JPS60168568A - Rotoary grain sorting apparatus - 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 Industrial Application] The present invention relates to a sorting device for sorting brown rice from mixed rice after hulling.

[Conventional technology]

A rotary sorting cylinder with many pot holes formed in its inner circumferential surface is installed horizontally, and one end of the rotary sorting cylinder has a supply section for a mixture of brown rice and paddy, and the other end has a paddy discharge section. A rotary grain sorting device is provided with a brown rice receiving trough with an open top surface extending in the axial direction of the sorting barrel in the rotary sorting barrel,
This is disclosed in Japanese Unexamined Patent Publication No. 49-24746 as a prior art.

In this rotary grain sorting device, the mixed rice supplied into the sorting barrel is scraped up to a height defined by the rotation of the sorting barrel, and then falls to the bottom, forming a layer on the discharge side. During the movement, the brown rice of the mixed rice is lifted up to a relatively high position while being stuck in the hole in the pot and then falls, and the paddy of the mixed rice moves to fall from a lower position than the brown rice. Taking advantage of this, the brown rice falling from a high position is caught in the brown rice catcher and taken out.
In this case, the height at which brown rice and paddy fall varies depending on the variety and/or moisture content, supply amount, etc. It is proposed to allow only brown rice to enter the brown rice receiving channel by adjusting the rotation of the entire receiving channel in the direction of rotation of the sorting cylinder.

[Problem that the invention seeks to solve]

However, since the brown rice receiving gutter is large and heavy, it is difficult to adjust the entire brown rice receiving gutter in the rotating direction of the sorting cylinder.
The structure for supporting this brown rice receiving gutter in a rotationally adjustable manner is complicated, and the opening width of the brown rice receiving gutter in the rotating direction of the sorting barrel is always constant. If the rotation is adjusted so that the side plate on the mixed rice raking side in the sorting cylinder is lowered, the side plate on the opposite side from the mixed rice sowing side in the sorting cylinder will also rotate in the same direction, so that the mixed rice can be removed from the concave part. The small grains of brown rice lifted while stuck in the brown rice tray pass through the gap between the side plate on the opposite side to the side plate on the scraping side and the sorting barrel without falling into the brown rice receiving gutter. However, there was a problem in that the rice would return to mixed rice again, which would reduce the sorting ability.

In the rotary grain sorting device as in the prior art, the present invention does not rotate and adjust the entire brown rice receiving gutter within the sorting barrel, but adjusts the rotation of the brown rice receiving gutter in the rotational direction of the sorting drum. By providing an adjustable partition plate that
In addition to solving the above-mentioned problems, the present invention is designed to prevent deterioration in sorting ability and sorting accuracy due to rotational adjustment of the adjusting partition plate.

[Means for solving problems]

Therefore, in the present invention, a rotary sorting cylinder having a number of pot holes formed in the inner circumferential surface is installed horizontally, and a supply part for mixed rice of brown rice and paddy is installed at one end of the rotary sorting cylinder, and a supply part for mixed rice of brown rice and paddy is installed at the other end of the rotary sorting cylinder. In a rotary grain sorting device, each part is equipped with a paddy discharge part, and the rotary sorting barrel is provided with an open-top brown rice receiving trough extending in the axial direction of the sorting barrel, A spindle is disposed at the upper end of the side plate on the mixed rice scraping side in the sorting cylinder among the left and right side plates of the brown rice receiving trough, and at a position approximately at the center of the sorting cylinder. The base end of the adjusting partition plate is attached to the base end of the adjusting partition plate, which rotates in the direction of rotation of the sorting cylinder.

[Action/effect of the invention]

In other words, with this configuration, in order for the brown rice picked up by the rotation of the sorting barrel to enter the brown rice receiving gutter while being fitted in the pot hole, it is necessary to scrape the mixed rice in the sorting stream in the brown rice receiving gutter. It is only necessary to rotate and adjust the adjustment partition plate provided on the side plate on the raising side, and there is no need to rotate the entire brown rice receiving gutter as in the prior art, so it is possible to adjust the grain type and/or moisture content of the grain to be handled. It is extremely easy to adjust so that only brown rice enters the brown rice catcher in response to changes in the supply amount, etc.
It can be made freely and finely, the structure can be significantly simplified, and the weight can be reduced.

Moreover, the present invention allows adjustment so that only brown rice enters the brown rice receiving trough in response to changes in the variety of grain handled and/or moisture content, supply amount, etc., by simply adjusting the rotation of the adjusting partition plate. Of the left and right side plates of the brown rice receiving trough, the position of the side plate on the side opposite to the mixed rice scraping up side in the sorting cylinder is not displaced during adjustment, and the upper end of the side plate on the opposite side is Since it can always be located at a location far from the flow section, it can be adjusted to changes in the type of grain to be handled and/or moisture content, supply amount, etc., without falling into the brown rice receiving trough as in the prior art. The amount of brown rice that passes through will no longer increase, and in other words, the amount of brown rice that falls into the brown rice catcher will not be significantly reduced by adjusting for changes in the variety of grain handled and/or the moisture content supply amount, etc. Therefore, the selection ability can be improved.

When adjusting the rotation of the adjustment partition plate, the gap between the tip of the adjustment partition plate and the inner peripheral surface of the sorting amount is set so that it gradually narrows as the adjustment partition plate rotates downward. In this case, the amount of brown rice flowing into the brown rice receiving gutter from the gap is reduced by the downward rotation of the adjustment partition plate, which reduces the sorting ability. Accordingly, if the gap is set to gradually become wider, the amount of paddy entering the brown rice receiving trough through the gap increases due to the downward rotation of the adjustment partition plate, resulting in a decrease in sorting accuracy.

In contrast, in the present invention, the spindle, which is the center of rotation of the adjusting partition plate, is installed at approximately the center of the sorting cylinder, as described above, and with this configuration, the tip of the adjusting partition plate and the sorting cylinder are connected. The gap size between the inner circumferential surface and the inner circumferential surface remains approximately unchanged as the adjustment partition plate rotates.In other words, the gap size between the tip of the adjustable partition plate and the inner circumferential surface of the sorting cylinder is kept approximately constant. Since the rotation of the adjustment partition plate can be adjusted in the state that the adjustment partition plate is rotated upward, brown rice can be adjusted by adjusting the rotation of the adjustment partition plate, as in the case where the gap becomes narrower or wider as the adjustment partition plate is rotated upward. It is possible to reliably avoid the occurrence of a phenomenon in which the sorting ability or sorting accuracy decreases, and it has the effect of maintaining the sorting ability and sorting accuracy in a high state.

〔Example〕

The present invention will be described below with reference to drawings of embodiments. In the drawings, A indicates a cylindrical sorting cylinder with both ends open horizontally installed in a box-shaped case 6. A plurality of drive wheels 8, 8 are attached to two shafts 7, 7 which are pivotally supported on the
It is placed on the upper surface of the sorting cylinder A, and is rotated at an appropriate speed in the direction of the arrow (B) by the rotation of the shaft 7 in the direction of the arrow (A). A recess is formed.

On one side in the axial direction of the sorting cylinder A in the box-shaped case 6, there is a mixed rice supply tank 9 for supplying mixed rice after hulling into one end of the sorting cylinder A. A receiving gutter 10 for receiving paddy discharged from the other end of the sorting cylinder A is provided on the other side.

Reference numeral B in the figure indicates a top-open brown rice receiving gutter installed in the sorting cylinder A so as to extend in the axial direction of the sorting cylinder A, and the brown rice receiving gutter B has both ends connected to the box-shaped case 6. A spiral conveyor 2 is provided inside the conveyor 2 for transporting the brown rice that has entered the brown rice receiving trough B toward a chute 16 at one end.

Of both side plates Bl and B2 in which brown rice receiving channel B, the second
In the figures and FIG. 3, the side plate B1 on the left side, that is, on the side of raking up mixed rice in the sorting cylinder A, is lowered, while the side plate B2 on the right side, that is, on the side opposite to the side of raking up mixed rice in the sorting cylinder A, is lowered. The upper end B2' of the side plate B2 extends obliquely upward so as to be close to the inner peripheral surface of the sorting cylinder A.

At the upper end of one side plate B1 of the brown rice receiving trough B, and at a position approximately at the center of the sorting cylinder A, both ends are rotatably supported in the box-shaped case 6 via bearings 11 and 12. A spindle 5 is arranged parallel to the brown rice receiving gutter B, and the base end 4 of an adjustment partition plate C extending over its entire length in parallel with the brown rice receiving gutter B is fixed to the spindle 5, so that the rotation of the spindle 5 is controlled. Accordingly, the adjusting partition plate C is constructed so that its upper end 3 can be adjusted and rotated so as to move in the rotational direction of the sorting cylinder A as shown by arrow (d).

The protruding end of the support shaft 50 from the box-shaped case 6 is provided with a lever 14 for rotating the support shaft 5, and the knock 13 provided on the lever 14 is connected to the support attached to the box-type case 6. By engaging with fan-shaped serrations 15 centered on the shaft 5, the lever 14 can be locked at any rotational position.

The mixed rice supplied from the supply tank 9 into the supply section at one end of the sorting cylinder A repeats a flow in which it is scraped up to the height determined by the rotation of the sorting cylinder A in the direction of the arrow (b) and then falls to the bottom. while being sequentially transferred toward the discharge section at the other end of the sorting cylinder A.

During this flow, the brown rice in the mixed rice is caught in the fire 1 on the inner surface of the sorting cylinder A and is lifted up to a higher level than the paddy, and then falls from the fire 1 as shown by the arrow (C). , enter brown rice receiving channel B. The brown rice that has entered the brown rice receiving trough B in this manner is conveyed through the brown rice receiving trough B to one end of the brown rice receiving trough B by the spiral conveyor 2, and is sent out of the machine from the chute 16.

On the other hand, the mixed rice in the sorting barrel A is sorted so that the brown rice therein enters the brown rice receiving trough B as described above, so that the proportion of paddy increases as it is transferred toward the discharge section. , is discharged from the other end via the receiving gutter 10.

Then, the height at which the sorting cylinder A falls after being lifted up while being fitted into the pot hole 1 by rotation is as follows:
Depending on the grain type, moisture content, supply amount, etc., the height will be higher or lower, so if the height when lifting and falling brown rice is higher, adjust the adjustment partition plate C as shown in Figure 3. Adjust the adjustment partition plate C upward as shown by the solid line in Figure 3, and if the height when lifting and falling brown rice becomes lower, rotate the adjustment partition plate C downward as shown by the two-dot chain line in Figure 3. By adjusting, it is possible to selectively introduce a large amount of brown rice into the brown rice receiving trough B, and when making this adjustment, the mixed rice is raked up on the right side of the brown rice receiving trough B, that is, in the sorting cylinder A. The side plate B2 on the opposite side is not displaced, and furthermore, since the support shaft 5, which is the pivot base end of the adjustment partition plate C, is located approximately at the center of the sorting cylinder A, the adjustment partition plate The gap size (S) between the upper end 3 of C and the inner circumferential surface of the sorting cylinder can be maintained substantially constant even when the adjusting partition plate 3 is rotated in any direction.

[Brief explanation of drawings]

The drawings show an embodiment of the present invention, and FIG. 1 is a vertical front view of the rotary grain sorting device, FIG. 2 is a cross-sectional view taken along the line ■-n in FIG. FIG. A... Sorting barrel, 1... Pot hole, B... Brown rice receiving gutter, Bl, B2... Brown rice receiving gutter side plate, C... Adjustment partition plate, 5... ...Spindle. Patent applicant Seirei Kogyo Co., Ltd.

Claims (1)

[Claims] (1) A rotary sorting cylinder with many pot holes formed on its inner circumferential surface is installed horizontally, and a supply section for mixed rice of brown rice and paddy is installed at one end of the rotary sorting cylinder, and at the other end of the rotary sorting cylinder. In a rotary grain sorting device, each of which is equipped with a paddy discharge section, and a brown rice receiving trough with an open top surface extending in the axial direction of the sorting barrel is disposed inside the rotary sorting barrel. A spindle is disposed at the upper end of the left and right side plates of the receiving gutter on the mixed rice scraping side in the sorting cylinder and approximately at the center of the sorting cylinder, and the upper end is attached to the A rotary grain sorting device characterized by being equipped with a base end of an adjustable partition plate that rotates in the direction of rotation of the barrel.