JPH0329123Y2 - - Google Patents

Description

[Detailed description of the invention] [Industrial application field] This invention relates to a debarking device for wood, especially logs, and more specifically, a rotary device having inclined protrusions installed horizontally at the lower openings of a pair of side plates with different slopes. The wood is rotated smoothly by a cylinder and moved to one of the side plates, and is exposed inside the side plate through a plurality of openings formed in the side plate, and the wood is rotated by a plurality of rotating disks having inclined protrusions attached to the outer peripheral surface. This invention relates to a wood peeling device that peels the outer skin of wood while assisting in stirring circulation and conveyance.

[Prior Art] When chip logs are debarked as a preliminary step in producing chips, a debarking machine called a drum barker is generally used.

For example, as shown in Japanese Utility Model Publication No. 34-14341, wood (raw wood) lifted up by the rotation of the can falls onto a notch installed inside the can, and due to the friction between the trees. The skin is peeled off.

[Problem that the invention aims to solve] However, with this one, the lifted logs do not evenly hit the notches attached to the can body, but instead
If the lumber is hit at a certain point (especially at both ends), both ends of the lumber will be damaged and the yield will be poor, and because the head is large, a large amount of broken lumber will occur. Not only is the debarking effect less effective as some logs do not hit the tanotsuchi, but
The dropping of logs inside the can causes loud noises, and the flow of input logs is poor, causing the drum to tilt.However, since a large amount of logs are loaded into the can, the support mechanism is large-scale, making it difficult to move the can. There are problems in that a large amount of power is required to rotate it, and the manufacturing cost is also high.

The purpose of this invention is to provide a wood debarking machine that eliminates the above-mentioned problems, reduces energy loss, has a large debarking effect, improves yield, generates less noise, and improves the flow of input logs. It is something to do.

[Means for Solving the Problems] In order to achieve the above-mentioned object, this invention provides a pair of side plates 2a and 2b with different slopes for storing wood W in the machine frame 1, and each side plate 2
The notches 16, 16 provided at the lower part of the wood a, 2b form an elongated lower opening 8, and a large number of inclined protrusions 6 (hereinafter simply referred to as inclined protrusions 6) inclined in the axial direction of the input wood W are formed on the circumferential surface. A rotating cylinder 5 having an upper part exposed is placed horizontally so as to cover the lower opening 8, and the rotating cylinder 5 is moved from the gentle side plate 2a of the side plates 2a and 2b by the rotating shaft 4. A mechanism for rotating toward the steeply sloped side plate 2b is provided, and the opening 1 of the steeply sloped side plate 2b is provided.
A plurality of rotating disks 12, some of which protrude from the inner surface of the side plate 2b from 5 and rotate in the direction of scooping up the wood W, are horizontally installed along the rotating cylinder 5 via the rotating shaft 11, and A plurality of inclined protrusions 13 (hereinafter simply referred to as inclined protrusions 13) are formed by tilting the wood W in the axial direction on the outer peripheral surface of the disk 12.
The present invention provides a wood peeling device characterized in that it is equipped with a wood peeling device.

[Example] As shown in FIGS. 1 and 2, the wood peeling device of this invention is provided with a pair of side plates 2a and 2b having different slopes for storing wood W in a machine frame 1, and each of these side plates Notches 16 provided at the bottom of 2a and 2b,
A rotary cylinder 5 is formed with an elongated lower opening 8 at 16 and has a large number of inclined protrusions 6 on its circumferential surface, and the bearings 3, 3 and the rotary shaft 4 are arranged so as to cover the lower opening 8 with the upper part exposed. The rotating cylinder 5 is connected to each side plate 2a, 2b by the rotating shaft 4.
From the gentle side plate 2a to the steeply sloped side plate 2
A mechanism is provided to rotate it toward b.

Also, the opening 15 at the bottom of the steeply sloped side plate 2b
A plurality of rotating disks 12, some of which protrude from the inner surface of the side plate 2b and rotate in a direction to raise the wood W, are installed horizontally along the rotating cylinder 5 via bearings 10 and rotating shafts 11. At the same time, an inclined protrusion 13 is attached to the outer peripheral surface of the rotary disk 12 to carry out peeling while scooping up the wood W while transporting it in the length direction.

Furthermore, a hopper 17 is attached below the rotating cylinder 5 to prevent the peeled skin from scattering.
Gears 19 to 22 are attached to one end of gear shift motor 11 and the output shaft of variable speed motor 18, and power transmission chains 23 and 24 are connected between these gears so that both rotating shafts 4 and 11 rotate synchronously. It's getting old.

The wood debarking machine of this invention is constructed as described above, and when debarking wood, the variable speed motor 18 is first turned on and its rotational speed is adjusted depending on the condition of the input wood (wood species, shape, frozen, dry). A certain amount of wood W cut to a fixed length shorter than the length of the rotating cylinder 5 is exposed through the opening 8 between the side plates 2a and 2b under decision control and is thrown onto the rotating cylinder 5.

A certain amount of wood W that has entered between the side plates 2a and 2b rotates and moves as the rotating cylinder 5 and rotating disk 12 synchronously rotate in the direction of the arrow, that is, in the direction of scooping up the wood W. Inclined protrusion 13
It is scooped up and skinned.

That is, the wood W is rotated by a large number of inclined protrusions 6 attached to the rotating cylinder 5, so that the wood W is rotated by the inclined protrusions 1 of the rotating disk 12.
3 and 13, and the material is fed to the right in FIG. 1, that is, in the axial direction of the input wood W.

At this time, the wood W on the rotating cylinder 5 is lifted almost along the cylinder 5 while rotating on its own axis, and the other pieces of wood on that wood are similarly lifted while rotating on their own axis, and the entire large number of pieces of wood are shown by the arrows in Figure 2. The wood W moves toward the rotating disk 12 while rotating on its own axis, and in combination with the slight axial movement of the wood W by the inclined protrusion 6 and the peeling action, the wood W collides with each other to cause frictional peeling.

The wood W that has moved as described above is further peeled by the inclined protrusion 13 of the rotating disk 12 and the inclined protrusion 6 of the rotating cylinder 5, and is gently peeled away from the steeply sloped side plate 2b as shown by the arrow a in FIG. side plate 2a
The wood W, W flows down and circulates, and the above-mentioned circulation movement accompanied by the rotation of the entire wood W, W is performed smoothly.

In addition, at this time, the wood W moving in the axial direction of the rotating cylinder 5 evenly hits the inclined protrusion 13 attached obliquely to the outer peripheral surface of the rotating disk 12 by the rotational force of the inclined protrusion 6 of the rotating cylinder 5, so that the peeling effect is reduced. A large inclined protrusion 13 is attached obliquely to the outer peripheral surface of the rotating disk 12.
The wood W moves smoothly in the axial direction by the inclined protrusion 6 provided on the outer periphery of the cylinder 5. In addition, since the wood flows smoothly with the rotation and circulation of the entire wood, there is no broken wood, so there is less noise and less power is required.

Furthermore, even if the condition of the input wood is different (species, shape, frozen, dry), the rotating disk 12 and Since the rotating cylinder 5 can be optimally set so that the speed of rotation can be changed depending on the condition of the wood to be peeled, the peeling effect is great even on frozen wood.

[Effect of the invention] This invention was constructed as explained above, so
The effects described below are achieved.

The present invention provides a rotary disk 12 that protrudes into the side plate 2b from an opening 15 of the side plate 2b having a steep slope and rotates.
A plurality of inclined protrusions 13 provided on the outer peripheral surface of the wood W are inclined in a direction in which the wood W is fed in the axial direction of the wood W.
This is because the rotating cylinder 5
By providing a large number of inclined protrusions 6 on the circumferential surface of the wood W in a direction in which the wood is fed in the axial direction, peeling can be performed without creating an unreasonable force between each of these inclined protrusions 6, 13 and the wood W. , and the inclined protrusion 1
Due to the rotational force of 3, the wood W rotates on its own axis, is lifted up, and circulates toward the upper part of the side plate 2a, which has a gentle slope.The wood W slowly sinks downward along the side plate 2a, comes into contact with the rotating cylinder 5, and forms an inclined protrusion. 6, the timbers W, W are moved in the direction of the steeply sloped side plate 2b and are also fed in the axial direction, and each timber W, W is again scraped up by the inclined protrusion 13 and fed in the axial direction, rotating gently on its own axis. The material is moved toward the upper part of the side plate 2a, and is debarked while being fed in the axial direction while circulating and rolling down on the gentle side plate 2a, so that it is efficiently removed without causing unnecessary damage to the finished wood. Since the skin can be peeled off and no excessive external force is applied to each inclined protrusion 6, 13,
It has many effects such as prolonging the life without causing the blade chipping phenomenon and minimizing energy loss.

[Brief explanation of the drawing]

The figures all show an embodiment of this invention; FIG. 1 is a plan view of the peeling machine, and FIG. 2 is a cross-sectional view taken along line AA in FIG. 1. 1... Machine frame, 2a... Side plate with gentle slope,
2b... Steep side plate, 3, 10... Bearing, 4,
11... Rotating shaft, 5... Rotating cylinder, 6... Inclined protrusion, 12... Rotating disk, 13... Inclined protrusion, 15
...Opening part, 16...Notch, 17...Hopper,
18...Motor, 19-22...Gear, 23,2
4...Chain, W...Wood.

Claims (1)

[Scope of utility model registration request] A pair of side plates 2a and 2b having different slopes for storing wood W are arranged in the machine frame 1, and an elongated lower opening 8 is formed with notches 16 and 16 provided at the lower part of each of these side plates 2a and 2b. A rotary cylinder 5 having a plurality of inclined protrusions 6 on the circumferential surface that is inclined in the axial direction of the input wood W is horizontally installed so as to cover the lower opening 8 with its upper part exposed, and the rotary cylinder 5 is rotated. A mechanism is provided for rotating from the gentle side plate 2a of the side plates 2a and 2b to the steeply sloped side plate 2b by means of a shaft 4, and from the opening 15 of the steeply sloped side plate 2b to the inner surface of this side plate 2b A plurality of rotating disks 12, some of which protrude and rotate in the direction of scooping up the wood W, are horizontally installed along the rotating cylinder 5 via the rotating shaft 11, and the outer circumferential surface of the rotating disks 12 has the A plurality of inclined protrusions 13 inclined in a direction to transfer the wood W in its length direction.
A wood peeling device characterized by being equipped with.