JPS6116602B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION Conventionally, a peeling device is already known that peels a log by moving a peeling rotating body having a large number of peeling blades in pressure contact with the circumferential surface of a log and moving the log relatively in the longitudinal direction and the circumferential direction. ing.

However, when the peeling device peels the bark of cedar or cypress trees, which have long fibers and are strong, the peeled bark wraps around the peeling rotor, making it impossible to peel the bark. It had to be removed, which reduced work efficiency and was extremely dangerous.

The present invention improves the above-mentioned drawbacks, and provides a wood peeling device that reliably bites into and cuts the bark wrapped around a log or a peeling rotor, and that the cut bark easily separates and does not become an obstacle to peeling. A peeling rotary body having a number of peeling blades protruding at intervals in the circumferential direction is pressed against the outer circumference of the log, and the peeling rotor body The peeling device is characterized in that a plurality of skin cutting pieces are protruded from the side surface of the peeling rotary body at a distance larger than the pitch of the peeling blade. be.

To explain the embodiment shown in the drawings below, 1 is a ring that is guided by a gate-shaped machine frame 1a, moves up and down together with a holding frame 1b, and rotates around a log inserted into a center hole, and has a peeling rotor at its tip. A plurality of swinging arms 4 with the body 2 pivotally supported by a support shaft 5 are attached radially, and each peeling rotary body 2 is forcibly driven.

Further, in front and behind the ring 1, there is provided a transfer device consisting of a chain conveyor 6 and rollers 7 that move up and down in opposite directions, similar to the conventional device.

As shown in FIGS. 3 and 4, the peeling rotary body 2 is constructed by protruding from the outer periphery of a rotary body 2a a large number of peeling blades 2b consisting of protrusions at regular intervals in the circumferential direction. The lead angle of the skinning blade 2b is appropriately selected between 0 and 45 degrees, and in this embodiment, it is 45 degrees.

Further, on the feed side side surface of the peeling rotary body 2, a plurality of arcuate protrusions 9 having a length approximately twice as long as the pitch of the peeling blade 2b are integrally provided with a concave portion 9a in between. , the skin cutting piece 8 shown in FIG.
a...., a bolt is inserted into the hole 8a, and is fixed by screwing and tightening into the screw hole 2c of the peeling rotary body 2. Therefore, the skin cutting piece 8...
The mounting interval of ... is sufficiently larger than the pitch of the peeling blade 2b.

Locking pieces 8b, 8 are provided on both ends of the skin cutting piece 8.
b is provided protrudingly, and the outer end of the skin cutting piece 8 is a third
As shown in the figure, it is slightly lower than the skinning blade 2b when viewed from the front.
In a side view, as shown in FIG. 4, it protrudes from the protrusion 9 toward the material feeding side, and the connected bark is cut by the corner of this protrusion.

Further, on the outer circumferential side of the delivery side of the peeling rotary body 2, the outer circumferential surface is smaller than the peeling blade 2b by, for example, 2 to 10 mm.
A donut-shaped disk 10 with a height of mm (2 to 3 mm in the illustrated example) is fixed with screws.

In the above-mentioned apparatus, the log is fed into the center hole of the ring 1 by the transfer device, and the swinging arm 4 is swung by the air cylinder to move the log to the peeling rotary body 2.
When the log is pressed against the outer peripheral surface of the log, the log is transported at a constant speed, and the peeling rotary body 2 rotates on its own axis and revolves around the log together with the ring 1 to peel the log.

At that time, since the fibers of the bark of cedar and cypress are strong, the peeled bark tries to wrap around the log and the peeling rotor 2, but this bark is stuck to the peeling blade 2b...
It easily and deeply penetrates between the front and rear bark cutting pieces 8, which are set at a distance larger than the pitch of..., and the bark cutting piece 8 reliably engages and cuts the cut bark into short pieces. is quickly discharged from the wide gap between the adjacent skin incision pieces 8, 8 without causing any clogging.

During this bark cutting, the bark cutting piece 8 fits into the recess 9a and is supported by the end of the protruding line 9, or the locking pieces 8b engage with the protruding line 9, resulting in a large cutting resistance. Holds firmly even under load and cuts bark reliably.

In addition, when the cut part (corner) of the skin cutting piece 8 is worn out, by rotating the skin cutting piece 8 180 degrees and attaching it, the unused other end can be used, and a new skin cutting piece can be used. It is also easy to replace it with 8.

Next, another embodiment of the present invention will be described with reference to FIG. 6. Reference numeral 20 is a pair of front and rear wood grips, which penetrate into the end of the log and rotate, and the peeling rotary body 2 is the same as the above-mentioned embodiment. They are identical and are pivotally supported at the lower ends of a pair of left and right swinging arms suspended from the gate frame, and are forcibly driven to rotate by an appropriate transmission mechanism and are in pressure contact with the circumferential surface of the log. The log is held by a wood gripper 20 and moved in its length direction while being rotated, or the log is rotated at a fixed position and a gate frame is run in the length direction of the log to debark the log.

In this embodiment as well, the bark cutting piece 8 cuts the wrapped bark into short pieces.

As described above, the present invention presses a peeling rotor having a large number of peeling blades projecting at intervals in the circumferential direction onto the outer periphery of a log, and applies the peeling rotor in the lengthwise direction and circumferential direction of the log. In a peeling device that peels the skin while moving relative to each other, a plurality of skin cutting pieces are protruded from the side surface of the peeling rotary body at a distance larger than the pitch of the peeling blade, so that the bark of cedar or cypress is removed from its fibers. It is extremely strong and wraps around logs and peeling rotors, but it can be cut short with the skin cutting piece, eliminating the need for dangerous and time-consuming skin removal work, making it highly efficient and extremely easy. The bark can be peeled off, and the cut bark is short and can be easily processed afterwards.

Moreover, the bark that has been peeled off by the peeling blade of the peeling rotor and is connected to the unpeeled part,
The bark is inserted between the bark cutting pieces provided at intervals larger than the pitch of the bark peeling blade, and the bark cutting pieces reliably engage the bark to accurately cut the bark.

Furthermore, even though the debarking rotor continuously performs debarking, the cut bark escapes very easily and quickly from the wide gap between the debarking pieces, and does not become an obstacle to debarking. .

[Brief explanation of the drawing]

The drawings show one embodiment of the present invention, and FIG. 1 is a front view of the skinning section of the ring barker, FIG. 2 is a side view of the transfer device, FIG. 3 is a front view of the skinning rotary body, and FIG. FIG. 5 is a front view of the skin cutting piece, and FIG. 6 is a side view of another embodiment. DESCRIPTION OF SYMBOLS 1... Ring, 2... Skin peeling rotating body, 2b... Skin peeling blade, 8... Skin cutting piece, 9a... Notch part.

Claims (1)

[Claims] 1. A peeling rotating body having a number of peeling blades protruding at intervals in the circumferential direction is pressed against the outer periphery of the log, and the peeling rotating body is peeled while relatively moving in the lengthwise direction and the circumferential direction of the log. A wood peeling device characterized in that a plurality of skin cutting pieces are provided on a side surface of the peeling rotary body at a distance larger than the pitch of the peeling blade.