KR100765601B1 - System for taking in and out vehicles from color selection buffer and method thereof - Google Patents

Abstract

The present invention relates to a vehicle induction and withdrawal system and method of the color selection buffer, which is composed between a midway process and a topcoat process of a paint shop, which consists of a plurality of lanes to seat and transport at least one vehicle in each lane. The vehicle inlet / outlet system comprises: inlet and outlet side barcode scanners each configured at the inlet side and the outlet side of the color selection buffer and attached to one side of the vehicle body to read a bar coder containing vehicle information; A stopper for each lane configured on each lane in the color selection buffer to control the progress of the withdrawal vehicle; And a vehicle having the same color as the vehicle to be drawn in when the vehicle is drawn in to the lane of the color selection buffer based on the vehicle information input from the entrance and exit bar code scanners. Operation of the stopper for each lane so that vehicles are drawn in lanes with fewer vehicles, and vehicles are drawn out in lanes with the highest number of vehicles among lanes of the color selection buffer in which vehicles of the same color exist as vehicles previously drawn out. It characterized in that it comprises a control unit for controlling. Accordingly, by storing the color of the vehicle loaded in the color selection buffer in advance and using the information in the drawing and withdrawal algorithm, the drawing and drawing efficiency according to the color selection can be improved, and the efficiency of rain management of the paint shop can be improved. Can be.

 Color selection buffer, vehicle withdrawal method, paint shop

Description

Vehicle entry and withdrawal system of color selection buffer and method thereof {SYSTEM FOR TAKING IN AND OUT VEHICLES FROM COLOR SELECTION BUFFER AND METHOD THEREOF}

1 is a process diagram of a typical paint shop,

2 is an operation flowchart of a vehicle drawing method of a conventional color selection buffer;

3 is a configuration diagram of a vehicle drawing system of a color selection buffer of a painting factory to which the present invention is applied;

4 is an operation flowchart of a vehicle drawing method of a color selection buffer according to the present invention;

5 is an operation flowchart of a vehicle drawing method of a color selection buffer according to the present invention;

<Description of Symbols for Major Parts of Drawings>

 1: vehicle at entrance 7: vehicle at exit

 9: Top booth 10: Color selection buffer

15: controller

The present invention relates to a vehicle withdrawal system and method of a color selection buffer, and more particularly, to a color selection buffer for improving the withdrawal efficiency of each color in the withdrawal portion of the color selection buffer in the paint shop before the top coat process. A vehicle drawing system and method thereof are provided.

In general, in the production process of automobiles, painting of the car body requires a high degree of rust prevention and aesthetics. Therefore, it has a complicated process compared to general coating, and is intended for pretreatment, electrodeposition process and aesthetics mainly for rust prevention. Medium process and top process are the basics.

That is, each process of the vehicle body painting factory is to prevent corrosion of the vehicle body after the completion of the vehicle body, to enhance the commerciality by making the beautiful appearance with sound insulation, as shown in Figure 1, is attached to the inner and outer plates of the vehicle body The car body that has passed through the drying furnace of the pretreatment step (100) and the pretreatment step (100) to completely remove the dirt and oils and to form a phosphate coating to improve the corrosion resistance of the iron plate surface and the adhesion to the electrodeposition paint. Electrodeposition is carried out in the electrodeposition paint, and evenly coated on the outer plate as well as the inside of the vehicle body. The coating film is formed through a mid-stage process (S130) to have sex, smoothness, weather resistance, and the like, and a top-stage process (S140) to give an aesthetic appearance and glossiness.

As such, when painting is completed on the vehicle body, dust, dirt, scratches, etc. on the surface of the coating are inspected through an external inspection (S150) and an external inspection (S150) that inspect the exterior of the vehicle through visual inspection. After repainting through the top coat process (S140), or through a modification process (S160), such as a polishing operation, it is made to enter the design factory.

In each process of the paint shop, a color selection buffer (C / S) is provided between the midway step (S130) and the top coat step (S140) so that the vehicle having the halfway paint is waiting before the topcoat booth, It is used for grouping by color to minimize the loss of paint generated by the cleaning operation for changing the color of the coating automatic machine in the top booth.

That is, before the top coat process (S140), in order to increase the color-specific drawing efficiency in the withdrawal portion of the color selection buffer had a structure that the operator withdraws manually.

However, this caused a large variation in color input to the top coat process depending on the condition of the worker and the ability to work, and the production environment of the paint shop and top booth could not be properly reflected, and thus, grouping by color was not possible under optimum conditions. . In other words, the draw-in and draw-out is dependent on the operator's experience, so it is difficult to reflect the information of the vehicle in real time.

In addition, it does not adequately cope with changes in the production environment, such as equipment failure, and, in severe cases, there is a problem that unnecessary empty pitch may be generated when the top coat booth.

On the other hand, Patent Application No. 2004-32950, filed by the present applicant, discloses a technology for improving color selection efficiency by determining the drawing order in real time by analyzing the composition ratio of each color of the vehicle loaded in the color selection buffer. It is.

However, the above technique applies the withdrawal logic, withdraws all the withdrawal groups, and then withdraws the logic again, which is efficient when the number of color selection buffers is about 10 or more, but is not applicable when the number of color selection buffers is small. There is a disadvantage that is impossible and inefficient.

Accordingly, the present invention has been made to solve the above problems, by analyzing the color of the vehicle loaded in the color selection buffer to determine the drawing order in real time to improve the color selection efficiency to draw and withdraw, the lane of the painting factory It is an object of the present invention to provide a vehicle pick-up and take-out system and method of a color selection buffer that can improve management efficiency.

The present invention for achieving the above object is composed of a middle process and a top coat process of the painting factory, consisting of a plurality of lanes to draw and withdraw the vehicle of the color selection buffer for transporting at least one vehicle in each lane A system comprising: entrance and exit bar code scanners configured at each of an entrance and an exit side of the color selection buffer and attached to one side of a vehicle to read a bar coder containing vehicle information; A stopper for each lane configured on each lane in the color selection buffer to control the progress of the withdrawal vehicle; And a vehicle having the same color as the vehicle to be drawn in when the vehicle is drawn in to the lane of the color selection buffer based on the vehicle information input from the entrance and exit bar code scanners. Operation of the stopper for each lane so that vehicles are drawn in lanes with fewer vehicles, and vehicles are drawn out in lanes with the highest number of vehicles among lanes of the color selection buffer in which vehicles of the same color exist as vehicles previously drawn out. It is achieved by including a control unit for controlling the.

The control unit compares the color of the vehicle to be drawn in with the vehicle of each lane of the color selection buffer when the vehicle is pulled in, and if the same vehicle color as the color of the vehicle to be drawn is not present in all lanes of the color selection buffer, It is desirable to bring in a vehicle.

When the vehicle is withdrawn, it is preferable that the controller first withdraws the vehicle closest to the withdrawal port among lanes in which vehicles of the same color exist.

The vehicle information preferably includes color information and location information of a vehicle located at a specific position in the color selection buffer.

On the other hand, the above object, according to another aspect of the present invention, the inlet and outlet side barcode scanners respectively configured on the inlet and outlet side of the color selection buffer formed between the intermediate process and the top coat process of the paint shop, It is configured on each lane in the selection buffer to control the operation of the stopper for each lane using the stopper for each lane to control the progress of the withdrawal vehicle and the vehicle information input from the entrance and exit bar code scanners A method of drawing a vehicle into the color selection buffer in a vehicle drawing system of a color selection buffer including a controller, wherein the vehicle information received from the entrance bar code scanner is converted into color and position information of each vehicle in the color selection buffer. Storing and managing; Detecting a color of the vehicle to be pulled in; Determining whether a vehicle having the same color as the detected color exists in a predetermined lane of the color selection buffer; If the determination result is present in a predetermined lane of the color selection buffer, the vehicle is also achieved by the vehicle retracting method of the color selection buffer comprising the step of entering the lane with the least vehicle among lanes in which the vehicle of the same color exists. Can be.

Here, when there is no lane in which the vehicle of the same color exists, it is preferable to further include the step of introducing the vehicle to the lane with the lowest number of vehicles among the lanes.

On the other hand, the above object, according to another aspect of the present invention, the inlet side and the outlet side barcode scanners respectively configured on the inlet side and the outlet side of the color selection buffer formed between the intermediate process and the top coat process of the paint shop, The lane stopper is configured on each lane in the color selection buffer to control the progress of the withdrawal vehicle, and the operation of the stopper for each lane is performed using vehicle information input from the entrance and exit bar code scanners. A method for withdrawing a vehicle from the color selection buffer in a vehicle withdrawal system of a color selection buffer including a controller for controlling the progress of the withdrawal vehicle by controlling the vehicle information received from the entrance bar code scanner; Storing and managing color and location information of each vehicle in the vehicle; Detecting and storing the color of the vehicle withdrawn from the color selection buffer by the exit bar code scanner; Reading out the color of the vehicle previously drawn out from the color selection buffer; Determining whether a vehicle of the same color as the read color exists in the lane of the color selection buffer; It can also be achieved by including the process of withdrawing the vehicle to the lane with the most vehicles among the lanes of the color selection buffer in which the vehicle of the same color exists.

Here, if the vehicle of the same color does not exist in the lane of the color selection buffer during the withdrawal of the vehicle, it is preferable to include the process of selecting and withdrawing the vehicle from the lane with the most vehicles among the plurality of lanes.

Preferably, the method further includes the step of first withdrawing the vehicle closest to the outlet from among a plurality of lanes in which vehicles of the same color exist when the vehicle is withdrawn.

Hereinafter, the present invention will be described in detail with reference to the accompanying drawings.

Figure 2 is a configuration of the vehicle drawing and withdrawal system of the color selection buffer of the painting factory to which the present invention is applied, the configuration of the vehicle drawing and withdrawal system of the color selection buffer according to an embodiment of the present invention is the intermediate process of the painting factory ( Inlet and outlet bar coder scanners BS1 and BS2 are formed at the inlet and outlet sides of the color selection buffer C / S formed between M) and the top coat process U, respectively. It reads the bar coder attached to the vehicle information and outputs the signal to the controller (C).

And each lane (Line) in the color selection buffer (C / S) is provided with a stopper for each lane (ST) for controlling the progress of the withdrawal vehicle, the stopper (ST) for each lane and the controller (C) It is electrically connected to operate according to the control signal of the controller (C).

That is, the controller C controls the progress of the withdrawal vehicle by controlling the operation of the stopper ST for each lane using the vehicle information received from the entry and exit bar code scanners BS1 and BS2. Will be done.

Referring to FIG. 4, a vehicle inflow and outflow method from the color selection buffer according to the vehicle inflow and outflow system having such a configuration is as follows.

4 is an operation flowchart of the vehicle drawing method of the color selection buffer according to the present invention, and FIG. 5 is an operation flowchart of the vehicle drawing method of the color selection buffer according to the present invention. As shown in FIG. 4, in step S1, the controller C transmits the vehicle information received from the entrance-side bar coder scanner BS1 to the color (color) and position of each vehicle in the color selection buffer C / S. Store and manage as information. That is, in FIG. 2, vehicles located in the first row 11 of the first lane and the first and second rows 21 and 22 of the second lane in the color selection buffer C / S are red, Vehicles located in the first and second rows 25 and 26 of the second lane are blue, and vehicles located in the second row 32 of the third lane are yellow and the like, and are located in the color selection buffer C / S. It is stored as color information of the vehicle located at. 2 illustrates a case where the color (color) information of the vehicle located at the exit side of the color selection buffer C / S is red.

In step S1, the controller C determines whether the vehicle is drawn into the color selection buffer. When the vehicle is pulled in, in step S3, color information of the vehicle located at a specific position in the color selection buffer C / S and color information of the vehicle located at the exit side of the color selection buffer C / S are received. do. In operation S5, it is determined whether a vehicle having the same color of the vehicle to be pulled in is in the lane. In operation S7, the vehicle is introduced into the lane having the least number of vehicles among lanes having the same color vehicle. On the other hand, if there is no vehicle that is the same as the color of the vehicle to be pulled in all lanes, the vehicle is drawn in the lane with the smallest number of vehicles in step S9.

On the other hand, the vehicle withdrawal method of the color selection buffer according to the present invention, as shown in Figure 5, in step S11, it is determined whether the vehicle is drawn from the color selection buffer. If the vehicle is withdrawn, the controller C stores the vehicle information received from the entrance-side bar coder scanner BS1 as color (color) and position information of each vehicle in the color selection buffer C / S. Manage.

Subsequently, in step S15, the color (color) information of the exit vehicle of the color selection buffer C / S is received from the exit side barcode scanner BS2 to detect the color of the vehicle currently located at the exit side.

In step S17, the color of the vehicle that has been previously drawn and sent to the first booth (or the second booth) is read. In step S19, it is checked whether the same vehicle color as that of the vehicle read out is in the lane of the color selection buffer. As a result of the check, if it is determined in step S21 that the vehicle of the same color is in multiple lanes, the lane in which the vehicle is the most selected is selected in step S23, and the drawing in the color selection buffer C / S is performed according to the selected result in step S25. By controlling the operation of the stopper ST of the lane, the same color vehicle is drawn out from the selected lane.

On the other hand, if the vehicle of the same color is not in the lane of the color selection buffer as a result of the determination in step S19, the lane to be withdrawn in the color selection buffer (C / S) according to the result selected in step S22 in the lane with the largest number of vehicles in step S20 By controlling the operation of the stopper ST, the selected vehicle is taken out.

As a result, an optimum vehicle drawing and drawing of the color selection buffer ST is achieved, and a drawing system and an algorithm thereof can be established to increase the drawing efficiency of each color at the drawing part of the color selection buffer before the top coat process. have.

According to this configuration, when the number of color selection buffers is small (for example, 8 or less), by automatically performing an algorithm for automatically pulling in and out the vehicle, and withdrawing one by one each time the entry and withdrawal vehicle is determined. As a result, logic can be simplified and efficiency can be increased.

As described above, according to the present invention, according to the present invention, as described above, the vehicle drawing-in and take-out system of the color selection buffer according to the present invention and the method thereof, store the color of the vehicle loaded in the color selection buffer in advance, By using the withdrawal algorithm, the withdrawal and withdrawal efficiency according to the color selection can be improved and withdrawn, and at the same time, the efficiency of the rain management of the paint shop can be improved.

In addition, it is possible to minimize the fluctuation of color input to the top coat process by excluding the worker's condition and work ability, and it is possible to select the color as the optimal condition by properly reflecting the changes in the production environment of the paint shop and the top booth.

Claims (9)

In the vehicle intake and take-out system of the color selection buffer which is composed between the intermediate process and the top coat process of the painting factory, which consists of a plurality of lanes to seat and transport at least one vehicle in each lane, Entrance and exit bar code scanners configured at the entrance and exit sides of the color selection buffer, respectively, and attached to one side of the vehicle body to read a bar coder containing vehicle information; A stopper for each lane configured on each lane in the color selection buffer under the control of a controller to control the progress of the withdrawal vehicle; And A vehicle among lanes of the color selection buffer in which a vehicle of the same color as the vehicle to be drawn in when the vehicle is drawn into the lane of the color selection buffer is based on vehicle information input from the entrance and exit bar code scanners. In order to allow the vehicle to be drawn in the lane with the fewest numbers, and the vehicle is withdrawn from the lane with the highest number of vehicles among the lanes of the color selection buffer in which the vehicle of the same color exists as the previously withdrawn vehicle. And a control unit for controlling the operation of the color selection buffer. The method of claim 1, wherein the control unit compares the color of the vehicle to be pulled in with the vehicle and the vehicle of each lane of the color selection buffer, and if there is no vehicle that is the same as the color of the vehicle to be drawn in all lanes of the color selection buffer, A vehicle selection and withdrawal system of a color selection buffer, characterized in that the vehicle is introduced into the lane with the least vehicle count. The system of claim 1, wherein the control unit first withdraws the vehicle closest to the outlet through the number of vehicles among lanes in which vehicles of the same color exist when the vehicle is withdrawn. The system of claim 1, wherein the vehicle information includes color information of a vehicle located at a specific position in the color selection buffer. Inlet and outlet bar coder scanners respectively formed at the inlet and outlet sides of the color selection buffer formed between the midway process and the top coat process of the paint shop, and on each lane in the color selection buffer to advance the withdrawal vehicle. In the vehicle withdrawal system of the color selection buffer including a stopper for each lane to control the control unit for controlling the operation of the stopper for each lane using the vehicle information input from the entrance and exit bar code scanners In the method of drawing the vehicle into the color selection buffer, Storing and managing vehicle information received from the entrance bar code scanner as color and position information of each vehicle in the color selection buffer; Detecting a color of a vehicle to be pulled in; Determining whether a vehicle of the same color as the detected color exists in the lane of the color selection buffer; And if it is present in the lane of the color selection buffer, entering the lane having the least number of vehicles among lanes in which the vehicle of the same color exists. The method of claim 5, And if the lane in which the vehicle of the same color exists does not exist, introducing the vehicle to the lane having the lowest number of vehicles among the lanes. Inlet and outlet bar coder scanners respectively configured on the inlet and outlet sides of the color selection buffer formed between the midway process and the top coat process of the paint shop, and on each lane of the color selection buffer, A color control unit for controlling the progress of the withdrawal vehicle by controlling the operation of the stopper for each lane by using the stopper for each lane for controlling the progress and the vehicle information input from the entrance and exit bar code scanners A method for withdrawing a vehicle from the color selection buffer in a vehicle withdrawing system of a selection buffer, Storing and managing vehicle information received from the entrance bar code scanners as color and position information of each vehicle in the color selection buffer; Detecting and storing the color of the vehicle withdrawn from the color selection buffer by the exit bar code scanners; Reading out the color of the vehicle previously drawn out from the color selection buffer; Determining whether a vehicle of the same color as the read color exists in the lane of the color selection buffer; And drawing out the vehicle in the lane having the most vehicles among the lanes of the color selection buffer in which the vehicle of the same color exists. The method of claim 7, wherein If the vehicle of the same color does not exist in the lane of the color selection buffer when the vehicle is withdrawn, selecting and withdrawing the vehicle from the lane with the most vehicles among a plurality of lanes; . The method of claim 7, wherein The method of claim 1, further comprising: first withdrawing the vehicle closest to the outlet through priority among the plurality of lanes in which vehicles of the same color exist.

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