JPS6118969Y2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION This invention relates to a pre-treatment device for a rotary drum coverr, and more specifically, to an improvement of a rotary drum coverr equipped with a treatment device.

In conventional general drum barkers, a large number of protruding blades are attached to the inner surface of the can body, and when the log placed in the can body changes its position as the can body rotates, it touches the protruding blades and breaks the bark. It is configured to be peeled off. Therefore, structurally, the bark is peeled off only by the frictional effect caused by the contact between the raw wood put into the can and the protruding blades, and it can be used to peel off the bark from small diameter trees, frozen trees, etc.
When peeling hard trees such as walnuts and oaks, the protruding blades frequently break and the peeling efficiency is poor.

In order to eliminate these drawbacks, a system has been put into practical use in which a gap is formed between two rotating can bodies, and a rotary ivy is inserted between the two to forcibly peel off the bark. Although a considerable effect can be expected in this case, the debarking efficiency is still low in the case of hard trees such as frozen trees, walnuts and oaks as described above.

The purpose of this invention is to eliminate such drawbacks, by providing a fixed can between the raw wood input section and the rotating can, which communicates with these, and at the bottom of the fixed can in the longitudinal direction. A large number of holes are arranged in a row, rotary cutters are provided that protrude into the can body from each hole, and these cutters are arranged alternately as a first plurality of cutters and a second plurality of cutters, and A set of individual cutters is installed on the spring support side of a base plate that swings by a spring, and a second set of multiple cutters is installed on the rotation support side of the base plate, so that both sets of cutters are rotated independently. To provide a pre-processing device for a rotary drum barker, further comprising a hammer unit consisting of a rotary hammer that projects into the can body from another hole after the cutter unit consisting of the two sets of cutters.

An embodiment of this invention shown in the drawings will be described in detail below.

Figure 1 is a side view of the drum coverr with a pre-treatment device of this invention. In the figure, 1 is a fixed foundation plate made of concrete, and on this fixed platen 1 are a wood removal section 2, a drum coverr 3, A pretreatment device 4 and a charging section 5 are arranged in series.

The wood removal section 2 and the drum cover 3 have a well-known structure, and in the figure, 31 is a rotating can body, 32a and 32b are rails attached to the outer periphery of the can body, and 33 is a rotating force (not shown) of this can body. The pulleys 34a and 34b connected to each other by a belt are each a pair of can support roller sets.

A can body 41 having a diameter slightly smaller than the diameter of the rotary can body 31 constituting the pretreatment device 4 is fixed on a fixed base plate 1 with support members 42a to 42c, as shown in FIG. At the bottom of 41, there are three sets of rotary cutters and two sets of rotary cutters 431a~ as described later.
A plurality of cutter insertion holes 44 through which the hammer body 431e penetrates into the can body and a plurality of hammer insertion holes 46 through which the three hammer bodies 451a to 451c penetrate into the can body are regularly opened in the can length direction.

The rotary cutter unit 43 is shown in FIGS.
There are teeth (notches) 432 on the outer periphery as shown in Figures a to c.
Bearing members 434a to 43 in which rotary cutters 431a to 431e formed with
4e with shafts 435a to 435e, and gears 436 are respectively mounted on the shafts 435a to 435e.
a to 436e are attached, and the two rotary cutters 431a, 431b are connected to a motor 437a fixed on the base plate 433 and chains 438a, 438.
b, set of 3 rotary cutters 431c to 431e
The base plate 433 is configured to rotate independently in the direction of rotation indicated by the arrow by a motor 437b and chains 438a to 438e fixed on the base plate 433, and one end of the base plate 433 is connected to a support attached to the fixed base plate 1. It is pivotally connected to the base 11 by a shaft 12, and a spring 1 for providing elasticity is provided between the other end of the base plate and the fixed base plate 1.
3 is installed. That is, the first set of multiple cutters 431a and 431b are installed on the spring support side of the base plate 433, and the second set of multiple cutters 431c to 431e are installed on the rotationally supported side of the base plate. The rotary cutter 431 is shown in Figs. 4 and 5.
As shown in Figures a to c, there are teeth (notches) 4 on the outer periphery of the disc body, each having a rectangular spirally curved or straight cross section.
32 are provided at the same pitch or at irregular pitches, and the teeth can be selected depending on the hardness and condition of the log.

The rotary hammer unit 45 is shown in Figs. 3 and 6.
As shown in FIGS. 7 and 7, three hammer bodies 541a to 541c each having teeth formed on a part of their outer periphery are placed between two disk bodies 452a and 452b at a position where the outer periphery is divided into three by a shaft 543. The shaft 454 with the disk bodies 452a and 452b mounted thereon is supported by bearings 455a and 455b mounted on the supports 14a and 14b mounted on the fixed base plate 1. Attached pulley 456 and abutment 1
It has a configuration in which a V-belt 458 is attached between a motor 457 attached on 4a and 14b.

The rotary drum barker pretreatment device of this invention is constructed as described above, and the operation for peeling the bedboard bark will be described below.

First, the rotary drum coverr, rotary cutter unit 43, and rotary hammer unit 45 are rotated as indicated by arrows in FIGS. 2 and 6 using an operation panel (not shown).

Next, when the log a is thrown into the input section 5 using a transport means such as a hawk lift, the log a falls from one end of the fixed can 41 into the fixed can. The log a that has fallen into the can is first cut into two sets of rotary cutters 431a, 431b and 431c to 431 of the rotary cutter unit 43 located directly below the input port.
The bark is scraped and stirred by the rotation of e, and it is lifted up along the can wall with the teeth of the rotary cutter.
It is lifted up to a certain height and sent little by little to the other side of the can body 41 by the feed of the teeth (notches) 432 of the rotary cutters 431a to 431e.
During this time, the first multi-piece cutter 431 with low elasticity installed on the spring support side of the base plate 433
a, 431b have a strong contact with the raw wood, but the second set of multiple cutters 43ac to 431e, which have large elasticity and are installed on the rotation support side of the base plate, have a weak contact with the raw wood, but each set of cutters has a unique effect. act. When the rotary hammer unit 45 is fed to the next position by this feeding operation, the rotary hammer 4
At steps 51a to 451c, the log a is struck, causing numerous bruises on the bark, and is further subjected to the same scratching, stirring and feeding actions as described above in the next rotary cutter unit 43, and is subsequently forced to shed its skin through such actions. After that, the log enters the rotary drum barker 3, and as is well known, the remaining bark is completely peeled off by the peeling action at the countless notches in the rotary can body 31, and the bark is peeled from the wood removal section 2. is discharged. The bark peeled off by the pretreatment device 4 is discharged from the can through the holes 44 and 46.

As mentioned above, this invention has a fixed can body 4 which is connected between the raw wood input section 5 and the rotating can body 31.
1, a large number of holes 44 are arranged in a row in the length direction at the bottom of the fixed can body, and rotary cutters 431 are provided that protrude into the can body from each hole.
a base plate which is arranged alternately between the plurality of cutters 431a, 431b and the second plurality of cutters 431c to 431e, and which swings the first (or second) plurality of cutters by a spring 13; 433
is installed on the spring support side of the spring, and the second
(or the first set of cutters) is installed on the rotary support side of the base plate so that both sets of cutters can rotate independently, and furthermore, a cutter unit 43 consisting of the two sets of cutters is installed through the hole 46. Since the hammer unit 45 consisting of a rotary hammer 451 that penetrates into the can body is provided, the raw wood is subjected to the complicated peeling action as described above, and it is possible to remove the hard bark of trees such as small diameter trees, frozen trees, walnuts and oaks. It has effects such as being able to efficiently peel off tree bark.

[Brief explanation of the drawing]

The figures all show one embodiment of this invention. Figure 1 is a side view of the entire device in communication with the rotary drum coverr, Figure 2 is a longitudinal sectional view, and Figure 3 is A of Figure 2. 4 is a perspective view of the rotary cutter, FIGS. 5 a to 5 are side views showing modified examples of the teeth of the rotary cutter, and FIG. 6 is a side view of the rotary hammer unit. FIG. 7 is also a front view. DESCRIPTION OF SYMBOLS 1... Fixed base plate, 2... Wood removal section, 3... Drum coverer, 4... Pretreatment device, 5... Input section, 31
...Rotating can body, 33...Pulley, 41...Can body,
431a-431e...Rotary cutter, 44...
... cutter insertion hole, 451a-451c ... hammer body, 46 ... hammer insertion hole, 43 ... cutter unit, 432 ... notch, 433 ... base plate, 43
4a-434e...Bearing member, 435a-435
e...Axle, 436a-436e...Gear, 437
a...Motor, 452a, 452b...Disc body,
453...axis, a...log.

Claims (1)

[Scope of utility model registration request] A fixed can body 41 is provided between the raw wood input section 5 and the rotary can body 31 and communicates therewith, and a large number of holes 44 are arranged in a row in the length direction at the bottom of the fixed can body. Protruding rotary cutters 431 are provided, and these cutters are connected to a first plurality of cutters 431a,
431b and second plural-piece cutters 431c to 43
1e and a base plate 433 that swings the first plurality of cutters by a spring 13.
is installed on the spring support side of the spring, and the second
(or the first set of cutters) is installed on the rotary support side of the base plate so that both sets of cutters can rotate independently, and furthermore, a cutter unit 43 consisting of the two sets of cutters is installed through the hole 46. A pretreatment device for a rotary drum barker, characterized in that it is provided with a hammer unit 45 consisting of a rotary hammer 451 that protrudes into the can body.