JPH0446885Y2 - - Google Patents

Description

[Detailed description of the invention] (a) Industrial application field The present invention relates to a disk-type chipper for obtaining wood chips, and more specifically to a disk-type chipper that can process even large-sized waste wood.

(b) Description of the prior art A disk-type chipper is used as a chipper for manufacturing wood chips in the lumber or paper manufacturing process, and cuts the charging material by the cooperative action of a plurality of cutting blades provided on a rotating disk and a stationary receiving blade. is publicly known.

In conventional chipper of this type, a bed anvil is attached to the casing almost horizontally,
The rotation locus of the cutting blade of the desk, which rotates around the vertical axis, is generally in a horizontal plane. That is, as shown in Fig. 8, the receiving blade B is arranged along one of the radii of the disc A rotating in the direction of the arrow, and the cutting blade rotating together with A is used to insert the cutting blade from the spout C. It turns wood into chips. In this case, due to the rotational direction of the desk A, the cooperative action between the cutting blade and the receiving blade B can only be obtained in the shaded area x, and the material is charged in the shaded area y. Also, cutting processing cannot be performed. Therefore, it is meaningless to provide a large spout C spanning the hatched areas x and y as shown by the dotted line in the figure, and there are also problems in terms of chip processing efficiency and material clogging. Therefore, the spout C had to be relatively small as shown in the figure, and could not handle large waste materials.

In order to process large waste materials, it is possible to increase the size of the disk itself, but this is not preferable in terms of operability and economy.

(c) Means for solving the problems Therefore, the present invention was created as a result of repeated studies to improve the drawbacks of the prior art as described above.

That is, an object of the present invention is to provide a new chipper that can process large waste materials that could not be processed with conventional compact disk-type chippers. The present invention provides a generally cylindrical enclosure provided to surround a rotating disk in a disk-type chipper that cuts wood to be processed into wood chips by cooperation between a cutting blade provided on a rotating disk and a stationary receiving blade. A vertically elongated spout is formed that extends over a roughly semicircular area on either the left or right side of the rotary disk, and the wood to be treated is charged into the operating area of the rotary disk through this vertically elongated spout. The conveyance surface of the vibrating conveyor for conveying the material to be treated to the spout is made narrow near the spout, and the material is fed into the spout in a vertically long cross-section in a direction perpendicular to the direction of conveyance of the material to be treated. It is characterized by

(d) Function Since a vertically elongated spout is formed in the enclosure that surrounds the rotary disk, the spout can be provided to cover almost a semicircular area of the disk rotation area, making it possible to process even large waste materials. can.

The material to be treated is conveyed to the spout by a vibrating conveyor, and by designing the conveying surface to become narrower as it approaches the spout, it is possible to make maximum use of the elongated, large-diameter spout shape.

(E) Embodiments The outline of the present invention has been shown above, and preferred embodiments of the present invention will be further explained with reference to the accompanying drawings. However, the present invention should not be construed as being limited to the following embodiments, but may have many modifications within the scope of the invention described in the claims of the utility model registration.

FIGS. 1 and 2 are a front view and a plan view of a chipper according to an embodiment of the present invention. A disk 1 is installed in a casing 20 of the chipper and is supported by a horizontal shaft, and is driven by a motor 5 at a predetermined speed in the direction of the first arrow (counterclockwise) through pulleys 4, 2 and a V-belt 3. It is rotated by A cyclone 7 is arranged above the casing 20,
It is connected by disk 1 and chute 6. The lower outlet of the cyclone 7 leads to a screen 8 which in turn leads to a product outlet 9 and a re-tip chute 10.

Further referring to FIG. 3, the disk 1 is covered by a generally cylindrical enclosure 12 at predetermined intervals so that its rotation is not hindered. A spout 13 is cut in the outer surface of the enclosure 12, and the waste material to be cut, which has been conveyed by the conveyor 11, is sent obliquely from the spout 13 to the disk 1 for chipping.

The relationship between the disk 1 and the spout 13 described above will be further explained with reference to FIGS. 4 and 5.
The spout 13 is large and vertically long so as to communicate with almost the entire area of the right semicircle of the disk 1 in the drawing. The waste material sent from the spout 13 is passed through four rotary cutting blades 2 radially provided on the disk 1.
1 and a horizontal receiving blade 30 and a vertical receiving blade 31 fixedly provided with a predetermined interval between the rotary cutting blade 21 and the rotation locus of the rotary cutting blade 21, and the cutting blade 21 is cut into chips.

FIG. 6 is a partial sectional view mainly showing how the cutting blade 21 is attached to the disk 1. FIG. The cutting blade 21 is pressed against the inclined surface of a receiving block 22 which is bolted to the disk 1 with a bolt 24 via an intermediate block 23. 25 is a back blade, which is fixed to the intermediate block 23 with a bolt 26. Since one side of the back blade 25 is joined to the cutting blade 21, a recess corresponding to the thickness of the head portion of the bolt 26 is formed on the one side of the back blade 25 in order to maintain a smooth joint state. There is. Reference numeral 27 denotes a Babbitt metal fitted between the rear end of the cutting blade 21 and the intermediate block 23. The chip size is adjusted taking into consideration the wear condition of the cutting blade 21, and the cutting blade is 21 has the function of absorbing shocks received.

Details of the conveyor 11 attached to the casing 20 are shown in FIG. In this embodiment, the conveyor 11 is a vibrating conveyor using a vibromotor 35. Further, the belt surface 36 of the conveyor 11 is configured to gradually become narrower as it approaches the spout 13, and the belt side wall portion 37 closer to the spout 13 gradually rises.

Next, the operation of the chipper according to the above embodiment will be explained.

The waste material to be cut is placed on the belt surface 36 of the vibrating conveyor 11.
It is conveyed over the disc enclosure 12 and fed into the first part of the disc through a vertically long large-diameter spout 13 cut into the disc enclosure 12. Here, the waste material is conveyed while being vibrated on the vibrating belt surface, and due to the presence of the rising portion 37 near the spout 13,
The horizontally long lumber is placed into disk 1 while standing.
Since the spout 13 is large and elongated over the entire semicircular area of the disk 1, even large pieces of waste material can pass therethrough.

The material fed into the disk 1 rotating at a required speed is chipped by the cooperative action of the rotary cutting blade 21 of the disk 1 and the stationary receiving blades 30, 31 (see FIG. 5). Since the spout 13 is long and vertically long, all materials shorter than the diagonal length of the spout 13 can be thrown in. That is, a material larger than the radius of the disk 1 may be fed. The reason why the horizontal receiving blade 30 and the vertical receiving blade 31 are disposed close to each other as receiving blades is to accommodate the size of such input materials.

The chip made in this way is disk 1.
The water is collected into the cyclone 7 via the chute 6 by four fans attached to the cyclone 7. Next, the chips are fed into the screen 4, and the chips cut to a desired size pass through the screen 4 as they are and are discharged from the product discharge port 9. Items larger than a predetermined size are fed from the screen 4 into a re-chip chute 10, and are subjected to the cutting process by the disk 1 again via a conveyor 11 and a spout 13.

In this embodiment, the attachment state of the cutting blade 21 to the disk 1 has also been devised.
The structure is such that no bolt head or the like protrudes into the chip passage area 28. In the case of conventional discs, the bolt head for attaching the cutting blade to the disc protruded into this chip passage area, so there were cases where once manufactured chips hit this bolt head and were crushed. According to the configuration according to this embodiment, such inconveniences can be appropriately avoided.

(f) Effects of the invention As explained above, according to the invention, since the anvil of the rotary disk is vertically provided, the spout can be made large and elongated over approximately the entire semicircular area of the disk. Therefore, the range of materials that can be processed by the chipper can be greatly expanded without changing the disk diameter.

In addition, by feeding the material into the spout in a vertically elongated state using a vibrating conveyor, the above-mentioned advantages of the vertically elongated spout can be maximized, and long and short waste materials and horizontal scraps are automatically transferred to the chipper. can be sent.

[Brief explanation of the drawing]

1 to 7 show an embodiment of the chipper according to the present invention, and FIG. 1 is a front view thereof;
Fig. 2 is a plan view thereof, Fig. 3 is a schematic diagram showing the spout shape and the positional relationship between the spout and the conveyor, Figs. 4 and 5 are schematic diagrams showing the positional relationship of the spout with respect to the disk, and Fig. 6 The figure is a partial sectional view showing details of the disk, and FIG. 7 is a perspective view showing details of the vibrating conveyor. FIG. 8 is an explanatory diagram schematically showing the relationship between a disk and a spout in a conventional chipper. 1... Disc, 11... Vibrating conveyor, 12
...Disk enclosure, 13...Spout, 20...
...Casing, 21... Cutting blade, 30... Horizontal receiving blade, 31... Vertical receiving blade.

Claims (1)

[Scope of utility model registration request] In a disk-type chipper that cuts wood to be treated into wood chips by cooperation between a cutting blade provided on a rotating disk and a stationary receiving blade, a generally cylindrical enclosure provided to surround the rotating disk includes the above-mentioned forming a vertically elongated spout that extends over a roughly semicircular area on either the left or right side of the rotary disk, and charging the wood to be treated into the operating area of the rotary disk through the vertically elongated spout; A conveying surface of a vibrating conveyor for conveying the material to be treated to the spout is made narrow near the spout, and the material is fed into the spout with a cross section of the material in a direction perpendicular to the conveyance direction being longitudinally elongated. A disc type chipper characterized by its structure.