JPH0159035B2 - - Google Patents

Description

Detailed Description of the Invention [Industrial Application Field] The present invention relates to a rotary sorting device having a rotary sorting tube that sorts grains while rotating around a horizontal axis, and particularly relates to a rotary sorting device having a rotary sorting tube that sorts grains while rotating around a horizontal axis. This allows for easy attachment and detachment.

[Prior Art] A typical rotary sorting device has a rotary sorting tube rotatably installed around a horizontal axis in a box-shaped sorting case, and inside the rotary sorting tube, bolts and nuts are attached to both ends of the rotary sorting tube to the sorting case. This structure includes a grain receiving trough that is fixed to the grain tray and receives the sorted grains, and a conveying helix that is supported by a bearing member. With this configuration, when cleaning the recesses of the rotary sorting tube after the sorting operation, or during the sorting operation, foreign objects such as stones may get mixed into the grains, causing the recesses to become deformed.
When the rotary sorting tube must be removed from the machine, the grain receiving trough and conveying helix must be removed each time, which requires a great deal of time and effort to replace or inspect the rotary sorting tube. Was. In addition, when assembling the rotary sorting tube to the machine after completing the specified inspection and correction work, place the grain receiving trough and conveying helix inside the rotary sorting tube in advance, and then attach the rotary sorting tube to the sorting case. After that, the grain receiving trough and the conveying helix must be assembled to the sorting case inside the narrow sorting case, which requires a lot of assembly time and is one of the causes of reduced work efficiency.

In order to solve this inconvenience, Japanese Patent Laid-Open No. 60-222181 discloses a conventional technique for attaching and detaching a rotary sorting cylinder.

[Problems to be Solved by the Invention] In this prior art, when the rotating sorting tube is removed from the sorting case, the rotating sorting tube, the grain receiving trough and the conveying means inserted in the rotating sorting tube are also removed together. It is the composition. Therefore, the weight of the parts to be removed from the sorting case becomes heavy, and since the grain receiving trough and conveying means are inserted into the rotating sorting cylinder,
When cleaning the rotary sorting cylinder, there was a problem in that the grain receiving trough and the conveying means were an obstacle.

Therefore, when removing the rotary sorting tube from the sorting case, the present invention provides a special arrangement between the rotary sorting tube, the grain receiving gutter inserted in the rotary sorting tube, the conveying means, and the sorting case. This is an attempt to solve the drawbacks of the prior art by removing only the rotary sorting tube while leaving the grain receiving trough and conveying means inserted in the rotary sorting tube in the sorting case.

[Means for Solving the Problems] The technical means of the present invention for solving the above-mentioned technical problem is to rotate mixed grains in a plurality of depressions 1a, 1b, . A finished rice conveying device 12, which is composed of a conveying helix and a receiving gutter and receives and conveys the grains to be sorted, is disposed inside the rotary sorting cylinder 1 that sorts while pumping up, and one end of the finished rice conveying device 12 is provided. is supported by the side wall at one end of the sorting case 7 that covers the rotating sorting tube 1, and the other side of the finished rice conveying device 12 has a predetermined relationship between the rotating sorting tube 1 and the finished rice conveying device 12. A state in which the support frame 5 for holding the position is attached, and the support frame 5 is supported by the receiving frame 3 and protrudes toward the outer circumferential side beyond the outer diameter of the rotary sorting tube 1 when viewed from the axial direction of the rotary sorting tube 1. and the other end side of the sorting case 7 that covers the rotary sorting tube 1, which is the pull-out side of the rotary sorting tube 1. The structure of the rotary sorting device is characterized in that a cover 17 having a larger diameter than the outer diameter of the rotary sorting tube 1 is detachably attached to the rotary sorting tube 1.

[Operations and effects of the invention] When removing the rotary sorting tube 1 during cleaning work of the rotary sorting tube 1, the cover 17 is removed from the end of the sorting case 7, and the mounting state of the support frame 5 and the receiving frame 3 is changed. When the supporting frame 5 is moved from the inner circumferential side of the rotary sorting tube 1 to the inner circumferential side, the finished rice conveying device 12 installed in the rotary sorting tube 1 is moved to one side of the sorting case 7. By pulling out the rotary sorting tube 1 to the other side, only the rotary sorting tube 1 can be removed while the finished rice conveying device 12 remains attached to the machine body. Compared to conventional devices that remove the grain receiving trough that receives the sorted grains located inside the sorting tube 1, the parts to be removed are lighter and the removal work is easier. Since it is removed, there is nothing inside that will get in the way when cleaning the rotary sorting tube 1, and the cleaning can be done easily.

[Example] Hereinafter, an example of the present invention will be specifically described based on the drawings.

Reference numeral 1 denotes a rotary sorting tube that rotates around a horizontal axis and sorts the mixed grains while drawing them up with a large number of depressions 1a, 1b, ... formed on the inner circumferential surface. A sorting case that covers one end of the sorted grain conveying device 2 and the rotary sorting cylinder 1 is provided with a sorted grain conveying device 2 that is configured with a gutter and receives the sorted grains and conveys the grains. A supporting frame 5 is attached to the other end of the sorted grain conveying device 2, and the intermediate portion of the supporting frame 5 is rotatable in the front and rear directions with a rotation shaft 4. The supporting frame 5 and receiving frame 3 form a sorting grain conveying device 2.
Switching between a state in which both ends of the sorted grain conveying device 2 are supported by the sorting case 7 and the receiving frame 3, and a state in which the supporting frame 5 is retracted to the inner circumference side of the rotary sorting cylinder 1, The sorting grain conveying device 2 is moved to the sorting case 7.
It is configured so that it can be changed to a state in which it is supported in a cantilevered manner on one side wall.

The hulling machine 6 has a hulling chamber (not shown) and a sorting case 7 arranged in the upper part, and a winnowing chamber 8 in the lower part. After the received fallen rice is wind-selected in a wind-selecting chamber 8, it is supplied to a rotary sorting tube 1 in a sorting case 7, where it is sorted into predetermined sorted grains of paddy and brown rice.

Reference numeral 1 denotes a rotary sorting tube disposed inside the sorting case 7. The rotary sorting tube 1 has a large number of indentations 1a, 1a, . It is supported by the rotating bodies 9, 9, . . . and is rotated in the direction of arrow A by the friction of these bodies. A flange portion 1b having an appropriate length is formed at the end of the rotary sorting cylinder 1 on the opposite side from the removing chamber (not shown) so as to be directed toward the center of the cylinder.

The sorting grain conveying device 2 is composed of a conveying helix and a receiving gutter, and rotates grains supplied from a grain supply chamber 10 provided between a sorting case 7 and a threshing chamber (not shown). One side of sorting tube 1 (right side in Figure 1)
A supply conveyance device 11 that conveys the grains to the feeder and supplies the grains from the conveyance end to the sorting start side of the rotary sorting cylinder 1, a finished rice conveyor 12 that conveys the finished rice (brown rice), and a mixed grain of the finished rice and the unhulled rice. Mixed rice conveying device 1
It is composed of 3. The conveying spirals 11a, 12a, and 13a have their ends facing the supply chamber 10 supported by bearings on the side walls of the sorting case 7, and their other ends facing the support frame. Attach the fixture 14 to the machine holder frame 3 via the
(for example, butterfly bolts, bolts, etc.). One end of the receiving troughs 11b, 12b, and 13b is supported by one side wall of the sorting case 7, and the other end of the receiving troughs 11b, 12b, and 13b is attached to the support frame 5 by a fixture 15.
It is removably attached with bolts and nuts (for example).

In this embodiment, the support frame 5 is formed by bending a flat plate into an L-shape, and is divided from the middle to form two upper and lower parts, and this divided part is connected with a hinge having a rotation shaft 4. are doing. The distal end of the support frame 5 is configured to be able to rotate toward the rear of the aircraft (in the direction shown in the figure) around the core of the rotation shaft 4. It is configured to be located within the inner peripheral opening 1c of the flange portion 1b of the rotary sorting cylinder 1. 16 is a transmission belt, and this transmission belt 16 is connected to each conveyor helix 11.
The transmission belt 16 is wound around pulleys attached to the shaft ends of the transmission belts 12a, 12a, and 13a, and is tensioned via a tensioner (not shown). 17
is a rear cover detachably provided at the rear end of the sorting case 7, and the rear cover 17 is configured to have a larger diameter than the outer diameter of the rotary sorting cylinder 1.

Next, its effect will be explained. The rice that has undergone the dehulling process in the dehulling chamber (not shown) is transferred to the wind selection chamber 8.
After wind-selecting and removing the paddy grain, the grain supply room 1
sent into 0. Next, the feed conveyance device 11 inside the rotary sorting tube 1 conveys the material to one side and supplies it to the sorting start end inside the rotary sorting tube 1. Then, this mixed rice of paddy and brown rice is pumped up in the rotary sorting cylinder 1 through the depressions 1a, 1a, . The mixed grains are dropped and collected by the mixed rice conveying device 13, and are transferred to the finished rice conveying device 11 and the mixed rice conveying device 13, respectively.
is transported to the sorting end side of the rotating sorting cylinder 1,
The waste is collected in a designated collection gutter. In addition, the paddy and some brown rice are collected from the end of the sorting end of the rotary sorting tube 1 into the paddy receiving trough (not shown), and then returned to the husking chamber (not shown), where they are subjected to the husking action again. It is something you receive.

When removing the rotating sorting tube 1 during such hulling work or at the end of the hulling work,
First, after removing the rear cover 17, the fixture 14 is removed, and the support frame 5 is rotated in the direction of arrow B about the rotation shaft 4, so that the inner circumference Evacuate to the side. Then, by pulling the rotary sorting cylinder 1 in the direction of the arrow C while slightly floating it from the rotating bodies 9, 9, etc., the rotary sorting tube 1 can be rotated and sorted while the finished rice conveying device 12 and the mixed rice conveying device 13 are still supported on the machine body. The tube 1 can be pulled out toward the rear of the fuselage.

After adjustment, inspection, and cleaning are completed, if you wish to install the rotary sorting cylinder 1 contrary to the above, the support frame 5 should be moved to the first position.
As shown by the imaginary line in the figure, the rotary sorting tube 1 is retracted to the inner circumferential side from the inner circumferential side, and the rotary sorting tube 1 is moved in the opposite direction of arrow C and put into the sorting case 7. 9 and set it in place. Then, the support frame 5 is rotated from the state shown by the imaginary line in FIG. Then, the finished rice conveying device 12, the mixed rice conveying device 13, and the supply conveying device 11 can all be set at predetermined positions relative to the rotary sorting cylinder 1.

As explained above, this invention prevents foreign objects from entering during the sorting process, deforming the sorting surface of the rotating sorting tube and causing trouble in the sorting process, or preventing the particles from entering the sorting case after the sorting process is complete. When cleaning and inspecting the inside of the rotary sorting tube 1, only the rotary sorting tube 1 can be taken out of the machine without removing the finished rice conveying device 12 etc. from the machine. - Cleaning and replacement work can be done easily and quickly. Furthermore, even when the rotary sorting tube 1 is assembled after completing these operations, the simple operation of attaching the support frame 5 is sufficient, which simplifies the attachment and detachment of the rotary sorting tube 1 and improves sorting work efficiency. This has the excellent effect of improving the

[Brief explanation of drawings]

The figures show one embodiment of the present invention, in which FIG. 1 is a partially cutaway front view of a huller, and FIG. 2 is a side view of a sorting case. Explanation of symbols: 1...Rotary sorting tube, 1a...Indentation, 1b...Flange portion, 1c...Inner peripheral side opening, 2...Selected grain conveying device, 3...Receiving frame, 4...
Rotating shaft, 5... Support frame, 6... Husker, 7... Sorting case, 8... Wind sorting room, 9... Rotating body, 10...
... Grain supply chamber, 11 ... Supply conveyance device, 11a ...
... Conveyance helix, 11b... Receiving gutter, 12... Finished rice conveying device, 12a... Conveying helix, 12b... Receiving gutter, 13... Mixed rice conveying helix, 13a... Conveying helix, 13b... Receiving gutter, 14...Fixing tool, 15
...Mounting tool, 16...Transmission belt, 17...Cover.

Claims (1)

[Claims] 1 A rotary sorting cylinder 1 that rotates around a horizontal axis and sorts mixed grains while pumping them up with a large number of depressions 1a, 1b, ... formed on the inner circumferential surface. A finished rice conveying device 12 for receiving and conveying the finished rice is provided, and one end of the finished rice conveying device 12 is supported by a side wall on one end side of the sorting case 7 that covers the rotary sorting cylinder 1. A support frame 5 is attached to the other side of the rice conveying device 12 to maintain a predetermined relative position between the rotary sorting tube 1 and the finished rice conveying device 12, and the support frame 5 is supported by the receiving frame 3 and rotates. It is configured so that it can be changed between a state in which it protrudes toward the outer periphery of the rotary sorting tube 1 when viewed from the axial direction of the sorting tube 1, and a state in which it is retracted toward the inner periphery of the inner circumferential portion of the rotary sorting tube 1. The present invention is characterized in that a cover 17 having a diameter larger than the outer diameter of the rotary sorting tube 1 is detachably attached to the other end of the sorting case 7 that covers the rotary sorting tube 1, which is the side from which the rotary sorting tube 1 is pulled out. A rotating sorting device.