JPH0716517A - Roll replacement device and roll replacement method in coating equipment - Google Patents

Abstract

PURPOSE:To save energy consumption by allowing a coater truck on which a coating unit supporting a coater roll by a chuck in a freely detachable manner is mounted to traverse to a roll replacement position, and further, allowing a roll replacement device to replace the roll, in roll coater-type coating equipment. CONSTITUTION:A coating unit is equipped with a coater roll including a coating roll 11 held by a roll chuck 14, and the coating roll 11 is connected to a roll rotation drive device in such a manner that the roll 11 can be disconnected by activation of a clutch detachment device. The coating unit is mounted on a coater truck 21 which can traverse along a rail 22 in a direction crossing the running direction of a belt-like object to be coated. In addition, a freely movable roll replacement device 31 which runs on a rail 32 is provided above the coater truck 21 at a roll replacement position. Further, a chuck structure 33 is allowed to approach the coating roll 11, using an elevation mechanism 34 mounted on the roll replacement device 31. Consequenty, the roll chuck 14 is held and recovered by the chuck structure 33 and a new coating roll for replacement is attached to the coating unit.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a belt-type coating equipment, and more particularly to a roll exchanging method and exchanging device for a roll coater type coating equipment.

[0002]

2. Description of the Related Art In recent years, various kinds of coated strips have been manufactured in accordance with the tendency of producing a large variety of products in small quantities. At present, most of the strips are painted by the roll coater method, and the strips that are running are painted continuously. In order to handle various types of painting, it is necessary to change painting during painting work, and the painting equipment must be able to change painting quickly.

[0003] Conventionally, as a plan to cope with rapid coating change of a coating apparatus, it has been widely practiced to arrange a plurality of coating units on the front surface and the back surface, respectively, and use them sequentially as shown in FIG. 7, for example.

However, the coating roll of the roll coater type coating device is often scratched by the end of the belt-shaped body which is the body to be coated, particularly the metal body.
The roll scratches may cause streaks in the coating film, or the coating film may not be uniform. Also, when the coating roll is a rubber roll, the roll swells depending on the paint, and if the swelling exceeds a certain limit, it will not be usable, or depending on the type of paint to be replaced, the used paint contained in the roll will It mixes with the paint to be applied to the surface of the product and may cause paint failure. In addition, scratches may occur due to the deposits on the strip. Therefore, it is necessary to change the coating rolls regularly or irregularly, and especially in the case of high-mix low-volume production, the rolls must be changed frequently. On the other hand, when the coating is changed, the coating unit such as the coating roll must be washed, and in addition to the washing, it is necessary to finish the roll replacement in a short time. However, the conventional roll coater type coating device does not have a special means for roll replacement including the coating roll.

[0005]

In the above construction, when the coating rolls are changed regularly or irregularly, if the work efficiency of the roll change is poor and the coating roll becomes defective, the coating line is lengthened. In some cases, it had to be stopped for a while, which hindered the coating of the strips and required a lot of man-hours for roll replacement.
In particular, when simultaneously changing rolls in the front and back coating units, it takes a lot of time because of limited personnel, and the coating line is often stopped for a long time.

The present invention has been made in order to solve such a problem, and makes it possible to replace the coating rolls efficiently in a short time and also to automate the roll replacement. An object of the present invention is to provide a roll exchanging device and a roll exchanging method in a body painting facility.

[0007]

The present invention advantageously solves the problems of the prior art, and as a result of the inventors' ingenuity in order to achieve the above-mentioned object, In addition to enabling efficient exchange of the coating rolls, automation of roll exchange is also possible, and the gist of the invention is as follows.

(1) In a roll exchanging device for one or more coating units having a coater roll, the coater roll has a chock structure, and a coating device having a forward / backward moving mechanism having a clutching function with a driving device for the rolls. A unit, a self-propelled coater truck having a positioning function of traveling in a direction intersecting with a traveling belt, and a self-propelled vehicle having a traveling function of traveling in a direction intersecting with a moving direction of the coater truck and a height direction. A roll transfer device and a roll exchange device in a coating facility, wherein a roll transfer vehicle or a roll mounting table is provided within a moving range of the roll transfer device.

(2) The roll exchanging device according to (1), characterized in that the roll exchanging device is provided with an aligning mechanism for the moving direction of the coater carriage, the intersecting direction, and the height direction.

(3) In a roll replacement method for one or more coating units having coater rolls, the coater rolls have a chock structure, and the drive unit of the rolls is a clutch joint and has a forward / backward moving mechanism having a positioning function. A unit, a self-propelled coater truck having a positioning function of traveling in a direction intersecting with a traveling belt, and a self-propelled vehicle having a traveling function of traveling in a direction intersecting with a moving direction of the coater truck and a height direction. A roll transfer apparatus and a roll replacement method in a coating facility, wherein a roll transfer vehicle or a roll mounting table is provided within a moving range of the roll transfer apparatus.

[0011]

The operation will be described in detail below with reference to the drawings of the present invention.
FIG. 1 is an overall image of a coating apparatus including the roll changing apparatus of the present invention. The coating equipment has a two-layer structure. The surface coating unit 2a, the backup roll 3a, the roll exchanging device 31a, and the roll carrier 51a are arranged in the lower layer, and the surface coating unit 2b and the backup roll 3b are arranged in the upper layer. , Lift roll 4, back coating unit 2
c, 2d, roll changing device 31b, and roll carrier 5
1b is arranged. The roll exchanging device 31b and the spare roll placing cart 51b are shared by the three upper coating units.

FIG. 2 is a schematic view showing a method of stopping the roll exchange position of the three roll coater. The coater roll is a coating roll 11, a pickup roll 12, and a doctor roll 1.
It consists of three. At the time of painting, the painting roll 11,
The predetermined coating material is transferred to the belt-shaped body 1 which is the object to be coated by controlling the number of rotations of the pickup roll 12 and the doctor roll 13 and the nip pressure or the gap between them, but each roll is generally a forward / backward moving mechanism. As a stepping motor is often used as. Well, finish painting,
When exchanging rolls, this stepping motor is driven to move each roll, and the reverse limit limits 61, 6 are moved.
At 2, 63, the roll is always stopped at a fixed position (roll exchange position).

FIG. 3 is a schematic view showing the coupling of the coating roll with the drive unit. The coating roll 11 includes a roll rotation drive device 41, a universal joint 42, and a clutch 4.
3, the clutch 43 is connected by the clutch attachment / detachment device 44 during coating, and the roll rotation drive device 41 is connected.
Although the driving force of the clutch 43 is transmitted to the coating roll 11, the clutch attaching / detaching device 44 is used when the roll is replaced.
And the coating roll 11 and the roll rotation drive device 41 are separated. The other rolls may have the same structure if necessary.

FIG. 4 is a schematic view showing the relationship between the roll changing device and the coating unit. The coating unit moves along the coater truck rail 22 from the line side in a direction intersecting the traveling direction of the strip body 1 (not shown) on the coater truck 21 and moves away from the strip body 1. A coater carriage fixing stopper 23 is arranged at the tip of the coater carriage rail 22,
After the coater carriage 21 hits against this, the coater carriage clamp device 24 is used to stop the coater carriage fixing stopper 23.
And is always stopped at a fixed position (roll exchange position). At this time, the coating roll roll chock holding device 15 is released.

A roll exchanging device 31 is moved above the roll exchanging position along a roll exchanging device rail 23 installed in a direction intersecting the coater carriage rail 22. A roll carrier or a roll stand (not shown) is placed within the traveling range of the roll exchanging device 31.

FIG. 5 is a schematic view showing the attachment / detachment of the coating roll of the roll exchanging device. The roll exchanging device has a roll exchanging device chuck structure 33 for gripping the coating roll roll chock 14 at both ends of a roll exchanging device elevating mechanism 34 having a positioning function. Since a large number of exchange rolls are targeted, the roll exchange device centering mechanism 35 is provided to complement the production precision of each roll, the stop precision of each roll, the coater carriage stop precision, and the roll exchange device positioning precision.

FIG. 6 is a schematic view showing the centering mechanism of the roll exchanging device. The centering units 38, 36 and 3 are provided on the front and rear, the upper and lower sides, and the right and left sides of the exchange roll respectively.
7,39 are arranged.

Now, the roll exchange of the coating roll 11 will be described. First, after the coater cart is moved to the roll exchange position and the coating roll roll chock holding device 15 is released, the roll exchange device rail 3 is directly above the coating roll 11.
2, the roll exchanging device 31 moves along the position 2, and the roll exchanging device elevating mechanism 34 descends to a position where the coating roll roll chuck 14 can be gripped while using the positioning function, while using the centering mechanism 35 of the roll exchanging device chuck structure 33. Grab the coating roll roll chuck 14 and move up. After that, after lifting to a height that does not interfere with other equipment, it moves along the roll device rail 32 to just above an empty roll position of a roll carrier or a roll stand (not shown), and reverses the above operation to remove the coating roll 11. Place it on an empty roll position on the roll carrier or roll stand. Next, it once rises, travels just above the position of the new coating roll, descends again, grabs the new coating roll, follows the course opposite to that of the old roll, conveys it to the coater unit, and incorporates it in the coater unit.

These series of operations may be performed manually or automatically. Further, the roll is not limited to the coating roll, and other rolls are possible. It should be noted that any coater that uses a roll can be used regardless of its type.

[0020]

As described above, the coating rolls can be efficiently exchanged within a short time, and the roll exchange can be automated. In particular, when the rolls of the front and back coating units were simultaneously changed, the human restrictions were completely eliminated, and great results could be obtained.

[Brief description of drawings]

FIG. 1 is an overall image of a continuous coating facility including a roll changing device of the present invention.

FIG. 2 is a schematic view showing a method of stopping a roll exchange position of a three roll coater of the present invention.

FIG. 3 is a schematic view showing the coupling of the coating roll of the present invention with a driving device.

FIG. 4 is a schematic diagram showing the relationship between the roll changing device of the present invention and a coating unit.

FIG. 5 is a schematic view showing a roll exchanging device of the present invention and attachment / detachment of a coating roll.

FIG. 6 is a schematic view showing a centering mechanism of the roll exchanging device of the present invention.

FIG. 7 is an overall image of a conventional coating facility.

[Explanation of symbols]

1 band 2a surface coating unit a 2b surface coating unit b 2c back surface coating unit a 2d back surface coating unit b 3a backup roll a 3b backup roll b 4 lift roll 11 coating roll 12 pickup roll 13 doctor roll 14 coating roll roll chock 15 coating roll roll chock Holding device 21 Coater trolley 22 Coater trolley rail 23 Coater trolley fixed stopper 24 Coater trolley clamp device 31 Roll changing device 31a Roll changing device a 31b Roll changing device b 32 Roll changing device rail 33 Roll changing device Chuck structure 34 Roll changing device Lifting mechanism 35 Roll Exchanger Centering Mechanism 36 Roll Exchanger Upper Centering Unit 37 Roll Exchanger Lower Centering Unit 38 Low Exchange device Side centering unit 39 Roll exchange device Front and rear face centering unit 41 Roll rotation drive device 42 Universal joint 43 Clutch 44 Clutch attachment / detachment device 51a Roll transfer carriage a 51b Roll transfer carriage b 61 Coating roll retraction limit limit 62 Pickup roll retraction limit limit 63 Doctor roll backward limit

─────────────────────────────────────────────────── ───

[Procedure amendment]

[Submission date] July 22, 1993

[Procedure Amendment 1]

[Document name to be amended] Statement

[Name of item to be corrected] 0015

[Correction method] Change

[Correction content]

The roll exchanging device 31 moves along the roll exchanging device rail 32 installed in a direction intersecting the coater carriage rail 22 above the roll exchanging position. A roll carrier or a roll stand (not shown) is placed within the traveling range of the roll exchanging device 31.

 ─────────────────────────────────────────────────── ─── Continued Front Page (72) Inventor Hajime Ishiguro 2-1 Tsurumachi, Hirohata-ku, Himeji City, Hyogo Prefecture Taihei Kogyo Co., Ltd. Hirohata Branch

Claims (3)

[Claims] 1. A roll exchanging device for one or more coating units having coater rolls, wherein the coater rolls have a chock structure, and a coating unit having a forward / backward movement mechanism having a clutch coupling with a driving device for the rolls. , A self-propelled coater cart having a positioning function of traveling in a direction intersecting with a traveling strip, and a self-propelled coater having a positioning function in a traveling direction and a height direction of traveling in a direction intersecting a moving direction of the coater truck. The roll transfer device and the roll exchange method in the coating facility, wherein the roll transfer vehicle or the roll mount is disposed within the moving range of the roll transfer device. 2. A moving direction of the coater carriage, a crossing direction,
The roll exchanging device according to claim 1, further comprising a roll conveying device having a height-direction aligning mechanism. 3. A roll exchanging device for one or more coating units having coater rolls, wherein the coater rolls have a chock structure, and a coating unit having a forward / reverse mechanism having a clutching function with a drive device of the rolls and having a positioning function. , A self-propelled coater cart having a positioning function of traveling in a direction intersecting with a traveling strip, and a self-propelled coater having a positioning function in a traveling direction and a height direction of traveling in a direction intersecting a moving direction of the coater truck. The roll transfer device and the roll exchange method in the coating facility, wherein the roll transfer vehicle or the roll mount is disposed within the moving range of the roll transfer device.