JPS6118967Y2 - - Google Patents

Description

[Detailed Description of the Invention] This invention relates to a fixed drum coverr, and more specifically, to a fixed drum coverr whose can body does not rotate.

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 these drawbacks.The bottom of the fixed can body is lined with a number of holes in the length direction, and a rotary cutter is installed that penetrates into the can body from each hole. a spring on a base plate which is arranged such that the cutters are arranged alternately in a first set of multiple cutters and a second set of multiple cutters, and the first (or second) set of multiple cutters can be swung by a spring; At the same time, the second (or first) set of cutters is installed on the rotation support side of the base plate so that each set of cutters rotates independently, and To provide a fixed drum coverr characterized in that a hammer unit consisting of a rotary hammer that projects into a can body from a hole is provided after a cutter unit consisting of a cutter.

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

Figure 1 is a side view of the fixed drum coverr of this invention. In the figure, 1 is a foundation fixed base plate made of concrete. A barker 4 and a charging section 5 are arranged in series.

The wood removal section 3 and the input section 5 have well-known configurations.

The can body 41 constituting the drum cover 4 is swingably mounted on the support body 2 on the fixed base plate 1 via support members 42b and 2c, as shown in FIG. As will be described later, the bottom of the cutter 41 has a first plurality of cutters 431a, 431b and a second set of cutters 431a, 431b.
A plurality of cutter insertion holes 44 for inserting a plurality of sets of cutters 431a to 431e into the can body, and a plurality of hammer insertion holes 46 for inserting three hammer bodies 451a to 451c into the can body are provided in the can length direction. It is opened regularly.

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.
The first plurality of cutters 431a, 43 formed with
1b and second plurality of cutters 431c to 43
1e fixed on the base plate 433
- 434e with shafts 435a to 435e, gears are attached to each of the shafts 435a to 435e, and the first multi-piece cutter 431
a, 431b are the motors 4 fixed on the base plate 433;
37a and chains 438a, 438b, and the second plurality of cutters 431c to 431e are connected to the base plate 433.
Motor 437b and chain 438c fixed above
~ 438e, each of which is configured to rotate independently in the direction of rotation indicated by an arrow, and this base plate 433 has one end pivotally connected to the support base 21 attached to the support body 2 by the shaft 22, and the other end and the support base plate 433 A spring 23 for imparting elasticity is attached between the body 2 and the body 2. As shown in FIGS. 4 and 5 a to c, the rotary cutter 431 has teeth (notches) 432 with a rectangular cross section and a spirally curved or straight shape on the outer periphery of a disc body at the same pitch or irregularly. The teeth are set in pitch, and the teeth can be selected depending on the hardness of the log.

As shown in FIGS. 6 and 7, the rotary hammer unit 45 consists of three hammer bodies 451a to 451c each having teeth formed on a part of their outer periphery, and two disk bodies 45.
The disk body 452 is rotatably mounted on a shaft 453 at a position where the outer circumference is divided into three equal parts between 2a and 452b.
The shaft 454 to which the shafts a and 452b are attached is supported by bearings 455a and 455b mounted on the supports 24a and 24b mounted on the support body 2, and this shaft 45
Pulley 456 attached to 4 and abutment 24a, 2
4b, and a V-belt 458 is attached between the motor 457 and the motor 457 attached on top of the motor 457.

The fixed drum barker of this invention is constructed as described above, and the operation for peeling the bark of logs will be explained below.

First, the rotary cutter unit 43 and the rotary hammer unit 45 are rotated as shown 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 bark of the log a that has fallen into the can is first scraped off by the rotation of the first plurality of cutters 431a, 431b and the second plurality of cutters 431c to 431e of the rotary cutter unit 43 located directly below the input port. The rotary cutters are stirred while being plucked, and lifted along the can inner wall 411 by the teeth of the rotary cutter to a certain height, and the teeth (notches) 432 of the first and second multi-piece cutters 431a to 431e.
is sent little by little to the other side of the can body 41. During this time, the cutters 431a and 431, which have low elasticity, are installed on the part of the base plate 433 with low elasticity.
The cutters 431c to 431e, which are installed in the portions of the base plate having a large elasticity due to the spring 23, have a weak contact with the original wood, and each set of cutters acts independently.

When the rotary hammer unit 45 is fed to the next position by this feeding operation, the rotary hammer 45
In steps 1a to 451c, the log a is hit, causing numerous scratches on the bark, and is then subjected to the same scraping, stirring, and action as described above in the next rotary cutter unit 43, and is subsequently forced to shed its skin through such actions, and the bark is The logs are completely peeled and the bark is removed from the wood removal section 3. Incidentally, the bark peeled off by the drum cover 4 is discharged from the can body through the holes 44 and 46. Furthermore, since this drum barker 4 can swing around the supporting legs 6, the discharge side can be lowered as necessary to make the raw wood feed smoothly.

As described above, this invention has a large number of holes 44 lined up in the length direction at the bottom of the fixed can body 41, and a rotary cutter 431 that protrudes into the can body from each hole.
These cutters are connected to the first plurality of cutters 431.
a, 431b and the second set of multiple cutters 431c~
431e, and the first (or second) multi-piece cutters are installed on the spring support side of the base plate 433 that can be swung by the spring 23, and the second (or first) A plurality of sets of cutters are arranged on the rotation support side of the base plate so that each set of cutters rotates independently, and furthermore, after the cutter unit 43 consisting of the two sets of cutters, a cutter is inserted into the can body from the hole 46. Since a hammer unit 45 consisting of a rotary hammer 451 is provided, the logs are subjected to the complex peeling action as described above, and even the bark of small-diameter trees, frozen trees, and hard-to-remove trees such as walnuts and oaks can be removed. It has effects such as being able to efficiently exfoliate skin.

[Brief explanation of the drawing]

The figures all show one embodiment of this invention, in which Figure 1 is a sectional view of the entire fixed drum coverr, Figure 2 is a longitudinal sectional view, and Figure 3 is a cross sectional view at line AA in Figure 2. Fig. 4 is a perspective view of the rotary cutter, Fig. 5 a to c are side views showing modified examples of the teeth of the rotary cutter, Fig. 6 is a side view of the rotary hammer unit, and Fig. 7 is a front view. be. DESCRIPTION OF SYMBOLS 1... Fixed base plate, 2... Support body, 3... Wood removal part, 4... Drum coverer, 5... Input part, 41...
...Can body, 42b, 42c... Support member, 431a
~431b...First multi-piece cutter, 431c
~431e...Second multi-piece cutlet, 44...
Cutter insertion hole, 451a-451c... Hammer body, 46... Hammer insertion hole, 43... Cutter unit, 432... Notch, 433... Base plate, 43
7a...Motor, 438a, 438b...Chain, 21...Support stand, 23...Spring, 45
...Hammer unit, 456...Pulley, a...
Log.

Claims (1)

[Scope of utility model registration request] A large number of holes 44 are provided in the length direction at the bottom of the fixed can body 41.
are arranged in a row, and rotary cutters 431 that protrude into the can body from each hole are provided, and these cutters are arranged alternately as a first plurality of cutters 431a, 431b and a second plurality of cutters 431c to 431e. Then, the first (or second) multi-piece cutter is installed on the spring support side of the plywood 433 that can be swung by the spring 23, and the second (or first) multi-piece cutter is placed on the stand. A hammer consisting of a rotary hammer 451 is installed on the rotation support side of the plate so that each set of cutters can rotate independently, and furthermore, after the cutter unit 43 consisting of the two sets of cutters, a rotary hammer 451 is inserted into the can body through the hole 46. A fixed drum coverr characterized in that a unit 45 is provided.