JP6986735B2 - Running base material processing equipment - Google Patents

Description

The present invention relates to a traveling base material processing apparatus, and particularly relates to a traveling base material processing apparatus suitable for processing a substrate traveling through a processing chamber.

Examples of the device for processing the traveling base material include a device for thinly coating various coating materials while continuously running a thin film base material. Then, a drying device for drying the coating material has been proposed (see Patent Document 1).

Japanese Patent No. 5834048

In Patent Document 1, the film runs through the drying chamber in a floating state. Depending on the purpose of coating, it may be necessary to dry the base material while supporting it with a guide roller.

However, since the drying chamber is set to a high temperature for drying the coating material, the guide roller is thermally deformed in the longitudinal direction and expands and contracts, so that the coating accuracy may deteriorate.

Furthermore, in order to allow the guide roller to expand and contract while rotating, the rotation of the drive source is transmitted via the old dam joint, but the guide roller vibrates, makes noise, and generates dust. .. As a result, dust adheres to the film, the rotation peripheral speed of the guide roller becomes unstable, and curls and scratches occur on the base material.

The present invention has been made in view of these points, and when the continuously traveling base material can be appropriately processed, the guide roller can be appropriately rotated, and the coating material is dried, the present invention can be used. It is an object of the present invention to provide a traveling base material processing apparatus capable of applying high quality coating.

In order to achieve the above-mentioned object, the traveling substrate processing apparatus of the present invention is a traveling substrate processing apparatus for performing heat processing while horizontally transporting a continuous substrate in a closed processing chamber. A plurality of rotatably provided guide rollers for guiding the transfer of the base material in the processing chamber, and a non-contact joint means for absorbing and transmitting the thermal expansion and contraction of each guide roller between each guide roller and the driving means outside the processing chamber. The upper heat source means and the lower heat source means are provided on the upper side and the lower side of the guide roller, respectively, and hot air is supplied from both heat source means so that the processing chamber can be held in a pressurized state from the outside. It is characterized by being.

By adopting such a configuration, it is possible to maintain a quiet state and rotate the guide roller properly without vibrating the guide roller via the non-contact joint means, and absorb the expansion and contraction due to the heat of the guide roller. It can be rotated appropriately, and a continuously traveling base material can be appropriately heat-processed to provide a high-quality workpiece. Further, since the upper heat source means and the lower heat source means are provided on the upper side and the lower side of the guide roller, respectively, hot air can be supplied from both heat source means to keep the processing chamber in a pressurized state from the outside. It is possible to reliably prevent the intrusion of dust from the air.

Further, in the present invention, in the traveling base material processing apparatus, in the first embodiment, the base material is a thin film-shaped base material to be coated, and the processing chamber is formed on one side or both sides of the base material to be coated. a drying chamber for drying the coated been coated agent, the non-contact coupling means Ri magnet coupling der, wherein both the heat source means is characterized by supplying the hot air as drying air.

By adopting such a configuration, it is possible to maintain a quiet state and rotate properly without vibrating the guide roller via the magnet coupling, and it absorbs expansion and contraction due to the heat of the guide roller and is appropriate. The coating agent applied to one or both sides of the substrate to be coated, which can be rotated to the surface, is properly dried, and the substrate to be coated is properly dried without curling or scratching. It is possible to provide a base material to be coated which has been heat-processed and subjected to high-quality coating. Further, by supplying hot air as dry air from both sides of the substrate to be coated to be continuously traveled so that the substrate to be coated is supported in the air from both the upper and lower surfaces, the substrate to be coated is made to be continuously traveled. It is possible to provide a base material to be coated with a higher quality coating by appropriately heat-processing without causing curling or scratching.

According to the traveling base material processing apparatus according to the present invention, a continuously traveling base material can be appropriately processed, the guide roller can be appropriately rotated, and high quality is obtained when the coated material is dried. It has excellent effects such as being able to provide a traveling base material processing apparatus capable of applying various coatings.

Longitudinal side view showing one embodiment of the present invention Section 2-2 sectional view of FIG.

Hereinafter, the traveling base material processing apparatus of the present invention will be described with reference to the embodiments shown in FIGS. 1 and 2.

The present embodiment describes an example in which the present invention is applied to a case where a coating material such as ink or molten resin is applied to a thin film-like base material such as a resin film or a metal foil and dried by a drying furnace.

In FIGS. 1 and 2, the configuration including the drying furnace 1 is shown in a skeleton manner.

In the present embodiment, the drying oven 1 is provided with a horizontally long sealed drying chamber 2. The drying chamber 2 may be long in the vertical direction. The continuous base material 3 is carried in from the inlet 4 formed at one end of the drying chamber 2 by a known transport means (not shown), and from the outlet 5 formed at the other end. It is designed to be carried out and carried through. A plurality of guide rollers 6 are rotatably arranged at predetermined intervals in the transport direction of the base material 3 in the drying chamber 5. As shown in FIG. 2, each guide roller 6 is horizontally supported by bearings 7 at both ends of the rotary support shafts 6a, and is allowed to expand and contract slightly in the axial direction due to a temperature change in the drying chamber 2. It has been supported. A drive shaft 8 as a drive means is coaxially supported on an extension of one rotation support shaft 6a of the guide roller 6 by a bearing 9 on a side wall 2a portion of the drying chamber 2. A known magnet cup as a non-contact joint means that absorbs and transmits the axial thermal expansion and contraction of the guide roller 6 between one of the rotary support shafts 6a of the guide rollers 6 that face each other coaxially and the drive shaft 8. It is connected by a ring 10. The magnet coupling 10 of the present embodiment is arranged so that the magnetic disk 10a faces the opposite ends of one of the rotary support shafts 6a of the guide roller 6 and the drive shaft 8 via a predetermined gap G. ing. This gap G acts to absorb the thermal expansion and contraction of the guide roller 6 in the axial direction and transmit the rotational force. As the magnet coupling 10, instead of the opposed magnetic disk 10a method, a cylindrical magnetic material is loosely inserted inside the outer cylindrical magnetic material via a gap in the radial direction and the axial length direction. May be good. The drive shaft 8 exposed from the side surface 2a of the drying chamber 2 is formed so that a rotational force is applied from the drive source via a known means. In this case, it is preferable to set the plurality of guide rollers 6 to have a constant peripheral speed. In the drying chamber 2, known upper heat source means 11 and lower heat source means 12 for drying the coating material coated on the base material 3 are provided on the upper side and the lower side of the base material 3. The inside of the drying chamber 2 is pressurized from the outside by hot air supplied from the heat source means 11 and 12, and the state of being cut off from the outside is surely maintained.

Next, the operation of the present embodiment having the above-described configuration will be described.

During the operation of the drying furnace 1, the continuous base material 3 is run through the drying chamber 2 at a predetermined speed, and each drive shaft 8 is rotated at a constant speed by a drive source to pass through each magnet coupling 10. Each guide dora 6 is rotated at a constant speed, hot air is applied to the base material 3 traveling from the heat source means 11 and 12, and the coating material coated on the upper and lower surfaces of the base material 3 is dried. .. The inside of the drying chamber 2 is in a pressurized state and is sealed to the outside.

At this time, since the base material 3 is supported by each guide roller 6, the coating material is dried more satisfactorily because it does not run in a floating state as in Patent Document 1.

In particular, since each guide roller 6 is rotationally driven via a magnet coupling 10 which is a contact joint means, it rotates extremely quietly without vibration and without generating noise. Further, even if the guide roller 6 expands and contracts in the axial direction due to heat, the magnet coupling 10 is absorbed through the gap G, so that the guide roller 6 is always properly rotationally driven. The plurality of guide rollers 6 are controlled so that their peripheral speeds are constant.

As a result, the coating agent coated on one side or both sides of the base material 3 which is the base material to be continuously running is appropriately dried, and the base material 3 is properly heated without causing curls or scratches. It is possible to provide the base material 3 which has been processed and has been subjected to high quality coating.

Since dust is not generated throughout the process, it is possible to surely prevent dust from adhering to the coated portion, and maintenance is very easy.

In the above embodiment, the present invention is applied to the drying furnace 1 for drying the coating material, but it is preferable to apply the present invention to the method of heat processing using a guide roller that expands and contracts in the axial direction by heat. Even in that case, it is possible to maintain a quiet state and rotate the guide roller properly without vibrating the guide roller via the non-contact joint means, and it is possible to absorb the expansion and contraction due to the heat of the guide roller and rotate the guide roller properly. It is possible to appropriately heat-process a continuously traveling base material to provide a high-quality workpiece.

The present invention is not limited to the above-described embodiment, and various modifications can be made as necessary.

1 Drying furnace 2 Drying chamber 3 Base material 6 Guide roller 8 Drive shaft 10 Magnet coupling

Claims (2)

In a traveling base material processing device that performs heat processing while horizontally transporting a continuous base material in a closed processing chamber.
A non-contact joint that is rotatably provided with a plurality of guide rollers for guiding the transfer of the base material in the processing chamber, and absorbs and transmits the thermal expansion and contraction of each guide roller between each guide roller and the driving means outside the processing chamber. Provide means ,
An upper heat source means and a lower heat source means are provided on the upper side and the lower side of the guide roller, respectively, and are formed so that hot air can be supplied from both heat source means and the processing chamber can be held in a pressurized state from the outside. A traveling base material processing device characterized by. The base material is a thin film-shaped base material to be coated, and the processing chamber is a drying chamber for drying the coating agent coated on one side or both sides of the base material to be coated, and the contacted joint means. the Ri magnet coupling der, wherein both the heat source means traveling substrate processing apparatus according to claim 1, characterized in that supplying the hot drying air.

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