JPH0763640B2 - Grain supply control device for huller - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial field of application] The present invention is a rotary sorting cylinder having a large number of potholes formed on the inner peripheral surface thereof, and is used for a hulling machine for sorting mixed rice of paddy and brown rice. can do.

[Prior Art] Equipped with a removing unit and a mixed rice sorter for selecting mixed rice of paddy / brown rice by rotating a rotary sorting cylinder having a large number of pot holes on the inner peripheral surface around the horizontal axis. There is a paddy sorting machine. Then, a finishing rice gutter for receiving brown rice is arranged in the rotary sorting cylinder, and the grain thickness to be sorted is detected by a layer thickness detecting tool provided on the supply side of the rotary sorting barrel to select the grain to be sorted. When the amount of grains is large, the amount of supply of the paddy supply control valve on the depulping side is reduced to control the amount of supply to the rotary sorting cylinder, and the amount of grains to be sorted in the rotary sorting cylinder is optimized. There are things that are aimed at.

[Problems to be Solved by the Invention] However, in this conventional apparatus, when the layer thickness detection tool in the rotary selection cylinder detects an increase or decrease in the amount of grain to be selected, the detection is performed at the same ratio over the entire detection range. The opening of the paddy supply control valve on the pu side is adjusted. Therefore, when a certain amount or more of grains to be sorted accumulate in the rotary sorting cylinder and the grain layer thickness becomes thick, the sensitivity of adjusting the paddy supply control valve to the closed side becomes sharp and the grain layer thickness becomes abnormal. However, there was a problem in that brown rice was mixed into the finished rice gutter, and the sorting accuracy was lowered.

Therefore, according to the present invention, when the layer thickness detecting device detects that the amount of grains to be sorted in the rotary sorting cylinder has increased more than a predetermined amount, the paddy supply control valve on the removing unit side is increased and closed. By adjusting to the side, the amount of grains to be sorted in the rotary sorting cylinder can be promptly optimized, and the drawbacks of the conventional device can be eliminated.

[Means for solving problems]

The technical means of the present invention for solving such a technical problem is that the removing section 1 and a rotary selecting cylinder 11 having a large number of jar holes formed on the inner peripheral surface thereof and rotating around the horizontal axis are arranged in proximity to each other and removed. In the hulling machine configured to be able to supply the scraped rice after the removal of wind in the Pi part 1 to the rotary sorting cylinder 11, a layer thickness detecting tool 25 for detecting the amount of grains to be sorted in the rotary sorting cylinder 11 and When associating with the paddy supply control valve 32 of the pu section 1 in association with each other, it is connected through standard opening / closing adjusting means for opening / closing normally when detecting the amount of grain to be sorted below a predetermined amount of the layer thickness detecting tool 25. In addition, the grain supply adjusting device of the grain huller is characterized in that the grain supply adjusting device is coupled through the increase / decrease opening / closing means when the amount of grains to be sorted below a predetermined amount is detected. [Advantageous effects of the invention] When the mixed rice is sorted by the rotary sorting cylinder 11, the grain thickness in the rotary sorting cylinder 11 is detected by the layer thickness detection valve 25 to increase or decrease the grain grain to be sorted. Corresponding to, the opening degree of the paddy supply control valve 32 on the removing unit 1 side is adjusted to the closing side or the opening side, and the amount of grains to be sorted into the rotary sorting cylinder 11 is controlled to the decreasing side or the increasing side. The hulling and sorting work is performed while optimizing the amount of grains to be sorted in the rotary sorting cylinder 11.

During the hulling / sorting operation, when the layer thickness detecting tool 25 detects a relatively small amount of grains to be sorted, which is a predetermined amount or less, the layer thickness detecting tool 25
The paddy supply control valve 32 on the side of the removing unit 1 is associated with each other through standard opening / closing control means for opening / closing standardly, and the paddy supply control valve 32 is adjusted by a small increase / decrease ratio. When the thickness detecting tool 25 detects the amount of grains to be sorted that is equal to or more than a predetermined amount, the layer thickness detecting tool 25 and the paddy supply control valve 32 on the side of the decapsulation unit 1 are increased and increased by opening and closing adjusting means for adjusting opening and closing. Associated with each other, the paddy supply control valve 32 is adjusted at a large increase / decrease rate.

Therefore, when the grain layer thickness in the rotary sorting cylinder 11 becomes thicker than the predetermined layer thickness, the paddy supply control valve 32 on the removing unit 1 side is rapidly adjusted in relation to the closing side, and the rotary sorting cylinder 11 is closed. The amount of grains to be supplied to the rotary sorting cylinder 11 is rapidly reduced, and the increased amount of grains to be sorted in the rotary sorting cylinder 11 is rapidly optimized, so that the sorting accuracy can be improved.

〔Example〕

 Embodiments of the present invention shown in the drawings will be described below.

First, the configuration of the embodiment will be described. 1 is a depuffing section, which is a paddy tank 2, a pair of depuffing rolls 3, 3.
Etc. Reference numeral 4 denotes a slide-down rice wind selection path, which is provided with the sorting wind generated by the suction fan chamber 5 in front of the removing unit 1.
The rice shavings from the rice are wind-selected, and the rice husks are discharged from the suction fan chamber 5 to the outside of the machine through the dust pipe 6, and the mixed rice of brown rice and paddy is dropped and sorted into the sliding rice gutter 7 below, The mixed rice dropped into the falling rice receiving trough 7 is conveyed by the mixed rice lifting machine 8 through the mixed rice hopper 9 to the starting end of the supply gutter 14 which also serves as the mixed rice receiving gutter.

Reference numeral 10 denotes a sorting case. Inside the sorting case 10, a rotary sorting cylinder 11 having a large number of jar holes formed on its inner peripheral surface is provided so as to rotate around a horizontal axis. The right side in the figure) and the discharge side end (the left side in FIG. 2) are connected to the drive rollers 12,1.
It is rotatably supported by 2. In this rotary sorting cylinder 11, a supply gutter 14 with a supply spiral 13 and a finished rice spiral 15
There are 16 finished rice gutters in parallel and are placed side by side.

When arranging the supply gutter 14 and the finished rice gutter 16 in the rotary sorting cylinder 11, the supply gutter 14 is, as shown in FIG. In addition, the finished rice gutter 16 is arranged on the side that rotates from the upper side to the lower side of the rotary selection cylinder 11, and the mixed rice scooped up by the pot hole of the rotary selection cylinder 11 falls into the supply gutter 14 and further, With the structure in which it is transferred to the end side of the supply gutter 14 by the supply spiral 13, the supply gutter
14 also functions as a mixed rice gutter. The end of the finished rice gutter 16 on the discharge side is communicated with the finished rice gutter 19 through the finished rice drip cylinder 17 and the finished rice drip board 18, and the brown rice is the finished rice drip pipe 17.
It is selected by wind while falling through the finished rice grain plate 18 and onto the finished rice trough 19. The brown rice that flowed down to the finished rice receiving gutter 19 is a finished rice fried machine.
It is taken out of the aircraft via 20.

A pumping cylinder 21 is connected to the end of the rotary selection cylinder 11 on the discharge side. Reference numeral 22 denotes a paddy reduction gutter, and the upper end of the paddy reduction gutter 22 extends to a position below the pumping portion of the pumping cylinder 21 on the side of the rotary selection cylinder 11, and the paddy pumped up by the pumping cylinder 21 is used. , And has a function of returning to the removing section 1.

The lower part of the front end of the sorting case 10, that is, the lower part on the removing section 1 side is supported by a horizontal shaft 23, and the sorting case 10 and the rotary sorting cylinder 11 are supported.
The rear part is supported rotatably in the vertical direction, and the sorting case 10 can be tilt-adjusted by the tilt adjusting means.

25 is a layer thickness detecting tool. This layer thickness detecting tool 25 is a sorting case.
It is composed of a wide plate attached to the layer thickness detection shaft 26 that is axially supported in the front-rear direction on the top and bottom while contacting the upper surface of the grain to be sorted in the rotary sorting cylinder 11. It is rotated to detect an increase or decrease in the amount of grains to be sorted in the rotary sorting cylinder 11. And, this layer thickness detection tool 25, the layer thickness detection shaft 26,
A detection arm 27, a detection rod 28, a rotating body 30 pivotally supported by a support member 29 integrally supported by the paddy tank 2, an adjusting rod 31, and an adjusting arm 33 attached to a paddy supply adjusting valve 32. It is interlockingly connected to the paddy supply control valve 32 on the removing unit 1 side.

Next, the interlocking relationship between the layer thickness detection tool 25 and the paddy supply control valve 32 will be described in more detail. A long slide hole 27a is formed along the longitudinal direction of the detection arm 27, and one end 28a of the detection rod 28 is movably linked to the long slide hole 27a. The one end 28a of the detection rod 28 and the detection arm 27 are connected to each other. The one end 28a of the detection rod 28 is pressed by the spring 34 so that the one end 28a of the detection rod 28 tends to move to the base side of the detection arm 27. 35
Is a switching arm integrally attached to the base of the detection arm 27 at a predetermined angle, and as shown in FIG. 1, the layer thickness detection tool 25 detects the amount of grains to be selected or less than a predetermined amount. When rotating downward, the switching arm 35 moves to the detection rod 28
The layer thickness detection tool 25
The interlocking relationship between the paddy supply control valve 32 and the paddy supply control valve 32 is in a standard opening / closing control state in which the paddy supply control valve 32 is adjusted up and down in small increments.

Further, when the layer thickness detection tool 25 detects the amount of grain to be selected and is rotated upward, the bending portion 35a at the tip of the switching arm 35 comes into contact with the detection rod 28 from below. By rotating upward, one end 28a of the detection rod 28 moves to the tip side along the slide elongated hole 27a, and the slide elongated hole in the detection arm 27 is moved.
The linking relationship with 27a is switched to the increased opening / closing adjustment state, and the paddy supply adjusting valve 32 is increased / decreased by a large amount to enter the increasing opening / closing adjustment state.

The switching mechanism described above is not limited to this embodiment, and when the layer thickness detecting tool 25 and the paddy supply control valve 32 of the removing unit 1 are interlocked and connected, the layer thickness detecting is performed at an intermediate portion thereof. The configuration is not limited to that of this embodiment as long as the related configuration is such that the paddy supply control valve 32 is expanded and opened / closed when the grain amount to be sorted of the ingredient 25 is detected to be greater than or equal to a predetermined value. Further, although the detection data of the layer thickness detection tool 25 is omitted in the figure, it is input to the comparison control unit, the reference value in the comparison control unit and the detection information of the layer thickness detection tool 25 are compared, and the predetermined reference value is detected. When it exceeds, it may be configured to automatically control so that the expansion adjustment command signal is sent to the motor that controls and controls the paddy supply control valve 32. Also, in this automatic control, the layer thickness detection tool 25 selects Until the intermediate amount of the grain is detected, the paddy supply control valve 32 is controlled and controlled at the standard drive speed, and when a large amount of a predetermined amount or more is detected, the paddy supply control valve 32 may be controlled to be increased or decreased at an increased drive speed. Good.

Next, the operation of the embodiment will be described. When performing the hulling work, the raw hull is supplied to the hull tank 2 to drive the rotating parts of the huller. Then, the paddy supplied from the paddy tank 2 to the removing unit 1 is paddyed, the paddy rice is wind-selected by the paddy-rice selecting passage 4 below, and the paddy husk is discharged from the dust collector 6 to the outside of the machine. It The mixed rice of brown rice and paddy drops into the scraped rice receiving gutter 7, passes through the mixed rice lifting machine 8 and the mixed rice hopper 9, and is supplied to the rotary selection cylinder 11 side.
14 Lifted and supplied to the start end side, further transferred by the supply spiral 13, and supplied to the supply side end of the rotary selection cylinder 11.

Next, the mixed rice is scooped up by the pot hole of the rotary selection cylinder 11 rotating clockwise in FIG. 3, small grains of brown rice are scooped up high, and fall into the finishing rice gutter 16 and the large grain of rice. And some of the brown rice mixed rice is scooped low, and the supply gutter 14
Be dropped and sorted. The unsorted mixed rice that has fallen into the supply gutter 14 is transferred by the supply helix 13 and is again supplied from the transport end portion of the supply gutter 14 into the rotary selection cylinder 11 for re-sorting.

The finished rice dropped on the finished rice gutter 16 is finished rice spiral 15
The finished rice flow grain board
While falling through 18 into the finished rice receiving trough 19, the rice is sorted by the sorting wind and taken out by the finished rice lifting machine 20.

The unhulled rice that has been sent to the discharge side end of the rotary sorting cylinder 11 enters the pumping cylinder 21 and is pumped up, and is returned to the dewaxing unit 1 through the paddy reduction gutter 22 and is again dehulled in the dewaxing unit 1. Be removed.

As described above, the hulling and sorting work is performed. When performing the sorting work with the rotary sorting cylinder 11, the rotary sorting cylinder 11 is used.
While detecting the amount of grains to be sorted in the layer thickness detector 25, the layer thickness detector 26 and the detection arm 2 correspond to the increase or decrease in the amount of grains to be sorted.
Opening of the paddy supply control valve 32 on the side of the removing unit 1 via the detection rod 28, the rotating body 30 pivotally supported by the support member 29 integrally supported by the paddy tank 2, and the adjusting rod 31. The grain selection operation is performed while adjusting the opening / closing degree to increase / decrease the amount of grain to be sorted into the rotary sorting cylinder 11 and appropriately maintain the amount of grain to be sorted in the rotary sorting cylinder 11.

Further, during this related adjustment control, when the layer thickness detection tool 25 detects that the amount of grains to be sorted in the rotary sorting cylinder 11 exceeds a predetermined amount, and the layer thickness detection tool 25 rotates upward, In connection with this, the layer thickness detecting tool 26, the detecting arm 27 and the switching arm 35 rotate clockwise in FIG. 1, and the one end 28a of the detecting rod 28 is springed to the tip side of the elongated slide hole 27a of the detecting arm 27. As the layer thickness detecting device 25 is moved against 34, the upward rotational movement of the layer thickness detection tool 25 is increased and linked to the paddy feed control valve 32 of the removing unit 1 so that the paddy feed control valve 32 can be quickly enlarged. Adjusting to the closed side, removing section 1
The amount of grains supplied to the rotary sorting cylinder 11 is rapidly reduced, and the amount of grains to be sorted in the rotary sorting cylinder 11 is rapidly reduced from the excessive increase. As a result, it is possible to improve the sorting accuracy.

[Brief description of drawings]

The drawings show an embodiment of the present invention. FIG. 1 is a perspective view, FIG. 2 is a cut side view, and FIG. 3 is a cut rear view. Explanation of code 1 …… Stripping part, 2 …… Rice tank 3 …… Stripping roll, 4 …… Sliding rice wind selection path 5 …… Suction fan chamber, 6 …… Dust collecting tube 7 …… Slipped rice Receiving gutter, 8 …… Mixing and grain raising machine 10 …… Sorting case, 11 …… Rotating sorting cylinder 12 …… Drive roller, 13 …… Supply helix 14 …… Supply gutter, 15 …… Finishing rice Helix 16 …… Finishing rice Gutter, 16a …… Finishing rice control valve 17 …… Finishing rice flow down tube, 18 …… Finishing rice flow grain board 19 …… Finishing rice gutter, 20 …… Finishing rice fried machine 23 …… Horizontal axis 25 …… layer Thickness detection tool, 26 …… Layer thickness detection axis 27 …… Detection arm, 27a …… Sliding long hole 28 …… Detection rod, 28a …… One end 29 …… Supporting member, 30 …… Rotating body 31 …… Adjusting rod, 32 …… Paddy supply control valve 33 …… Adjustment arm, 34 …… Spring 35 …… Switching arm, 35a …… Refraction part

Claims (1)

[Claims] 1. A rotary selection cylinder 11 having a large number of potholes formed on the inner surface of the removing section 1 and rotating around a horizontal axis is arranged in proximity to the removing section 1 and a slide after removing wind is selected. In the huller configured to be able to supply the falling rice to the rotary sorting cylinder 11, the layer thickness detecting tool 26 for detecting the amount of grains to be sorted in the rotary sorting cylinder 11 and the paddy supply control valve 32 of the removing unit 1 are provided. Layer thickness detection tool 25
When the amount of grains to be sorted below a predetermined amount is detected, it is combined through standard opening and closing control means that controls opening and closing as standard, and when the amount of grains to be selected above a predetermined amount is detected, it is combined through increasing opening and closing control means. A grain supply adjusting device for a huller.