JP2013129864A - Electrodeposition coating system - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an electrodeposition coating system which can accurately determine whether an electrodeposition condition is changed to a condition corresponding to a type of a workpiece.SOLUTION: The electrodeposition coating system includes: a conveyor 11; an electrodeposition tank 13; a plurality of types of electrodeposition condition switching tools a-c that correspond to each type of workpieces Wa-Wc; a first detection unit 14; a second detection unit 16; a voltage generator 15; a position detection unit; and a control unit 22 for confirming whether the detected result by the first detection unit 14 and the detected result by the second detection unit 16 agree with each other when workpieces Wa-Wc whose corresponding type of the electrodeposition condition switching tools a-c are detected by the second detection unit 16, are determined to be positioned between the electrodeposition tank 13 and a position where the first detection unit 14 has detected a type of the electrodeposition condition switching tools a-c, based on the detected result by the position detection unit.

Description

  The present invention relates to an electrodeposition coating system for electrodeposition coating a plurality of types of workpieces having different electrodeposition conditions.

Conventionally, a technique for electrodeposition coating a plurality of types of workpieces with different electrodeposition conditions is known (for example, Patent Document 1).
The technique disclosed in Patent Document 1 is a member that is conveyed at a position immediately before a workpiece in a coating system that performs electrodeposition coating on a workpiece to be conveyed, and a hitting bar that represents a subsequent workpiece type, and a limit switch Are contacted with each other to cause the limit switch to output a product type information signal, and the electrodeposition conditions are changed based on the product type information signal.

  However, when the limit switch is swung due to the contact rod being displaced due to the influence of vibrations or other disturbances (when the limit switch cannot be turned on), the electrodeposition conditions are not changed and the type of workpiece is supported. There was a possibility that electrodeposition coating would be performed under inappropriate electrodeposition conditions.

JP-A-10-168599

  The present invention provides an electrodeposition coating system capable of accurately determining whether or not an electrodeposition condition has been changed to a condition corresponding to the type of workpiece.

The electrodeposition coating system according to claim 1,
An electrodeposition coating system that electrodeposits paint on multiple types of workpieces with different electrodeposition conditions,
Conveying means for conveying the workpiece;
An electrodeposition tank which is provided on the transfer path of the workpiece and contains the paint;
A connecting means attached to the conveying means for connecting the workpiece to the conveying means;
A plurality of types of electrodeposition condition switching means that are detachable from the connection means and correspond to the type of the workpiece;
A first detection unit that is disposed upstream of the electrodeposition tank in the transport path and detects the type of the electrodeposition condition switching unit transported by the transport unit in a state of being attached to the connection unit;
A second detection unit that is disposed on the upstream side of the first detection unit in the transport path and detects the type of the electrodeposition condition switching unit that is transported by the transport unit in a state of being attached to the connection unit;
Changing means for changing the electrodeposition condition to a condition corresponding to the type of the electrodeposition condition switching means detected by the first detection means or the second detection means,
Position detecting means for detecting the position of the workpiece being conveyed by the conveying means in a state of being attached to the connecting means;
Based on the detection result of the position detection means, the workpiece in which the type of the corresponding electrodeposition condition switching means is detected by the second detection means is the electrodeposition tank, and the first detection means is the electrodeposition condition. Control means for confirming whether or not the detection result of the first detection means and the detection result of the second detection means coincide with each other when it is determined that it exists between the position where the type of the switching means is detected. When,
Is provided.

In the electrodeposition coating system according to claim 2,
The first display means for displaying information relating to the electrodeposition condition corresponding to the type of the electrodeposition condition switching means detected by the first detection means, and the kind of the electrodeposition condition switching means detected by the second detection means And second display means for displaying information relating to the corresponding electrodeposition conditions.

In the electrodeposition coating system according to claim 3,
When the detection result of the first detection means is different from the detection result of the second detection means, the control means stops the conveying means before the work reaches the electrodeposition tank. .

In the electrodeposition coating system according to claim 4,
Third detection means for detecting whether or not the electrodeposition condition switching means being transported by the transport means while being attached to the connecting means is present downstream of the electrodeposition tank;
Informing means that operates when the third detection means detects the electrodeposition condition switching means, and informs an operator that the electrodeposition condition switching means exists downstream of the electrodeposition tank;
Stop means that is an operating tool for stopping the operation of the notification means;
Is provided.

  According to the present invention, it is possible to accurately determine whether or not the electrodeposition condition is changed to a condition corresponding to the type of workpiece.

The schematic block diagram of an electrodeposition coating system. The flowchart which shows the procedure when an electrodeposition coating system carries out the electrodeposition coating of the coating material to a workpiece | work.

  Below, the electrodeposition coating system 10 is demonstrated with reference to drawings.

  The electrodeposition coating system 10 is an apparatus for electrodeposition-coating paints on a plurality of types of workpieces.

  The electrodeposition coating is performed by immersing the workpiece in a paint and applying a voltage between the workpiece as a cathode and an anode so that the paint is adsorbed on the surface of the workpiece, and a coating film is formed on the surface of the workpiece. It is the coating method which forms.

  The workpiece is, for example, an automobile body. The workpieces have different electrodeposition conditions (treatment conditions) for each type, that is, different voltages are applied during the electrodeposition coating for each type. There are three types of workpieces Wa to Wc in this embodiment. For the workpiece Wa, the voltage applied during the electrodeposition coating is set to A, for the workpiece Wb the voltage applied during the electrodeposition coating is set to B, and for the workpiece Wc, the voltage applied during the electrodeposition coating is C. Is set to

  As shown in FIG. 1, the electrodeposition coating system 10 includes a conveyor 11, a conveyor control means 12, a hanger (not shown), an electrodeposition tank 13 for storing paint, and electrodeposition condition switching jigs a to c. The first detection means 14, the voltage generator 15, the second detection means 16, the position detection means for the workpieces Wa to Wc, the first display means 17, the second display means 18, and the jig removal system. (Third detection means 19, buzzer-equipped rotating lamp 20, and jig removal confirmation button 21) and control means 22 are provided.

  The conveyor (conveying means) 11 conveys the workpieces Wa to Wc, and forms an annular conveyance path. Conveyor control means 12 for controlling the operation of the conveyor 11 is connected to the conveyor 11. The hanger (connecting means) is attached to the conveyor 11. The workpieces Wa to Wc are conveyed by the conveyor 11 while being hung on the hanger. An electrodeposition tank 13 is disposed on the transport path of the workpieces Wa to Wc formed by the conveyor 11. A work setting place is provided on the upstream side of the electrodeposition tank 13 in the transfer path, and a work unloading place is provided on the downstream side of the electrodeposition tank 13. When the workpieces Wa to Wc are attached to the hanger at the workpiece setting site and pass through the electrodeposition tank 13, the workpieces are immersed in the paint in the electrodeposition tank 13, and the voltage is further applied in this state. By being applied, the electrodeposition coating is applied, and then removed from the hanger at the work lowering place.

  The electrodeposition condition switching jigs (electrodeposition condition switching means) a to c are members for switching the electrodeposition condition to a condition corresponding to the type of the workpieces Wa to Wc. The electrodeposition condition switching jigs a to c are members that can be attached to and detached from the hanger, and have different shapes. The electrodeposition condition switching jigs a to c correspond to the workpieces Wa to Wc, respectively, and when the workpiece Wa is attached to the hanger, the electrodeposition condition switching jig a is attached to the hanger. When the work Wb is attached to the hanger, the electrodeposition condition switching jig b is attached to the hanger, and when the work Wc is attached to the hanger, the electrodeposition condition is applied to the hanger. A switching jig c is attached. Similarly to the workpieces Wa to Wc, the electrodeposition condition switching jigs a to c are attached to the hanger at the workpiece setting site and removed from the hanger at the workpiece lowering site.

  The 1st detection means 14 detects the kind of said electrodeposition condition switching jig | tool a-c currently conveyed by the conveyor 11 in the state attached to the said hanger. The first detection means 14 includes a limit switch a1, a limit switch b1, and a limit switch c1. The limit switches a1, b1, and c1 are arranged on the upstream side of the electrodeposition tank 13 in the transport path, and are provided immediately before the electrodeposition tank 13.

  When the electrodeposition condition switching jig a is attached to the hanger and is conveyed by the conveyor 11 and passes through a place where the limit switches a1, b1, and c1 exist, the electrodeposition condition switching jig a contacts the limit switch a1. There is no contact with the limit switches b1 and c1. As a result, the limit switch a1 is turned on, the limit switches b1 and c1 are turned off, and the first detection means 14 detects the electrodeposition condition switching jig a. The electrodeposition condition switching jig b is transported by the conveyor 11 in a state of being attached to the hanger and contacts the limit switch b1 when passing through a place where the limit switches a1, b1, and c1 exist. There is no contact with the limit switches a1 and c1. As a result, the limit switch b1 is turned on, the limit switches a1 and c1 are turned off, and the first detection means 14 detects the electrodeposition condition switching jig b. The electrodeposition condition switching jig c is transported by the conveyor 11 in a state of being attached to the hanger, and contacts the limit switch c1 when passing through a place where the limit switches a1, b1, and c1 exist. There is no contact with the limit switches a1 and b1. Thereby, the limit switch c1 is turned on, the limit switches a1 and b1 are turned off, and the first detection means 14 detects the electrodeposition condition switching jig c.

  The voltage generator (changing means) 15 changes the voltage applied between the workpiece and the anode, and changes the electrodeposition conditions to the types of the electrodeposition condition switching jigs a to c (for the workpieces Wa to Wc). Type) and corresponding conditions. The voltage generator 15 is connected to the first detection means 14 and changes the voltage applied between the workpiece and the anode based on the detection result of the first detection means 14. Specifically, when the first detection means 14 detects the electrodeposition condition switching jig a, the voltage generator 15 corresponds to the applied voltage with the electrodeposition condition switching jig a (the workpiece Wa). When the first detection means 14 detects the electrodeposition condition switching jig b, the voltage to be applied is changed to the electrodeposition condition switching jig. b is changed to B corresponding to the workpiece Wb (the voltage B corresponding to the workpiece Wb is generated), and when the first detection means 14 detects the electrodeposition condition switching jig c, the voltage to be applied Is changed to C corresponding to the electrodeposition condition switching jig c (the workpiece Wc) (a voltage C corresponding to the workpiece Wc is generated).

  The 2nd detection means 16 detects the kind of said electrodeposition condition switching jig | tool a-c currently conveyed by the conveyor 11 in the state attached to the said hanger. The second detection means 16 has a limit switch a2, a limit switch b2, and a limit switch c2. The limit switches a2, b2, and c2 are arranged on the upstream side of the first detection means 14 in the transport path, and are provided at the exit of the work setting place.

  The electrodeposition condition switching jig a is transported by the conveyor 11 in a state of being attached to the hanger, and contacts the limit switch a2 when passing through a place where the limit switches a2, b2, and c2 exist, There is no contact with the limit switches b2 and c2. As a result, the limit switch a2 is turned on, the limit switches b2 and c2 are turned off, and the second detection means 16 detects the electrodeposition condition switching jig a. The electrodeposition condition switching jig b is transported by the conveyor 11 in a state of being attached to the hanger, and contacts the limit switch b2 when passing through a place where the limit switches a2, b2, and c2 exist. There is no contact with the limit switches a2 and c2. As a result, the limit switch b2 is turned on, the limit switches a2 and c2 are turned off, and the second detection means 16 detects the electrodeposition condition switching jig b. The electrodeposition condition switching jig c is transported by the conveyor 11 in a state of being attached to the hanger, and contacts the limit switch c2 when passing through a place where the limit switches a2, b2, and c2 exist. There is no contact with the limit switches a2 and b2. As a result, the limit switch c2 is turned on, the limit switches a2 and b2 are turned off, and the second detection means 16 detects the electrodeposition condition switching jig c.

  The said position detection means detects the position of the said workpiece | work Wa-Wc currently conveyed by the conveyor 11 in the state attached to the said hanger. The position detection means includes a conveyor count limit switch 23 provided on the upstream side of the second detection means 16 (the work setting place), and count means (not shown) connected to the conveyor count limit switch 23 and the second detection means 16. ) And. When the conveyor 11 is driven, the position detecting means repeats the ON / OFF operation of the conveyor count limit switch 23 a number of times proportional to the driving amount of the conveyor 11, and the counting means turns on the conveyor count limit switch 23 at this time. By counting the number of times, the driving amount of the conveyor 11, that is, the positions of the workpieces Wa to Wc conveyed by the conveyor 11 are detected. The counting means starts counting of the conveyor count limit switch 23 from the point when any one of the limit switches a2, b2, and c2 of the second detecting means 16 is turned on.

  The first display means 17 (electric lamps u, v, and w) are connected to the first detection means 14, and the types of the electrodeposition condition switching jigs a to c detected by the first detection means 14 (the workpiece Wa Information on the electrodeposition conditions (applied voltages A to C) corresponding to .about.Wc) are displayed. Specifically, when the first detection means 14 detects the electrodeposition condition switching jig a (when the limit switch a1 is in an ON state), the lamp u in the ED 漕 voltage A column is displayed. When the first detection means 14 detects the electrodeposition condition switching jig b (when the limit switch b1 is in the ON state), the lamp v in the column of EDＢ voltage B is When the first detection means 14 detects the electrodeposition condition switching jig c (when the limit switch c1 is in the ON state), the lamp w in the column C of ED 漕 voltage is lit. To do.

  The second display means 18 (lights x, y, z) is connected to the second detection means 16, and the types of the electrodeposition condition switching jigs a to c detected by the second detection means 16 (the work Wa Information on the electrodeposition conditions (applied voltages A to C) corresponding to .about.Wc) are displayed. Specifically, when the second detection means 16 detects the electrodeposition condition switching jig a (when the limit switch a2 is turned on), the lamp x in the column A of the memory voltage When the second detection means 16 detects the electrodeposition condition switching jig b (when the limit switch b2 is turned on), the lamp y in the column B of the memory voltage is When the second detection means 16 detects the electrodeposition condition switching jig c (when the limit switch c2 is turned on), the light z in the column C of the memory voltage is turned on. To do.

  The 3rd detection means (limit switch) 19 detects the said electrodeposition condition switching jig | tool a-c currently conveyed by the conveyor 11 in the state attached to the said hanger. The limit switch 19 is provided on the downstream side of the electrodeposition tank 13, and is provided at the entrance of the workpiece unloading field. The electrodeposition condition switching jigs a to c are transported by the conveyor 11 while being attached to the hanger, and come into contact with the limit switch 19 when passing through a place where the limit switch 19 exists. As a result, the limit switch 19 is turned on, and the limit switch 19 detects that the electrodeposition condition switching jigs a to c are present in the workpiece lowering field.

  A rotating light with buzzer (notification means) 20 is arranged at the workpiece lowering place, and operates when the limit switch 19 is turned on, and the electrodeposition condition switching treatment carried by the conveyor 11 is performed. The operator is informed that the tools a to c have arrived at the work unloading place.

  A jig removal confirmation button (stop means) 21 is arranged at the workpiece lowering place. When the operator presses the jig removal confirmation button 21, the rotating lamp 20 with the buzzer stops.

  The control means 22 compares the detection result of the first detection means 14 with the detection result of the second detection means 16 so that the electrodeposition condition (voltage applied between the workpieces Wa to Wc and the anode) is Then, it is determined whether or not the condition is changed to an appropriate condition corresponding to the type of the workpieces Wa to Wc. The control means 22 is, for example, a PC, and the conveyor control means 12, the first detection means 14, the voltage generator 15, the second detection means 16, the position detection means, the first display means 17, the second display means 18, the first Three detection means 19, a buzzer-equipped rotating lamp 20, and a jig removal confirmation button 21 are connected.

  Below, the procedure (1)-(10) when the electrodeposition coating system 10 electrodeposits and paints the said workpiece | work Wa is demonstrated with reference to FIG.

  (1) The said hanger is conveyed by the conveyor 11, reaches | attains the said work setting place, and the said workpiece | work Wa is attached to the said hanger. When the work Wa is attached to the hanger, the operator attaches the electrodeposition condition switching jig a to the hanger (S1).

  (2) In a state where the workpiece Wa and the electrodeposition condition switching jig a are attached to the hanger, the workpiece Wa and the electrodeposition condition switching jig a are conveyed by the conveyor 11 and leave the workpiece setting place. At this time, the electrodeposition condition switching jig a comes into contact with the limit switch a2 of the second detection means 16, and the limit switch a2 is turned on (S2). The control means 22 receives a signal (information related to the detection result of the second detection means 16) from the limit switch a2, and stores the received information related to the detection result of the second detection means 16. Further, the lamp x of the second display means 18 is turned on.

  (3) From the time when the limit switch a2 is turned on, the counting means of the position detecting means starts counting of the conveyor count limit switch 23 (S3).

  (4) With the workpiece Wa and the electrodeposition condition switching jig a attached to the hanger, the workpiece Wa and the electrodeposition condition switching jig a are conveyed by the conveyor 11 and pass through a place where the first detection means 14 exists. At this time, the electrodeposition condition switching jig a comes into contact with the limit switch a1 of the first detecting means 14, and the limit switch a1 is turned on. The voltage generator 15 receives the signal from the limit switch a1, and changes the electrodeposition condition so that the voltage applied between the workpiece Wa and the anode becomes A (S4).

  (5) The electrodeposition condition switching signal (information relating to the detection result of the first detection means 14) is transmitted from the voltage generator 15 to the control means 22 (S5). Further, the lamp u of the first display means 17 is turned on.

(6) When the count number of the counting means of the position detecting means reaches a predetermined value, the control means 22 detects the current detection result of the first detecting means 14 and the second at the start of counting by the counting means. It is confirmed whether or not the detection result of the detection means 16 matches (S6). The predetermined value is determined after the workpieces Wa to Wc, which are transported by the conveyor 11 in a state of being attached to the hanger, start from a position where the limit switches a2, b2, and c2 of the second detection unit 16 are present. The count number of the counting means until the space between the limit switches a1, b1, c1 of the detecting means 14 and the electrodeposition tank 13 is reached, and is obtained in advance by experiments or the like.
That is, based on the detection result of the position detection means, the control means 22 indicates that the workpieces Wa to Wc whose types of corresponding electrodeposition condition switching jigs a to c are detected by the second detection means 16 are electrodeposition tanks. 13 and the position at which the first detection means 14 detects the type of the electrodeposition condition switching jigs a to c, the detection result of the first detection means 14 and the second detection It is confirmed whether or not the detection result of the means 16 matches.
When the detection result of the first detection means 14 and the detection result of the second detection means 16 match, the control means 22 determines that the electrodeposition conditions are appropriate, and the conveyor control means 12 causes the conveyor to 11 is continued.
When the detection result of the first detection unit 14 and the detection result of the second detection unit 16 are different, the control unit 22 determines that the electrodeposition condition is inappropriate, and the workpiece Wa is electrodeposited. Before reaching the tank 13, the conveyor control means 12 stops driving the conveyor 11.

  (7) When the control means 22 continues to drive the conveyor 11 by the conveyor control means 12 in the above (6), the workpiece Wa conveyed by the conveyor 11 reaches the electrodeposition tank 13, and the electrodeposition tank 13 Is passed through the electrodeposition bath 13 and is immersed in the paint, and further, the voltage A is applied between the anode and the electrodeposition coating. The work Wa reaches the work lowering place after passing through the electrodeposition tank 13 (S7).

  (8) When the workpiece Wa reaches the entrance of the workpiece unloading field, the electrodeposition condition switching jig a conveyed together with the workpiece Wa comes into contact with the third detection means (limit switch) 19, and the limit switch 19 is Turns on. At this time, the control means 22 receives a signal from the limit switch 19 and activates the buzzer-equipped rotating lamp 20 (S8).

  (9) The operator removes the electrodeposition condition switching jig a from the hanger and presses the jig removal confirmation button 21 (S9). Further, the workpiece Wa is removed from the hanger.

  (10) When the operator presses the jig removal confirmation button 21, the control means 22 receives a signal from the jig removal confirmation button 21 and stops the operation of the rotating lamp 20 with buzzer (S10). . In addition, after receiving the signal from the limit switch 19, the control means 22 determines that it is abnormal when no signal is received from the jig removal confirmation button 21 within a predetermined time, and the conveyor control means 12 drives the conveyor 11. To stop.

As described above, the control unit 22 determines that the workpieces Wa to Wc are based on the detection result of the position detection unit, the electrodeposition tank 13, and the limit switches a1, b1, and c1 of the first detection unit 14. If it is determined that the current detection result is between, the current detection result of the first detection means 14 and the detection result of the second detection means 16 at the start of counting by the counting means are checked. Then, when the detection result of the first detection means 14 and the detection result of the second detection means 16 match, the control means 22 determines that the electrodeposition condition is appropriate, and the first detection means 14 If the detection result is different from the detection result of the second detection means 16, it is determined that the electrodeposition condition is inappropriate.
Thereby, it is possible to accurately determine whether or not the electrodeposition condition is changed to a condition corresponding to the type of the workpieces Wa to Wc.

  In addition, the operator confirms the lights u, v, and w of the first detection means 14 and the lights x, y, and z of the second display means 18 so that the electrodeposition conditions are the types of the workpieces Wa to Wc. It is possible to confirm whether or not the condition has been changed to a corresponding condition.

Moreover, when the detection result of the 1st detection means 14 and the detection result of the 2nd detection means 16 differ, the control means 22 makes the conveyor 11 pass before the said workpiece | work Wa-Wc arrives at the electrodeposition tank 13. FIG. Stop.
Thereby, it is possible to suppress that the workpieces Wa to Wc are electrodeposited under inappropriate electrodeposition conditions.

  In addition, by the jig removal system (third detection means 19, buzzer-equipped rotating lamp 20, and jig removal confirmation button 21), after the electrodeposition coating is completed, the operator can change the electrodeposition condition switching jigs a to c. It becomes possible to suppress forgetting the removal work.

  The voltage generator 15 changes the electrodeposition condition based on the detection result of the first detection means 14, but may change the electrodeposition condition based on the detection result of the second detection means 16.

  Further, when the conveyor control means 12 outputs a conveyor pulse signal when the conveyor 11 is driven, the counting means of the position detection means counts the conveyor pulse signal so that the workpieces Wa to Wc conveyed by the conveyor 11 are counted. The position may be detected. Further, the position detection means is not limited to this embodiment, and the workpieces Wa to Wc being transported by the conveyor 11 while being attached to the hanger are the limit switches a1, b1, c1 of the first detection means 14. And the electrodeposition tank 13 may be used as long as they can be detected.

DESCRIPTION OF SYMBOLS 10 Electrodeposition coating system 12 Conveyor control means 11 Conveyor 13 Electrodeposition tank 14 First detection means 15 Voltage generator 16 Second detection means 17 First display means 18 Second display means 19 Third detection means 20 Rotating light with buzzer 21 Jig removal confirmation button 22 Control means

Claims (4)

An electrodeposition coating system that electrodeposits paint on multiple types of workpieces with different electrodeposition conditions,
Conveying means for conveying the workpiece;
An electrodeposition tank which is provided on the transfer path of the workpiece and contains the paint;
A connecting means attached to the conveying means for connecting the workpiece to the conveying means;
A plurality of types of electrodeposition condition switching means that are detachable from the connection means and correspond to the type of the workpiece;
A first detection unit that is disposed upstream of the electrodeposition tank in the transport path and detects the type of the electrodeposition condition switching unit transported by the transport unit in a state of being attached to the connection unit;
A second detection unit that is disposed on the upstream side of the first detection unit in the transport path and detects the type of the electrodeposition condition switching unit that is transported by the transport unit in a state of being attached to the connection unit;
Changing means for changing the electrodeposition condition to a condition corresponding to the type of the electrodeposition condition switching means detected by the first detection means or the second detection means,
Position detecting means for detecting the position of the workpiece being conveyed by the conveying means in a state of being attached to the connecting means;
Based on the detection result of the position detection means, the workpiece in which the type of the corresponding electrodeposition condition switching means is detected by the second detection means is the electrodeposition tank, and the first detection means is the electrodeposition condition. Control means for confirming whether or not the detection result of the first detection means and the detection result of the second detection means coincide with each other when it is determined that it exists between the position where the type of the switching means is detected. When,
An electrodeposition coating system. The first display means for displaying information relating to the electrodeposition condition corresponding to the type of the electrodeposition condition switching means detected by the first detection means, and the kind of the electrodeposition condition switching means detected by the second detection means And second display means for displaying information related to the corresponding electrodeposition conditions,
The electrodeposition coating system according to claim 1. When the detection result of the first detection means is different from the detection result of the second detection means, the control means stops the conveying means before the work reaches the electrodeposition tank. ,
The electrodeposition coating system according to claim 1 or 2. Third detection means for detecting whether or not the electrodeposition condition switching means being transported by the transport means while being attached to the connecting means is present downstream of the electrodeposition tank;
Informing means that operates when the third detection means detects the electrodeposition condition switching means, and informs an operator that the electrodeposition condition switching means exists downstream of the electrodeposition tank;
Stop means that is an operating tool for stopping the operation of the notification means;
Comprising
The electrodeposition coating system as described in any one of Claims 1-3.

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