JP3315071B2 - Paper powder feeder - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an apparatus for supplying paper dust for quantitatively transferring paper dust and the like generated in the production of paper products by an air flow.

[0002]

2. Description of the Related Art It is desired that the above-mentioned papers be reused. Therefore, together with paper dust generated during the manufacturing process, residual materials, scraps, waste paper, and the like are crushed into paper dust, which is then air-flowed. Means of transferring to the process have been attempted.

[0003]

However, in the case where the above-mentioned paper powder is mixed in a next step with, for example, another material at a fixed ratio,
Although quantitative supply is desired, paper powder has a low bulk density, is algae-like, and has low fluidity. For this reason, there are problems such as difficulty in quantitative transfer. In view of the above, an object of the present invention is to effectively mix the above-mentioned paper dust and transport air to ensure a constant transport.

[0004]

According to a first aspect of the present invention, there is provided a paper dust supply apparatus, comprising: an outlet for discharging paper dust at an appropriate position on a bottom plate of a bottomed storage tank for storing paper dust. The discharge port is connected to an intake blower, and a stirring blade is provided in the tank. The paper powder supplied into the tank is stirred and discharged sequentially from the discharge port. And an adjusting plate for adjusting the discharge flow rate of the paper dust is mounted on the upper part of the outlet so as to adjust the interval between the outlet and the outlet.

In the present invention having the above structure, the paper dust is discharged with the suction of the outside air by opening the suction pipe for the outside air in the vicinity of the discharge port formed in the tank bottom plate. At this time, an adjustment plate for adjusting the discharge flow rate of the paper dust is adjustably mounted above the discharge port, so that the amount of the discharged paper dust can be adjusted.

According to a second aspect of the present invention, the lower opening of the suction pipe is connected to the upper opening through an intermediate portion attached to the outside along the tank side wall, and the upper opening is directed downward to the upper part of the tank. And a suction port for scattered paper dust.

According to the present invention having the above structure, the powder of the paper dust scattered from the tank can be sucked to prevent the scatter.

According to a third aspect of the present invention, the stirring tank in the storage tank has at least two upper and lower stirring blades, the upper stirring blade is a crushing blade for storing the paper dust, and the lower blade pushes the paper dust in the outer peripheral direction. It is characterized in that the front surface is bent in an arc shape as much as possible.

In the present invention having the above structure, the paper dust in the tank is broken up by the upper stirring blades. Then, the lower paper dust is pushed outward by the lower stirring blade, and the transfer to the discharge port is performed well.

[0010]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below based on an embodiment shown in the drawings. In the figure, a paper powder supply device 1 forms a discharge port 3 at a suitable position, preferably as far as possible, on a bottom plate 2a of a bottomed tank 2, and the discharge port 3 is formed through a discharge pipe 4. It is connected to the discharge fan 5. The tank 2 includes a stirring blade 6, a suction pipe 7 for outside air, and a discharge port adjusting plate 8. The discharge fan 5 is a blower that does not cause the paper dust in the transport airflow to be caught or clogged. If it is necessary to disintegrate the paper powder more finely, a passage-type blower may be used.

The stirring blade 6 includes at least two upper and lower stirring blades (chosen as appropriate according to the depth of the tank, three in the illustrated example) and a lower blade 12. However, upper blade 1
0 and the intermediate blade 11 are blades for crushing paper dust in the tank, and have a normal blade shape or a crushing projection 10a;
A plurality of protrusions 11a are formed. The lowermost blade 12
Is an extruded blade that pushes out the paper dust,
An extruded surface 12a is formed in which the rotating front surface has an arcuate curved surface. In the drawing, M indicates a drive motor of the stirring blade 6.

The outside air suction pipe 7 has a lower portion connected to the discharge port 3.
, An upper opening 14 located above the upper tank, and a connecting portion 15 outside the tank and connecting the two. However, the opening 13
Is located above the pushing blade 12 and bends downward to open. The upper opening 14 is located at an appropriate position on the upper surface of the tank 2, is similarly bent downward, and opens to the tank side. Although only one upper opening is shown in the figure, a plurality of openings may be provided according to the processing amount.

The discharge port adjusting plate 8 has an arc larger than the diameter of the hole of the discharge port 3 and is located above the lower blade 12 so as to be able to adjust the distance between the lower blade 12 and the lower blade 12.

Reference numeral 16 denotes a suction air volume adjusting plate for adjusting a passage area of the discharge pipe 4 and appropriately selecting a suction air volume.
It is attached to an appropriate position of the discharge pipe 4 so as to be movable back and forth.

In the above configuration, the paper dust supplied into the tank 2 is sucked out of the outlet 3 formed in the bottom plate 2a by the suction action of the discharge fan 5, and is sent out. At this time, the lump of paper dust is disintegrated by the upper blade 10 and the intermediate blade 11 of the stirring blade 5, and the paper powder located at the center of the tank is pushed outward by the lower blade 12 and moves to the discharge port 3 side. At this time, the outside air is sucked from the suction pipe 7, and the paper dust is sent out from the outlet 3 accordingly. Note that the delivery amount at this time is adjusted by moving the outlet adjustment plate 8 up and down.

The amount of suction of the discharge fan is adjusted by a suction air amount adjusting plate 16. Thus, a uniform amount of paper powder can always be sent out without clogging at the discharge port.

[0017]

As described above, according to the present invention, the light and easily lumpable paper powder is broken by the stirring blades in the tank, so that the lump is prevented from clumping and the discharge amount is adjusted by adjusting the discharge port. The distance is adjusted to a predetermined amount by adjusting the distance from the outlet with the plate, and a uniform amount of air can always be transferred from the outlet along with the amount of air sucked from the suction pipe.

[Brief description of the drawings]

FIG. 1 is a longitudinal sectional view of a paper powder supply device of the present invention.

FIG. 2 is a plan view of the tank in FIG.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Paper powder supply apparatus 2 Tank 3 Discharge port 4 Discharge pipe 5 Discharge fan 6 Stirrer blade 7 Suction pipe 8 Discharge port adjusting plate 10 Crushing blade 11 Crushing blade 12 Pushing blade

──────────────────────────────────────────────────続 き Continued on the front page (58) Field surveyed (Int. Cl. ⁷ , DB name) B65G 53/00-53/28 B65G 53/32-53/66 B65G 65/30-65/48

Claims (3)

(57) [Claims] An outlet for the paper dust is formed at an appropriate position of a bottom plate of a storage tank having a bottom for storing the paper dust, the outlet is connected to an intake blower, and the tank is provided with a stirring blade. The paper dust supplied into the inside is agitated and sequentially discharged from a discharge port, and an external air suction pipe is opened in close proximity to the discharge port, and a discharge flow rate of the paper powder is adjusted above the discharge port. A paper powder supply device, characterized in that an adjusting plate to be mounted is attached to a discharge port so as to adjust the distance therebetween. 2. A lower opening of the suction pipe is connected to an upper opening through an intermediate portion attached to the outside along the tank side wall, and the upper opening opens downward to the upper part of the tank. 2. The paper dust supply device according to claim 1, wherein the suction port is used to suck scattered paper dust. 3. The stirring blade in the storage tank has at least two upper and lower stirring blades, the upper stirring blade is a crushing blade for storing the paper dust, and the lower blade is bent in an arc shape at the front to extrude the paper dust in the outer peripheral direction. The paper powder supply device according to claim 1, wherein the paper powder supply device is formed.