JPS62250962A - Equipment for continuously painting metal strip plate - Google Patents

Abstract

PURPOSE:To enhance the yield and efficiency in multikinds and small-quantity production, by arranging two sets of painting apparatuses, each of which is equipped with two painting units, the moving apparatus thereof and two washing devices, along a strip plate running path so as to leave an interval therebetween. CONSTITUTION:During the painting of a strip plate S by the painting unit 1A of a first set of a painting apparatus I, the painting unit 2A of a second set of a painting apparatus II is present at a stand-by position P2 and painting units 1B, 2B are washed. In replacing painting, the painting unit 1A immediately after painting is retracted to a stand-by position P1 and an applicator roll is separated from the strip plate S. The painting unit 2A performs reverse operation in timing leaving no unpainted part in the strip plate S and presses the applicator roll to the strip plate S to perform painting. An entry and exit truck is allowed to run to move the painting unit 1A to a washing position W11 to perform washing and painting units 1B, 2B are successively subjected to painting thereafter.

Description

DETAILED DESCRIPTION OF THE INVENTION (Industrial Field of Application) The present invention relates to continuous coating equipment for metal strips using a roll coater method.

(Prior Art) In recent years, with the trend towards high-mix, low-volume production of products, many types of coated strips have been manufactured by tA. Most of the coating of I1''I& is done by the roll coater method, in which the moving strip is coated continuously.In order to handle many types of coating, it is necessary to cover the coating during the painting process, and the coating equipment is required. However, with the roll coater method, new paint must be supplied after the paint adhering to the coach ink roll is removed, so painting can be done quickly. It was difficult to do.

As a solution to this problem, for example, there is a roll coater type coating apparatus disclosed in Japanese Patent Publication No. 80-58552. Figure 6 is the lr side view of this “A” position.
As shown in the drawing, it is equipped with two painting devices 91 and 92, each mounted on a stand 94 and running left and right on the rail 9. A cleaning device 97 is arranged on the side of the painting position. When performing painting by pressing the applicator roll 39 against the metal strip S, a gap is provided between the applicator rolls 99 that are in contact with the strip S, and a single weight 94 is driven. Now, painting equipment 9I is currently being painted.
Run the rail 95L and take it out of the line from the painting line position.Instead, after completing cleaning with the washing exterior 2197, the waiting painting equipment 7t92 is pulled into the painting line position and paints the band & S. , the coating equipment W191 waiting outside the line while coating is being performed by the coating device 92 is cleaned by the cleaning device 97.

(Problems to be Solved by the Invention) 1- In the conventional roll coater type coating device, coating is performed after providing a gap between the applicator roll 99 and the metal band &S!
The next coating will be started after a time interval corresponding to the movement time of the a device. During this switching time.

The metal strip may be stopped or run continuously. When stopping, the normal line configuration is to set up the oil treatment equipment and baking furnace after IiO of the coating equipment, so the quality of the strips stored in this area will be impaired. In the case of continuous running, unpainted portions occur on the strips and these portions are not used as products. Therefore, in either case, low F in yield and efficiency cannot be avoided.

Furthermore, with the recent high-mix, small-volume production, the shortest loft can sometimes complete painting in a shorter time than it takes to clean the rolls with a cleaning device.

This invention was made in order to solve the above-mentioned problems, and it is possible to improve the yield and efficiency, and also to solve the problem of high-volume and rare items.1. 1) To obtain continuous coating of metal strips capable of f+7 production, 9 equipment.

(Means for Solving the Problems) The coating equipment of the present invention is arranged at intervals along the strip running path.
A set of painting equipment is installed. Two sets of coating devices are arranged vertically apart when the strip is running vertically, and with a horizontal spacing when the strip is running horizontally. Each coating device includes two coating units, a coating unit moving device, and a cleaning device.

The coating unit has a coating roll, a roll rotation drive and a paint pan. The coating roll consists of a pickup roll, transfer roll and applicator roll.

A rotary drive device rotates each of these rolls.

From an explosion-proof point of view, it is desirable that the roll rotation drive device be an AC motor or a hydraulic motor that does not generate sparks.

The cleaning devices are located on both sides of the strip path away from the painting location. The cleaning device is equipped with a cleaning liquid spray nozzle, a cleaning liquid tank for supplying cleaning liquid to the nozzle, a pump, a waste liquid collection tank, etc., as in conventional devices.

Painting unit transfer #J equipment includes one truck, electric motor, hydraulic system,
Or it consists of a crane, etc. An electric motor or hydraulic system drives the painting unit 4121 and the trolley. The crane lifts and moves the painting unit.

Then, the painting unit moving device moves the painting unit along the entrance/exit path from the painting position to the cleaning position.

(Function) The coating units of the first set of PLI equipment are connected to IA and 1.
B. The painting units of the second set of painting equipment are 2A and 2.
Let it be B. Assuming that the first group of painting units 2A is currently painting, the second group of painting units 2A is waiting at the painting position. When repainting, pull the coating roll of painting unit l^ away from the strip and remove the coach dangling roll of painting unit 2A. iF
Press it against the board. The coating roll is pulled! The first set of painting units IA separated by 1 is immediately moved to the cleaning position through the access passage. At the same time, painting unit 1 of the same group
B moves from the cleaning position t to the painting position through the entrance/exit passage and waits. During the 0th repainting, painting is performed by painting unit 2) 1B instead of painting unit 2A.
Cleaning of IA! This is done while the Ii unit/) 2A and the painting unit) 1B are painting. Thereafter, operations such as painting, repainting, cleaning, etc. are performed continuously in the same manner.

While the two painting units/ ) are taking turns painting, wash the painting units of each group? 71, the cleaning work can be done in 1 minute before the first painting. Furthermore, since the primary coating unit is on standby at the coating position during the coating process, the moss coating can be immediately applied without stopping the coating line and without leaving any unpainted areas.

(Example) FIG. 1 is a perspective view showing the working position for painting, washing, etc. of the continuous coating equipment of the present invention.

As shown in the drawing, the strip S is guided by a backup roll 4 arranged at 1:y and runs vertically. 1) of the running path of the strip S. The first painting position C1 and the second painting position are shown below.
Painting position Zt C2 is provided, and each painting position CI
, C2 is moved away from the strip S and the standby position νJa i? tP+ and P2 are adjacent. νJ replacement standby position 21
The cleaning positions are wll and w on both sides of P I and P2 respectively.
12. and w21. w2. is provided. Painting position C+ and painting position C2, respectively: jS1 set of painting equipment■ and 2nd set of painting equipment'j! This is the painting position of iII.

Fig. 2 is a top view of the entire coating equipment I of JS I ML.

Paint level? A rail 54 of an entrance/exit passage extending from 1C1 to cleaning positions Wll and W+2 extends. An entry/exit platform type 51 carrying a painting unit (IA or 1B) runs on the rail 54 of the entrance/exit road.

The second set of painting equipment n is also configured in the same way: jS1
It is located directly below the painting equipment I of the set.

Figures 3 and 4 are front and side views of the painted 22) 1B 0w1! The mounting unit 1B is the 1st W4 moving base 1
1, extending in a direction perpendicular to the entrance/exit rail 54,
The first sliding platform 11 is connected to the entrance/exit cart 5 via the guide 12 provided on the L entry/exit platform east 511! 4127 above.

The first sliding table 11 is moved toward the band plate S by the applicator roll pressing device 2214, which includes a center motor and a screw mechanism, which is arranged on the entrance/exit table mold 51L! be done. The applicator roll 18 is connected to the first sliding table 11 via a bearing 16.
is rotatably supported, and a paint pan 13 is attached. Further, a second sliding table 21 is placed on the first sliding table 11 via a guide 22 provided thereon, and a transfer roll 28 is placed on the second sliding table 21 via a bearing 26. is rotatably supported. Similarly, a guide 3 provided on the 21st fl moving base 21
A third sliding table 31 is placed via the third sliding table 31F, and a pickup roll 38 is rotatably supported on the third sliding table 31F via a bearing 36. And the second W4h stand 21
The gap between the rolls of the third sliding table 3I is adjusted by roll gap adjusting devices 24 and 34 including an electric motor and a screw mechanism provided on the first sliding table 11 and the second sliding table 21, respectively. The pickup roll 38 picks up paint from the paint pan 19, and transfers the paint to the transformer 770-
It is supplied to the applicator roll 18 via the roll 28. The applicator roll 18 makes contact with the paint to adhere to the two plates S.

Applicator roll! Rotate and drive coating rolls such as 8! Sl41 is an AC motor 4 with three reducers.
It consists of 2. Each electric fi42 is connected to the first
Sliding table 11. 2nd sliding table 21 and 0'S3 sliding table 31
) and the applicator roll 18. via Jtlf-. It is connected to a transfer roll 28 and a pickup roll 38, respectively.

- The 11-person trolley 51 includes an AC motor 52 with a speed reducer, and power is transmitted from the motor 52 to wheels 53 via a transmission mechanism (not shown). Washing position of entrance and exit
A stopper 55 is provided at each of the W-th and W12, and the entry/exit h +l (51) is positioned at a stop by these stoppers 55.

The cleaning device 71 includes a cleaning liquid spray nozzle 72. A cleaning liquid tank 74, a pump 75, . It is equipped with an M valve 7G, a waste liquid recovery tank (not shown), and the like.

Here, the operation of the apparatus of this embodiment will be explained with reference to the time chart shown in FIG.

■ The strip S is being coated by the coating unit IA of the first coating apparatus Ml, and the coating unit IA of the second coating apparatus Ml) 2A is at the standby position P2. Painting units 1B and 2B are cleaning rolls, pans, piping, and gutter τ.

(When applying the coating, move back the coating unit IA that has been painting until now to the standby position P1, and pull the applicator roll 18 away from the strip S. Painting unit 2A
The loading/unloading trolley 51 performs a reverse operation at a timing when no unpainted area occurs on the ζIP plate S, presses the applicator roll 18 against the strip plate S, and paints it with the coating unit 2A.
Run the car and clean the retreated painting unit l^?
Move to the tw and start washing.

■ When starting the next painting, move the painting unit (2A) that has been painting so far back to the standby position atP2.

Further move to the n1st place Pi W 2+. At the same time, the painting unit (IB) in the standby position P1 is advanced to the painting position 2IC1 and painting starts.

Detective) Painting 22) IB is being painted, and painting 22)
IA and painting unit 2A are each at cleaning level 2? It is being washed at W eyes and W months. Further, the painting unit 2B is at a standby position P2.

[Co., Ltd.] Furthermore, at the time of the next painting change, the painting unit (1B) that has been painting so far is retreated to the standby position PI, and further moved to the cleaning position W12. The painting unit) 2B in the standby position 1P2 is advanced to the painting position nC2 to start painting, and the pIi mounting unit) 2B is moved to the standby position PI.

(6) Furthermore, when applying the next painting, move the paint unit (2B) that has been painting until now back to the standby position P/,
It further moves to the cleaning position W22. Move the painting unit (22) IA located at the standby position P1 to the painting position CI and start painting.

■ Repeat the above operation.

(Effects of the Invention) According to this IJ1, two painting positions are provided and four painting units are provided in order to eliminate unpainted areas that occur during the moving time of the painting equipment. Therefore, even if the coating schedule is such that the minimum coil coating time is 5 minutes as in the case of the above embodiment, there will be no unpainted areas during coating, and there is no need to stop the coating line. As a result, there is a great effect on improving the yield of coated strips and the coating work ability.

[Brief explanation of drawings]

Figure 1 shows how the continuous coating equipment of this invention is used for painting, washing, etc. Fig. 2 is a front view of the entire painting device;
3 and 4 are a front view and a side view of the coating unit, 5181 is a titer 1 showing the operation of the continuous coating equipment, and FIG. 6 is a front view of a conventional coating apparatus. I, II...Painting equipment, IA, IB, 2A, 2B.
... Painting unit, 4... Presser roll, 11, 21.
31... Sliding table, 14... Applicator roll pressing device, 18... Applicator roll, 19...
Paint pan, 24.34...roll gap adjustment device,
28...Transfer roll, 38...Pickup roll, 41...Roll rotation drive device, 51...
Entrance/exit trolley, S...band plate.

Claims (1)

[Claims] a coating unit having a coating roll, a roll rotation drive device, and a paint pan; a coating unit moving device;
In the coating equipment, which is equipped with a cleaning device, coats a traveling strip, and moves the coating unit from a coating position to a surface cleaning device to clean the coating roll, Two sets of painting equipment are arranged, and each painting equipment is equipped with two painting units, a painting unit moving device, and two cleaning devices, and the cleaning devices are placed on both sides of the strip path away from the painting position. . A continuous coating equipment for metal strips, wherein the coating unit moving device moves the coating unit along an entrance/exit path from a coating position to a cleaning position.