JP2001334138A - Loader hopper - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a loader hopper which is surely and efficiently capable of agitating materials within a hopper body by the suction of a suction type pneumatic source and is capable of efficiently removing dust and mixing powder and granular materials. SOLUTION: This loader hopper 1 has a supply port 15 to which a supply pipe 4 for supplying the materials is connected and a suction port 12 to which a suction pipe 5 for sucking gas by a suction type blower 13 is connected. The hopper is so constituted that the materials supplied from the supply port 15 are agitated in this hopper body 3 by the suction generated by the suction type blower 13. The loader hopper has a guide member 25 for guiding the materials supplied into the hopper body 3.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

The present invention relates to a loader hopper, and more particularly, to a loader hopper used for a pneumatic transportation device.

[0002]

2. Description of the Related Art For example, JP-A-9-155171 and JP-A-9-294 relate to the present invention.
No. 926 discloses a mixing apparatus for mixing a powder material. In these mixing devices, a supply port is formed at the center of the bottom of the hopper body, and a suction port is formed at the center of the top. A supply pipe connected to a material supply source is connected to the supply port,
A suction pipe is connected to the suction port for sucking the inside of the hopper body by a suction blower.

[0003] Further, a filter is provided in the hopper body at a position facing the suction port, and the granular material supplied into the hopper body by suction of the suction blower has a certain particle size or less. The granular material passes through the filter and is discharged from the suction port together with the gas. In addition, the powder having a certain particle size or more collides with the filter and falls in the hopper body by its own weight. Therefore, in such a mixing device, when the inside of the hopper body is sucked by the suction blower,
The granular material supplied from the supply port is agitated along with the flow of gas, and as a result, while the granular material such as dust having a certain particle size or less is discharged from the suction port, in the hopper body,
Powders such as particles having a certain particle size or more can be mixed well.

[0004]

However, in the mixing apparatus described in the above-mentioned publication, it is not possible to sufficiently agitate the granular material in the hopper main body, and therefore the removal of the dust becomes insufficient. In addition, there is a possibility that mixing defects of the powder and granules may occur, causing various inconveniences in subsequent processing steps.

SUMMARY OF THE INVENTION The present invention has been made in view of such a problem. It is an object of the present invention to surely stir a material in a hopper body by suction of a suction-type pneumatic source, and to remove dust and powder. An object of the present invention is to provide a loader hopper capable of efficiently mixing particles and the like.

[0006]

In order to achieve the above object, according to the first aspect of the present invention, a gas is sucked by a supply port to which a supply pipe for supplying a material is connected, and a suction type pneumatic source. And a suction port to which a suction pipe for connection is formed. The material supplied from the supply port is agitated in the hopper body by suction by the suction type pneumatic source. In the loader hopper described above, a guide means for guiding a material supplied into the hopper body is provided.

In such a configuration, when the suction type pneumatic power source is operated, the inside of the hopper body is sucked from the suction pipe through the suction port, whereby the material is supplied from the supply pipe into the hopper body through the supply port. Supplied. Then, the material supplied into the hopper main body is sufficiently stirred and mixed with the flow of gas by the guide by the guide means.

[0008] The invention described in claim 2 is the first invention.
In the invention described in (1), the guide means is constituted by a guide member provided from the supply port toward the suction port.

According to this configuration, the material supplied from the supply port into the hopper body is first guided by the guide member along the flow of the airflow, and flows toward the suction port. Next, after passing through the guide member, it is released from the guide member. Therefore, the material is stirred while flowing in the hopper body so as to circulate along the guide member.

[0010] Further, the invention described in claim 3 is based on claim 2.
The invention is characterized in that the supply port is formed at the bottom of the hopper main body, and the suction port is formed at the top of the hopper main body.

According to such a configuration, the material supplied from the supply port into the hopper body is guided by the guide member along the flow of the airflow, and flows so as to rise toward the suction port. After passing through the guide member, it is released from the guide member and falls under its own weight.
Thereby, the material is stirred while being circulated and flowing along the guide member in the hopper main body so as to repeatedly rise and fall.

The invention described in claim 4 is the first invention.
In the invention according to any one of the first to third aspects, a discharge port for discharging a material is formed separately from the supply port in the hopper body.

According to this structure, the material is supplied from the supply port into the hopper body by operating the suction-type pneumatic source to suck the inside of the hopper body, and the material is stirred and mixed by the airflow. Even in this case, the agitated and mixed material can be discharged from a discharge port formed separately from the supply port.

The invention described in claim 5 is the first invention.
In the invention described in any one of the above items (4) to (4), the supply port also serves as a discharge port for discharging the material.

According to such a configuration, if the operation of the suction-type pneumatic source is stopped, the agitated and mixed material can be discharged from the supply port.

The invention described in claim 6 is the same as the invention in claim 5
Wherein the supply pipe is branched into a supply pipe main body for supplying the material and a discharge pipe for discharging the material on the upstream side of the supply port in the material supply direction. It is characterized by.

According to such a configuration, the suction type pneumatic power source is operated to suck the inside of the hopper main body, thereby supplying the material from the branched supply pipe main body into the hopper main body through the supply port. By stopping the operation of the suction-type pneumatic power source, the material can be discharged from the discharge pipe through the supply port.

Further, the invention described in claim 7 is based on claim 4.
In the invention described in any one of the above items (6) to (6), the discharge port is connected to an airtight material storage means.

According to such a configuration, when the suction type pneumatic power source is operated to reduce the pressure in the hopper body, the inflow of gas from the discharge port can be prevented without providing an on-off valve and the like, and the supply port can be prevented. The material can be reliably supplied into the hopper body.

The invention described in claim 8 is the same as the invention in claim 5.
And a guide hopper that covers the supply port and has a discharge portion below. The supply pipe is provided so as to pass through the guide hopper, and the supply pipe is provided in the guide hopper. A gap for discharging the material from the inside of the pipe is opened.

According to such a configuration, by stopping the operation of the suction-type pneumatic power source, the agitated and mixed material is discharged from the supply port to the supply pipe, and then into the guide hopper from the gap of the supply pipe. It falls and is further discharged from its discharge part.

[0022]

FIG. 1 is a sectional front view showing a first embodiment of a loader hopper according to the present invention, and FIG. 2 is a schematic explanatory view showing an entire structure of a pneumatic transport device using the loader hopper.

In FIGS. 1 and 2, the loader hopper 1 is applied to a pneumatic transport device. For example, the loader hopper 1 separates dust from a material such as a plastic pellet or the like and mixes a plurality of materials. The mixed material is used to supply the processing device 2 as a material storage unit such as a molding machine.

As shown in FIG. 1, this loader hopper 1
Has a hopper body 3 and a supply pipe 4 and a suction pipe 5 connected to the hopper body 3. Hopper body 3
Is formed continuously at a lower end of the tubular upper portion 6, a tubular portion 7 connected to the lower end of the upper portion 6, and a lower end of the tubular portion 7. And a cylindrical lower diaphragm portion 8 whose opening cross-sectional area becomes narrower downward. In the first embodiment, the tube portion 7 is formed in a substantially cylindrical shape, and the upper throttle portion 6 and the lower throttle portion 8 are formed in a substantially funnel shape.

Flanges 6a and 7a are formed at the upper end of the pipe 7 and the lower end of the upper throttle 6 so as to be bent toward the outer peripheral side.
The inside of the hopper main body 3 is closed in a hermetically closed manner by the parts a and 7a being fastened to each other by a fastening means such as a bolt 9.

A filter 11 such as a punching filter is interposed between the flanges 6a and 7a. The filter 11 is provided in the hopper body 3 so as to face a suction port 12 described later, and prevents the suction port 12 from sucking a material having a certain particle size or more. That is, the filter 11 has different diameters depending on the purpose and use thereof, but has a large number of holes for preventing the passage of the granular material and passing only the dust. Although the flat filter 11 is used in the first embodiment, the shape and the structure such as a dome-shaped filter provided so as to cover the suction port 12 are appropriately selected.

Further, a suction port 12 is opened at the top of the center of the upper throttle section 6, and the suction pipe 5 is connected to the suction port 12 continuously and integrally with the upper throttle section 6. Have been. As shown in FIG. 2, a suction-type pneumatic power source such as a suction blower 13 is connected to the other end of the suction pipe 5. In FIG. 2, a filter 14 for trapping dust sucked from inside the hopper main body 3 is provided between the loader hopper 1 and the suction blower 13 in the suction pipe 5.

As shown in FIG. 1, a supply port 15 is opened at the lowermost portion at the center of the lower throttle section 8, and the supply pipe 4 is provided with a lower throttle. It is connected to the part 8 continuously and integrally. As shown in FIG. 2, the supply pipe 4 is connected to a plurality of storage tanks 16 in which materials to be mixed are stored, respectively. A filter 18 for removing moisture or the like is provided.

Each of the storage tanks 16 is provided with a measuring valve 17 between the supply pipe 4 and the material stored in each of the storage tanks 16 by adjusting the measuring valve 17. It is configured to be supplied into the hopper body 3 at a constant rate. It should be noted that the present invention is not limited to the case where the measuring valves 17 are provided in all the storage tanks 16.
May be adjusted without providing the measuring valve 17 provided in the other storage tank 16. Alternatively, the measuring valve 17 may be provided in the supply pipe 4 and the storage tank 16 may be adjusted by operating the measuring valve 17. May be configured to be supplied into the hopper body 3 at a constant rate.

As shown in FIG. 1, a discharge port 21 is opened on the side of the lower throttle section 8. That is, the discharge port 21 is formed at the side of the lower throttle section 8 at a predetermined distance from the supply port 15 of the hopper body 3,
A discharge pipe 22 is connected to the discharge port 21 continuously and integrally with the lower throttle portion 8.

As shown in FIG. 2, a processing device 2 such as a molding machine having airtightness is connected to the other end of the discharge pipe 22. A level meter 23 for measuring the amount of material in the hopper main body 3 is provided on the outer side of the lower throttle section 8.
Is attached.

A guide member 25 is provided inside the hopper body 3 as guide means for guiding the material supplied into the hopper body 3. The guide member 25 has a cylindrical shape, one end of which is disposed opposite to the filter 11 with a predetermined gap therebetween and the other end thereof is opposed to the supply port 15 at a predetermined interval above the supply port 15. Are located in More specifically,
The guide member 25 has a cylindrical shape along the axial direction of the pipe portion 7, and is arranged to guide the material from the supply port 15 to the suction port 12.

The gap between the upper end of the guide member 25 and the filter 11 is designed to allow the material that rises in the air flow to fall outside the guide member 25 when falling against the filter 11 by its own weight. The predetermined interval is set. Further, in the gap between the lower end of the guide member 25 and the inner wall surface of the lower throttle portion 8, the material near the supply port 15 is sucked into the guide member 25 by the rising airflow inside the guide member 25. Such a predetermined interval is set. Further, the discharge port 21 is provided so as to be disposed outside the lower end of the guide member 25.

The guide member 25 is held by a holding member 26 provided so as to protrude radially inward from the inner wall surface of the tube portion 7. The holding member 26 is arranged radially in a plan view with the guide member 25 as a center, and supports the guide member 25 at two positions in the vertical direction. The holding member 26 may be formed so as to protrude from the lower throttle portion 8, may be formed so as to protrude from the upper throttle portion 6, or may be formed so as to protrude from the filter 11. In addition, the holding member 26 has a triangular cross section having a bottom surface at a lower portion (a shape having no flat surface at an upper portion).
It is preferable to form the shape so as not to hinder the falling of the material.

Next, the duster is separated from the material by the loader hopper 1 of the first embodiment configured as described above,
A method for mixing a plurality of materials will be described.

First, when the suction blower 13 is operated,
The material in each storage tank 16 is sucked through the suction pipe 5, the hopper body 3, and the supply pipe 4. Thereby, the material stored in each storage tank 16 is pneumatically transported into the hopper main body 3 via the supply pipe 4 at a constant rate.

At this time, since an ascending airflow is generated inside the hopper body 3 along the inside of the guide member 25,
First, the material supplied to the hopper body 3 is
5 and rises toward the suction port 12 on the rising airflow inside. Next, the material that has passed through the guide member 25 collides with the filter 11, and a material having a certain particle size or more falls by its own weight. On the other hand, dust or the like having a certain particle size or less is sucked together with the gas from the suction port 12 through the hole of the filter 11, trapped by the filter 14 provided in the suction pipe 5, and only the gas is discharged from the suction blower 13 to the atmosphere. You.

The material that has hit the filter 11 falls outside the guide member 25 by its own weight,
From above, is again sucked into the ascending airflow inside the guide member 25 and rises. As a result, as shown by the arrow, the material is guided inside the hopper body 3 by the guide member 25.
It is stirred while circulating so that it rises inside and falls outside. Therefore, with a simple configuration, the materials are efficiently stirred and mixed in the flow of the air current. Therefore, it is possible to efficiently separate the dust, mix the powder and the like, and the like.

A part of the material to be stirred and mixed as described above is discharged from the discharge pipe 22 through a discharge port 21 formed separately from the supply port 15 on the side of the lower throttle section 8. Then, it is supplied to the processing device 2. As described above, in the loader hopper 1 of the first embodiment, the discharge port 21 is connected to the supply port 15.
Therefore, even while the materials are being stirred and mixed in the hopper body 3, the stirred and mixed materials can be discharged from the outlet 21. Therefore, with a simple configuration, continuous mixing and discharging of the material can be performed, and the efficiency of the processing can be improved.

Further, since the processing device 2 having airtightness is connected to the discharge pipe 22, when the suction blower 13 is operated to reduce the pressure inside the hopper body 3, no on-off valve or the like is required. Also, the inflow of gas from the outlet 21 can be prevented, and the material is reliably supplied from the supply port 15 into the hopper body 3.

FIG. 3 is a sectional front view showing a second embodiment of the loader hopper according to the present invention. Next, a loader hopper according to a second embodiment will be described with reference to FIG. In the description of the loader hopper of the second embodiment, the same members as those of the loader hopper of the first embodiment are denoted by the same reference numerals, and the detailed description thereof will be omitted.

In the loader hopper 1 of the second embodiment, the first
Similarly to the loader hopper of the embodiment, a supply port 15 is opened at the lowermost portion at the center of the lower throttle section 8.
The outlet 21 is opened at a position on the side of the lower throttle portion 8 and at a predetermined distance from the inlet 15, and the outlet 21 is connected to the outlet 21. 22 are formed.

In the loader hopper 1 of the second embodiment, the supply pipe 28 connected to the supply port 15
On the upstream side (lower side) of the supply direction of the material from the supply port 15, the supply pipe 15 is branched into a supply pipe main body 29 for supplying the material and a discharge pipe 30 for discharging the material. That is, the supply pipe 28 is formed so as to hang down from the lower throttle portion 8, and is branched at the branch portion 31 into a discharge pipe 30 that hangs as it is and a supply pipe main body 29 that extends in a substantially horizontal direction. . The other end of the discharge pipe 22 connected to the discharge port 21 is connected to the discharge pipe 30 on the way below the branch portion 31, and the lower end of the discharge pipe 30 is connected to the processing apparatus 2. It is connected.

Therefore, at the time of mixing and stirring the materials in the hopper body 3, the materials are sequentially supplied to the processing apparatus 2 from the discharge port 21 through the discharge pipe 22, and at the end of the mixing and stirring, due to its own weight. The material that falls is the supply port 1
5 is supplied to the processing apparatus 2 through the discharge pipe 30. Therefore, the loader hopper 1 according to the second embodiment has the same advantages as the loader hopper 1 according to the first embodiment. In addition, when the suction blower 13 is stopped, the agitated and mixed material is supplied through the supply port 15. It can be discharged from the discharge pipe 30. Therefore, the discharge time can be reduced. Further, since the material hardly remains in the hopper main body 3, the mixing accuracy can be improved in the next stirring and mixing process even if the material, ratio, and the like of the material are changed.

FIG. 4 is a sectional front view showing a third embodiment of the loader hopper according to the present invention. Next, a loader hopper according to a third embodiment will be described with reference to FIG. In the description of the loader hopper of the third embodiment, the same members as those of the loader hopper of the first embodiment are denoted by the same reference numerals, and the detailed description thereof will be omitted.

In the loader hopper 1 of the third embodiment, the first
As in the loader hopper 1 of the embodiment, a supply port 15 is opened at the lowermost portion at the center of the lower throttle section 8.
The outlet 21 is not opened on the side of the lower throttle section 8. That is, a supply pipe 33 is connected to the supply port 15, and the supply pipe 33 is provided on the upstream side (lower side) of the supply direction of the material with respect to the supply port 15 for supplying the material. 34 and a discharge pipe 3 for discharging the material
5 and branching. That is, this supply pipe 33
The branch portion 3 is formed so as to hang from the lower throttle portion 8.
At 6, it is branched into a discharge pipe 35 that hangs as it is and a supply pipe main body 34 that extends in a substantially horizontal direction. The lower end of the discharge pipe 35 is connected to the processing device 2.

Therefore, when mixing and stirring the materials in the hopper main body 3, the materials are not supplied to the processing apparatus 2. On the other hand, when the mixing and stirring are completed, the materials falling by their own weight are discharged from the supply port 15. It is supplied to the processing device 2 via the pipe 35. Therefore, in the loader hopper 1 of the third embodiment, the operation of the suction blower 13 is stopped without providing the discharge port 21 separately.
The agitated and mixed material is discharged from the supply port 15 using the supply port 15 as a discharge port, and the material is discharged by a simple configuration without the discharge port 21. .

FIG. 5 is a sectional front view showing a loader hopper according to a fourth embodiment of the present invention. Next, a loader hopper according to a fourth embodiment will be described with reference to FIG. In the description of the loader hopper of the fourth embodiment, the same members as those of the loader hopper of the third embodiment are denoted by the same reference numerals, and the detailed description thereof will be omitted.

In the loader hopper 1 of the fourth embodiment, the third
Similarly to the loader hopper 1 of the embodiment, the discharge port 21 is not opened at the side of the lower throttle section 8, and only the supply port 15 is opened at the lowermost part of the center of the lower throttle section 8. Further, a supply pipe 33 is connected to the supply port 15, and the supply pipe 33 is a supply pipe for supplying the material on the upstream side (lower side) in the material supply direction with respect to the supply port 15. It is branched into a main body 34 and a discharge pipe 35 for discharging the material. That is, the supply pipe 33 is formed so as to hang down from the lower throttle portion 8, and is branched at a branch portion 36 into a discharge pipe 35 that hangs down as it is and a supply pipe main body 34 that extends obliquely downward. The lower end of the discharge pipe 35 is connected to the processing apparatus 2, and is located below an intersection 36 a between both central axes 34 a, 35 a formed by a center line 34 a of the supply pipe main body 34 and a center line 35 a of the discharge pipe 35. Angle θ
It is less than 90 °. Here, the angle θ is preferably 15 ° or more, and more preferably 30 ° or more. The angle θ is preferably equal to or less than 80 °, and more preferably equal to or less than 60 °.

Therefore, when the inside of the hopper body 3 is sucked by the suction blower 13, the center line 35
The material is smoothly supplied into the hopper main body 3 from the supply pipe main body 34 inclined more than a. Therefore, this fourth
In the loader hopper 1 of the embodiment, the material can be smoothly supplied. By stopping the operation of the suction blower 13, the material can be dropped by its own weight and supplied to the processing apparatus 2 from the supply port 15 through the discharge pipe 35.

FIG. 6 is a sectional front view showing a fifth embodiment of the loader hopper according to the present invention. Next, a loader hopper according to a fifth embodiment will be described with reference to FIG. In the description of the loader hopper of the fifth embodiment, the same members as those of the loader hopper of the first embodiment are denoted by the same reference numerals, and the detailed description thereof will be omitted.

The loader hopper 1 of the fifth embodiment is provided with a cylindrical guide hopper 41 which covers the supply port 15 and has a discharge portion 42 below. The supply pipe 43 connected to the supply port 15 is provided to pass through the guide hopper 41. In the supply pipe 43, a gap 44 for discharging the material from the supply pipe 43 is formed in the guide hopper 41 so as to open downward. Supply pipe 43
Is provided with a supply pipe main body 45 penetrating the guide hopper 41 and a curved pipe 46 provided in the guide hopper 41 and connected to the supply port 15. At the connection portion where the tube 46 is connected, the curved tube 46 is formed to have a larger diameter, and the opening portion of the large-diameter curved tube 46 is exposed to the lower side, whereby the gap portion 44 is formed. ing. The guide hopper 41 is airtightly attached to the supply pipe main body 45 and the hopper main body 3, and the lower part of the guide hopper 41 is formed in a throttle shape, and the discharge part 42 is formed with an opening at the lowermost part. ing. The discharge unit 42 includes the processing device 2
Is connected.

Thus, when the inside of the hopper body 3 is sucked by the suction blower 13, the material is supplied to the supply pipe body 4.
5 is smoothly conveyed from the supply port 15 into the hopper body 3 while being supplied from the supply port 15 into the hopper main body 3, when the operation of the suction blower 13 is stopped, the material falls by its own weight and drops from the supply port 15. Through the curved tube 46, it falls into the guide hopper 41 from the gap portion 44. The material that has fallen into the guide hopper 41 is supplied to the processing device 2 from the discharge unit 42. Therefore, in the loader hopper 1 of the fifth embodiment, the material can be smoothly supplied from the supply pipe main body 45 into the hopper main body 3 through the curved pipe 46 and the supply port 15, and the suction blower is used. By stopping the operation of 13, the material is dropped by its own weight,
From the supply port 15, it can be smoothly supplied to the processing apparatus 2 via the curved pipe 43, the guide hopper 41 and the discharge section 42.

The present invention is not limited to the above embodiments, and may be appropriately designed and changed within the scope of the present invention.

That is, the guide means in the present invention is not limited to those of the above-described embodiments, but may be any cylindrical means as long as it can guide the material in the hopper main body 3 by the air flow. The present invention is not limited to the guide member 25 having the shape of a letter. For example, the guide member 25 may be composed of a plurality of plate members arranged in the circumferential direction, or the guide member 25 may be composed of a cylindrical member having a polygonal cross section. In particular, when the cross section of the hopper body 3 is polygonal, it is preferable to use the guide member 25 whose cross section is substantially similar. Further, the guide member 25 is positioned so that the center axis of the guide member 25 and the center axis of the hopper body 3 substantially coincide with each other.
Is preferably arranged.

Further, even when the guide member 25 is formed of a cylindrical member such as a cylindrical member, a through hole or the like communicating the outside and the inside thereof may be formed in the cylindrical member. In the case where the guide member 25 is formed of a cylindrical member, the cross-sectional shape is not limited to the same in the axial direction. For example, as shown in FIG. The diameter may be reduced, or the diameter may be reduced inward at the end on the supply port 15 side.

Further, in each of the embodiments described above, a case where a plurality of materials are mixed has been described. However, for example, one material may be stirred and mixed to separate the material and dust.

In each of the above embodiments, the suction port 1
2. Filter 1 that blocks the passage of material with a certain particle size or more
Although the filter 1 is provided, the filter 11 is not limited to a punching filter, and may be configured such that, for example, a large number of contact plates are arranged in an inclined manner. In each of the above-described embodiments, the hopper main body 3 is connected to the upper throttle section 6 and the pipe section 7.
Although it was formed by the lower draw portion 8, the shape is not particularly limited. In addition, the gas sucked by the suction blower 13 is not limited to air, and may be appropriately selected depending on the purpose and application, such as nitrogen gas. Further, the processing device 2 is not limited to a molding machine,
A dryer, a storage tank, and the like according to the purpose and use thereof are appropriately selected. Further, the material is preferably a granular material, but is not limited to plastic pellets, and may be any material such as ceramic particles.

[0059]

As described above, according to the first aspect of the present invention, the material supplied into the hopper body is sufficiently agitated and mixed with the flow of gas by the guide by the guide means. Therefore, it is possible to efficiently perform the separation of the dust and the mixing of the granular material.

According to the second aspect of the present invention, the material supplied into the hopper body is stirred while flowing in the hopper body so as to circulate along the guide member.
Therefore, with a simple configuration, the material can be efficiently stirred and mixed by being put on the flow of the air current.

According to the third aspect of the present invention, the material supplied into the hopper body is agitated while circulating and flowing along the guide member so as to repeatedly rise and fall along the guide member. . Therefore, with a simple configuration, the material can be more efficiently stirred and mixed by being put on the flow of the air current.

According to the fourth aspect of the present invention, by operating the suction-type pneumatic source to suck the inside of the hopper body,
The material is supplied from the supply port into the hopper body, and even during the stirring and mixing by the airflow, the stirred and mixed material can be discharged from the discharge port formed separately from the supply port. it can. Therefore, with a simple configuration, continuous mixing and discharging of the material can be performed, and the efficiency of the processing can be improved.

According to the fifth aspect of the present invention, when the operation of the suction-type pneumatic power source is stopped, the agitated and mixed material can be discharged from the supply port. Therefore, the material can be discharged with a simple configuration.

According to the sixth aspect of the present invention, the material can be supplied from the supply pipe main body into the hopper main body through the supply port, and the agitated and mixed material can be discharged through the supply port. Can be drained from the tube. for that reason,
With a simple configuration, material can be supplied and discharged.

According to the seventh aspect of the present invention, it is possible to prevent gas from flowing into the hopper body from the discharge port when the suction-type pneumatic power source is operated, without providing an on-off valve or the like. The material can be reliably supplied into the hopper body.

According to the eighth aspect of the present invention, by stopping the operation of the suction-type pneumatic power source, the agitated and mixed material is discharged from the supply port to the supply pipe, and thereafter, from the gap of the supply pipe. It falls into the guide hopper and is further discharged from its discharge part. Therefore, the material mixed and stirred can be reliably discharged with a simple configuration.

[Brief description of the drawings]

FIG. 1 is a sectional front view showing a first embodiment of a loader hopper according to the present invention.

FIG. 2 is a schematic explanatory view showing an overall configuration of a pneumatic transport device using the loader hopper of the first embodiment.

FIG. 3 is a sectional front view showing a second embodiment of a loader hopper according to the present invention.

FIG. 4 is a sectional front view showing a third embodiment of the loader hopper according to the present invention.

FIG. 5 is a sectional front view showing a loader hopper according to a fourth embodiment of the present invention.

FIG. 6 is a sectional front view showing a loader hopper according to a fifth embodiment of the present invention.

FIG. 7 is a sectional front view showing another embodiment of the loader hopper of the present invention.

[Explanation of symbols]

 REFERENCE SIGNS LIST 1 loader hopper 2 processing device 3 hopper main body 4, 28, 33, 43 supply pipe 5 suction pipe 12 suction port 13 suction blower 15 supply port 21 discharge port 22, 30, 35 discharge pipe 25 guide member 29, 34 supply pipe main body 41 guide Hopper 42 Ejector 44 Gap

 ──────────────────────────────────────────────────の Continuing from the front page (72) Inventor Yoshimi Fukuda 501-17 Fukushima Miyano-mae, Mita-shi, Hyogo F-term in Kawata-Mita Plant (reference) 4F201 AC01 BA01 BA06 BC02 BC12 BC15 BK02 BK04 BQ04 BQ08 BQ18 BQ40 BQ45 BQ53 4G035 AB49 AC53 AE13 4G036 AC15

Claims (8)

[Claims] A hopper body formed with a supply port to which a supply pipe for supplying a material is connected, and a suction port to which a suction pipe for sucking gas by a suction type pneumatic source are formed; In a loader hopper configured so that the material supplied from the supply port is agitated in the hopper body by suction by the suction-type pneumatic source, the guide for guiding the material supplied into the hopper body is provided. A loader hopper comprising a guide means. 2. The loader hopper according to claim 1, wherein said guide means comprises a guide member provided from said supply port toward said suction port. 3. The loader hopper according to claim 2, wherein the supply port is formed at a bottom of the hopper main body, and the suction port is formed at an upper part of the hopper main body. 4. The loader hopper according to claim 1, wherein a discharge port for discharging the material is formed separately from the supply port in the hopper body. 5. The apparatus according to claim 1, wherein the supply port also serves as a discharge port for discharging the material.
A loader hopper according to any one of the above. 6. A method according to claim 1, wherein the supply pipe is branched into a supply pipe main body for supplying the material and a discharge pipe for discharging the material on the upstream side of the supply port in the material supply direction. The loader hopper according to claim 5, characterized in that: 7. The loader hopper according to claim 4, wherein said discharge port is connected to an airtight material storage means. 8. A guide hopper which covers the supply port and has a discharge portion below, wherein the supply pipe is provided so as to penetrate the guide hopper, and the supply pipe is provided in the guide hopper. 6. The loader hopper according to claim 5, wherein a gap for discharging the material from the opening is opened.