JPS60187374A - Cereal grain selector - 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 grain sorting device using a cylindrical sorting tube that scoops up grains with a groove formed on the inner circumferential surface and sorts them into predetermined grains using a drop. This system aims to equalize the layer thickness of the grains to be sorted supplied from the sorting start end side to the middle part of the sorting cylinder, and to immediately prevent the grains from being separated if the layer thickness exceeds a predetermined value in the sorting middle part of the sorting cylinder. It is an object of the present invention to provide a grain sorting device with high operability, which can improve the amount of recovered brown rice and prevent paddy from being mixed into brown rice by detecting this and operating the device to return to the normal state.

To this end, the present invention has taken the following technical measures. That is, a cylindrical sorting tube (2) having a large number of depressions (1) on its inner peripheral surface is rotatably installed horizontally, and the sorting tube (2)
A conveying device (3) is installed in the inner lower portion for forcibly conveying the grains to be sorted toward the end of sorting when the layer thickness of the grains to be sorted reaches a predetermined layer thickness. The grain sorting device is constructed by installing a detection device (4) for detecting the layer thickness of transported grains during the transport route.

With this configuration, the following technical effects unique to this invention are achieved. In other words, the sorting tube (2)
The mixed grains of brown rice and paddy supplied to the inside are passed through a rotating sorting cylinder (
The grains are scooped up in the recess (1) of 2) and sorted into predetermined grains, but even if more than the predetermined amount of grains is supplied to the starting end of the sorting, or even if they accumulate, the conveying device (3) is immediately forced to Therefore, the grains do not stagnate at the starting end of the sorting tube (2) and the grain feeding operation can be carried out easily. On top of that,
The upper part of the grain layer with high nucleation rate is quickly discharged (sorting end side)
Since the brown rice is conveyed to the ground, it is possible to improve the upward movement of brown rice and increase the recovery rate of brown rice, while preventing contamination with paddy.

Furthermore, if the grain layer thickness still exceeds a predetermined value at the transport speed of the transport device (3), the detection device (4) detects this, so the operator can either stop the grain supply or Furthermore, if the supply of grains to be sorted is automatically stopped or the supply amount is reduced based on this detection result, stable sorting work can be further improved.

Hereinafter, one embodiment of the present invention will be specifically described based on the drawings.

First, to explain its configuration, the hulling machine (5) has a hulling device (6) and a sorting chamber (7) in the upper part, and a winnowing chamber (8) in the lower part. The punch removal device (6) has a pair of left and right rolls rotating in different directions mounted inside a casing with open upper and lower ends. The sorting chamber (7) is equipped with a cylindrical sorting tube (2) which has a number of depressions (1) formed in its inner peripheral surface and is configured to be rotated by a drive wheel body (9). Inside the sorting tube (2) is a finished rice conveying device θ4 consisting of a conveying helix QOQl) rotatably attached to the side frame of the sorting chamber (7) and a receiving gutter θzO■ installed below each helix θ001). ) and a supply conveyance device 0θ are installed in parallel. Then, the conveyance end portion of the two-piece conveyor θ4) is connected to the finished rice recovery device 0O through the two-piece guide tube (not shown).
It communicates with The supply conveyance device θ9 is configured to collect the mixed grains that have been subjected to the sorting action in the sorting tube (2) and feed them again into the sorting tube (2) from the conveyance end, and also serves as a mixed grain collection and conveyance helix. are doing.

In the trench, on the scooping start end side of the sorting cylinder (2) and at a position diagonally below the supply and conveyance device Q, conveyor helices (3) are rotatably installed and arranged in parallel. The α force is the conveying helix (3
) is a conveyance receiving gutter fixedly installed along the lower part on the opposite side to the scooping direction, and is provided over the entire width in the conveyance direction.

The detection device (4) is formed of a rectangular detection plate whose tip is bent in the scooping direction (in the direction of the arrow), and the upper end is rotatable on a stay 08) that projects downward from the conveyance receiving gutter 071. It is removably fixed to a rotation shaft 09 provided in the. Then, the rotation shaft 09) is connected to the supply funnel (
21) It is connected to a control valve (A) that adjusts the thickness of the feed port (A) formed at the lower end of the sorting tube (2). The detection plate is configured to rotate in accordance with the size of the layer thickness, thereby rotating the adjustment plate (c) in the decreasing direction (arrow a side).

Furthermore, the detection device (4) may be configured to detect using optical, ultrasonic, etc., and may also be configured to operate the control valve (a) via an electric power mechanism based on the detection result. You may.

The wind selection room (8) is equipped with a suction device (goods) and a mixed grain collection device (a).
and the finished rice recovery device 0O.

(c) is a plurality of pumping blades provided at predetermined intervals in the circumferential direction at the sorting terminal end of the sorting tube (2), which pumps up uncollected grains and passes them through the chute (a) to the dehulling device. (6) is configured to be fed into the supply funnel CI) installed at the top of the container.

Although not shown, the mixed grains collected by the mixed grain collection device (c) are fed into the supply conveyance device θυ by a thrower, and
The finished rice collected by the finished rice collecting device αO is taken out of the machine using a thrower. (c) is the sorting tube (2)
This is a guide plate that guides grains that overflow from the sorting end to the rear and lower part of the machine.

Next, to explain its function, the grains (paddy) supplied into the supply funnel Q]) are subjected to the agitation action by the deweighing roll of the deweighing device (6), and then sent to the wind sorting chamber (8). The mixed grains fall into the interior and are collected by the mixed grain collection device (c) below, but during this time they are subjected to a suction action by the suction device (c). Then, the wind-selected mixed grains are fried in the supply conveyance device QQ by the thrower, then conveyed through the conveyance helix θ℃ and the receiving gutter 03, and are discharged from the conveyance end into the sorting tube (2). It receives a sorting action while being scooped up one by one in the depression (1).

During this sorting work, the brown rice is collected by the finished rice transport device 04), and the mixed grains are collected by the supply transport device a.
This brown rice (finished rice) falls from the end of the conveyance via the finished rice guide tube to the finished rice recovery device (10) and is then discharged outside the machine by the thrower. On the other hand, the mixed grains are conveyed again together with the supplied mixed grains. The grains are discharged from the terminal end into the sorting tube (2) and re-sorted.Then, the uncollected grains that are not collected are pumped up by the pumping blade (c) and sent into the supply funnel 121) via the chute (a). It is subjected to a deweighing action by a deweighing device (6). During this operation, when a large amount of grain is supplied to the sorting start end of the sorting tube (2) and the layer thickness exceeds a predetermined value, the conveying helix (3) immediately forcibly conveys it toward the sorting end. The supply of grains to the sorting tube (2) will not be hindered due to grain stagnation. Furthermore, since the upper part of the grain flow stack with a high nucleation rate is conveyed, it is possible to prevent paddy from being mixed into the recovered brown rice, and to improve the efficiency of brown rice recovery. 1. If the amount of grain supplied is abnormally large, or if the grain layer forms more than the specified level towards the end of the sorting due to conditions such as variety or agitation rate, the detection device (3)
) detects this and rotates the control valve (a) in the direction of arrow a via the connecting arm to adjust the supply amount according to the layer thickness. Therefore, during the sorting operation, excessive supply of grains into the sorting tube (2) can be prevented, thereby preventing the sorting operation from becoming impossible.

In addition, if the grain exceeds the pumping capacity of the pumping blade (c), it is moved to the sorting tube (2) using the conveying helix (3).
Since it can be discharged outside, the sorting cylinder (2) will not be unable to sort it, and the discharged paddy can be guided to the lower position at the rear of the machine by the guide plate (A), making it easy to collect the grains. I can.

[Brief explanation of the drawing]

The figures show one embodiment of the present invention, in which Fig. 1 is a front cross-sectional view of the huller, Fig. 2 is a side view of the sorting cylinder, and Fig. 3 is a connection diagram of the detection device and the control valve. It is. (1) is a hollow, (2) is a sorting tube, (3) is a conveyor,
(4) indicates a detection device. Patent applicant name: Iseki Agricultural Machinery Co., Ltd. Representative: Masataka Iseki

Claims (1)

[Claims] When a cylindrical sorting tube (2) having a large number of depressions (1) on the inner peripheral surface is rotatably installed horizontally, and the layer thickness of the grains to be sorted exceeds a predetermined value in the lower part of the sorting tube (2). A conveyance device (3) for forcibly conveying the grains to be sorted toward the sorting end side is installed, and a detection device (4) is installed to detect the layer thickness of the conveyed grains during the conveyance path of the conveyance device (3). A grain sorting device is installed.