JPH0958841A - Agitating and feeding hopper for vegetation base material - Google Patents

Abstract

(57) 【Abstract】 PROBLEM TO BE SOLVED: To provide an agitation supply hopper provided with a screw feeder for agitating a vegetation base material and agitating a vegetation base material in a lower part of a hopper container having an opening on an upper surface and an ejection port on a lower surface. , So that it can be efficiently discharged with stirring. SOLUTION: The discharge port at the bottom of the hopper is provided at the axially intermediate portion of the screw feeder, and the screw feeder is oriented so as to transfer the vegetation base material from both axial ends of the screw feeder shaft toward the discharge port. Different screws are provided to carry the vegetation base material from both sides of the hopper to the middle outlet by the differently oriented screws.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a stirring and feeding hopper which stirs and loosens a vegetation base material used for a greening method such as a slope and discharges and feeds it to a belt conveyor.

[0002]

2. Description of the Related Art In a greening method such as a slope, seeds, a soil stabilizer for spraying, etc. are mixed with a vegetation base material (artificial soil, bark compost, etc.) and then sprayed on the slope with a spraying machine.

Since the vegetation base material is contained in a cloth bag and contains a large amount of water, it must be housed in a hopper, stirred and loosened, and then discharged.

In the conventional stirring and feeding hopper of this kind, as shown in, for example, JP-A-6-156743, a screw feeder is provided in the lower portion of the hopper so that the fed vegetation base material is discharged while being stirred. It is configured.

That is, as shown in FIGS. 4 and 5, the stirring and feeding hopper of Japanese Patent Laid-Open No. 6-156743 is a horizontal semicircular cylinder at the lower ends of a pair of inclined wall plates 2a and 2b forming a V shape of the hopper 1. A screw feeder 5 having a screw 4 is horizontally provided in the casing 3. A discharge port 6 is provided at one end of the cylindrical casing 3 in the horizontal direction. The screw feeder 5 is driven by a motor (not shown).

The vegetation base material introduced into the hopper 1 from above through the upper opening 1a is accumulated in the hopper 1, and is agitated by the screw 4 by the rotation of the screw feeder 5 and is unraveled as shown by the arrow. And is discharged onto the belt conveyor (not shown) from the discharge port 6 on one end side.

[0007]

However, because of the structure in which the vegetation base material is moved to one side by the screw feeder 5 as described above, only the portion near the discharge port 6 on one side of the hopper 1 is vegetated as shown in FIG. Substrate material is discharged one after another, the mountain becomes lower, the other side becomes higher, and the vegetation substrate material in the hopper 1 becomes unevenly distributed on one side.
The mountain-height part becomes lumpy due to the weight, and even if the screw feeder 5 rotates, a cavity is formed around it, and the vegetation base material is solidified on it, forming a so-called bridge state, and the screw feeder 5 idles and the vegetation base The phenomenon that the material is not sufficiently discharged often occurs.

Therefore, in addition to the screw feeder 5 inside the hopper 1, a plurality of stirring devices (not shown) for rotating the stirring blades are provided, or the inclined wall plates 2a and 2b are provided.
It was necessary to provide a vibrating device (not shown) for vibrating the, and the structure was remarkably complicated.

However, if the stirring blade is provided in this way,
Inconveniences such as unfastening the tightening string at the bottom of the bag hung by a crane above or opening the bottom and putting the vegetation base material into the hopper 1 entangled with the sagging blades or the bag that has cut open and drooped was there.

When the slanted wall plates 2a, 2b are vibrated by a vibrating device, the vegetation base material adhered to the upper portions of the slanted wall plates 2a, 2b falls downward, but the slanted wall plates 2a, 2b.
There is a disadvantage that the vegetation base material accumulated below the slab is vibrated to gradually increase the density, that is, cause clogging, and conversely solidify the vegetation base material.

Further, since the vegetation base material is treated by only one screw feeder 5, the vegetation base material covers the screw feeder 5 and falls, so that the sloped wall plate 2a,
There is no choice but to increase the inclination of 2b, which is why the hopper 1
The opening of the upper opening 1a becomes narrower, and the height must be increased in order to put a large amount of the vegetation base material, which makes the work difficult.

Further, since the height is high, the sloped wall plates 2a and 2b have a large inclination, and a separate stirring device (not shown) is provided inside, the hopper 1 can be operated by a person when removing clogging. It was extremely dangerous to fall inside. It is an object of the present invention to provide a stirring and feeding hopper that solves such problems.

[0013]

In order to achieve the above object, the invention according to claim 1 is such that a hopper is provided in a lower part of a hopper container having an upper surface opened and a lower surface provided with a discharge port while stirring a vegetation base material. In a stirring supply hopper provided with a screw feeder for transferring to a lower discharge port, the discharge port at the lower part of the hopper is provided at an axially intermediate portion of the screw feeder, and the vegetation base material is provided on the screw feeder shaft of the screw feeder shaft. It is characterized in that screws having different directions are provided so as to transfer from both ends in the direction toward the discharge port.

Therefore, since the vegetation base material in the hopper is transferred from both ends to the middle part, the vegetation base material is prevented from being unevenly distributed on one side of the hopper, so that the vegetation base material is piled up high on one side and the bridge phenomenon occurs. The vegetation base material is evenly conveyed to the center from both sides, and is efficiently agitated and discharged. Further, for this reason, it is not necessary to further provide a stirring device on the upper part of the hopper, and the structure is simplified.

Further, according to the second aspect of the present invention, since a plurality of screw feeders are provided in parallel, the processing capacity is increased, the inclination of the inclined guide wall of the hopper can be made small, and the upper opening of the hopper is opened. The opening of the part can be enlarged. For this reason, the height of the hopper can be reduced, and the work becomes easier. Also, the height is low, and since there is no special stirring device on the upper part of the hopper, the bag and the cord are not entangled, and the risk of a person falling inside is reduced.

According to the third aspect of the present invention, since the inclined guide wall is provided with the air ejection port, the vegetation base material and the vegetation base material that have adhered to the inclined guide wall are blown off by air and the screw feeder side. It can be efficiently discharged with stirring. Further, since the vegetation base material is blown off by the air, it does not become clogged unlike the vibration device.

Further, in the invention according to claim 4, since the inclined guide wall is curved in an arc shape, even if a person falls inward from the edge of the upper opening of the hopper, it does not fall directly onto the screw feeder. , Less dangerous.

[0018]

Embodiments of the present invention will be described below with reference to the drawings. 1 is a plan view of an embodiment of the present invention, FIG. 2 is a front view thereof, and FIG. 3 is a right side view thereof. In the figure, 11 is a hopper, which is supported by a stand 12. The hopper 11 includes a pair of inclined guide walls 13a and 13b whose lower half portions are curved in an arc shape, and inclined guide walls 13a and 13b.
Casing 14 connected to the lower end of b and having arcuate sides 14
And side walls 15 and 16 connected to both ends of the inclined guide walls 13a and 13b and the casing 14, respectively. At the middle portion of the casing 14 in the longitudinal direction, the discharge port 1
7 is provided, and a discharge chute 18 is provided below the discharge port 17.

Two parallel screw feeders 20a and 20b are housed in the casing 14, and both ends thereof are rotatably attached to the side walls 15 and 16. Gears 21a, 21 are provided at one end of the screw feeders 20a, 20b.
b is fixed, and the driving force of the motors 22a and 22b fixed to the horizontal member 12a of the gantry 12 is the chains 23a and 23a.
2, the left screw feeder 20a is rotated clockwise and the right screw feeder 20b is rotated counterclockwise in FIG.

As shown in FIG. 1, the screw feeder 20
a and 20b, the screws 24a and 24b and the screw 25a, whose directions are opposite to each other with the discharge port 17 as the center,
25b is provided, and the vegetation base material is transferred to the discharge port 17 side and the intermediate side of the screw feeders 20a and 20b at any position.

A plurality of air jets 26 are provided on the inclined guide walls 13a and 13b. From the air ejection port 26, air is intermittently ejected from an air tank (not shown) fixed to the gantry 12 via a pipe 27. A platform (not shown) on which a worker stands is attached to the side of the platform 12.

With such a structure, the hopper 11
The bag (not shown) hung by a crane (not shown) is opened from the upper opening 11a of the container, the vegetation base material is put thereinto, the motors 22a and 22b are driven, and the screw feeders 20a and 20b are shown in FIG. Rotate as indicated by the arrow. The vegetation base material falls along the inclined guide walls 13a and 13b, or directly onto the screw feeders 20a and 20b. Then, the screws 24a, 24b
Since the screws and the screws 25a and 25b are reversed in direction so as to transfer the vegetation base material from both ends in the axial direction toward the central outlet 17, the vegetation base material is indicated by an arrow in FIG. As described above, it is transferred to the central discharge port 17 while being stirred and loosened, and drops from the discharge chute 18 to the conveyor 30. In this way, since the vegetation base material in the hopper 11 is transferred from both ends to the middle part, the vegetation base material is not unevenly distributed on one side of the hopper 11, and thus the vegetation base material is piled up high on one side and the bridge phenomenon occurs. The vegetation base material is evenly conveyed to the center from both sides, and is efficiently agitated and discharged. Also,
Therefore, it is not necessary to further provide a stirring device on the upper part of the hopper 11, and the structure is simplified.

Since the two screw feeders 20a and 20b are provided in this manner, the discharge efficiency is increased, and further, the vegetation base material 17 is transferred toward the vegetation base material 17 and always between the two screw feeders 20a and 20b. Since it is transferred, it is agitated and transferred and discharged extremely efficiently. Also, 2
Since the book screw feeders 20a and 20b are provided,
The inclination of the inclined guide walls 13a and 13b of the hopper 11 can be reduced, and the opening of the upper opening 11a of the hopper 11 can be increased. For this reason, hopper 1
The height of 1 can be lowered, and the work becomes easier. Further, since the height becomes low and there is no special stirring device above the hopper 11, there is less danger even if a person falls inside.

Further, since the air jet ports 26 are provided in the inclined guide walls 13a and 13b, the inclined guide walls 13a and 13b
The vegetation base material adhered to 13b or the vegetation base material that is solidified can be dropped to the screw feeders 20a, 20b side by air and efficiently discharged by stirring.

Further, since the inclined guide walls 13a and 13b are curved in an arc shape, even if a person falls inward from the edge of the upper opening of the hopper 11, the screw feeders 20a and 2b are directly connected.
Since it does not fall above 0b, the danger is reduced.

The structure of the stirring and feeding hopper of the present invention is not limited to the structures shown in FIGS. 1 to 3, and for example, the number of screw feeders may be one, or three or more. A vibrating device for vibrating the inclined guide wall may be provided instead of the air jet.

[0027]

As described above, according to the present invention, the discharge port at the lower part of the hopper is provided at the intermediate portion in the axial direction of the screw feeder, and the vegetation base material is attached to the screw feeder from both ends in the axial direction of the screw feeder shaft. Since screws having different directions are provided so as to transfer to the discharge port direction, stirring and discharging can be performed extremely efficiently.

[Brief description of drawings]

FIG. 1 is a plan view of an embodiment of the present invention.

FIG. 2 is a front view of one embodiment of the present invention.

FIG. 3 is a left side view of the embodiment of the present invention.

FIG. 4 is a schematic left side view of a conventional device.

FIG. 5 is a front view of a conventional device.

[Explanation of symbols]

 11 Hopper 13a, 13b Inclined guide wall 14 Casing 17 Discharge port 20a, 20b Screw feeder 24a, 24b Screw 25a, 25b Screw 26 Air jet

Claims (4)

[Claims] 1. A stirring and feeding hopper provided with a screw feeder for transferring a vegetation base material to a discharge port at the lower part of the hopper while stirring the vegetation base material at the lower part in a hopper container having an upper surface opening and a discharge port at the lower surface. The discharge port of the screw feeder is provided at the intermediate portion in the axial direction of the screw feeder, and the screw feeder is provided with screws of different directions so as to transfer the vegetation base material from both axial ends of the screw feeder shaft toward the discharge port. A hopper for stirring and feeding vegetation base materials. 2. The agitating and supplying hopper for a vegetation base material according to claim 1, wherein a plurality of the screw feeders are provided in parallel. 3. The agitating and supplying hopper for a vegetation base material according to claim 1, wherein an air ejection port is provided on the inner surface of the inclined guide wall of the hopper container. 4. The agitating and feeding hopper for a vegetation base material according to claim 1, wherein the inclined guide wall is curved in an arc shape.