JP2939928B2 - Spraying fiber material supply device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an improvement of a spray fiber material supply apparatus used in a spraying work for forming a fire-resistant coating layer on a steel frame of a building or a structure, and more particularly to an improvement in a construction site. The present invention relates to a spray fiber material supply apparatus suitable for smoothly supplying a wet fiber material such as collected cotton shed.

[0002]

2. Description of the Related Art Conventionally, supply devices having various structures have been developed as a supply device of this type of spraying fiber material.
For example, in the supply device 1 shown in FIG. 4, the defibrating member 4 is disposed above the screw conveyor 3 disposed near the bottom of the hopper 2, and the rotary stirring member 5 is disposed above the deflecting member 4. And a vibration exciter 6 is arranged outside the hopper 2 (Japanese Utility Model Publication No. 63-63).
No. 18451).

[0003] The supply device 1 can prevent the bridging phenomenon of the fiber material accommodated in the hopper 2 from occurring by the synergistic action of the stirring action of the rotary stirring member 5 and the vibration action of the vibrator 6. The fiber material is allowed to settle smoothly, and the thickness of the refractory coating layer can be made uniform by the sprayer.

[0004]

In recent years, from the viewpoint of reusing industrial waste, attempts have been made to recover and reuse cotton wool generated at a spraying construction site. I have. Most of the collected cotton wool is in a wet state, and when such a wet state of the fiber material is supplied using the supply device 1, unlike the case of a normal dry state of the fiber material, it is sufficient. The effect of preventing a bridging phenomenon cannot be obtained, and the fiber material stays in the vicinity of the side wall 7 of the hopper 2, so that there is a problem that a smooth supply cannot be performed.

The present invention has been made in view of the above-mentioned problems, and even when the present invention is used for supplying a wet fibrous material such as sprayed cotton collected at a construction site, it is possible to surely prevent the occurrence of a bridge phenomenon. It is a primary object to provide a supply device for a sprayable fiber material that can be prevented.

[0006]

According to a first aspect of the present invention, a screw conveyor is disposed near a bottom of a hopper, and a defibrating member is disposed above the screw conveyor. In the supply device of the fiber material for attachment, a scraping body reciprocating along the side wall of the hopper is disposed above the defibrating member.

According to a second aspect of the present invention, the scraping bodies are fixed to the respective ends of the left and right main frames supported by the rotating shaft in an upright manner.
The third embodiment is characterized in that a scraping plate is provided between the upper and lower ends of the auxiliary frame.
Invention, a disk provided at the end of the rotation axis of the scraping body,
It is characterized in that a connecting rod is used to connect a crank provided at the end of the rotating shaft of the cotton-removing member.

[0008]

According to the present invention, the cotton litter collected at the construction site is put into the hopper, and the cotton litter remaining on the side wall of the hopper is scraped off by the reciprocating scraping body, and the cotton removing member at the lower part is removed. After being opened by the screw conveyor, it is discharged by the screw conveyor and opened by the opening member. Then, it is sent from a rotary feeder through a discharge port to a pressure feeding hose, and is sent in the nozzle direction of the sprayer. This makes it possible to smoothly supply the fiber material in a wet state such as cotton wool. Further, this scraping body has a simple configuration, and by connecting a disc provided at the end of the rotating shaft of the scraping body and a crank provided on the rotating shaft of the cotton removing member by a connecting rod,
The scraping body can reciprocate in conjunction with the rotation of the defibrating member.

[0009]

DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of a spray fiber material supply apparatus according to the present invention will be described below. FIG. 1 is a longitudinal sectional view of a supply device of the present invention, FIG. 2 is an enlarged sectional view of a main part of the supply device, and FIG. 3 is a perspective view of a scraping body.

The supply device 10 is mounted on a box-shaped trolley 11, and is configured to be able to be appropriately moved at a construction site by wheels 12, 12,.... Inside the box-shaped cart 11, a hopper 14 having an input port 13 for inputting a fiber material such as cotton shedding is disposed above. A screw conveyor 16 for transferring the fiber material to the discharge port 15 is provided near the bottom of the hopper 14, and a defibrating member 17 is provided above the screw conveyor.

As shown in the figure, the defibrating member 17 is
Are provided on the rotary shaft 20 so as to protrude from the pulley 21 at one end of the rotary shaft 20 and to one end of the rotary shaft 22 of the screw conveyor 16. The provided pulley 23 is connected via a belt or the like, and the screw conveyor 16 and the defibrating member 17
It is configured to rotate in the same rotation direction.

A scraper 25 reciprocating along the side walls 24 of the hopper 14 is disposed above the defibrating member 17. As shown in FIG. 3, this scraped body 25 is provided with auxiliary frames 27, 2 on each end of main frames 26, 26 arranged on the left and right.
Are fixed in an upright manner, and the auxiliary frame 27,
Are respectively provided between upper and lower ends of the main frames 27, and a rotating shaft 29 is provided at the center of the main frames 26, 26.

The scraping body 25 having the above-described structure uses a well-known crank mechanism between the rotating shafts 20 and 29 so as to reciprocate in conjunction with the rotation of the defibrating member 17. In the case shown in the figure, a disk 31 is provided at the end of the rotating shaft 29 of the scraping body 25, and the disk 31 is connected to the crank 32 provided at the end of the rotating shaft 20 of the defibrating member 17 via a connecting rod 33. Connect and defibrate member 1
By moving the scraping body 25 back and forth in conjunction with the rotation of 7, the scraping plate 28 reciprocates along the side walls 24 and 24 of the hopper 14. The range of this reciprocation is
It can be arbitrarily determined depending on the mounting position of the connecting rod 33 to the crank 32, but is preferably in a range of about 37 ° above and below the horizontal plane. The scraping body 25 may be made of a metal material, a synthetic resin material, or the like, and is not particularly limited.

A casing 35 is attached to the end of the screw conveyor 16 on the discharge port 15 side.
A fiber opening member 36 is provided therein. This opening member 36
, A plurality of rod-shaped members 38, 38,... Protrude from a tube shaft 37 fitted on the rotating shaft 20 of the screw conveyor 16, and are rotated separately from the screw conveyor 16 by a pulley 39 at the end. ing.

A rotary feeder 40 is provided on the lower surface of the casing 35. The rotary feeder 40 has a plurality of blades 42, 42,... Protruding from a rotating shaft 41, and a discharge port 43 thereof is connected to an intermediate portion of a fiber feeding hose 44. A chain wheel 45 is provided at an end of the rotary feeder 40. Although not shown, one end of the fiber feeding hose 44 is connected to a blower, and the other end is connected to a sprayer.

Spraying fiber material supply apparatus 1 having the above structure
In order to use 0, the collected fiber material such as cotton litter is introduced into the hopper 14 from the introduction port 13, and the scraping body 25, the defibrating member 17, the screw conveyor 16, the fiber opening member 36 and the like are driven. The input fiber material is defibrated by the defibrating member 17. The wet fiber material is supplied to the hopper 1
4 easily stays near the side walls 24, 24,
7 by the reciprocating motion of the scraping body 25 disposed in the upper part of
In particular, the fiber material staying around the side walls 24, 24
It is scraped off at 8, 28, and sinks down sequentially to the defibrating member 17 by the action of gravity. The fiber material passing from the outlet 15 through the screw conveyor 16 after passing through the defibrating member 17 is sequentially opened by the opening member 36, and then transferred to the rotary feeder 40. Sent inside. The sent fiber material in the opened state is injected from the nozzle of the sprayer, mixed with the cement slurry injected from another nozzle, and a uniform fire-resistant coating layer can be formed on the target construction surface.

According to the apparatus for supplying a fiber material for spraying of the present invention configured as described above, the scraping body 25 reciprocating along the side walls 24 of the hopper 14 is disposed above the defibrating member 17. With this arrangement, the side wall 2 of the hopper 14
The wet fiber material can be sent to the defibrating member 17 without staying in the vicinity of 4 and 24, and the occurrence of the bridging phenomenon can be reliably prevented and smooth supply can be performed. In addition, the fiber material to be used is not limited to the collected cotton wool, but is also suitable for use of a fiber material containing cotton wool or a new fiber material.

[0018]

According to the present invention having the above-described structure, the scraping body reciprocating along the side wall is disposed above the defibrating member in the hopper. The wet fiber material can be scraped off and sent to the lower part of the defibrating member, so that the so-called bridging phenomenon can be prevented. Therefore, it is possible to smoothly supply the opened fiber material to the sprayer.

Further, the scraping body provided in the spraying fiber material supply device of the present invention has a simplified structure in which a frame assembled by a main frame, an auxiliary frame and a scraping plate is supported on a rotating shaft,
Its manufacture is simple, it can be manufactured at low cost, and its repair is also simple.

Further, by connecting the disk provided at the end of the rotating shaft of the scraping body to the crank provided on the rotating shaft of the cotton removing member by a connecting rod, the disk can be easily interlocked with the rotation of the cotton removing member. The scraping body can reciprocate.

[Brief description of the drawings]

FIG. 1 is a vertical sectional view of a spray fiber material supply device of the present invention.

FIG. 2 is a sectional view of a main part of the supply device.

FIG. 3 is a perspective view of the scraping body of the present invention.

FIG. 4 is a longitudinal sectional view of a conventional example.

[Explanation of symbols]

 14 hopper 16 screw conveyor 17 defibrating member 24 side wall 25 scraping body 28 scraping plate

Claims (3)

(57) [Claims] 1. A spray fiber material supply device in which a screw conveyor is disposed near a bottom portion in a hopper and a defibrating member is disposed above the screw conveyor. And a scraping body that reciprocates along a line. 2. The scraping body has an auxiliary frame fixed to each end of the left and right main frames supported on a rotating shaft in an upright manner, and a scraping plate is erected between upper and lower ends of the auxiliary frame. 2. The method according to claim 1, wherein
An apparatus for supplying the spraying fiber material according to the above. 3. A disk provided at an end of a rotating shaft of the scraping body and a crank provided at an end of the rotating shaft of the cotton-removing member are connected by a connecting rod. 3. The supply device of the spraying fiber material according to 1 or 2.