JPS631462A - Return grain treatment apparatus in hulling sorter - 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 [Field of Industrial Application] The present invention relates to a reduced grain processing device in a huller and sorter.

[Problems to be solved by the prior art and the invention] The unhulled mixed rice is appropriately collected in a sorting section, for example, a rotating sorting cylinder, and the paddy is returned to the hulling section and supplied sequentially. It is mixed into the original being and is enjoyed and sorted out. However, the sorting section is unable to completely separate the paddy and brown rice, and the reduced grain usually contains around 10% brown rice, but due to poor adjustment of each section of the sorting section, grain quality, etc. As a result, the occurrence of so-called skin-shear damaged rice cannot be avoided. [Means for solving the problem] This invention attempts to prevent the generation of excess rice with skin shear damage, and is aimed at preventing the generation of excessive rice with skin shear damage. In a hulling and sorting machine configured to return paddy containing unrecovered brown rice to the husking section, a shutter 4 that switches to supply or cut off the supply of raw paddy from the supply funnel 2 between the husking rolls 3 and 3 is installed, and the above-mentioned reduction A brown rice ratio detector 8:{36 is provided in the grain passage section, and based on the brown rice ratio detection result of the brown rice ratio detector 36 that is equal to or higher than a predetermined value, the rice cooker 4 is switched to the raw paddy supply cutoff position and the removal is performed. The structure of the reduced grain processing device in the hulling and sorting machine is configured in such a manner that the prowls 3, 3 are interlocked to widen the interval between them.

[Operation of the invention] The crushed rice that has been husked between the pair of husking rolls is transferred to the sorting section where it is separated into paddy and brown rice. Of these, the brown rice is collected as appropriate and is separated from the paddy and unfinished rice that reach the sorting section discharge port. The collected brown rice is returned to the depu section. The brown rice ratio of this reduced grain is detected by a brown rice ratio detector on the way to the husking part, and depending on this result,
When the ratio of brown rice exceeds a certain value, the flow path of raw rice is blocked by a shutter, and the spacing between the dehulling rolls is widened, and the reduced grains are sent to the sorting section again without being dehulled. Further, when the brown rice ratio is below a certain value, the shutter is opened, the spacing between the hulling rolls is returned to the proper position, and the reduced grains are mixed with the raw rice and are hulled.

[Effects of the invention] As mentioned above, raw paddy supply/cutoff is performed without detecting the ratio of brown rice in the reduced grains, and the spacing between dehulling rolls is controlled, so that the ratio of brown rice in the reduced grains is abnormally high. In this case, only the reduced grains are passed between the shredding rolls for re-sorting, which reduces the chance of grain damage caused by contact with the shredding rolls.

[Example] An embodiment of this invention will be described based on the drawings.

Reference numeral 1 denotes a scraping section, which has a supply funnel 2 at the top and a pair of scraping rolls 3, 3 which rotate at different circumferential speeds at the bottom. The raw rice from the supply funnel 2 flows down through the openings of the horizontally slidable opening/closing shutter 4 and the supply amount adjusting shutter 5, and reaches between the dehulling rolls 3, 3.

A sorting air passage 6 is formed at the bottom of the paper rolls 3, 3.
The rice husks, dust, and peaches in the crushed rice that has passed between the depuring rolls 3 and 3 are air-selected by the action of the suction fan 7, and these rice husks and dust are discharged outside the machine through the dust removal cylinder 8, and the peaches are removed. It is accumulated downward from the middle of the sorting air passage 6. The wind-selected rice, that is, the mixed rice of paddy and brown rice, is configured to reach a rotary sorting section 12 via a receiving trough 9, a transfer spiral 10, and a grain lifting machine 11.

The rotary sorting section 12 has a sorting cylinder 14 in a sorting case 13.
, a mixed rice transfer gutter 15, a finishing rice gutter 16, etc., and the sorting tube 14 has a large number of pot holes 17, 17 formed on its inner peripheral surface, is supported on a substantially horizontal axis, and is moved at a constant speed. It is provided so that it can be rotated in conjunction with each other.

A mixed rice tank 19 communicating with the grain lifting machine 11 is provided on the outside of the fixed wall 18 on the front side of the sorting case 13, and a mixed rice transfer gutter 15 and a finished rice gutter 16 extending from the front and back inside the sorting cylinder 14 are provided inside. Each end is supported. Transfer of these mixed rice @15
, Finished rice fl! 16 are each provided with a transfer spiral 20, 21, and the mixed rice transfer trough 15 is configured to supply mixed rice from the mixed rice tank 19 to the starting end side of the sorting tube 14. Further, the finishing rice gutter 16 is configured to receive and transfer the brown rice scooped into the pot holes 17, 17 and lifted to a high position. Incidentally, some of the grains falling off from the pot holes 17, 17 at a low position are received by the mixed rice transfer gutter 15 and returned to the starting end side again.

22 is a finishing valve provided on the mixed rice scraping side of the finishing rice gutter 16, and is provided so as to be adjustable in angle.

The terminal end of the finishing rice gutter 16 is exposed to the brown rice flow down cylinder 23, and the flowing brown rice passes through the receiving gutter 24, reaches the brown rice gutter 25, and is transferred to the grain frying machine 27 via the transfer spiral 26. Machine 2
It is configured so that it can be taken out of the machine through exit 7.

On the terminal side of the sorting tube 14, grain lifting blades 2 are installed at regular intervals on the inner circumference.
8. Connect the annular body 29 provided with 28, and connect the fixed wall 1
8 Guide plate 30 attached to the inside and reduction gutter 3 connected to the outside
1 and the grains that have reached the terminal end of the sorting tube 14 are pumped up and returned to the supply funnel 2. 32 is a partition plate that partitions the reduced grains and raw rice so that they do not mix.

The opening/closing shutter 4 is configured to be able to slide left and right, and closes the supply port 33 when moved to the right from a position where it simultaneously opens the raw paddy supply port 33 and the reduced grain supply port 34, and closes the supply port 33 when moved to the left. The configuration is such that the mouth 34 is closed. The horizontal movement of the opening/closing shutter 4 is caused by the forward and reverse rotation of the control motor 35.

Reference numeral 36 denotes a brown rice ratio detector provided on the partition plate 32, which can distinguish between paddy and brown rice using, for example, a light emitting element and a light receiving element, and outputs a signal for calculating the brown rice ratio in the reduced grains.

Based on the brown rice ratio detection result, the control motor 35 and the spacing control motor 37 for the deflating rolls 3 and 3 are controlled to rotate.

That is, as soon as the ratio of brown rice in the reduced grain exceeds a predetermined value, the control motor 35 is rotated forward to close the reduced grain supply port 34,
After a certain period of time, the control motor 35 is rotated in the reverse direction to close the raw paddy supply port 33, and the control motor 37 is rotated in the normal direction to remove the dehulling rolls 3, 3.
This is a configuration that expands and maintains the interval. The control motor 37 normally rotates in the forward and reverse directions in response to an output signal from a shedding rate sensor (not shown).

Let us explain the effect of the above example. The opening/closing shutter 4 is set in advance to a position that opens the raw paddy supply port 33 and the reduced grain supply port 34 at the same time, and when the work starts, the paddy from the supply funnel 2 passes between the shredding rolls 3 and 3. The mixed rice that has been subjected to the husking process and the sorting process is supplied into the sorting cylinder 14 through a mixed rice tank 19, a mixed rice transfer gutter 15, etc.

While the sorting tube 14 rotates, it scoops up the mixed rice through the pot holes 17, 17, and the brown rice passes through the finishing valve 22 and becomes finished rice t! The paddy is collected at t16, and because it is a long grain and has a high center of gravity, it falls off from the pot holes 17, 17 at a relatively low position and is returned to the mixed rice layer. The above-mentioned sorting is repeated from the starting end of the sorting cylinder 14 to the terminal end to separate paddy and brown rice. In addition, for brown rice, Ukehi 24, brown rice Hihi 25, 8
The grain is taken out of the machine after passing through the grain machine 27, etc.

In addition, the paddy and uncollected brown rice remaining at the end of the sorting tube 14 are scooped out by the grain lifting blades 28 and 28 and returned to the guide plate 30! ff! 3
1, the grains are returned to part 2 of the supply funnel, flow down through the reduced grain supply port 34, and are subjected to the husking process again. By the way, the brown rice ratio of the reduced grains passing through the reduction gutter 31 is detected by the brown rice ratio detector 36, and when the brown rice ratio exceeds a predetermined value, the opening/closing shutter 4 is first moved by rotating the control motor 35 in the normal direction. The supply port 34 is closed, and a certain amount of reduced grain is stored in the reduction gutter 31. After a certain period of time, the control motor 35 is reversed to open the raw paddy supply port 33.
is closed, and the control motor 37 is rotated in the forward direction to remove the plowing rolls 3,
The above reduced grains are dehulled by rolls 3 and 3.
The waste flows down into the sorting air passage 6 without being subjected to the removal process, and is subjected to wind sorting and rotational sorting. Incidentally, after finishing the process of storing a certain amount of reduced grains, the opening/closing shutter 4 and the like are reset again to continue the work.

[Brief explanation of drawings]

The drawings show one embodiment of the present invention; FIG. 1 is an overall side view, FIG. 2 is an explanatory view of the operation, and FIG. 3 is a flow diagram. In the figure, 2 is a supply funnel, 3, 3 is a scraping roll, 4 is an opening/closing shutter, 12 is a rotating sorting section, 14 is a sorting tube, 15 is a mixed rice transfer gutter, 16 is a finished rice gutter, and 17, 17 are a pot. The hole and 22 are finishing valves. 28. 28 is a grain frying blade, 29 is an annular body, 30 is a guide plate, 31 is a reduction gutter, 32 is a partition plate, 33 is a raw paddy supply port, 34 is a reduction grain supply port, 35.37 is a control motor,
36 indicates a brown rice ratio detector.

Claims (1)

[Claims] In a hulling sorter configured to return paddy including unrecovered brown rice to the hulling section from a sorting section that separates the hulled mixed rice into paddy and brown rice, the raw paddy in the supply funnel 2 is dehulled. Proroll 3
, 3, and a shutter 4 that switches between supply and cut-off is provided, and a brown rice ratio detector 36 is provided in the reduced grain passage section,
Based on the brown rice ratio detection result of the brown rice ratio detector 36 that is equal to or higher than a predetermined value, the shutter 4 is switched to the raw paddy supply cutoff position, and the shutter 4 is interlocked to widen the spacing between the depulping rolls 3 and 3. Reduction grain processing device in a huller sorter.