JPS6052305A - Centerless cutter for log - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention is an apparatus for cutting and covering particles used in particle boards from small diameter wood such as thinned wood or veneer lace core, and which is capable of cutting and covering particles that are relatively long and medium in the fiber direction from small diameter wood. Roughly 1 (ζ
The present invention provides a device that can efficiently cut fine chips with high efficiency and good yield.

This invention will be explained by way of embodiments shown in the drawings.
The rotation 41 includes one to several (three in the embodiment) rotary cutters 3.3a, 31) and one or more (two in the embodiment) rotary drive wheels 4, 4a in 1III+2. ll
It is attached to the paternal side in the axial direction of 'll+2 to support the log A at its outer periphery and is formed so as to be able to cut in the tangential direction. Each rotary cutter 3, 3a,
3b is a type in which one or more blades 6 such as spiral blades or straight blades are formed in each of the blade barrels 5.5a and 5b fixed to the shaft 2, and each rotary drive wheel 4 .4
7a and 7.a rotatably attached to the shaft 2.
The outer peripheral surface of each rotating ring 8, 8a is equipped with a protrusion-like object or a serrated object, etc., which has a large coefficient of friction with the outer periphery of the log Δ. Attach a parting shrine 9 to ensure reliable rotation of logs.

The cutter drive mechanism 10 includes a motor, etc., and rotates each rotary cutter 3.3a, 3b via the shaft 2, and has a drive wheel drive 1j! t 4Ft 11 is a rotary cutter 3.3 through the bosses 1 and 7a.
The rotating wheels 4 and 4a are driven to rotate at the same speed regardless of the rotation of the wheels a and 3b.

Rotary cutters 3.3a, 3.3.3.1 and 3.3.3a are attached to these same shafts 2 so that they can be rotated separately from the father H. b and rotary drive wheels 4, 4a to support, rotate and cut the log A. In this case, the outer circumference of the 114 log A is mainly supported by the rotary cutters 3.3a, 31+. knife 1
) 15.5a, 5b, and the log Δ
5. For cutlery to provide stable support for blades. ! The diameters of ia and 5b and the diameters of the rotating wheels 8 and 8a of the rotating drive wheels 4 and 4a are set approximately equal. Also, the cutting and rotation of the log Δ by the rotary cutters 3, 3a, and 3b alternately cut on the same axis? For example, the diameter of each rotating ring 8, 8a is set somewhat smaller than the diameter J of the cutting edge circle of each rotating cutter 3.3a, 3. The outer peripheral surface of the rotating ring 8.88 ("J 1'
1!7! lff1 i'i+! Month 9 Using a protruding body with a sharp tip, the tip of the protruding body protrudes from the cutting edge circle of the rotary cutters 3.3a, ]+, and the rotary cutters 3, 3a, and 3b cut the log Δ. It is constructed so that continuous rotation can be applied to the log Δ by biting the protruding body into the log. J3, a serrated body is used as a friction member 9 on the outer periphery of the rotating wheels 8, 8a of the rotation drive wheel 4° 4a, and the serrated body is slid at an appropriate interval on the outer periphery of the rotating wheels 8, 8a. At the same time, the tip of the serrated body is cut with rotating cutters 3, 3a, 3.
The diameter of the outer periphery of the rotary wheels 8 and 8a is set to be slightly smaller than the diameter of the blades 5a and 5b for cutlery by 1'+D shape in c1#1. Even if the 161 tree Δ is rotated 1111 times by 4111 times, it can be implemented in the same manner as IXI.

The other set of rotary cylinders 12 is constructed in the same manner as the rotary cylinders 1 and J3, and has one or more rotary cutters 14, 14a, 14b on the shaft 13 (in the actual example, 3 and 1). One or more rotary drive wheels 15.15a (two in the embodiment)
Gl 3f! alternately in the axial direction of shaft 13. The rotary cutters 14, 14a, 14b are formed so as to be able to cut the raw wood in the tangential direction.
The cutter 1 is fixed to the shaft 13 (the edges 6.16a and 16b are formed with a cutter 11 such as a spiral blade), and the rotary drive wheel 15.1'5a is a boss 18 rotatably attached to the shaft 13.
．． 18a is formed by fixing rotating wheels 1g and 19a, and the outer peripheral surface of the rotating ring 19.19a is provided with friction 81 such as protrusions or serrations;
The cutter drive mechanism 21 is connected to the rotary drive wheels 15 and 14b.
5a has wl, wheel drive! A rotary cutter 14 equipped with FJJ IXI 4M 22 and with N1 installed alternately on the shaft 13.
14a, 141+ and rotation drive! 11I wheels 15, 15a and J: In order to stably support and rotate the log A and 9) cut, the cutting edge circles of the rotary cutters 14.14a, 14b, the cutter 16.16a, 1 (ib, rotation Ring 19, 1
Set the diameter of 9a etc.

The rotary cylinder 1 and the rotary cylinder lNl2 are set so that the axis 2 of the rotary cylinder 1111 and the axis 13 of the rotary cylinder 12 are approximately parallel to each other so that the outer peripheral part of the log Δ can be supported at two locations J3 on the cross section, and both The rotary cylinders 1 and 12 are arranged close to each other.

In addition, in each rotation 111ii1, 12, cutting is not performed at the rotary drive wheel portion, so that the rotary cylinder 1 and the rotary cylinder 12 are connected to each other's rotary cutter so that the log Δ can be cut over its entire length. A rotary cutter and a rotary drive wheel are attached to their respective shafts so as to face the rotary drive wheel, and the 41 effective length in the axial direction of both or either of the rotary cutters is set to 41 in the axial direction of the rotary cutter. It is set to be longer than the total length of. That is, the rotary cutter with rotation IN;
Rotation Iff relative to rotation drive wheel 2 15.158
@2. @13 has a rotary cutter and a rotary drive wheel (one stage, and one rotation
1Fi 1 rotary cutter 3, 3a, 3b and rotary cylinder 12
] The effective length of both or one of the rotary cutters 14.14a and 14b (the length that can be cut by the rotary cutters on both sides) is set to be longer than the total length of the log. The direction rotation 11Q1.12 is usually placed close to the J: which can support and cut the raw wood even if it becomes small in diameter, but the direction rotation 1]) 11. IIR
, * Corresponding to the change in the diameter of A, the direction rotation1)'11.1
2 can be grooved so that they can be moved close to each other and separated from each other. In this case, it is possible to stably support and cut the log regardless of changes in diameter, and it is also easy to insert and remove it from the log. becomes. In addition, the rotary drive 1 of each rotary cylinder 1, 12
/J wheels 4, 4a, 15, 15a should be rotated so as to be able to rotate the log Δ in the same direction and at the same speed as indicated by solid line arrows 1 in Fig. 1, and rotating cutters 3.3a, 31+, 1
4.14a and 14b are rotated in an appropriate direction, for example, inward as indicated by the dotted arrow in FIG.

support? a25 is one or more in the longitudinal direction of log Δ (
In this embodiment, the outer peripheral part of log A is supported at three points in the cross section by two dark blue rotary cylinders 1 and 12, and is supported by a shaft 26, a motor,
The operation of the fluid pressure cylinder, etc. (it is installed so that it can move forward and backward with the trace lever 27, and so that the log A can be compressed in the direction of each rotation 11, 12. The support wheel 25 is connected to the rotary cylinder 1,
1l so that it can be rotated according to the rotation to the log by 12
The axis of i12G is arranged approximately parallel to the axis of each rotation 111°12, and if necessary, the drive 1;114i+: which rotationally drives the support wheel 25 is The support wheel 25 can also be rotated in the same direction and at the same speed as the rotation direction by the rotation IRI, 12.
Instead, a 4M rotary cylinder similar to rotary cylinders 1 and 12 is provided,
It is also possible to have a configuration in which the third rotary cylinder supports, rotates and removes the raw wood Δ, and in this case, the raw wood can be processed at a higher speed.

The above J: Sea urchin This invention has two parallel axes in which a rotary cutter for supporting and cutting the original and a rotary drive wheel for rotating are installed in the axial direction respectively. It has a structure in which the rotary cutter and the rotary drive wheel of each rotary barrel are relatively covered, and the effective length of the rotary cutter of either or both of the rotary barrels is set to be longer than the total length of the log, It is possible to cut the original wood over the entire length of the wood, and it also has two sets of ρ1 turns (close to J or near N1), and supports the wood at its outer periphery with a support wheel while cutting. Because it is a rental-less cutting process, almost the entire amount of raw wood can be cut, resulting in a large yield.
J, and since the outer circumference of the log is supported at three points in the cross section, the log can be stably supported and rotated,
Because the outer circumference is cut tangentially while rotating the log, 1
A good chip having a length in the direction of the fibers of 31 and 11] was obtained, and since the cutting was performed using multiple sets of rotary cylinders, the cutting was performed with a cutting rate of 0. It has various effects and makes a great contribution to the treatment of small diameter trees.

[Brief explanation of the drawing]

The drawings show an embodiment of the present invention;
The figure is a plan view of FIG. 1. 1... Rotating body, 2... Love, 3.3a, : Th...
Rotating force/torter, 4.4a...Rotating drive wheel, 10...
・Cutter drive I, 11... Drive wheel drive mechanism, 1
2... Rotating cylinder, 13... Shaft, 14.14a, 14b
... Rotating cutter, 15.15a... Rotating drive wheel,
21...Cutter drive! IIIBM side, 22... Drive wheel drive mechanism, 25... Support wheel, A... Raw wood. Patent applicant Masayuki OJ

Claims (2)

[Claims] (1) A rotary cutter for supporting and cutting one or more logs and a rotary drive wheel for rotating the logs are attached alternately in the axial direction to two wooden shafts whose axes are parallel to each other.
It is equipped with a pair of rotary cylinders close to each other or with a gap between them, a cutter drive mechanism and a drive wheel drive mechanism for respectively rotating the rotary cutter and rotary drive wheels of the two sets of rotary cylinders, and a double-four-turn IH for cutting logs. 17 rotary cutters and rotary drive wheels are installed on each shaft so as to face each other, and the outer periphery of the C raw wood is cut by the two rotary cylinders of silk. A centerless cutting device for raw wood, which is equipped with a support ring that is capable of supporting a section at three locations and is movable forward and backward. (2) The centerless cutting device for raw wood according to claim (1), wherein the support ring is a rotary cylinder.