JPH0613101B2 - Car coating equipment - Google Patents

Description

Description: TECHNICAL FIELD The present invention relates to a coating apparatus for coating an automobile conveyed along a conveying path, and particularly without increasing coating data for an increase in variations of vehicle types. Regarding what we have made available.

(Prior Art) Conventionally, as a coating apparatus for an automobile of this type, as disclosed in, for example, Japanese Patent Publication No. 50-19577, a plurality of photoelectric devices are arranged in a coating work area of a conveyance path, and each photoelectric device is arranged. The operation timing of the top spray gun (painting gun) and side spray gun (painting gun) is controlled by blocking the radiated light of the device by the car, and the coating film is evenly distributed on the top and side surfaces of cars of different models. It is known to be formed.

In addition, as shown in FIG.
By blocking the light, it is detected that the car m has come to the painting work area based on the change amount of the emitted light, and the detection signal is input to the counter c to operate the counter c. Based on a plurality of pre-stored painting data d, predetermined data (painting spray width, discharge amount, front and rear movable area, etc. for the conveyed vehicle m) is selected based on the vehicle type, and the read signal of the data d is the control unit. By inputting in e, a plurality of coating guns arranged in the above-mentioned coating work area, a pair of upper coating guns f, f arranged in the upper side of the downstream side in the illustrated example, and mounting heights on the upstream side surface side thereof, respectively. Side upper coating guns g, g arranged so that the positions are different.
・ Intermediate side coating guns h, h ・ Lower side coating guns i, i
It is also known that the operation timing of (1) is controlled on the basis of the above data so that the coating film is uniformly formed on the upper surface and the side surface of the bodies of the automobiles m of different vehicle types.

(Problems to be Solved by the Invention) However, the above-mentioned conventional devices have the following problems. That is, in the former case, a large number of photoelectric devices are required to detect the shapes of a plurality of automobiles of different vehicle types, and a control device that operates by receiving a detection signal of each photoelectric device is used as each photoelectric device. There is a problem that the structure is naturally complicated because it needs to be provided in association with each of the devices.

In the latter case, the painting data corresponding to the vehicle type is set by the detection signals of only the pair of photocells a installed upstream of the painting work area, and each painting gun f,
Since each of g, h, and i is operated, the former structural problem is solved, but the operation timing of each of the coating guns f, g, h, and i is summarized in the coating data d for each vehicle type. Since preset data is stored for each vehicle of different vehicle types used for painting, as the number of vehicle types increases, the capacity of the painting data d inevitably increases accordingly, and the controller e becomes large and complicated. There was a problem of doing.

That is, in the coating data d, coating data for one vehicle type as shown in FIG. 5 is stored for each different vehicle type. In the figure, the thick line indicates that a large amount of paint is sprayed from each coating gun f, g, h, i, the thin line indicates that the spray amount is relatively small, and the broken line indicates that the spray amount is zero (paint cut). Is shown in relation to the count number of the counter c. Note that TOP is abbreviated to the above coating gun f, Hs is abbreviated to the side upper coating gun g, Ms is abbreviated side intermediate coating gun h, and Ls is abbreviated side lower coating gun i. Specifically, this painting data shows the case where the vehicle body shape is a sedan, and the counter c is detected by detecting the automobile m by the photoelectric tube a.
When the count number reaches a predetermined value (70) after the start of the above operation, each of the coating guns f, h, i except the side upper coating gun g is activated to start the coating in each coating sharing area of the automobile m, and When the count number of the count c reaches a predetermined value (170), the side surface upper portion coating gun g is activated to start coating the upper side surface portion of the body of the automatic operator m. In addition,
The reason why the amount of spray by each side coating gun g, h, i is changed is that the amount of spray is adjusted according to the change in the shape of the side surface of the body of the car m, and is evenly distributed over the entire side surface of the car m. This is because the paint is sprayed on. For example, at the front and rear fender protrusions, the spray amount by the side middle coating gun h is reduced (where the count number is 100 to 150) and the operation of the side lower coating gun i is stopped (the count number is 90 to 170). (Corresponding place)
The amount of spray is set to zero, and the amount of spray by the middle part of the side surface and the lower coating guns h and i is reduced at the opening side protruding portion of the door (where the count number corresponds to 240 to 260). The amount of paint applied to the side of the body is made uniform. The position of the opening-side protruding portion of the rear door corresponds to the position of the rear fender protruding portion, and therefore the rear door is painted at the same time. Such complex painting data is required for each vehicle type.

The present invention has been made in view of the above point, and a purpose thereof is to provide a notchback type or a hatchback type, a three-door type or a five-door type, and a general protection type even for vehicles of different types. Paying attention to the fact that it is possible to use common painting data when painting the top and side surfaces of an automobile body by classifying it as rust or heavy rust prevention, and painting according to the specifications of each painting gun based on this classification. By setting the conditions in advance, extracting the coating conditions from these according to the vehicle type and specifications, combining them to create coating data, and operating each coating gun based on this coating data, the variation of the vehicle type It is to simplify the setting of the coating data by making it possible to deal with the increase of the coating data without increasing the coating data.

(Means for Solving the Problem) In order to achieve the above-mentioned object, the present invention is directed to a coating apparatus for coating a body of an automobile conveyed along a conveyance path, and the following means for solving the problems have been taken. .

That is, the solution means of the present invention is to provide a plurality of coating guns along the conveying path so that the body of the automobile is divided into a plurality of coating regions and the divided coating is performed. Further, a vehicle type setting device for setting the vehicle type and specifications of the conveyed automobile, and a vehicle body detector for detecting that the conveyed automobile has reached the work area for each of the coating guns are provided. Further, a coating data storage circuit is provided for a plurality of automobiles of different vehicle types, in which the coating conditions for each of the coating guns are divided and the coating conditions according to the vehicle type and specifications are stored. By selecting the coating conditions of each coating gun for the specifications from the coating data storage circuit and combining them, the coating data corresponding to the conveyed car is created, and the operation of the coating gun is detected by the detection of the vehicle body detector. It is characterized by having a coating gun control device that operates according to the coating data.

(Operation) With the above configuration, in the present invention, the operation of each coating gun is controlled by the coating gun control device in response to the detection signal from the vehicle body detector based on the coating data set by the coating control device. The car body is painted. At that time, when setting the coating data in the coating data storage circuit of the coating gun control device, divide the coating areas of each coating gun for a plurality of vehicles of different vehicle types and set the coating conditions according to the vehicle type and specifications. It is set beforehand, and by appropriately selecting and combining this based on the vehicle type and specifications from the vehicle type setter, common painting data is used for the same painting conditions as other vehicles, so Even if the number of variations increases, the painting data does not increase, and the painting is performed on the top and side surfaces of the vehicle body with a small amount of painting data.

(Example) Hereinafter, the Example of this invention is described based on drawing.

FIG. 1 shows a schematic configuration of an automobile coating apparatus according to an embodiment of the present invention, where 1 is a conveying path, M is an automobile conveyed by a trolley 2 on a conveying path 1, and 3 is a vehicle across the conveying path 1. It is a cantilevered support frame provided in the painting work area. The supporting frame 3 is provided with a standing column 4 standing upright on one side of the coating work area of the transport path 1 and supported by the vertical column 4 so as to be able to move up and down, and is perpendicular to the transport direction at a predetermined height above the transport path 1. The cross beam 5 extends in the direction. A pair of upper coating guns 6 and 6 for coating the upper surface of the body of the automobile M are suspended and supported on the cross beam 5 at predetermined intervals. Also,
An elevating device (not shown) is installed in the vertical pillar 4,
The horizontal beam 5 is vertically reciprocated by the operation of the lifting device, and a horizontal reciprocating device (not shown) is installed in the horizontal beam 5. The horizontal reciprocating device is operated to operate the pair of upper coatings. The guns 6 and 6 are reciprocally moved in a direction traversing the transport path 1, and thus the pair of upper coating guns 6 and 6 are reciprocally moved vertically and horizontally by the operation of both the lifting device and the horizontal reciprocating device. As a result, the upper surface of the body of the automobile M is painted.

A plurality of vehicle body side surface coating guns 7 to 9 having different mounting height positions are provided on both sides of the transport path 1 downstream of the support frame 3 (upper coating guns 6 and 6) at predetermined intervals. It is arranged. In the example shown in the drawing, the upper side coating gun 7, the middle side coating gun 8 and the lower side coating gun 9 are arranged in order from the upstream side to the downstream side, and the mounting height positions are made variable in order to be symmetrical on both sides. Stand 1
No. 0 is attached, and the upper and lower width regions of the side surface of the body of the automobile M are shared. In this way, the plurality of coating guns 6 to 9 provided along the conveying path 1 so as to divide the body of the automobile M into a plurality of coating regions and share the coating are rotated by the action of centrifugal force. It is configured to be sprayed, and the paint is charged to about -90 KV in order to improve the coating efficiency.

Reference numeral 11 denotes a vehicle body detector which is arranged near the upstream side of the coating work area of the transport path 1 and is composed of, for example, a photoelectric tube. The vehicle body detector 11 is transported through the transport path 1 and the coating guns 6 to 9 are provided. The vehicle M that has come to the work area is detected, and this detection signal is input to the coating gun control device 16. Denoted by 12 are a plurality of selection buttons provided on the carry-in side of the transport path 1, and a predetermined selection button 12 is pressed according to the vehicle type of the automobile M carried into the transport path 1. Then, a corresponding detector among the detectors (not shown) composed of a plurality of photocells provided for each vehicle type according to the vehicle type of the automobile M to be painted is operated. Further, a bar code 13 and a broadcast 14 are provided in the automobile M, and the car M detects the data of the barcode 13 and the broadcast 14 by blocking the emitted light of the detector (photoelectric tube).
The shape and rust prevention specifications are set. That is, the selection button 12, the bar code 13, and the broadcast 14
Therefore, a vehicle type setting device 15 for setting the vehicle type and specifications of the conveyed automobile M is configured. The setting signal of the vehicle type and the specification of the automobile M by the vehicle type setting device 15 is input to the coating gun control device 16.

The coating gun control device 16 is for each coating gun 6-9.
For controlling the operation of the paint data storage circuit 1
7, a counter 18, and a control unit 19 including a CPU. The painting data storage circuit 17 stores the painting conditions for each of the painting guns 6 to 9 for a plurality of automobiles M ... Then, the control unit 19 reads a setting signal of the vehicle type and the specification from the vehicle type setting unit 15, and according to the setting signal, the coating conditions of the respective coating guns 6 to 9 corresponding to the specification are read from the coating data storage circuit 17. By appropriately selecting and combining them, the coating data corresponding to the conveyed automobile M is created. Table 1 exemplifies the data items of the coating conditions stored in the coating data storage circuit 17 for each coating gun 6-9. In Table 1, TOP is abbreviated to the coating gun 6, Hs is a lateral upper coating gun 7, Ms is a lateral intermediate coating gun 8, and Ls is a lateral lower coating gun 9. Also, for example, 3DrHB is a 3-door hatchback type, NB is a notchback type, S
/ R is an abbreviation for a solar room type vehicle.

Further, the counter 18 is connected to the vehicle body detector 11 and operates in response to a detection signal from the vehicle body detector 11 that detects the automobile M transported on the transport path 1, and controls based on the number of counters. The section 19 operates each of the coating guns 6 to 9 in accordance with the coating data created for the automobile M. That is, the coating of the upper surface and the side surface of the body of the automobile M by the above-mentioned coating guns 6 to 9 is started.

Further, the coating gun control device 16 has a second
As shown in the figure, a vehicle type / specification selection storage circuit 20 that stores the vehicle type and specifications in advance for matching with the vehicle type and specifications set by the vehicle type setting device 15, and the counter 1 described above.
The tact input conversion device 21 that sets the operation timing of each of the coating guns 6 to 9 in relation to the operation of No. 8, and the coating data created by the control unit 19 is temporarily stored until the vehicle body detector 11 operates. A data temporary storage circuit 22 and an input / output operation means 23 for inputting / outputting to / from the control unit 19 are provided, which are the vehicle body detector 11 and the vehicle type setting device 1 described above.
5, a coating data storage circuit 17, a counter 18, and a control unit 19 are connected so that signals can be exchanged.

Next, the control unit 19 of the coating gun control device 16
The operation will be described with reference to the flowchart of FIG. First, in step S _{1, the} vehicle type setting device 15 (select button 1
2, bar code 13, the setting signal of models and specifications of the motor vehicle M is input by broadcast 14), determination of the vehicle type and specifications based on the vehicle type and specifications stored in the vehicle type and specifications selection storage circuit 20 in step S ₂ I do. Then, in step S _3, by combining with selected coating conditions for each coating gun 6-9 for the specifications from the painting data memory circuit 17 in accordance with the determined vehicle type and specifications, automobile M which has been conveyed Create painting data corresponding to. The paint data is temporarily stored in the painting data temporary storage circuit 22 in step S _4, waits for the detection signal of the vehicle body detector 11 is inputted.

On the other hand, when the detection signal from the vehicle body detector 11 is input at step S _5, resets the count 18 at step S _6, starts counting of the counter 18 at step S _7. Then, reading of the paint data that have been temporarily stored in step S ₄ at the same time as the count start is made in step S _8, actuates the respective spray gun 6-9 on the basis of the painting data in step S _9, automobiles Painting of the upper and side surfaces of the M body is started.

Therefore, in the automobile coating apparatus of the above-mentioned embodiment, even in the case of automobiles M of different vehicle types, there are some common coating conditions depending on the coating location, so common coating data should be used for common locations. Therefore, it is possible to reduce the number of painting data, and it is possible to perform painting on the upper surface and side surfaces of the body of the automobile M with a small amount of painting data without increasing painting data even if variations of vehicle types increase. .

Further, one of the plurality of coating conditions set for each of the coating guns 6 to 9 is appropriately selected and combined with desired coating conditions according to the specifications to set one coating data. It is possible to make the operation of each of the coating guns 6 to 9 that respectively share the upper surface and the side surface of the body appropriate for the vehicle type and specifications of the vehicle M. A uniform coating film can be formed on the entire surface without unevenness in film thickness.

Furthermore, since the common painting data is effectively used, it is possible to set painting data that is more diverse than the conventional painting data of the same capacity, and it is possible to perform painting that is sufficiently compatible with an increase in vehicle variations. You can

(Effects of the Invention) As described above, according to the vehicle coating apparatus of the present invention, even if the vehicle type is different, common coating data is used depending on the coating area. Simplification of setting of painting data compared to the conventional example in which painting data for one car type is set in one batch for each
Therefore, even if the number of variations of the vehicle type increases, it is possible to cope with the painting on the upper and side surfaces of the body of the automobile with less painting data, and the control device can be simplified.

[Brief description of drawings]

1 to 3 show an embodiment of the present invention, FIG. 1 is a schematic configuration diagram of an automobile coating device, FIG. 2 is a configuration diagram of a coating gun control device, and FIG. 3 is a coating gun control device. It is a flowchart figure explaining operation | movement of a control part. 4 and 5 show a conventional example, FIG. 4 is a schematic configuration diagram for explaining a coating procedure, and FIG. 5 is a diagram showing coating data for each coating gun for one vehicle type. 1 ... conveyance path, 6-9 ... painting gun, 11 ... body detector, 15 ... vehicle type setting device, 16 ... painting gun control device, 17 ... painting data storage circuit, M ... vehicle.

Claims (1)

[Claims] 1. A painting apparatus for painting a body of an automobile conveyed along a conveying passage, the coating device being provided along the conveying passage so as to divide the body of the automobile into a plurality of painting areas and divide the coating. Multiple coating guns, a vehicle type setter that sets the type and specifications of the transported vehicle, a vehicle body detector that detects when the transported vehicle has arrived in the work area with each of the coating guns, and multiple vehicle models of different vehicle types. The car is equipped with a coating data storage circuit that stores the coating conditions according to the vehicle type and specifications for each coating area of each of the above-mentioned coating guns. By selecting the painting conditions from the painting data storage circuit and combining them, the painting data corresponding to the conveyed car is created, and the movement of each painting gun is detected by the detection of the vehicle body detector. A coating device for an automobile, which is provided with a coating gun control device for operating the work according to the coating data.