JP2000136025A - Powder and grain supplying device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To exactly supply powder and grain, reduce exclusive area and easily perform internal cleaning. SOLUTION: A machine body 2 is provided with lower storing part 4 and upper storing part 5 capable of storing powder and grain and a suction transport mechanism 6 sucking the powder and grain from the lower storing part 4 and transport the power and grain to the upper storing part 5 from the upper part. On the lower part of the upper storing part 5, a discharge port 7 is formed and an opening and closing mechanism 8 for opening and closing this discharge port 7 is provided.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a powder and granular material supplying apparatus for lifting a granular material and supplying the granular material to a portion to be supplied.

[0002]

2. Description of the Related Art For example, in a seeding plant for sowing seeds as a granular material, as a method for supplying seeds to a seeding hopper of a seeding machine, a belt conveyor having a granular material storage section is inclined forward and upward. A method in which the granular material is lifted by a belt conveyor and supplied to a sowing hopper of a sowing machine,
For example, a method is used in which a granular material is lifted from a granular material storage unit by a brush screw conveyor and supplied to a sowing hopper of a sowing machine.

[0003]

In the above prior arts,
Since the supply and stop of powder and granules are performed by operating and stopping the conveyor, accurate supply is difficult, the former belt conveyor system requires a large occupied area, and the latter brush screw conveyor has seeds attached to the brush. Therefore, there is a problem that cleaning when changing the type is troublesome.

SUMMARY OF THE INVENTION It is an object of the present invention to provide a powder and granular material supply apparatus capable of accurately supplying a granular material, occupying a small area, and easily cleaning the inside.

[0005]

The first concrete means for solving the problems in the present invention is that a body 2 has a lower storage section 4 and an upper storage section 5 capable of storing powder and granules, and a lower storage section. 4
And a suction / conveyance mechanism 6 for sucking the powder and the granular material from the upper storage section 4 and carrying it into the upper storage section 4 from above. A discharge port 7 is formed in the lower section of the upper storage section 5 and an opening / closing mechanism for opening and closing the discharge port 7. 8 is provided.

[0006] Thus, the powder and granular material is sucked from the lower storage portion 4 and stored in the upper storage portion 5, and once stored in the upper storage portion 5, the required amount of the powder and granular material is accurately discharged from the discharge port 7. discharge. The second specific means for solving the problem in the present invention is a negative pressure generating means 11 for generating a negative pressure in the upper storage section 5 in addition to the first specific means.
And a carrier 12 that communicates the lower inside of the lower housing 4 and the upper inside of the upper housing 5.

As a result, the powder can be transported only by applying a negative pressure to the inside of the upper storage section 5, thereby simplifying the internal cleaning.
A third specific means for solving the problem in the present invention is:
In addition to the first or second specific means, the opening and closing mechanism 8
An on-off valve 13 for opening and closing the discharge port, and a valve rod 14 provided with the on-off valve 13 at a lower portion and extending to an upper portion of the upper storage portion 5
And an elevating means 15 for supporting the upper part of the valve rod 14 and elevating the same.

Thus, the opening / closing operation of the opening / closing valve 13 can be performed from the upper portion of the upper storage section 5. A fourth specific means for solving the problem in the present invention is that, in addition to the first specific means, the on-off valve 13 is formed in a triangular pyramid shape, and the discharge port 7 has an elastically deformable valve seat member 16. Is provided.
Thereby, when the granular material is seed rice or the like, even if the seed rice is clogged between the discharge port 7 and the on-off valve 13, there is no damage.

[0009]

Embodiments of the present invention will be described below with reference to the drawings. FIGS. 1 to 5 exemplify a seed supply device 1 as a granular material supply device, and the seed supply device 1 is provided with a lower storage section 4, an upper storage section 5, a suction transport mechanism 6, and an opening and closing mechanism 8 in a body 2. It is configured.

In the machine body 2, a vertical frame 22 is fixed to the upper surface of a portable pedestal 21 having casters 20, and a column 23 is erected from the vertical frame 22. Lower container 4A which forms lower storage part 4 using 22
Is installed. The lower container 4A has an inverted triangular pyramid shape, has an upper part opened and can be closed by a lid 24, and the lid 24 is opened to supply the powdery granules from the upper part. By making the lower container 4A have an inverted triangular pyramid shape, the powder and granules are gathered at one place even when the remaining amount is small.

An operation box 25 for operating the suction / conveying mechanism 6 and the opening / closing mechanism 8 is mounted on the support 23 of the body 2, and an upper container 5 A forming the upper storage section 5 is attached to the upper end of the support 23 via a bracket 26. Have been. The upper container 5A has a cylindrical shape at the upper part and a conical shape at the lower part tapered at the lower part, the upper end is closed by a ceiling member 27, and an upper limit sensor 2 for setting the upper limit of the storage amount of the granular material in the cylindrical part.
9 is provided, and a window used for cleaning or inspection is formed, and is closed by a window cover 28 made of a transparent plate or a metal plate so as to be freely opened and closed.

At the lower part of the upper container 5A, a mounting member 30 bolted to the bracket 26 on the outer peripheral side is provided.
Is provided on the lower surface of the mounting member 30.
One flange portion is detachably fixed. The cylindrical member 31 is disposed concentrically with the upper container 5A, and a valve seat member 16 formed of an elastic material such as rubber or plastic is detachably attached to a lower end of the cylindrical member 31 via a stopper 32. The circular discharge port 7 of the upper storage section 5 is formed by the seat member 16.

By detaching the cylindrical member 31 from the mounting member 30, the lower end of the upper container 5A is opened,
Cleaning of the inside becomes easy, and the valve seat member 16 can be replaced by removing the stopper 32. Numeral 14 is a valve stem penetrating through the axis of the upper container 5A.
The opening / closing valve 13 having a triangular pyramid shape is detachably attached to the lower end of the valve, and the opening / closing valve 13 moves up and down to abut on the valve seat member 16 so that the discharge port 7 can be closed. Valve seat member 1
6 is made of an elastic material, so that it is not damaged even if the seeds are sandwiched between the on-off valve 13 and the on-off valve 13.
Occurrence of a lack of stock can be prevented.

A turning motor (actuator) 34 is mounted on the ceiling member 27 via a support member 33. The turning motor 34 is capable of turning a turning arm 34a back and forth by a predetermined angle. The upper end of the valve stem 14 is connected via a spring 35. The support member 33 is provided with an open / close sensor 36 such as a limit switch or a non-contact switch. The swing arm 34a moves upward to open / close the open / close valve 1 via the valve rod 14.
3 is closed, the sensor piece 36a turns the pivot arm 3
4a, the closure of the discharge port 7 is detected.

The on-off valve 13, the valve stem 14, the swing motor 3
An opening / closing mechanism 8 for opening / closing the discharge port 7 is constituted by the opening / closing sensor 4 and the opening / closing sensor 36. The swing motor 34 and the opening / closing sensor 36 can be adjusted vertically so as to properly open and close the opening / closing valve 13. Is provided, so that the valve rod 14 is elastically pulled up, so that even if seed rice is sandwiched between the on-off valve 13 and the valve seat member 16, it is not damaged.

A negative pressure generating means 11 such as a blower is provided on the ceiling member 27, and its suction port is connected to the upper container 5A. One end of a transfer tool 12 such as a hose is connected to the upper part of the cylindrical portion of the upper container 5A, and the other end of the transfer tool 12 extends to the bottom of the lower container 4A. That is, the negative pressure generating means 11 communicates with the upper storage part 5, the lower end of the carrier 12 communicates with the inner lower part of the lower storage part 4, and the upper end communicates with the inner upper part of the upper storage part 5. Negative pressure generating means 11
The transporting device 12 and the like constitute a suction transporting mechanism 6.

When the upper portion of the upper container 5A is closed by the ceiling member 27 and the discharge port 7 is closed by the on-off valve 13, the inside becomes substantially closed. Pressure develops. Then, the granular material in the lower storage section 4 is sucked through the transfer tool 12 and is transferred into the upper storage section 5. Therefore, the granular material can be sucked to the bottom of the lower container 4 </ b> A, the granular material can be transported at any time while the on-off valve 13 is closed, and the transported granular material is stored in the upper storage unit 5. Since the transfer tool 12 can be formed only of a tubular member such as a hose, there is no accumulation or clogging of powder inside, and cleaning can be easily performed.

Reference numeral 37 denotes a cover which can be freely opened and closed, and surrounds the negative pressure generating means 11 and the elevating means 15 on the ceiling member 27 and the like. Reference numeral 39 denotes a chute whose upper end is pivotally supported on the upper part of the column 23 so as to be capable of adjusting the downward angle. The downward angle can be appropriately set by a hook member 40 such as a chain provided between the chute 39 and the ceiling member 27.

The seeding machine 41 has a floor mounting device, a watering device, a seeding device 42, a cover soiling device and the like arranged in a row on a rail base 43, and a hopper 44 of the seeding device 42.
The powder 39 discharged from the upper storage part 5 is a chute 39.
It is possible to supply via. In FIG. 6, the hopper 44 is provided with a detection sensor 45 for detecting the remaining amount of the granular material (seed rice). This detection sensor 45 is hooked on the upper edge of the hopper 44 and is detachable.
Detecting that the amount of the granular material has become equal to or less than the predetermined remaining amount, and reporting it to the seed rice supply device 1 side.

A removable auxiliary hopper 46 can be mounted on the upper part of the hopper 44. When the auxiliary hopper 46 is mounted, the detection sensor 45 is mounted on the auxiliary hopper 46. Next, the seed rice supply operation in the seed rice supply device 1 will be described. The lid 24 is opened, seed rice is artificially put into the lower container 4A, the discharge port 7 is closed by the on-off valve 13, the suction transport mechanism 6 is operated, and the lower container is transported through the transport tool 12. The seed rice in 4A is transported into upper container 5A and temporarily stored.

When the amount of seeds in the hopper 44 of the seeding device 42 decreases and the detection sensor 45 detects the decrease, the opening / closing mechanism 8
Operates for a certain period of time (time set by a timer or the like, which is generally a period during which all of the powder and granules in the upper storage unit 5 can be discharged), and the opening / closing valve 13 is lowered by the lifting / lowering means 15 via the valve rod 14; The discharge port 7 is opened, and the seed rice in the upper storage unit 5 is shot 39
To the hopper 44 via At this time, all the seeds in the upper storage unit 5 are supplied.

The opening / closing valve 13 starts to rise for closing the discharge port 7 after a certain period of time from lowering. When the opening / closing valve 13 rises and closes, the opening / closing sensor 36 detects this and the suction conveyance mechanism The air in the upper container 5A is sucked by operating the negative pressure generating means 11 of FIG. At this time, when the seed rice is placed on the on-off valve 13 and is sandwiched between the on-off valve 13 and the valve seat member 16, the outside air is sucked from between the two, and the seed rice sandwiched by the outside air suction is removed. The outlet 7 is closed without being disturbed by the seed rice.

The operation of the negative pressure generating means 11 is started by the on-off valve 13.
May be performed before the closing is completed. By removing the holding seed rice, the degree of sealing of the upper container 5A when the on-off valve 13 is closed is improved, and the seed rice transport efficiency from the lower storage unit 4 is improved. Seed paddy is carried into the upper storage unit 5 and the upper limit sensor 29
Is activated, or after a predetermined time from the start of suction before the upper limit sensor 29 is activated, the suction transport mechanism 6 is stopped, and
End the cycle.

The present invention is not limited to the above embodiment, but can be variously modified. For example,
The granular material may be fertilizer, chemicals, soil, etc. other than the seed rice, the lower part of the carrier 12 may be formed by a pipe and fixed in the lower container 4A, and a horizontal slide-type shutter for opening and closing the discharge port 7 May be used. The column 23 may be adjustable in length so that the height of the upper storage section 5 can be changed.

[0025]

According to the present invention described in detail above, the granular material is sucked from the lower storage portion 4 and stored in the upper storage portion 5, temporarily stored in the upper storage portion 5, and then supplied from the discharge port 7. Can,
The required amount of powder and granules can be accurately supplied, the powder and granules can be transported only by applying a negative pressure in the upper storage section 5, the transport path can be easily cleaned, and the opening and closing operation of the on-off valve 13 can be performed in the upper direction. It can be carried out from the upper part of the storage part 5, and it is possible to provide a chute below the discharge port 7, and the seeds are clogged between the discharge port 7 and the opening / closing valve 13 when the granular material is seed rice or the like. Even damage can be prevented.

[Brief description of the drawings]

FIG. 1 is an overall front view showing an embodiment of the present invention.

FIG. 2 is an overall side view of the same.

FIG. 3 is a cross-sectional view illustrating a lower structure of an upper storage unit.

FIG. 4 is a side view of the elevating means.

FIG. 5 is a plan view showing an upper structure of an upper storage section.

FIG. 6 is a sectional side view showing a seeder hopper.

[Explanation of symbols]

 1 Seed supply device 2 Body 4 Lower storage unit 5 Upper storage unit 6 Suction / conveyance mechanism 7 Discharge port 8 Opening / closing mechanism 11 Negative pressure generating means 12 Carrier 13 Opening / closing valve 14 Valve rod 15 Lifting / lowering means 16 Valve seat member

Continued on the front page F term (reference) 3E070 AA19 AB13 GA11 HA06 HB20 QA01 QA12 RA02 RA09 3F047 AA12 AB01 CC23 CC25 3F075 AA08 BA02 BB03 CA01 CA02 CA06 CA09 CB02 CB05 CB12 CB13 CB14 CC15 CD09 CD11 DA17

Claims (4)

[Claims] 1. An airframe is provided with a lower storage portion and an upper storage portion capable of storing a granular material, and a suction transport mechanism for sucking the granular material from the lower storage portion and carrying the granular material into the upper storage portion from above. A discharge port formed at a lower portion of the upper storage section, and an opening / closing mechanism for opening and closing the discharge port is provided. 2. The suction transport mechanism according to claim 1, further comprising: a negative pressure generating means for generating a negative pressure in the upper storage section; and a transport tool for communicating an inner lower portion of the lower storage section and an upper upper section of the upper storage section. The granular material supply device according to claim 1, wherein 3. The opening / closing mechanism includes an opening / closing valve for opening / closing a discharge port, a valve stem provided at a lower portion thereof and extending to an upper portion of an upper storage portion, and an upper portion of the valve stem supported. 3. An elevating means for elevating and lowering.
A powder and granular material supply device according to claim 1. 4. The granular material supply device according to claim 3, wherein the on-off valve is formed in a triangular pyramid shape, and a discharge port is provided with an elastically deformable valve seat member.