JPS62250963A - Equipment for continuously painting metal strip plate - Google Patents

Abstract

PURPOSE:To enhance the yield and efficiency in multikind and small-quantity production, by arranging two sets of painting apparatuses, each of which is equipped with a painting unit moving apparatus and a washing apparatus, along a strip plate running path so as to leave an interval therebetween and making it possible to transfer three painting units to each other between the two sets. CONSTITUTION:In painting units A, B, C, now, when painting is performed by the painting unit A and the painting unit C is washed in a first painting apparatus I, the painting unit B moves to a stand-by position P2 in a second painting apparatus II. In replacing painting, the coating roll of the painting unit A is separated from a strip plate S and the roll of the painting unit B is pressed to the strip plate S. The painting unit A retracted to a stand-by position P1 moves to the washing position W2 of the second painting apparatus II through rising and falling positions E1, E2 and the painting unit C moves to the stand-by position P1 of the first painting apparatus I.

Description

[Detailed description of the invention]

(Industrial Application Field) This invention relates to continuous coating equipment for gold and i strips using a roll coater method. (Conventional technology) In recent years, there has been a decline in the variety of products! Many types of coatings due to the trend of λ production 41? A board is being manufactured. Most of the strips are painted using the a-ru coater method, which continuously coats the strips while they are running. In order to handle many types of coatings, it is necessary to apply the coating during the painting process, and the coating equipment must be able to perform coating tasks quickly. Since new paint must be supplied after removal, it is difficult to repaint in a short period of time. As a solution to this problem, there is a roll coater type coating apparatus disclosed in Japanese Patent Publication No. 58552/1993, for example. As shown in Figure 6, which is a front view of this equipment, it is equipped with two painting equipment 111.92, each with a stand! It is mounted on 1t94 and runs left and right on rails 95. A cleaning device 37 is arranged at either side of the painting position. When performing painting or repainting by pressing the applicator roll 99 against the metal strip S, a gap is provided between the applicator rolls 39 that are in contact with the strip S, and the cart 84 is driven. The coating device 91 that is currently painting is run on the rail 35 and pulled out from the coating device position out of the line. Instead, the cleaning equipment 97 completes cleaning and the waiting painting equipment 2192 is pulled into the painting equipment position and paints the strip S. While the painting equipment 92 is painting, the painting equipment waiting outside the line ff191 performs cleaning in a cleaning device 97. (Problem to be solved by IJJ) In the above-mentioned conventional roll coater type painting device, after creating a gap between the applicator roll 93 and the metal strip S, the next step is performed after a period of time corresponding to the moving time of the painting device. Painting will begin. During this switching time, the metal strip may be stopped or continuously run. When stopping, the normal line configuration is to install a pre-treatment device and a baking oven before and after the coating device, so it is necessary to install a joint in this area. The quality of the board may be impaired (if it is stored away, or if it is run continuously,
Unpainted portions occur on the strips, and these portions do not serve as kimono products. Therefore, in any case, low yield and power cannot be avoided. Furthermore, for today's high-mix, low-volume production, the shortest loft is less than the time it takes to clean the rolls in the cleaning equipment.
There may also be cases where the painting is completed by 111. This IJJ was developed to solve the above-mentioned problems, and it is a continuous coating equipment for metal strips that can improve yield and tF rate and can respond to high-mix, low-volume production. Obtaining is LJ-like. (-r stage for solving the 15f+JfJ point) The coating equipment of this invention is equipped with two sets of coating devices.
The sets of painting devices are spaced apart in the upper direction when the strip is running vertically, and spaced apart in one direction when the strip is running horizontally. . Each painting device is equipped with a painting unit/1, a moving device, and a cleaning device, and three sets of painting devices can be moved freely along the entry/exit path between the painting position and the cleaning position and the connecting path that connects the two sets of painting devices. A painting unit is installed. The coating unit has a coating roll and a paint pan. The device that rotates the coating roll is
If the rotary drive device for the coating roll is provided separately from the coating unit, which may be included in the coating unit or placed at the coating position separately from the coating unit, the output shaft of the coating roll and the rotary drive device The hooks are removably connected via, for example, a pawl clutch, a slide key clutch, or a prismatic spline bundle. The rotational drive source of the coating roll is AC or fi
IQ 'itt motivation is used. If the coating roll rotation drive device is included in the coating unit, it must be an AC motor or hydraulic motor that does not generate sparks from an explosion-proof point of view.9! Delicious. The cleaning device is located at a side of the strip path away from the painting location. The washing 7'TI device is equipped with a washing liquid spray nozzle, a washing liquid tank for supplying washing liquid to the nozzle, a pump, a waste liquid collection tank, etc., as in the conventional device. The painting unit moving device consists of a zero-height truck, an electric motor, a hydraulic device, a crane, and the like. 'The central motor or hydraulic device drives the table 1 on which the painting unit is placed.The crane lifts the painting unit and moves it.The painting unit moving device moves along the entry and exit route from the painting position to the washing position. In addition, the coating equipment is equipped with a coating unit transfer device that transfers the coating unit from one coating device to the other coating device along the 1” distribution route. The unit transfer device includes, for example, an electric hoist, a trolley, etc. that lifts up the coating unit.The coating unit transfer device transfers the coating unit from one coating device to another powered coating device along the communication path. (Function) Assume that the painting units are A, B, and C. Now, suppose that painting is being performed by painting unit A in the first painting equipment a, and painting unit C is being cleaned, then the painting units in the second painting equipment are B is waiting at the coating position.When repainting, the coating roll of coating unit 7A is pulled away from the strip, and the coating roll of coating unit B is pressed against the strip. The coating roll is pulled! The separated coating 22)A is immediately moved to the cleaning position of the 21'l loading device through the entrance/exit passage and the communication passage, and is cleaned there. Then, after washing painted unit 2 and C, the entrance/exit road and J! In the zero-order coating material, which is moved to the coating position of the second coating device through the l connection path and is waiting, the coating unit B is moved as the coating roll is separated from the strip. The coating roll of coating unit C is pressed against the strip. The cleaning of the painting unit A is carried out while the painting unit) B and the painting unit) C are painting. Thereafter, work such as painting, repainting, cleaning, etc. is carried out continuously in the same manner. While the two painting units are taking turns performing painting work, the other painting unit can be cleaned, so the cleaning work can be completed in [- minutes] before the next painting. Furthermore, since the next painting unit is waiting at the painting position when painting materials, the painting can be immediately repainted without stopping the painting equipment and without causing unpainted areas. (Example) Figure 1 shows the continuous coating equipment of this invention for painting, washing, lifting and lowering (
FIG. As shown in the drawing, the strip S is guided by backup rolls 4 arranged above and below and runs vertically. A first painting position CI and a second painting position C2 are provided above and below the running path of the strip S, respectively, and each painting position ii! IC+, Cz
In this case, move away from the strip S and move to the standby position PI.
P2 is adjacent. ! /J replacement standby position 21P+,P,+
Washing positions 2t W + and W2 are provided at intervals on one side of the washing position. Furthermore, switching standby positions PI, P7 and cleaning position Wl. W? Elevating and lowering positions E+ and Ey are provided between the two, respectively. The first painting position C1 and the second painting position C2 are the painting positions of the first painting equipment and the second painting equipment II, respectively. Figure 2 is a cross-sectional view of the entire first painting equipment. Rail 5 of the entrance/exit path leading from the painting position C1 to the cleaning position WI
4 is extended. A portion of the rail 54 of the entrance/exit path is cut off at the elevation position El. IE entrance rail 541z
Painting unit) Equipped with A, B or C
51 is running. Further, an evacuation path extends from the elevating position E1 at right angles to the entrance and exit path, and a rail 64 is also laid here. The top surface of the rail 64 is the rail 5 of the entrance/exit path.
It is slightly lower than the top surface of 4, and the rail 84 of the evacuation route
．． A removable truck 61 runs on L. The second coating device II is similarly configured, and the first

It is located directly below the coating device I of [. However, the second coating device H includes the rail 64 of the evacuation path and the evacuation mold 61.
1 has not been sunk, and the rail 54 of the entrance/exit road is painted at position C.
2 to the cleaning position 21W2 without moving νJ. FIGS. 3 and 4 are front and side views of painting units A, B, and C. Painting units A, B, and C are the first
It is equipped with a sliding table 11 and extends in a direction perpendicular to the entrance/exit rail 54. The first sliding table 11 is mounted on the loading/unloading cart 51.11 via the guide 12 provided on the L entry/exiting table ilj 51. The applicator roll pressing device 14 includes an electric motor and a screw mechanism arranged on the loading/unloading cart 511-.
As a result, the first sliding table 11 is moved forward and backward toward the strip S. An applicator roll 18 is rotatably supported on the first sliding table 11 via a bearing 1G, and a paint pan 18
is installed. Further, a second sliding table 21 is connected to the first sliding table 11-hi via a guide 22 provided thereon.
A transfer roll 28 is rotatably supported on the second WJ moving table 211 via a bearing 26. Similarly, a third sliding table 31 is placed on the second sliding table 21-1 through an id 32, and a bearing 3θ is placed on the third sliding table 31. A pickup roll 38 is rotatably supported via the. The second sliding table 21 and the third sliding table 31 are respectively located on the 11th floor.
A roll gap adjustment device 24 including an electric motor and a screw mechanism provided on the ff moving table 11 and the second FM moving table 21.
34 adjusts the gap between the rolls. Pick-up roll 38 picks up paint from paint pan 19 and supplies it to applicator roll 18 via transfer roll 28. Applicator roll! Step 8 applies paint to the contacting strip S. A device 41 for rotationally driving a coating roll such as the applicator roll 18 is arranged adjacent to the coating station mc+ and separate from the coating units A, s, and c. That is, three AC electric motors 42 with reduction gears are arranged on the floor 6, and the electric motors 42 are connected to the applicator roll 18, the transfer roll 28, and the pickup roll through the universal joint J-43 and the prismatic spline joint 44, respectively. 38 is connected to the separation eye. 1: The entry/exit cart 51 is equipped with an AC electric motor a52 equipped with a speed reducer, and power is transmitted from the central motor 52 to the φ wheels 53 via a transmission mechanism (not shown). Painting of entry and exit roads 21
Stoppers 55 are recessed on the C1 side and the cleaning position W1 side, respectively, and the stop l-position of the loading/unloading table-1i51 is determined by these stoppers 55. As mentioned in 1i1, there is a rail B4 on the evacuation path for the elevating position aE+.
is sunk, and the evacuation cart 81 runs on the rail 64hi. ! ! Evacuation platform 1t e t H is provided with a long rail 67 that can be connected to the rail 54 of the entrance/exit path, and the access platform 51 can be moved to the washing position tW1 via this rail 67. The evacuation platform +1c61 is also equipped with an AC motor 62 with a reduction gear, and power is transmitted from the motor 62 to the wheels 63 via a conduction aW (not shown).Stoppers 65 are provided at each end of the evacuation path. , the stopping position of the evacuation trolley 61 is determined by these steps) -/pa 65.
An electric hoist 69 is placed in the , and the electric hoist 63 lifts the casing units A, B, and C from the second coating device ■ to the IT coating device ■, or from the first coating device I to the second PI coating device ■. At this time, the painting units A, B, and C are suspended from the evacuation trolley θl.
The evacuation trolley 61 is moved backward so as not to collide with the. The cleaning device 71 includes a cleaning liquid spray nozzle 72, a nozzle
A cleaning liquid tank 74 and a pump 75 that supply cleaning liquid to the tube 73. It includes a solenoid valve 76, a waste liquid collection tank (not shown), and the like. Further, a rotational drive device 77 that rotationally drives coating rolls such as the applicator roll 18 when cleaning these rolls is arranged at the oil washing position W1. This rotary drive device 77 is connected to the painting position B.
Like the rotary drive device 41 provided in C+, it is composed of an AC motor with a speed reducer 78, a universal joint 73, and a prismatic spline joint 80, and is detachable. The operation of the apparatus of this embodiment will be explained with reference to the time chart of FIG. (Coating unit in 0 1st coating device) A (i7 plate S
is currently being painted, and *unit C is a roll. Pans, pipes, gutters, etc. are being cleaned. In addition, the paint unit ÷-/
) B is in the standby position P2 of the second coating device. ■ When applying the coating, move the painting unit y)A that has been being painted until now to the standby position P+, release the applicator roll 18 from the strip S, and at the same time, remove the painting unit y)B from the second painting device. performs the opposite operation at the timing when no unpainted area occurs on the strip S, presses the applicator roll 18 against the strip S, and paints with the coating unit B.The coating unit A, which has moved back from the coating position CI, moves up and down. Second painting after 21E1 and E7! Move to washing position W2 at position A. At this time, the evacuation platform! The IE 61 is moved backward, and the painting unit A is suspended from the lifting position E1 to the lifting position E2 using the air hoist 63. (3) In the next repainting, the painting unit) B is moved backwards, and at the same time, the pII coating unit C starts painting at the painting position CI. Painted unit that retreated) B went to the 1st landing position E2 and El. Painting equipment cleaning position 21
Move to W+. At this time, the evacuation platform! 1': Reverse 81 and lift painting unit B from +Jl descending position 21E2 to elevating position vlE using the air hoist 69. (Φ Painting unit C is being painted, painting unit A
and painting unit C are being cleaned at cleaning positions 71 W 2 and Wl, respectively. (Φ Furthermore, in the next repainting, two or two coats of paint will be applied) C is moved back and the applicator roll 18 is separated from the strip S. At the same time, the applicator roll 18 is pressed against the strip S.
Painting position C where painting is performed by painting unit A! The painting unit C that has been retreated from there moves to the cleaning position W2 of the second painting device via the lifting and lowering positions E1 and E2. Φ Moreover, when the next painting is changed, the painting unit)
A is moved backwards and at the same time the painting unit is painted by B)
Painting begins. The painting unit A that has retreated from vk moves to the cleaning position W1 of the first coating device 9 via the elevating position 22E2 and El. ■ Painting unit) C is being painted, and painting unit A and painting unit C are being cleaned at cleaning levels '11 W + and W2, respectively. ■ After that, repeat the operation of Oxki. (Effects of the Invention) According to the present invention, in order to eliminate unpainted areas that occur during the moving time of the coating device, the coating device is provided at two locations and is provided with 3 painting units. Therefore, for example, 1-
Even if the coating schedule is such that the shortest coil coating time is 5 minutes as in the case of the above example, there will be no unpainted areas during repainting, and there will be no need to stop the coating equipment. It has a great effect on the yield of painted strips and the ability of painting work.

[Brief explanation of drawings]

Figure 1 shows the painting, cleaning, and
A perspective view showing the working position of the cylinder, etc., Fig. 2 is an f-side view of the entire coating equipment, and Figs. 3 and 4 are 1 of the coating unit.
FIG. 5 is a time chart showing the operation of the equipment mentioned above, and FIG. 6 is a front view of a conventional coating device. 1, II... Painting device, A, B, C... Painting unit, 4... Presser roll, II, 21.31... Sliding table, 14... Applicator roll pressing device, 1
8...Applicator roll, 19...'AH pan,
24.34... Roll gap adjustment device, 28...
・Transfer roll, 3rd...Pickup roll, 41...Roll rotation drive device, 51...Input/output trolley, 81...Evacuation trolley, 69...Electric hoist, 71
...Cleaning device, S...Strip plate. Special 1 application applicant agent

Claims (1)

[Claims] The coating unit includes a coating unit having a coating roll and a paint pan, a coating unit moving device, and a cleaning device disposed on one side of the strip passage away from the coating position, and is capable of coating the traveling strip and moving the coating unit. In a coating equipment in which a coating unit is moved from a coating position to a cleaning device by a device to clean the coating roll, two sets of coating devices are arranged at intervals along a strip running path,
Each painting device is equipped with the painting unit moving device and the cleaning device, and is movably moved along the entrance and exit path between the painting position and the cleaning position and the communication path that connects the two sets of painting devices. What is claimed is: 1. A continuous coating equipment for metal strips, characterized in that the units are arranged and a coating unit transfer device is provided for transferring the coating unit from one coating device to the other coating device along the communication path.