JPS63160517A - Scraping and cutting blade in disc cutter - 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 INDUSTRIAL 1 Nono This invention is a disc cutter that cuts a culm discharged from a culm opening of a combine harvester, etc. using a plurality of cutting blades attached to a pair of rotating shafts. This relates to a cutting blade that can be used for both purposes.

(IL Medical) A conventional cutting blade for this type of disc cutter that also serves as a scraper is described in Japanese Utility Model Publication No. 54-6149.

In the case of ciI that is about to be exposed to sunlight and the above-mentioned conventional technology, there are large 2
Equilateral triangular feeding blades are provided protrudingly, and small wave blade groups are formed on the outer periphery of the circular metal plate during the feeding period.
The feeding blade and the wave blade group are not continuous and have a step, creating a blind spot behind the feeding blade, resulting in a discontinuous feeding action and cutting action.

The present invention aims to eliminate the above-mentioned drawbacks and to provide a cutting blade that can perform raking and cutting operations continuously and smoothly.

Scraping blades 2.2 are formed at predetermined intervals on the outer periphery of a metal disk 1 for making a fortune telling, and the scraping blades 2.2 project obliquely toward the rear and outward in the rotational direction (a). Rotation direction (A) A cutting blade that also serves as a scraping blade in a disc cutter is formed by continuously forming three groups of saw blades with a small pitch between the base of the scraping blade 2 adjacent to the rear side.

The culm that is supplied by falling from the culm opening of the six-fruit combine harvester is rotated at predetermined intervals outside the gold r% disc 1 of the cutting blade (A) in the direction of rotation (A) rearward and outward. The scraping blades 2, 2 protrude obliquely toward the
) and the intersecting cutting blade (B). During this raking and cutting process, the culm that tries to escape backwards during the raking action of the raking blade 2 is pulled by three groups of small-pitch saw blades that continue backward from the top of the raking blade 2. Subsequently, it is raked in, and furthermore, even at the cutting position, the raking action and the cutting action are not interrupted because the cutting is performed continuously by the three groups of saw blades that are continuous without having a step with the raking blade 2. This is done continuously, with little variation in load, and the movement of the culm is smooth, allowing reliable raking and cutting.

3" 1 coin - In the illustrated example, the disc cutter of the present invention is installed below the culm conveyance cheno 4 of a combine, 5 is the threshing device of the combine, 6 is the cutter case,
The culm supply lower is opened at the top, and the exhaust culm discharge port 8 is opened at the bottom. Reference numeral 9 denotes a switching guide plate, whose front side rotates around a pivot 10, and as shown in FIG. It is configured so that it can be switched to a position in which the culm is closed and the exhaust culm transported by the transport ceno 4 is guided by the upper surface of the switching guide plate 9 to be transferred and guided to the rear of the disc cutter.

On the upper front side of the cutter case 6, that is, on the side closer to the supply lower, there is a low-speed rotating shaft 11 formed of a hexagonal column material.
A high-speed rotation shaft 12, which is also formed from a hexagonal column, is mounted behind and below the low-speed rotation shaft 11.

The low-speed rotating shaft 11 is provided with cutting blades (
A), (A) are attached, and the high-speed rotation shaft 12 is equipped with disc-shaped cutting blades (B), (B
) is attached to the cutting blade (A), which also serves as a rake, with part of its outer circumference intersecting (A), and the blade holding plate 13°13 and the positioning collar 1 are attached.
It is held by 4.

The scraping/cutting blade (A) forms scraping blades 2.2 that project obliquely toward the rear and outward in the rotational direction (A) at predetermined intervals on the outer circumference of the metal disc 1, and the scraping blades 2.2 Three groups of small-pitch saw blades are continuously formed between the top and the base of the scraping blade 2 adjacent to the rear side in the rotational direction (a). Further, the scraping blade 2 and the saw blade 3 are formed into a dish shape by being slightly bent laterally from the bending line (S).

Further, the scraping cutting blade (A) is held by a positioning collar 15 and a blade holding plate 16.16.

Reference numeral 17 denotes an idling vibrator for preventing wrapping, and 18 is an elastic guide rod, which is attached to a mounting shaft 19 whose upper end is provided on the switching guide plate 9 and hangs down, and which is attached to the scraping blade 2 of the scraping and cutting blade (A). It is located within the area of raking action.

The culm fed from the culm conveying cheno 4 into the cuffer case 6 via the supply lower is cut by the raking action of the raking blades 2, 2 of the raking/cutting blade (A) and the guidance of the guide rod 18. It is transferred to the intersection with the blade (B) and cut.

During the raking action by the raking blade 2 of the raking/cutting blade (A), the culm that tries to escape to the rear side in the rotational direction (A) is a small pinch saw that continues from the top of the raking blade 2. The culm that is raked by the blades 3 and 3 is continuously sent to the cutting section, and the culm that is sent to the cutting section is continuously cut by the raking blade 2 and the saw blade 3 (cutting blade CB). Since the culm is pressed to the side and cut, the cutting action of the culm is not intermittent and load fluctuations are small, and the movement of the culm is smooth and the culm can be reliably cut without disturbing its posture.

[Brief explanation of the drawing]

The drawings show one embodiment of the present invention, in which Fig. 1 is a side sectional view, Fig. 2 is a plan sectional view of the main part, and Fig. 3 is a front view of the cutting blade (A) that also serves as a rake. Figure 4 is a sectional view taken along line C-C in Figure 3.
5 is a sectional view taken along the line DD in FIG. 3, FIG. 6 is a rear view, FIG. 7 is a right side view, and FIG. 8 is a bottom view. In the figure, 1 is a metal disk, 2 is a drawing blade, 3 is a saw blade, (
A) shows the cutting blade that also serves as a rake, (B) shows the cutting blade, and (A) shows the rotation direction of the cutting blade that also serves as a rake (A). Figure 7 Figure 6 Figure 8 Figure 4 IS2 Figure 3

Claims (1)

[Claims] Scraping blades 2, 2 are formed at predetermined intervals on the outer periphery of the metal disk 1, and protrude obliquely toward the rear and outward in the rotational direction (A), and the tops of the scraping blades 2 and the rear side in the rotational direction (A) are formed. A cutting blade for a disc cutter that also serves as a scraping blade, in which three groups of small-pitch saw blades are successively formed between the base of two adjacent scraping blades.