JPS6118966Y2 - - 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; The cutters are arranged on the support side, and 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. The present invention provides a fixed drum cover.

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.

As shown in FIG. 1, the can body constituting the drum cover 4 is mounted so as to be movable on the support body 2 on the fixed base plate 1 via the support members 3 and 42c, and as shown in FIG. As shown in FIG. 3, the bottom of the can body 41 has a plurality of cutter insertion holes 44 for inserting, for example, three-piece and two-piece rotary cutters 431a to 431e into the can body, as described later. Each can is opened regularly in the lengthwise direction of the can.

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, gears are attached to each of the shafts 435a to 435e, and the rotary cutters 431a and 431b are
is a motor 437a and chains 438a, 438b fixed on a base plate 433, and a rotary cutter 43
1a to 431e are configured to rotate independently in the rotational direction shown by the arrow by a motor 437b and chains 438c to 438e fixed on a base plate 433, and this base plate 433 is attached at one end to the support body 2. It is pivotally connected to a support base 21 by a shaft 22, and a spring 23 for imparting elasticity is attached between the other end of the base plate and the support 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.

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 is rotated as shown by the arrow in FIG. 2 using an operation panel (not shown). Next, when the log a is loaded into the input section 5 using a transport means such as a hawk lift, the log a
falls into the fixed can body from one end of the fixed can body 41. The log a that has fallen into the can body is first transferred to the rotary cutter unit 43 located directly below the input port.
Set of rotary cutters 431a, 431b and 431
The bark is scraped and agitated by the rotation of the rotary cutters 431a to 431e, and the bark is agitated along the can inner wall 411 and lifted by the teeth of the rotary cutter to a certain height. The two cutters 431a, 4 installed on the spring support side of the base plate 433 are fed little by little to the other side of the can body 41.
Since the elasticity of the cutter 31b is small, the contact of the cutter against the raw wood is strong, but since the elasticity of the set of three cutters 431c to 431e installed on the rotation support side of the base plate is large, the contact of the cutter against the raw wood is weak, and these Actions are applied independently to each tree, and in the next rotary cutter unit 43, the bark is subjected to the same scraping, stirring, and feeding actions as described above, and the bark is forced to be shed by these actions in sequence, and the bark is completely peeled off.
Logs from which the bark has been peeled are discharged from the wood removal section 3. The bark peeled off by the drum cover 4 is inserted into the hole 44.
It is discharged outside the can body. 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 were arranged on the rotary support side of the base plate, and each set of cutters rotated independently.As mentioned above, the raw wood is subjected to a complicated peeling action, and the small diameter wood,
It has the effect of being able to efficiently peel off the bark of trees that are difficult to remove, such as frozen trees, walnuts, and oaks.

[Brief explanation of the drawing]

The figures all show one embodiment of this invention; Fig. 1 is a side view of the entire fixed drum cover, Fig. 2 is a vertical cross-sectional view, Fig. 3 is a cross-sectional view at line AA in Fig. 2, FIG. 4 is a perspective view of the rotary ivy, and FIGS. 5 a to 5 c are side views showing modified examples of the teeth of the rotary ivy. DESCRIPTION OF SYMBOLS 1... Fixed base plate, 2... Support body, 3... Wood removal part, 4... Drum coverer, 5... Input part, 41...
...Can body, 42c...Support member, 431a to 431
e...Rotary cutter, 44...Cut insertion hole,
43...Katsuta unit, 432...Nottsuchi, 4
33... Base plate, 437a... Motor, 438a,
438b...Chain, 21...Support stand, 23...
...Spring, 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 supporting 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 fixed drum cover that is installed on the rotation support side of a plate so that each set of cutters rotates independently.