JP3087658U - Pressurized air feeding device in spray machine - Google Patents

Abstract

(57) [Summary] [Problem] The pressure of pressurized air to be fed into a feeding hose is hard to decrease, the pressurized air can be continuously fed into the feeding hose, and the object to be sprayed can be stabilized. Provided is a spraying machine that can be sprayed and has a high working efficiency, is easy to handle, has excellent durability, has a simple structure, is suitable for mass production, is inexpensive, and is economical. SOLUTION: In a spraying machine having an upper drum 1, a lower drum 2, an air feeding nozzle 6, and a compressor 10, pressurized air from a compressor 10 can be fed into the upper drum 1. A first pipe A1 is formed, and a second pipe A2 capable of supplying pressurized air from the compressor 10 into the lower drum 2 is formed. Pressurized air from the compressor 10 is supplied through the air supply nozzle 6. To form a third conduit A3 capable of being fed into the feeding hose 7,
3 is provided with a receiver tank 11.

Description

[Detailed description of the invention]

[0001]

[Technical field to which the invention belongs]

 In the present invention, for example, cement, sand and water, or an object to be sprayed by adding gravel thereto, is stirred in the upper drum, and further stirred in the lower drum, and the supply hose is supplied from the discharge port. In the spraying machine, which is configured so that the object to be sprayed is gradually pressure-fed and the object to be sprayed can be sprayed to the desired position from the end of the feeding hose, the pressurized air from the compressor is continuously fed into the feeding hose. TECHNICAL FIELD The present invention relates to a pressurized air feeding device in a spraying machine devised so that the feeding can be performed efficiently and stably.

[0002]

[Prior art]

 Conventionally, in this type of spraying machine, for example, an object to be sprayed is put into an upper drum from a hopper, and the communication path is closed by an upper shutter provided in a communication path between the upper drum and the hopper. The object to be sprayed in the upper drum is stirred. Then, after pressurizing the inside of the upper drum to the same pressure as the inside of the lower drum, the closed state of the lower shutter provided in the communication passage between the upper drum and the lower drum is released, and the agitated sprayed material is moved downward. The material is fed into the drum, the communication path is closed by the lower shutter, and the material to be sprayed is gradually pressure-fed from the discharge port of the lower drum into the feeding hose while the material to be sprayed is stirred in the lower drum. At this time, pressurized air from the compressor is fed into the feed hose to assist in feeding the object to be blown. On the other hand, in the upper drum 1 in which the object to be sprayed has disappeared, the pressurized air in the upper drum is discharged to the outside of the tank, the communication passage is opened by the upper shutter, and the object to be sprayed is supplied from the hopper. The above operation is repeatedly performed.

[0003]

[Problems to be solved by the invention]

 However, in the above-mentioned spraying machine, when air is supplied from the compressor to the upper drum in order to pressurize the inside of the upper drum to the same pressure as that of the lower drum, the compressor is supplied to the supply hose. There is a possibility that the pressure of the supply of pressurized air from the container may decrease or become unstable. In addition, since the supply of pressurized air into the upper drum is repeated, there is a possibility that the efficiency of the spraying operation may be adversely affected.

[0004]

[Means for Solving the Problems]

 Thus, the present invention solves the above-mentioned difficulties and the like, and is easy to handle, has excellent durability, has a simple structure, is suitable for mass production, is inexpensive, and has a low cost economical air blower. The pressurized air feeding device according to the first aspect of the present invention is designed to provide a feeding device. The lower drum 2 in which the object to be sprayed is further stirred, the air feeding nozzle 6 for gradually feeding the object to be sprayed in the lower drum 2 from the discharge port into the feeding hose 7, In a spraying machine including a compressor 1, which supplies a drum 1, a lower drum 2, and an air supply nozzle 6, respectively, a first pipe A1 capable of supplying pressurized air from the compressor 10 into the upper drum 1. And pressurized air from the compressor 10 is formed. The second pipe A2 is formed to be able to supply the pressurized air from the compressor 10 to the supply hose 7 through the air supply nozzle 6 through the air supply nozzle 6. A means for forming a passage A3 and interposing a receiver tank 11 in the third conduit A3 was employed.

[0005] In the pressurized air supply device according to the second aspect, a valve B3 is interposed between the receiver tank 11 of the third conduit A3 and the air supply nozzle 6, and the first pipe is provided. Means was adopted in which a valve B1 was interposed between the compressor 10 in the line A1 and the upper drum 1, and a valve B2 was interposed between the compressor 10 and the lower drum 2 in the second line A2.

Further, in the pressurized air feeding device according to the third aspect, the receiver tank 11 is formed in a substantially elongated hollow cylindrical shape and the capacity is formed to be less than 40 liters. Adopted means to be attached.

[0007]

BEST MODE FOR CARRYING OUT THE INVENTION Hereinafter, the present invention will be described with reference to illustrated examples. First, the spraying machine provided with the pressurized air supply device of the present invention includes an upper drum 1, a lower drum 2 disposed below the upper drum 1, and a hopper 5 disposed above the upper drum 1. The upper communication passage between the hopper 5 and the upper drum 1 is provided with an upper shutter 3 so that the upper communication passage is openable and closable. A lower shutter 4 is provided in the lower communication passage so that the lower communication passage can be opened and closed. An air supply nozzle 6 is connected to a discharge port provided at the bottom of the lower drum 2. A supply hose 7 is connected to the tip of the air supply nozzle 6. In addition, the upper drum 1 and the lower drum 2 are each provided with a stirring blade, and are configured such that the stirring blade can be driven and rotated by appropriate power.

The pressurized air supply device according to the present invention includes a compressor 10, a first conduit A 1 capable of supplying pressurized air from the compressor 10 into the upper drum 1, and a pressurized air supply device from the compressor 10. A second pipe A2 capable of supplying pressurized air into the lower drum 2, and a third pipe capable of supplying pressurized air from the compressor 10 into the supply hose 7 through the air supply nozzle 6; It is provided with a passage A3 and a receiver tank 11 interposed in the third conduit A3. In addition, a valve B3 for controlling the supply of pressurized air is interposed between the receiver tank 11 of the third conduit A3 and the air supply nozzle 6, and is connected to the compressor 10 of the first conduit A1 and the upper part. A valve B1 for controlling the supply of pressurized air is interposed between the drum 1 and the pressurized air supply between the compressor 10 and the lower drum 2 in the second pipeline A2. It is configured with a valve B2 to be controlled. A valve B4 is provided in a shared portion (shared pipeline) of the first pipeline A1 and the second pipeline A2 so that the supply of pressurized air to the upper drum 1 and the lower drum 2 can be controlled simultaneously. May be.

[0009] Further, in using a spraying machine, first, cement, sand, and water, or gravel is added to these (or cement, sand, and water, or those obtained by adding gravel to these in advance). After the material to be sprayed is appropriately charged into the upper drum 1 from the hopper 5, the upper communication passage is closed by the upper shutter 3, and the material to be sprayed in the upper drum 1 is stirred by the stirring blade ( Or stirring and kneading). Then, after the inside of the upper drum 1 is gradually pressurized to have the same pressure as the inside of the lower drum 2, the lower communication path is opened by the lower shutter 4, and the object to be sprayed is fed into the lower drum 2. The lower communication path is closed by the lower shutter 4, and the object to be sprayed in the lower drum 2 is agitated (or agitated and kneaded) by a stirring blade, or the lower drum 2 is adjusted while being fed to the discharge port. The object to be sprayed is gradually fed from the discharge port into the supply hose 7 through the air supply nozzle 6 by utilizing the pressure of the pressurized air inside. At this time, pressurized air from the third conduit A3 (receiver tank 11) is supplied into the supply hose 7 through the air supply nozzle 6 so that the object to be sprayed can be pressure-supplied in an optimal state. ing. On the other hand, in the upper drum 1 in which the object to be sprayed has been removed, the pressurized air in the upper drum 1 is discharged to the outside of the tank via an exhaust valve or the like, and then the upper shutter 3 is used to open the upper communication passage. After being opened, the object to be sprayed is thrown in from the hopper 5-, and the above-mentioned operation is repeated so that the object to be sprayed can be continuously sprayed from the tip end of the feeding hose 7.

The pressurization in the upper drum 1 is performed by feeding pressurized air from the compressor 10 into the upper drum 1 via the first pipe A1, and the lower drum 2 (and The pressurization in the supply hose 7) is performed by supplying pressurized air from the compressor 10 to the lower drum 2 via the second pipe A2, and the pressurization in the supply hose 7 is performed by the compressor. The pressurized air from 10 is supplied to the supply hose 7 via the third conduit A3 and the receiver tank 11 so as to be performed.

In addition, the air supply nozzle 6 is formed so that it can be connected to the discharge port of the lower drum 2, and the third end of the air supply nozzle 6 is formed so that it can be connected to the third conduit A 3. Is formed so that a base end portion of the feeding hose 7 can be connected thereto. The air supply nozzle 6 may be provided with a plurality of discharge ports at the bottom of the lower drum 2 and may be mounted on each of these discharge ports (not shown).

The feed hose 7 is, for example, a considerably long one having flexibility, and an appropriate spray nozzle is attached to a tip portion thereof, so that the object to be sprayed can be sprayed smoothly. Is formed.

As the compressor 10, a compressor capable of stably supplying a desired pressurized air is used.

In the receiver tank 11, for example, the third conduit A 3 is cut at an appropriate position, one end of the cut is connected to one end of the receiver tank 11, and the other end of the cut is connected to the peripheral body of the receiver tank 11. It is interposed so as to be connected, and is configured to store pressurized air from the compressor 10 therein. That is, when the pressurized air is continuously supplied into the supply hose 7 via the air supply nozzle 6 through the third conduit A3, the upper drum is supplied from the compressor 10 via the first conduit A1. Even when the pressurized air is gradually fed into the feed hose 1, a decrease in the pressure of the pressurized air fed into the feed hose 7 can be reduced (or prevented) by the receiver tank 11, It is configured such that continuous supply of pressurized air into the supply hose 7 can be maintained.

Further, the receiver tank 11 is formed, for example, as a relatively compact and substantially elongated hollow cylindrical shape by a metal plate or the like as appropriate, and is horizontally provided on the side of the lower drum 2 so as not to be obstructed. Considered. In addition, the capacity is set to less than 40 liters, so that the receiver tank 11 does not need to be formed as in a pressure vessel.

The first pipeline A1, the second pipeline A2, and the third pipeline A3 can be configured in a free piping state by appropriately using a pipe material and a suitable joint, and valves B1, B2, It is formed so that B3 and B4 can be arranged.

The valves B 1, B 2, B 3, and B 4 allow the pressurized air supplied through the first pipe A 1, the second pipe A 2, and the third pipe A 3 to pass therethrough or prevent the pressurized air from passing therethrough. Or the passage amount can be adjusted. Moreover, it may be operated manually or may be operated by a motor or the like as appropriate and controlled by a computer using a control panel or the like.

Incidentally, the specific configuration, shape, dimensions, and material of the pressurized air supply device, the specific configuration, shape, dimensions, and material of the upper drum 1, and the specific configuration, shape, dimensions, material, and upper portion of the lower drum 2 Specific configuration, shape, size, arrangement position of shutter 3, specific configuration, shape, size, arrangement position of lower shutter 4, specific configuration, shape, size, arrangement position of hopper 5, air supply Specific configuration, shape, size, material, number, arrangement position of nozzle 6, specific configuration, shape, size, material, arrangement position of supply hose 7, specific configuration, shape, size, arrangement of compressor 10 Installation position, specific configuration, shape, size, material, number, arrangement position of receiver tank 11, specific configuration, shape, dimension, arrangement position of first pipeline A1, specific configuration of second pipeline A2 Configuration, shape, dimensions, arrangement position, and specific configuration of the third conduit A3 The configuration, shape, size, arrangement position, and specific configuration, shape, size, arrangement position, and the like of the valves B1, B2, B3, and B4 can be freely set and changed as appropriate without being limited to the illustrated examples. Things.

[0019]

[Effect of the invention]

 Therefore, the pressurized air feeding device according to the first aspect includes an upper drum 1 where the object to be sprayed is stirred, a lower drum 2 where the object to be sprayed in the upper drum 1 is further stirred, and a lower drum 1 where the object to be sprayed is further stirred. An air supply nozzle 6 for gradually feeding the object to be sprayed in the drum 2 from a discharge port into a supply hose 7, and pressurized air is supplied to the upper drum 1, the lower drum 2, and the air supply nozzle 6, respectively. In the spraying machine provided with the compressor 10 which performs the compression, the first duct A1 capable of supplying the pressurized air from the compressor 10 into the upper drum 1 is formed, and the pressurized air from the compressor 10 is supplied to the lower drum 1. 2 and a third conduit A3 capable of supplying pressurized air from the compressor 10 into the supply hose 7 through the air supply nozzle 6. Then, a receiver tank is connected to this third pipeline A3. When the pressurized air from the compressor 10 is continuously supplied into the supply hose 7 through the air supply nozzle 6 by the third conduit A3, for example, the compressor 10 Even if the pressurized air is gradually supplied from the air into the upper drum 1, the pressure of the pressurized air supplied into the supply hose 7 through the third conduit A3 is reduced by the receiver tank 11. It becomes difficult, and the pressurized air can be continuously supplied into the supply hose 7. As a result, it is possible to stably spray the object to be sprayed and to provide a spraying machine with high work efficiency. Furthermore, it is easy to handle, has excellent durability, has a simple structure, is suitable for mass production, is inexpensive, and is a compressed air supply device for an economical spraying machine.

Further, in the pressurized air feeding device according to the second aspect, a valve B3 is interposed between the receiver tank 11 of the third pipe A3 and the air feeding nozzle 6, and the first pipe A1 is provided. A valve B1 is interposed between the compressor 10 of the second drum A and the upper drum 1, and a valve B2 is interposed between the compressor 10 of the second pipe A2 and the lower drum 2, so that the first pipe A1 , The second pipeline A2 and the third pipeline A3 can be easily opened and closed by the valves B1, B2 and B3, and the amount of passage thereof can be easily controlled.

Further, in the pressurized air supply device according to the third aspect, the receiver tank 11 is formed in a substantially elongated hollow cylindrical shape, the capacity is formed to be less than 40 liters, and the receiver tank 11 is attached to the lower drum 2. Therefore, the receiver tank 11 can be attached to the spraying machine so as not to be in the way. In addition, the receiver tank 11 does not need to be configured like a pressure vessel, and the receiver tank 11 itself can have a simple and free configuration.

[Brief description of the drawings]

FIG. 1 is a front view illustrating a pressurized air supply device of the present invention.

FIG. 2 is a side view illustrating the pressurized air supply device of the present invention.

FIG. 3 is a schematic view illustrating the pressurized air supply device of the present invention.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 Upper drum 2 Lower drum 3 Upper shutter 4 Lower shutter 5 Hopper 6 Air supply nozzle 7 Supply hose 10 Compressor 11 Receiver tank A1 First line A2 Second line A3 Third line B1 valve B2 valve B3 valve B4 valve

Claims (3)

[Utility model registration claims] 1. An upper drum in which an object to be sprayed is stirred, a lower drum in which an object to be sprayed in the upper drum is further agitated, and an object to be sprayed in the lower drum from a discharge port into a supply hose. In a spraying machine equipped with an air supply nozzle that gradually supplies air and a compressor that supplies pressurized air to each of the upper drum, lower drum, and air supply nozzle, pressurized air from the compressor is supplied to the upper drum. To form a first pipe that can be supplied to the compressor, and to form a second pipe that can supply pressurized air from the compressor into the lower drum, and pressurized air from the compressor through the air supply nozzle. A pressurized air feeding device in a spraying machine, characterized in that a feedable third pipe is formed in a feed hose, and a receiver tank is interposed in the third pipe. 2. A valve is interposed between the receiver tank in the third line and the air supply nozzle, and a valve is interposed between the compressor and the upper drum in the first line. 2. A pressurized air feeding device according to claim 1, wherein a valve is interposed between the compressor and the lower drum. 3. The spraying machine according to claim 1, wherein the receiver tank is formed in a substantially elongated hollow cylindrical shape, and has a capacity of less than 40 liters, and is provided along with the lower drum. Pressurized air supply device in