JP2002248607A - Apparatus for storing and discharging chip - Google Patents

Abstract

PROBLEM TO BE SOLVED: To smoothly discharge a bulky raw chip which is apt to get entangled in a storing room. SOLUTION: An opposed inclined wall 4 is provided in a width direction of a storing room, a chip dropping opening 6 is opened to a part of a bottom part 5, and two pieces of parallel extrusion screw 8 with an agitator are supported by a shaft along a longitudinal direction of a bottom surface 5 of the storing room so that the agitator 10 is positioned above the dropping opening to constitute the storing room 3. Besides, a chip transfer conveyor is provided at a specific clearance just below the dropping opening. Further, a returning opening 17 and a rotor 15 with a claw for weighing up are provided in a rear part of the storing room.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an accommodating / discharging apparatus capable of accommodating or transporting a large amount of raw chip material generated at a tree cutting site or the like and smoothly discharging the same.

[0002]

2. Description of the Related Art The present inventors provided a strip-shaped chip discharge port at the center of the longitudinal bottom of a chip accommodating chamber, a chip scraping chain along the discharge port, and a rotary agitator above the discharge port. Proposal of a chip spreader (Japanese Patent Application No. 2
000-65870), this device can discharge the stored dried chips and waste chips, but it has been difficult to discharge the raw chips smoothly. That is, coarse raw chips directly produced from a tree by a high-strength rotating bit are entangled with each other during transportation or in a storage room due to irregular shapes and small protrusions in the tapered portion, making it difficult to discharge. .

[0003]

SUMMARY OF THE INVENTION The present invention provides a storage and discharge device which can smoothly transfer and discharge such raw chips even after storing them for a long period of time, and which can be mounted on a chip spreading vehicle. .

[0004]

The apparatus of the present invention comprises a chip accommodating chamber and a transfer conveyor. The accommodating chamber has an inclined wall facing in the width direction, and a chip drop opening is formed in a part of the bottom.
An extrusion screw with an agitator is axially supported along the longitudinal direction of the bottom surface, and the agitator of the extrusion screw is provided so as to be located above the chip drop port, and a chip transfer conveyor is provided immediately below the drop port at a predetermined interval. It is preferable that each screw portion is disposed in a semicircular groove provided at the bottom portion, and further, in the case of a large accommodation room, the screw portions are disposed to face each other with an agitator interposed therebetween. You can also. Further, the direction of transfer by the chip transfer conveyor is arbitrary, but it is preferable to provide a claw rotor that rotates in the reverse direction above the downstream side of the chip transfer conveyor to equalize the amount of chips that are likely to be unevenly distributed in the width direction of the conveyor. The fluidity of the chips is improved by providing a plurality of extrusion screws with agitators in parallel and rotating them in opposition.

In the apparatus of the present invention, the screw shaft, the rotor with claws, and the conveyor are driven separately, but it is difficult to control the amount of discharged chips only by the rotation speed of the extrusion screw. For this reason, the chip transfer conveyor below the storage chamber is installed along the screw axis, and the chip return port is provided at the bottom of the storage chamber near the rotor with the reversing claw. It is possible to stabilize the amount of chips supplied to the shredder and the like by refluxing. The device according to the invention can be used both as a fixed installation device and as a mobile device.

[0006]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, a case will be described in which an apparatus having two screws arranged in parallel is mounted on a chip spreading vehicle. In the figure, 1 is a chip dispersing vehicle by a large vehicle, 2 is a power room for pressurized oil or pressurized air, 3 is a storage room, 4 is a facing inclined wall, 5
Is a bottom portion, a drop port 6 is provided in a part of the bottom portion, and two parallel arc-shaped grooves 7 reaching the side ends of the drop port are provided in other portions. 6A is a slide plate for regulating the amount of drop, 7A
Is a partition. The extrusion screw 8 is located in each of the arc-shaped grooves 7, and the pair of screw rotation shafts 9 are rotated by being opposed to the hydraulic motor M <b> 1 by the transmission means. Reference numeral 10 denotes an agitator provided on the rotating shaft above the drop opening.

[0007] Reference numeral 11 denotes a transfer chain conveyor provided with a plate-shaped protruding piece 12 provided in parallel with the rotating shaft 9 below the drop port, and is driven by sprockets 13 and 14. 15 is
The rotor with claws provided above the driving sprocket 13 has a large number of claws 16 protruding from the rotor surface and rotates in a direction to return the transfer chip. Reference numeral 17 denotes a chip return port provided at the bottom of the storage chamber near the rotor with claws, and returns the chips flipped up by the claws to the rear of the extrusion screw.

Reference numeral 20 denotes a chip shredding and discharging device, in which a rotary drum 23 having an inclined cutting blade 22
The bottom 24 of the cylindrical casing is communicated with a discharge duct 25. Reference numeral 26 denotes a band-shaped chip receiving opening opened at the upper part of the casing. A pressurized air source (not shown) is connected to the upstream side 27 of the discharge duct,
A spray hose 29 is connected to 8.

FIG. 6 shows a state in which the chips T are accommodated or transported by the above-mentioned apparatus. In this state, both the conveyor 11 and the claw rotor 15 are stopped. There is no risk of falling into the shredding device 20. When the screw shaft 9 and the chain conveyor 11 are driven at the spraying location, the chips T above the drop port 6 are stirred by the agitator 10 and unraveled while being unraveled.
1 and is transported. At the initial stage of discharging, the amount of chips falling tends to increase, and chips accumulate on the conveyor. The accumulated chips are directed toward the falling port or inside the return port 17, that is, jumped up to the rear of the screw 8 by the rotating claws 16 of the rotor 15 rotating in conjunction with the chain conveyor. Since the chips around the screw shaft are always sent forward, the returned chips that have been flipped up are sent out again by the screws. When the amount of chips in the storage chamber is reduced as shown in FIG. 8, there are no chips remaining on the conveyor, but chips that are sometimes transferred in a lump are returned to the conveyor or to the storage chamber in the same manner as described above. When there are no lump chips on the conveyor, a cavity is formed at the back of the screw shaft or the return port, and the upper chip collapses, or a new chip is inserted as shown in FIG. 9 and the chip falls from the return port. However, the claw 16 is immediately returned to the accommodation room by the rotating claw 16.

[0010]

According to the apparatus of the present invention, the pushing screw supported near the bottom of the storage chamber reduces the accumulation load of the chips, and cooperates with the agitator provided above the drop port and the chain conveyor provided below the drop port. Even if the chips being transported are somewhat compacted by the operation, the chips are released by the agitator and fall at the same time as the start, so that the conveyor is smoothly transported. Further, the claw rotor 15 and the return port 17 have the effect of keeping the chip discharge amount constant and also breaking up the lump chips on the conveyor.

[Brief description of the drawings]

FIG. 1 is a side view of a tip sprayer equipped with the device of the present invention.

FIG. 2 is a plan view of the same.

FIG. 3 is a sectional view of an accommodation chamber of a screw unit.

FIG. 4 is a rear view of the chip shredding device.

FIG. 5 is a configuration diagram of a main part of the storage device.

FIG. 6 is a state diagram when a chip is stored.

FIG. 7 is a diagram illustrating a situation at the start of discharge.

FIG. 8 is an explanatory diagram of the end of discharge.

FIG. 9 is an explanatory diagram at the time of chip supply.

FIG. 10 is a configuration diagram of a main part of an apparatus in which an extrusion screw is disposed opposite to the apparatus.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 3 Storage room 4 Opposed inclined wall 5 Bottom part 6 Drop port 7 Arc-shaped groove 8 Extrusion screw 9 Rotary shaft 10 Agitator 11 Conveyor 15 Claw rotor 17 Chip return port 20 Chip shredder 21 Cylindrical casing 23 Drum 25 Release duct

 ────────────────────────────────────────────────── ─── Continuing on the front page (72) Inventor Koji Shibuya 3-6-10, Seko, Fujieda-shi, Shizuoka F-term (reference) 2B241 DA12 DA32 DA36 DB03 3F075 AA07 BA01 CA06 CA09 CB12 CC03 CC05 CC09 CC24 CC29 DA03

Claims (6)

[Claims] 1. A chip drop port having an inclined wall facing in the width direction and opened at a part of a bottom portion, and an agitator of an extrusion screw with an agitator along a longitudinal direction on a bottom surface are located above the drop port. The chip storage and discharge device is configured such that the storage chamber is configured so as to be axially supported, and the chip transfer conveyor is provided at a predetermined interval immediately below the dropping port. 2. The chip storage and discharge device according to claim 1, wherein each screw portion of the extrusion screw with agitator is disposed in a semicircular groove along the longitudinal direction of the bottom surface of the storage chamber. 3. The chip storage and discharge device according to claim 1, wherein each screw portion of the extrusion screw with an agitator is provided to face each other across the agitator along a longitudinal direction of the bottom surface of the storage chamber. 4. The chip accommodating / discharging apparatus according to claim 1, wherein two extrusion screws with an agitator are provided in parallel. 5. The chip accommodating / discharging apparatus according to claim 1, wherein a chip transfer conveyor is disposed along the extrusion screw, and a claw rotor is provided above a front end side of the transfer conveyor. 6. The chip storage and discharge device according to claim 5, wherein a chip return port is provided at a bottom of the storage chamber near the claw rotor.