KR20120083193A - Film coating apparatus - Google Patents

Abstract

PURPOSE: A film coating apparatus is provided to prevent the quality deterioration of a coated film by preventing the coated film from being flapped in the initial process of drying. CONSTITUTION: A film coating apparatus includes a drying unit(B). The drying unit is installed at a film coating unit(A) in order to dry a coated film(5) on a film shaped body to be coated(4). A hot wind blowing part(8) is installed at a drying chamber through which the body passes. The hot wind blowing part pressurizes the body between supporting rollers(7) based on the blown force of hot wind. The blowing direction of the hot wind blowing part is set to make the body between the supporting rollers to be downwardly sagged. The body is in constant contact with the supporting rollers.

Description

Membrane Coating Machine {FILM COATING APPARATUS}

The present invention is, for example, to a film coating apparatus configured to convey a film-like coating object to form a coating film on a surface of a nozzle portion for discharging a coating liquid from a slit-shaped tip discharging hole, The present invention relates to a film coater provided with a drying device for hot-air drying a coated film of a film-like workpiece to which the coating is completed.

It has a nozzle part which discharges the coating liquid supplied from a liquid supply part from the slit-shaped tip discharge hole, and discharges a coating liquid from the tip discharge hole of this nozzle part, The film-shaped object body which opposes this nozzle part is this nozzle part. By carrying out, the coating film of the film-form to-be-finished body which completed coating is provided with a drying apparatus in the conveyance downstream side of the film coating apparatus comprised so that a coating liquid may be coated in a film form to this film-form to-be-processed object.

In order to improve the mass productivity of such film coating, it is necessary to raise the drying capability in this drying apparatus, and to raise a conveyance speed.

In particular, in the case of coating on both sides of the film-shaped workpiece, since the coating film is dried on one side of the object to be coated once and then coated on the opposite side, the coating film on the opposite side is also dried. The drying capacity of each drying apparatus greatly influences mass productivity.

For example, a metal film, such as aluminum or copper, having an order of 15 μm to 30 μm in thickness is used as a coated object, and a binder (an anode active material such as lithium cobalt hydrate or a negative electrode active material such as graphite) is coated on the surface thereof. When a lithium ion battery forming material is prepared in which a thin film (dry film thickness) of 100 µm order is coated on both surfaces by mixing a solvent such as NNP) and the like as a coating liquid, even if the coating can be performed quickly and uniformly, Drying after this coating cannot be speedily performed, and mass productivity is still inferior.

In addition, if the drying capacity is reduced, but the conveying speed is increased, the drying device becomes long and large, and in double-sided coating, if there is no space for horizontally stacking this large drying chamber, it is configured as a two-story building to reciprocate and dry. Although it is a structure, it can still enlarge and it can also be expensive.

On the other hand, if the air blowing amount of hot air is raised from the initial stage of drying in order to increase the drying ability, there is a possibility that the uniformity and quality of the coating film may be impaired due to the fluff of the film-shaped coating object, and the binder in the coating liquid There is also a concern that binder migration, in which particles are ubiquitous, may occur.

Therefore, the drastic drying which raised the air volume at least from the drying initial stage cannot be performed.

Moreover, although it can also heat-dry from the inside by opposing a rod-shaped heater part, such as one IR heater, by radiation heat, internal drying by this radiation heat alone is not enough, and surface drying by hot air is indispensable.

Therefore, in the initial stage of drying, the Applicant supports a film-shaped coating film on a support roller and conveys it, while applying hot air of a breeze to the coating film to dry hot air, and at the same time, a rod-shaped heater part such as an IR heater is also provided. Floating drying by drying from the inside of the coating film by radiant heat to increase the drying capacity, and after the first drying is completed, the hot wind of strong wind from both sides is applied from both sides to support the supporting roller without drying on the strong roller. Second drying) to increase the drying capacity, and in the case of double-sided coating, a film coating apparatus for coating one side on each side is provided, and the drying apparatus is installed in two stages above and below. We have developed a revolutionary membrane coating machine that can improve mass production and at the same time reduce the size or size of installation space. .

However, in the initial stage of drying, although the blowing force is not as strong as that of floating drying, the hot air is blown to dry, so that the support roller and the film-like coated object are brought into contact with each other by the flutter of the film-like coated object caused by this blowing. There is a possibility that the quality of the coating film may be deteriorated even if the flutter is slightly due to repeated spacing.

Therefore, the applicant, in the initial stage of drying, carries the support roller with the support roller to weaken the blowing force of the hot wind, and the support roller is conveyed while drawing the arcuate trajectory and conveyed while applying tension to the film-shaped workpiece. The support roller is pressed against the support roller with an angle of a few degrees with respect to each support roller. In other words, the film-shaped workpiece and the support roller are pressed into contact with the support roller by raising the film-like object to the arch shape. In order to prevent the flutter, the film-shaped object to be coated has developed a drying apparatus having an arcuate drying chamber in which the film-like workpiece is held in press contact without being held in contact with the support roller.

However, on the other hand, in the drying apparatus B which provided this arcuate drying chamber 6C shown in FIG. 8 at least upstream of conveyance, as mentioned above, the film-shaped to-be-processed object 4 is not horizontally conveyed but arch-shaped. It gradually rises in an arc shape along the support roller 7, and a conveyance position becomes high. That is, for example, when the floating drying chamber 6B which is continuously installed as the second drying chamber is at such a high position and double-sided drying as described above, when the drying apparatus is constructed in two stages up and down so as not to occupy the installation space. In addition, since the initial stage of drying of the upper drying apparatus for drying the coating film on the opposite side also becomes arched, and the height becomes higher, the height of the entire apparatus becomes higher, making maintenance difficult, as well as constructing the apparatus. It was difficult and the apparatus was forced to be very expensive.

The present invention also solves these problems, and the drying ability is increased, the drying length can be shortened, the conveyance speed can be increased, and the mass productivity can be improved, and further, the quality of the coating film is not deteriorated. It is possible to prevent the deterioration of the quality due to the hot air blowing force by the hot wind drying of the step by the blowing force of the hot wind, and to prevent the deterioration of the quality due to the contact and separation between the support rollers, and the conveyance height and the height of the device, like the aforementioned arcuate drying chamber, are increased. It is also an object of the present invention to provide a breakthrough membrane coater such that horizontal conveyance can be realized in the initial stage of drying, maintenance can be easily performed, and high liquid liquefaction can be suppressed.

The gist of the present invention will be described with reference to the accompanying drawings.

The film-form to-be-adhered body 4 which opposes this nozzle part 1 is conveyed with respect to this nozzle part 1, discharging the coating liquid 3 from the front end discharge hole 2 of the nozzle part 1. The coating film 5 of the film-shaped to-be-adhered body 4 which finished the said coating to the film-coating apparatus A comprised so that the coating liquid 3 may be coated to the film-form to-be-processed object 4 in a film form. ) Is a membrane coater provided with a drying device (B) consisting of a drying chamber (6) for drying the supporting body, which is provided in the horizontal direction in the drying chamber (6) for conveying the film-like object (4). A hot air blower (8) for supplying hot air for hot-air drying the coating film (5) of the film-shaped workpiece (4) which is supported by the roller (7) and horizontally conveys the inside of the drying chamber (6) is provided. The hot air blown from the hot air blower (8) presses the film-shaped workpiece (4) between the support rollers (7) by blowing pressure. The blowing direction of the hot air blowing section 8 is set so that the film-shaped workpiece 4 between the supporting rollers 7 is recessed downward, and the film-shaped coating The drying device (B) is configured such that the coating member 4 is always kept in pressure contact with the membrane coating machine.

Moreover, the support roller 7 which makes the width direction of the said film-form to-be-processed object 4 the axial direction is provided in multiple numbers in a horizontal direction, and each support roller 7 supports the lower surface, and supports an upper surface. The hot air blower 8 is configured to horizontally convey the film-shaped to-be-coated body 4 while applying hot air blown from the hot air blower 8 to the coating film 5 of the upper surface. It arrange | positions above the said support rollers 7, sets the blowing direction of this hot air blower 8 below, and horizontally conveys the hot air blown from this hot air blower 8 between the said support rollers 7. What constituted the said drying apparatus B so that it may be pressed below and applied to the said film-form to-be-processed object 4 in between, and will be made to always recess down the film-shaped to-be-processed body 4 between these support rollers 7 at all times. It is related with the membrane coater of Claim 1 characterized by the above-mentioned.

Further, the hot air blowers 8 are arranged in a state where the hot air blowers 8 are arranged one by one above the support rollers 7, and the air blowing direction of each hot air blowers 8 is directed downward. The support roller 7 has a configuration in which the hot air blowing part 8 has a length in the width direction of the film-shaped workpiece 4 and blows hot air downward with a uniform blowing force in this width direction. The said film-shaped to-be-processed body 4 in horizontal conveyance of the inside becomes V shape or U shape once in a conveyance direction by the blowing pressure from upper direction between the support rollers 7, and is concave downward and is concave downward. It is related with the film coater of Claim 2 which comprised the said conveying apparatus B so that it may be uniformly concave.

In addition to the film-shaped coating, a drying heater unit 10 for drying the coating film 5 by radiant heat is added to the drying chamber 6 in addition to a hot air dryer by hot air from the hot air blowing unit 8. It arrange | positions in the state which opposes the sieve 4, and comprised the said drying apparatus B, It is related with the membrane coater of Claim 1 characterized by the above-mentioned.

In addition, the said heater heater 10 for drying does not form the plate body which covers the said film-shaped to-be-processed object 4, The several heater rod-shaped part 11 is provided through the ventilation gap 13 through which the said hot air flows. It is related with the membrane coater of Claim 4 which set it as the structure arrange | positioned in the surface direction of the said film-form to-be-adhered body 4.

Moreover, the said drying chamber 6 is made into 6 A of 1st drying chambers, and the floating hot-air blowing part 12 is arrange | positioned up and down, and the said film-shaped to-be-coated between the upper and lower floating hot-air blowing parts 12 are carried out. A floating drying chamber for horizontally conveying the sieve 4 and drying with hot air was used as the second drying chamber 6B, and the second drying chamber 6B was continuously installed in the first drying chamber 6A to constitute the drying apparatus B. It relates to the membrane coater of any one of Claims 1-5 characterized by the above-mentioned.

Moreover, the upper and lower stages of the said drying apparatus B which consist of the said drying chamber 6 which conveys the film-form to-be-processed object 4 which finished the said coating are provided, this upper drying apparatus BX and a lower drying apparatus are provided. The coating film 5 coated on one side of the said film-form to-be-adhered body 4 by the said film coating apparatus A which provided one drying apparatus BY (BX) of (BY) on one side. ), Which is a one-sided drying device for drying the film coating, wherein the other drying device (BX (BY)) is further provided on the opposite side to the opposite surface of the film-shaped to-be-processed body 4 which has finished this drying. It is an opposite surface drying apparatus which coats by the apparatus A, and dries the coating film 5 of the opposite surface of the said film-form to-be-processed body 4 which finished this coating, and with this two upper and lower stage drying apparatus Coating of both surfaces of the film-form to-be-processed object 4 by the said upper side drying apparatus BX and the said lower side drying apparatus BY The membrane coater according to any one of claims 1 to 5, which is configured to sequentially dry the membrane 5.

Moreover, the upper and lower stages of the said drying apparatus B which consist of the said drying chamber 6 which conveys the film-form to-be-processed object 4 which finished the said coating are provided, this upper drying apparatus BX and a lower drying apparatus are provided. The coating film 5 coated on one side of the said film-form to-be-adhered body 4 by the said film coating apparatus A which provided one drying apparatus BY (BX) of (BY) on one side. ), Which is a single-side drying device for drying, wherein the other drying device (BX (BY)) is further provided on the opposite side on the opposite side of the film-shaped to-be-processed body 4 which has finished this drying. Coating apparatus by coating apparatus (A), and it is set as the opposite surface drying apparatus which dries the coating film 5 of the opposite surface to the said film-form to-be-processed object 4 which finished this coating, and this upper and lower two-stage drying apparatus Coating of both surfaces of the film-form to-be-processed object 4 by the said upper side drying apparatus BX and the said lower side drying apparatus BY A membrane coater as set forth in claim 6, which is configured to sequentially dry the membrane (5).

Since this invention is comprised as mentioned above, drying capacity becomes high, drying length can be shortened, a conveyance speed can be raised, mass productivity can be improved, and further, without deteriorating the quality of a coating film, especially the initial stage of drying It is possible to prevent deterioration of the quality caused by contact and separation with the support roller by preventing the flap due to hot wind drying by hot air blowing, and also increase the conveyance height and the height of the device as in the above-described arch-shaped drying chamber. It is possible to prevent it, to achieve horizontal conveyance even in the initial stage of drying, to be easy to maintain, and to suppress the high liquefaction of the device.

Moreover, in invention of Claim 2, 3, it becomes a membrane coater excellent in further practicality by which the said effect and effect are exhibited favorably by a simpler structure.

In addition, in the invention according to claim 4, 5, 6, the drying ability is further improved, the drying length can be shortened by that, and the operation speed can be increased. do.

In addition, in the invention according to Claims 7 and 8, double-sided coating can be performed with the drying apparatus made up and down two stages (two-story building), and the installation space can be reduced in size, space can be reduced, and the overall height can also be lowered. This makes it possible to realize an extremely excellent membrane coating machine for double-side coating, such as easy maintenance and cost reduction of the apparatus.

1 is a schematic configuration explanatory front view of this embodiment.
2 is an enlarged front view for explaining the enlarged operation of the main part of the embodiment.
3 is an explanatory perspective view of the main part of the present embodiment.
It is explanatory front view which shows the front appearance as a figure which shows the joint structure of this embodiment and is comprised.
5 is an operational explanatory front view of the main part of the present embodiment.
6 is a sectional side view for explaining the operation of the main part of the embodiment.
Fig. 7 is a side cross-sectional view illustrating the operation of the opening / closing lid portion of the present embodiment in a raised and opened state (the lower lower drying device forming portion slides further backward to fully open).
8 is an explanatory side view of the arcuate drying chamber.

EMBODIMENT OF THE INVENTION Embodiment of this invention considered suitable is demonstrated based on drawing, and operation | movement is demonstrated easily.

The film-like to-be-processed body 4 which finished coating by the film coating apparatus A is supported by the support roller 7 provided in the horizontal direction, and is horizontally conveyed, and the coating film 5 of the upper surface is carried out by hot air After drying with hot air blown by hot air blown from the rich 8, it is made into the 1st drying in the 1st drying chamber 6A, and is made into the 1st drying chamber 6B (floating drying chamber 6B), for example. As 2 drying, hot air is blown from both front and back by the floating hot air blowing part 12 installed in the upper and lower sides, without being supported by the support roller 7, for example, and it is floating.

In the present invention, even in the initial stage of drying until such floating drying is possible, the present invention is constituted by a drying apparatus (B) in which the support rollers (7) are arranged in parallel in the horizontal direction and conveyed horizontally to dry them by hot air. The present invention applies hot air by the hot air blowing section 8 to the film-shaped workpiece 4 between the supporting rollers 7 so as to concave downward under the blowing pressure of the hot wind. It consists.

That is, for example, the hot air blower 8 is arranged above the support rollers 7, and the hot air blower 8 blows hot air downward, and the film-like workpiece 4 With the blowing pressure of the hot air which hot-air-drys the coating film 5 of the upper surface of (), the film-form to-be-processed body 4 between the support rollers 7 in a horizontal conveyance is pressed downward, and this support roller 7 By constructing the film-shaped to-be-adhered body 4 in between normally concave downward, this film-shaped to-be-adhered body 4 will be press-contacted by the support roller 7 at all times.

Therefore, the film-shaped to-be-adhered body 4 is carried out even if the support roller 7 is arranged in an arc like the arch-shaped drying chamber 6C as shown in FIG. 8 mentioned above, and the film-shaped to-be-processed object 4 is not conveyed upward. Can be held in contact with the support roller 7 to prevent flapping, so that horizontal conveyance can be achieved, and the conveyance height of the film-like workpiece 4 as in the arcuate drying chamber 6C is increased, The increase in the overall height can be suppressed, so that maintenance is easy and the cost of the device can be reduced.

In addition, this hot air blower 8 may be one section across each support roller 7, and the arrangement position, number, blowing direction, and the like can be set as appropriate.

For example, the hot air blowers 8 are arranged in parallel with each other, one section above the support rollers 7, and the air blow openings are formed on the bottom surface of each of the hot air blowers 8 to provide a blowing direction. The hot air blowing section 8 (blowing opening section) has a length in the width direction of the film-shaped workpiece 4 and is uniform in this width direction. A configuration for blowing hot air downward with wind power (a configuration in which a plurality of blowing openings are formed in a slit shape in the width direction or in a transverse direction), wherein the film-shaped workpiece is being transported horizontally between the support rollers 7. (4) becomes V-shaped or U-shaped once in a conveyance direction by the blowing pressure from above between one support roller 7 across one section, and becomes concave downward, and it is concave downward and it is uniform in the width direction Concave The hot air and sets the location, number, the blowing direction of the blower (8) (ventilation openings).

In addition, by further using the drying heater unit 10 which also performs internal drying by radiant heat such as IR heater, the drying capacity is further improved, whereby the blowing amount of hot air is also good at least, and thus a pressing pressure for preventing flapping is generated. The air volume can sufficiently increase the initial drying capacity, and as described above, if the drying is carried out after the initial drying, the drying capacity can be improved, the drying length can be shortened, or the conveyance speed can be increased. The mass productivity of can be improved.

In addition, when the drying apparatus B is made into a two-story building of two stages up and down, single side coating, single side drying, reverse side coating, and reverse side drying are performed in order by the left and right membrane coating apparatus A, Since the coating can be realized in the same manner and the device height can be designed as low as described above, it is possible to realize an extremely innovative membrane coating machine for double-side coating, which can be easily maintained and the cost of the device can be reduced.

[Example]

Specific embodiments of the present invention will be described with reference to the drawings.

In this embodiment, the film-shaped to-be-drawn object 4 taken out from the winding roll 17 is taken out and conveyed through the support roll 18 which opposes the nozzle part 1 for coating, and this nozzle part 1 To the film coating apparatus A configured to discharge the coating liquid 3 from the tip discharging hole 2 of the c) and to coat one surface of the to-be-coated body 4 supported by the support roll 18. This invention is applied to the membrane coater provided with the drying apparatus B which consists of a drying chamber 6 which dries the coating film 5 of the film-form to-be-processed object 4 which finished coating.

That is, the support roller 7 is provided in parallel to the said drying chamber 6 which conveys the film-form to-be-processed object 4 which finished coating by the said film coating apparatus A, and this support roller ( 7) and a hot air blower (8) for sending hot air for hot-air drying the coating film (5) of the film-shaped to-be-processed body (4) which carries out the inside of this drying chamber (6) horizontally, and this hot air The hot air discharge | emission part 9 which discharges is provided, the surface of the coating film 5 is heat-dried by the hot air sent from this hot air blowing part 8, and the hot air which dry | disconnects this hot air drying is produced from this coating film 5 It is comprised so that it may discharge | emit out of the drying chamber 6 from the hot air discharge part 9 with gas.

In this embodiment, in combination with this hot air drying, the inside of the coating film 5 is heat-dried by radiant heat, and the drying heater part 10 which can improve a drying capability even in the drying initial stage which becomes hot air drying by a breeze is provided. It is arrange | positioned near the film-shaped to-be-processed object 4 in the opposing state. This drying heater part 10 is not formed as a plate body, but the structure in which many heater rod-shaped parts 11 were arranged in the surface direction of the to-be-coated body 4 through the ventilation gap 13 through which the said hot air passes. As a result, the above-described hot air drying and the possibility of width width due to vaporization gas are considered as close as possible, and drying by radiant heat is used in combination to further improve the drying capacity.

In this embodiment, the hot air blown from the hot air blower 8 presses the film-shaped workpiece 4 between the support rollers 7 by a blowing pressure, and between the support rollers 7. The blowing direction of the hot air blowing section 8 is set so that the film-shaped workpiece 4 is recessed downward, and the film-shaped workpiece 4 is always provided on each of the supporting rollers 7. It is comprised so that press contact may be maintained.

That is, the support roller 7 which makes the width direction of the said film-shaped to-be-processed object 4 the axial direction is provided in multiple numbers in the horizontal direction in the drying chamber 6 which comprises the drying apparatus B, and each each support is carried out. The film 7 to be horizontally conveyed is supported while supporting the lower surface on the roller 7 while applying hot air blown from the hot air blowing section 8 to the coating film 5 on the upper surface. The hot air blower 8 is disposed above the support rollers 7, the air blower of the hot air blower 8 is set downward, and the hot air blown from the hot air blower 8 is supported. Applying to the film-shaped to-be-processed object 4 in the horizontal conveyance between rollers 7 below, and pressing so that the film-shaped to-be-processed body 4 between these support rollers 7 may be always recessed below. The drying apparatus B is comprised.

Specifically, in the present embodiment, while performing the desired purpose, that is, hot air drying in which the fluff is suppressed as much as possible, the hot air is used to press-contact the support roller 7 to hold the support roller 7 on the contrary. For the purpose of preventing contact and separation with the rollers 7, the hot air blowers 8 are arranged in a parallel state one by one over the support rollers 7, and the hot air blowers ( The blowing direction of 8) is set downward, and the hot-air blowing part 8 has a length in the width direction of the film-shaped object to be coated 4, and the blower has a uniform blowing force in this width direction. The film-shaped workpiece 4 in the horizontal conveyance between the support rollers 7 in a configuration in which hot air is blown toward the air (a slit shape in the width direction or a plurality of blowing openings in the transverse direction). Support roller (7) The wind pressure is up for transmission across the conveying direction in one period every V shape or U shape by the upper side of and constitutes the transfer device (B) so as to be recessed downward is uniformly concave in the width direction.

In addition, in this embodiment, this drying chamber 6 is made into 6 A of 1st drying chambers, and the floating hot air blowing part 12 is arrange | positioned up and down, and the said hot air blowing part 12 for floating above and below is the said film. A floating drying chamber for horizontally conveying the workpiece 4 having a shape and drying it with hot air is used as the second drying chamber 6B. The second drying chamber 6B is continuously installed in the first drying chamber 6A, and the drying apparatus ( After constructing B) and drying the coating film 5 at the beginning of drying without fluttering, it is set as the structure which dry rapidly without the support roller 7 even if it flutters at once, and the drying capability is improved extremely.

In more detail, in the present embodiment, for example, a metal film such as aluminum or copper having a thickness of about 15 μm to 30 μm is used as the object to be coated 4, and lithium cobaltate or the like is formed on the surface thereof. A lithium ion battery forming material for coating and forming a thin film (dry film thickness) of 100 µm order as a coating liquid 3 by mixing a binder (solvent such as NNP) with an anode active material such as graphite or an anode active material such as graphite It is a film coating apparatus A which manufactures the above, The said drying apparatus is provided in the conveyance downstream of each film coating apparatus A which coats for every one surface.

In the present embodiment, the hot air inlet 15 connected to the hot air supply connecting portion 14 to which hot air is supplied is provided above the support roller 7, and hot air further branches from the hot air inlet 15. A plurality of hot air blowers 8 to be supplied are provided in parallel, and the hot air blowers 8 (blowing openings) are arranged above the central portion between the support rollers 7 in the width direction. It consists.

And with the blowing force of the hot wind blown downward from this hot-air blowing part 8, the film-shaped to-be-adhered body 4 between this with respect to the support roller 7 is angled with respect to the support roller 7 (抱 角) is inclined at about 1 to 2 degrees to be pressed.

More specifically, in this embodiment, the upper and lower plural stages of the drying device B made of the drying chamber 6 through which the film-shaped to-be-processed object 4 after the coating is conveyed and passed are installed, and the upper drying device is provided. The film-like workpiece 4 is formed by the film coating device A provided with one drying device (lower drying device BY) of (BX) and the lower drying device BY. It is set as the single-side drying apparatus which dries the coating film 5 coated on one surface, and the other drying apparatus (upper drying apparatus BX) is opposite to the said film-form to-be-processed body 4 which finished this drying. Reverse surface drying which coats by the said film coating apparatus A further provided on the opposite side, and dries the coating film 5 of the opposite surface of the said film-form to-be-processed body 4 which finished this coating. The upper and lower stages of the upper drying device (BX) and the lower drying device (BY) It constitutes the two sides of the coating film 5 of the blood coating body 4 in shape in order to dry.

In addition, in this embodiment, the drying apparatus B which consists of such a drying chamber 6 (in this embodiment, the upper and lower two stage drying apparatus BX and BY) is divided into several block, and it arrange | positioned continuously in the horizontal direction, and it is set as the structure. Each block is provided with a hot air blowing unit 8 and a hot air discharge unit 9 provided for each drying chamber (drying chambers 6 of the upper and lower drying units BX and BY of each block). The drying chamber is configured to pass through.

In addition, many of the heater rod-shaped portions 11 which are arranged in a state of being parallel to the object to be coated 4 and arranged side by side in the plane direction of the object to be coated 4 distribute high temperature medium such as high temperature steam or oil. An infrared heater (IR heater) which emits infrared rays from the ceramic on the surface by heat is used.

Specifically, in the present embodiment, the pipe for distributing high temperature water vapor is formed of ceramic or coated with ceramic, and the heater rod-shaped portion 11 is reciprocated left and right to reciprocate a predetermined range of the object to be coated 4. It is covered with a plurality of heater rod-shaped portions 11 which are provided in parallel, and heat-drys the coating film 5 from the inside by radiant heat by infrared rays emitted from the surface by flowing high temperature water vapor to each of the heater rod-shaped portions 11 to communicate with each other. It consists of IR heater of the reciprocating rod-shaped parallel part type | mold.

In other words, instead of a plate-shaped IR heater, a plurality of heater rod-shaped portions 11 connected to each other, which reciprocate inverted to the left and right to emit infrared rays from the surface through high-temperature steam, are constituted by IR heaters of the type in parallel. The longitudinal direction of the rod-shaped portion 11 is in a direction orthogonal to the conveying direction of the to-be-coated body 4 so as to be parallel to the conveying direction of the to-be-coated body 4, and the length of the to-be-coated body 4 is It is set as the structure arrange | positioned adjacently to the upper direction of the to-be-coated object 4 through the ventilation gap 13 in the direction (conveying direction).

In the present embodiment, as described above, the drying apparatus B is configured to have two-side coating by the left and right membrane coating apparatus A as the upper and lower two-stage configuration, and one membrane coating apparatus A After conveying the film-shaped to-be-coated object 4 coated on the surface to the one side drying chamber BY of the two stages as the said single-sided drying chamber, it is made to reverse, and the other side to the other film coating apparatus A while switching. Coating and coating the coating film 5 coated on both surfaces of the said film-form to-be-adhered body 4 through the film-form to-be-processed object 4 which passed the upper side drying apparatus BX. It is configured to dry.

In the present embodiment, a small movable block is formed in advance, that is, a block body as a drying device forming part having a size that can be slidably slideed along the bottom surface or can be easily suspended and conveyed. If necessary, joints are connected at the site (in the factory) so that both the top and bottom drying units (BX, BY) can be made to a desired drying length.

In other words, the upper and lower drying unit forming units and the lower drying unit forming units are provided above and below each block set to the movable size, and the block bodies are sequentially neighbored laterally and connected in a plurality of rows to form a desired length. That is, the upper drying apparatus BX and the lower drying apparatus BY of the drying length which can raise a conveyance speed for the improvement of mass productivity are made to be jointly formed in both upper and lower sides.

In addition, the upper and lower portions of each of the block bodies, which communicate with the upper drying device forming portion and the lower drying device forming portion, respectively, are used as an exit or inlet through which the film-shaped to-be-transformed body 4 passes through. Each block body is arranged next to each other in order so that the upper and lower entrance part of each block body may mutually contact and communicate, and the sealing part which does not leak hot air is formed in the connection part of each block body, and the said upper drying apparatus ( BX) and the said lower drying apparatus BY are jointly formed at predetermined length up and down by connection of these block bodies.

For example, the doors may face each side of each block body, but the doors may be joined to each other, and may be fixed to each other, or to be fixed by locking the packing while pressing the packing part, but the taped state (joint) is simply taped. It is good also as a structure which it winds up, etc., and seals and connects. In the embodiment described later, the packing portion as the seal portion is provided in a protruding state so as to surround the entrance and exit portion, and the packing portion is pressed to face each block body, and the tape or the like is sealed and fixed thereto.

In addition, in this embodiment, the casters 16 are installed at the bottom of each of the block bodies so as to be slidably movable on the bottom surface, and the respective entrances and exits are simply pushed in order to neighbor each other. The parts are arranged to face each other (but they are in communication with each other), and a seal part is formed therein. For example, as described above, the packing part protruding the side surface of the periphery of the entrance and exit part is pressed, and the butt joint part is wound with a tape to seal it. The upper drying device BX and the lower drying device of a predetermined length are formed by the upper drying device forming unit and the lower drying device forming unit of each block body up and down. (BY) is a structure in which joint formation is formed.

In addition, each block body of the present embodiment is provided with a hot air inlet 15 for introducing hot air and a hot air discharge part 9 for discharging the hot air in a framework structure set to a size that is easily transported to each factory to be installed. The upper and lower drying device forming parts and the lower drying device forming parts are formed above and below, and the entrance and exit portions through which the object 4 is conveyed are provided at the left and right ends of the upper drying device forming part and the lower drying device forming part. Then, after the factory is brought in, the block caster 16 slides along the bottom surface by the lower casters 16, and the respective block bodies are arranged next to each other in order so that the upper and lower doors of each block body can communicate with each other. The said seal part which does not leak hot air is formed in the part, and it connects.

In the present embodiment, the drying apparatus B is used for improving the maintenance properties such as the notification work of the film-shaped workpiece 4, the work for removing the same, and the repair and replacement of the support roller 7. Drying chamber 6 constituting the (compartmental drying chamber for each block body) is composed of a main body portion 21 that forms it and a plurality of cover portions 22 for closing the upper opening of the main body portion 21 so as to be openable, The hot air blower 8 or the hot air discharger 9 is provided on the side of the cover 22, and the cover 22 is lifted and the upper opening of the body 21 is opened to open the body 21. It is set as the structure which exposes the support roller 7 provided in this.

That is, in the present embodiment, the hot air inlet 15 is detachably connected to the hot air supply connection 14 and the hot air inlet 15 for introducing hot air into the hot air blower 8 is detachably connected to the hot air induction connecting part. A hot air derivation unit for discharging hot air from the hot air discharge unit 9, and an introduction / extraction unit for the drying heater unit connected to the introduction / discharge connection unit for the high temperature medium such as the IR heater, is provided in the lid unit 22. I make it a constitution.

Therefore, by opening this cover part 22 and opening an upper opening part, the hot air introduction part 15, the hot air derivation part, etc. which were provided in this cover part 22 with this cover part 22 move, and from the connection part, At the same time, the upper opening of the main body portion 21 is opened, and the upper portion of each supporting roller 7 is exposed, so that the support roller 7 can be replaced and the main body portion 21 can be easily cleaned. After the maintenance, the notification operation for passing the respective support rollers 7 on the film-shaped to-be-processed object 4 again can be easily performed.

In addition, in the present embodiment, the lid part 22 is provided so that the ups and downs can rotate, and the front part is lifted upward, so that the upper opening of the main body part 21 is not opened. It is installed so as to be horizontally slidable to the rear, and is installed so as to be able to be opened and closed. By the horizontal slide to the rear, the upper opening is configured to be opened so that the height of the device can be suppressed to a low level. The hot air inlet 15 of the hot air blower 8 of FIG. 22 and the hot air derivation of the hot air discharger 9 deviate from the connection with the hot air supply connection 14 and the hot air discharge connection, respectively, and slide back to return. The connection is made again so that hot air is blown from the hot air blower 8 into the drying chamber 6, and hot air is discharged from the hot air blower 9.

Therefore, at least the lower drying device BY is constituted by such a horizontally slidable lid portion 22 and the main body portion 21 which is opened and closed by the lid portion 22 so that the height dimension can be suppressed and a large pipe is required. The piping structure for supplying and discharging the hot air can also be easily detached by such a connecting portion, so that the movable portion is not required for the large-scale piping itself, so that the cost can be easily realized.

In addition, the upper and lower openings are opened by attaching and detaching the lid portion 22 by lifting and lowering the connecting portion 22 in such a manner that the attachment and detachment of the connecting portion is made simple and secure. In this case, since the lifting height required for attachment and detachment of the connection part and the upper space required for maintenance may be secured, in this case, the height dimension of the upper and lower two-layer configurations can be sufficiently suppressed, and the height of the upper drying device (BX) The position, that is, the position of the upper main body part 21 (each divided drying chamber) can be designed low, and also the maintenance property is improved further as well as manufacture.

In addition, this invention is not limited to a present Example, The specific structure of each structural requirement can be designed suitably.

1: nozzle part
2: tip discharge hole
3: coating solution
4: film-like workpiece
5: coating film
6: drying chamber
6A: first drying chamber
6B: second drying chamber
7: support roller
8: hot air blower
10: drying heater part
11: Heater rod upper part
12: Floating hot air blower
13: ventilation gap
A: membrane coating device
B: drying device
BX: upper drying unit
BY: lower drying unit

Claims (8)

The film-shaped coating object is conveyed by conveying the film-shaped coating body which opposes this nozzle part with respect to this nozzle part, discharging a coating liquid from the front-end discharge hole of a nozzle part. A film coater provided with a drying device comprising a drying chamber for drying a coated film of a film-shaped to-be-finished object, wherein the film coating device configured to coat the coating liquid in a sieve to form a film. In the drying chamber which conveys the to-be-processed object of a product, the hot-air blower part which carries out the hot air which carries out hot air drying of the coating film of the said film-shaped to-be-shaped object which carries out the horizontally conveyed inside of this drying chamber by carrying out the support roller installed in the horizontal direction is provided. And the hot air blown from the hot air blower presses the film-shaped workpiece between the support rollers by blowing pressure, thereby supporting the support rollers. And a blowing direction of the hot air blower to set the film-like workpiece to be downward, and the drying device is configured to maintain pressure-contacting of the film-shaped workpiece to the respective support rollers at all times. Membrane potter. The method of claim 1,
The support roller which makes the width direction of the said film-form to-be-processed object the axial direction is provided in parallel in the horizontal direction, and each support roller supports the lower surface, and the said hot air is blown to the said coating film of the upper surface. The film-shaped workpiece is conveyed horizontally while applying hot air blown from abundance. The hot air blower is disposed above the support rollers, and the blowing direction of the hot air blower is set downward. The drying is performed such that hot air blown from the hot air blower is applied downward to the film-shaped workpiece in the horizontal conveyance between the support rollers, and pressed downward to concave the film-shaped workpiece between the support rollers at all times downwards. The membrane coater which comprised the apparatus. The method of claim 2,
The hot air blowers are arranged in a state where the hot air blowers are arranged one by one across the support rollers, and the blowing direction of the hot air blowers is directed downward, and the hot air blowers are formed in the film-like workpiece. The film-shaped workpiece in the horizontal conveyance between the support rollers has a length in the width direction of the air and blows hot air downward with a uniform blowing force in the width direction. The said film-forming apparatus comprised the said conveying apparatus so that it might become a V shape or U shape one time in a conveyance direction by a blowing pressure, and to be concave downward and to be uniformly concave in the width direction. The method of claim 1,
In the drying chamber, in addition to hot air drying by hot air from the hot air blowing unit, a drying heater part for drying the coating film by radiant heat is disposed in a state opposite to the film-shaped workpiece, so that the drying device is configured. Membrane potter. The method of claim 4, wherein
The drying heater part is not formed as a plate body covering the film-shaped workpiece, but a plurality of heater rod-shaped parts are arranged in the plane direction of the film-shaped workpiece through a ventilation gap through which the hot air flows. Membrane coating machine characterized in that. The method according to any one of claims 1 to 5,
The drying chamber is used as a first drying chamber, and a floating hot air blowing unit is disposed above and below, and a floating drying chamber for horizontally conveying the film-shaped object to be transported horizontally between the upper and lower floating hot air blowing units as a second drying chamber. And the second drying chamber is continuously installed in the first drying chamber to constitute the drying apparatus. The method according to any one of claims 1 to 5,
The said film | membrane which provided the said drying apparatus which consists of the said drying chamber which conveys the film-form to-be-processed object which passed the said coating up and down, and provided one drying apparatus of this upper side drying apparatus and the lower side drying apparatus on one side. A coating device coated on one surface of the film-shaped workpiece by a coating device is used as a single-sided drying device, and the other drying device is opposite to the film-shaped workpiece which has been dried. On the surface, it coats with the said film coating apparatus further installed in the opposite side, and it is set as the opposite surface drying apparatus which dries the coating film of the opposite surface of the said film-form to-be-finished body which finished this coating, and this upper and lower two stage drying It is comprised so that the coating film of both surfaces of the said film-form to-be-processed object may be dried one by one by the said upper drying apparatus which becomes an apparatus, and the said lower drying apparatus. Based coating. The method of claim 6,
The said film | membrane which provided the said drying apparatus which consists of the said drying chamber which conveys the film-form to-be-processed object which passed the said coating up and down, and provided one drying apparatus of this upper side drying apparatus and the lower side drying apparatus on one side. A coating apparatus coated on one surface of the film-shaped object to be coated by a coating device is used as a single-sided drying device, and the other drying device is placed on the opposite side of the film-like object to which the drying is completed. It coats with the said membrane coating apparatus further installed in the opposite side, and it is set as this upper and lower two stage drying apparatus as an opposite surface drying apparatus which dries the coating film of the opposite surface of the said film-form to-be-finished body which finished this coating. A membrane diagram constituted by the upper drying apparatus and the lower drying apparatus to sequentially dry the coated films on both sides of the film-shaped workpiece. Group.

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