JPS62168577A - 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] [Industrial Application Field] The present invention relates to a hulling machine that sorts mixed rice such as paddy and brown rice using a rotating sorting tube that has a large number of potholes on its inner circumferential surface. It can be used in grain sorting equipment.

[Prior Art and Problems to be Solved by the Invention] There is a hulling machine that sorts a mixed rice of paddy and brown rice using a rotating sorting tube that has a large number of potholes on its inner circumferential surface.

In this huller, the paddy that has been sorted by the rotating sorting tube is returned to the hulling section, where it is subjected to the hulling action again. If the grains flow too quickly and many grains are returned to the shelling section, brown rice will also be mixed in with the reduced grains, and this brown rice will once again have a shelling effect in the shelling section. As a result, there was a problem in that the skin of brown rice was rubbed.

Therefore, this invention aims to eliminate this phenomenon of skin rubbing of brown rice.

[Means to solve the problem]

The technical means of the present invention for solving this technical problem consists of a rotary sorting cylinder 11 and a scraping part 1, each of which has a large number of potholes on its inner peripheral surface and whose inclination can be changed and adjusted. A return amount detection sensor 24 that can detect the amount of grain returned from the rotary sorting tube 11 to the return grain return path 23 to the threshing section 1 is installed. sensor 24
This is a grain sorting device characterized in that the degree of inclination of the rotary sorting tube 11 is changed and adjusted based on the detection result of the grain sorting device.

[Operation and effect of the invention]

The amount of grains being returned from the rotary sorting tube 11 to the return grain return path 23 is detected by the return amount detection sensor 24, and when the amount of grain returned is greater than the standard return amount, the controller controls the amount of grain returned to the return grain return path 23. By adjusting the discharge side upward, the amount of grains returned from the rotary sorting tube 11 can be controlled to decrease, thereby preventing excessive grains from being returned to the husking section 1 from the rotary sorting tube 11. In addition, it is possible to prevent the brown rice from being rubbed once in the removing part 1, and to prevent the phenomenon of skin rubbing of the brown rice.

〔Example〕

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

First, the structure of the embodiment will be described. 1 is a shredding section, the saw shredding section 1 includes a paddy tank 2, and a pair of shredding rolls 3.
, 3 etc. Reference numeral 4 denotes a sloughed rice wind sorting path, in which the sloughed rice from the husking section 1 is sorted by the sorting wind generated by the suction fan chamber 5 in front, and the rice husks are passed from the suction fan chamber 5 through the dust exhaust pipe 6 to the machine. The mixed rice of brown rice and paddy is discharged outside and falls into the sliding rice receiving trough 7 below, and the mixed rice that has fallen into the sliding rice receiving trough 7 is sent to the mixed rice grain lifting machine 8 and the mixed rice supply hopper 9. The mixed rice is then conveyed to the starting end of a supply gutter 4 which also serves as a mixed rice receiving gutter.

]-0 is a sorting case, and inside the sorting case 10, there is a supply side end (second The right side in the figure) and the discharge side end (the left side in Figure 2) are rotatably supported by drive rollers 12 and 12. A supply gutter 14 with a supply helix 13 and a rice rack 16 with a finished rice helix 15 are horizontally suspended inside the rotary sorting cylinder 1.

When disposing the supply gutter 14 and the finished rice gutter 16 inside the rotary sorting tube 11, the finished rice gutter 16 is moved from the bottom of the rotary sorting tube 11 to the scooping side that rotates in three directions, and also to the supply gutter. 14 are respectively arranged on the side which rotates downward from three sides of the rotary sorting cylinder 1.

More specifically, the finished rice helix 15, which is the helical transfer part of the finished rice bowl 1G, is transferred from the bottom of the rotary sorting cylinder 11 to the scooping side rotating upward, and also to the supply gutter 14.
The supply helix 13, which is a helical transfer part, is transferred to the rotary sorting tube 1
The rotary sorting tube 1 is placed on the side that rotates from the top to the bottom of the
The mixed rice scooped up by the pot hole 1 is transferred to the supply gutter 14.
It is configured such that the rice falls into the rice bowl and is transferred to the terminal side of the supply gutter 14 by the supply helix 13, and the feed gutter 14 also functions as a mixed rice receiving gutter.

The sorting case 10 in which the rotary sorting tube 11 is housed has a known inclination angle m-section device (
(not shown) is configured to be movable up and down, and the inclination angle of the rotary sorting tube 11 can be changed by moving up and down the supply side and the discharge side of the rotary sorting tube 11.

The discharge side of the finished rice gutter 16 is communicated with the finished rice receiving gutter 19 via the finished rice flow lower tube 17 and the finished rice flow grain plate 18,
While the finished rice falls from the finished rice flow lower tube 17 and the finished rice flow grain plate 18 to the finished rice receiving trough 19, the brown rice that is wind-selected and flows down to the finished rice receiving trough 19 is passed through the finished rice grain lifting machine 20. It is then taken out of the aircraft.

A paddy receiving gutter 21 is provided below the discharge side end of the rotary sorting tube 11, and the paddy that falls into the paddy receiving gutter 21 after sorting is transferred to the paddy lifting machine 2.
At step 2, the paddy returns to the paddy return path 23 where it is fried and returned to the threshing section 1. Reference numeral 24 denotes a return amount detection sensor disposed on the return paddy return path 23. The amount of returned grains is detected based on the pressure of the grains thrown out from the throwing spout 22a. Note that this return amount detection sensor 24 may be arranged at the bottom of the return paddy return path 23, or an optical sensor composed of a light emitting element and a light receiving element may be used to detect the flow amount of grains. may be configured.

Next, the block circuit diagram shown in FIG. 4 will be explained.

The reduction amount detection sensor 24 is connected to the CPU 2 via a comparator 25.
Connected to 6. The return amount reference data stored in the CPU 26 is sent to the comparator 2 via the D/A converter 27.
5, and when the comparator 25 compares and determines that more grains have been returned than the standard return amount, the CPU 26 displays on the display device 28 that the amount of grains that have been returned is more than the standard return amount. is displayed to alert the operator. Alternatively, when the comparator 25 determines that the amount of return is greater than the standard return amount, a command signal from the CPU 26 is output to the forward rotation drive circuit 29, and the motor 31 that adjusts the inclination of the rotating sorting cylinder 11 is driven to rotate in the forward direction. The rotary sorting cylinder 11
The amount of grain returned from the rotary sorting tube 11 is controlled to be reduced by adjusting the rotation of the discharge side of the rotary sorting tube 11 upward.

Further, when the comparator 25 determines that the amount of return has decreased from the minimum standard amount of return stored in the CPU 26, the C
A reverse drive signal is sent from the PU 26 to the reverse drive circuit 3o, and the motor 31 is reversely rotated to rotate the discharge side of the rotary sorting cylinder 11 downward, thereby preventing grains to be sorted from staying in the rotary sorting cylinder 11. This aims to restore the sorting efficiency by reducing the number of particles and prevent the clogging of the grains to be sorted.

Next, the operation of the embodiment will be explained. Paddy is supplied to the paddy tank 2 of the hulling section 1, and each rotating part of the hulling machine is driven.

Then, the paddy supplied from the paddy tank 2 to the husking section 1 is subjected to the husking action, and the husked rice is sorted by the hushu rice wind selection path 4 below.
The rice husks are discharged from the dust exhaust pipe 6 to the outside of the machine. The mixed rice of brown rice and paddy falls into the sliding rice receiving trough 7, and is sent to the mixed rice grain lifting machine 8 through the mixed rice supply hopper 9 and then to the supply trough 14 on the side of the rotary sorting cylinder 11.
It is lifted up and supplied to the starting end side, and is supplied to the supply side end of the rotary sorting tube 11 by the supply helix 13 in the supply receiving trough]-4.

Next, the mixed rice is scooped up by the pot hole of the rotary sorting tube 11 which is rotating clockwise in Fig. 2, and the brown rice falls into the finishing rice gutter ``-6'', and the mixed rice of paddy and some brown rice is ,
The mixed rice falls onto the mixed rice receiving plate 14a of the supply gutter 14 and is sorted.
The unsorted mixed rice that has fallen into the supply 16I114 is fed again into the rotary sorting cylinder 11' from the conveyance end of the supply gutter 14 by the supply helix 13, and is re-sorted. In addition, the finished rice that has fallen into the finishing rice bowl 16 is conveyed by the finishing rice helix 15 to the finishing rice flow lower cylinder 17, passes through the finishing rice grain plate 18, and falls into the finishing rice receiving mi9. The rice is sorted by a sorting wind and taken out of the machine by a finished rice lifting machine 20.

The sorted paddy sent to the discharge side end of the rotary sorting cylinder 11 is
The rice enters the paddy receiving price 21 below, is returned to the paddy tank 2 of the hulling section 1 in the hulling machine 22, and is subjected to the hulling action in the hulling section 1 again.

As described above, the hulling and sorting work is performed, and the amount of grains returned from the hulling machine 22 to the returning paddy return path 23 is detected by the return amount detection sensor 24, and the detected data is When the data is sent to the comparator 25 and it is determined that more money has been returned than the standard return amount, the CPU 26 displays on the display device 28 that more money has been returned than the standard return amount and warns the operator. Along with CPU 2
The command signals 67 and 11 are sent to the normal rotation drive circuit 29, which drives the motor 31 for adjusting the tilt of the rotary sorting tube 1 to rotate in the forward direction, thereby adjusting the rotation of the discharge side of the rotary sorting tube 11 upward. In this way, the amount of grain returned from the rotary sorting cylinder 11 to the shredding section 1 is controlled to decrease.

Further, when the comparator 25 determines that the return amount has decreased from the minimum standard return amount stored in the CPU 26 (=8-), a reverse drive signal is sent from the CPU 26 to the reverse drive circuit 30, and the motor 3]- is rotated in the opposite direction to rotate the discharge side of the rotary sorting tube 1 downward to reduce retention in the rotary sorting tube 11 and restore the sorting efficiency.
This prevents clogging of grains to be sorted.

[Brief explanation of drawings]

The drawings show an embodiment of the present invention; FIG. 1 is a cutaway side view, FIG. 2 is a cutaway rear view, and FIG. 3 is a block circuit diagram. [Explanation of symbols] 1 Dehulling section 2 Paddy tank 3 Dehulling roll 10 Sorting case 11 Rotary sorting tube
12 Drive roller 13 Supply helix 1
4 Supply gutter 15 Finishing rice helix 16 Finishing rice gutter 21 Paddy receiver * 22 Paddy lifting machine 23
Return paddy return path (return grain return path) 24 Return amount detection sensor 25 Comparator 26 CPU 27 D
/A converter 28 Display device 29 Forward rotation drive circuit 30 Reverse rotation drive circuit 31 Motor

Claims (1)

[Scope of Claims] [1] A rotary sorting cylinder 11 and a scraping part 1 having a large number of potholes formed on the inner circumferential surface and whose inclination can be changed and adjusted.
A return amount detection sensor 24 that can detect the amount of grain returned from the rotary sorting tube 11 to the return grain return path 23 to the threshing section 1 is installed. A grain sorting device characterized in that the degree of inclination of the rotary sorting tube 11 is changed and adjusted based on the detection result of the sensor 24.