JP2009285585A - Method of controlling feed of two-component paint feeding device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To enable easy setting and selection of mixing control of a two components-feeding device even by an inexperienced person, and further to enable suitable paint feeding to painting specifications for an object to be coated by a single operation. <P>SOLUTION: The method of controlling in a coating process the supply data of a base compound and a cure agent of the two components-mixing feeding device when an object to be coated is painted with a multi-liquid paint makes use of a means for inputting identification data set according to an object to be coated, a means for setting and storing control data in advance comprising a base compound supply system in individual identification data, a cure agent supply system corresponding to it, and a cure agent supply system selected by the mixing specifications of the base compound and the cure agent, and a means for outputting opening and closing control signals by selecting a base compound supply system valve, a cure agent supply system valve, and mixing specifications according to the identification data, thereby automatically supplying and controlling the base compound supply system, the cure agent supply system, and the mixing specifications by the input of identification data. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

TECHNICAL FIELD The present invention relates to a control method that enables easy supply of a mixture specification and respective liquids to an object to be coated when a multi-component paint is stirred and mixed with a mixer and supplied to a coating machine. .

In the field of spray coating, two-component polyurethane coating and two-component epoxy coating are reactively cured to form a coating film by mixing and spraying a curing agent that is a catalyst to the main agent with few solvent components. Because it does not require high heat, its application is rapidly expanding in recent years for coating plastic materials.

In addition, the solvent can be reduced in general, and the coating performance such as weather resistance, chemical resistance and water resistance is excellent. Emissions can be eliminated, drying furnaces can be made unnecessary and the temperature can be lowered, and effective use and expansion of use are expected as an effective coating method for energy saving.

However, in a two-part or multi-part paint such as a two-part polyurethane paint or a two-part epoxy paint, when mixing the curing agent with the main agent, it is necessary to accurately and uniformly mix the mixture ratio set by the paint. If the mixing ratio is not appropriate, the formed coating film will not be able to demonstrate sufficient performance, and it may cause partial coating performance unevenness, resulting in deterioration of coating quality and durability. Will cause. Therefore, in painting, it is important to accurately supply the main agent and curing agent supplied to the coating machine.

This type of paint has various mixing ratios depending on its type, and the burden on the worker is gradually increasing in order to correctly supply the paint as the paint color to be applied diversifies. Yes. Up to now, production sites that use several paints have been using devices that automatically control supply according to the paints that use the main component and curing agent of multi-component paints in order to improve efficiency and automation.

As such a device, a device for supplying several main agents and a curing agent, and a switching valve for supplying a necessary liquid to the mixer among them are controlled to be opened and closed, and a necessary supply amount is mixed, The operator can select the main agent supply valve to which the paint to be used is connected from among the various paints set in the control device, and the necessary curing agent for the main agent. The curing agent valve to be supplied is selected, and the mixing specification regarding the supply amount in addition to the mixing ratio is input. With these inputs, the pumps and valves of each supply system are operated by the output from the control device, and the specified mixing is performed and supplied to the coating machine.

In this way, at the painting site, the management system is mainly composed of the paint to be painted. In the case of a multi-liquid supply control device, the supply system to which the control valve for the main paint is connected depending on what paint is used. Is selected, the required curing agent and its mixing ratio are determined, and the control device holds these mixing recipes and the selection information of the required curing agent valve as data to be managed, depending on the output It is configured to allow suitable coating.

On the other hand, in the production site, in many cases, a so-called workpiece is mainly used, and the workpiece is processed as an object to be coated at the painting site. At this time, it is necessary for an operator to appropriately select necessary information and operate the control device for a multi-component paint supply control device managed mainly with paint.

As mentioned above, due to the expansion of the objects to be coated and the diversification of paints to be used, even if the paint to be painted is known, the operator selects a main valve that supplies several prepared main paints and their mixing specifications. This makes it difficult to grasp appropriate judgments, increases the possibility of mistakes, and requires the operator's own knowledge and experience.

An object of the present invention is to make it possible for even a person who has no knowledge of mixing of multi-component paints to easily select a setting control for mixing control of a two-component paint supply device. In addition, it is possible to supply an appropriate coating material with a single operation for the coating specification of the object to be coated, and to prevent an accidentally mixed coating material from being supplied.

In the control method of managing the main agent and curing agent supply data of the two-component mixed supply device used in multi-component paint coating in the painting process, the input means of the identification number set according to the object to be coated, A main agent supply system for each identification number, a curing agent supply system corresponding to the main agent supply system, means for preliminarily setting and storing management data selected according to the mixing specifications of the main agent and the curing agent, and a main agent supply system according to the identification number The supply of the main agent supply system, the hardener supply system, and the mixing specification are automatically controlled by the input of the identification number by selecting the valve and the curing specification supply valve and the means for outputting the opening / closing control signal. It is characterized by automatically supplying a multi-component paint with mixed specifications that matches the identification number of the object to be coated. Further, the identification number is set for each type of object to be painted and for each painting specification.

According to the above method, the operator simply inputs the number assigned to the object to be painted into the control device, and is set in advance for each object to be coated and based on the management data stored in the control device. Therefore, the selection of the main component paint, the optimum mixing specification and the supply of the curing agent are automatically performed, and the reliability is improved.

The worker can input the number of the object to be painted without any hesitation, and even an inexperienced person can operate the machine. Therefore, by using a certain color change control, it becomes possible to easily supply paint with a main agent and a curing agent according to the object to be coated, and a mixed specification thereof, which can lead to an improvement in productivity.

FIG. 1 is a block diagram showing the construction of a multi-component paint supply apparatus including a mixing apparatus for carrying out the present invention. There are several devices for supplying paint as the main agent, each of which is mainly composed of paint containers 1a, 1b, 1c,..., Supply pumps 2a, 2b, 2c,. The supply valves 3a, 3b, 3c,... Are connected to the main agent switching valve 4. Similarly, the apparatus for supplying the curing agent is mainly composed of curing agent containers 5a, 5b, 5c, supply pumps 6a, 6b, and supply valves 7a, 7b, and the supply valves 7a, 7b are connected to the curing agent switching valve 8. Has been.

Also, each switching valve is provided with cleaning liquid valves 11 and 12 for controlling supply of the cleaning liquid sent from the cleaning liquid container 9 for cleaning the passage after the switching valve when the paint is switched through the cleaning liquid pump 10.

The discharge passages from the respective switching valves are connected so as to flow into the premixer 13 of the supply control device 14, and after being mixed in advance, are supplied to the coating machine 16 via the main mixing device 15. . Such a device is already known, and each device and valve are opened and closed by a control device 17 incorporated in the supply control device 14. The supply control has a configuration not shown so that an appropriate flow rate is supplied by a flow meter and a control valve provided in the passage, but is omitted here because it is not limited.

Up to now, supply control has been performed by a method in which a valve that can supply paint as the main agent to be applied to the control device is specified, and the supply valve of the curing agent is selected and supplied according to the setting of the mixing specification at that time, In the present invention, supply control is performed by designating a preset number depending on what is to be painted, that is, which object is to be painted, and where it is to be painted. Yes.

That is, as shown in FIG. 2 as an image diagram, a curing agent that is identified according to the object to be coated (work) and that specifies the supply system of the main agent to be used, the mixing specification of the main agent and the curing agent, and the mixing specification Management data such as a prescription in which a valve number for designating the supply system is preset is stored in the control device.

Each of the management data is stored for supply control according to the work number which is an identification number, and based on the management data, selection of a valve to be used for main agent supply by simply inputting the work number, in that case The mixing specifications and the selection of the curing agent valve to be supplied are automatically performed, and appropriate supply control is performed within the range of each set supply condition.

The main agent valve number is not limited to the number of main agent valves owned by the supply control device, but the main agent valve number when the main agent supply system paint is replaced can be set separately, increasing the number of work numbers. Can do. That is, a paint supply system corresponding to the main agent valve number is determined, and the determined paint (main agent) may be prepared as necessary. The same can be said for the curing agent supply system, and it can be used effectively within a limited range of equipment.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. The image figure which shows the method of this invention.

Explanation of symbols

1a, 1b, 1c, paint container
2a, 2b, 2c, supply pump
3a, 3b, 3c, supply valve 4, main agent switching valve
5a, 5b, hardener container
6a, 6b, supply pump
7a, 7b, supply valve 8, curing agent switching valve 9, cleaning liquid container 10, cleaning liquid pumps 11, 12, cleaning liquid valve 13, premixer 14, supply control device 15, main mixing device 16, coating machine

Claims (2)

In the control method of managing the main agent and curing agent supply data of the two-component mixed supply device used in multi-component paint coating in the painting process, the input means of the identification number set according to the object to be coated, A main agent supply system for each identification number, a curing agent supply system corresponding to the main agent supply system, means for preliminarily setting and storing management data selected according to the mixing specifications of the main agent and the curing agent, and a main agent supply system according to the identification number The supply of the main agent supply system, the hardener supply system, and the mixing specification are automatically controlled by the input of the identification number by selecting the valve and the curing specification supply valve and the means for outputting the opening / closing control signal. Supply control method for a two-component paint supply device that automatically supplies mixed-component multi-component paint that matches the identification number of the object to be coated. 2. The supply control method for a two-component paint supply apparatus according to claim 1, wherein the identification number is set for each type of coating object and each coating film specification.

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