JP3032670B2 - Replacement equipment for upper parts of roller curtain coater - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an apparatus for replacing upper parts such as a paint supply apparatus and a side tray in a coating apparatus of a belt-shaped roller curtain coater system.

[0002]

2. Description of the Related Art Conventionally, as a coating technique using a curtain flow, a slit method and an overflow method are known. For example, the slit method supplies paint to the head,
Discharge from the slit gap to form a curtain. In this method, a predetermined coating film thickness is obtained by adjusting the coating viscosity, the slit interval, and the like. The overflow method changes properties such as surface tension and viscosity of the paint while diluting the paint with a solvent. In this way, the paint adjusted to an appropriate paint viscosity overflows from the container to form a curtain. In this method, a predetermined coating film thickness is obtained by adjusting the coating viscosity and the like.

Further, in recent years, a curtain coater using a roller system (roller curtain coater) has been developed. This roller curtain coater uses a paint roll and a doctor roll
Consisting coater discharged from the paint supply apparatus installed in the roll top between the rubber or metal coated roll and a metal doctor roll, scraping with a blade in contact with the coating roll. The scraped paint flows down along the blade to form a paint curtain, and is applied to a steel plate or the like passing below the blade.

FIG. 5 is a schematic view of a conventional roller curtain coater. The paint discharged from the paint supply device 7 is stored between the paint roll 1a, the doctor roll 1b and the side trays 8 and 8 'on both sides, and is rotated by the rotation of the paint roll 1a from the gap between the paint roll 1a and the doctor roll 1b. Is discharged downward along the surface of the coating roll 1a. A blade 3 is arranged in the axial direction of the coating roll 1a.
The paint is scraped off from the surface of the coating roll 1a by the blade 3 to form a paint curtain 6 and flow down.

In this roller curtain coater, the rotation speed of the coating roll 1a, the pressing pressure between the coating roll 1a and the doctor roll 1b when the coating roll 1a is made of rubber, or the pressure of the coating roll 1a when the coating roll 1a is made of metal. By adjusting the gap between the doctor rolls 1b, a paint curtain 6 having a desired film thickness can be obtained.

The paint discharged from between the coating roll 1a and the doctor roll 1b is scraped off by a blade 3 installed below the coating roll 1a, and from above the strip-shaped body 4 (steel plate), which is the object to be moved. Painting is performed when the paint curtain 6 falls freely. On the other hand, the remaining paint is supplied to a paint receiving pan 2 provided at a lower portion and a paint discharge valve 62.
Is discharged through. On the other hand, since it is necessary to keep the width of the paint curtain 6, the side chains 5, 5 'are provided so as to extend along the inner bottom surface of the paint receiving pan 2 and the surface of a flow-down guide (not shown). It adjusts the flow width.

Further, when the paint replacement (paint replacement), only after that, each decomposed paint supply device 7 and the side tray 8 and 8 'which are arranged individually on the coating rolls, paint falling from these since the resulting or, or even fall into coating rolls of dirty cleaning solution as washed occurs,
After disassembling these, it was necessary to wash the equipment below from a full-scale roll.

[0008]

In recent years, various kinds of coated strips have been manufactured in accordance with the trend of multi-product small-volume production of products. To respond to such a wide variety of coating strips, it is necessary to perform the coating re during painting operation must also be able to correspond to the rapid painting sorting coating apparatus therefor.

[0009] However, in the conventional roller curtain coater, paint supply device 7 and the side tray 8 and 8 'are arranged individually on the upper portion of the coating rolls, only after a disassembled them individually, from these paint fall occurs
Or, or because the drop to be dirty washing liquid coating rolls as cleaned occurs, it is difficult to authentic washed under equipment from a roll, a continuous coating is very difficult.
Also, the attachment / detachment of the paint supply device 7 and the side trays 8, 8 'and their cleaning are all manually performed.
It took a lot of man-hours.

The present invention has been made to solve such a problem, and efficiently replaces the upper part comprising the paint supply device 7 and the side trays 8, 8 'in a short time. An object of the present invention is to provide an equipment for replacing upper parts of a roller curtain coater, which enables automation and also enables automatic cleaning of upper parts and enables quick coating change.

[0011]

DISCLOSURE OF THE INVENTION The present invention advantageously solves the problems of the prior art, and as a result of the inventors' ingenuity to achieve the above-mentioned object, as a result, in a short time. It is possible to efficiently replace the upper parts, and also to automate the parts replacement and parts cleaning, and to respond to the quick paint change. The gist of the invention is as follows: (1) Cotaro made of paint roll and doctor roll
Tool and a blade provided in close proximity to the coating roll.
Coater body and the paint supply placed on top of the coater roll.
Side trays installed on both sides of feeder and coater roll
Roller curtain composed of upper parts consisting of
Oite in the upper parts replacement equipment of the coater, coating, which is the upper parts
The feeder and the side tray are integrally connected,
The coater truck holding the coater body and upper parts is band-shaped
Runs and can be positioned in a direction that intersects the running direction of the body
Arranged above the coater trolley, the running direction of the coater trolley
Traveling in the direction intersecting with
A replaceable upper part replacement / transportation device is provided, and
A roller characterized in that an upper component chuck mechanism is provided in the component replacement / transport device, and an upper component transport trolley, an upper component placement table, or an upper component cleaning device is disposed within a moving range of the upper component replacement / transport device. Replacement equipment for upper parts of curtain coater. (2) The paint supply device and the side tray are linked to each other
Are connected via a connecting member consisting of
When parts are not held by the upper part chuck mechanism,
Function to press the id tray against the end of the coater roll
When parts are held by the upper part chuck mechanism,
The upper part replacement equipment of the roller curtain coater according to (1), wherein the tray has a function of being detached from the end of the coater roll. (3) The roller according to (1) or (2), wherein a centering mechanism in a moving direction, an intersecting direction, and a height direction of the coater main body is disposed in a chuck mechanism of the upper part exchanging / transporting apparatus. Replacement equipment for upper parts of curtain coater. It is in.

[0012]

The present invention will be described below in detail with reference to the drawings.
FIG. 1 is an overall image of a coating facility including an upper part replacement facility of the present invention. The coating equipment consists of front coating units A1 and A2 composed of a roller curtain coater, back coating units B1 and B2 composed of a roll coater, and a deflector roll 1
1, a pass line fixing roll 12, a lift roll 13, an upper component exchange / transport device 31, an upper component cleaning device 52, and an upper component transport cart 51 are arranged. The upper part replacement / transport device 31, the upper component cleaning device 52, and the upper component transport cart 51 are shared by the surface coating units A1 and A2.

FIG. 2 shows an upper part exchange / transport device and a surface coating.
It is a schematic diagram showing the relationship of a mounting unit . The surface coating unit is roughly divided into a coater body and upper parts.
It is. As shown in FIG.
a and a coater roll consisting of a doctor roll 1b,
A blade 3 provided in the vicinity of the mounting roll 1a;
3 and side chains 5, 5 ',
Kepan 2. On the other hand, the upper part is
Paint supply device 7 and side trays 8, 8 '
And a coater roll placed on top of the coater body.
Located at the top of. These coater body and upper parts
Are held on the coater trolley 21. Note that in FIG.
The details are omitted except for the coater trolley 21.

The coater main body moves from the line side along the coater truck rail 22 in the direction intersecting the running direction of the band 4 (not shown) on the coater truck 21, and moves away from the band 4. A coater truck fixing stopper (not shown) is disposed at the tip of the coater truck rail 22. After the coater truck 21 hits and stops, the coater truck clamping device (not shown) and the coater truck fixing stopper (FIG. (Not shown) and always stops at a fixed position (upper part replacement position).

Above the upper part exchange position, the upper part exchange / transport device 31 moves along the upper component exchange / transport device rail 32 installed in a direction crossing the coater truck rail 22. An upper component transporting trolley 51 (not shown), an upper component mounting table (not shown), or an upper component cleaning device 52 (not shown) is placed within the travel range of the upper component replacing / transporting device 31.

FIG. 3 is a schematic view showing a mechanism for attaching and detaching the upper part by the upper part exchange / transport device 31. Paint supply device 7 and the side tray 8 and 8 'are stoppers 14 and the side
They are connected by connecting members 9 and 9 ′ composed of a link mechanism having a tray pressing mechanism 15 . In addition, the side tray 8,
8 ', the paint supply device 7 is usually mounted on the coater body.
In this state, as shown in FIG.
(Paint roll 1a and doctor roll 1b) are pressed from both sides to maintain the amount of paint between these rolls 1a and 1b. On the other hand, the ends of the coupling members 9 and 9 ′ are connected to the upper part chuck 33 provided in the upper part exchange / transportation device 31.
a, 33a ', the side tray
8, 8 'are separated from the coater roll as shown in FIG.

The upper part exchanging / transporting device 31 includes a rail 3
And an exchange / transportation trolley 38 traveling along the
Suspended through a lifting mechanism 37 having a positioning function
And a lifting table 39. In Fig. 2
The transport vehicle 38 is schematically illustrated for convenience. Also the upper part
The elevator 39 of the product exchange / transportation device 31 holds the upper part
And a chuck mechanism for performing the operation. That is, the elevator 3
At the periphery of the upper part 9 there is an upper part chain which holds the coupling members 9, 9 '.
In addition to having chucks 33a, 33a ', chucks 33b, 33c for gripping chuck receiving members 35b, 35c fixed to the paint supply device 7 are held. Also upper parts
The chucks 33a, 33a 'are opened and closed by a cylinder system.
Opening and closing of the chucks 33b and 33c by the driving device 34a
Row drive 34b Siri Sunda method by 34c
U. These driving devices 34a, 34b, 34c are
The upper component chucks 33a, 33
a 'extends downward from the opposite edge of the elevator 39, and
Lower grip portions of the hooks 33b and 33c penetrate the lifting table 39
And projecting from the lower surface thereof. Actually
When replacing a large number of upper parts,
In order to complement the manufacturing accuracy of each upper part, the stoppage accuracy of the coater trolley, and the positioning accuracy of the upper part replacement / transfer device,
A centering mechanism is provided in the upper part exchange / transport device chuck portion as necessary.

[0018] Figure 4, Ri schematic diagram der representing the centering mechanism of the upper parts replacement and transfer apparatus chuck portion, for example
For example, a centering mechanism of the chuck 33b is shown .
Centering units 41, 42, 42,
43 and 44 are arranged. Centering unit 41
Is the upper side of the chuck, and the centering unit 42 is the
The centering unit 43 holds the lower part of the
The centering unit 44 is located on the front and rear sides of the chuck.
Adjust each side.

Now, the operation of replacing the upper part will be described. First, after the coater truck 21 is canceller <br/> moved is stopped until the component replacement positions, the upper along the upper part (paint supply apparatus 7) upper portion <br/> Replacing and transfer apparatus rails 32 directly above parts replacement and transfer apparatus 31 is stopped moving, the upper while using positioning function
The part- replacement / transportation device elevating mechanism 37 has an upper part
The fasteners 33a, 33a 'and the chucks 33b, 33c are connected to the coupling members 9, 9' of the upper part and the chuck receiving member 35.
The lifting platform 39 is lowered to a position where it can grip b, 35c, and the chucks 33a, 33a 'and 33b, 3
While using the centering mechanism 3c, the coupling members 9, 9 'of the upper part and the chuck receiving members 35b, 35c are grasped and raised. Then, after being lifted to a height that does not interfere with other equipment, it is moved along the upper component exchange / transport device rail 32 to a position just above the empty position of the upper component transport cart 51 or the upper component placing table (not shown) or the upper component cleaning device 52. Then, the upper part is placed at each empty position by performing the reverse operation.
Next, go up once, drive to just above the new upper part position,
It descends again, grasps the new upper part, follows the course reverse to that of the old roll, transports it to the coater unit, and mounts it on the coater unit. These series of operations may be performed manually or automatically. Further, automatic cleaning is also possible by using a cleaning device.

[0020]

According to the present invention, the upper parts can be efficiently replaced within a short time, and the upper parts can be automatically replaced and automatically cleaned. As a result, it is possible to quickly respond to a paint change (paint change), thereby achieving continuous coating.

[Brief description of the drawings]

FIG. 1 is an overall image of a continuous coating equipment including a roller curtain coater upper part replacement equipment of the present invention.

FIG. 2 is a schematic diagram showing the relationship between a roller curtain coater upper part replacement / transport device and an upper part according to the present invention.

FIG. 3 is a schematic view showing a mechanism for attaching and detaching an upper part by a roller curtain coater upper part exchanging / transporting apparatus of the present invention.

FIG. 4 is a schematic view showing a centering mechanism provided in a chuck mechanism of the upper part exchanging / transferring device of the roller curtain coater of the present invention.

FIG. 5 is a schematic view of a conventional roller curtain coater.

[Explanation of symbols]

An Surface coating unit (n = 1, 2,...) Bn Back surface coating unit (n = 1, 2,...) 1a Painting roll 1b Doctor roll 2 Paint pan 3 Blade 4 Band (object) 5,5 'side chain 6 paint curtain 7 paint supply device 8,8' side tray 9,9 'connecting member 11 deflector roll 12 pass line fixing roll 13 lift roll 14 stopper 15 side tray pressing mechanism 21 coater truck 22 coater truck rail 31 Upper part exchange / transport device 32 Upper component exchange / transport device rail 33a, 33a 'Upper component chuck 33b, 33c Chuck 34a, 34b, 34c Chuck drive unit 35a, 35a' Chuck receiving member 35b, 35c Chuck receiving member 36 Upper part Replacement / transportation device traveling direction 37 Upper part Product exchange / transportation device elevating mechanism 38 Exchange / transportation trolley 39 Lifting platforms 41, 42, 43, 44 Chuck unit centering unit 51 Upper part transporter 52 Upper part cleaning device 61 Paint supply valve 62 Paint discharge valve

──────────────────────────────────────────────────続 き Continuation of the front page (56) References JP-A 3-94974 (JP, U) JP-A 62-160680 (JP, U) JP-B 61-44984 (JP, B2) (58) Field (Int.Cl. ⁷ , DB name) B05C 5/00 103 B05D 1/30 B05C 1/02-1/12 B05C 11/00

Claims (3)

(57) [Claims] 1. A paint roll and a doctor roll
Coater roll and blade provided close to the coating roll
And a coater body having
Paint supply device and sieves installed on both sides of the coater roll
Roller consisting of the upper part consisting of the tray
Oite in the upper parts replacement equipment of a curtain coater, the upper parts
Paint supply device and side tray are integrally connected
And a coater table for holding the coater body and upper parts
Drive and position the car in a direction that intersects the running direction of the
The coater trolley above the coater trolley.
Travel in the direction that intersects the traveling direction, and the traveling direction and height
Equipped with an upper part exchange / transportation device that can be positioned in any direction
And the upper part exchange / transport device has an upper part chuck mechanism.
And an upper component carrier, an upper component mounting table, or an upper component cleaning device disposed within a moving range of the upper component exchanging / transporting device. 2. A paint supply apparatus and the side tray is connected via a connecting member made of the link mechanism to each other, said coupling portion
Material is not retained by upper part chuck mechanism in upper part
Sometimes a machine that presses the side tray against the end of the coater roll
When the upper part is held by the upper part chuck mechanism
The side tray is in a state of being separated from the end of the coater roll.
The upper part replacement equipment for a roller curtain coater according to claim 1, wherein the upper part replacement equipment has a function of: 3. The roller according to claim 1, wherein a centering mechanism in a moving direction, a crossing direction, and a height direction of the coater main body is disposed in a chuck mechanism of the upper part exchanging / transporting apparatus. Replacement equipment for upper parts of curtain coater.