JPS63283902A - Wood chipper - 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 Field of the Invention The present invention relates to a chipper for cutting wood into pieces or chips.

(Prior Art) Conventionally, in this type of chipper, a rotary disk equipped with a plurality of cutting blades is supported rotatably around an axis via a bearing on a pedestal, and the pedestal is mounted opposite to the cutting blades. It is known that a wood input port is provided above the receiving blade provided on the top. Since the chips produced by this chipper vary in size, they are sorted into large, medium and small blocks by a sorter, and the large blocks are again divided into small blocks by a crusher.

(Problem that Gomei is trying to solve) By the way, in the conventional technology, since there are many large blocks of chips, a large amount of chips must be passed through the crusher, which makes the work inefficient, and the chips that have been put through the shredder must be re-sorted. However, there is a problem in that productivity is low.

Additionally, in the paper manufacturing stage, large chips do not dissolve in a predetermined amount of time, and small chips turn into sludge within a predetermined amount of time, so it is necessary to create chips of the optimal size. There is a problem that the yield of chips of this size is low and the cost is high.

(Means for solving the problems) The present invention has been made in view of the above-mentioned circumstances.
The purpose of this project is to provide a chipper that can improve chip yield by disassembling cut chips into pieces of optimal thickness.To achieve this goal, we have taken the following technical measures. Ta. That is, in the present invention, the rotary disk 4 equipped with the cutting blade 5 is mounted on the pedestal 1 via the shaft 8 through the bearing 9.10.
In a wood chipper, a wood input port 13 is provided above a receiving blade 15 which is rotatably supported on a shaft and which is provided on a pedestal 1 facing a cutting blade 5, with the disc 4 in between. A chip disassembly member 1 is installed on the opposite side of the wood input port 13.
A configuration with 6 was adopted.

(Function) When the wood pieces cut by the cutting blade come out from the slit 7 of the rotating disk 4 to the back side of the rotating disk 4 in a long line, they collide with the chip disassembly member 16 while rotating, and the pieces of wood are removed from the rotating disk 7. Due to the shearing action of the opening edge 7A of the slit 7 and the chip disassembling member 16, the chips are disassembled into chips of a predetermined size. Note that the size of the chip depends on the distance between the back surface of the rotary disk 4 and the chip disassembly member 16.

(Example) Embodiments of the present invention will be described below based on the drawings.

Reference numeral 1 designates a pedestal, which has an inclined top plate IA that is lower on the near side when viewed from the front and has a triangular shape when viewed from the side. A chip receiving chute 3 is formed from directly below this opening 2 toward the rear, and both left and right sides of this shade 3 are closed to prevent chips from scattering.

4° is a rotating disk, and four cutting blades 5 are fixed radially at equal angles on the front side in a replaceable manner with bolts 6, and a slit 7 for chip ejection is provided on the back of each cutting blade 5. It is formed in a penetrating shape. This rotating disk 4 is wedged to a rotating shaft 8, and approximately one-third of the rotating disk 4 is fitted into the disk fitting opening 2 of the top plate IA from the upper side. It is mounted on the pedestal 1 via a shaft 10 in an inclined manner. A pulley 11 is wedged on the rear end of the rotating shaft 8, and a motor with a reduction gear (not shown)
It is designed to be driven by.

Reference numeral 12 denotes a blade receiving stand, which is provided on the inclined top plate IA of the pedestal 1 and located on the left side in front of the opening 2. The upper part of this blade receiving stand 12 is a wood input port 13, and a wood input hopper is provided. 14 is fixed. A plate-shaped receiving blade 15 is slidably fixed to the upper surface of the front inclined plate 14A of this lumber input hopper 14 with a bolt 15A so that its cutting edge rests on the receiving blade stand 12. If the cutting edge becomes worn out, the cutting edge can be corrected and the position of the cutting edge can be adjusted so that the distance from the rotating disk 4 becomes appropriate.

Reference numeral 16 denotes a chip disassembly member, which is attached to a mounting frame 17 erected on the upper surface of the tilted top plate IA of the pedestal 1 at the rear side of the opening 2 and behind the wood input port 13.
It is installed so that the distance S between the two and the other is adjustable. This chip disassembly member 16 includes a mounting board 18 that also serves as a lid, left and right sides #j 19.20 protruding parallel to each other on both left and right sides of its inner surface (front surface), and front end facing surfaces of both side plates 19.20. It is composed of a plurality of chip disassembly rods 21 fixed in parallel in an extending manner between them.

The chip disassembling rods 21 are fixed horizontally and at equal intervals, and a spacing/reinforcing rod 22 is fixed vertically at the center in the left-right direction. A mounting bolt hole is provided around the mounting board 18 that also serves as a lid, and this mounting bolt hole is fitted into a mounting bolt 23 whose one end is fixed to the rear surface of the mounting frame 17. A mounting board 18 is fixed to the adjusting nut 24 and the fixing nut 25 in a pinched manner.

The lower member 17A of the mounting frame 17 is made of a plate material, and is fixed at a position where sufficient space is secured between it and the chip disassembly rod 21 so as not to hinder the dropping of the chip C. With the rear surface of member 17A? To.

The rear surfaces of the members are made to coincide. 26 is a reinforcing member.

27 is a casing, and a wood input opening 28 is formed in the wood input port 130 portion.

Reference numeral 29 denotes a chip delivery conveyor, which is disposed below the chip receiving shade 8 in the pedestal 1 so that its delivery end protrudes to the outside of the pedestal 1.

Reference numeral 30 and 31 denote an opening/closing lid for inspecting the rotating disk, which is provided on the right rear surface of the casing 27.

According to the above embodiment of the present invention, when the rotation of the rotary disk 4 is started and the wood W is put into the wood input hopper 14, the wood W is placed on the receiving blade 15 as shown in FIG. The stone cutting blade 5 rotates in the direction shown by arrow A in the figure.
The cut wood blocks B are discharged from the slit 7 of the rotary disk 4 to the back surface 4A side in a continuous state.

Since the wood chip block B extending rearward from the rear surface 4A of the rotating disk 4 is rotating together with the rotating disk 4, the plurality of chip disassembling rods 21 arranged on the rear surface of the wood chip discharging section on the opposite side of the wood input port 13 The chips successively collide with the rotary disk 4 and are broken down by the shearing action of the opening edge 7A of the slit 7 and the chip disassembly rod 21, becoming chips C of a predetermined size, sliding on the back surface 4A of the rotating disk and passing through the chip receiving chute 3.
It falls onto the top, reaches the carry-out conveyor 29, and is carried out of the frame 1.

When changing the size of the chip C, loosen the fixing nut 25, then rotate the spacing adjustment nut 24 to move the chip disassembly member 16 in the direction indicated by the arrow in FIG. It is only necessary to adjust the distance S between the back surface of the disk 4^ and the end face of the chip disassembling rod 21 of the chip disassembling member 16, and it is possible to obtain chips C of an optimum size depending on the type of wood and the like.

The chip disassembling member 16 in the above embodiment is merely an example, and other structures may be used, such as combining the chip disassembling rods 21 in a mesh lattice shape, making the intervals unequal, or changing the intervals between the chip disassembling rods 21. The outer circumferential side of the rotating disk 4 may be wider than the center side, and other arrangements may be made so that the chips C are not clogged.

Further, the interval adjustment means for the chip disassembling member 16 is not limited to this embodiment, but the chip disassembling member 16 is attached to a slide stand provided on the top plate IA of the pedestal 1, and the chip disassembling member 16 is moved close to the rear surface 4A of the rotating disk. They can be spaced apart.

Furthermore, the design of the receiving blade 15 can also be changed arbitrarily.

(Effects of the Invention) The wood chipper according to the present invention has the chip disassembling member 16 located on the opposite side of the wood input port 13 as described above, so that the wood chips are discharged from the slit 7 of the rotating disk 4. collides with the chip disassembly member 16 and is reliably disassembled,
It is possible to obtain chips C of the optimum size, so there is no need to re-shredder as in the past, and the number of small chips is reduced, improving the chip yield, improving productivity and reducing costs. Since the structure is simple, it can be obtained economically.

[Brief explanation of the drawing]

The drawings show an embodiment of the present invention, and Fig. 1 is a right side view, Fig. 2 is a front view, Fig. 3 is a plan view, and Fig. 4 is an enlarged section taken along the line A-A in Fig. 1. Figure 5 is a cross-sectional view taken along line B-B in Figure 4, Figure 6 is a cross-sectional view taken along line C-C in Figure 4,
FIG. 7 is an explanatory diagram of the operation. DESCRIPTION OF SYMBOLS 1... Frame, 4... Rotating disk, 5... Cutting blade, 8... Rotating shaft, 9.10... Bearing, 13... Wood input port, 15... Receiving blade, 16...Chip disassembly member. Figure 2 3rd UA

Claims (1)

[Claims] (1) A rotary disk 4 equipped with a cutting blade 5 is rotatably supported on the pedestal 1 via bearings 9 and 10 around a shaft 8, and is provided on the pedestal 1 facing the cutting blade 5. This wood chipper is equipped with a wood input port 13 above a receiving blade 15, and is characterized in that a chip disassembly member 16 is disposed on the opposite side of the wood input port 13 with the disk 4 in between.