JPS5820267A - Coater - Google Patents

Abstract

PURPOSE:To make a small-sized coater having good work efficiency, by unlinearly locating a plurality of guide rolls, each axis of which is parallel together, between an uncoiling roll and a coiling roll, and arranging a coating means and a drying means to a web passage. CONSTITUTION:A web 1 to be coated is uncoiled from an uncoiling roll 2 located at the central position and coiled round a coiling roll 24 through guide rolls 3-10. This spirally running web 1 passes through a knife edge-type coater head 15 attached to a support stand 14, and paint located in a space defined by guide plates 16 and a knife edge 17 is applied to the web 1. The paint-applied web surface 18 is introduced into a drying duct 20 and dried, without coming in contact with other bodies.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a coating device, and more particularly to a small-sized, easy-to-operate coating device suitable for spraying paint onto a web or the like.

Conventionally, various coating devices have been used to apply paint to continuous objects such as webs. The basic structure of this coating device is such that the web is supported by guide rolls from an unwinding roll to a take-up roll, and a coating head and a drying section are provided in between. Since such coating devices are usually arranged in a straight line, a considerable amount of floor space or space is required from the unwinding roll to the take-up roll. Therefore, the entire operating status of the device cannot be monitored from one place. Furthermore, if the purpose is to manufacture a wide variety of products in small quantities, a great deal of time and effort will be spent on relining the web. Furthermore, when manufacturing different types of products to be coated using one coating device, the coating head portion may have to be changed, and some of the same layers cannot be used continuously.

The present invention has been made to solve the same problems as mentioned above regarding coating devices, and its purpose is to provide a coating device that is small in size, has good workability, and is therefore highly economical.

That is, the coating device of the present invention includes a roll fixing body, an unwinding reel fixed to the fixing body, and an unwinding reel whose axis is parallel to the unwinding roll and is attached to the above-mentioned constant body at intervals. A take-up roll, a plurality of guide reels fixed to the fixed body and having respective axes parallel to each other to form a path for the web running between the rolls, and a friend installed opposite to the path. The unwinding rod is also provided with a coating means and a drying means, and each of the four unwinding rods is arranged so that the web path formed by the unwinding web is non-linear when viewed from the front of the fixed body. - This is an opportunity to do so.

The apparatus of the present invention comprises an unwinding roll, a coating means, a winding roll,
It is preferable that a part or all of the guide row is cantilevered on the support surface, and it is more preferable that the entire guide row is cantilevered. Operations such as changing the tension of the web can be performed extremely easily.

The device of the invention may also include a plurality of different application means, which are arranged at different positions along the same travel path. Furthermore, by selecting a guide roll that supports the web running in a non-linear manner among these different coating means, the traveling route of the web can be changed, and only the IF means can be used for the desired one. You may. Further, in the apparatus of the present invention, the web spiral may be formed around an unwinding roll and the take-up reel may be disposed at the outer peripheral end of the web, or the web spiral may be formed around the take-up roll, The unwinding roll may be arranged at the outer peripheral end of the spiral.

The coating means used in the present invention may be of any type that can be used to apply paint to a material such as a web, such as a knife-edge coating head, a top-feed coating head, or a pot. Examples include a F-muffeed type reverse roll coating head or a gravure coater.

The drying means used in the present invention may be any means normally used for drying paint, such as a hot air dryer, and a preferred example is a duct formed to partially surround the web of the running route. This is done by blowing hot air. These means are arranged after the coating is applied to the web and before it is wound onto a take-up roll.

The web used in the present invention is usually called a web, such as cloth, paper, foil, sheet, film, etc., and the shoulder part is used.For example, plastic film, paper, cloth, steel plate, etc. Can be mentioned.

The paint used in the present invention can be selected from various types depending on the purpose, but examples include paint for magnetic recorders,
Examples include photoconductor ll5Ik materials, adhesive paints, and the like.

In the apparatus of the present invention, the web is made to be non-linear and the apparatus itself is a small case.

This device has a floor area of xAO ~ 172G and an occupied volume of 1/20 to 1/2 compared to a conventional linear-type spreading device.
It is miniaturized to 401i degrees. Therefore, the operator can control the operating status from one place, from unwinding the web to coating, drying, and winding.

Hereinafter, the present invention will be specifically explained with reference to the drawings.

FIG. 1 illustrates one of the most popular eII embodiments of the present invention. This device has a height of 2m and a width of L! ! Kamenodesho with a depth of 11% and a depth of Ill, which can be coated with a large amount of paint, such as plastic film, paper, cloth, steel plate, etc., magnetic tape, magnetic film, etc. , photoreceptors, adhesive tapes, etc. These web pages are io~6o.

It is possible to use something of the order of ■.

In FIG. 1, the coating web l is unwound from unwinding a-#2 located in the center, and is unrolled from guide reels 3 to 10.
The web L running in a spiral manner passes through a guide roll 3 and is wound around a knife edge seal m attached to a support 14. The web passes through a cloth head ls. In such an applicator head, the paint is applied to the web, which is placed in a space which is contested by the side plate 16 and the knife edge 17. The paint is applied to the web surface. 18 is for papermaking and drying without contacting other objects by passing through guide tools 5 to 8)2
Introduced into G, broken and dried. Drying data) 26 is
A web that runs in a spiral and Guy f @ - # meeting.

1) Contains a fairy, roll support rod -
Hot air is introduced through 1G to perform drying. The introduced hot air is discharged out of the system through the suction duct 21 at the top of the device. After drying, the film is wound up by a winding roll 24. One end of each pole used in this device is attached to a pole pairing (
W (not shown), or - are supported in a cantilevered state via a slushy metal k (not shown), so it is easy to attach or remove the web from the running path. It's cloudy. However, they can also be supported at the other end if desired, for example by attaching an arm 9 to the support plane 11. A driving device (not shown) for each of these four wheels is installed in the back space 12 of the roll supporter lft1m, and the web is moved to the unwinding roll 2.
The snow travels in a spiral shape in the direction of arrow 13, and is caught up in the spring snow 4. Furthermore, a control and operating device can be attached to the panel panel 22 at the bottom of the device.

FIG. 2 shows how the apparatus of FIG. 1 can be further fitted with a coating head of a different type. This device has a height of 1rm, a width of 2m, and a depth of 1114m. By selecting the running path of the web, it is possible to ensure that the web encounters only the desired coating head. It is. In FIG. 2, all of the rolls are supported in a cantilevered manner within a plane of the wall in the same manner as in FIG. Components that are the same as those in FIG. 1 are numbered the same.

In this coating device, the web 1 is unwound from an unwinding roll 2, runs in a spiral shape via guide rolls 3 to 7, and is coated with three types of sheets until it reaches the drying data 20C. Spraying can be done using either side of the head. First, when coating is performed using the cloth head Is, the web is ! After binding the id ■-# island, transfer the knife edge 1IIik cloth head IB to the guide row #S, .

In addition, the top feed 119 Pursuure coating head 34
When applying 11"4I using
Grasshopper up roll 30 sand from le goose, guide field-#
Drying duct 21&:M via 4, 8, 35, 7. The application head 34 is applied to the grub feed I19 by the batter up roll 30. The applicator ## consists of a metal cylinder roll 32, and a sand dam 33.
Rotate in the direction of 2'. By rotating each roller, the paint supplied into the f-F dam 33 is applied to the surface of the applicator roll 31 that contacts the patter up #30 by the metalinda roll 32 to form a sandbox #1 and a constant thickness. It is then supplied as a uniform coating onto the web.

Furthermore, the present coating apparatus is equipped with a cloth head 40 which is attached to the other part of the spiral web.
It is also possible to apply cloth.

The application head includes a grasshopper roll #35, an applicator roll 36, and a metacoder roll 37, each of which rotates in the direction of arrows 351°3' and 37'. The paint supplied into the color pan 38 is
After being pumped up to an applicator roll 36 and having its coating film thickness adjusted by a metal roller roll 37, it is transferred to a web running on a backup roll 35 as a uniform coating film. Talleyung, who has a metal ring 37, uses a doctor knife 39 and removes the adhering paint with a color pan 3.
It was decided to return it to 6. By using the spreading device shown in Fig. 2 and selecting the guide rolls that support the spirally running web, it is possible to use the desired spreading head and apply various types of paint. It is possible to adopt the most suitable coating method depending on the purpose. In addition, there is no need to supply paint to unused application heads, and if the gap between the web and the applicator is sufficiently wide, coating can only be performed using the desired application head. You can do some of these without any trouble.

Third! l! 1 illustrates another embodiment of the invention. This device has a height of 2 m, a width L of 5 m, and a depth of L2.
It is. The 311th device is a device in which a spiral is formed around a take-up roll, and a papermaking and unwinding roll is placed at the outer peripheral end of the spiral.The same parts as in the 1II are given the same numbers. be. In the web spreading device, the unwinding wheel 2 is located at the outer peripheral end of the spiral, and the web is placed on the guide 4.
It travels in a spiral shape via loops 3 to 7, and is wound up onto the winding 1kt1-#24 located at the center.

For coating on the web, use Knife Edge IIIk cloth head 1
The coating is applied in the same manner as the apparatus shown in FIG. 2 using a 5 or F tube feed reverse roll coating head 34 to obtain a uniform coating film. In this device, all four louvers are housed in a case 41. Drying of the electrical film is carried out by the hot air introduced through the inlet 46 encountering the space defined by the web 42, the guide 43, and the case wall 44, 45. After the hot air contacts one side of the web 42 and dries it, the sand is discharged through the discharge port 47. During coating and coating, close the front door of the equipment 4.
8 and 4JF1W1 are used in a modified state.

As mentioned above, the spreading device of the present invention allows the web to travel in a non-linear manner, and the coating device and the drying device are electrically distributed to a part of the web, making the device extremely compact. This saves floor space and space.
It can be said that it is highly economical. In addition, when the unwinding a-k, take-up roll, guide reel, coating head, etc. are supported cantilevered on the same plane, handling operations such as changing the tension of the web are extremely easy. has. Furthermore, with this device, the coated surface of the web does not come into contact with the guide roll before drying, and the coating process is carried out in a small spatial angle, making it easy to grasp and control the specific area.
It also has the advantage of being easy to manage.

[Brief explanation of the drawing]

1 to 3w specifically show embodiments of the present invention. l-web, 2-unwinding roll, 3~1G... guide roll, ls-knife edge IIIk cloth head, 20-drying section, z4-winding w-k, 34-... type feed FI
19 Perspective 4-ru application head, 40.-Chitomfee F
Il19 Perth roll application head.

Claims (1)

[Claims] The tw-roll fixed body, the unwinding roll fixed to the 11Ill running body, and the unwinding roll whose axes are parallel to each other with an interval of i5-
The winding roll is attached to the above-mentioned table fixing body, and a plurality of rolls are fixed to the above-mentioned fixing body and each axis is parallel to each other in order to form a linkage of the web that runs on the shoulder of the roll. a guide roll, and a spreading means and a drying means provided opposite to the passage, so that the web passage formed by the web when unwound from the unwinding roll is non-electronic when viewed from the front of the fixed body. A coating device in which each of the reels described above is arranged so that (2) The spreading device according to claim 1, wherein a part or all of the winding roll, the spreading means, the take-up roll, and the guide roll are supported in a cantilevered manner on a support surface.翫 The first range of time evaluation with a plurality of different application means.
Coating device described in section. 4. By the person who selects the guide tool for the running web in a multi-member coating device equipped with Iks handles.
, ``Claim 3 which covers only the desired application means
Coating device described in section. - A spiral is formed around the unwinding roll, and the winding is affected.
is at the outer peripheral end of the spiral according to claim 1.
ps place. A spiral is formed around the melon roll @a-jhp,
4. The coating device according to claim 3, wherein the unwinding roll is located at the outer peripheral end of the spiral.