JPH09216734A - Device and method for discharging powder - Google Patents

Abstract

PROBLEM TO BE SOLVED: To certainly discharge a constant amount of powder, by forming a powder discharging device by the opening/closing member of a discharge opening, an upper scratching off member for powder received in the discharge opening and a raw material for elastically deforming a tip, and providing the tip in a manner that it is immersed in the discharge opening of a rotor. SOLUTION: Powder 31 supplied from a hopper 3 to a rotor 4, is received in the inside on a powder supplying part 4a by closing a discharge opening 45 by opening/closing means. The upper part of the powder 31 received in the discharge opening 45 is scratched off by a scratching off member 49 on a powder discharge part 4b side, and a constant amount of powder is secured in the discharge opening 45. The discharge opening 45 is opened by opening/ closing means, and also the elastically deforming tip 10a of a separating member 10 is immersed in the discharge opening part 45, then, powder 31 stuck in the discharge opening part 45 is separated from the discharge opening part 45. When the discharge opening part 45 from which the powder 31 is discharged, gradually closes its lower opening accompanied by the rotation of the rotor 4, and the lower opening is fully closed, it returns to a process for receiving powder therein, and continuously repeats its process.

Description

Detailed Description of the Invention

The present invention relates to a powder discharging device and a powder discharging method, and more particularly to a powder discharging device and a powder discharging method for separating powder adhering to a discharge opening.

[0002]

2. Description of the Related Art Conventionally, when packing powder in a bag, a filling machine which has to distribute and fill the powder in a certain amount has been known that "a discharge opening penetrating the bottom of a rotating body is closed by an opening / closing means. The powder is received in the discharge opening, the upper part of the powder received in the discharge opening is scraped by the scraping member, and then the discharge opening is opened by the opening / closing means to discharge a certain amount of the powder. There is a filling method called bull.

In this filling method, if the powder has a good fluidity, it does not cause much trouble.

[0004]

However, as the powder has hygroscopicity, and the smaller the particle is, the powder tends to adhere to the discharge opening, and the powder adheres to the discharge opening. Then, there is a fatal defect that the amount of the packaged powder varies.

In order to eliminate this drawback, the vicinity of the discharge opening is hit intermittently with a striking rod to remove the powder adhering to the discharge opening, and a certain effect is obtained, but the working environment is high in humidity. In the case of powder or the like having very small particles, there is a drawback that the powder adheres to the discharge opening and lacks certainty.

It is an object of the present invention to provide a powder discharging device and a powder discharging method which solve the above drawbacks.

[0007]

In order to achieve the above-mentioned object, a powder discharging apparatus of the present invention comprises a hopper for containing powder and a hopper which is positioned below the hopper and rotates and which is supplied from the hopper. A rotating body that receives the powder, a discharge opening that penetrates through the bottom of the rotating body, and an opening / closing member that opens and closes the discharge opening, and the upper portion of the powder received in the discharge opening is scraped off. A scraping member and at least a tip portion is made of a material that is elastically deformable, is provided so that the tip portion is immersed in the discharge opening portion of the rotating body that rotates, and the powder that adheres to the discharge opening portion is A separating member for separating from the discharge opening is provided.

Further, in the powder discharging method of the present invention, the discharging opening penetrating the bottom of the rotating body is closed by an opening / closing member to receive the powder in the discharging opening, and the upper portion of the powder received in the discharging opening. Is a scraping member, and then the discharge opening is opened by the opening and closing member to discharge a certain amount of the powder,
A powder receiving step of closing the discharge opening by the opening / closing member to receive the powder in the discharge opening, and an upper portion of the powder received in the discharge opening by the scraping member after the powder receiving step. And a step of opening the discharge opening by the opening / closing member and immersing the elastically deformable tip of the separating member in the discharge opening after the scraping step and adhering to the discharge opening. And a powder discharging step of separating the powder from the discharging opening.

Further, the powder discharging method of the present invention comprises a hopper for storing the powder and a hopper positioned below the hopper for rotation,
A rotating body that receives the powder supplied from the hopper, and a discharge opening that penetrates the bottom of the rotating body,
An opening / closing member that opens and closes the discharge opening, a scraping member that scrapes up the upper portion of the powder received in the discharge opening, and at least a tip of the rotating body that is made of a material that elastically deforms and rotates. A tipping member is provided so as to be immersed in the discharge opening, and a separating member for separating the powder adhering to the discharge opening from the discharge opening is provided, and the discharge opening is closed by the opening / closing member. A powder receiving step of receiving the powder in the discharge opening, and a scraping step of scraping an upper portion of the powder received in the discharge opening by the scraping member after the powder receiving step, and a scraping step of the scraping step. After that, the discharge opening is opened by the opening / closing member, and the elastically deformable tip of the separating member is immersed in the discharge opening and attached to the discharge opening. The serial powder is made of a powder discharge step of separating from the discharge opening.

[0010]

DESCRIPTION OF THE PREFERRED EMBODIMENTS A powder discharging device according to an embodiment of the present invention will be described with reference to the drawings.

In FIGS. 1 to 13, reference numeral 1 denotes a powder discharging device. The powder discharging device 1 supplies a predetermined amount of powder to a bag 2 which is automatically and sequentially manufactured, for example. This is a device for discharging powder.

The powder discharging apparatus 1 is generally provided with a hopper 3 for containing powder, and a rotating body 4 located below the hopper 3 for rotation and for receiving the powder supplied from the hopper 3.
It is composed of

In the bag 2, the material film 5 is vertically sealed by a vertical sealer into a tubular shape, and then the horizontal seal is provided by a horizontal sealer provided on a pair of left and right rotating rolls 6. To form a sealed structure. 7 is a guide roll, and 8
Is a supporting roll for supporting the material film 5.

The powder 31 accommodated in the hopper 3 is, for example, a powder of tea, yellow powder, sprinkles, ochazuke, ramen ingredients, or the like.

The rotating body 4 is, for example, a rotating disc 41 that rotates counterclockwise, and a wall 42 is provided upright on the outer periphery of the rotating disc 41. The rotating body 4 is a rotating shaft rotated by the motor 43.
Drive through 44.

At the bottom of the rotating body 4, there is a discharge opening 45 penetrating therethrough.
A plurality of (for example, four) are provided. This discharge opening
The 45 can be equipped with various measuring mass pieces so as to accommodate the discharged amount. 46 is one of the various mass pieces.

The lower opening of the discharge opening 45 is opened and closed by an opening / closing member 9. The opening / closing members 9 are provided so as to correspond to the number of discharge openings 45 (four in this embodiment), and the opening / closing members 9 are rotated by bolts 93 on the lower surface of the rotary disc 41 via washers 92, for example. The lid 91 is movably attached, and the first abutting member 94 and the second abutting member 95 attached to the fixed side that opens and closes the lid 91 (FIG. 5 (a),
(See (b) and (c)).

That is, in FIG. 5A, the discharge opening
The lower opening of 45 is closed by the lid 91, but as the rotator 4 rotates in the direction of the arrow (counterclockwise) shown in FIG. 5, the tip of the lid 91 abuts the first abutting member 94. The lower opening of the discharge opening 45 is sequentially opened (see FIG. 6), and in FIG. 7, the lower opening of the discharge opening 45 is fully opened.

Further, when the rotation of the rotary disk 41 continues, this time, conversely, the rear end of the lid 91 contacts the second contact member 95,
The lower opening of the discharge opening 45 is gradually closed (see FIG. 8).
7), the lower opening of the discharge opening 45 is fully closed (see FIG. 9).

On the other hand, above the inner side of the rotating body 4,
Partitioning the supply part 4a and the discharge part 4b of the powder 31 and discharging opening
The lower end of the scraping member 49 for scraping the upper portion of the powder 31 received by the 45 is provided parallel to the rotating disk 41 and at a constant interval. The scraping member 49 is attached to the column X via a support member Y.

Further, above the inside of the rotating body 4, above the discharge opening 45 which rotates and moves, the tip portion 10a of the separating member 10 stands by so as to sink into the discharge opening 45. Is provided. The spacing member 10 is supported by a column (not shown) via a support member 10b.

The spacing member 10 is, for example, a brush made of an elastically deformable material, and is provided on standby above the discharge opening 45 that rotates and moves. With the 45 open, the discharge opening
The powder 31 adhering to the discharge opening 45 can be separated from the discharge opening 45 by immersing the elastically deformable tip 10 a of the separating member 10 in the space 45.

That is, when the discharge opening 45 is closed by the opening / closing means 9 (FIGS. 10 and 13), the separating member
The tip portion 10a of 10 is in contact with the bottom of the rotating disc 41,
When the discharge opening 45 is opened by the opening / closing means 9, the elastically deformable tip portion 10a of the separating member 10 is immersed in the discharge opening 45 (FIG. 12).

Therefore, as shown in FIG. 3, the powder supplied from the hopper 3 to the rotating body 4 is placed inside the discharge opening 45 by closing the discharge opening 45 by the opening / closing means 9 on the side of the supply portion 4a of the powder 31. Accepted (powder receiving process).

After this powder receiving step, that is, the powder
In the discharging portion 4b of 31, the upper portion of the powder 31 received in the discharging opening portion 45 is scraped by the scraping member 49 (scraping step). As a result, a certain powder in the discharge opening 45
31 is secured (see FIGS. 5 and 10).

After this scraping step, the opening / closing means 9 opens the discharge opening 45 (see FIGS. 6, 7, and 11), and the tip 10a of the separating member 10 which is elastically deformed is immersed in the discharge opening 45. (See FIG. 12), the powder 31 that adheres to the discharge opening 45
Can be separated from the discharge opening 45 (powder discharge step).

In the discharge opening 45 from which the powder 31 has been discharged, the lower opening of the discharge opening 45 is sequentially closed with the rotation of the rotating body 4 (see FIG. 8) and is in a fully closed state (see FIGS. 9 and 13). Then, the process returns to the powder receiving step of receiving the powder 31 in the discharge opening 45, and the above-described steps are continuously performed.

The tip portion 10a of the separating member 10 may be the one shown in FIG. 12, but preferably, as shown in FIG.
It is better to provide it over the entire width of the discharge opening 45.

Further, the separating member 10 is not limited to a brush and may be the rubber 10 'shown in FIG. 15, but at least the tip end portion 10a of the separating member 10 may be formed of a material which is elastically deformable.

Further, since the tip end portion 10a of the spacing member 10 is formed of a material which is elastically deformable, when the tip end portion 10a of the spacing member 10 comes into contact with the bottom of the rotating disc 41 from the discharge opening 45, the spacing member 10a
The powder 31 adhering to the tip portion 10a of 10 is scattered in the direction opposite to the rotating direction of the rotating disk 41 to pollute the surroundings and to measure the amount of powder 31
However, as shown in FIGS. 2 and 15, a guide D may be provided so that the powder 31 may be directed to the bags 2 that are automatically and sequentially manufactured.

[0031]

The powder discharging device of the present invention includes a hopper for storing powder, a rotating body located below the hopper and rotating, and receiving the powder supplied from the hopper.
An opening / closing member that has a discharge opening that penetrates through the bottom of the rotating body and that opens and closes the discharge opening, and a scraping member that scrapes off the upper portion of the powder received in the discharge opening, at least, The tip is made of elastically deformable material,
Since the distal end portion is provided so as to be immersed in the discharge opening portion of the rotating rotating body, and the separating member for separating the powder adhering to the discharge opening portion from the discharge opening portion is provided, the powder is present in the discharge opening portion. Even if is attached, the tip of the separating member can be sunk into the discharge opening, and the powder attached to the discharge opening can be separated from the discharge opening, and a certain amount of powder can be reliably discharged. You can

Further, in the powder discharging method of the present invention, the discharging opening penetrating the bottom of the rotating body is closed by the opening / closing member to receive the powder in the discharging opening, and the upper portion of the powder received in the discharging opening. Is a scraping member, and then the discharge opening is opened by the opening and closing member to discharge a certain amount of the powder,
A powder receiving step of closing the discharge opening by the opening / closing member to receive the powder in the discharge opening, and an upper portion of the powder received in the discharge opening by the scraping member after the powder receiving step. And a step of opening the discharge opening by the opening / closing member and immersing the elastically deformable tip of the separating member in the discharge opening after the scraping step and adhering to the discharge opening. Since it comprises a powder discharging step of separating the powder from the discharge opening, even if the powder adheres to the discharge opening, the tip end of the separating member sinks into the discharge opening and adheres to the discharge opening. The powder can be separated from the discharge opening, and a certain amount of powder can be reliably discharged.

In the powder discharging method of the present invention, a hopper for storing the powder and a hopper located below the hopper and rotated,
A rotating body that receives the powder supplied from the hopper, and a discharge opening that penetrates the bottom of the rotating body,
An opening / closing member that opens and closes the discharge opening, a scraping member that scrapes up the upper portion of the powder received in the discharge opening, and at least a tip of the rotating body that is formed of a material that elastically deforms and rotates. A tipping member is provided so as to be immersed in the discharge opening, and a separating member for separating the powder adhering to the discharge opening from the discharge opening is provided, and the discharge opening is closed by the opening / closing member. A powder receiving step of receiving the powder in the discharge opening, and a scraping step of scraping an upper portion of the powder received in the discharge opening by the scraping member after the powder receiving step, and a scraping step of the scraping step. After that, the discharge opening is opened by the opening / closing member, and the elastically deformable tip of the separating member is immersed in the discharge opening and attached to the discharge opening. Since the powder discharge step of separating the powder from the discharge opening is performed, even if the powder adheres to the discharge opening, the tip of the separating member sinks into the discharge opening and adheres to the discharge opening. The powder thus formed can be separated from the discharge opening, and a certain amount of powder can be reliably discharged.

[Brief description of drawings]

FIG. 1 is a schematic front view of a powder discharging device according to an embodiment of the present invention.

FIG. 2 is a schematic cross-sectional view of the powder discharging device of FIG.

3 is a schematic cross-sectional view taken along the line AA of FIG.

4 is a schematic cross-sectional view taken along the line BB of FIG.

5 to 9 are explanatory views for schematically explaining the opening / closing operation of the discharge opening portion by the opening / closing means, and FIG.
It is an explanatory view explaining a state in which the discharge opening is closed,
FIG. 5 (b) is an explanatory view of the state in which the discharge opening is closed, as seen from the side surface side, and FIG. 5 (C) is rotatably attached to the lower surface of the rotating disk with a bolt through a washer. It is explanatory drawing explaining the structure of the covered lid.

FIG. 6 is an explanatory diagram illustrating a state in which a discharge opening is opening.

FIG. 7 is an explanatory diagram illustrating a state in which a discharge opening is fully opened.

FIG. 8 is an explanatory diagram illustrating a state in which the discharge opening is being closed.

FIG. 9 is an explanatory diagram illustrating a state in which the discharge opening is fully closed.

FIG. 10 to FIG. 13 are explanatory views for schematically explaining the relationship between the distal end portion of the separating member and the discharge opening portion,
It is an explanatory view of a state in which the tip of the separating member is waiting for the discharge opening, and is also an explanatory view corresponding to FIG.

11 is an explanatory view of a state in which the tip end portion of the separating member has started to sink into the discharge opening portion, and is also an explanatory view corresponding to FIG. 6;

FIG. 12 is an explanatory view of a state in which the tip end portion of the separating member is recessed in the discharge opening portion, and is also an explanatory view corresponding to FIG. 7.

FIG. 13 is an explanatory view of a state in which the tip end portion of the separating member is in contact with the bottom of the rotating disk, and is also an explanatory view corresponding to FIG. 9.

FIG. 14 is an explanatory view for schematically explaining a main part of another embodiment other than that shown in FIG.

FIG. 15 is an explanatory view for schematically explaining a main part of another embodiment other than that shown in FIG.

[Explanation of symbols]

 1 powder discharging device 3 hopper 4 rotating body 9 opening / closing member 10 separating member 31 powder 45 discharging opening 49 scraping member

Claims (3)

[Claims] 1. A hopper for accommodating powder, a rotator positioned below the hopper and rotating to receive the powder supplied from the hopper, and a discharge opening penetrating the bottom of the rotator. An opening / closing member that opens and closes the discharge opening, a scraping member that scrapes the upper portion of the powder received in the discharge opening, and at least the tip is formed of a material that elastically deforms and rotates. A powder discharging device, characterized in that the distal end portion is provided so as to be immersed in the discharge opening portion of the rotating body, and a separating member for separating the powder adhering to the discharge opening portion from the discharge opening portion is provided. . 2. A discharge opening penetrating the bottom of the rotating body is closed by an opening / closing member to receive powder in the discharge opening, and an upper portion of the powder received in the discharge opening is scraped by a scraping member, A powder discharging method for discharging a certain amount of the powder by opening the discharge opening with the opening / closing member, wherein the powder receiving method receives the powder in the discharge opening by closing the discharge opening with the opening / closing member. A step of scraping the upper part of the powder received in the discharge opening by the scraping member after the powder receiving step, and the discharge opening by the opening / closing member after the scraping step And the tip of the separating member elastically deformed is immersed in the discharge opening, and the powder adhering to the discharge opening is separated from the discharge opening. Powder discharge method characterized by comprising a powder discharge step of. 3. A hopper for accommodating the powder, a rotating body positioned below the hopper and rotating to receive the powder supplied from the hopper, and a discharge opening penetrating the bottom of the rotating body. An opening / closing member that opens and closes the discharge opening, a scraping member that scrapes the upper portion of the powder received in the discharge opening, and at least the tip is formed of a material that elastically deforms and rotates. The discharge opening of the rotating body is provided so that the tip portion is immersed, and a separating member that separates the powder adhering to the discharge opening from the discharge opening is provided, and the discharge opening is formed by the opening / closing member. And a powder receiving step for receiving the powder in the discharge opening, and an upper portion of the powder received in the discharge opening by the scraping member after the powder receiving step. After the scraping step, the opening and closing member opens the discharge opening, and the elastically deformable tip of the separating member is immersed in the discharge opening and adheres to the discharge opening. And a powder discharging step of separating the powder from the discharge opening.