JPH07229838A - Automatic color checker - Google Patents

Abstract

PURPOSE:To provide an automatic color checker in which the application of permeation liquid or developer is automated at the time of color check test for deciding presence of any defect in a work W. CONSTITUTION:A plurality of works W, each incorporating a magnet, are sucked to a work holder and held in place. When a shutter 13 is released, a belt 33 is operated by a drive motor 30 and the work holder 4 coupled with the belt 33 is carried into an enclosed chamber 11. Subsequently, the shutter 13 is closed. A permeation liquid K1 is sprayed on the work W and then a cleaning liquid K2 is sprayed thereon and after cleaning the work W at an air curtain section 65, a developer K4 is sprayed on the work W. Thereafter, the work holder 4 is transferred in the direction of arrow A2. When the shutter 13 is released, the work holder 4 is transferred to the outside of the enclosed chamber 11.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an automatic color check device for automatically spraying a penetrating liquid and a developing liquid onto a surface to be inspected of a work in order to judge whether the work has a defect.

[0002]

2. Description of the Related Art Conventionally, in industry, a color check method has been adopted to determine the presence or absence of defects in a work. In this method, the process of spraying the penetrant onto the surface to be inspected of the work, the process of removing excess penetrant adhering to the work, and the process of spraying the developer onto the surface to be inspected of the work from which the penetrant has been removed. It will be implemented in order.

According to this method, the permeating liquid that has penetrated into the defects of the work appears on the surface to be inspected due to the capillary phenomenon, so that the defects form a colored pattern on the surface to be inspected, and Presence / absence is determined.

[0004]

By the way, although the presence or absence of defects can be determined by the color check method, it is necessary to spray the penetrant liquid onto the work or the developer onto the work. Since these liquids generally use a volatile organic solvent, there is a problem in protecting the human body in the spraying process.

The present invention has been made in view of such circumstances. A common object of claims 1 to 4 is to provide a color check device in which the spraying process of the penetrant and the developer is automated, which is advantageous in terms of protecting the human body. Further, the object of claim 1 is to prevent the penetration of the penetrant liquid and the developer by carrying out the penetrant liquid spraying process, the penetrant liquid removing process and the developer spraying process in a closed chamber, and in terms of environmental protection and human body protection. It is to provide a more advantageous automatic color check device.

The object of claim 2 is to reduce or avoid process unevenness by reciprocating the work in a predetermined direction in at least one of the penetrant liquid spraying process, the penetrant liquid removing process, and the developer spraying process, and determine the color check. An object of the present invention is to provide an automatic color check device that is advantageous for ensuring accuracy. An object of a third aspect of the present invention is to provide an automatic color check device which is capable of satisfactorily removing the excess penetrant liquid adhering to the work in a short time and which is advantageous in ensuring the accuracy of color check determination.

The object of claim 4 is to improve the degree of holding when holding the work on the work holder, and to reduce or avoid the adhesion of cleaning liquid or the like to the work, which is advantageous for ensuring the accuracy of the color check judgment. It is to provide an automatic color check device.

[0008]

An automatic color check device according to a first aspect of the present invention includes a base body having a closed chamber and a shutter for opening and closing the closed chamber, a movable work holder for holding a work to be color checked, A work holder drive unit for moving the work holder in a closed chamber of the base body, a penetrant spray unit for disposing the penetrant liquid on the work held by the work holder, and a penetrant spray unit for disposing the penetrant liquid on the base body. , A penetrant removal unit that removes excess penetrant adhering to the work held in the work holder, and a work that is disposed on the substrate and has the extra penetrant removed from the work holder. The work held in the work holder by controlling the developer spraying unit that sprays the developer, the work holder drive unit, the penetrant sprayer, the penetrant remover, and the developer sprayer. The permeate was sprayed, in which subsequently are excess permeate was removed and spraying the workpiece, characterized by comprising a control means of spraying the developer on the workpiece after the removal.

A penetrant spray treatment, a penetrant wash treatment, and a developer spray treatment are carried out in the closed chamber of the substrate. Therefore, it is preferable that the penetrating liquid spraying region, the penetrating liquid removing region, and the developing liquid spraying region are formed in series in the closed chamber. The automatic color check device according to claim 2 includes a base,
A movable work holder that holds the color-checked work, a work holder drive unit that moves the work holder, and a process that sprays the penetrant onto the work that is mounted on the base and is held in the work holder. A liquid spraying section, a penetrant removal unit that is disposed on the base and that removes excess penetrant attached to the work held by the work holder, and a penetrant removal unit that is disposed on the base and held by the work holder. The developer spraying unit that sprays the developing solution onto the existing work, the work holder drive unit, the penetrant spraying unit, the penetrant removing unit, and the developer spraying unit are controlled, and the penetrant is applied to the work held in the work halter. After that, the excess penetrant liquid adhering to the work is removed, the developer is sprayed on the work after the removal, and the penetrant spray treatment, penetrant removal treatment, and developer spray treatment And also characterized in that it comprises a control means for reciprocating at least one workpiece holder in a predetermined direction in one.

When the penetrant remains on the work when the developer is sprayed, a colored pattern is formed by the contact between the penetrant and the developer, and the work is erroneously determined to be defective despite the normal work. Therefore, the determination accuracy of the color check may be reduced. Further, if the cleaning liquid remains on the work, the developing liquid may not adhere to the surface to be inspected of the work, and the accuracy of the color check may deteriorate. In this regard, in the automatic color check device according to claim 3, the penetrant removing unit includes a cleaning liquid spraying unit that sprays a cleaning liquid such as water or an organic solvent onto the work.
It is composed of an air curtain part for blowing compressed air onto the work after spraying the cleaning liquid. Therefore, the excess penetrating liquid and cleaning liquid adhering to the work can be effectively removed.

In the automatic color check device of claim 4,
The work holding surface of the work holder is characterized in that it is narrower than the work and is composed of a surface of a protrusion that is magnetically attracted or vacuum attracted. When magnetic attraction is used, the work may be a permanent magnet itself or one provided with a permanent magnet, and the attraction surface itself of the work holder may have a magnetic force.

The aspect of the automatic color check device of the present invention will be further described. The work holder drive unit may be of a motor type or a cylinder type. The penetrant spray unit can be configured to include a solenoid valve and a nozzle. The developer spraying section can also be configured to include a solenoid valve and a nozzle. Depending on the type of work defect, it may take some time for the penetrant to penetrate into the work defect. In this case, it is preferable that the control means controls each part so that the penetrant removal treatment is performed after a predetermined time has passed after the penetrant spray.

The control means may be constructed by software using a computer or by a wired logic circuit. The work used in the automatic color check device of the present invention is not particularly limited, but, for example, small parts, structures and the like can be appropriately selected. The defects detected by the color check are not particularly limited, but there are welding defects, casting defects, rolling defects, assembly errors, and the like.

[0014]

The operation of the automatic color check device of the first aspect will be described together with the method of use. The work is held on the work holding surface of the work holder. With the shutter open, the work holder is driven into the closed chamber by the drive of the work holder drive unit. The shutter closes after loading. In this state, the penetrant liquid spraying section operates and the penetrant liquid is sprayed on the surface to be inspected of the work. When the process of spraying the penetrant liquid is completed, the penetrant liquid removal unit operates and the extra penetrant liquid sprayed on the surface to be inspected of the work is removed. Next, the developing solution spraying section is activated and the developing solution is sprayed onto the surface to be inspected of the work.

If there is a defect on the surface to be inspected of the work,
The penetrant liquid that has permeated the defect is sucked out and exposed on the surface to be inspected, a colored pattern is formed, and the presence or absence of the defect is determined.
In the automatic color check device according to claim 2, the control means comprises:
Since the work holder drive unit is controlled so as to reciprocate the work holder at least once during the processing, the processing unevenness is reduced or avoided.

According to the automatic color check device of claim 3,
The permeating liquid removing unit is composed of a cleaning liquid spraying unit that sprays the cleaning liquid onto the work, and an air curtain unit that blows compressed air to the work after spraying the cleaning liquid. Therefore, the excess penetrant sprayed on the surface to be inspected of the work is effectively removed. In the automatic color check device according to the fourth aspect, the work holding property is improved by magnetic attraction or vacuum attraction. Since the protrusion is narrower than the work, the cleaning liquid or the like is less likely to remain on the work.

[0017]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the device of the present invention will be described below with reference to the drawings. In this example, a color check test is performed on a denture attachment as a work. (Structure of Embodiment) FIG. 1 is a conceptual diagram of the entire structure of the device of the present invention. FIG. 2 is a diagram showing a plan view of a main part of an actual device. The processing container 1 as a substrate includes a closed chamber 11 having a charging port 10 at one end, a first shutter 13, a second shutter 14, and an intermediate shutter 15. The first shutter 13 is opened and closed by an air-type first cylinder 16 when the work W is taken in and out. The intermediate shutter 15 is opened and closed by an air type intermediate cylinder 17. The second shutter 14 is opened during maintenance and is always closed. As shown in FIG. 1, in the closed chamber 11, a penetrant spray area 11a, a water spray area 11b as an penetrant removal area, an air curtain area 11c, and a developer spray area 11e are arranged in series. There is. An inclined surface 20 is provided at the bottom of the closed chamber 11.
Are formed. The inclined surface 20 extends from the other end 20e to one end 2
It is descending and inclined toward 0f. A drain port 21 is formed on the descending end side of the inclined surface 20. Drainage port 21
The drainage liquid discharged from is stored in the drainage tank 22.

The work holder drive unit 3 moves the work holder 4 in the closed chamber 11 of the processing container 1. The work holder drive unit 3 includes a drive motor 30 arranged on one end side of the processing container 1, a drive pulley 31 held on a motor shaft of the drive motor 30, and a driven pulley arranged on the other end side of the processing container 1. 32, and an endless toothed belt 33 that is installed between the drive pulley 31 and the driven pulley 32. The drive motor 30 is composed of a pulse motor that is driven according to the number of input pulses, and the drive motor 30 is probably driven according to the input pulse.

The work holder 4 is a trolley type and the belt 3 is used.
It is connected to 3. Therefore, when the belt 33 operates, the work holder 4 runs. As shown in FIG. 3, a large number of steel protrusions 40 are formed on the upper surface of the work holder 4. As shown in FIG. 4, the protrusion height of the protrusion 40 is indicated by h1. The upper surface of each protrusion 40 is a flat work holding surface 40c.
It is said that.

As shown in FIG. 1, a penetrant spray unit 5 is disposed above the penetrant spray area 11a of the closed chamber 11.
The penetrant spray unit 5 is a solenoid valve 50 that controls the inflow of penetrant liquid.
And a nozzle 51 for ejecting the penetrant liquid. Further, the cleaning water spraying unit 60 is arranged above the water spraying region 11b, and the air curtain unit 65 is arranged above the air curtain region 11c. The cleaning water spray unit 60 includes an electromagnetic valve 61 that controls the inflow of cleaning water and a nozzle 62 that ejects cleaning water. The air curtain portion 65 is held by the intermediate shutter 15, and when the intermediate shutter 15 descends, the air curtain portion 65 also descends. The work W on the work holder 4 is prevented from colliding with the air curtain portion 65 at the lower end of the air curtain portion 65. In a normal use state, the air curtain portion 65 descends together with the intermediate shutter 15.

In the developer spray area 11e, the developer spray section 7 is provided.
Is provided. The developer spray unit 7 includes an electromagnetic valve 70 that controls the inflow of the developer and a nozzle 71 that ejects the developer. As shown in FIG. 1, a photoelectric tube sensor 13x is arranged near the first shutter 13. The photoelectric tube sensor 13x detects that the work holder 4 is carried into the closed chamber 11.

Further, as shown in FIG. 2, a cleaning nozzle 66 for ejecting cleaning water is also provided on the side of the processing container 1, and the cleaning water is also sprayed from the side of the work W. Further, the entire processing container 1 is covered with the cover member 1r. FIG. 7 shows a block diagram of the control means 8. The control means 8 includes an input processing circuit 80, a CPU 81, an output processing circuit 8
2. The memory 83 is provided. As shown in FIG. 7, detection signals from the photoelectric tube sensor 13x and the start switch 86 are input to the control means 8. The start switch 86 starts the work of loading the work W into the closed chamber 11, and is operated by the user. As shown in FIG. 7, the motor driver circuit 30f is controlled by the control signal from the control means 8.
The drive motor 30 is controlled via the. Further, a penetrant liquid solenoid valve 50, a wash water solenoid valve 61, an air curtain portion 65,
The developer electromagnetic valve 70 is controlled by a control signal from the control means 8 via each drive circuit. The cylinders 16 and 17 are controlled by the control signal of the control means 8 via the cylinder drive circuit.

(Operation of Embodiment) Now, the operation of the apparatus of this embodiment will be described together with its method of use. First, the work W is placed on the work holding surface 40c of each protrusion 40 of the work holder 4 by a user's manual work or a robot, as shown in FIGS. Since the work W has a built-in permanent magnet, it is magnetically attracted to the steel work holding surface 40c, thereby increasing the degree of holding of the work W. Therefore, the deviation of the work W in each process is avoided. Next, the first shutter 13 is opened, and the charging port 10 is opened. With the loading port 10 thus opened, the work holder drive unit 3 drives the work holder 4 into the penetrant spray region 11a of the sealed chamber 11 of the processing container 1. At this time, the position of the work holder 4 is detected by the photoelectric tube sensor 13x, and the origin determining process is executed by the control means 8 to define the origin position of the work holder 4.

After the work holder 4 is loaded into the closed chamber 11, the first shutter 13 is closed. Then, in the state where the work holder 4 reaches the penetrant spray area 11a,
The electromagnetic valve 50 of the penetrant spray unit 5 is actuated, the penetrant K1 is sprayed from the nozzle 51, the penetrant is applied to the surface to be inspected of the work W, and the surface to be inspected becomes white. At this time, the drive motor 30 is controlled by the control means 8, and the work holder 4 moves forward in the direction of arrow A1 or retracts in the direction of arrow A2. Such reciprocal movement of the work holder 4 is executed a suitable number of times in the penetrant spraying process. Therefore, uneven coating of the penetrant on the work W is reduced or avoided.

When the penetrant spraying process is completed in this way, the control means 8 drives the drive motor 30, the work holder 4 travels in the direction of arrow A1 and reaches the water spraying area 11b, which is the next step. Then, the solenoid valve 61 is activated to spray the cleaning water K2 from the nozzle 62 onto the surface to be inspected of the work W,
This removes the penetrant. Since the cleaning water is jetted from the cleaning nozzle 66 described above, the cleaning property is ensured. At the time of cleaning, the drive motor 30 is controlled by the control means 8 so that the work holder 4 advances to the arrow A1 or the arrow A1.
Retreat in two directions. Such reciprocating movement of the work holder 4 is executed a proper number of times in the cleaning process. Therefore, work W
The cleaning unevenness in is reduced or avoided.

When the cleaning process is completed in this way, the control means 8 drives the drive motor 30, the work holder 4 travels in the direction of arrow A1, and the air curtain region 1 which is the next step.
Reach 1c. At this time, as shown in FIG. 3, the air curtain portion 65 is lowered together with the intermediate shutter 15 and the work W
Is approaching. Then, the compressed air K3 is ejected from the air curtain portion 65 onto the surface to be inspected of the work W, whereby the permeated liquid is further removed, and the cleaning water adhering to the work W and the work holder 4 is also removed. To dry. During the air curtain process, the work holder 4 is advanced by the control means 8 in the direction of arrow A1 or retracted in the direction of arrow A2. Such a reciprocating movement of the work holder 4 is executed a proper number of times during the operation of the air curtain portion 65, and therefore, the unevenness of the blowing of the compressed air on the work W is reduced or avoided.

When the compressed air blowing process is completed in this way, the control means 8 drives the drive motor 30 so that the work holder 4 runs in the direction of arrow A1 and the developer spray area 11e.
To reach. Then, the solenoid valve 70 is operated and the developing solution K4 is sprayed from the nozzle 71 onto the surface to be inspected of the work W. At this time, the control means 8 moves the work holder 4 forward in the direction of arrow A1 or backward in the direction of arrow A2. Such reciprocal movement of the work holder 4 is executed a proper number of times in the developer spraying process. Therefore, the uneven coating of the developer on the work W is reduced or avoided.

When the developer spraying process is completed in this way,
The work motor 4 controlled by the control means 8 causes the work holder 4 to retreat in the direction of arrow A2. Then, with the first shutter 13 opened, the work holder 4 is inserted into the loading port 1
It is carried out from 0 to the outside of the closed chamber 11. When there is a defect on the surface to be inspected of the work W, the penetrant liquid that has penetrated into the defect is sucked out and exposed on the surface to be inspected, a red colored pattern is formed, and the presence or absence of the defect is determined. . In FIG. 1, a plurality of work holders 4 appear as if they have been carried into the closed chamber 11, but this shows the work holders 4 that have reached each region for the sake of clarity. In this embodiment, the number of work holders 4 actually carried into the closed chamber 10 is 1.
It is an individual.

(Control Mode) FIG. 8 shows a flowchart of a routine executed by the CPU 81 of the control means 8 of the apparatus of this embodiment. This routine starts when the power is turned on.
In step S2, registers and the like are initialized. In step S4, the process waits until the start switch 86 is turned on. When the user turns on the start switch 86, the process proceeds to step S6 and the origin is determined. In step S8, a command to open the first shutter 13 is output to the first cylinder 16. In step S10, the drive motor 30 is driven to carry the work holder 4 into the closed chamber 11. In step S12, a command to close the first shutter 13 is output to the first cylinder 16. Work holder 4 in step S14
Output a signal to reciprocate to the drive motor 30,
The electromagnetic valve 50 is turned on to spray the penetrant liquid. Thus, the penetrant spraying process is executed. Solenoid valve 5 in step S16
0 is turned off to stop spraying the penetrant, and the drive motor 30 is controlled to move the work holder 4 to the next step, that is, the water spray area 11
Advance to b and start the penetration timer. In step S18, it is determined whether the permeation timer has timed out, that is, whether a predetermined time has elapsed. The set time of the permeation timer takes into consideration the time required for the penetrant liquid to permeate the defects of the work W, and is set appropriately according to the type of the work W and the type of the defect to be judged. If the predetermined time has elapsed, it is considered that the penetrant has sufficiently penetrated into the defect of the work W. Therefore, the permeation timer constitutes the permeation liquid permeation judging means. Then, in step S20, a signal for reciprocating the work holder 4 is output to the drive motor 30, and the solenoid valve 61 is turned on to spray the cleaning water. In step S22, the solenoid valve 61 is turned off to stop the spray of cleaning water, and the drive motor 30 is controlled to move the work holder 4 to the next step, that is, the air curtain region 11
Move forward to c. In step S24, a signal for reciprocating the work holder 4 is output to the drive motor 30, and the air curtain portion 65 is turned on to blow the compressed air onto the work W.

Further, in step S26, the air curtain unit 65 is
Is turned off and the drive motor 30 is controlled to advance the work holder 4 to the next step, that is, the developing solution spraying area 11e. Further, in step S28, a signal for reciprocating the work holder 4 is output to the motor driver circuit 30f of the drive motor 30, and the solenoid valve 70 is turned on to spray the developing solution onto the work W. In step S30, the electromagnetic valve 70 is turned off to stop the spraying of the developing solution, and the drive motor 30 is controlled to control the work holder 4
Retreat. Furthermore, the standby timer is started. In step S32, the process waits until a predetermined time elapses, and when the predetermined time elapses, a signal for opening the first shutter 13 is output to the cylinder drive circuit of the first cylinder 16 in step S34.
In step S36, the drive motor 30 is driven to carry the work holder 4 out of the closed chamber 11. And step S
At 38, a signal for closing the first shutter 13 is sent to the first cylinder 1
6, the count N indicating the number of times of processing is incremented, the standby timer and the permeation timer are cleared, and the process returns to step S4 to wait until the next ON operation of the start switch 86.

When the color check test is completed in this way, the first shutter 13 is closed, so that the scattering of the liquid from the closed chamber 11 can be suppressed. When performing the next color check test, if the user turns on the start switch 86, the same processing as described above is executed. (Effects of the embodiment) As described above, in this embodiment, the penetrant spraying process using the liquid such as the organic solvent, the penetrant removing process,
The developer spraying process is automatically executed without manual work by the operator, which is advantageous in terms of protecting the human body.

Further, in the present embodiment, since the permeating liquid spraying process, the penetrating liquid removing process, and the developing liquid spraying process are carried out in the closed chamber 11, the penetrating liquid, the washing water, and the developing liquid are processed in the processing container 1.
It is possible to suppress the scattering to the outside and damage the surrounding environment, which is also advantageous in terms of environmental protection. Further, in this embodiment, the entire processing container 1 is covered with the cover member 1r, which is more advantageous in preventing scattering and contamination.

Further, in the present embodiment, when each process such as the penetrant spraying process, the penetrant removing process, and the developer spraying process is performed, the work holder 4 reciprocates a proper number of times in its traveling direction, so that each process is performed. It is possible to reduce or avoid the uneven processing. Therefore, even though a large number of works W are held in the work boulder 4, the penetrant is well adhered to each work W, the cleaning is also good, and the developer is well adhered, and the judgment accuracy of the color check test is good. Can be secured.

Further, as shown in FIG. 5, when the work holding surface of the work holder 4 is wider than the work W, liquid droplets of penetrant, cleaning water, and developing solution are provided between the side surface of the work W and the work holding surface. E tends to remain. If such a residual amount remains, a judgment error of the color check test occurs and the judgment accuracy decreases. For example, when the droplet E is cleaning water, the developer does not easily adhere to that portion, and even if there is a defect in that portion of the work W, a colored pattern is not formed or is difficult to form. Further, when the droplet E is the penetrant liquid, even if the work W has no defect, there is a problem that a colored pattern is formed by the remaining penetrant liquid and the developer. In this regard, in the present embodiment, as shown in FIG. 4, since the work holding surface 40c of the protrusion 40 of the work holder 4 is narrower than the work W, the liquid droplet F is tentatively used.
Even if remains, it remains below the lower surface of the work W,
It does not remain on the side surface of the work W, so that the problem of color check judgment error can be avoided.

In this embodiment, when the cleaning water adhering to the work W is removed by the compressed air in the air curtain portion 65, as can be understood from FIG.
Is lowered and approaches the work W, the spraying of the compressed air is good, and the work of removing the wash water from the work W is effectively performed in a short time. Therefore, the cleaning property and the early drying property of the work W are improved. Also in this sense, the determination accuracy of the color check test can be secured.

In addition, in this embodiment, as shown in FIG. 6, since the two nozzles 71 for spraying the developing solution are juxtaposed along the traveling direction of the work holder 4, the developing solution is sprayed evenly on the work W. In this sense, the accuracy of the color check determination can be ensured. By the way, when the particles of the penetrant liquid floating in the closed chamber 11 come into contact with the particles of the developer, a colored pattern is formed, and the inner wall surface of the closed chamber 11 is contaminated with the colored pattern. In this respect, in this embodiment, the air curtain portion 65 is lowered in a normal use state, and in this case, the intermediate shutter 15 is also lowered as can be understood from FIG. 3, so that the penetrant spray region 11a and the water spray are provided. Area 1
The developer spray area 11e from 1b can be partitioned by the intermediate shutter 15. Therefore, it is possible to avoid contact between the particles of the penetrant liquid and the particles of the developer, which are floating in the closed chamber 11, as much as possible, which is advantageous in avoiding contamination of the inner wall surface of the closed chamber 11.

[0037]

According to the apparatus of claims 1 to 4, the penetrant spraying process, the penetrant removing process, and the developer spraying process are automatically executed, which is advantageous in terms of protecting the human body. Further, according to the apparatus of claim 1, the penetrant spraying process, the penetrant removing process,
Since each processing such as the developing solution spraying processing is executed in the closed chamber, it is possible to suppress the scattering of the penetrating liquid and the developing solution, which is more advantageous in terms of human body protection and environmental protection.

Further, according to the apparatus of claim 2, the work holder reciprocates when executing the penetrant spraying process, the penetrant removing process, the developer spraying process, etc., so that the process unevenness can be reduced or avoided. Therefore, the determination accuracy of the color check test can be improved. According to the apparatus of the third aspect, the work is cleaned in a short time with both the cleaning liquid and the compressed air, and therefore the accuracy of the color check determination can be secured in this sense as well.

According to the apparatus of claim 4, since the protrusion of the work holder is narrower than the work, even if the liquid droplets remain, they remain below the lower surface of the work. The problem of can be avoided.

[Brief description of drawings]

FIG. 1 is a conceptual diagram of an apparatus.

FIG. 2 is a configuration diagram of a main part of the device as viewed from above.

FIG. 3 is a configuration diagram showing an operation of an air curtain unit.

FIG. 4 is a view showing a state where a work is held on a work holding surface of a work holder.

FIG. 5 is a diagram showing a state where a work is held on a work holding surface of a work holder of another embodiment.

FIG. 6 is a diagram showing a form in which a developing solution is sprayed with a nozzle of a developing solution spraying unit.

FIG. 7 is a block diagram of control means.

FIG. 8 is a flowchart showing a routine of control means.

[Explanation of symbols]

In the figure, 1 is a processing container (base), 11 is a closed chamber, 11a is a penetrant spray area, 11b is a water spray area, 11c is an air curtain area, 11e is a developer spray area, 13 is a first shutter, and 3 is a shutter. Work holder drive unit, 30 is a drive motor, 4
Is a work holder, 40 is a protrusion, 40c is a work holding surface,
Reference numeral 5 is a penetrant spraying section, 7 is a developing solution spraying section, and 8 is a control means.

Claims (4)

[Claims] 1. A base provided with a closed chamber and a shutter for opening and closing the closed chamber, a movable work holder for holding a work to be color checked, and a work for moving the work holder in the closed chamber of the base. A holder driving unit, an osmotic liquid spraying unit that is disposed on the base body and sprays an osmotic liquid onto a work held by the work holder, and is disposed on the base body and is held by the work holder. Penetrant solution removing section for removing extra penetrant solution adhering to the existing work, and developer spraying section for spraying the developer solution onto the work piece held by the work holder and disposed on the base. And controlling the work holder drive unit, the penetrant spray unit, the penetrant remover, and the developer spray unit to spray the penetrant onto the work held by the work holder, and then attach it to the work. do it That excess permeate is removed, automatic color checking apparatus characterized by comprising a control means for spraying the workpiece with the developing solution after removal. 2. A base body, a workable work holder for holding a color-checked work, a work holder drive unit for moving the work holder, and a work piece disposed on the base body and held by the work holder. An osmotic liquid spraying unit for spraying the osmotic liquid onto the work, and an osmotic liquid removing unit disposed on the base for removing excess osmotic liquid adhering to the work held by the work holder. A developer spraying unit disposed on the base body and spraying a developer onto a work held by the work holder; a work holder driving unit, the penetrant spraying unit, and the penetrant removing unit; The developer spraying unit is controlled, the penetrant is sprayed on the work held by the work holder, the excess penetrant adhering to the work is removed, and the developer is sprayed on the work after the removal. And then soak Liquid sprayed, permeate removal process and a developing solution sprayed automatic color checking apparatus characterized by comprising a control means for reciprocating at least one said work holder in a predetermined direction at least one. 3. The permeating liquid removing unit is composed of a cleaning liquid spraying unit for spraying a cleaning liquid such as water or an organic solvent onto a work, and an air curtain unit for blowing compressed air to the work after spraying the cleaning liquid. The automatic color check device according to claim 1 or 2, which is characterized. 4. The work holding surface of the work holder is narrower than the work and is constituted by a surface of a projection which is magnetically attracted or vacuum attracted. Automatic color check device described.