JPH02179703A - Lumber barking machine - Google Patents

Abstract

PURPOSE:To enable barking to be performed highly-efficiently, and improve finishing of the barked surface thereof by providing a small number of high barking parts and a large number of low barking parts continuously on the location corresponding to the slits of the outer peripheral surface of a rotating body, and providing a plurality of projections on the slanted surface of the high barking parts. CONSTITUTION:When lumbers are supplied to a supply part by a supplying conveyor or the like, barking blades 6 act to push up and transfer the lumbers while rotating them, and the lumbers are barked by being circulated, and since a rotating body 5 is slanted, the lumbers are moved one by one to the side of an exclusion part 1c. The barking blades 6 rotating by passing through respective slits 12 strongly scratch off the bark of the lumbers being moved to the exclusion part by a plurality of projections on the slanted surface while pushing up the lumbers highly by the high barking parts 6a, and make them being transferred to other side wall parts. Drawing back to the outside, they are circulated transversely within a lumber treating vessel 1 by pushing them up along the side wall part 1b, thus, the small projections 6b of low barking parts 6b following high barking parts 6a bark them intermittently. Such barking may be carried out at the location corresponding to respective slits, and the barking completion lumbers are extruded from the extrusion part to outside of the vessel.

Description

[Detailed description of the invention] (b) Industrial application fields The present invention relates to a wood debarking machine for valves.

(B) Prior Art Conventionally, a wood processing container with a wood supply section at the upper end of one end and a discharge section at the other end is provided with the discharge section side lower than the supply section side, and a part of the outer peripheral surface of the cylindrical rotating body is provided. is supported and inserted into the lower opening of the wood processing container l with the discharge part side facing downward, and a number of comb-shaped slits are provided on the side edges of the lower opening of the wood processing container l, A peeling machine is already known in which peeling blades are provided on the outer peripheral surface of the rotating body at intervals in the circumferential direction and the axial direction so as to pass through the slits.

(c) Problems to be Solved by the Invention The above-mentioned known peeling machine does not have a single peeling blade at a portion corresponding to one snot on the outer periphery of the rotating body, and even if there are two peeling blades, the rotating body will not work properly. Since the bark is only stripped once or twice during one rotation, the stripping performance is extremely low, and since the stripping blade rapidly pushes up the wood to strip it, problems such as the surface of the stripped wood become rough. There was a point.

(d) Means for solving the problem The present invention provides a wood processing container with a wood supply section at the upper end of one end and a discharge section at the other end, with the discharge section being lower than the supply section. A part of the outer peripheral surface of the body is supported and inserted into the lower opening of the wood processing container l so that the discharge part side is lower, and on the side edge of the lower opening of the wood processing container l,
A large number of comb-like slits are provided, and at least one or a small number of high peeled portions and a large number of low peeled portions are continuously provided at a portion of the outer circumferential surface of the rotating body corresponding to the slits, and the high peeled portions are By providing multiple protrusions on the slope, strong peeling is performed at the part corresponding to the high slit of the rotating body, and from there to the next high peeling part, a large number of low peeling parts are used to perform final peeling. The above-mentioned problems were solved.

(E) When the wood is put into the supply section of the wood processing container while rotating the rotating body, the peeling blade continuously enters the wood processing container through the slit in one side wall while rotating with the rotating body, The high peeling area pushes the wood up and peels the wood with multiple protrusions on the slope. When this high peeling area passes, many low peeling areas follow the high peeling area, and the bark caused by the high peeling area and new bark are removed. The bark is peeled off intermittently and exits through the slit in the other side wall.

Such peeling is performed at a portion corresponding to each slit, and the wood that has been completely peeled is discharged from the discharge section to the outside of the container.

(F) Example Below, to explain the example shown in the drawings, l is a wood processing container horizontally mounted on the machine base 2 so that the delivery side is lower, and the starting end side of the wood processing container l is on the upper side. The upper part is opened to serve as a supply part, and the flow plate 4 that protrudes laterally is attached to the side part of the supply part, and the wood processing container 1 has left and right side walls with the lower part sloped or curved inward. It is composed of a, lb and front and rear end plates, and has an opening 3 at the bottom.
In this embodiment, the delivery side is cylindrical, but the upper part may be open.

In addition, one or more drum-shaped rotating bodies 5 are arranged in series at the bottom of the opening 3 of the wood processing container 1, and are arranged at an angle so that the delivery side is lower than the supply side. A part of the outer circumferential surface of these rotating bodies 5... is inserted into the opening 3, and the outer circumferential surface has a height (
At the same time, a large number of peeling blades 6 having a plurality of irregularities are spirally arranged on this inclined surface and welded.

Further, a discharge part 1c is provided at the transfer end of the wood processing container l, and a chino 1 is connected to the discharge part 1c by a motor 8.
A shutter 11 is provided which is driven up and down through the shutter.

Furthermore, a number of comb-like slits 12 are carved in the lower edges of the side walls 1a and 1b of the wood processing container 1, and each of the skin stripping blades 6 is connected to the wood processing container 1. When going in and out of L, it passes through the slits 12.

Incidentally, a shaft 15 is fixed to the inner circumferential surface of the end of the rotating body 5° 5, which is continuous in the front and back, through a plurality of rectangular plates 13 arranged radially when viewed from the axial direction. The shafts 15 are supported on the machine base 2 via bearings 16, and the upper part of these bearings 16 is covered by an arc-shaped cover 17 that coincides with the outer peripheral surface of the rotating body 5. A plurality of transfer plates 1 passing through one slit 12 (on the same circumference) are provided on the outer peripheral surface of the rotating body 5 near the cover 17.
8... are welded in rows spaced apart in the circumferential direction, and the rows of these transfer plates 18... may be provided corresponding to each adjacent slit 12, but as shown in the figure. It may be provided every other piece, and the range is 1/4 to 1/4 of the length of the wood to be stripped from the end of the rotating body 5! /2.

As shown in FIGS. 1 and 2, the peeling blade 6 is continuously welded all around the circumference of the rotating body 5 at a portion corresponding to each slit 12 on the outer circumferential surface of the rotating body 5. , these peeling blades have a high peeling blade i6a in one place or a small number of places, for example, four places (in this example, two places), and a low peeling blade having a large number of small protrusions 6b' provided on the same circumference except for the high peeling blades i6a. A plurality of protrusions are provided on the slope where the rear portion of the high peeling portion 6a in the rotational direction becomes higher in sequence. Further, the small protrusions 6b' may be provided on the outer circumferential surface of the band-shaped body at narrow intervals, or may be formed in a sawtooth shape with continuous peaks and valleys.

FIGS. 3 and 4 show another embodiment in which the rear side of the high peeled portion 6a in the rotation direction is made into a gently sloped surface, and a large number of small protrusions 6b' are formed on this slope. Either the sloped surface is made part way and the part from this part to the next highest peeled part 6a is a band-shaped body, and the small protrusion 6b' is provided on its outer periphery, or the gently sloped surface is extended to the next highest peeled part. Continuing to the back surface of the peeled portion 6a, a large number of protrusions are provided on this gently sloped surface, or the back portion of the high peeled portion is formed into a gently sloped surface whose rear portion in the direction of rotation is gradually lowered.

A large number of protrusions may also be provided on this gently inclined surface.

In the above-mentioned peeling machine, the rotating body 5...

When the wood processing container 1 is rotatably driven via a speed reducer by a motor provided on the supply side and the discharge side, and wood is fed to the feeding section by a feeding conveyor or the like, the peeling blades 6 push up the wood and transfer it. If the peeling process continues, the wood will be sequentially moved toward the discharge section lc since the rotating body 5 is inclined.

The peeling blade 6, which rotates without passing through each slit 12, pushes up the wood greatly with its high peeling part 6a, and uses the plurality of protrusions on its sloped surface to move the bark of the wood toward the discharge part. is strongly scraped and moved toward the other side wall, and when exiting to the outside, is pushed up along the side wall 1b to circulate laterally within the wood processing container 1, removing the high peeling portion 6a. Continuing (low peeling part 6b
The small protrusions 6b'... are peeled off intermittently.

In the conventional type, during this period, the wood merely slid into contact with the circumferential surface of the rotating body 5 and no peeling action was performed, resulting in poor peeling performance.

Wood that has been peeled in this way is discharged from the end of the machine in a peeling machine that does not have multiple rotating bodies arranged in series in the axial direction, but instead has one or more rotary bodies supported in parallel. In the peeling machines arranged in series, the transfer plate 18 at the end of the rotary body pushes up the wood and moves it over the cover 17 to transfer it to the next rotary body 5, and the next rotary body 5 is transferred to the next rotary body 5. The transfer plate 18 smoothly transfers the receiver, and the peeling blade 6 further performs the same peeling as described above, and is taken out from the discharge part at the end of the wood processing container l.

(g) Effects of the invention As described above, the present invention has the upper part of one end as a wood supply section,
A wood processing container l having a discharge section at the other end is provided with the discharge section side being lower than the supply section side. A number of comb-shaped slits 12 are provided on the side edge of the lower opening 3 of the wood processing container 1, and the slits 12 correspond to the slits on the outer peripheral surface of the rotating body 5. A small number or a small number of high peeled portions 6a and a large number of low peeled portions 12b are continuously provided in the area where the skin is removed, and a plurality of protrusions are provided on the slopes of the high peeled portions 12a. 12, each series of peeling blades 6... strongly peels the wood while pushing it up greatly with its high peeling part 6a, and subsequently (low peeling part 6b removes the bark scraped up by the high peeling part 6a) The remaining bark is scraped off, allowing highly efficient peeling and a clean finish on the peeled surface.

[Brief explanation of the drawing]

The drawings show one embodiment of the present invention, and FIG. 1 is a cross-sectional view of a rotating body, FIG. 2 is a side view of a part of the same, and FIG. 3 is a cross-sectional view of another embodiment. Figure 4 is a side view of a part of the same as above, and Figure 5 is a plan view of the peeling machine. FIG. 6 is a side view of the same as above, FIG. 7 is a side view showing a partial cross section near the connecting portion when three or more rotating bodies are connected in series, and FIG. 8 is a cross-sectional view. ■...Wood processing container, 5...Rotating body, 6...Debarking blade, 6
a...High peeling part, 6b...Low peeling part, 6b'・
・Small protrusion, 12..Slit, 17..Cover, 18.
・Transfer plate

Claims (1)

[Claims] (1) The wood processing container 1 has a wood supply section at one end and a discharge section at the other end, and the discharge section is lower than the supply section. It is supported and inserted into the lower opening of the wood processing container 1 so that the discharge part side is lower, and a large number of comb-shaped slits 12 are provided on the side edges of the lower opening 3 of the wood processing container 1, At least one or a few high peeled parts 6a and a low peeled part 6b having a large number of protrusions are continuously provided on the outer peripheral surface of the rotating body 5 at a portion corresponding to the slit 12, and the high peeled parts 6 are continuously provided.
A wood peeling machine characterized in that a plurality of protrusions are provided on the slope of a.