JPH06100172A - Feeder - Google Patents

Abstract

PURPOSE:To supply a material to be transported reliably to the housing chambers even if the housing chambers to house the material to be transported are constituted so as to be opened only to both sides. CONSTITUTION:A rotary drum 10 is supported rotatably in a casing 1, and plural partition chambers 11 are formed along the outer periphery of the rotary drum 10. The partition chambers 11 of the rotary drum 10 are formed in divisions so as to be opened only to both sides by means of an inner cylinder body 13, an outer cylinder body 14 and plural partition plates 15 extending in a radial direction at prescribed intervals between both the cylinder bodies 13 and 14. A material F to be transported is taken in and out of the partition chambers 11 through both side opening parts of the partition chambers 11. A supply port 20 is arranged above the casing 1, and a hopper 21 is fixed above the supply port 20. A guiding surface 21a is formed in the lower part of the hopper 21 so as to guide the material F to be transported to both side opening parts of the partition chambers 11, and the guiding surface 21a is formed in an inclined shape toward both side opening parts in a position opposed to both side opening parts of the partition chambers 11.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a feeder for transporting powdered materials such as powder cement.

[0002]

2. Description of the Related Art A conventional feeder of this type, for example, a rotary feeder is, for example, Japanese Utility Model Application No. 52-58161.
There is known a structure as shown in No.

In this conventional structure, the rotary drum is rotatably supported in the casing, and a plurality of partition chambers are formed on the outer periphery of the rotary drum.
The partition chamber of the rotary drum is defined by the inner cylinder and a plurality of partition plates extending radially in the outer circumference thereof at predetermined intervals so as to be opened in the outer circumference direction and both sides. The outer peripheral opening of the partition chamber is closed by the casing.

Further, a supply unit is provided at the upper part of the casing, and the transport target is fed into the partition chamber through the outer circumferential opening of the partition chamber by dropping the transport target from the supply unit onto the rotary drum. . A blower port and a transport port are provided on both sides of the lower part of the casing, and air is pressure-fed into the partition chamber from the blower port, and the object to be transported in the partition chamber is transported from the transport port by the forced air flow.

[0005]

However, in this conventional rotary feeder, the partition chamber of the rotary drum is partitioned and formed by the inner cylinder and the plurality of partition plates so as to open in the outer peripheral direction and both sides. ing. Therefore, even if a sealing member or the like is provided on the inner peripheral surface of the casing, air leakage easily occurs from the gap between the outer peripheral opening of the partition chamber and the casing, which reduces the efficiency of transporting the transported object. there were.

Therefore, the partition chamber is divided and formed by the inner cylinder body, the outer cylinder body, and a plurality of partition plates extending in the radial direction at predetermined intervals between both cylinder bodies so as to open only on both sides. It is conceivable that the objects to be transported may be taken in and out of the partition chamber through the openings on both sides thereof. That is, according to this structure, the outer peripheral direction of the partition chamber can be completely closed by the outer cylindrical body, and air does not leak from the outer peripheral direction of the partition chamber, so that the transported object is efficiently transported. be able to.

However, in the case of the above-described structure, the transported object cannot be supplied into the partition chamber through the outer peripheral opening of the partition chamber as in the conventional case. It becomes necessary to supply from both openings. Therefore, unlike the conventional case where the transported object is supplied through the opening in the outer peripheral direction of the partitioning chamber, by simply dropping the transported object from the supply unit onto the rotating drum, the transported object is reliably supplied into the partitioning chamber. There is a new problem that you cannot do it.

The present invention has been made to solve the above problems, and an object of the present invention is to provide an accommodation chamber for accommodating an object to be transported so as to open only on both sides.
An object of the present invention is to provide a feeder capable of surely supplying the transported object into the accommodation chamber.

[0009]

In order to achieve the above object, in the first aspect of the invention, a storage chamber for storing an object to be transported is movably provided in the casing, and the storage chamber is provided on both sides. It is formed so as to be opened only in such a manner that the transported object is put into and taken out of the accommodation chamber through the opening portions on both sides thereof, and the casing has a supply portion for supplying the transported object into the accommodation chamber, and the accommodation chamber. And a guide surface for guiding the transported object to the opening portions on both sides of the storage chamber, and the guide surfaces are provided on both side opening portions of the storage chamber. It is provided obliquely toward the openings on both sides at a position opposed to.

In the second aspect of the invention, the rotary drum is rotatably supported in the casing, a plurality of partition chambers are formed along the outer periphery of the rotary drum, and an object to be transported is placed in the partition chamber at the upper part of the casing. In the rotary feeder, the rotary feeder is provided with a supply part for supplying air, and a blower port for pressure-feeding air into the partition chamber on both lower sides of the casing and a transport port for transporting the transported object from the partition chamber. The partition chamber of the drum, by the inner cylinder, the outer cylinder, and a plurality of partition plates extending in the radial direction at predetermined intervals between the two cylinders,
The compartment is formed so as to open only on both sides, and the transport object is configured to be taken in and out of the partition chamber through the both side opening portions, and the transport portion guides the transport object to both side opening portions of the partition chamber. A guide surface for this purpose is provided, and the guide surface is provided obliquely toward both side openings of the partition chamber at positions facing the both side openings.

[0011]

Therefore, according to the present invention, when the rotary drum is rotated, the material to be transported is supplied from the supply portion to the partition chamber through the openings on both sides of the partition chamber in the upper part of the casing. Then, as the rotary drum rotates, the transported object supplied into the partition chamber is transferred to the lower portion of the casing. After that, in the lower part of the casing, air is pressure-fed into the compartment through the one side opening of the compartment from the air outlet, and the forced airflow forces the transported object in the compartment from the other opening of the compartment to the transportation port. Be transported.

At this time, since the partition chamber of the rotary drum is partitioned and formed by the inner cylindrical body, the outer cylindrical body, and the plurality of partition plates so as to open only on both sides, There is no risk of air leakage. Therefore, the transported object can be efficiently and promptly transported.

Further, the supply section is provided with guide surfaces for guiding the object to be transported to both side openings of the partition chamber, and the guide surfaces are provided on both sides of the partition room at positions facing the both side openings. It is provided obliquely toward the opening. Therefore, the object to be transported is smoothly guided and guided toward both side openings of the partition chamber by the guide surface, and is reliably supplied into the partition chamber.

[0014]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings. As shown in FIGS. 1 and 2, the casing 1 is composed of a substantially cylindrical body portion 2 and a pair of side plates 4 and 5 fixed to both sides of the body portion 2 by a plurality of bolts 3. The rotary shaft 6 is rotatably supported between the side plates 4 and 5 of the casing 1 via bearings 7, and seals 8 are interposed between the outer periphery of both ends and the side plates 4 and 5. The sprocket 9 is fixed to the end of the rotary shaft 6 and is operatively connected to a drive motor (not shown) via a chain or the like.

The rotary drum 10 is fixed to the rotary shaft 6 in the casing 1, and a plurality of partition chambers 11 having a substantially fan-shaped cross section are provided along the outer periphery of the rotary drum 6. Explaining the structure of the rotary drum 10, the pair of side plates 12 are fixed to the rotary shaft 6 at a predetermined interval,
An inner cylindrical body 13 is fixed to the outer peripheries of the side plates 12. The outer cylindrical body 14 is arranged outside the inner cylindrical body 13 at a predetermined interval.

A plurality of partition plates 15 are provided on both the cylindrical bodies 13 and 14.
The partition chamber 15 is fixedly arranged at predetermined intervals so as to extend in the radial direction, and the partition chamber 15 and the two cylindrical bodies 13 and 14 divide and form the partition chamber 11 so as to open only on both sides. In addition, in this embodiment, as shown in FIG. 3, in particular, both cylinders 13 and 14 of the rotary drum 10 and the partition plate 15 are provided on the surface of the metal core 16 and the partition chamber 11 side of the core 16. It is composed of the formed synthetic resin coating layer 17.

The inner peripheral groove 18 is formed on the inner surfaces of the side plates 4 and 5 of the casing 1, and both ends of the inner cylindrical body 13 of the rotary drum 10 are slidably fitted in the inner peripheral groove 18. . The outer peripheral groove 19 is formed on the inner surfaces of the side plates 4 and 5, and both ends of the outer cylindrical body 14 of the rotary drum 10 are slidably fitted in the outer peripheral groove 19. Due to the fitting configuration of the grooves 18 and 19 and the cylindrical bodies 13 and 14, both sides of each partition chamber 11 are closed in a substantially airtight state.

The supply port 20 is formed in the upper portion of the casing 1, and when the partition chamber 11 of the rotary drum 10 is rotated to the upper position of the casing 1, both sides of the partition chamber 11 are opened toward the supply port 20. To be done. The hopper 21 is fixed to the upper portion of the supply port 20 by a plurality of bolts 22, and a powdery material to be transported F such as powder cement is stored inside the hopper 21.
In this embodiment, the supply port 20 and the hopper 21 constitute a supply unit 32. And the rotating drum 10
When the partition chamber 11 comes to the upper part of the casing 1 due to the rotation of, the transported object F in the hopper 21 is supplied from the supply port 20 into the partition chamber 11 through both side openings of the partition chamber 11.

As shown in FIG. 1, at the lower part of the hopper 21, a guide surface 21a for guiding the transported object F to the openings on both sides of the partition chamber 11 is formed.
At a position facing both side openings of the partition chamber 11, it is formed obliquely toward both side openings. That is, between the openings on both sides of the partition chamber 11 and the guide surface 21a of the hopper 21, there is formed a space that allows the transported object F to move toward the openings on both sides. Moreover, since the guide surface 21a is formed in a slanted shape toward both side openings, the transported object F in the hopper 21 is smoothly guided and guided to both side openings of the partition chamber 11.

A guide plate 23 having a substantially chevron cross section is arranged in the hopper 21 so as to cover the outer peripheral upper surface of the rotary drum 10. The guide plate 23 guides and guides the powdery material to be transported F to both sides of the rotary drum 10 without staying on the outer peripheral upper surface of the rotary drum 10. The seal plate 31 is arranged in the upper part of the casing 1 so as to be capable of sliding contact with the outer peripheral surface of the rotary drum 10, and the transported object F in the hopper 21 is a gap between the outer peripheral surface of the rotary drum 10 and the inner peripheral surface of the casing 1. Is prevented from leaking.

A circular blower port 24 is formed in one side plate 4 at the lower part of the casing 1, and a blower pipe 25 is fixedly connected to the outside thereof. Long hole arc-shaped transport port 26
Is formed on the other side plate 5 in the lower part of the casing 1, and a transport pipe 27 is connected and fixed to the outside thereof. Further, as is clear from FIGS. 2 and 4, the cross-sectional area of the blower port 24 is substantially the same as the cross-sectional area of the partition chamber 11, and the cross-sectional area of the transport port 26 is approximately three times the cross-sectional area of the partition chamber 11. Is configured to be. When the transported object F housed in the partition chamber 11 is fed to the lower position of the casing 1 as the rotary drum 10 rotates, both sides of the partition chamber 11 face the blower port 24 and the transport port 26. Is opened.

A blower (not shown) is connected to the blower pipe 25, and the blower pipe 25 and the blower port 24 are fed from the blower with the partition chamber 11 rotated to the lower position of the casing 1.
Air is pumped into the partition chamber 11 through the opening on one side of the partition chamber 11. Then, due to the forced ventilation force caused by the pressure feeding of the air, the transported object F in the partition chamber 11 is moved to the partition chamber 11
From the opening on the other side, it is transported into the transport pipe 27 through the transport port 26. In this embodiment, the air blow port 24 and the transport port 26
The transport section is configured by the above.

The air vent port 28 is formed in one side plate 4 of the casing 1 so as to communicate with the partition chamber 11 on the idle feed side of the rotary drum 10. The air vent pipe 29 is connected to the outside of the air vent port 28 so as to extend obliquely upward, and a strainer 30 is provided in the middle thereof. And
A suction pump (not shown) is connected to the air vent pipe 29, and air is sucked from the inside of the partition chamber 11 on the empty feeding side by the suction pump through the air vent pipe 29 and the air vent port 28. The inside of 11 becomes a negative pressure state.

Next, the operation of the rotary feeder configured as described above will be described. Now, in this rotary feeder, when a drive motor (not shown) is started,
The rotational force is transmitted to the rotary shaft 6 via the chain and the sprocket 9, and the rotary drum 10 is rotated counterclockwise in FIG. As a result, in the upper part of the casing 1, the powdery material to be transported F in the hopper 21 is supplied into the partition chamber 11 through both side openings of the partition chamber 11 located above the supply port 20.

At this time, the guide surface 21 at the bottom of the hopper 21
Since a is formed obliquely toward both side openings of the partition chamber 11 at positions facing the both side openings, the transported object F in the hopper 21 is guided along the guide surface 21a thereof. It smoothly guides and guides to both side openings of the partition chamber 11. Therefore, as in this embodiment, the rotary drum 10
Even if the partition chamber 11 is configured to open only on both sides, the transported object F can be reliably and efficiently supplied into the partition chamber 11.

Further, since the outer peripheral upper surface of the rotary drum 10 is covered with the guide plate 23 having a substantially mountain-shaped cross section, the transported object F does not stay on the outer peripheral upper surface of the rotary drum 10, and the rotary drum 10 is kept. It is possible to prevent the rotation of the wheel from being hindered. Furthermore, since the transported object F in the hopper 21 is smoothly guided and guided to the openings on both sides of the partition chamber 11 by the inclined surface of the guide plate 23a, the guide plate 21a
Combined with the action by, the transported object F can be more efficiently supplied into the partition chamber 11.

Thereafter, as the rotary drum 10 rotates, the transported object F supplied into the partition chamber 11 is fed to the lower portion of the casing 1. Further, in the lower part of the casing 1, the air supplied from a blower (not shown) is
5 and the air outlet 24, the partition room 11 located below
The pressure is fed into the partition chamber 11 from the one side opening. Then, due to the forced wind force associated with the pressure-feeding of the air, the transported object F in the partition chamber 11 is transported from the other side opening of the partition chamber 11 into the transport pipe 27 through the transport port 26.

At this time, the partition chamber 11 of the rotary drum 10
However, since the inner cylinder body 13, the outer cylinder body 14 and the plurality of partition plates 15 are partitioned and formed so as to open only on both sides, the air that is pumped into the partition chamber 11 is divided into the partition chambers. 1
There is no danger of leaking out from 1. That is, unlike the above-mentioned conventional case, the outer peripheral direction of the partition chamber 11 is completely closed by the outer cylindrical body 14, and the partition chamber 11 has a perfect tubular shape, so that forced forced wind force due to the pressure feeding of the air is generated. Partition room 11
The object F can be efficiently operated inside, and the transported object F in the partition chamber 11 can be efficiently and quickly transported.

Further, in this embodiment, the grooves 18 and 19 formed in the side plates 4 and 5 and the cylindrical bodies 13 and 1 of the rotary drum 10 are used.
Due to the fitting configuration with 4, the both sides of the partition chamber 11 are closed in a substantially airtight state. Therefore, it is possible to reliably prevent air leakage between the both side openings of the partition chamber 11 and the both side plates 4 and 5, and it is possible to more efficiently transport the transported object F in the partition chamber 11. .

In particular, the fitting configuration of the inner circumferential groove 18 and the inner cylindrical body 13 can prevent the transported object F from leaking from both sides of the partition chamber 11 to the rotary shaft 6 side. Therefore, it is possible to reliably prevent the leaked transported object F from entering the bearing 7 and hindering the rotation of the rotating shaft 6.

Further, in this embodiment, as shown in FIG. 4, the transport port 26 is formed in the shape of an arc having a long hole so that the cross-sectional area thereof is approximately three times that of the blower port 24 and the partition chamber 11. It is set. Therefore, when the partition chamber 11 accommodating the transported object F approaches or passes through the lower portion of the casing 1 as the rotary drum 10 rotates, even if one side portion of the partition chamber 11 partially blows out. While corresponding to, the other side of the partition chamber 11 is entirely opened to the transport port 26. That is, even if the air from the blower port 24 slightly acts on the inside of the partition chamber 11, since the entire other side portion of the partition chamber 11 is opened to the transport port 26, the entire other side portion is opened. The transported object F in the partition chamber 11 can be easily transported to the transportation port 26 side from the section. Therefore, it is not necessary to send a large amount of air under pressure from the blower port 24, and the transported object F can be effectively transported with a small ventilation force.

After that, when the partition chamber 11 in which the transportation of the object F to be transported is completed is idle-fed upward from the lower part of the casing 1 with the rotation of the rotary drum 10, one side of the partition chamber 11 is aired. It corresponds to the outlet 28. Then, in this corresponding state, air is sucked from the inside of the partition chamber 11 via the air vent pipe 29 and the air vent port 28 by a suction pump (not shown), and the inside of the partition chamber 11 is brought into a negative pressure state. The transported object F in the suction air is filtered by the strainer 30.

Therefore, when the transported object F is resupplied into the partition chamber 11 above the casing 1, a predetermined amount of the transported object F is rapidly and accurately supplied into the partition chamber 11 in the negative pressure state. It Further, as described above, the grooves 18, 19 and the cylindrical body 13,
Since both side portions of the partition chamber 11 are closed in a substantially airtight state by the fitting configuration with 14, the inside of the partition chamber 11 can be surely brought to a negative pressure state, and the transported object F into the chamber 11 can be surely closed. The supply efficiency of can be further improved.

Further, in this embodiment, as shown in FIG. 2, an air vent pipe 29 is connected to the outside of the air vent port 28 so as to extend obliquely upward. Therefore, when the operation of the rotary feeder is stopped, the transported objects F accumulated on the strainer 30 are smoothly dropped and collected into the partition chamber 11 through the inclined portion of the air vent pipe 29 without any trouble.

The present invention is not limited to the configuration of the above-described embodiment, and for example, the size of the space between the opening on both sides of the partition chamber 11 and the guide surface 21a can be changed appropriately.
The arrangement angle of the guide surface 21a may be changed as appropriate, or only both ends of the inner cylinder 13 of the rotary drum 10 may be fitted into the grooves 18 of the side plates 4 and 5 of the casing 1 and both ends of the outer cylinder 14 may be fitted. The configuration of each part may be arbitrarily changed without departing from the spirit of the present invention, such as being configured to be in sliding contact with the inner surfaces of both side plates 4 and 5, or embodying the present invention in a feeder other than a rotary feeder. It is also possible to materialize.

[0036]

As described above in detail, according to the present invention, even if the accommodation chamber for accommodating the transported object is configured to be opened only on both sides, the transported object can be securely placed in the accommodating chamber. The excellent effect of being able to be supplied to.

[Brief description of drawings]

FIG. 1 is a sectional view showing an embodiment of a rotary feeder embodying the present invention.

FIG. 2 is a cross-sectional view showing a vertical cross section at substantially the center of FIG.

FIG. 3 is a partial cross-sectional view showing an enlarged part of a rotary drum.

FIG. 4 is an explanatory diagram showing a correspondence relationship between a ventilation port and a transportation port in a partition chamber.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 ... Casing, 10 ... Rotating drum, 11 ... Partition chamber as accommodating chamber, 13 ... Inner cylinder, 14 ... Outer cylinder, 15 ... Partition plate, 20 ... Supply port which comprises a supply part, 21 ... Supply part Constituting hopper, 21a ... Guide surface, 24 ... Blowing port that constitutes a transporting section, 26 ... Transporting port that constitutes a transporting section, 32 ... Supplying section, F ... Transported object.

Claims (2)

[Claims] 1. An accommodation chamber for accommodating an object to be transported is movably provided in a casing, and the accommodation chamber is formed so as to be open only on both sides, and the accommodation chamber is transferred into the accommodation chamber from both side openings. The casing is configured to load and unload objects, and the casing has a supply unit for supplying an object to be transported into the accommodation chamber,
And a transporting part for transporting the transported object from the accommodation chamber, and the supply part is provided with guide surfaces for guiding the transported object to the openings on both sides of the accommodation chamber. A feeder characterized by being provided obliquely toward both side openings at positions facing the both side openings. 2. A supply for supporting a rotating drum rotatably in a casing, forming a plurality of partition chambers along the outer periphery of the rotating drum, and supplying an object to be transported into the partition chamber at an upper part of the casing. In the rotary feeder provided with a portion, both sides of the lower part of the casing to provide a blower port for pressure-feeding air into the partition chamber and a transport port for transporting an object to be transported from the partition chamber, the partition chamber of the rotating drum, The inner cylindrical body, the outer cylindrical body, and a plurality of partition plates extending in the radial direction at predetermined intervals between the two cylindrical bodies form a partition so as to open only on both sides, and the partition chambers are opened from both side openings. The feeding part is provided with a guide surface for guiding the transported object to both side openings of the partition chamber, and the guide surface faces the both side openings of the partition chamber. At the position Rotary feeder, characterized in that provided on the slant toward both sides opening.