JP2004352472A - Bucket conveyor device for grain - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a bucket conveyor device for grain provided with an improved inner bottom part cleaning mechanism capable of completely removing grains remaining on an inner bottom face in a housing after stopping operation and performing the work for wiping out dirt adhered to an inner bottom part easily and securely. <P>SOLUTION: This bucket conveyor device constituted so as to scoop up grains supplied into the inner bottom part of the housing by a bucket conveyor and carry them up to a discharge port in an upper part of the housing is provided with the inner bottom part cleaning mechanism which blows up grains remaining in the inner bottom part by a blowing-in air stream into the inner bottom part prior to stop of the conveyor after stopping supply of grains to receive the grains by a bucket during operation. The inner bottom part cleaning mechanism is provided with an air injection nozzle unit attached detachably to a fringe part of a mounting hole provided on a side wall in the inner bottom part and an air blowing/dust collection unit. Lateral width of the rectangular mounting hole is equal to lateral width of the side wall substantially, and a lower fringe of the mounting hole is positioned at the same height as a bottom face of the inner bottom part. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention is configured such that grains and the like supplied to the inner bottom portion thereof are scooped up from a supply port provided in a lower side wall of a vertically long housing by a bucket conveyor, and carried up to a discharge port provided at an upper end of the housing. The present invention relates to a bucket conveyor device for cereals and the like provided with an inner bottom cleaning mechanism for preventing cereals and the like from remaining on the inner bottom after the operation is stopped.
[0002]
[Prior art]
The applicant of the present application has previously developed a bucket conveyor device for cereals and the like provided with the above inner bottom cleaning mechanism and applied for a patent as “Japanese Patent Application No. 59-102820” as described in section [0009]. , << Patent No. 1433512 >>.
[0003]
The structure of this patented bucket conveyor device is basically the same as that of the embodiment of the present invention shown in FIG.
Therefore, a schematic structure of the bucket conveyor device of the above-mentioned prior invention will be described with reference to FIGS. 1 and 2 which are embodiments of the present invention.
In the figure, reference numeral 20 denotes a vertically long housing having a flat rectangular tube shape, in which a drive shaft 22 driven by a motor 21 and a set of special pulleys 24 each fitted on a driven shaft 23, respectively. A bucket 26 is attached to an endless belt 25 stretched between the belts 24 at a predetermined interval (see FIG. 2).
[0004]
As shown in FIG. 1, a hopper 27 for supplying cereals and the like is mounted near the lower end of the right side wall of the housing 20, and cereals and the like lifted by the bucket 26 are provided at the upper end of the left side wall. A discharge port 28 for discharging at a high position is provided.
Reference numeral 31 denotes a tension adjusting mechanism for adjusting the tension of the endless belt 25, and reference numeral 32 denotes an opening / closing lid having a viewing window detachably attached to a lower end portion of the front wall of the housing 20, for inspecting and cleaning the inner bottom of the housing 20. Sometimes useful.
[0005]
Further, as shown in FIG. 6, after closing the shutter 27a at the outlet of the hopper 27, pressurized air is ejected from the side of the inner bottom of the housing 20 before the bucket conveyor is stopped, as shown in FIG. Then, a conventional fuze nozzle unit configured to blow up grains and the like remaining on the inner bottom portion and to receive the cereals etc. in the bucket 26 is additionally provided.
[0006]
As shown in FIGS. 7 and 8 as a conventional example, the conventional blast nozzle unit 40 covers a cover-like nozzle 42 at one end in the longitudinal direction of a shallow and thin blowing tray 41. A slit-shaped blowing port 43 is formed at the inclined lower end.
The cover-shaped nozzle 42 has a configuration in which an end face plate 42b is provided on the upper end edge of the inclined plate 42a, and a side face plate 42c is provided on both side edges.
[0007]
Further, a hose joint 44 for connection to a blower port of a blower / dust collector 50 (see FIG. 6) is provided on the end face wall 42b so as to protrude outward.
FIG. 6, which is a diagram for explaining the function of the fume nozzle unit, illustrates a conventional fume nozzle unit.
[0008]
As shown in FIG. 7, the conventional blast nozzle unit 40 is installed on the inner bottom of the housing 20, and the hose joint 44 projects outward through the side wall of the housing 20.
Dust mixed in grains and the like is blown up by the blast gas from the blast gas nozzle unit 40 as shown in (c) of FIG. 6, and then passes through a dust collection port 33 provided at a lower portion of the housing 20. The air is sucked into the suction port of the blower / dust collector unit 50 via the suction hose 34. Reference numeral 35 denotes a blowing hose.
The ventilation / dust collection unit 50 and the blast nozzle unit 40 constitute an inner bottom cleaning mechanism.
[0009]
[Patent Document 1]
Japanese Patent Application No. 59-102820 (Japanese Patent No. 1433512)
Title of the Invention: Apparatus for removing residual grains and dust in a lift for a grain mill
[Problems to be solved by the invention]
Even if the conventional bucket conveyor device having the above-described structure is provided with an inner bottom cleaning mechanism, it is difficult to completely eliminate grains remaining on the inner bottom of the housing 20 after the operation is stopped due to the structure.
However, if the remaining cereals are left as they are, when the type and grade of the cereals supplied to the bucket conveyor device are switched, a small amount of different cereals will be mixed.
[0011]
In that case, if the cereal is finally commercialized into powder, if it is sold in granular form, this very small amount of foreign substances will be found, and the trust in the product as a food product will increase. The gender can be crucially impaired.
[0012]
Therefore, every time the type of grain to be supplied to the bucket conveyor device is switched, it is necessary to reliably clean the inner bottom portion of the housing 20 by hand.
This cleaning operation is performed by removing the opening / closing lid 32 provided on the lower side wall of the housing 20.
[0013]
However, since the fumarole nozzle unit 40 fixed to the inner bottom part is in the way, it is difficult to completely clean the nozzle.
In addition, as can be understood from FIG. 1, the width of the opening to which the opening / closing lid 32 is attached is narrower than the width of the front wall of the housing 20. Can't clean it well
In other words, it becomes a "blind spot" in cleaning work.
[0014]
Therefore, an object of the present invention is to completely remove the remaining grains on the inner bottom surface of the housing after operation is stopped, which is difficult to completely remove even by the attached inner bottom cleaning mechanism, and to attach the inner bottom portion to the inner bottom portion. An object of the present invention is to provide a bucket conveyor device for cereals and the like provided with an improved inner bottom cleaning mechanism, which can easily and reliably perform the work of wiping off the stains.
[0015]
[Means for Solving the Problems]
In order to achieve the above object, a bucket conveyor device for cereals and the like according to the present invention includes:
Grains and the like supplied to the inner bottom of the vertically long housing are scooped up by a bucket conveyor and transported to the discharge port at the top of the housing.
After stopping the supply of cereals, etc., prior to stopping the bucket conveyor, the airflow blown toward the inner bottom blows up the cereal, etc. remaining on the inner bottom, and receives it in the bucket during operation. The inner bottom cleaning mechanism is attached,
The inner bottom cleaning mechanism includes a blowing nozzle unit detachably attached to a hole edge of a mounting hole provided on a side wall of the inner bottom, and a blowing / dust collecting unit having a function of blowing and collecting dust. And
The mounting hole is formed in a rectangular shape, the width thereof is substantially equal to the inner width dimension of the housing, and the lower edge of the mounting hole is located at the same height as the inner bottom.
Further, the blast nozzle unit has a mounting plate that is slightly larger than the mounting hole, an air supply hose joint provided on the outer surface of the mounting plate, and And a nozzle forming part.
Furthermore, a rectangular frame-shaped mounting flange for screwing the peripheral portion of the mounting plate in contact with the outer periphery of the mounting hole is provided.
[0016]
BEST MODE FOR CARRYING OUT THE INVENTION
Hereinafter, an embodiment of the present invention will be described with reference to FIGS.
FIG. 1 is an external perspective view of a bucket conveyor device 100 of this embodiment.
Regarding the main configuration of the bucket conveyor device 100, [Prior Art]
Has already been described, and a duplicate description will be omitted.
[0017]
The bucket conveyor device 100 according to the present invention is different from the above-described conventional bucket conveyor device in that a fume nozzle unit of a fume nozzle unit and a blower / dust collector unit that constitutes an attached inner bottom cleaning mechanism. Therefore, the following description will be made mainly for the blast nozzle unit.
[0018]
FIG. 2 is a partially broken front view of a main part, showing a state in which the fumarolic nozzle unit 10 of this embodiment is detachably attached to the inner bottom portion of the housing 20 of the bucket conveyor device 100.
FIG. 3 is a partial perspective view showing a portion of the mounting hole 29 of the blast nozzle unit 10 provided below the side wall 20 a of the housing 20.
4 and 5 are a perspective view and a vertical cross-sectional view of the blast nozzle unit 10, respectively.
[0019]
The mounting hole 29 of the flammable nozzle unit 10 is formed in a rectangular shape, and as shown in FIG. 3, its width is substantially equal to the inner width of the side wall 20a.
The lower edge 29a of the mounting hole 29 is located at the same height as the bottom surface 20b constituting the inner bottom. That is, no step is formed at this connection point.
The flat bottom surface 20b is connected to the right side wall of the housing 20 via the upward curved surface 20c as shown in FIG.
[0020]
A rectangular frame-shaped mounting flange 36 for detachably screwing the blast nozzle unit 10 around the outer periphery of the mounting hole 29 is mounted on the side wall 20a by welding.
[0021]
The flammable nozzle unit 10 of this embodiment includes a rectangular mounting plate 1 having a size covered by the mounting flange 36, a nozzle forming portion 2 projecting from the inner surface of the mounting plate 1, An air supply hose joint 3 whose base end is connected to the ventilation hole 1a provided in the plate 1 is provided.
[0022]
As shown in FIGS. 4 and 5, the nozzle forming section 2 has a shape in which a plate material is bent into a flat square gutter shape having a downward U-shape. The corner gutter has a height that gradually decreases toward the tip.
The hose joint 3 is arranged so that its base end faces the inner space of the nozzle forming section 2 having a square gutter shape (see FIG. 4).
[0023]
As shown in FIG. 3, a plurality of bolts 37 for detachably connecting the mounting plate 1 in an abutting state are provided on the mounting flange 36 at appropriate intervals.
On the other hand, the mounting plate 1 is provided with a plurality of bottle holes 4 through which the bolts 37 are inserted.
A nut 5 with a knob is screwed into the tip of the bolt 37 as shown in FIG.
[0024]
As shown in FIG. 2, the fumarolic nozzle unit 10 inserts the nozzle forming portion 2 into the inner bottom portion of the housing 20 from the mounting hole 29 provided in the side wall 20a. The nut 5 is screwed into each of the bolts 37 in a state where the nut 5 is in contact with the flange 36, so that the nut 5 is fixed at a predetermined position on the inner bottom portion.
In this state, a slit-shaped blowing port 6 is formed between the tip of the inner space of the nozzle forming section 2 and the bottom surface 20b of the housing 20.
Reference numeral 38 in FIG. 2 denotes a wind shield plate disposed immediately above the nozzle forming unit 2.
[0025]
Next, the operation of the bucket conveyor device 100 of the above embodiment will be described.
The functions and operations of the bucket conveyor itself are the same as those of the existing bucket conveyor, so that the description thereof will be omitted, and the following description will be made mainly on the operation of the inner bottom cleaning mechanism with reference to FIGS.
As described above, in FIG. 6, the flammable nozzle unit 10 is depicted as a conventional fixed-mount flammable nozzle unit.
[0026]
As shown in FIG. 6B, when the bucket conveyor which has been operated in the state shown in FIG. 6A is stopped after closing the exit shutter 27a of the hopper 27, Some cereals are left behind on the bottom surface 20b.
This is because a gap is provided between the bucket 26 and the bottom surface 20b to prevent mutual interference.
[0027]
Therefore, when it is desired to completely remove the remaining grains by operating the inner bottom cleaning mechanism, the air blowing and dust collecting unit 50 is started before the operation of the bucket conveyor is stopped.
Then, as shown in FIG. 2 (and c of FIG. 6), pressurized air is jetted out of the jet port 6 of the jet nozzle unit 10 along the bottom surface 20b of the housing 20.
[0028]
The remaining cereals on the bottom surface 20b blown off by this gusty stream are blown up considerably along the upward curved surface 20c connected to the bottom surface 20b and the side wall surface of the housing 20, and then fall on the lower part during the natural fall. It is received by the located bucket 26.
Then, the received grains are transported to the discharge port 28 by the bucket conveyor that is still operating at this time.
[0029]
If dust is mixed in the cereal, it is blown higher than the cereal and reaches the dust collection port 33.
The blown-up dust is sucked into the blower / dust collector unit 50 via the suction hose 34, and is captured by a dust filter (not shown).
[0030]
However, even if the inner bottom cleaning mechanism can be moved, dirt that easily adheres gradually accumulates on the bottom surface 20b over time.
You.
If the deposits are left undisturbed, they can serve as a hotbed of various harmful bacteria to the human body.
[0031]
Therefore, it is necessary to carefully and completely clean the inner bottom portion of the housing 20 using human hands in a timely manner.
In this case, as in the above-described conventional apparatus, when the blowing nozzle unit is incorporated in a fixed state, and furthermore, when the opening for cleaning is small, it is extremely difficult to reliably clean.
[0032]
In contrast, the blast nozzle unit 10 according to the present invention can be easily taken out of the housing 20 when cleaning the inner bottom.
Further, as shown in FIG. 3, the mounting hole 29 of the blast nozzle unit 10 provided on the side wall 20a of the housing 20 is sufficiently large, so that it is difficult to reach even if the hand is inserted into the inner bottom portion, and it is recessed in a step shape. There are no corners, so to speak, "blind spots" during cleaning.
Therefore, a complete and reliable cleaning operation of the inner bottom can be performed extremely easily and quickly.
[0033]
【The invention's effect】
As is clear from the above description, the bucket conveyor device for cereals and the like according to the present invention has a significantly improved inner bottom cleaning mechanism as compared with conventional ones, and thus can be compared with existing devices of the same type. It exhibits more practical functions as listed below.
(A) The fume nozzle unit housed in the inner bottom of the housing can be easily removed when cleaning the inner bottom, so that manual finishing cleaning is much more reliable and quicker than with existing equipment. Can be done.
(B) In addition, since the mounting hole of the blast nozzle unit is made sufficiently large, the "dead spot" part of the work at the time of finish cleaning by hand can be completely eliminated, making it easier, more reliable and quicker. Can be cleaned.
(C) Therefore, it is possible to eliminate the possibility that the reliability of the product may be lost because very different types of cereal are mixed with the cereal that has been marketed as a product.
(D) Further, the dirt left attached to the inner bottom portion serves as a hotbed of various germs, and there is no danger of soiling the grains.
[Brief description of the drawings]
FIG. 1 shows an embodiment of the present invention, and is an external perspective view of a bucket conveyor device.
FIG. 2 is a partial cutaway front view of a main part, showing a state in which a blast nozzle unit is attached to a bottom portion inside a housing of the apparatus.
FIG. 3 is a partial perspective view showing a mounting hole portion of the blast nozzle unit provided on a side wall of the housing.
FIG. 4 is a perspective view of the fumarolic nozzle unit.
FIG. 5 is a longitudinal sectional view of the blast gas nozzle unit.
FIG. 6 is an operation explanatory view of the inner bottom cleaning mechanism, which is composed of a combination of the blast nozzle unit and the air supply / dust collection unit.
FIG. 7 is a view showing a conventional example, and is a view corresponding to FIG. 2 of an apparatus having a different structure of a blast nozzle unit.
FIG. 8 is a perspective view of the fume nozzle unit.
[Explanation of symbols]
100 Bucket conveyor 10 Fume nozzle unit (inner bottom cleaning mechanism)
50 Air supply / dust collection unit (inner bottom cleaning mechanism)
DESCRIPTION OF SYMBOLS 1 Mounting plate 1a Vent hole 2 Nozzle formation part 3 Hose joint 4 Bolt hole 5 Nut 6 Spout port 20 Housing 20a Side wall 20b Bottom surface 20c Curved surface 21 Motor 22 Drive shaft 23 Driven shaft 24 Special pulley 25 Endless belt 26 Bucket 27 Hopper 27a Shutter 28 Discharge port 29 Mounting hole 29a Lower edge 31 Tension adjusting unit 32 Opening / closing lid 33 Dust collecting port 34 Suction hose 35 Blowing hose 36 Mounting flange 37 Bolt 38 Wind shield plate 40 Conventional blast nozzle unit 41 Blow tray 42 Cover-shaped nozzle 42a Inclined plate 42b End plate 42c Side plate 43 Fumarole 44 Hose joint

Claims (4)

Grains and the like supplied to the inner bottom of the vertically long housing are scooped up by a bucket conveyor and transported to the discharge port at the top of the housing.
After stopping the supply of cereals, etc., prior to stopping the bucket conveyor, the airflow blown toward the inner bottom blows up the cereal, etc. remaining on the inner bottom, and receives it in the bucket during operation. The inner bottom cleaning mechanism is attached,
The inner bottom cleaning mechanism includes a blowing nozzle unit detachably attached to a hole edge of a mounting hole provided on a side wall of the inner bottom, and a blowing / dust collecting unit having a function of blowing and collecting dust. Bucket conveyor device for cereals and the like. 2. The mounting hole according to claim 1, wherein the mounting hole is formed in a rectangular shape, the width thereof is substantially equal to the inner width dimension of the housing, and the lower edge of the mounting hole is located at the same height as the inner bottom. Bucket conveyor for cereals etc. The blast nozzle unit has a mounting plate that is slightly larger than the mounting hole, a hose joint for air supply provided on the outer surface of the mounting plate, and a nozzle provided on the inner surface of the mounting plate and having a flaming port oriented sideways. The bucket conveyor device for cereals or the like according to claim 1, further comprising a forming unit. The cereal according to any one of claims 1 to 3, wherein a rectangular frame-shaped mounting flange for screwing a peripheral portion of the mounting plate in an abutting state is provided around an outer periphery of the mounting hole. Conveyor device for etc.

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