JPS6323989Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to an automatic sorting adjustment device in a paddy coarse sorter.

That is, it is installed below a rotary sorting tube that is rotatably suspended horizontally and has numerous sorting holes large enough to allow rice to leak through the circumferential surface with both ends open, and in the middle of the rotary sorting tube in the direction of its axis of rotation. In the conventional paddy rough sorting machine, which is constructed by installing a finishing paddy gutter closer to the inlet side and a mixing paddy gutter closer to the outlet side from the partition, the paddy in the rotating sorting cylinder is Because the layer thickness changes and the boundary between the thick layer on the inlet side and the thin layer on the outlet side fluctuates toward the inlet side or the outlet side and is not fixed,
There were drawbacks such as straw pieces falling into the finished paddy trough and large amounts of refined paddy falling into the mixed paddy trough, resulting in poor sorting.

The present invention solves this drawback by ensuring that the boundary between the thick layer on the inlet side and the thin layer on the outlet side in the rotary sorting cylinder is always located above the partition even if the supply amount fluctuates. automatically adjusts to
The present invention is intended to provide a rice rough separator that can reliably and well sort refined rice and can be suitably implemented as a rice rough separator with high sorting performance.

Next, the embodiment shown in the drawings will be described.

Fig. 1 shows a cross-sectional view of a rough rice sorter, in which a cylindrical rotary sorting tube A is horizontally suspended on a long support frame B in parallel with the support frame B. Both ends of the inlet side A and the outlet side B are opened, and numerous sorting holes 1 large enough to allow the paddy to leak are formed on the circumferential surface, similar to the conventional structure, and both ends of the rotary sorting tube A are opened. Engagement wheel plates 7 and 8 are fitted and fixed on the outer periphery, respectively, and drive wheels 12 are mounted on both end sides of both rotating shafts 10 and 11, which are parallel to the support frame B and supported on each metal 9.
12, 13, and 13 respectively, and
Engagement wheel plates 7, 8 are drive wheels 12, 13, 12, 13
A motor _M1 fixed on the support frame B is connected to one of the rotary shafts 11 in a transmission manner, and the rotary shafts 11 and 10 are connected to each other. are transmission-connected via a belt pulley 14.

In addition, below the rotary sorting tube A, a finishing paddy trough 3 closer to the inlet side A and a mixing paddy trough 4 closer to the outlet side B are connected to the support frame B and installed in parallel, and the border between the two troughs 3 and 4 is installed in parallel. The partition part 2 is brought close to the lower side of the middle part of the rotary sorting cylinder A in the direction of the rotation axis, and the support frame B
The lower discharge port 17 of the supply hopper 16, which is fixed to the cover frame 15 connected to the top, is installed so that it faces inward on the inlet side (a) of the rotary sorting tube A, and outward on the outlet side (b) of the rotary sorting tube A. A dust exhaust gutter 18 is configured to extend downward from the side.

One end side of the support frame B, which is below the outlet side B of the rotary sorting cylinder A, is pivotally connected to the upper part of one end side of the lower fixed frame C via a hinge 5. A nut 20 is pivotally attached to the other end of the support frame B extending through a support shaft 19, and a screw extends from a forward/reverse motor M which is pivoted to the lower fixed frame C via a bracket 21. The shaft 22 is attached to the nut 2.
0, and the support frame B is screwed together.
The other end side is installed and configured so that it can move up and down to change the inclination angle θ in the axial direction of the rotary sorting cylinder A.

Further, inside the rotary sorting cylinder A, there is a photoelectric sensor 6a that straddles the perpendicular line R-S passing through the partition part 2 and detects a thick layer of paddy X on the entrance side A, and a thin layer Y on the exit side B. A photoelectric sensor 6b is attached to the stay 22 extending from the dust exhaust gutter 18 side, and when the photoelectric sensor 6a detects a thick layer X of paddy and the photoelectric sensor 6b detects a thin layer Y, the forward/reverse motor M stops, and when the photoelectric sensor 6a on the inlet side (a) detects a thick layer The inclination angle θ is made small, and the photoelectric sensor 6b on the exit side
detects the thin layer Y, and the photoelectric sensor 6a on the entrance side A
When the thick layer X is not detected, the motor M is configured to rotate in reverse to adjust the inclination angle θ to a large value.

A bracket 2 extending upward from the fixed frame C
An upper limit switch S1 and a lower limit switch _S2 are installed at the top and bottom of the motor ₃ to stop the forward and reverse rotation motor M when the support frame B comes into contact with the motor M.

Therefore, during work, the rotary sorting cylinder A rotates in the direction of arrow C due to frictional contact with each drive wheel 12, 13 while being tilted in the axial direction.
When paddy mixed with straw pieces etc. is supplied to the supply hopper 16, it is directly supplied from the discharge port 17 into the rotary sorting cylinder A and is sorted, and up to the perpendicular line R-S passing through the partition part 2, there is no inlet. The layer of paddy becomes thicker from the side A, and while being sufficiently sorted, the refined paddy leaks from the sorting hole 1 and falls into the finishing paddy trough 3, and the perpendicular line R-S
The layer of paddy becomes thinner from the point to the outlet side, and the straw pieces also leak out from the sorting hole 1. The mixed paddy mixed with straw pieces falls into the mixing rice trough 4 and passes through the sorting hole 1. The straw pieces and the like that remain without leaking are discharged from the outlet side B and are taken out from the dust exhaust gutter 18.

By the way, as the supply amount increases or decreases, the boundary between the thick layer X and the thin layer Y of paddy changes from the perpendicular line R-S passing through the partition part 2 to the exit side B or the entrance side A, but both photoelectric sensors 6a, 6b constantly detects the thick layer X and thin layer Y of the paddy, and upon this detection, the forward/reverse motor M is operated, and the tilt of the support frame B is changed by the threaded engagement of the screw shaft 22 and the nut 20. Automatically adjust the inclination angle θ in the direction of the rotation axis of A to be small or large so that the boundary between the thick layer X and thin layer Y of paddy coincides with the perpendicular line R-S passing through the partition 2 As a result, fine paddy falling from the thick layer X is prevented from entering the mixed paddy trough 4, and straw pieces from the thin layer Y are prevented from falling into the finishing paddy trough 3.

In this way, the present invention has a rotary sorting tube A that is installed below a rotary sorting tube A that is rotatably suspended horizontally and has numerous sorting holes 1 that are open at both ends and large enough to allow paddy to leak through the circumferential surface. In a paddy rough sorting machine configured by arranging a finishing paddy trough 3 on the inlet side A side and a mixing paddy gutter 4 side by side on the outlet side B side from the partition part 2 provided in the middle of the rotation axis direction, the rotary sorting tube A and One end side of the support frame B equipped with the finishing paddy trough 3 and the mixed paddy trough 4 is pivoted to the fixed frame C side, and the other end side of the support frame B is movable up and down by a motor M to form a rotary sorting cylinder A. The inclination angle θ in the direction of the rotational axis of the rotary sorting tube A can be freely changed and adjusted. A photoelectric sensor 6a for detecting the thin layer Y on the exit side B and a photoelectric sensor 6b for detecting the thin layer Y on the exit side B are provided respectively, and the inclination angle θ of the rotating sorting tube A is changed and adjusted via the motor M based on the detection by the photoelectric sensors 6a and 6b. The boundary between the thick layer X and the thin layer Y is defined by the perpendicular line R-
Since the configuration is such that it can be automatically adjusted to match S, it is possible to detect both the thick layer Based on the detection by the photoelectric sensors 6a and 6b, the inclination angle θ of the rotating sorting tube A is changed and adjusted by the motor M, and the boundary between the thick layer X and the thin layer Y is automatically aligned with the perpendicular line R-S. With this adjustment, it is possible to prevent fine paddy from a thick layer from entering the mixed paddy trough 4 and straw pieces from a thin layer from entering the finishing paddy trough 3, as in the past. It has the feature that it can reliably and well sort refined rice regardless of the amount supplied, and can be suitably used as a coarse grain separator with high sorting performance.

[Brief explanation of the drawing]

The drawings show an embodiment of the present invention, in which Fig. 1 is a sectional view of a paddy coarse sorter, Fig. 2 is a side sectional view of a part of Fig. 1,
FIG. 3 shows a part of FIG. 1... Sorting hole, A... Rotating sorting tube, 2... Partition part, A... Inlet side, 3... Finishing paddy gutter, B... Outlet side, 4... Mixing paddy gutter, B... Support frame , C... fixed frame, 6a, 6b... photoelectric sensor, M... motor, θ... tilt angle, R-S... perpendicular line, X... thick layer, Y... thin layer.

Claims (1)

[Scope of utility model registration request] Below a rotary sorting tube A that is rotatably suspended horizontally with numerous sorting holes 1 of a size that is open at both ends and large enough to allow paddy to leak through the circumferential surface, a part of the rotary sorting tube A is placed midway in the direction of the rotational axis of the rotary sorting tube A. In a paddy coarse sorter configured by arranging a finishing paddy trough 3 on the inlet side A side and a mixing paddy trough 4 side by side on the exit side B side from the partition part 2 provided, the rotary sorting cylinder A, the finishing paddy gutter 3 and the mixed paddy One end side of the support frame B equipped with the gutter 4 is pivoted to the fixed frame C side, and the other end side of the support frame B is made vertically movable by a motor M to tilt the rotary sorting cylinder A in the direction of the rotation axis. A photoelectric sensor 6a is installed in the rotary sorting tube A so that the angle θ can be changed and adjusted, and a photoelectric sensor 6a is installed in the rotating sorting tube A to detect the thick layer A photoelectric sensor 6b is provided to detect the thin layer Y on the exit side B, and the inclination angle θ of the rotary sorting tube A is changed and adjusted via the motor M based on the detection by the photoelectric sensors 6a and 6b. thin layer Y
An automatic sorting adjustment device for a paddy coarse sorter, characterized in that the automatic sorting adjustment device is configured to be able to automatically adjust the boundary between the two lines and the perpendicular line R-S to coincide with the perpendicular line R-S.