JPH086514Y2 - Mixer cleaning device in mixing device for multiple liquid curable substances - Google Patents

Description

[Detailed description of the device]

[0001]

BACKGROUND OF THE INVENTION The present invention relates to a cleaning device for a mixing part in a mixing device for a multi-liquid curable substance to obtain a curable substance such as an adhesive or a paint by stirring a plurality of liquids. It is related.

[0002]

2. Description of the Related Art Conventionally, a device described in Japanese Utility Model Publication No. 2-4675 is known as a mixing device for a multi-liquid curable substance which stirs a plurality of liquids to form a curable substance such as an adhesive or a paint. ing. In this conventional device, an inlet for a non-curable liquid in a plurality of liquids to be mixed and an outlet for a curable liquid to be mixed are separately formed, and two liquids are mixed in a mixing section.

[0003]

In order to remove the curable substance from the mixing section after the completion of the work, this conventional apparatus opens the mixing section and disassembles the members used in the mixing section. Cleaning with a cleaning solution is performed. Therefore, cleaning requires a large number of steps, and unless the disassembling and cleaning work is carried out promptly, the curable substance may be cured inside the mixing section, causing a failure such as clogging.

[0004] The disassembling work and the cleaning work for preventing the clogging take a great deal of time and labor, which is a heavy burden on the operator.

The present invention is intended to solve the above-mentioned problems, and a mixing device for a multi-liquid curable substance is
Make sure that the mixing section is properly cleaned to prevent failures such as clogging. Further, it is intended to reduce the burden on the operator by simply performing this cleaning without disassembling.

[0006]

In order to solve the above-mentioned problems, the present invention projects a stirring shaft of a mixing device for stirring a plurality of liquids to form a curable substance downward through packing.
Out, connect the mixing section to this stirring shaft, and
On the packing side of the
Form an inlet for curable liquid and mix from this inlet
In the flow direction of the non-curable liquid flowing to the part
To form an inlet for the curable liquid through
The washed tube was connected to each of the liquid inlet chamber of the multiple liquid connection inlet, the cleaning tube, the hot water off while connecting the hot water pressure tank pressurized to fill the hot water through the hot water off valve A source of heated pressurized air is connected to the cleaning pipe on the liquid introduction chamber side of the valve via an air opening / closing valve, and when the hot water opening / closing valve is opened,
The air on-off valve is opened intermittently to introduce the heated and pressurized air and the mixed solution of hot water into the mixing section through the liquid introduction chamber for cleaning, and the air on-off valve is opened when the hot water on-off valve is closed. It is characterized in that it is continuously opened and heated and pressurized air is introduced into the mixing section through the liquid introduction chamber to carry out the drying operation.

[0007]

Since the present invention is constructed as described above, in a mixing apparatus for a multiple liquid curable substance, a mixed liquid of pressurized hot water and heated pressurized air is passed through a liquid introducing chamber. By introducing it to the mixing part, the curable liquid or non-curable liquid inside the mixing part and the mixed curable substance are heated and softened before being forcibly removed, enabling reliable cleaning. Become.

Further, since this removal is performed in a state where hot water and heated pressurized air are mixed, a strong impact of the cleaning fluid can be applied to the liquid introducing chamber and the mixing portion, and an excellent cleaning effect can be obtained. it can.

Further, if only heated and pressurized air is introduced into the mixing section, the mixing section after cleaning can be quickly heated and dried, and a simple drying operation can be performed.
In addition, this cleaning work is performed with a hot water on-off valve connected to the cleaning pipe,
It can be done by operating the air on / off valve, so it is a burden on the operator.
It is possible to wash with simple operation without hanging up.

Also, the packing that penetrates the stirring shaft of the mixing device
Forming an inlet for non-curable liquid on the ring side and non-curing
Of the curable liquid through a gap from the inlet in the flowing direction of the curable liquid.
It forms an inflow port. Therefore, the operation of the mixing device
Harden in packing that penetrates the stirring shaft even during operation
Liquid does not come in contact with the stirrer shaft by hardening the curable liquid
It does not cause a malfunction of.

[0011]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings. (1) is a pressurized liquid chamber filled with a pressurized liquid, and a prime mover (not shown) via a coupling (2). Stirrer shaft to connect with (3)
Rotatably penetrates through the stirring shaft (3) and the pressurized liquid chamber (1)
A packing (4) is located on the outer periphery of the upper and lower ends inside, and a pressing spring (6) is located between the packing (4) via a washer (5).

The pressing bar (6) presses the packing (4) toward the end so that the packing (4) does not move even when the stirring shaft (3) rotates. Further, the pressing strip (6) presses the packing (4) against the outer peripheral portion of the stirring shaft (3) to form the pressurized liquid chamber (1) liquid-tight.

A stirring shaft penetrating the pressurized liquid chamber (1)
In (3), the tip is projected from the pressurized liquid chamber (1) to the outside, and a mixing part (7) for stirring a plurality of liquids is connected to this protruding part. The mixing part (7) forms an inlet (8) and an inlet (10) for introducing a plurality of mixed contents. The inlet (8) for introducing the non-curable liquid in the plurality of mixed liquids is located on the packing (4) side of the pressurized liquid chamber (1). Further, the inflow port (10) through which the curable liquid flows is formed in the flowing direction of the non-curable liquid with a certain distance from the introduction port (8). By being formed in this way, the curable liquid does not come into fluid contact with the packing (4) side.

The inlet (8) and the inlet (10) are
It communicates with each supply source through the on-off valve mechanism (11). This on-off valve mechanism (11) is provided inside the introduction body (12) fixedly formed at the outer peripheral position of the pressurized liquid chamber (1), and the liquid introduction chamber (1)
3) The valve rod (14) is inserted into the inside, and the valve body (15) at one end of the valve rod (14) is projected to the discharge side (17) having a constant space volume through the valve seat (16). To do. And this valve body (15)
Is formed in a conical shape with a wide discharge side (17), and the valve seat (16) can be sealed by the outer peripheral surface thereof. The valve body (15) and the main body of the valve rod (14) are connected by a continuous portion (18) having a diameter smaller than the inner diameter of the valve seat (16).

Further, the mixing part (7) has a mixing shaft (20) having a mixing projection (19) protruding from the outer circumference thereof connected to the stirring shaft (3), and the mixing shaft (20) has a mixing shaft (20) at the tip thereof. A nozzle (21) for extracting the hardened material to the outside is formed.

Further, the above mixing device is provided with a cleaning mechanism (22) for removing the curable substance, the curable liquid and the non-curable liquid from the mixing section (7). The cleaning mechanism (22) connects a cleaning pipe (23) to each liquid introduction chamber (13) of a plurality of liquids, and a cleaning fluid control valve (2) is connected to each cleaning pipe (23).
4) It is provided.

Further, the cleaning mechanism (22) is provided with a hot water pressurizing tank on the upstream side of the cleaning pipe (23) via a hot water opening / closing valve (25).
(26) is connected. This hot water pressurization tank (26)
It is filled with hot water and a hot water heater (27) is provided on the outer circumference. The hot water pressurization tank (26) pressurizes the hot water by introducing pressurized air.

The washing pipe (23) is provided with a hot water on-off valve (25).
To the liquid introduction chamber (13) side of the
An air heater (30) is connected to enable heating of the pressurized air supplied from the air supply source.

In order to obtain a multi-liquid curable substance having the above-mentioned structure, the non-curable liquid is obtained by opening the on-off valve mechanism (11) for controlling the flow of the multi-liquids to be mixed. Is the inlet (8) on the packing (4) side of the mixing part (7)
Since the curable liquid is introduced from the inlet (10) at a certain distance in the flow direction from the inlet (8) for the non-curable liquid, the curable liquid is Due to the inflow pressure, it cannot flow to the packing (4) side and does not come into contact with the packing (4).

A pressurized liquid chamber (1) filled with a pressurized liquid
It is unlikely that the mixed liquid will flow into the side packing (4) from the side of the mixing part (7) due to the pressure of the pressurized liquid, and the mixing part (7) will be activated, and the non-curable liquid and the curable liquid will be Even when mixing is performed, the mixed liquid hardly flows from the packing (4) of the mixing part (7) through which the stirring shaft (3) is inserted.

The pressurized liquid to be filled in the pressurized liquid chamber (1) is
If it is the same liquid as the non-curable liquid in the multiple liquids to be mixed,
Even if a small amount of pressurized liquid flows into the mixing part (7) side from the pressurized liquid chamber (1) through the packing (4), the non-curable liquid will not be deteriorated and a homogeneous mixture will be obtained. A liquid can be obtained.

Further, the opening / closing valve mechanism (11) in the opened state
If the valve is closed, the valve body (15) will be moved in the direction of the liquid introduction chamber (13). ), The discharge side (17) is in a negative pressure state and the curable liquid and the non-curable liquid are sucked to the opening / closing valve mechanism (11) side to close the valve.
Good drainage of the nozzle (21).

Then, in order to complete the above-mentioned fixed amount discharge work and clean the mixing part (7) by the cleaning mechanism (22), first open the control valve (24) of the cleaning pipe (23), and then, First, the hot water on-off valve (25) is opened. Then, when the hot water on-off valve (23) is opened, the air on-off valve (28) is intermittently opened to open a mixed liquid of heated and pressurized air and hot water.
It is introduced into the mixing section (7) through the liquid introduction chamber (13).
By doing this, the curable liquid or non-curable liquid inside the mixing part (7) and the curable substance in the mixed state are heated to soften them and then forcibly removed to ensure reliable cleaning. Becomes

Further, since this removal is performed in a state where hot water and heated pressurized air are mixed, a strong impact of the cleaning fluid can be applied to the liquid introducing chamber (13) and the mixing part (7), which is excellent. A cleaning effect can be obtained.

After introducing the mixed liquid of heated and pressurized air and warm water, the warm water on-off valve (25) is closed. Then, when the hot water on-off valve (25) is closed, the air on-off valve (28) is continuously opened, and heated pressurized air is supplied to the liquid introduction chamber (13).
If it is introduced into the mixing section (7) via
The rapid drying of (7) is possible.

[0026]

Since the present invention is constructed as described above, a mixing device for a plurality of liquid curable substances is a mixture of pressurized hot water and heated pressurized air through a liquid introducing chamber. ,
By introducing into the mixing section, the curable liquid or non-curable liquid inside the mixing section and the curable substance mixed,
It is heated to soften it, and further, it is forcibly removed by applying an impact by the cleaning fluid in a pressurized state, which enables reliable cleaning.

If only heated and pressurized air is introduced into the mixing section, the mixing section after cleaning can be quickly heated and dried, and a simple drying operation can be performed.
Also, this cleaning work is similar to the conventional equipment
There is no need to disassemble the
This can be done simply by operating the air on-off valve,
It is possible to clean with simple operation without burdening
It

Also, the packing which penetrates the stirring shaft of the mixing device.
Forming an inlet for non-curable liquid on the ring side and non-curing
Of the curable liquid through a gap from the inlet in the flowing direction of the curable liquid.
It forms an inflow port. Therefore, the operation of the mixing device
Harden in packing that penetrates the stirring shaft even during operation
Liquid does not come in contact with the stirrer shaft by hardening the curable liquid
It does not cause a malfunction of.

[Brief description of drawings]

FIG. 1 is a sectional view of the present embodiment.

FIG. 2 is a time chart showing operating states of a hot water on-off valve and an air on-off valve.

[Explanation of symbols]

 7 Mixing part 13 Liquid introduction chamber 23 Cleaning pipe 25 Hot water opening / closing valve 26 Hot water pressurizing tank 28 Air opening / closing valve

Claims (1)

[Scope of utility model registration request] 1. A stirring shaft of a mixing device for stirring a plurality of liquids to form a curable substance is projected downward through a packing.
Then, connect the mixing section to this stirring shaft and
The non-hardness in multiple liquids to be mixed on the packing side of the
The introduction port for the volatile liquid is formed and the mixing section
In the flow direction of the non-curable liquid flowing to the
To form an inlet for the curable liquid through
Connect the inlet of the washing tube to each of the liquid inlet chamber of the multiple fluid connection, this washing pipe, the hot water off valve with connecting hot water pressure tank pressurized to fill the hot water through the hot water off valve The heating and pressurized air supply source is connected to the cleaning pipe on the side of the liquid introduction chamber via the air on / off valve, and when the hot water on / off valve is opened, the air on / off valve is opened intermittently to provide heated and pressurized air. A mixture of water and hot water is introduced into the mixing section through the liquid introduction chamber for cleaning, and when the hot water on-off valve is closed, the air on-off valve is continuously opened to heat and pressurize the heated air. A cleaning device for a mixing part in a mixing device for a plurality of liquid curable substances, which is introduced into the mixing part through a dryer to perform a drying operation.