JPS58114902A - Wood sawing device for sawdust manufacturing machine - 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 relates to a wood sawing device for a ground flour manufacturing machine, which allows ground flour to be produced extremely efficiently without any wood chips being mixed into the manufactured ground flour or causing clumping of wood chips. The purpose is to provide wood sawing equipment.

A sawdust manufacturing machine is a machine that uses a saw blade to grind scraps of wood or thinned wood from the tree-planting process, which has almost no material value, into sawdust. It is widely used as fuel, livestock feed, piggery fermentation sawdust bed, compost and building materials.

In the conventional 111I4 machine, a receiving blade is fixed at the end of the material supply path, and the material that reaches the receiving blade is ground into powder using a circular saw blade placed side by side, which is then composted using a suction blower, etc. However, small pieces of wood from sawing were caught between the saw blades, reducing the sawing performance), and wood pieces were mixed into the saw, reducing the product value of the sawn powder. In order to eliminate these drawbacks, we have tried to provide a screen made of a punching plate around the saw blade, and to have the central origin enter between the saw blades, but the problem is that the space between the saw blade and the screen is too large. In addition to this, it was not possible to eliminate the contamination of wood chips into the ground flour.

The present invention solves the above-mentioned drawbacks, and provides a flour making machine in which a sawing device lies at the end of the material supply passage.
The wood sawing device is composed of a horizontally installed receiving blade, a circular saw blade assembly in which a number of saw blades are mounted on a horizontal shaft at a predetermined pitch through spacers, and a screen on which the saw blades are assembled. , the receiving blade is fixed parallel to the horizontal axis and close to the trajectory of the cutting edge of the saw blade assembly, and there is a radius difference between the radius of the spacer of the saw blade assembly and the trajectory of the cutting edge, which is larger than this, and the trajectory of the blade and tip. It is characterized in that the radius and the difference in radius of the arcuate surface of the screen are each made up of a few layers, and the details will be explained below with reference to the illustrated example.

FIG. 1 is an overall side view of the ground flour manufacturing machine, in which a material supply device part A, a material presser part B, and a sawn powder outlet of a wood sawing device C9 are connected to the machine.

The present invention relates to the wood sawing device C, the details of which are shown in FIGS. 2 to 5.

FIG. 2 is a cross-sectional view of the wood-turning device in the direction perpendicular to the axis, and FIG. 3 is a plan view of the cross-section of the wood-turning device, with some parts omitted.

In the figure, reference numeral 1 denotes the terminal end of the material supply connection, and the first receiving blade 2 is fixed to the terminal end.

Reference numeral 1 denotes a saw blade assembly, in which a saw sleeve 6 is mounted on a main shaft 5 on which a driving pulley ◆ is pivoted at one end, and a number of saw blades 71, 7, . . . are mounted on a spacer 8. ．． 9 is a screen that is bored with a number of holes 1 through which the saw blade assembly is inserted. It is stretched below the body 3 over the cutting edge locus of the saw blade.

Reference numeral 11 denotes a second receiving blade, which is fixed above the position facing the first receiving blade 2. These first receiving blade 2 and second receiving blade 1
1 is a case where the cutting edge is located at a position advanced from the radial center line passing through the main axis S of the saw blade assembly 3 rotating in the direction of the arrow, and the distance between the two has become wider due to wear of the receiving blade and the saw blade. It is adjustable and fixed so that it can be brought close to the cutting edge locus.

One way to do this is to create a 1ft long hole in the direction of the receiving blade.
5, which is an enlarged view of part F in FIG.

In addition, the saw blade 7 and the spacer 8Fi, which constitute the saw blade assembly 3, and the difference in outer diameter between the cutting edge locus and the spacer 8 are combined so that the radius is about 3 mm, and are adjusted according to the wear of the cutting edge. As a means, a configuration is shown in which a fixed piece 81 fixed to the saw sleeve 6 and a divided movable piece 82 around the saw sleeve 6 are connected by left and right screws 83, and the outer periphery of the spacer 8 is connected to the section E in FIG. As shown in FIG. 4, it is preferable to have a protruding form with a chevron-shaped cross section.

Furthermore, as a means for making the screen 9 adapt to changes in the trajectory of the cutting edge due to wear, it is possible to use a seat on both end support portions, an eccentric cam, etc., and set the distance between them to be approximately t-3 m. Kamisha omitted.

The apparatus of the present invention configured as described above grinds the wood material sent from the material supply passage using the first receiving blade and the saw blade, and the produced ground powder falls through the holes of the screen and is deposited. By interposing a spacer with a small diameter (in radius) between the saw blades and narrowing the gap between the blade edge trajectory and the screen, it is possible to reduce the distance between the saw blades of the wood and the threshold space The clogging of wood chips and the mixing of wood chips into the ground powder are eliminated. The reason for this is the centrifugal action caused by the high speed rotation of the saw blade assembly, the decrease in the clamping force due to the narrowing of the clamping space formed between the saw blades, and the saw blade tip on the piece of wood between the blade edge locus and the screen. This is because by scraping up the wood chips that have partially entered the screen, they are returned to the material supply section without falling through the holes in the screen. By providing receiving blades on the screen as a first receiving blade and a second receiving blade at the beginning and end of the screen, respectively, the wood chips scraped up between the saw blades and by the cutting edge are transferred between the second receiving blade and the saw blade. By the cutting edge.

The wood chips that pass through this second receiving blade are used as material between the saw blades by centrifugal force, and the efficiency of grinding powder production is significantly improved. We will be able to provide you with good quality ground powder

[Brief explanation of the drawing]

Figure 1 is an overall side view of the flour milling machine, Figure 2 is a schematic cross-sectional view perpendicular to the axis of the wood turning device, which is part C in Figure 1, Figure 3 is a horizontal cross-section of the same device, and Figure 4 is a schematic cross-sectional view of the wood-turning device, which is part C in Figure 1. FIG. 3 is an enlarged view of section E, and FIG. 5 is a detailed view of the lower part. Patent applicant Morishita Kikai Sales Co., Ltd. Representative Patent Attorney Iwao Sugimoto Patent Attorney Iwao Sugimoto Figure 3 Figure 4 Figure 5

Claims (1)

[Claims] (υ m1 where the wood sawing device lies at the end of the material supply path
In a 1m construction machine, the wood sawing device consists of a receiving blade installed horizontally, a saw blade assembly in which a number of saw blades are attached to a horizontal shaft at a predetermined pitch through spacers, and a saw blade assembly along the circumference HK of the saw blade assembly. It also consists of a screen with a large number of holes for ground powder to fall through, and the receiving blade is fixed parallel to the horizontal axis and close to the axis of the cutting edge of the saw blade assembly. A wood sawing device for a sawing powder manufacturing machine, characterized in that the difference in radius between the radius of the seat and a larger trajectory of the blade edge, and the difference in the radius of the radius of the edge of the blade and the arc surface radius of the screen are each small. (2) The wood sawing device of the ground flour manufacturing machine according to claim 1, wherein the difference in radius of the spacer, the trajectory of the cutting edge, and the screen is approximately 3 to 4 centimeters. (3) The spacing between the spacer and the screen of the receiving blade 9 can be adjusted with respect to the trajectory of the cutting edge. The wood sawing device of the ground flour manufacturing machine according to claim 1, which is located at two locations: the terminal end and another location along the trajectory of the cutting edge.