JPH0667487B2 - Grain supply control device for huller - Google Patents

Description

Description: TECHNICAL FIELD The present invention relates to a grain supply adjusting device for a huller, which is a rotary sorting cylinder having a large number of potholes formed on its inner peripheral surface. -It can be used for a hulling machine that selects mixed rice of brown rice.

[Prior art]

It is a hulling machine that sorts mixed rice of unhulled rice and brown rice with a rotary sorting cylinder that has a large number of potholes on the inner peripheral surface, and the amount of grains to be sorted in the rotary sorting cylinder is detected by a layer thickness detection sensor. Japanese Patent Application Laid-Open No. 60-156559 discloses that the amount of grains to be sorted and detected and supplied to the rotary sorting cylinder is relatedly adjusted.

[Problems to be solved by the invention]

Japanese Patent Application Laid-Open No. 60-156559 discloses that the amount of grains to be sorted in the rotary sorting cylinder is detected by a layer thickness detection sensor, and the amount of grains to be sorted to be supplied to the rotary sorting cylinder is relatedly adjusted. The movement of the layer thickness detection sensor is directly transmitted in relation to the paddy feed control valve of the removing unit to adjust the paddy feed control valve. As a result, the adjustment is frequently repeated, and the hulling and sorting operation is not stable.

Therefore, the present invention provides an interlocking member that interlocks and connects the layer thickness detection sensor on the rotary selection cylinder side and the paddy supply control valve on the stripping section side,
By interposing a spring that acts specially during interlocking movement, when an increase in the grain of the layer thickness detection sensor is detected, the paddy supply control valve is quickly adjusted to the decrease side, and when a decrease in the grain is detected, It is intended to solve the problems of the prior art by delaying the paddy supply control valve a little and adjusting it to the increasing side.

[Means for solving problems]

The configuration of the present invention for solving the above-mentioned problems is as follows. That is, the removing unit 1 for hulling and the mixed rice sorting unit for sorting mixed rice with the rotary sorting cylinder 11 having a large number of potholes on the inner peripheral surface and rotating around the horizontal axis Along with this, a plate-shaped layer thickness detection sensor that moves up and down while contacting the upper surface of the grain to be sorted in the rotary sorting cylinder 11 and detects the grain amount
23 is provided, and the removing unit 1 is provided with a supply control valve 26 for adjusting the grain supply amount, and a vertical movement of the layer thickness detection sensor 23 is interlocked with a member.
Is connected to the supply control valve 26 of the depulling unit 1 via 25,
The interlocking member 25 does not work when the interlocking member 25 moves upward when the grain thickness detection sensor 23 detects an increase in grain, but does not act when the interlocking member 25 detects a grain decrease when interlocking. A grain supply adjusting device of a grain huller is characterized in that a spring 28 that acts during the interlocking movement of (1) is interposed.

[Operation and effect of the invention]

The layer thickness detection sensor 23 in the rotary selection cylinder 11 moves up and down according to the increase / decrease in the amount of grains to be selected, and detects the amount of grains. Then, at the time of upward movement when the grain thickness detection sensor 23 detects an increase in grain, the interlocking member 25 moves relative to adjust the paddy supply control valve 26 of the removing unit 1 to the decreasing side. Since the spring 28 does not act, the paddy supply control valve 26 can be quickly adjusted to the decreasing side, and the unsortable state due to the increase in the grains of the rotary sorting cylinder 11 can be prevented.

Further, when the grain thickness detection sensor 23 detects a decrease in grain, the interlocking member 25 is moved relative to the interlocking member 25 after the spring 28 is activated, and the paddy supply control valve 26 of the removing unit 1 is slightly delayed. Is adjusted to the decreasing side.

Therefore, the layer thickness detection sensor 23 is prevented from frequently detecting the increase or decrease of the grain, and the supply control valve of the removing unit 1 is prevented.
It is possible to perform a smooth hulling and sorting operation while preventing a so-called hunting phenomenon in which the 26 frequently repeats adjustment.

〔Example〕

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

First, the configuration will be described. Reference numeral 1 denotes a removing unit, which is composed of a paddy tank 2, a pair of removing rolls 3, 3, and the like. Reference numeral 4 is a slidable rice wind selection path, which winds down the slidable rice from the removing unit 1 by sorting generated by a suction dust collector 5 in the front, and a light rice husk is sucked from the suction dust collector 5 into a dust pipe. The mixed rice of heavy paddy / brown rice is discharged to the outside of the machine via 6 and is dropped and sorted into the sliding-down rice trough 7 below, and then the mixed rice is supplied to the rotary sorting cylinder 11 by the mixed-rice lifting machine 8. The grain is fried at the starting end side of the gutter 14.

Reference numeral 10 denotes a sorting case. Inside the sorting case 10, a rotation-side sorting cylinder 11 having a large number of potholes on its inner peripheral surface can be rotated around the horizontal axis, and a supply side end portion (right side in FIG. 2) and The end portion on the discharge side (left side in FIG. 2) is rotatably supported by the drive rolls 12, 12. In the rotary selection cylinder 11, a supply gutter 14 having a supply spiral 13 at the bottom and a finished rice spiral 15 at the bottom.
Finished rice gutter 16 having is crossed.

When arranging the supply gutter 14 and the finished rice gutter 16 in the rotary selection tube 11, as shown in FIG. 3, the supply gutter 14 is moved from below the rotary selection tube 11 to the scooping side that rotates upward. In addition, the finished rice gutter 16 is arranged on the side that rotates downward from above the rotary selection tube 11. Then, the mixed rice scooped low in the pot hole of the rotary selection tube 11 is dropped and sorted by the supply gutter 14 and conveyed to the end side of the supply gutter 14 by the supply spiral 13 at the bottom, and the supply gutter 14 is mixed rice. It also functions as a gutter.

The discharge side end of the finished rice gutter 16 is connected to the finished rice gutter 19 through the finished rice drip cylinder 17 and the finished rice drip board 18, and brown rice is the finished rice drip tube 17 and the finished rice drip board. Finished 18 and finished rice gutter 19
The brown rice that has been wind-selected while flowing down to the finished rice receiving trough 19 is taken out of the machine by the finished rice lifting machine 20.

At the discharge side end of the rotary selection cylinder 11, a paddy pumping cylinder 21 is connected. 22 is a paddy-returning gutter, and the upper end of the paddy-returning gutter 22 extends to a position below the pumping portion of the paddy-pumping cylinder 21 of the rotary selection cylinder 11 to remove the paddy pumped by the paddy-pumping cylinder 21. It is reduced by flowing down to the removing unit 1.

Reference numeral 23 denotes a plate-shaped layer thickness detection sensor disposed below the supply gutter 14 at the supply side end in the rotary selection cylinder 11, and the layer thickness detection sensor 23 is a layer axially supported by the selection case 10. Thickness detection axis
It is fixed to 24, and comes into contact with the upper surface of the fluidized bed of the grains to be sorted, and rotates up and down according to the increase or decrease in the amount of grains. An end of the layer thickness detecting shaft 24 on the removing unit 1 side is interlocked with a paddy supply control valve 26 of the removing unit 1 via an interlocking member 25 composed of an arm, a rod and the like. As a result, the number of grains to be sorted in the rotary sorting cylinder 11 increases, and the layer thickness detection sensor 23
Rotates upward. The paddy supply control valve 26 of the removing unit 1 is controlled to be closed via the interlocking member 25, and the supply amount of the selected grains to the rotary selection cylinder 11 is controlled to be reduced.

27 is a support arm attached to the paddy tank 2,
The interlocking rod 25a of the interlocking member 25 is movably supported in the longitudinal direction in the support hole 27a of the support arm 27, and the paddy supply control valve 2 of the support arm 27 in the interlocking rod 25a is supported.
A spring 28 is provided on the 6 side, and the spring of the interlocking rod 25a is also provided.
A bolt 29, which is screw-fitted, is provided on the side of the removing portion 1 of 28, and the spring 28 is supported so as to be adjustable in expansion and contraction. Reference numeral 30 is a delay device including a support arm 27, a spring 28, and a bolt 29.

Then, when the layer thickness detection sensor 23 detects an increase in the grain, the interlocking rod 25a moves quickly to the removing section 1 side without being affected by the spring 28, and the paddy supply control valve 26 is It is quickly closed and adjusted, and when the layer thickness detection sensor 23 detects a decrease in grain, when the interlocking rod 25a moves to the sorting case 10 side, the bolt 29 of the interlocking rod 25a and the support arm 27 are The spring 28 is compressed between the
23 It is configured to delay the downward movement of the paddle a little, and the paddy supply control valve
The opening adjustment of 26 is delayed.

Next, the operation will be described.

When performing the hulling work, the hull is supplied to the hull tank 2 to drive the rotating parts of the hulling machine. The paddy supplied from the paddy tank 2 to the removing unit 1 is padded, and the paddy rice is wind-selected by the paddy-rice selection passage 4 below. Light rice husks are discharged from the dust collector 6 to the outside of the machine, heavy rice mixed with brown rice and brown rice are dropped and sorted by the scraped rice receiving gutter 7, and then the mixed rice is fried by the mixed rice fried machine 8. ,
It is supplied to the start end side of the supply gutter 14 of the rotary selection cylinder 11, then conveyed by the supply spiral 13 at the bottom, and supplied to the supply side end of the rotation selection cylinder 11.

The mixed rice supplied to the rotary selection tube 11 is scooped up by the pot hole rotating clockwise in FIG. 3, and the small brown rice is scooped high and dropped into the finishing rice gutter 16 and is also sorted. Large paddy and some brown rice are scooped low and fall into the supply gutter 14. The mixed rice dropped into the supply gutter 14 is
It is conveyed to the terminal side by the supply spiral 13, supplied into the rotary selection cylinder 11, and re-sorted. The brown rice dropped on the finished rice gutter 16 is conveyed by the finished rice spiral 15 to the finished rice falling barrel 17, and then, through the finished rice grain plate 18, by the sorting wind while falling on the finished rice gutter 19. It is wind-selected and taken out of the machine by the finished rice lifting machine 20.

In addition, the paddy sent to the discharge-side end of the rotary selection tube 11 flows into the adjacent paddy-pumping tubular body 21 and is pumped up, and is returned to the removing section 1 through the paddy-returning trough 22, and the removing section 1 Is hulled again.

As described above, the hulling and sorting work is performed, but the amount of grains to be sorted in the rotary sorting cylinder 11 increases, and when the layer thickness detection sensor 23 rotates upward, through the interlocking member 25. The paddy supply control valve 26 of the removing unit 1 is adjusted to be closed, the amount of slid rice in the removing unit 1 is reduced, and the amount of grains to be sorted in the rotary sorting cylinder 11 is returned to an appropriate state.

Further, when the amount of grains to be sorted in the rotary sorting cylinder 11 decreases and the layer thickness detection sensor 23 moves downward, the interlocking rod 25a also rotates in the rotary sorting cylinder 1.
Although it moves to the 1 side, at that time, it moves between the bolt 29 of the interlocking rod 25 and the support arm 27 with a little delay after compressing the spring 28, and the paddy supply adjusting valve 26 is also opened with a little delay. .

In this way, the spring 28 is not provided on the interlocking rod 25a, and the interlocking member 25 directly and quickly opens and adjusts the paddy supply regulating valve 26 in association with the downward movement of the layer thickness detection sensor 23. If the amount of dropped rice increases quickly, the amount of grains to be sorted in the rotary sorting cylinder 11 also immediately increases, and the layer thickness detection sensor 23 frequently moves up and down, which tends to cause a hunting phenomenon.

However, in this embodiment, the movement of the layer thickness detection sensor 23 to the decrease detection side of the grain amount to be sorted is delayed by the spring 28, and the opening adjustment of the paddy supply adjusting valve 26 is delayed. The hunting phenomenon can be prevented, and the hull sorting work can be smoothly performed while the amount of grains to be sorted in the rotary sorting cylinder 11 is appropriately maintained.

[Brief description of drawings]

The drawings show an embodiment of the present invention. FIG. 1 is a perspective view of an essential part, FIG. 2 is a cut side view, and FIG. 3 is a cut rear view. [Explanation of reference symbols] 1 …… Peeling part 2 …… Rice tank 3 …… Peeling roll 4 …… Scraping rice wind selection path 5 …… Suction dust collector 6 …… Dust collecting tube 7 …… Slide rice Receiving gutter 8 …… Mixed rice fried machine 10 …… Sorting case 11 …… Rotating sorting cylinder 12 …… Drive roll 13 …… Supply helix 14 …… Supply gutter 15 …… Finishing rice spiral 16 …… Finishing rice gutter 17… … Finished rice flow down cylinder 18 …… Finished rice flow grain plate 19 …… Finished rice receiving gutter 20 …… Finished rice lifting machine 21 …… Paddy pumping cylinder 22 …… Paddy return gutter 23 …… Layer thickness detection sensor 24… … Layer thickness detection axis 25 …… Interlocking member 25a …… Interlocking rod 26 …… Paddy supply control valve 27 …… Support arm 27a …… Support hole 28 …… Spring 29 …… Bolt 30 …… Delay device

Claims (1)

[Claims] 1. A removing unit 1 for hulling, and a mixed rice selecting unit for selecting mixed rice with a rotary selecting cylinder 11 having a large number of potholes formed on its inner peripheral surface and rotating around a horizontal axis. , Which are installed side by side, and provided inside the rotary sorting cylinder 11 with a plate-like layer thickness detection sensor 23 that moves up and down while contacting the upper surface of the grain to be sorted to detect the grain amount, A supply control valve 26 for adjusting the grain supply amount is provided, and the vertical movement of the layer thickness detection sensor 23 is connected to the supply control valve 26 of the removing unit 1 through the interlocking member 25, and the interlocking member 25 is connected. In the interlocking movement of the interlocking member 25 at the time of upward movement when the increase in the grain of the layer thickness detection sensor 23 is detected, the interlocking movement of the interlocking member 25 at the time of downward movement when the decrease of the grain is detected. A grain supply adjusting device for a grain huller, which is provided with a spring 28 that acts in this case.