown around inside the drum by multiple rows of rotating circular saw blades, which causes the wood to be stripped of its skin, and since it is not in constant contact with the inner wall of the drum, the wood can move freely inside the drum. .

By installing the drum at an angle with the discharge port facing downward, the wood can be smoothly moved toward the discharge port.

In addition, in the process of movement, the wood is subjected to the debarking effect, so although it has the same performance as a conventional rotating drum-type drum barker equipped with a rotating circular saw blade, a device for rotating the drum is required. Therefore, the structure is simple and the power consumption is low.

[Brief explanation of drawings]

The drawings show an embodiment of the wood peeling device according to the present invention, in which Fig. 1 is a front view, Fig. 2 is a sectional view taken along line A-A in Fig. 1, 1 is a drum, 2 is a pedestal, and 3 is a Long hole, 4 is a rotating disk blade, 5 is a shaft, 6 is a bearing, 7 is a pulley, 8 is a motor,
9 and 9' are ■belts, 10 is a wood input port, 11 is a wood discharge port, and W is wood.

Claims (1)

[Claims] 1. A cylindrical drum is installed at an angle so that the wood input port is upward and the wood discharge port is downward, and long holes are drilled in a fixed row at arbitrary positions on the circumferential side of the cylindrical drum. A wood peeling device characterized in that a rotary disk blade is arranged so that the blade faces the inside of the cylindrical drum from the long hole.