JPS5914323B2 - Peeling machine - Google Patents

Description

[Detailed Description of the Invention] Conventionally, as a wood peeling machine for chips, a cylindrical body having a number of notched windows in the lower part is installed horizontally, and a beating body that passes through the notched windows is mounted on a rotating shaft. The one that was made was special public service 1972-2852.
This is already known from Publication No. 8.

However, since the above-mentioned debarking machine simply hits the wood from one direction with a hammer that rotates in one direction, the degree of difficulty in debarking the wood is always the same even though it varies markedly depending on the time of felling or tree species. It was decided that the skin would be peeled,
Before the wood moves from the input port to the output port of the drum, if it has been felled in the spring and the bark is likely to peel off and the wood itself has absorbed water and is soft, or if the wood is prone to peeling depending on the tree species, the surrounding area of the wood may be removed. It has the disadvantage of abnormally damaging the surface, and in order to improve this disadvantage, if the rotation speed of the rotating shaft of the beating body is reduced, the transfer of wood within the drum will be poor, resulting in poor peeling and excessive peeling. This type of debarking machine has the drawback that the debarking efficiency of wood that is difficult to debark depending on the type of tree felled in autumn or winter or is difficult to debark is significantly reduced. Since the number of parts is extremely large, work must be stopped for a long time, and replacement work is extremely difficult.

In addition, when a piece of wood gets entangled during the debarking process, resulting in a defective transfer,
If the striking body is rotated only in the same direction, there is a drawback that only a part of the wood is scraped off by the striking body.

The present invention aims to improve the above-mentioned drawbacks, and the present invention is to provide a cylindrical body having a plurality of notched windows in its lower part, which is horizontally installed, and a shaft attached to the lower part of the cylindrical body. In a peeling machine in which a large number of beating bodies that pass through the notched window are rotatably supported, the shaft on which the beating bodies are mounted is configured to be switched between forward rotational drive or reverse rotational drive, and the beating bodies are rotated. It is characterized by having large irregularities formed on one side of its circumferential surface and a gentle surface on the other side.

To explain the embodiment shown in the drawings below, 1 is the machine frame 2.
It is a cylindrical body that is supported above and consists of a cylindrical part and a gutter-like part that is open at the top as shown in FIG. A large number of notched windows 3 . . . , 4 . . . along the direction are bored in parallel and close to each other, and the opening on the starting end side of the cylindrical body is configured as an input port 5 .

Reference numeral 6 denotes a main shaft installed below the cylindrical body 1, on which a number of discs 7 are mounted at predetermined intervals, and these discs 7 are combined in an appropriate number, Those disks 7・
A large number of striking plates 9 rotatably supported on the outer periphery by support shafts 8... are cutout windows bored in the lower part of the cylindrical body as the main shaft 6 rotates. pass through.

Reference numeral 10 denotes a subshaft which is forcibly driven by a suitable transmission device and is supported on the outer side of the lower part of the cylindrical body 1, and a part of the outer circumferential part is inserted through the cutout window 4 in the lower part of the outer side of the cylindrical body. A large number of disks 11 are fixed to form a rotating body that rotates in the direction of raking up logs while facing inside the disk. be.

A pulley 12 is attached to the end of the main shaft 6 and is driven by a motor 17 via intermediate pulleys 13, 14 and belts 15 and 16.

18 is a shutter provided on the discharge side of the cylindrical body 1,
A pinion 21.21, which has a pair of racks 20.20 and is fitted between groove frames 19 and 19 provided on both sides and is attached to a horizontal shaft 21a driven by a motor, meshes with the rack 20.20. Therefore, when you operate the switch on the control panel, the motor rotates in the forward and reverse directions, and shutter 1
8 goes up and down.

If the bark is likely to peel off due to the time of felling the logs or differences in tree species, or if the wood is young and soft, the shutter 18 is lowered to speed up the removal of the wood, thereby preventing damage to the wood and bark. If it is difficult to peel off, use shutter 18.
By increasing the temperature and lengthening the residence time of the log, more complete debarking is achieved.

In this example, the shutter 18 is vertical, but if the shutter 18 is installed obliquely as shown in FIG. 5, the wood can be smoothly discharged.

At this time, the racks 20', 20' provided on the upper surface are engaged with the pinions 21, 21, so that the shutter 18 can be moved up and down.

Further, a roller 18a may be provided on the upper edge of the shutter 18, which is installed upright or obliquely, and is forcibly driven by a motor 18b in the direction of free rotation or discharge of logs.

Reference numeral 22 denotes a rocking body having a large number of irregularities on the inner peripheral edge, and whose upper part is rotatably pivoted to the cylindrical body 1, which is rocked by a crank arm or other reciprocating mechanism, and is struck up by the striking plate 9. This promotes the circulation of the logs and causes the bark to peel off when the logs collide.

Further, as shown in FIG. 6, the striking plate 9 has a substantially oval shape, and one side is provided with many irregularities, and the other side is formed into a smooth curved surface, so that the main shaft 6 can be As shown in Fig. 1, rotating the main shaft clockwise will cause the uneven side to strike the bark, making it possible to easily strip the bark of logs whose bark is difficult to peel off depending on the time of felling or tree species. Since the board 9 strikes the bark with its smooth curved surface, it is possible to prevent damage to the wood when peeling the bark of easily peeled logs or soft logs.

In addition, if the main shaft 6 is rotated in the opposite direction during the peeling process, the beating plate 9 will strike the raw wood from the opposite direction on many uneven surfaces, and large diameter materials or curved materials that are difficult to roll will be struck from the opposite direction. The wood is struck by the beating body 9, and the bark of the entire circumferential surface of the log can be reliably peeled, and the tangles of the log can be loosened and the bark can be efficiently peeled off.

Further, when the main shaft 6 is to be rotated in the forward or reverse direction, it can be easily done by operating a changeover switch on the operation panel, and there is no need to replace the striking plates 9, which is extremely convenient.

In this case, it is preferable to provide a sub-shaft 10 having a large number of disks 11 symmetrically on both sides of the lower part of the cylindrical body 1, and to switch the direction of rotation to a direction that circulates the raw wood at the same time as the main shaft 6 is switched between forward and reverse directions. The sub-shaft 10 on the side into which the striking plates 9 enter is rotated in the direction of feeding the raw wood or stopped.

Next, to explain the effect, logs are not cut (approximately 2
．． 1 m) from the input port 5, but if the logs are difficult to debark, adjust the shutter 18 upward as described above to lengthen the residence time of the logs, and rotate the main shaft 5 clockwise. As it continues to rotate, the striking body 9... strikes the surface of the raw wood with the uneven surface on the right side in Fig. 6,
The bark is forcefully scraped off while rolling the log, making it possible to quickly peel off the bark that is difficult to peel off.

In addition, when debarking a log whose bark is easily peeled off, by adjusting the shutter 18 downward and continuing to rotate the main shaft 5 counterclockwise, the residence time of the log will be shortened.
In addition, since the smooth surfaces of the striking bodies 9 strike the peripheral surface of the raw wood, reliable peeling can be performed while minimizing damage to the woody parts of the wood.

Furthermore, if the logs become tangled while the main shaft 5 is rotated in either direction, if the logs become tangled by continuing to rotate in the opposite direction, the tangles in the logs will be resolved. When it is returned, only a part of the circumferential surface of the wood will not be abnormally scraped off.

At this time, the swing plate 22 may be omitted.

As described above, the present invention has a cylindrical body horizontally provided with a number of notched windows in its lower part, and a shaft attached to the lower part of the cylindrical body. In a peeling machine in which the body is rotatably supported, the shaft on which the beating body is mounted is configured to be switched between forward rotational drive or reverse rotational drive, and the said beating body is formed into a peel and one of its circumferential surfaces is The one has large irregularities and the other has a gentle surface, so when debarking wood whose bark is difficult to peel off, rotate the beating body so that the uneven side of the body goes first. The bark can be strongly peeled off and the bark can be removed with high efficiency.

Further, for wood that is easily peeled, by rotating the beating body so that the gentle peripheral surface side precedes the wood, it is possible to peel the wood without damaging the woody part around the outer periphery of the wood.

Furthermore, when the wood becomes entangled in the cylindrical body, by reversing the rotational direction of the shaft of the beating body, the above-mentioned entanglement is unraveled, and then,
By returning to the initial rotation direction suitable for the wood, normal peeling can be easily performed.

Furthermore, since it is capable of carrying out the three types of peeling treatments mentioned above, there is no need to replace the beating body, and various types of peeling treatments can be handled with extremely high efficiency.

Furthermore, since the striking body is egg-shaped, it can be rotated in either the forward or reverse direction, and when it collides with wood in an upright state due to centrifugal force, it will strike against the recesses of the wood in various postures. It adapts to the shape of the skin, performs an accurate peeling action, and improves peeling performance.

[Brief explanation of the drawing]

Figure 1 is a cross-sectional view of the peeling device, Figure 2 is a partially cutaway side view of the same, Figure 3 is a side view of the shaft with the disc attached, Figure 4
The figure is an end view of the discharge side of the cylindrical body, FIG. 5a is a sectional view of the same as above,
b is a cross-sectional view of another example, and FIG. 6 is a plan view of the striking plate. 1...Cylindrical body, total...Notch window, 6...
... Main shaft, 9... Hitting body, 11...
Disc, 18... Shutter, 22...
Rocking plate.

Claims (1)

[Claims] 1. A cylindrical body having a number of notched windows bored in its lower part is installed horizontally, and a number of striking bodies passing through the notched windows are rotatably supported on a shaft attached to the lower part of the cylindrical body. In the peeling machine,
The shaft on which the striking body is attached is configured to be switched between forward rotational drive or reverse rotational drive, and the striking body is formed into a curved shape with large irregularities formed on one of its circumferential surfaces and a smooth surface on the other side. A peeling machine characterized by the following configurations.