JPS6140394Y2 - - Google Patents

Description

[Detailed description of the invention] The present invention is a system that separates and sorts grains into brown rice and paddy while the grains flow down the sorting plate by swinging a sorting plate tilted back and forth and left and right. The present invention relates to a partition plate control device for a dynamic sorter.

According to the present invention, the grain sensor that controls the position of the sorting partition plate that separates the grains sorted by the oscillating sorting plate into brown rice or paddy can be moved and adjusted in the grain flow direction of the sorting plate. In addition to making fine adjustment of the sensor easy, the sensor detection position can be brought close to the grain supply port to shorten the time difference, and therefore the grain supply state, that is, the plate surface An object of the present invention is to provide a partition plate control device for an oscillating sorter that can quickly respond to the grain distribution state of the grain distribution and enable sensitive and sensitive partition plate position control.

An embodiment of the present invention will be described in detail below with reference to the drawings.

Fig. 1 is an overall schematic side view of the oscillating sorting machine according to the present invention, and Fig. 2 is a plan view of the same. A swing sorting device equipped with a plurality of sorting plates 3 in multiple stages for sorting grains into brown rice and paddy, 4 a mixed rice tank for storing grains after hulling, and 5 a device for sorting the grains in the tank 4. A supply tank 6 is used to discharge the grains after sorting, and the grains supplied from the tank 4 to each sorting plate 3 via the supply tank 5 are discharged from the grains on their way down. It is configured such that the swinging motion of the device 2 separates brown rice and paddy and takes them out through a discharge gutter 6 to a delivery chute 7.

As shown in FIGS. 3 and 4, the sorting device 2
Each sorting plate 3 is provided in a plurality of stages on the frame 8, and the upper surface of the sorting plate 3 is formed into a resistive rough surface having a plurality of concave depressions. In other words, the angle of inclination β is
The grains distributed from the tank 4 to the front and back inclined upper end sides of these sorting plates 3 flow down to the lower end side of this inclination. During this period, due to the rocking motion, a brown rice layer A is formed on the left rocking upward side of the sorting plate 3.
However, the structure is such that the rice layer B is on the right swinging downward side, and the mixed rice layer C is separated and concentrated in the middle and flows down.

Furthermore, a brown rice partition plate 9 for separating the brown rice layer A and the mixed rice layer C, and a paddy partition plate 10 for separating the mixed rice layer C and the paddy layer B are provided at the downstream end of the sorting plate 3. The brown rice group separated by the plate 9 is sent to the discharge gutter 6 via each downstream guide plate 11, 12a.
In the brown rice gutter 13, there is also a brown rice partition plate 9 and a paddy partition plate 1.
0 and the mixed rice group separated by each downstream guide plate 12b,
14a to the mixed rice gutter 15 of the discharge gutter 6, and the paddy separated by the paddy partition plate 10 is further transferred to the downstream guide plate 14.
It is configured such that the rice is dropped into the paddy gutter 16 of the discharge gutter 6 via the paddy pipe b, and taken out to the delivery chute 7.

Furthermore, the brown rice partition plate 9 is connected to a partition adjustment motor 17 attached to the frame body 8, a screw shaft 18 and an engaging member 1.
The paddy partition plate 10 is connected to the frame body 8 through elongated holes 20 and screw members 21 so as to be movably adjustable.
It is attached and connected for manual adjustment via.

Furthermore, the brown rice falling guide opening 23 formed by the guide plate 11 and the grain guide plate 22 on the lower side of the brown rice side of the brown rice partition plate 9 has an opening/closing shutter 24 that can be freely switched to the brown rice gutter 13 and the mixed rice gutter 15. is provided via a rotating shaft 25, and this switching operation is configured to be performed by a handle 26 or a solenoid 27.

As shown in FIG. 5, a photoelectric boundary sensor 29, which is a grain sensor for detecting grains in the mixed rice layer C, is installed at the upper end of the brown rice partition plate 9 via a fixed mounting plate 28 extending forward. The sensor 2
A sensor receiver 32 is attached to the mounting plate 28 through a long hole 30 and a bolt 31, and the sensor 29 is provided so as to be movable back and forth, that is, in the downstream direction of the grains, so that the mixed rice side of the partition plate 9 is connected to the downstream side. The grains at the top of the sorting plate 3 are irradiated with light, the reflected light is received, and the amount of paddy mixed in the mixed rice is detected from the difference in reflection between the paddy and brown rice. Further, the sensor 29 is attached to the sensor receiver 32 through a long hole 33 and a bolt 34 so as to be movable left and right, so that the sensor 29 can be adjusted laterally. Note that the sensor 2
9 is provided so that it has a certain distance X between it and the downstream end of the sorting plate 3 when installed at the rearmost position, and is close to the grain supply side, and is spaced a distance X from the downstream end of the sorting plate 3. The mounting plate 28 is configured to be moved along the elongated hole 30 of the mounting plate 28 by a distance Y in the front-rear direction.

FIG. 6 shows an automatic control circuit for the partition plate 9, in which the paddy sensor 29 is electrically connected to the partition control circuit 38 via a differential amplifier 37 including a buffer circuit 35 and a reference light amount adjuster 36.
The control circuit 38 includes forward and reverse drive circuits 39 and 40.
When the motor 41 is connected via the sensor 29 and the light amount detected by the sensor 29 increases or decreases depending on the proportion of paddy mixed in, and a difference in light amount occurs between the light amount and the reference light amount set by the regulator 36, The control circuit 38 outputs a forward/reverse signal for the motor 17, and the motor 17 is driven forward/reverse as appropriate to control the position of the partition plate 9 so that the reference light amount of the regulator 36 and the detected light amount of the sensor 29 match. It is configured to do so.

The present embodiment is constructed as described above, and the hulled grains supplied from the mixed rice tank 4 to each sorting plate 3 via the supply tank 5 flow down along the inclination angle β. On the way, it is stirred by the rocking movement of the sorting plate 3 and the rough sorting surface of the sorting plate 3, and due to the difference in specific gravity and friction coefficient, the brown rice layer A is on the shaking side at the upper end of the inclination angle α, and the brown rice layer A is on the shaking side. The rice layer B is concentrated in the rice layer B, and the mixed rice layer C is concentrated in the middle area. This brown rice is separated by the partition plates 9 and 10 provided at the end of the flow and taken out respectively, and the position of the brown rice partition plate 9 is controlled by the sensor 29.

In other words, the light reflection difference between brown rice and paddy in mixed rice increases in proportion to the amount of paddy mixed in, so the amount of paddy contained in the mixed rice at the sensor 29 position is higher than normal and the percentage of paddy mixed in is higher. becomes higher than a certain reference value, the amount of light detected by the sensor 29 also increases, causing a difference in light amount with the reference light amount of the regulator 36, and the control circuit 38 controls the forward rotation drive circuit. The signal that activates 39 causes it to be output. As a result, the motor 17 rotates normally, the partition plate 9 is moved toward the brown rice side, and the partition width T on the brown rice side is automatically adjusted to be small.

On the other hand, contrary to the above, when the paddy mixing rate of this mixed rice is lower than the reference value and the amount of light detected by the sensor 29 is smaller than the reference amount of light of the regulator 36, the control circuit 38 activates the reverse drive circuit 40. An activation signal is output, the partition plate 9 is moved toward the paddy side, and the partition width T on the brown rice side is automatically adjusted to a large value, thereby effectively increasing the amount of brown rice to be taken out.

Moreover, since the sensor 29 that controls the position of the partition plate 9 during such work is movable and adjustable in the front and back, that is, in the direction of grain flow, brown rice and mixed rice are separated from the beginning of the flow of the sorting plate 3 to the end thereof. boundary layer a
Alternatively, the sensor 29 may be placed in the front and rear longitudinal directions of grains that form a boundary layer b between mixed rice and paddy in a quadratic curve.
The sensor 29 can be moved to facilitate fine adjustment when installing the sensor 29, but the sensor 29 can be brought close to the grain supply port to shorten the time difference, and as a result, the time difference between the grain supply ports can be shortened. The position of the partition plate 9 can be controlled quickly and sensitively to changes in the increase and decrease of grains, that is, changes in the distribution of grains on the surface of the plate 3.

As is clear from the above embodiments, in the present invention, the grain sensor 29, which controls the position of the sorting partition plate 9 that separates the grains sorted by the swinging sorting plate 3 into brown rice or paddy, Since the sensor 29 is provided so as to be movable and adjustable in the grain flow direction, it is possible to easily make fine adjustments when installing the sensor 29, and the detection position of the sensor 29 should be brought close to the grain supply port. As a result, the position of the partition plate 9 can be controlled with high sensitivity by quickly and accurately responding to changes in the grain supply state, that is, the grain distribution state on the three sides of the plate. Therefore, it is possible to achieve remarkable effects such as further improvement in sorting accuracy.

[Brief explanation of the drawing]

The drawings show one embodiment of the present invention, and FIG. 1 is an overall side view, FIG. 2 is a plan view of the same, FIG. 3 is a front explanatory view of the main parts, and FIG. 4 is a side view of the main parts. figure,
FIG. 5 is an enlarged plan view of the main parts, and FIG. 6 is a control circuit diagram of the partition plate. 3... Oscillating sorting plate, 9... Sorting partition plate (brown rice partition plate), 29... Grain sensor (boundary sensor).

Claims (1)

[Scope of utility model registration request] A shaker characterized in that a grain sensor for controlling the position of a sorting partition plate that separates grains sorted by a rocking sorter plate into brown rice or paddy is movable and adjustable in the grain flow direction of the sorter plate. Partition plate control device for dynamic sorting machine.