KR101205018B1 - Raw coating material feeding apparatus, raw coating material feeding method, and coating material mixing apparatus and coating material mixing method using the same - Google Patents

Abstract

The present invention can shorten the time required for supplying the raw material paint, and can further reduce the size and cost of the raw material paint supplying device, the raw material paint supplying method, and the paint mixing device and paint mixing using the same. The task is to provide a method.
MEANS TO SOLVE THE PROBLEM In order to solve the said subject, the raw material paint supply apparatus of this invention is a pump provided in the output side of a supply tank, a raw material supply valve provided in the output side of a pump, operation stop operation of a pump, and opening / closing operation of a raw material supply valve. The control part measures the weight of the raw material paint supplied to the intermediate tank, and performs a stop operation of a pump when the weight of the raw material paint reaches the preset pre-quantification set value, When the weight of the paint is larger than the pre-quantification set value and reaches the preset free fall set value, the raw material supply valve is closed.

Description

Raw material feed device and raw material paint supply method, and paint mixing device and raw material coating method using the same {Raw coating material feeding apparatus, raw coating material feeding method, and coating material mixing apparatus and coating material mixing method using the same}

The present invention provides a raw material paint supply device and a raw material paint supply method for supplying a raw material paint as required amount when a plurality of raw material paints, such as a multi-liquid paint, etc. are mixed in the field, and a paint mixing device and a paint mixing method using the same. It is about.

Generally, various paints are shipped in the state filled with the metal container of moderate size, such as an 18 liter can and a gallon can. These various paints are transported as they are in the form as shipped, that is, 18 liter cans or gallon cans as they are, and the lid is opened on the spot.

Among paints, for example, there are polyliquid paints used by mixing a plurality of paints and solvents such as two liquids or three liquids, such as epoxy resin paints and urethane resin paints. Since such a paint hardens in a short time when it mixes from the beginning, it is required to mix and use just before use.

On the other hand, in the ship field or the vehicle field, it is sometimes necessary to apply a wide range with the same paint. In such a case, mixing paints each time in the field requires a lot of effort, lacks in planning, and is required to improve.

For this reason, in patent document 1 (Japanese Patent No.3267529), when raw material paint is supplied from the raw material tank for supplying raw material paint to the mixing tank for temporarily collecting raw material paint, between raw material tank and mixing tank A paint mixing device and method for controlling the flow rate by controlling an opening and closing operation of an installed raw material supply valve using two types of control signals including a large input signal T and a small input signal t are disclosed. .

Specifically, as shown in FIG. 5, the coating material mixing apparatus 100 disclosed in Patent Document 1 includes a plurality of raw material tanks 110, 115, raw material tanks 110, and 115 in which a raw material paint is accumulated. Raw material supply valves 120 and 125 for adjusting the raw material supply amount from the raw material), a mixing tank 130 for temporarily collecting raw material paints supplied from the raw material tanks 110 and 115, and a mixing tank ( A stirring unit 140 including a stirring means 145 for stirring the paint in 130 and a control unit 150 for controlling the opening and closing operations of the raw material supply valves 120 and 125 are provided.

The control unit 150 also includes a supply amount measuring unit 152 for measuring the weight of the raw material paint supplied to the mixing tank 130, and a discriminating unit for outputting a discrimination signal when the weight of the raw material paint reaches a predetermined value. 154 and a control processor 156 for controlling the opening and closing operations of the raw material supply valves 120 and 125, the stirring operation of the stirring unit 140, and the like, in accordance with the discrimination signal from the discriminating unit 154. have.

In the paint mixing device 100, the raw material paints accumulated in the raw material tanks 110 and 115 are sequentially supplied to the mixing tank 130. When supplying the raw material paint to the mixing tank 130, as shown in FIG. 6, the raw material supply valve (S) is sent from the control processing unit 156 to the raw material supply valve 120 by sending a large input signal T and a small input signal t. 120 is greatly opened, and the raw material paint is supplied to the mixing tank 130 at a large flow rate.

6 (a) is a graph showing the relationship between the elapsed time and the weight of the raw material paint in the mixing tank 130, and FIG. 6 (b) is a diagram sent from the control processing unit 156 to the raw material supply valve 120. FIG. The timing chart which shows the state of input signal T and the small input signal t.

When the weight of the raw material paint supplied to the mixing tank 130 reaches a predetermined quantitative starting value, a determination signal is sent from the determination unit 154 to the control processing unit 156, and the raw material supply valve 120 Only the small input signal t is sent. Thereby, the opening amount of the raw material supply valve 120 becomes small, and the raw material paint is supplied to the mixing tank 130 at a small flow rate.

In addition, when the weight of the raw material paint supplied to the mixing tank 130 reaches a predetermined fine adjustment start value, a determination signal is sent from the determination unit 154 to the control processing unit 156 and the raw material supply valve ( 120, a small input signal t is sent while switching on / off properly. As a result, the raw material paint is supplied in small amounts until the weight of the raw material paint supplied to the mixing tank 130 reaches the measured value.

Japanese Patent No.3267529

However, in such a paint mixing apparatus 100, since the weight of the raw material paint supplied to the mixing tank 130 is supplied so that it may supply little by little until it reaches | attains the unadjusted starting value and reaches a fixed value, The time required to supply the raw material paint from the supply tank 110 to the mixing tank 130 has become long.

In addition, in order to adjust the input amount of the raw material paint, the mechanism of the raw material supply valve 120 is complicated, or the equipment score is increased, so that the apparatus becomes large and the cost becomes expensive.

In view of such a phenomenon, the present invention can shorten the time required to supply a raw material paint, and furthermore, a raw material paint supply device and a raw material paint supply method capable of reducing the size and cost of the apparatus, and this method An object of the present invention is to provide a used paint mixing device and a paint mixing method.

This invention was invented in order to achieve the subject and object in the prior art as mentioned above, The coating material mixing apparatus of this invention is a raw material paint for supplying the raw material paint gathered in a supply tank to an intermediate tank as much as needed. As a feeder,

A raw material supply pump provided on an output side of the supply tank;

A raw material supply valve provided on an output side of the raw material supply pump;

It has a control unit for controlling the operation stop operation of the raw material supply pump and the opening and closing operation of the raw material supply valve,

The controller measures the weight of the raw material paint supplied into the intermediate tank,

When the weight of the raw material paint reaches a preset pre-quantitative setting value, the stopping operation of the raw material supply pump is performed,

A closing operation of the raw material supply valve is performed when the weight of the raw material paint is greater than the set value before the fixed amount and reaches a preset free fall set value.

In addition, the raw material paint supply method of the present invention is a raw material paint supply method for supplying the raw material paint collected in the supply tank to the intermediate tank as required amount,

A pump stopping step of stopping the pump provided on the output side of the supply tank when the weight of the raw material paint supplied into the intermediate tank reaches a preset pre-quantification set value;

When the weight of the raw material paint supplied into the intermediate tank is larger than the pre-quantitative set value and reaches a preset free fall set value, a waste to close the raw material supply valve provided on the output side of the pump. Valve process,

A supply termination step of terminating the supply of the raw material paint when a preset weighing waiting time has elapsed;

And a control unit.

With this configuration, since there is no need to adjust the opening degree of the raw material supply valve provided between the supply tank and the intermediate tank, the device configuration can be simplified, and the size and cost of the device can be reduced. Therefore, the failure rate of the device can be reduced. In addition, since the equipment score can be reduced, the maintenance of the device is easy and the operability can be improved.

In addition, by controlling the timing of the stop of the raw material supply pump and the closing valve of the raw material supply valve provided between the supply tank and the intermediate tank, the time required to supply the raw material paint can be shortened. In addition, since the supply time can be shortened, the operating time of the raw material supply pump or the like can be shortened, and the life can be extended.

In addition, the paint mixing apparatus of the present invention, a plurality of supply tanks each of which a plurality of raw material paints are collected,

The above-described raw material paint supply device,

An intermediate tank in which the plurality of raw material paints are sequentially supplied and temporarily collected;

A stirring part for stirring a some raw material paint supplied in the said intermediate tank is characterized by the above-mentioned.

The paint mixing device further includes a mixed paint supply valve and a mixed paint supply pump on the output side of the intermediate tank,

The mixed paint produced by stirring the plurality of raw material paints in the intermediate tank may be configured to be discharged out of the intermediate tank through the mixed paint supply valve and the mixed paint supply pump.

Moreover, the coating material mixing method of this invention is a raw material paint supply process which supplies a some raw material paint sequentially from the said supply tank to the said intermediate tank by the raw material paint supply method mentioned above,

A stirring step of supplying the plurality of raw material paints to the intermediate tank and then stirring the plurality of raw material paints in the intermediate tank for a predetermined time;

And a control unit.

The paint mixing method may further include a discharging step of discharging the mixed paint produced by stirring the plurality of raw material paints in the stirring step outside the intermediate tank.

In this way, by using the material mixing device and the material mixing method using the above-described raw material paint supply device and raw material paint supply method, a plurality of raw material paints can be easily and quickly mixed, and the mixed paint can be supplied to a painting machine or the like, The time required for painting can also be shortened.

According to the present invention, the time required for supplying the raw material paint can be shortened by controlling the timing of the stop of the raw material supply pump provided between the supply tank and the intermediate tank and the timing of the closing valve of the raw material supply valve. In addition, since the supply time can be shortened, the operating time of the raw material supply pump or the like can be shortened, and the life can be extended.

In addition, since there is no need to adjust the opening degree of the raw material supply valve provided between a supply tank and an intermediate tank, an apparatus structure can be simplified, a device can be reduced in size, cost can be reduced, and a failure rate of an apparatus can be reduced. Can be. In addition, since the equipment score can be reduced, the maintenance of the device is easy and the operability can be improved.

1 is a block diagram schematically showing a paint mixing device including a raw material paint supply device of the present invention.
2 is a flowchart showing a flow of controlling the paint mixing device in the control unit.
3 is a timing chart showing the opening / closing timing of the raw material supply valve, the operation stop timing of the raw material supply pump, and the weight change of the raw material paint supplied to the raw material tank.
4 is a weight time chart showing the relationship between the elapsed time from the start of supplying the raw material paint and the weight value measured by the metering means 36 (feed amount measuring unit 152).
5 is a block diagram schematically showing a conventional paint mixing device.
FIG. 6 is a timing chart showing the opening and closing timing of the raw material supply valve and the operation stop timing of the raw material supply pump in the conventional paint mixing device, and the weight change of the raw material supplied to the raw material tank.

EMBODIMENT OF THE INVENTION Hereinafter, embodiment (example) of this invention is described in detail based on drawing.

1 is a block diagram schematically showing a paint mixing device including a raw material paint supply device of the present invention.

As shown in FIG. 1, the coating material mixing apparatus 10 of this invention is n raw material supply tank 12a in which the main material, such as an epoxy resin, and raw material paints, such as an amine hardening | curing agent, is stored separately, for example. ) To (12n).

From these raw material supply tanks 12a-12n, it is comprised so that raw material paint may be supplied to the intermediate tank 20 via the raw material transport pipes 14a-14n sequentially. The raw material supply pipes 14a to 14n are provided with raw material supply pumps 16a to 16n and raw material supply valves 18a to 18n, respectively. The raw material supply pumps 16a to 16n and the raw material supply valves 18a to 18n are configured to be controllable based on control signals from a control unit described later.

Moreover, the stirring part 22 is attached to the intermediate tank 20, and the some raw material paint supplied in the intermediate tank 20 by the stirring means 24, such as a screw arrange | positioned in the intermediate tank 20, is carried out. It can be stirred and mixed.

Moreover, the mixed paint transport pipe 26 is connected to the intermediate tank 20, and it is comprised so that the mixed paint can be taken out from the inside of the intermediate tank 20 via this mixed paint transport pipe 26. FIG. The mixed paint transport pipe 26 is provided with a mixed paint supply valve 28 and a mixed paint supply pump 30. The mixed paint supply valve 28 and the mixed paint supply pump 30 are also described later. It is comprised so that control is possible based on the control signal from the control part 38 to perform.

In the present embodiment, the mixed paint taken out from the intermediate tank 20 via the mixed paint transport pipe 26 is temporarily collected in the relay tank 32, for example, for painting an airless coating machine or the like. By supplying the mixed paint from the relay tank 32 to the machine 34, the painting to be coated can be performed.

In addition, the intermediate tank 20 is equipped with a measuring means 36 for measuring the weight of the raw material paint supplied into the intermediate tank 20. The weight of the raw material coating material measured by this measuring means 36 is sent to the control part mentioned later as weight data, in order to control raw material supply pump 16a-16n and raw material supply valves 18a-18n. Used.

In addition, the raw material coating pipe 14a to 14n, the raw material supply pumps 16a to 16n, the raw material supply valves 18a to 18n, the metering means 36, and the control unit 38 provide the raw material paint. The supply apparatus 11 is comprised. In addition, the raw material transport pipes 14a to 14n, the raw material supply pumps 16a to 16n, and the raw material supply valves 18a to 18n are the number of raw material paints to be used, that is, the supply tank 12a. It can change suitably according to the number of (12n).

In addition, as described above, the paint mixing device 10 is configured to be controlled automatically by the control unit 38. FIG. 2 is a flowchart showing a flow of controlling the paint mixing device 10 in the control unit 38.

1. Raw Material Paint Supply Process (S1 ~ S11)

When the operation | movement of the coating material mixing apparatus 10 is started (S1), the container weight of the measuring means 36 is subtracted first (S2). Then, a control signal for opening the raw material supply valve 18a from the control unit 38 is sent to the raw material supply valve 18a (S3), and then, from the control unit 38, the raw material supply pump 16a. The control signal for operating the control signal is sent to the raw material supply pump 16a (S4).

When the raw material feed pump 16a operates, the raw material paint is supplied from the supply tank 12a to the intermediate tank 20. While the raw material paint is being supplied to the intermediate tank 20, as shown in FIG. 3, the weighing means 36 measures the weight of the raw material paint supplied to the intermediate tank 20 at all times or periodically. There is (S5).

3 (a) is a graph showing the relationship between the elapsed time and the weight of the raw material paint in the intermediate tank 20, Figure 3 (b) is a control unit (3) to the raw material supply pump 16a and the raw material supply valve (18a). This is a timing chart showing the state of the control signal sent from 38). In FIG. 3B, when the control signal is turned on, the raw material supply pump 16a is in an operating state, and the raw material supply valve 18a is in an open valve state.

Then, when the weight of the raw material paint supplied into the intermediate tank 20 reaches a preset pre-quantification set value based on the quantitative value (the weight of the raw material paint supplied to the intermediate tank 20), the control unit 38 ), A control signal for stopping the raw material feed pump 16a is sent to the raw material feed pump 16a, and the raw material feed pump 16a is stopped (S6).

Even after the raw material feed pump 16a stops, the raw material paint remaining in the raw material transport pipe 14a is continuously supplied to the intermediate tank 20. In this way, even when the raw material paint remaining in the raw material transport pipe 14a is being supplied to the intermediate tank 20, the raw material paint supplied by the metering means 36 into the intermediate tank 20 at all times or periodically. The weight is measured (S7).

Then, the weight of the raw material paint supplied into the intermediate tank 20 is based on the quantitative value (the weight of the raw material paint supplied to the intermediate tank 20) to a previously set free fall set value as a value larger than the pre-quantitative setting value. When it reaches | attains, the control signal for closing the raw material supply valve 18a from the control part 38 is sent to the raw material supply valve 18a, and the raw material supply valve 18a closes a valve (S8).

Even after the raw material supply valve 18a is closed, the raw material paint remaining on the downstream side of the raw material supply valve 18a of the raw material transport pipe 14a is continuously supplied to the intermediate tank 20. For this reason, the weight of the raw material paint supplied to the intermediate tank 20 by the measuring means 36 is continuously measured from the closing valve of the raw material supply valve 18a until the predetermined measurement waiting time elapses. (S9).

After the waiting time for weighing has elapsed, for example, when the weighing is not normally performed by the weighing means 36 due to an abnormality such as a malfunction of the equipment, or when the supply amount of the raw material paint is not normal, an alarm is issued. An error output such as releasing is performed to terminate the operation of the paint mixing device 10 (S10).

When the supply of the raw material paint from the supply tank 12a is normally performed, it is determined whether all the raw material paint has been supplied (S11), and when the supply is not completed, the next raw material paint, that is, the supply tank 12b The raw material paint from) is performed in accordance with S2 to S11.

When supply of all raw material paints is completed, a raw material supply process is complete | finished and a stirring process is performed subsequently.

2. Stirring Process (S12 ~ S14)

In the stirring process, first, a control signal for operating the stirring means 24 is sent from the control part 38 to the stirring part 22, and the stirring part 22 operates the stirring means 24 (S12). .

The plurality of raw material paints in the intermediate tank 20 are stirred by the stirring means 24 until a predetermined stirring time elapses (S13), and a mixed paint is produced.

After the stirring time has elapsed, a control signal for stopping the stirring means 24 is sent from the control part 38 to the stirring part 22, and the stirring part 22 stops the stirring means 24 (S14). ).

As a result, the stirring step is completed, and then the mixed paint discharge step is executed.

3. Mixing paint discharge process (S15 ~ S20)

In the mixed paint discharge step, first, a control signal for opening the mixed paint supply valve 28 from the control unit 38 is sent to the mixed paint supply valve 28 (S15) and at the same time, the mixed paint supply pump 30 The control signal for operating the feed is sent to the mixed paint supply pump 30 (S16).

As a result, the mixed paint supply valve 28 is opened, the mixed paint supply pump 30 is operated, and the mixed paint is supplied from the intermediate tank 20 to the relay tank 32.

While the mixed paint is supplied from the intermediate tank 20 to the relay tank 32, the weight of the mixed paint remaining in the intermediate tank 20 is measured by the measuring means 36 at all times or periodically (S17). .

In S17, when the weight of the mixed paint in the intermediate tank 20 is substantially zero, that is, when all of the mixed paint in the intermediate tank 20 is discharged out of the intermediate tank 20, the mixed material is mixed from the controller 38. A control signal for stopping the paint supply pump 30 is sent to the mixed paint supply pump 30 (S18), while a control signal for closing the mixed paint supply valve 28 is mixed with the mixed paint supply valve 28. It is sent to (S19).

As a result, the mixed paint supply pump 30 is stopped, the mixed paint supply valve 28 is closed, and the supply of the mixed paint from the intermediate tank 20 to the intermediate tank 32 is terminated (S20). .

In this way, in the coating material mixing apparatus 10 according to the present embodiment, supply, stirring and discharge of a plurality of raw material paints are performed.

In addition, in this embodiment, since the paint mixing apparatus 10 and the raw material paint supply apparatus 11 were demonstrated as one thing, by the control part 38 which comprises the raw material paint supply apparatus 11, the mixed paint supply valve is carried out. (28) and the mixed paint supply pump (30) are also controlled, but the control unit (38) is provided separately from the control unit (38) of the raw material supply device (11), and the mixed paint supply valve (28) and the mixed paint supply pump (30). ) May be controlled.

In addition, the raw material paint supply apparatus 11 can be used in addition to the paint mixing apparatus 10, for example, when supplying one type of raw material paint, ie, 1-liquid type paint to the intermediate tank 20 by the required amount. It can also be used.

As mentioned above, although preferred embodiment of this invention was described, this invention is not limited to this, For example, it is comprised so that a mixed paint may be supplied directly from the intermediate tank 20 to the coating machine 34, etc. Various changes can be made without departing from the purpose.

Example

Hereinafter, the discharge of the mixed paint in the supply of the raw material paint in the case of using the paint mixing device 10 of the present invention (the present invention) and in the case of using the paint mixing device 100 disclosed in Patent Literature 1 (prior art) Compare the time taken to.

In this embodiment, 50.0 kg of the main material, 7.0 kg of the curing agent, and 3.0 kg of the thinner are sequentially supplied to the intermediate tank, stirred for 70 seconds in the intermediate tank, and then the intermediate is mixed with the mixed paint transport pipe. The mixed paint is discharged from the tank.

4 is a weight time chart showing the relationship between the elapsed time from the start of supplying the raw material paint and the weight value measured by the measuring means 36 (supply amount measuring unit 152), which is indicated by a solid line. The weight value time chart at the time of using the paint mixing apparatus 10 of this invention and the dashed-dotted line are the weight value time chart at the time of using the paint mixing apparatus 100 of the prior art.

As shown in Fig. 4, the time required from the start of supply of the raw material paint to the completion of discharging of the mixed paint is 180 seconds in the case of the paint mixing apparatus 10 of the present invention. The case became 200 seconds and 10% reduction was achieved.

10 Paint Mixer
11 raw material feeder
12a ~ 12n raw material feed tank
14a ~ 14n raw material transport pipe
16a ~ 16n raw material feed pump
18a ~ 18n raw material supply valve
20 medium tank
22 Stirring Section
24 stirring means
26 Mixed Paint Transport Pipe
28 Mix Paint Supply Valve
30 Mixed Paint Supply Pump
32 gradations
34 Painting Machine
36 Weighing Means
38 control unit
100 Paint Mixer
110，115 raw material tank
120，125 raw material supply valve
130 mixing tank
140 stirring section
145 Stirring means
150 controls
152 Supply Unit
154 Discrimination Unit
156 control processing unit

Claims (6)

As a raw material paint supply device for supplying raw material paint collected in a supply tank to a required amount in an intermediate tank,
A raw material supply pump provided on an output side of the supply tank;
A raw material supply valve provided on an output side of the raw material supply pump;
It has a control unit for controlling the operation stop operation of the raw material supply pump and the opening and closing operation of the raw material supply valve,
The controller measures the weight of the raw material paint supplied into the intermediate tank,
When the weight of the raw material paint reaches a preset pre-quantitative setting value, the stopping operation of the raw material supply pump is performed,
The raw material paint supply device characterized in that the closing operation of the raw material supply valve is performed when the weight of the raw material paint is greater than the pre-quantitative set value and reaches a preset free fall set value. A plurality of supply tanks in which a plurality of raw material paints are collected,
A raw material paint supply device according to claim 1,
An intermediate tank in which the plurality of raw material paints are sequentially supplied and temporarily collected;
And a stirring portion for stirring a plurality of raw material paints supplied into the intermediate tank. The method of claim 2,
Further comprising a mixed paint supply valve and the mixed paint supply pump on the output side of the intermediate tank,
A paint mixing device, characterized in that the plurality of raw material paints are agitated in the intermediate tank, and the mixed paints are discharged to the outside of the intermediate tank via the mixed paint supply valve and the mixed paint supply pump. . As a raw material paint supply method for supplying the raw material paint collected in a supply tank to an intermediate tank as much as needed,
A pump stopping step of stopping the pump provided on the output side of the supply tank when the weight of the raw material paint supplied into the intermediate tank reaches a preset pre-quantification set value;
A closing valve step of closing the raw material supply valve provided on the output side of the pump when the weight of the raw material paint supplied into the intermediate tank is larger than the pre-quantitative set value and reaches a preset free fall set value; ,
A supply termination step of terminating the supply of the raw material paint when a preset weighing waiting time has elapsed;
Raw material paint supply method comprising a. A raw material paint supply step of sequentially supplying a plurality of raw material paints from the supply tank to the intermediate tank by the raw material paint supply method according to claim 4,
A stirring step of supplying the plurality of raw material paints to the intermediate tank and then stirring the plurality of raw material paints in the intermediate tank for a predetermined time;
Paint mixing method comprising a. The method of claim 5,
And a discharging step of discharging the mixed paint produced by stirring the plurality of raw material paints in the stirring step to the outside of the intermediate tank.

Images