JPH0335426Y2 - - Google Patents

Description

[Detailed Description of the Invention] "Industrial Application Field" The present invention relates to a vertical grain sorting machine that is provided with a grain frying spiral and a sorting net in an outer shell to sort grain.

``Prior Art'' Inside an outer shell body, which is equipped with a supply hopper for supplying unsorted grains and a storage tank for storing selected fine grains outside the body, there is a spiral blade on the outer periphery of a cylinder that moves upward during rotation. A grain lifting spiral formed by winding the grain lifting spiral, a sorting net having a large number of small holes through which the grain lifting spiral is inserted concentrically, and a driving means for relatively rotating the grain lifting spiral and the sorting net. A vertical type grain product, in which small grains are removed by the sorting net while the grains fed from the supply hopper to the base of the grain lifting spiral body are fried, and the fine grains are discharged into the storage tank. The sorting machine is published in JP-A-58-146475, JP-A-58-
This has already been disclosed in Publication No. 153562 and the like.

Further, regarding a vertical grain sorting machine in which a plurality of units each consisting of the grain lifting spiral, a sorting net, and a drive means for relatively rotating the grain lifting spiral and the sorting net are housed in parallel in an outer shell. Japanese Patent Publication No. 59-150580
There is something disclosed in the publication No.

The device disclosed in Japanese Patent Application Laid-Open No. 59-150580 is capable of increasing the amount of grain lifted by several times as compared to a normal vertical grain sorter equipped with a single unit.

However, for today's vertical grain sorters, 1) the amount of grain lifted per unit time, that is, the grain lifting capacity, is increased, and 2) the ability to remove small grains from unsorted grains, that is, the selection rate is increased. It is required to achieve the following at the same time: 3. The crushing of good grains during the sorting operation is minimized.

"Problems to be Solved by the Invention" However, the conventional vertical grain sorting machine has various problems in simultaneously satisfying the various functions required today.

In other words, in order to simultaneously increase the grain lifting ability and the sorting rate, it is necessary to increase the rotation speed of the grain frying spiral, etc., and to increase the agitation. This results in a result that goes against the third requirement, which is to

In addition, in order to obtain a desired selection rate, there was a problem in that it took time and effort to replace the sorting net and mix the discharged small grains into the supply hopper side and the storage tank side.

Further, the vertical grain sorting machine according to the above-mentioned Japanese Patent Application Laid-Open No. 59-150580 does not involve any improvement in the above-mentioned situation, and is simply a vertical grain sorting machine equipped with a single unit of the above-mentioned unit consisting of a grain frying spiral or the like. This is just a series of multiple sorting machines, and if the amount of grain fed from the supply hopper is uneven, there is a risk of burnout due to overload of the motor.

The present invention was developed by focusing on these conventional problems, and allows the desired selection rate to be freely obtained while performing a gentle sorting action without damaging good grains, resulting in a reduction in labor and effort. The purpose of the present invention is to provide a vertical grain sorting machine that can increase the grain lifting capacity without requiring much effort.

``Means for Solving the Problems'' The gist of the present invention to achieve this purpose is to provide a supply hopper for supplying unsorted grains and a storage tank for storing selected refined grains outside the body. A sorting device comprising a grain lifting spiral body in which a spiral blade is wound around the outer periphery of a cylinder and which moves in an upward direction during rotation, and a large number of small holes are provided through the grain lifting spiral body, which is inserted concentrically into the inside of an outer shell body provided with the grain lifting spiral body. a net, and a drive means for relatively rotating the grain lifting spiral and the sorting net, and the said sorting net while frying the grains fed from the supply hopper to the base of the grain lifting spiral. In a vertical grain sorter that removes small grains by a body and discharges refined grains into the storage tank, the grain lifting spiral and the sorting net are rotated relative to each other. a first sorting functional unit that directly receives unsorted grains from the supply hopper; and a first sorting functional unit that selects the primary grains sorted by the first sorting functional unit. In order to increase the efficiency, a second sorting functional unit for receiving and sorting the primary refined grain at the base of the grain lifting spiral is housed in tandem in the same outer shell, and the supply hopper is placed outside near the first sorting functional unit. A small grain hopper is provided at the rear of the shell, and the storage tank is provided at the front of the outer shell between the first and second sorting functional units, and a small grain hopper is provided to collect small grains discharged from both the sorting functional units. The vertical grain sorting machine is characterized in that an auger is provided at the lower center of both sorting functional units and at the bottom of the small grain hopper for scraping out the small grains to the outside.

"Action": Supply unsorted grains to the supply hopper and start each sorting functional unit.

The grains ascend through the first sorting functional unit, are successively subjected to a sorting action, are fried, are discharged from the outlet of the first sorting functional unit, and are supplied to the base of the grain frying spiral of the second sorting functional unit.

The primary grain that has been sorted by the first sorting functional unit and supplied to the base of the grain frying spiral of the second sorting functional unit is further subjected to a sorting action by the second sorting functional unit, and the final grain that has been fried is The refined grains are discharged into the storage tank from the discharge port of the second sorting functional unit.

Since an intermediate tank with sufficient storage capacity is provided between the first and second sorting functional units,
Even if the rotational speeds of the first and second sorting functional units are changed midway through, the supply of grains to the second sorting functional unit may be interrupted, or grains may overflow into the discharge port of the first sorting functional unit. Never.

Above the space sandwiched between the two sorting functional units, a storage tank for receiving the final refined grain is provided adjacent to the intermediate tank. It is also easy to take measures to mix it directly into the tank.

On the other hand, a small grain tank is provided below the space to receive the small grains discharged from both sorting function units, so the accumulated small grains are removed from the machine by the auger provided. is discharged.

In this vertical grain sorter, the process length of the sorting action is twice that of the conventional one, which has only a single sorting functional unit, so the sorting action of each sorting functional unit is longer than that of the conventional one. In this way, there is no need to forcefully increase the rotation speed to violently stir the grains or force them to violently collide with the sorting net, and the sorting action can be carried out gently, and good grains are not subject to crushing action. .

In addition, changes in the selection rate can be expected by making the meshes of the first and second sorting nets different, or by changing the rotation speeds of the first and second sorting functional units as appropriate. The freedom of choice regarding grain grades is significantly expanded.

“Embodiment” An embodiment of the present invention will be described below based on the drawings.

1 to 10 show an embodiment of the present invention.

The vertical grain sorting machine 10 is equipped with a supply hopper 14 for supplying unsorted grains K on the back side of an outer shell body 13 which is provided with casters 12 and stands on a movable base 11. A storage tank 15 for temporarily storing the final grain K2 is provided at the top.

Inside the outer shell 13, on the side closer to the supply hopper 14, there is provided a grain frying spiral 31 that sorts the supplied unsorted grains K and constitutes the first sorting functional unit 30; A sorting net 32 that is inserted concentrically and has a large number of small holes, a motor 33 and a speed reducer 34 that drive the grain frying spiral 31 and the sorting net 32.
is stored.

In addition, in FIG. 1, a second sorting functional unit 5 is formed on the right side of the first sorting functional unit 30 and is paired with the first sorting functional unit 30.
0, a grain frying spiral 51 and a sorting net 52
, a drive motor 53, and a reduction gear 54 are housed.

Reducers 34, 54 for each sorting functional unit 30, 50
are attached to motor base plates 40, 60, respectively, and side walls 41, 61 are provided on corresponding side surfaces of each sorting net 32, 52.

The functional members belonging to the first sorting functional unit 30 and the second sorting functional unit 50 may have exactly the same specifications, but for example, the driving motors 33 and 5
It is also possible to use one or both of the three motors as variable speed motors.

Furthermore, in order to make the sorting function of the vertical grain sorter 10 even more fine-grained, both sorting net bodies 32,
52 may have a different mesh. Grain receivers 35, 55 are provided at the bases of the grain lifting spirals 31, 51 to receive the supplied grains, and above these grain receivers 35, 55 there is a lower partition plate for receiving the falling small grains. It is divided by 43 and 63. A plurality of lower scraping blades 36, 5 for sweeping out small grains accumulated on the lower partition plates 43, 63.
6 is provided at the bottom of the sorting nets 32, 52.

Sweeping out ports 45, 65 for sweeping out small grains are provided in corresponding parts of each of the lower partition plates 43, 63, and a small grain tank 19 for collecting small grains is provided.
It is open to

An auger 20 is provided at the bottom 19a of the small grain tank 19 to send out the small grains to the outside through a discharge pipe 21 provided to protrude from the back surface of the outer shell 13.

The sorting net bodies 32 and 52 are coupled to the output shafts of the reducers 34 and 54, and a sorting net body drive shaft 37 extends inside the grain frying spiral bodies 31 and 51 and is pivotally supported by the top plate 16 of the outer shell body 13. .

Upper partition plates 44 and 64 are provided near the upper ends of the sorting nets 32 and 52 to surround the sorting nets 32 and 52 and receive the polished grains.
2 and 52 are provided with upper scraping blades 37 and 57 for scraping out these refined grains.

A large volume space is formed in the middle part separated by the side walls 41 and 61, and the primary grain K1 taken out from the discharge port 38 on the side of the first sorting functional unit 30 is temporarily stored and buffered. The bottom of the intermediate tank 17 is funnel-shaped, and the lower end is narrowed to form a delivery path 42 that opens to the grain receiving tube 55 on the second sorting functional unit 50 side. .

The fine grains scraped out by the upper scraping blades 38, 58 are discharged into the intermediate tank 17 on the first sorting functional unit 30 side and into the storage tank 15 on the second sorting functional unit 50 side.

The intermediate tank 17 and the storage tank 15 are separated by a tank partition wall 18, and a mixing mechanism 70 that connects the intermediate tank 17 and the storage tank 15 is provided above the tank partition wall 18. .

The mixing mechanism 70 transfers a portion of the primary grain K1 sent from the first sorting functional unit 30 to the storage tank 1.
5 side, and an opening is provided in a part of the tank partition wall 18 to form an on-off valve as shown in FIG.

The mixing mechanism 70 includes a valve plate 71, an operating shaft 72, a knob 73, and a holding mechanism 74 for keeping the opening degree of the valve plate 71 constant.

The valve plate 71 is made of a rectangular thin plate, and the operating shaft 72 passes through the center of the shape of the valve plate 71. As shown in FIG. An elastic member 74 is interposed between them.

Next, the action will be explained.

The unsorted grains K are fully supplied to the supply tank 14, and the vertical grain sorter 10 is started with the grain receiver tube 35 on the side of the first sorting functional unit 30 filled with grains.

At startup, the first sorting functional unit 30 and the second sorting functional unit 50 may be started at the same time. The second sorting functional unit 50 may be started after a predetermined period of time after the start of the second sorting functional unit 50. Alternatively, an appropriate detection means may be provided in the intermediate tank 17 or in the grain receiving cylinder 55 on the second sorting functional unit 50 side, and the second sorting functional unit 50 side may be started under certain conditions.

The unsorted grains K in the grain receiving cylinder 35 on the side of the first sorting functional unit 30 are scraped up by the grain lifting spiral body 31 and splashed outward by the centrifugal force, and are then thrown away by the sorting net body 32. Under the sorting action, the small grains are discharged through the small holes of the sorting net body 32 into the space defined by the outer shell body 13 and the partition wall 41, fall onto the lower partition plate 43, and fall onto the lower scraping blade 36. The small grains are scraped out by the small grain tank 1 from the small grain sweeping opening 45.
It is discharged at 9.

On the other hand, the good grains gradually rise and are discharged onto the upper partition plate 43, scraped out by the upper scraping blades 38, and discharged into the intermediate tank 17 from the discharge port 39.

The primary grain K1 discharged into the intermediate tank 17 by the first sorting functional unit 30 is sent into the grain receiving cylinder 55 on the second sorting functional unit 50 side from the delivery path 42 provided at the bottom of the intermediate tank 17. be done.

The primary grain K1 fed into the grain receiver cylinder 55 on the second sorting functional unit 50 side is sent upward while being subjected to the same sorting action as on the first sorting functional unit 30 side. The small grains removed at this time are discharged into the small grain tank 19 through the sweep-out port 65, and taken out to the outside through the discharge pipe 21 that opens at the rear surface of the outer shell 13 by the auger 20.

And the final grain K2 is the second sorting functional unit 50
It is temporarily stored in the storage tank 15 through the side discharge port 59.

During the sorting operation, if the final grain K2 exceeds the expected grade, the mixing mechanism 70
is operated as appropriate to directly send a portion of the primary grain K1 to the storage tank 15 to obtain the desired grade of grain K2.

Similarly, during the above-mentioned sorting operation, the driving motor 33
In the case where either or both of 53 and 53 use a variable speed motor, the rotation speed is appropriately controlled while observing the situation of the grain grain, and the final grain K2 of the desired grade can be obtained at the optimum rotation speed.

Further, it is also possible to make the meshes of both the screening nets 32 and 52 different from each other to perform a finer screening action.

Also, when the supply ends, the drive motor 3
It is also possible to control the rotation speed of 3 and 53 to be higher than the rotation speed during sorting and to quickly discharge the residue in the machine during the primary milled grain K1 and the residue in the machine during the secondary milling into the storage tank 15, or First, the rotation speed of one of the drive motors is rotated higher than the rotation speed during sorting, and after a certain period of time, the rotation speed of another drive motor is similarly increased, and the residual inside the machine is discharged into the storage tank 15. is also possible.

"Effect of the invention" According to the vertical grain sorting machine according to the invention, the sorting functional unit that sorts grains is sorted by the first sorting functional unit that sorts unsorted grains, and the first sorting functional unit that sorts unsorted grains. Since the second sorting functional units for sorting the primary refined grains are connected in a column and an intermediate tank for buffering is provided in the middle, the sorting action by each sorting functional unit can be made gentle and careful. Not only is it possible to improve the selection rate, but there is no crushing of grains, increasing the degree of freedom in obtaining the desired grade of grains, reducing overall effort and improving grain frying performance. It became possible.

[Brief explanation of the drawing]

Each figure shows an embodiment of the present invention, in which Fig. 1 is a vertical sectional front view of a vertical grain sorter, Fig. 2 is a cross-sectional plan view of the top plate, and Fig. 3 is a perspective view of the mixing mechanism.
Fig. 4 is a longitudinal sectional view of the valve plate holding mechanism, Fig. 5 is an external front view of the vertical grain sorter, Fig. 6 is a left side view, Fig. 7 is a rear view, and Fig. 8 is a plan view. Similarly, FIG. 9 is a bottom view, and FIG. 10 is an external perspective view. K...Unsorted grain, K1...Primary milled grain, K2...
...Final grain polishing, 10...Vertical grain sorter, 11...
Base, 12... Caster, 13... Outer shell, 14
...Supply hopper, 15...Storage tank, 16...
Top plate, 17... intermediate tank, 18... tank bulkhead, 19... small grain tank, 19a... bottom of small grain tank, 20... auger, 21... discharge pipe,
30...First sorting functional unit, 31,51...Grain frying spiral, 32,52...Sorting net body, 33,53...
...Drive motor, 34...Reducer, 35, 55...
...Grain receiving tube, 36,56...Lower scraping blade, 37,
57... Sorting net drive shaft, 38, 58... Upper scraping blade, 39, 59... Discharge port, 40, 60...
Motor base plate, 41, 61... side wall, 42...
Sending path, 43, 63...Lower partition plate, 44, 64
...Upper partition plate, 45, 65...Small grain sweeping out port, 50...Second sorting functional unit, 70...Mixing mechanism.

Claims (1)

[Scope of Claim for Utility Model Registration] A supply hopper for supplying unsorted grains and a storage tank for storing selected refined grains are provided inside the shell body outside the body, and on the outer periphery of the cylinder, the supply hopper is placed in the upward direction when rotating. A grain lifting spiral body around which a spiral blade is wound, a sorting net body having a large number of small holes through which the grain lifting spiral body is inserted concentrically, and a drive for relatively rotating the grain lifting spiral body and the sorting net body. means, while frying the grains fed from the supply hopper to the base of the grain lifting spiral body, remove small grains by the sorting net, and transfer the fine grains to the storage tank. In the vertical grain sorting machine for discharging grains, the grain lifting spiral, the sorting net, and the driving means for relatively rotating the grain lifting spiral and the sorting net are one sorting functional unit, and unsorted grains are removed from the supply hopper. A first sorting functional unit that directly receives grain feeding; and a first sorting functional unit that receives the primary milled grain at the base of a grain-frying spiral in order to increase the selection rate of the primary milled grain sorted by the first sorting functional unit. and a second sorting functional unit to be sorted are housed in tandem in the same outer shell, the supply hopper is provided on the back surface of the outer shell near the first sorting functional unit, and the storage tank is arranged between the first and second sorting functional units. A small grain hopper is provided on the front surface of the outer shell between the two sorting functional units, and collects small grains discharged from both sorting functional units, and a small grain hopper is provided at the lower center of both sorting functional units, and 1. A vertical grain sorting machine, characterized in that an auger is provided at the bottom to scrape out the small grains to the outside.