JPH0523830B2 - - Google Patents

Description

[Detailed Description of the Invention] (a) Industrial Application Field The present invention comprises a dehulling unit, a wind sorting unit for sorting out what has been rubbed off from the sheathing, and a wind sorting unit that sorts mixed grains of brown rice after the wind sorting. This relates to a cylindrical rotary sorting rice huller comprising a rotary sorting section, and more specifically, a plurality of transfer gutter are installed horizontally in the sorting cylinder of the rotary sorting section in parallel with each other and at different positions up and down. This invention relates to an improvement in a sorting and adjusting device that is constructed by providing a partition plate on the upper edge of the receiving side of the device.

(B) Prior art The rotary sorting section of the cylindrical rotary sorting huller as described above has a process in which the grains to be sorted flow from one end of the sorting cylinder to the other end. A transfer gutter installed horizontally inside the sorting cylinder scoops up the sorted grains that have entered the many depressions formed on the inner peripheral surface by rotating the sorting cylinder, and when they reach the escape position, they fall through the depressions and escape. It is configured to be collected by

(c) Problems to be Solved by the Invention Therefore, the position at which sorted grains fall and escape from the depressions varies depending on the structure of the rotary sorting section, that is, the size and shape of the depression itself, the rotational speed of the sorting cylinder, etc. In addition, if the grain to be sorted has a shape where the length is relatively shorter than the width or thickness, or if the grain is relatively small, it will fit deeply into the recess and the escape position will be at a high position. The escape position changes slightly as the robot moves.

Therefore, when relatively short and short grains or small grains are mixed in the grains to be sorted, there is no difference between brown rice of normal shape or size and short or small grains, and there is a difference between the two. There is no height difference in the escape position from the hollow, making it extremely difficult to separate brown rice from paddy.

In the first place, in an attempt to improve efficiency while maintaining good sorting accuracy using a rotating sorting section, the applicant installed sorting cylinders in multiple stages, upper and lower, and the upper stage had a recess that reached the highest level. Sorted into brown rice that can be scooped up and escaped, brown rice and paddy that can escape in a range from high to mid-level, and paddy that can escape or not be scooped out at low levels, and the sorted brown rice is taken out of the machine and separated into brown rice and paddy. A sorting mode has been adopted in which the mixture is re-sorted in the lower sorting cylinder, but in this sorting mode, the ratio of paddy to brown rice in the rice subjected to the re-sorting action in the lower sorting cylinder becomes large. When the grains to be sorted are under the above conditions, there is no difference in shape and size between brown rice and paddy grains, and as a result, it is inevitable that the sorting accuracy of the sorting cylinder in the lower stage will be adversely affected. .

Therefore, the present invention provides a sorting adjustment device that can eliminate the adverse effect on sorting accuracy when the grains to be sorted contain relatively short and short shapes or small particles as described above. This is what we intend to provide.

(d) Means for Solving the Problems In order to achieve the above object, the rotary sorting huller of the present invention includes a shedding section, a wind sorting section for sorting the grains that have been slipped off from the shedding section, and a It consists of a rotary sorting section that sorts the mixed grains of brown rice after sorting, and a plurality of transfer troughs are horizontally installed in the sorting cylinder of the rotary sorting section in parallel with each other and at different positions up and down, and are located at the upper level. A partition plate is installed on the upper edge of the receiving side of the transfer gutter, and an adjustment plate is installed on the receiving side of the lower transfer gutter so that they can be opened and closed freely. It is possible to block it to a non-accepting state.

(E) Embodiment Next, an embodiment of the present invention will be described with reference to the drawings. FIG. 1 is an overall side view showing the inside of a cylindrical rotary sorting huller according to the present invention, and FIG. Fig. 3 and Fig. 4 each show an explanatory view of the operation, and Fig. 5 shows another example of application.

Reference numeral A denotes a removal section where the rice tank 1 and a pair of removal rolls 2 are stored and placed on a shaft; B refers to a wind sorting section which wind-sorts the rice husks and the like from the rice scraped by the removal section; and C refers to a rotary sorting section.

The rotary sorting section C is formed from one end side X of the sorting cylinders 3 and 4, which have a large number of depressions a formed in the inner circumferential surface, and have one end side X and the other end side Y horizontally suspended so as to be rotatable by a roller R. In the process of gradually flowing the fallen rice (mixed grains of brown rice and paddy) toward the other end side Y, the primary rotary sorting section mainly scoops up the brown rice, which is smaller in size than normal paddy, through the depression a and takes it out. It is configured by arranging a cell Ca and a secondary rotary sorting section Cb above and below.

The primary rotary sorting unit Ca located in the upper stage
The brown rice scooped up to the highest level by the sorting cylinder 3 passes through the rice sorter E and is transferred to the secondary rotation sorting section.
The brown rice and paddy scooped up from high to mid-range are combined with the scooped up brown rice of Cb, and the brown rice and paddy scooped up from the high level to the middle range are transferred from the supply gutter H to the sorting cylinder 4 of the secondary rotary sorting section Cb to undergo the sorting action again. The paddy that cannot be scooped up is returned to the paddy tank 1 from the other end Y, and then released again.

The brown rice scooped up by the sorting cylinder 4 of the secondary rotary sorting section Cb and the brown rice that has passed through the rice sorter E from the primary rotary sorting section Ca are combined and placed in a suitable place outside the machine after wind sorting. The structure is such that the rice is taken out, and the rice that cannot be scooped up in the secondary rotary sorting section Cb is merged into the new fallen rice.

D is a grain lifting machine which is installed on the left side of the machine and supplies the scraped rice to one end X of the primary rotary sorting section Ca via a transfer device.

The transfer device is composed of a scraped rice transfer gutter 5 which has a supply port 5a at one end side X, and a built-in screw conveyor 5b. A brown rice receiving gutter 6 connected to the rice sorting machine E is installed horizontally, and furthermore, on the receiving side F of the fallen rice transfer gutter 5 and the brown rice receiving gutter 6, a re-sorting grain receiving gutter 7 is installed horizontally in parallel with each other. One end side X communicates with the supply gutter H and has a screw conveyor 7 built therein.

Next, 8 is a partition plate whose base end is pivotally mounted on the upper edge of the receiving side F of the brown rice receiving trough 6 and is swingably provided.
It is configured so that it can be tilted in the opposite direction and moved to a position where the upper end abuts the standing wall 6b of the brown rice receiving gutter 6, and when it is moved to the position where it abuts the standing wall 6b of the brown rice receiving gutter 6, brown rice reception is blocked. I'm starting to do that.

Therefore, if the crushed rice (mixed grains of brown rice and paddy) supplied to the rotary sorting section C is normal in shape or size, the partition plate 8 in the primary rotary sorting section Ca is placed on the receiving side F. The brown rice is tilted and kept at a desired angle to take the receiving position, and the brown rice that is scooped up to the highest level is received in the brown rice receiving gutter 6, transferred to one end side Take steps to remove.

However, as mentioned above, when the supplied scraped rice is relatively short and short in length, has small grains, or when these grains are mixed, the partition plate 8 is used as shown in Fig. 3. is rotated using the base end as a fulcrum to close the upper part of the brown rice receiving gutter 6, that is, to switch from the receiving attitude to the non-receiving attitude.

By doing so, naturally the brown rice that is scooped up into the brown rice receiving gutter 6 also flows down the back surface 8a of the partition plate 8 and falls into the re-sorting grain receiving gutter 7, and the brown rice that is scooped up in the range from high to middle.・The mixed grains that merge with the paddy and are supplied from the supply gutter H to the lower secondary rotary sorting section Cb are sorted by the primary rotary sorting section Ca, and the entire amount except for the paddy grains that is returned to the removal section A is transferred to the sorting tube. It is supplied to the inner circumferential surface of the body 4 and flows repeatedly while being deviated in the direction of rotation of the cylindrical body 4, so that most of the paddy floats onto the brown rice layer and scoops up the brown rice that occupies the lower layer.

In addition, as shown in FIG. 4, the adjustment plate 9, which is pivotably installed on the receiving side F of the resorting grain receiving trough 7 so as to be able to open and close freely, is in the non-receiving state above the receiving side F of the resorting grain receiving trough 7. It is installed so that it can be closed off.

Further, FIG. 5 shows an application example of the present invention, in which the sorting cylinders are not arranged in multiple stages, only the primary rotary sorting section Ca is used as a single unit, and the fallen rice transfer gutter 5 and re-sorting grain receiving gutter 7 are combined, a drop port 10a is provided at one end side X, and a circulation gutter 10 is installed horizontally, which is equipped with a screw conveyor 10b for transporting grains toward the drop port 10a side. When the partition plate 8 is switched to the non-receiving position as shown by the imaginary line, the scooped up items fall into the circulation gutter 10 and merge with the newly transferred fallen rice to the dropping port 1.
Brown rice is supplied again to the inner peripheral surface of the sorting cylinder 3 from 0a and circulates inside the sorting cylinder 3, and is scooped up when there is a small amount of mixed grains of brown rice and paddy at the start or end of sorting work. This prevents rice grains from being accidentally scooped up inside and reducing the sorting accuracy.

Note that the arrows shown in each of FIGS. 2 to 5 indicate the rotation direction of the sorting cylinder.

(F) Effects of the Invention As described above, the present invention includes a dehulling unit, a wind sorting unit for sorting what has been slipped off from the dehulling, and a rotary sorting unit for sorting the mixed grains of unhulled paddy after the wind sorting. A plurality of transfer channels are installed horizontally in the sorting cylinder of the rotary sorting section in parallel with each other and at different positions vertically, and a partition plate is installed at the upper edge of the receiving side of the upper transfer channel, and a partition plate is installed at the upper edge of the receiving side of the upper transfer channel. A regulating plate is mounted on the receiving side of each transfer gutter so that it can be opened and closed freely, and the upper part of the receiving side of each transfer gutter can be closed to a non-receiving state by using the partition plates and the adjusting plate. Therefore, there is no need to provide a separate closing means and the structure is simple, but if the fallen rice has a relatively short length or small grains, or if these grains are mixed. However, by switching to a special sorting method that closes the upper part of the receiving side of the transfer gutter, it is possible to perform the sorting work well without reducing the sorting accuracy. If the amount of paddy grains is small, the upper part of the receiving side of the transfer gutter is closed to a non-receiving state and the inner circumferential surface of the sorting cylinder is circulated to avoid accidentally scooping up paddy grains. It is possible to work with good sorting accuracy throughout the entire process.

[Brief explanation of drawings]

Fig. 1 is an overall side view showing the inside of the cylindrical rotary sorting huller according to the present invention, Fig. 2 is a view of the main parts as seen from the rear, and Figs. 3 and 4 are action explanatory views. , FIG. 5 shows another example of application. A...Departing section, B...Air sorting section, C...Rotating sorting section, F
...Receiving side, 3, 4... Sorting cylinder, 6... Brown rice receiving gutter, 7
... Re-sorting grain receiving gutter, 8... Partition plate, 9... Adjustment plate, 10
…Circulating gutter.

Claims (1)

[Claims] 1 Consists of a dehulling section, a wind sorting section for sorting what has been slipped off from the dehulling, and a rotary sorting section for sorting mixed grains of brown rice after the wind sorting, and a plurality of sorting cylinders in the rotary sorting section. The transfer troughs are horizontally installed parallel to each other and at different positions up and down, and a partition plate is installed on the upper edge of the receiving side of the upper transfer trough, and an adjustment plate is installed on the receiving side of the lower transfer trough, which can be opened and closed freely. 1. A sorting adjustment device for a cylindrical rotary sorting rice huller, characterized in that the upper part of the receiving side of each transfer gutter can be closed in a non-receiving state by the partition plate and the adjusting plate.