JP2013085975A - Coating device and coating method using the same - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a coating device capable of reducing usage of coating material and capable of coating an object with coating material without reducing the reactivity over time even if the coating material has a property of reducing its reactivity over time, and a coating method using the coating device.SOLUTION: The coating device 10 includes a mounting stage 13 for stably holding a plate-like base material 18 to be coated with coating material, a coating unit 20 arranged at a position above the base material 18 on the mounting stage 13, a liquid feeding means, and a moving mechanism. The coating unit 20 includes a coating material supply port 32 provided on an edge surface 28b of a projection part 28 projecting downward, and a supporting/moving means for stretching and supporting a coating material impregnation cloth 44 in a state that the cloth is made to contact the edge surface 28b and capable of moving the cloth to the stretch direction. As the base material 18 can be quickly coated with the coating material thereby after the coating material flows out from the coating material supply port 32, the base material is coated with the coating material without reducing the reactivity over time even if the coating material has a property of reducing its reactivity with the base material 18 over time.

Description

  The present invention relates to a coating device and a coating method using the coating device, and more particularly, a coating device for impregnating a coating material with a coating material impregnated with a coating material and applying the coating material to the surface of a substrate via the coating material for coating material. The present invention relates to a coating method using the coating apparatus.

  Mobile phones, digital cameras, and tablet-type display units, etc., finger or part of the body touches the display unit and fingerprints get dirty, or when touched with wet hands, water adheres to it. The screen becomes difficult to see. In particular, in terminals equipped with a touch panel, it is necessary to prevent fingerprint stains and water from adhering after operation, or to easily remove the adhering material so that operations on the screen can be performed smoothly. .

  For this purpose, for example, a silane coupling agent-containing coating composed of an organic silane compound as described in Patent Document 1 is applied onto a substrate such as a glass plate, and the silane coupling group at the end of the compound is applied to the substrate. A dehydration condensation reaction with a hydroxyl group is combined with the base material to impart water repellency and oil repellency.

  For the application of the silane coupling agent-containing coating, a wet method capable of uniform treatment on the surface of the substrate is preferably used, and examples thereof include dip coating (soaked coating) and spray coating. Further, Patent Document 2 discloses a coating apparatus that supplies a coating material to an endless belt in FIG. 7 and applies the endless belt holding the coating material in contact with a substrate.

JP 2000-094567 JP2004-073925

  However, in dip coating, the entire base material is immersed in the paint, so that the paint is applied to both surfaces of the base material. This gives water and oil repellency to the back side of the base material, which does not need to be painted, and it is impossible to apply adhesive or ink for bonding to the mobile phone body etc. on the back side. This causes a manufacturing defect. Furthermore, not only the amount necessary to apply to the surface of the base material but also the amount of paint that immerses the entire base material is required, which leads to an increase in manufacturing cost.

  In spray painting, only the surface of the base material can be painted. However, since the sprayed paint scatters to places other than the surface of the base material, the amount of paint used is relatively large. In addition, the paint encloses air during spraying. That is, when the silane coupling agent-containing paint described in Patent Document 1 entraps air, the silane coupling group in the paint reacts with moisture in the air and the reaction proceeds, and the reactivity with the glass plate is increased. The problem of a drop occurs. Thereby, the water repellency / oil repellency of the substrate after application may be insufficient, or the water repellency / oil repellency may be uneven.

  Furthermore, according to the coating apparatus described in Patent Document 2, it is possible to apply only the surface of the glass plate in the same manner as spray coating, and by applying the paint through an endless belt, there is no problem of paint scattering and the like. The amount used is also reduced. However, the coating material remaining on the endless belt after application reacts with moisture in the air while circulating on the endless belt orbit, and the reactivity with the substrate decreases, and the coating material whose reactivity has decreased is applied to the endless belt. There is a possibility that it may be applied to the substrate after the lap.

  The present invention has been made in view of the above problems, and its purpose is to reduce the amount of paint used and to reduce the reactivity over time even for a paint whose reactivity declines over time. It is providing the coating device which can apply | coat to a target object, and the coating method using the coating device.

  The invention according to claim 1 for solving the above object is a paint application apparatus, which stably holds an object to which the paint is applied, and the object held by the holding part. A coating material supply portion having a protruding portion that protrudes downward, a coating material supply port provided on a tip surface of the protruding portion, and a long strip-shaped cloth for impregnating the coating material. A coating unit that has tension support in a state of being in contact with the surface, and that is movable and movable in the stretching direction, and a liquid feeding unit that sends paint to the paint supply port of the coating unit; And a moving mechanism that performs a relative contact / separation movement and a substantially parallel movement between the coating unit and the object.

  According to this configuration, the paint that has flowed out from the paint supply port is impregnated and held by the paint impregnation cloth that comes into contact with the front end surface of the protrusion. Then, the tip surface of the projecting portion is moved downward to bring the paint impregnating cloth into contact with the object, and the paint impregnating material is quickly removed from the paint impregnating cloth by moving substantially in parallel with the object in contact with the object. Can be applied to an object. In this way, since the paint can be applied to the object immediately after flowing out from the paint supply port, the reactivity decreases with time even for a paint whose reactivity with the object decreases with time. It can apply without.

  Furthermore, by moving the part of the coating impregnating cloth after coating applied by the support / moving means to bring the unused part into contact with the tip surface of the protruding part, and always impregnating with new paint, The paint can be applied to the object in a state where the reactivity does not decrease with time. That is, it is possible to prevent the paint from stagnating on the endless belt or the coating pad for a long time as in the case of using the endless belt or the coating pad.

  In addition, since the application to the object is performed by the paint impregnated cloth impregnated and held with the paint, there is no waste of the amount of paint used due to the scattering of the paint, and the paint is thinly and widely spread on the object by the substantially parallel movement described above. The paint can be spread and the amount of paint used can be saved.

  According to a second aspect of the present invention, in the coating apparatus according to the first aspect, the front end surface of the projecting portion extends a predetermined length in a direction orthogonal to the stretching direction of the contacted material for impregnating the paint. And it has a ditch | groove extended along this extension direction and passing the said coating material supply port, It is characterized by the above-mentioned.

  According to this configuration, the paint that has flowed out from the paint supply port is rapidly developed in the recessed groove provided on the front end surface of the protruding portion in the extending direction of the front end surface. Therefore, the coating material is impregnated and held in the paint impregnation cloth over a predetermined length of the front end surface of the protrusion. Thereby, the paint can be spread more thinly and widely on the object, and the amount of paint used can be more effectively saved.

  A third aspect of the present invention is the coating apparatus according to the second aspect, wherein a plurality of the coating material supply ports are provided at predetermined intervals in the extending direction of the tip end surface.

According to this configuration, the coating material can be spread more quickly in the concave groove along the extending direction of the front end surface by a plurality of coating material supply ports provided at predetermined intervals. Therefore, since the paint can be impregnated in the cloth for impregnating the paint quickly over a predetermined length in which the front end surface of the protrusion extends, the paint flowing out from the paint supply port can be applied to the object more quickly. it can.
The invention described in claim 4 is the coating apparatus according to any one of claims 1 to 3, wherein the relative movement by the moving mechanism is performed by moving the coating unit. To do.

  According to this structure, since the whole coating unit is comprised as one moving body, an apparatus structure can be made compact. And there exists an advantage that the process of apply | coating a coating material to each target object is completed only by the movement of an application | coating unit.

  Invention of Claim 5 is the coating method of the coating material using the coating device of any one of Claims 1-4, Comprising: The target object holding process which hold | maintains the target object in the said holding part, A supporting step of supporting the coating-impregnating cloth by the supporting / moving means so as to be stretched in a state of being in contact with the tip end surface of the protruding portion; and the liquid supply means to the coating supply port of the coating unit. A liquid feeding step of feeding the paint and impregnating and holding the paint flowing out from the paint supply port in the paint impregnation cloth, and the paint impregnation cloth contacting the tip surface by the moving mechanism comes into contact with the object. The coating unit is moved close to the object until the coating unit is moved substantially parallel to the object in the contact state, and the paint impregnating cloth is slid with the object and the object is moved. Apply paint to objects A separation step of moving the coating unit away from the object until the cloth for impregnating the paint contacted with the object by the moving mechanism is separated from the object after the application step; And a paint impregnating cloth moving step of moving the paint impregnating cloth in the stretching direction by a supporting / moving means.

  According to this configuration, the paint that has flowed out from the paint supply port in the liquid feeding process is impregnated and held by the paint impregnation cloth that comes into contact with the tip surface of the protrusion. In the coating process, the tip surface of the projecting portion is moved downward to bring the coating material impregnated cloth into contact with the object, and the paint flowing out from the coating material supply port is moved in parallel with the object while in contact. Can be quickly applied to an object. In this way, since the paint can be applied to the object immediately after flowing out from the paint supply port, the reactivity decreases with time even for a paint whose reactivity with the object decreases with time. It can apply without.

  Further, in the paint impregnation cloth moving step after the application process, for example, the part of the paint impregnation cloth used for application is moved by the support / moving means so that the unused part is brought into contact with the tip surface of the protrusion. By impregnating with a new paint, the paint can be applied to the object in a state where the reactivity is not always lowered over time. That is, as in the case of using an endless belt or a coating pad, it is possible to prevent the paint flowing out from the coating material supply port from staying on the endless belt or the coating pad for a long time.

  In the coating method using the coating apparatus according to the present invention, since the coating is performed on the object by the coating impregnated cloth impregnated with the coating, there is no waste of the amount of coating used due to the scattering of the coating and the like. By the above-described substantially parallel movement, the object can be spread thinly and widely, and the amount of paint used can be saved.

  According to the present invention, since the paint that has flowed out from the paint supply port can be quickly applied to the object, the reactivity decreases with time even for a paint whose reactivity with the object decreases with time. It can apply | coat, without making it. Therefore, a coating film firmly bonded to the object can be applied.

  Furthermore, since the paint impregnated and held in the paint impregnation cloth is spread thinly and widely on the object, the amount of paint used can be saved. Therefore, the coating material cost concerning formation of the coating film to a target object can be reduced.

It is a front view of the coating device 10 which concerns on embodiment of this invention. Similarly, it is a side view of the coating device 10. Similarly, it is an enlarged perspective view for explaining the coating unit 20. Similarly, it is the figure which looked at FIG. 3 from the arrow 100 direction. Similarly, it is a front view showing a contact state between the paint impregnating cloth 20 and the substrate 18.

  Next, embodiments of the present invention will be described in detail with reference to the drawings. A coating apparatus of the present invention used for coating a surface of an object and a coating method using the apparatus will be described with reference to FIGS. FIG. 1 is a front view of a coating apparatus 10 according to an embodiment of the present invention, and FIG. 2 is a side view of the coating apparatus 10 according to the present embodiment.

  As shown in the figure, on the flat base 12, there is provided a mounting base 13 that is a holding part that stably holds the plate-like base material 18 that is an object to which the paint is applied and is substantially parallel to the base 12. In addition, two vertical columns 14 whose base ends are fixed to the pedestal 12 are erected. A beam member 16 having both ends fixed to the vicinity of the tip of the vertical column 14 is bridged substantially parallel to the base 12. An application unit 20, which is an assembly of mechanisms for applying paint to the base material 18, is applied to the beam member 16 at a position above the base material 18 held on the mounting table 13 via a slider block 22 described later. It is attached. The application unit 20 moves toward and away from the base material 18 by a moving mechanism including the slider block 22 and moves substantially parallel to the base material 18. Each configuration of the coating apparatus 10 having the above schematic configuration will be described in detail below.

  First, the coating unit 20 will be described. FIG. 3 is an enlarged perspective view for explaining the coating unit 20, and FIG. 4 is a view of the drawing seen from the direction of the arrow 100. As shown in the drawing, the end of a rectangular block 26 is fixedly attached to the plate-shaped coating unit main body 24. A substantially rectangular protruding portion 28 protruding downward from the block 26 is connected by two rod-shaped connecting rods 30 at a predetermined interval, and the height position of the protruding portion 28 depends on this interval as required. Adjusted. The block 26 and the projecting portion 28 connected by the connecting rod 30 constitute a paint supply portion 29.

  The protruding portion 28 is a hollow structure having an upper surface 28a facing the block 26 and a tip surface 28b facing the base member 18 and having four side surfaces opened. The protrusion 28 is an elongated rectangular body that extends in a direction perpendicular to the surface 24 a of the coating unit main body 24. Therefore, the front end surface 28b also extends in the extending direction of the rectangular body. The distal end surface 28b is provided with a concave groove 28c having a rectangular cross section extending along the extending direction of the distal end surface 28b. In the concave groove 28c, five paint supply ports 32 are opened at equal intervals from the back direction to the front direction in FIG.

  One end of a liquid supply tube 34 for supplying the paint to the paint supply port 32 is connected to the paint supply port 32, and the other end of the liquid supply tube 34 is placed on the control table 36 on the base 12. The peristaltic pumps 38 are connected respectively. The liquid feeding tube 34 and the peristaltic pump 38 constitute a liquid feeding means.

  Further, a rectangular fixed block 40 is attached to the coating unit main body 24 at a position facing the side surface 26a of the block 26 so as to be movable toward and away from the side surface 26a. ing. As a result, a coating-impregnating cloth 44, which will be described later, can be sandwiched and fixed between the fixing block 40 and the block 26. These fixed block 40 and block 26 constitute clamping means. Furthermore, the coating unit 20 has a support / moving means having the following configuration.

  As shown in FIG. 1, the support / moving means includes a plate-like body 42 that is superposed on the coating unit main body 24 at a height position higher than the block 26 and the fixed block 40, and a surface 42 a of the plate-like body 42. Each end is constituted by two rollers pivotally supported at one end. A long belt-like paint-impregnating cloth 44 is wound around and supported by these two rollers. Of the two rollers, the roller on the left side is a feed roller 46 on the side for feeding the paint impregnating cloth 44, and the roller on the right side is a winding roller 48 on the side for winding the paint impregnated cloth 44. The stretched cloth 44 for impregnating the paint is guided by guide rollers 50 and 52 each having one end pivotally supported on the coating unit main body 24 and is in contact with the front end surface 28b of the protruding portion 28. In addition, the extending | stretching direction (the arrow 200 direction in FIG. 1) of the extending | stretching direction of the front end surface 28b mentioned above and the coating material impregnation cloth 44 is orthogonal.

  The entraining roller 48 is rotated in the direction of the arrow 300 by a drive motor (not shown), thereby acting as a moving means for moving the paint impregnating cloth 44 in the entraining direction that is the stretching direction with respect to the paint supply port 32. The feed roller 46 rotates in accordance with the rotation of the paint impregnation cloth 44 that is wound up by the rotation of the entraining roller 48.

  Next, the moving mechanism will be described. The moving mechanism includes the beam member 16, the slider block 22, and the coating unit main body 24 described above. The beam member 16 is formed in a substantially letter-shaped cross section having a concave groove 16a on the upper surface and the lower surface thereof. The slider block 22 is formed as a substantially rectangular body, and a concave groove 22a for loosely fitting the application unit 20 side portion of the beam member 16 is provided on the surface on the vertical column 14 side. The rollers 22b provided in the vertical direction in the concave groove 22a sandwich the concave groove 16a of the beam member 16, and the roller 22b is rotated by a drive motor (not shown) so that the coating unit main body 24 is moved together with the coating unit 20. It is moved in the direction of the arrow 200, that is, substantially parallel to the mounting table 13 and in the direction in which the paint impregnating cloth 44 is stretched. Thereby, the coating unit 20 moves in a substantially parallel direction with respect to the base material 18 stably held on the mounting table 13.

  Further, the coating unit main body 24 is thinned by notching both end sides in the left-right direction (the direction of the arrow 200 in FIG. 1) from the surface on the vertical column 14 side. Therefore, the coating unit main body 24 has a substantially T-shaped cross section. Shaped plate material. That is, the coating unit main body 24 has a convex portion 24 b that protrudes toward the vertical column 14 over substantially the entire length in the vertical direction. The slider block 22 has a concave groove 22c cut out in the vertical direction on the surface on the side of the coating unit 20, and the convex portion 24b is replaced with the convex portion 24b by rollers 22d respectively provided in the horizontal direction in the concave groove 22c. While being sandwiched from the side surface, the roller 22d is rotated by a drive motor (not shown) to move the coating unit main body 24 together with the coating unit 20 in the direction of the arrow 300, that is, in the vertical direction with respect to the mounting table 13. Thereby, the coating unit 20 moves in the contact / separation direction with respect to the base material 18 on the mounting table 13.

  Further, the holding unit moving mechanism will be described. The mounting table 13 serving as a holding unit is mounted on a guide rail 54 provided on the flat base 12. The guide rail 54 has a concave groove 54a on the upper side, and rollers 13b provided on the bottom and side surfaces of the leg portion 13a projecting downward at the lower portion of the mounting table 13 are rotated by a drive motor (not shown). It travels on the concave groove 54a and can move in the direction of the arrow 400, that is, in the direction orthogonal to the stretching direction of the paint impregnating cloth 44.

  A method of applying a paint to the base material 18 using the coating apparatus 10 having the above configuration will be described. In this Embodiment, the base material 18 which is a target object is a glass plate. The size of the base material is, for example, a square shape in which the length of one side is slightly shorter than the width l of the paint impregnating cloth 44. A total of nine substrates 18 are placed on the mounting table 13 in three rows and three columns. The mounted substrate 18 is stably held by being sucked and fixed with air from a suction port (not shown) arranged on the surface of the mounting table 13 so as to be below each glass plate (object holding step). .

  Next, the coating impregnation cloth 44 is supported by the supporting / moving means. Here, the paint impregnating cloth 44 is, for example, a cloth knitted from a yarn having water supply and oil supply properties, or a non-woven fabric made from fibers having water supply and oil supply properties. The coating material impregnation cloth 44 is supported by fixing both ends in the longitudinal direction to the feeding roller 46 and the entraining roller 48, respectively. Then, the side of the feed roller 46 is wound in the direction of the arrow 300, and is supported by the feed roller 46 and the take-up roller 48 so as to stretch the paint impregnating cloth 44 between the two rollers. In this state, the coating material impregnating cloth 44 is brought into contact with the guide roller 50 from the delivery roller 46 side, extends downward therefrom, passes between the fixed block 40 and the block 26, and contacts the front end surface 28 b of the protruding portion 28. In contact therewith, it extends upward again from the front end surface 28b, is in circumferential contact with the guide roller 52, and is wound around the winding roller 42 (supporting step).

  In addition, in the direction orthogonal to the stretching direction of the paint impregnating cloth 44, the tip end surface 28b of the projecting portion 28 extends so as to have a width slightly exceeding the width l of the paint impregnating cloth 44.

  After the supporting process, the fixing block 40 is moved in the direction of the side surface 26a of the block 26 by the clamping means, and the paint impregnating cloth 44 is clamped and fixed (paint impregnating cloth clamping process).

  Thereafter, the coating material is caused to flow out from the coating material supply port 32 by the liquid feeding means, and the coating material is impregnated and held on the coating material impregnating cloth 44 in contact with the front end surface 28b of the protruding portion 28. This liquid feeding is performed by adjusting the supply speed of the paint by the peristaltic pump 38 and sending the paint through the liquid feed tube 34 to the paint supply port 32. The liquid feeding speed of the peristaltic pump 38 is, for example, 0.1 to 0.05 ml / min when there are five paint supply ports 32. The liquid feeding speed and the liquid feeding time are not limited to the above-mentioned speeds as long as they are sufficient for the paint impregnating cloth 44 to impregnate and hold the paint over the entire width l. Process).

  At this time, the paint flows out from the paint supply ports 32 provided at five equal intervals in the concave groove 28c of the front end face 28b, so that the inside of the concave groove 28c formed in the front end face 28b of the projecting portion 28 passes through the groove 28c of the front end face 28b. The paint is rapidly developed over the entire length in the extending direction, and the developed paint is impregnated quickly over the entire width 1 of the width of the paint impregnation cloth 44. As a result, the coating material flowing out from the coating material supply port 32 is rapidly applied, and the coating material impregnated with the coating material impregnation cloth 44 uses the full width l of the coating material impregnation cloth 44 in the following coating process. The effect of being spread widely on the substrate 18 is obtained.

  Next, the coating process will be described. As shown in FIG. 1, the coating unit 20 is moved close to the base material 18 by the moving mechanism until the coating material impregnating cloth 44 and the base material 18 that are in contact with the distal end surface 28 b at a separated position come into contact with each other. Then, as shown in FIG. 5, in the contact state between the paint-impregnated cloth 44 and the base material 18, the application unit 20 is now moved in a direction substantially parallel to the base material 18 and the tension of the paint-impregnated cloth 44 by the moving mechanism. Move in the rack direction. Accordingly, as described above, the paint impregnating cloth 44 impregnated and retained with the paint slides with the base material 18 using the full width l, and the impregnated paint can be applied to the base material 18 (application process). ).

  In the present embodiment, the coating unit 20 is moved in the direction substantially parallel to the base material 18 and the direction in which the coating material impregnation cloth 44 is stretched over the length of one side of the mounting table 13, so The material 18 can be applied in three rows. Furthermore, since the coating impregnation cloth 44 is clamped and fixed to the coating unit 20 by the clamping means during the sliding, the coating unit 20 is moved relative to the substrate 18 by the moving mechanism in the direction of the arrow 200 and in FIG. Even when the paint impregnation cloth 44 is moved leftward, the paint impregnation cloth 44 does not shift in the stretching direction (in the direction of the arrow 200) as it slides, and the paint can be applied accurately. That is, in the direction of the arrow 200, the coating unit 20 can be moved in either the left or right direction in FIG.

  In addition, since the coating is applied by sliding the coating impregnating cloth 44 with respect to the base material 18, an effect of simultaneously wiping off dust and dirt adhering to the base material 18 can be expected.

  After the coating process is completed, the coating unit 20 is moved away from the base material 18 until the paint-impregnated cloth 50 in contact with the base material 18 is separated from the base material 18 by the moving mechanism (separation moving process).

  Thereafter, the fixing block 40 is separated from the side surface 26a of the block 26 by the clamping means, and the fixed state of the paint impregnation cloth 44 is released (paint impregnation cloth fixing release step).

  Thereafter, the entraining roller 48 is rotated in the direction of the arrow 300 by the supporting / moving means, and the paint impregnating cloth 44 is moved in the stretching direction and toward the entraining roller 48, so that the paint impregnating cloth 44 is moved from the front end surface 28b. The part used for coating is moved, the unused part of the paint-impregnated cloth 44 is brought into contact with the tip surface 28b (paint-impregnated cloth moving step), and the paint-impregnated cloth 44 is sandwiched again by the clamping means. And fix (paint re-impregnation cloth re-pinching process). As a result, preparation on the application unit 20 side for application of the next three rows of base materials 18 is made.

  Through the above steps, the application of the paint to the three substrates 18 in one column among the substrates 18 arranged in 3 columns × 3 rows is completed.

  When the paint is applied to the remaining two rows of base materials, the mounting table 13 is further guided to the guide rail 54 in the direction perpendicular to the stretching direction of the paint impregnating cloth 44 and in the direction of the vertical column 14 by the holding unit moving mechanism. Move to the next adjacent row. This movement is performed by rotating the roller 30a by a drive motor (not shown) (the holding part moving step).

  After the holding part moving step, the coating can be applied to the three substrates 18 in the adjacent row by repeating the steps from the liquid feeding step to the coating impregnation cloth re-holding step again. Thereafter, the mounting table 13 is further moved to the next row by the holding portion moving step, and the steps from the liquid feeding step to the coating material impregnation cloth moving step are repeated, so that the coating material is applied to the three substrates 28 in the last row. Can be applied.

  The processes from the above liquid feeding process to the paint impregnation cloth re-holding process are controlled by the control device 56 installed next to the peristaltic pump 38 on the control table 36. The control device 56 has a built-in CPU, and in response to a command from the CPU, the support / moving means, the clamping means, the liquid feeding means, the moving mechanism, and the holding part moving mechanism are independently operated. A coating method using the coating apparatus 10 is performed.

  Therefore, according to the coating apparatus 10 and the coating method using the coating apparatus 10 according to the present invention, the paint flowing out from the paint supply port 32 is impregnated and held in the paint impregnation cloth 44 that comes into contact with the front end surface 28 b of the protrusion 28. Then, the tip end surface 28b of the projecting portion 28 is moved downward to bring the paint impregnating cloth 44 into contact with the base material 18, and in the contact direction, substantially parallel to the base material 18 and the stretching direction of the paint impregnating cloth 44. The coating material can be quickly applied to the base material 18 from the coating material 44 for impregnating the coating material. In this way, since the paint can be quickly applied to the substrate 18 after flowing out from the paint supply port 32, it reacts with moisture in the air such as a silane coupling agent-containing paint, and the glass plate ( Even a paint with reduced reactivity with the substrate 18) can be applied without reducing the reactivity.

  Further, after coating, the portion used for coating of the coating-impregnating cloth 44 is moved by the support / moving means so that the unused portion is brought into contact with the tip surface 28b of the protruding portion 28 and impregnated with new coating material. Thus, the paint can be applied to the substrate 18 in a state where the reactivity does not always decrease with time. That is, it is possible to prevent the paint from stagnating on the endless belt or the coating pad for a long time as in the case of using the endless belt or the coating pad.

  Further, since the coating material is impregnated and held on the base material 18 by the coating material impregnating cloth 44, the amount of coating material used is not wasted due to scattering of the coating material, and the coating material is applied in the above-mentioned substantially parallel direction and the coating material impregnating fabric. By moving 44 in the stretching direction, it is possible to spread thinly and widely on the substrate 18, and the amount of paint used can be saved.

  In addition, in the present embodiment, since the moving mechanism is configured with the entire coating unit 20 as one moving body, the apparatus configuration is compact. Therefore, the process until the coating material is applied to each substrate 18 is completed by the movement of only the coating unit 20. Thereby, since the holding | maintenance part side can be made into a simple structure, the freedom degree of the design by the side of a holding | maintenance part improves. Therefore, for example, by using a belt conveyor type as the holding unit instead of the mounting table 13, it is possible to provide a device with improved coating efficiency.

  In addition, this invention is not limited to the said embodiment, A various change is possible in the range which does not deviate from the meaning of invention. For example, in the present embodiment, the movement mechanism is provided on the coating unit 20 side in order to reduce the size of the apparatus configuration. However, the movement mechanism may be provided on the base material 18 side that is an object.

DESCRIPTION OF SYMBOLS 10 Application | coating apparatus 13 Holding part 16 Beam member (movement mechanism)
20 Coating unit 22 Slider block (moving mechanism)
24 Coating unit body (moving mechanism)
28 Protruding part 29 Paint supply part 32 Paint supply port 34 Liquid supply tube (liquid supply means)
38 Peristaltic pump (liquid feeding means)
42 Plate (support / moving means)
46 Feeding roller (support / moving means)
48 Entrainment roller (support / moving means)

Claims (5)

A paint application device,
A holding unit for stably holding an object to which the paint is applied;
A paint supply unit that is disposed at an upper position of the object held by the holding unit and has a projecting part projecting downward, a paint supply port provided on a front end surface of the projecting part, and a long belt-like shape A coating unit having a supporting and moving means capable of stretching and supporting the paint impregnating cloth in a state where the cloth is impregnated with the tip surface of the protruding portion, and movable in the stretching direction;
Liquid feeding means for sending paint to the paint supply port of the coating unit;
A moving mechanism for performing a relative contact and separation movement and a substantially parallel movement between the coating unit and the object;
A coating apparatus comprising:   The front end surface of the projecting portion extends a predetermined length in a direction perpendicular to the stretching direction of the abutted paint-impregnated cloth, and extends along the extension direction and passes through the paint supply port. The coating apparatus according to claim 1, further comprising a groove.   The coating apparatus according to claim 2, wherein a plurality of the coating material supply ports are provided at predetermined intervals in the extending direction of the tip surface.   The coating apparatus according to claim 1, wherein the relative movement by the moving mechanism is performed by moving the coating unit. A coating method using the coating apparatus according to any one of claims 1 to 4,
An object holding step for holding the object in the holding unit;
A support step of supporting the paint impregnating cloth on the support / moving means so as to stretch in a state where the cloth for impregnating the paint is in contact with the tip end surface of the protruding portion;
A liquid feeding step of sending the paint to the paint supply port of the coating unit by the liquid feeding means, and impregnating and holding the paint flowing out from the paint supply port in the paint impregnation cloth;
The coating unit is moved close to the object until the coating-impregnated cloth in contact with the tip surface contacts the object by the moving mechanism, and the application unit is moved relative to the object in the contact state. Applying the paint to the object by sliding the paint-impregnated cloth with the object by substantially parallel movement,
A separation moving step of moving the coating unit away from the object until the paint impregnated cloth that has come into contact with the object by the moving mechanism is separated from the object after the applying step;
A paint impregnation cloth moving step of moving the paint impregnation cloth in the stretching direction by the support / moving means;
A coating method characterized by comprising:

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