JPH06320113A - Rotary type grain sorting device - Google Patents

Abstract

PURPOSE:To provide a rotary type grain sorting device corresponding to selection of large and small grains by allowing pickup height of grains in potholes to differ in the directions of normal and reverse rotation of a rotary sorting machine and also providing a control valve of unpolished rice so as to be controlled freely vertically in the device equipped with a rotary sorting cylinder provided with many potholes on the internal circumferential surface. CONSTITUTION:A rotary sorting device 13 is so constituted that a rotary sorting cylinder 16 is provided with many potholes 16a on the internal circumferential surface and freely rotated through driving rollers 15... and supported in a sorting case 14. In the rotary sorting cylinder 16, an unpolished rice receiving gutter 18 is arranged in the backward and forward directions and also a screw 19 of unpolished rice is supported axially in the bottom. The gutter 18 receives the picked up and sorted unpolished rice and is provided with unpolished rice controlling valves 29 in a right and left symmetrical shape so as to be controlled freely vertically. The potholes 16a of the rotary sorting cylinder 16 are so provided that grains go deeply into the potholes 16a and large grains are picked up to proper height in a time of normal rotation wherein the rotary sorting cylinder 16 is rotated clockwise. Further in a time of counterclockwise reverse rotation, grains go shallowly into the potholes 16a and small grains are picked up to proper height.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a rotary grain sorter.

[0002]

2. Description of the Related Art A rotary grain having a brown rice gutter that receives a grain picked up by a pot hole by rotating a rotary selection cylinder having a large number of pot holes on its inner peripheral surface around a horizontal axis. In the sorting device, the pots are shaped to have different heights for picking up the grains by forward or reverse rotation, and by rotating or reversing the rotating sorting cylinder, the brown rice receiving spout that receives the scooped brown rice is placed inside the rotating sorting cylinder. There is a rotary-type grain selection device that is provided in the above-mentioned machine and scoops large grains by forward rotation with a single rotation sorting cylinder and scoops and selects small grains by reverse rotation.

[0003]

In the above-mentioned conventional apparatus, since the grain is sorted by normal rotation or reverse rotation, the brown rice gutter that receives the scooped brown rice is left and right in the rotary sorting cylinder. Although it is arranged in the middle part of the direction, the grain receiving action of the brown rice gutter is configured to correspond to normal rotation or reverse rotation, but the control valve for adjusting the receiving area of the brown rice gutter or the grain layer in the rotary selection cylinder The fact is that the detection device for detecting the thickness has not been considered and has not been put into practical use.

Therefore, the present invention relates to an adjusting device for a control valve of a brown rice gutter provided in a rotary selecting cylinder and a layer thickness detecting device capable of detecting a grain layer thickness in the rotary selecting cylinder. It is intended to put this kind of sorting device into practical use by devising a device that can also handle the above.

[0005]

The present invention has taken the following technical means in order to solve the problems of the prior art. That is, the present invention rotates the rotary selection cylinder 16 having a large number of jar holes on the inner peripheral surface about the horizontal axis,
In the rotary type grain sorting device having the brown rice receiving trough 18 for receiving the grains picked up by the pot hole 16a, the rotary sorting cylinder 16 is configured to be reversible in the normal direction, and the pot hole 16a
Are made to have different grain scooping heights by normal and reverse rotations, and the brown rice gutter 18 is arranged in the middle portion in the left-right direction inside the rotary selection tube 16, and the front end portion thereof has a substantially symmetrical left and right brown rice control valve 2
9, 29 are provided to be adjustable up and down, and layer thickness detection sensors 34, 34 capable of detecting the grain layer thickness are provided below the brown rice gutter 18 of the rotary selection cylinder 16 at substantially left-right symmetrical positions. This is a configuration of a rotary grain selection device.

[0006]

[Function] When sorting large grains, the rotary sorting cylinder 1
When 6 is rotated in the forward direction, a large-sized grain is picked up to an appropriate height by the pot hole that is rotated in the forward direction, and when sorting small grains, the rotation sorting cylinder 16 is rotated in the reverse direction. Small grains are scooped up to an appropriate height by the rotating pot hole, and are respectively received by the brown rice gutters 18 for selection. One of the brown rice control valves 29 provided on the left and right ends of the brown rice gutter 18 is adjusted up and down to improve the sorting efficiency or the sorting accuracy. The layer thickness detection sensor 3 is provided at substantially symmetrical positions on the left and right.
Since the number 4 and the number 34 are provided, the rotation selection cylinder 16 corresponds to the normal rotation or the reverse rotation, and one of the layer thickness detection sensors 34 detects the grain layer thickness.

[0007]

First, the structure of the embodiment shown in FIGS. 1 to 3 will be described. This hulling / sorting machine is a hulling part A for hulling, a downland rice wind selection part B for wind-selecting the downland rice from the hulling part A,
It is composed of a rotary rice sorter type mixed rice sorting unit C for separating and sorting the mixed rice after the wind sorting in the sliding rice wind sorting unit B into paddy / brown rice, and a fried grain transporting unit D for transporting fried grains. There is. Then, the hulling section A is arranged in the upper front part of the machine body, the slidable rice wind selecting section B is arranged in the lower front part of the machine body, and the suction dust collector 1 of the sliding rice wind selecting section B is slid down the rice wind. It is arranged in front of the selection section B, and the mixed-rice fried machine 2 of the fried-conveying section D is arranged on one side of the paddy-sheathed section A and the scraped-rice-style selection section B. C is arranged, and the brown rice frying machine 3 of the fried grain conveying section D is arranged on the side of the mixed rice sorting section C.

The hulling section A is composed of a hull hopper 4, a hulling roll 5,
5. The hulling chamber 6 is equipped with a diffusing plate. Next, the slide-down rice wind selecting section B will be described. The slide-down rice flows down from the upper hulling chamber 6 and the sorting start end of the rear portion of the slide-down rice wind selecting path 8 in the slide-down rice wind selecting box 7 is selected. The scraped-off rice is wind-selected by the scraped-off rice wind selecting passage 8 which is supplied to the side and is installed at a higher position toward the end side. Below the start end side of the slide-down rice wind selection path 8, a slide-down rice gutter 9 for receiving the slide-down rice of the selected paddy / brown rice is provided, and below the end side thereof, the paddy rice is received. A puddle gutter 10 is provided. The sorting wind that has flowed through the slide-down rice wind selection passage 8 from the start end side to the end side is discharged to the outside of the machine through the suction dust collector 1 and the dust discharge tube 11. In addition, the fallen rice that has been dropped and selected on the fallen rice receiving gutter 9 is the fallen rice spiral 12
Is conveyed laterally to one side, flows into the lower part of the mixed rice fried machine 2, fried by the mixed rice fried machine 2, and fried by the rotary sorting device 13.

Next, the rotation selection device 13 will be described. The rotation sorting device 13 is located behind the hulling section A,
The rotary sorting cylinder 16 supported by the drive rollers 15, 15, ... In the sorting case 14 is rotated around the horizontal axis. The rotary sorting cylinder 16 is cylindrical and has a rear end side as a sorting start end side. A large number of pot holes into which grains can be inserted are formed on the peripheral surface, and the inner peripheral surface is divided into a plurality of axial partition plates at the end of the selection to form the pumping chambers 17, 17, ... Is forming.

Inside the rotary sorting cylinder 16, brown rice gutters 18 for receiving the scooped and sorted brown rice are arranged along the front and rear direction, and the front and rear ends of the brown rice gutter 18 are supported by the sorting case 14. The brown rice spiral 19 is mounted on the bottom. Below the brown rice gutter 18, a supply gutter 20 is arranged along the front-rear direction, both front and rear ends are supported by the sorting case 14, and a supply spiral 21 is mounted on the bottom and slid down to the transport start end side. Rice is fried and fed by the mixed-rice fried machine 2, and the slid-down rice thus fed is conveyed to the conveying end side and supplied to the sorting start end side of the rotary sorting cylinder 16. The terminal end side of the brown rice receiving gutter 18 is communicated with a brown rice discharging passage 22, and the brown rice dropped and sorted into the brown rice receiving passage 18 is sent to the brown rice collecting gutter 24 through the brown rice discharging passage 22 and the brown rice passage 23. It is configured to be taken out of the brown rice fried machine 3. Further, the sorted paddy that has flowed to the sorting end portion of the rotary sorting tube 16 flows into the pumping chambers 17, 17, ..., Is pumped up, flows into the paddy reduction gutter 25, passes through the paddy reduction gutter 25, and then the paddy. The configuration is such that it is returned to the hopper 4.

Next, the transmission device of the rotation selection device 13 will be described. A power take-off shaft (not shown) is projected rearward from the gear case side of the paddy hull A, and the shaft end of the brown rice spiral 19 of the brown rice receiving trough 18 and the supply spiral 2 of the supply trough 20.
Each of the shaft ends of No. 1 is projected forward, the power take-off shaft (not shown) and the shaft ends of the brown rice spiral 19 are aligned, and both members are connected by a coupling (not shown). The hulling section A is configured to transmit power from the side to the rotary selection tube 16 side, and is attached to the shaft end of the supply helix 21 (not shown) attached to the shaft end of the brown rice spiral 19. A transmission belt (not shown) is wound around the provided pulley (not shown) to transmit power to the power parts of the brown rice receiving gutter 18 and the supply gutter 20. Further, drive shafts 26, 26 to which drive rollers 15, 15, ... Are attached are supported below the rotary selection cylinder 16 along the front-rear direction, and a forward / reverse rotatable model for driving the rotation selection cylinder 16 is supported. -From a motor (not shown), attached to the end of the drive shaft 26, 26-
Power of forward rotation or reverse rotation is transmitted to the drive shafts 26, 26 by the belt 27 and the transmission belt 28, and the rotation selection cylinder 1
6 has a structure in which it rotates in the normal and reverse directions.

As described above, the rotary selection cylinder 16 is configured to be reversible in the normal and reverse directions, and the pot hole 16a in the rotation selection cylinder 16 is provided.
For example, as shown in FIG. 1, in the case of clockwise rotation that rotates clockwise, the grain enters deep into the pot hole and the large grain is scooped up to a high proper position, and counterclockwise. In the case of reverse rotation, the grain is shallowly inserted into the pot hole 16a, and the small grain is scooped up to an appropriate height. Brown rice receiving gutter 18 and supply gutter 20 in the rotary sorting cylinder 16.
When arranging the rice grains up and down, the brown rice gutter 18 is placed in the upper position, the brown rice gutter 18 is arranged in the middle portion in the left-right direction, and the left and right symmetrically-polished brown rice control valves 29, 29 are vertically adjusted. It is freely provided and can be vertically adjusted by a single brown rice adjusting lever 30 via rods 31, 31. In addition,
Reference numeral 32 is a locking groove for locking the brown rice adjusting lever 30 at the adjusting position. Further, the supply gutter 20 is arranged in parallel below the brown rice receiving gutter 18, and receiving plates 20a, 20a are provided symmetrically in the left-right direction of the supply gutter 20.

A shaft 33a of a support bar 33 extending in the left-right direction is provided on the side of the selection start end of the rotary selection cylinder 16 in the supply trough 20.
And the tip side of the support rod 33 is extended obliquely forward and downward, and the layer thickness detection sensors 34, 34 are attached to this extension.
When the grain layer thickness in the rotary selection cylinder 16 becomes thicker, the layer thickness detection sensors 34, 34 are pushed up by the grain, and the tip side rotates upward with the shaft portion 33a of the support rod 33 as a fulcrum. . A rotating arm 35 is attached to the shaft portion 33a of the support rod 33, and the rotating arm 35 is connected to the rod 3
6, through the arm 36a, the shaft 37, the arm 38, and the rod 39, is interlockingly connected to the paddy feed control valve 40 of the paddy section A, and when the grain layer thickness in the rotary sorting cylinder 16 becomes thick, paddy feed The control valve 40 is adjusted in relation to the closing side so that the grains in the rotary sorting cylinder 16 are reduced and adjusted to an appropriate amount.

Next, a modified example of the layer thickness detecting sensor 34 will be described with reference to FIG. As shown in FIG. 4A, the layer thickness detection sensor 34 is made hollow and thick. Then, it is possible to prevent the layer thickness detection sensor 34 from digging into the grain, and the detection accuracy is improved. Further, as shown in (2),
The layer thickness detection sensor 34 is used as a plate body, and on the selection start end side and the left and right side portions of the plate body, inclined surface portions 34a whose outer peripheral sides are bent obliquely upward are formed, and the selection end side is formed with a cutout portion 34a. Then, the layer thickness detection sensor 34 is less likely to go into the grain, and the detection accuracy can be improved.

Referring to FIG. Drive shafts 26, 26 to which drive rollers 15, 15, ... Are attached are supported below the rotary selection cylinder 16 along the front-rear direction, and a motor for driving the rotary selection cylinder 16 capable of forward and reverse rotation. The pulley 42 of 41 and the pulleys 27, 27 attached to the ends of the drive shafts 26, 26 are wound around the transmission belt 28 to rotate the motor 41 in the forward or reverse direction, thereby selecting the rotation. The cylinder 16 is configured to rotate normally or reversely. And the mode
The pulley 42 on the printer 41 side is composed of a pair of left and right split pulleys for expanding or contracting, and a tension pulley 43.
The rotation speed is increased or decreased by moving the. Left and right brown rice control valves 29 in the brown rice gutter 18,
At the position above 29, scattering sensors 44, 44 capable of detecting the state of grain scattering to the brown rice gutter 18 are attached at appropriate positions from the sorting start end side to the sorting end side, and the layer thickness detection sensor 34
A layer thickness potentiometer 45 is attached to the shaft portion 33a of the support rod 33 to which the above-mentioned is attached so that the grain layer thickness in the rotary selection cylinder 16 can be electrically detected.

Scattering sensor 44, layer thickness potentiometer 4
5 and the rotation direction detection sensor 47 for detecting the rotation direction of the rotation selection cylinder 16 are connected to the CPU including the control unit, the calculation unit and the register unit and the memory unit of the program memory and the calculation memory via the input interface. It is connected to the configured arithmetic control unit 48, and also forwards or reverse rotation command signals to the motor 41 via the output interface from the arithmetic control unit 48 and the tension pulley 43. In this configuration, a rotation speed increasing / decreasing control command signal is output to a rotation speed adjusting motor 49 that moves and adjusts.

Next, the control contents of the arithmetic control unit 48 will be described. In the case where the rotation direction detection sensor 47 detects left rotation for small grain selection, the layer thickness potentiometer 45 detects a layer of a predetermined amount or more, and the scattering sensor 44 detects scattering of grains,
A control command signal for decreasing the rotation speed is output from the arithmetic control unit 48 to the rotation speed adjusting motor 49, and the rotation speed is adjusted to the decreasing side. Therefore, the adjustment to the decreasing side is stopped. In the case where the rotation direction detection sensor 47 detects left rotation for small grain selection, the layer thickness potentiometer 45 detects a grain layer thickness below a predetermined value, and the scattering sensor 44 detects no scattering of grains. A control command signal for increasing the rotation speed is output from the arithmetic and control unit 48 to the rotation speed adjusting motor 49, the rotation speed of the rotation selection cylinder 16 is adjusted to the increasing side, and the scattering sensor 44 detects the scattering of the grain. Then, a predetermined number of rotations (for example, 1
The control is stopped after the decrease command signal of (rotation) is output. When the rotation direction detection sensor 47 detects a right rotation for large grain selection, the layer thickness potentiometer 45 detects a grain layer thickness of a predetermined value or more, and the scattering sensor 44 detects no scattering of grains. A control command signal for increasing the rotation speed is output from the arithmetic and control unit 48 to the rotation speed adjusting motor 49, and the rotation selecting cylinder 16
When the scattering sensor 44 detects the scattering of the grains by adjusting the rotation speed of No. 1 to the increasing side, then the predetermined rotation speed (for example,
The control is performed after the decrease command signal of one revolution) is output.

The following control may be performed instead of the above control. When the layer thickness potentiometer 45 detects large, medium, and small layer thicknesses, and the scattering sensor 44 detects scattering of grains, it is determined that the sorting is substantially appropriate, and the rotation speed is adjusted from the arithmetic control unit 48. No control command signal is output to the motor 49, and the rotation selection cylinder 16 maintains the same rotation speed. When the layer thickness potentiometer 45 detects large, medium, and small layer thicknesses, but the scattering sensor 44 does not detect the scattering of grains, the operation control unit 48 rotates the rotation speed increase command signal. It is output to the number adjustment motor 49, and the rotation speed of the rotary selection tube 16 is increased until the scattering sensor 44 detects the scattering of the grain.

If the scattering sensor 44 does not detect the scattering of the grains even though the rotation speed increase command signal is output a predetermined number of times or a predetermined time, the display device 5
0 indicates that the pit hole of the rotary sorting cylinder is not suitable. Although illustration is omitted, a grain shape sensor (not shown) capable of detecting the grain size of grain is provided in the grain hopper 4 of the grain hull A or in the grain passage, and the grain of the grain sensor Based on the detection result of the size, the arithmetic control unit 48 outputs a control command signal for switching the rotation direction to the motor 41 so that the rotation direction of the motor 41 is changed to the side corresponding to the size of the grain shape. The rotation selection cylinder 16 may be automatically switched and rotated.

Next, the operation of the embodiment will be described. When performing a hull sorting operation with a hull sorting machine, the rotating parts of the machine body are driven to feed the hull to the hull hopper 4 and open the hull supply control valve 40 of the hull hull portion A, so that the hull is hulled. The hulling rolls 5 and 5 supplied to the rolls 5 and 5 and rotating in opposite directions to each other.
The hulled rice that has been hulled in and dropped by a diffusing plate (not shown) falls into the downhill rice wind selection passage 8 and is sorted by the sorting air flowing through the downfall rice wind passage 8. . Then, the light rice husks flow to the end side of the scraped rice wind selection path 8 and are discharged to the outside of the machine through the suction fan 1 and the dust discharge tube 11. Also, the relatively light rice husks fall to the rice burrs 10. Sorted, and the heavy mixed paddy / brown rice is dropped and sorted on the scraped rice receiving trough 9. Next, the scraped rice helix 12 is conveyed laterally to one side, fried by the mixed rice fried machine 2, passed through the supply gutter 20 and supplied to the sorting start end side of the rotary sorting cylinder 16.

The mixed rice fed to the sorting start end side of the rotary sorting cylinder 16 is scooped up by the pot hole of the rotary sorting cylinder 16 in the process of sequentially flowing from the sorting start end side to the sorting end side, and has a short grain length. The brown rice is scooped high and drops to the brown rice receiving gutter 18, and the paddy having a long grain length and a part of the mixed rice of brown rice is scooped low and drops to the supply gutter 20. In this way, the brown rice sorted by the brown rice receiving gutter 18 is conveyed to the front end which is the end side of the brown rice spiral 19, and the brown rice discharging path 23,
It flows down to the brown rice collecting trough 24 through the brown rice flow path 23, and is taken out of the machine by the brown rice lifting machine 3.

The mixed rice received by the supply gutter 20 is
It is conveyed to the rear side which is the selection start end side of the rotary selection tube 16 by the supply spiral 21, is supplied again to the selection start end side of the rotation selection tube 16, and is re-selected. Grains mainly composed of the sorted paddy that has flowed to the sorting end side of the rotary sorting cylinder 16 are collected in the pumping chamber 17
Is flown into and is pumped up, passes through the paddy reduction gutter 25, is returned to the paddy hull portion A, and is padded again.

The hulling and sorting are performed in this way, but before the work is started, the operator judges the size of the grain shape of the grain,
When the grain shape is large, the rotary sorting cylinder 16 is normally rotated to allow the large grain to enter deeply into the pot hole, and to scoop up to an appropriate height for sorting. If it is a grain, the rotary sorting cylinder 16 is rotated in the reverse direction for sorting. In such a sorting process, the brown rice adjusting lever 30 is operated to adjust the receiving area of the brown rice gutter 18 to be wide or narrow, and the sorting operation is performed while adjusting the sorting efficiency and the sorting accuracy.

Further, during the sorting operation, even during the normal rotation or the reverse rotation of the rotary sorting cylinder 16, one of the layer thickness detecting sensors 34 provided on the sorting start end side of the rotary sorting cylinder 16 is used to detect the grain layer. The thickness is detected, and the detection result is fed back to the paddy supply control valve 40 of the paddy section A through the rotary arm 35, the rod 36, the arm 36a, the shaft 37, the arm 38, and the rod 39. When the grain layer thickness is thick, the paddy supply control valve 40 of the grain hull portion A is adjusted to the decreasing side, and the grain amount to the rotary sorting cylinder 16 is reduced and optimized.

[0025]

EFFECTS OF THE INVENTION Since the present invention is configured as described above, the rotary sorting cylinder 16 is switched to the normal rotation or the reverse rotation to sort large grains or small grains. Although it is possible to improve the adaptability of the rotary selection cylinder 16, the brown rice control gutter 18 for receiving the selection grain has brown rice control valves 29, 29 and a layer thickness detection sensor 34 on either side. 34 is provided, the receiving area can be adjusted and the grain layer thickness can be detected in either forward or reverse rotation, and the efficiency and accuracy of the sorting operation can be improved.

[Brief description of drawings]

[Figure 1] Rear view of cutting

FIG. 2 is a perspective view

FIG. 3 is a cut side view.

FIG. 4 is a perspective view and a cut side view.

[Figure 5] Cutting front view

FIG. 6 is a block diagram.

[Explanation of symbols]

 A Rice hulling section B Sliding rice wind sorting section C Mixed rice sorting section D Lifting grain transport section 1 Suction dust remover 2 Mixed rice grain lifting machine 3 Brown rice grain lifting machine 4 Paddy hopper 5 Paddy roll 6 Paddying room 7 Slider Falling rice selection box 8 Sliding rice wind selection route 9 Sliding rice receiving gutter 10 Pile receiving gutter 11 Dust collecting cylinder 12 Sliding rice spiral 13 Rotating sorting device 14 Sorting case 15 Drive roller 16 Rotating sorting cylinder 16a Urn hole 17 Pumping room 18 Brown rice gutter 19 Brown rice spiral 20 Supply gutter 21 Supply helix 22 Brown rice discharge passage 23 Brown rice passage 24 Brown rice recovery gutter 25 Paddy reduction gutter 26 Drive shaft 27 Pulley 28 Transmission belt 29 Brown rice control valve 30 Brown rice adjusting lever 31 Stop groove 33 Support rod 34 Layer thickness detection sensor 35 Rotating arm 36 Rod 36a Arm 37 Shaft 38 Arm 39 Rod 40 Paddy supply control valve 41 Motor 42 Pulley 43 Tension Pulley 44 Scattering sensor 45 Layer thickness potentiometer 46 Rotation speed detection sensor 47 Rotation direction detection sensor 48 Arithmetic control unit 49 Rotation speed adjustment motor 50 Display device

Claims (1)

[Claims] 1. A rotation having a brown rice gutter 18 for receiving a grain picked up by a pot hole 16a by rotating a rotary selection cylinder 16 having a large number of pot holes on its inner peripheral surface around a horizontal axis. In this type of grain sorting apparatus, the rotary sorting cylinder 16 is configured to be reversible in the normal direction, and the pot hole 16a is formed in a shape having different grain scooping heights by the forward and reverse rotations, and the brown rice gutter 18 is rotated in the rotary sorting cylinder. It is arranged in the middle part in the left-right direction in 16 and is provided with substantially symmetrical symmetrical brown rice control valves 29, 29 at the tip end thereof, and the left and right is substantially below the brown rice gutter 18 of the rotary selection cylinder 16. A rotary-type grain sorting device, which is provided with layer thickness detection sensors 34, 34 capable of detecting grain layer thickness at symmetrical positions.