JP2007144325A - Nozzle for applying double coating materials for forming double coat layers, nozzle for applying multiple coating materials for forming multiple coat layer, method for applying double coating materials for forming double coat layer, and method for applying multiple coating materials for forming multiple coat layer - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a nozzle for applying double coating materials for forming double coat layers capable of stably forming an upper coat layer and a lower coat layer each having a constant width, a constant thickness, and good adhesion without entrapping air between the upper and the lower coat layers. <P>SOLUTION: The nozzle 1 for applying double coating materials for forming double coat layers is equipped with a slit 3A for extruding a lower coating material having a prescribed opening width and thickness formed and disposed in the vicinity of the lower end of the nozzle 1 by inserting a spacer 3B for the lower coating material between the one side-face of a nozzle main body 2 and a cover 3 that covers the lower coating material and a slit 4A for extruding an upper coating material having a prescribed opening width and thickness formed and disposed in the vicinity of the lower end of the nozzle 1 by inserting a spacer 4B for the upper coating material between the other side-face of a nozzle main body 2 and a cover 4 that covers the upper coating material. A lower layer coating material Pd is extruded from the slit 3A and an upper coating material Pu is extruded from the slit 4A in a mutual adhesion without entrapping air between them. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention is effective for a two-layer coating material such as a two-layer steel plate reinforcing material excellent in reinforcing property, vibration damping property and distortion resistance composed of a lower layer portion having flexibility and an upper layer portion having rigidity. Nozzle for applying a two-layer material for applying to a coating material, a nozzle for applying a multilayer material for efficiently applying a multilayer coating material in which an intermediate layer is further added to the two-layer type coating material, and a method for applying a two-layer material And a method for applying a multilayer material.

  2. Description of the Related Art In recent years, body panels of vehicles such as passenger cars tend to be thinner for the purpose of reducing the weight of the vehicle and improving personal protection for improving fuel efficiency. As the thickness of the body panel becomes thinner, the rigidity and dent resistance of the body panel is increased. Decreases. On the other hand, conventionally, a sheet made of a thermosetting epoxy resin called a panel reinforcing material is attached to the back side of the vehicle body panel, and the sheet is reinforced by heating and curing in a drying furnace. However, such a sheet-like reinforcing material is manually constructed, and has a problem of hindering the reduction of the process time because it becomes an obstacle to automation. Therefore, as shown in Patent Document 1, a paint-type steel plate reinforcement that can be automated by a robot has been developed.

  In the invention shown in Patent Document 1, it is composed of two layers of coating material, the intermediate layer is a one-component thermosetting epoxy-urethane paint, the constraining layer is a one-component thermosetting epoxy paint, and one-component heat The curable epoxy / urethane paint uses a coated steel plate reinforcement that is a paint that foams when heated, making it possible to apply the required amount of reinforcement to the required site and using a painting robot or automatic coating machine. It is possible to prevent the steel plate from being distorted due to the shrinkage of the reinforcing material at the time of heat curing, and a further steel plate reinforcing effect is obtained.

  As an application nozzle for automatically applying such an application material, for example, there is an application nozzle according to the inventor's invention disclosed in Patent Document 2. In this coating nozzle, the paint accumulated in the internal space is discharged from a fan-shaped nozzle passage having slit-like intervals, and is discharged in a film shape while widening the width. Thereby, a film-like coating film having a wide and constant thickness can be easily formed.

  A method of applying a two-layer coating material as described in Patent Document 1 using such a coating nozzle will be described with reference to FIGS. 16 and 17. FIGS. 16A to 16G are explanatory views showing a coating method for a two-layer coating material according to Conventional Example 1. FIG. 17A to 17F are explanatory views showing a coating method for a two-layer coating material according to Conventional Example 2. FIG.

  As shown in FIG. 16 (a), in the coating method according to Conventional Example 1, the application nozzle 50A for extruding the lower layer material Pd and the application nozzle 50B for extruding the upper layer material Pu are moved to the base material surface G to be applied. The coating nozzles 50A and 50B are brought close to each other at right angles, and the lower layer material Pd is first pushed out from the slit at the lower end of the coating nozzle 50A, as shown in FIGS. 16B and 16C. When 50A and 50B are moved and applied to a predetermined range, as shown in FIG. 16D, the extrusion of the lower layer material Pd from the application nozzle 50A is stopped, and the thickness of the upper layer material Pu to be applied next is stopped. Only the application nozzles 50A and 50B are raised.

  Then, as shown in FIG. 16 (e), the application nozzles 50A and 50B are moved to a predetermined position, and the upper layer material Pu is pushed out from the slit at the lower end of the application nozzle 50B. As shown, the application nozzles 50A and 50B are moved to apply to a predetermined range. However, in the coating method according to Conventional Example 1, it is necessary to reciprocate the coating nozzles 50A and 50B over a predetermined coating range, and there is a problem that it takes time to apply the two-layer coating material. .

  Therefore, as shown in FIG. 17A, in the coating method according to the second conventional example, the coating nozzle 52A that pushes out the lower layer material Pd and the coating nozzle 52B that pushes out the upper layer material Pu are stepped to the slit height at the lower end. First, as shown in FIG. 17B, the lower layer material Pd is moved while being pushed out from the application nozzle 52A, and the subsequent application nozzle 52B is made higher than the application nozzle 50A by the thickness of the upper layer material Pu. Then, as shown in FIGS. 17C and 17D, the upper layer material Pu is moved while being pushed out from the coating nozzle 52B.

Then, after coating to a predetermined range, the extrusion of the lower layer material Pd from the coating nozzle 52A is stopped first, and then the extrusion of the upper layer material Pu from the coating nozzle 52B is stopped as shown in FIG. In this way, as shown in FIG. 17 (f), the two-layer coating material can be applied to the substrate surface G in about half the time compared to the conventional example 1.
JP 2001-162222 A JP-A-11-179243

  However, when the coating nozzle according to Patent Document 2 is used, the width of the upper layer material Pu and the lower layer material Pd to be extruded (the length in the direction perpendicular to the paper surface in FIGS. 16 and 17) varies depending on the pressure. Since it is difficult to apply stably and with a certain width, air bubbles are generated by entraining bubbles and air is present between the substrate surface G and the substrate surface G. The adhesiveness is poor, and there is a problem with rust prevention. Furthermore, in the coating method of the above-described Conventional Example 2, since air is caught between the lower layer material Pd and the upper layer material Pu, there is a problem that blistering occurs during heat baking.

  Therefore, the present invention can stably apply the upper layer material and the lower layer material with a constant width and thickness and good adhesion, and does not involve air between the upper layer material and the lower layer material, and is heated and baked. The nozzle for applying the two-layer material that does not swell at the time of application, and the upper layer material, the intermediate layer material, and the lower layer material can be applied stably with a constant width and thickness and good adhesion. An object of the present invention is to provide a multilayer material application nozzle that does not entrain air between materials and does not swell during heat-baking, as well as a two-layer material application method and a multilayer material application method. It is.

  The nozzle for applying a two-layer material according to the invention of claim 1 efficiently applies a two-layer coating material composed of a lower layer material applied to the substrate surface and an upper layer material applied on the lower layer material. A two-layer material application nozzle for injecting the lower layer material into the lower layer material injection port, the upper layer material injection port into which the upper layer material is injected, and the lower layer material injection port A lower layer material reservoir having a width; an upper layer material reservoir having a predetermined width communicating with the upper layer material inlet; and a lower layer material communicating with the lower layer material reservoir, wherein the lower layer material has a predetermined thickness and the lower layer material reservoir. Lower layer material slit extruded with a predetermined width or a narrower width than the predetermined width, and communicated with the upper layer material reservoir, the upper layer material has a predetermined thickness and a predetermined width of the upper layer material reservoir or more than the predetermined width An upper layer material slit extruded with a narrow width, the lower layer material slit The tip and the tip of the upper layer material slit are provided close to the nozzle port of the two-layer material application nozzle or the position inside the nozzle port, and the lower layer material and the upper layer extruded from the lower layer material slit It is extruded from the nozzle port in a state in which the upper layer material extruded from the material slit is in close contact.

  Here, the “predetermined width” for the lower layer material reservoir and the “predetermined width” for the upper layer material reservoir do not necessarily mean the same width. Similarly, the “predetermined thickness” for the lower layer material slit and the “predetermined thickness” for the upper layer material slit do not necessarily mean the same thickness.

  The two-layer material application nozzle according to the invention of claim 2 is the structure of claim 1, wherein the lower layer material injection port and the upper layer material injection port are on the upper surface, and the lower layer material reservoir is on one side surface. A nozzle body provided with a reservoir on the other side surface, a lower layer material spacer having a thickness corresponding to a predetermined thickness of the lower layer material slit, and a thickness corresponding to a predetermined thickness of the upper layer material slit An upper layer material spacer; a lower layer material cover; and an upper layer material cover, wherein the lower layer material cover is detachably attached to one side surface of the nozzle body with the lower layer material spacer interposed therebetween, and the other side surface of the nozzle body The upper layer material cover is detachably attached with the upper layer material spacer interposed therebetween.

  A nozzle for applying a two-layer material according to a third aspect of the present invention is the structure of the first or second aspect, wherein a width less than the width of the lower-layer material reservoir is provided between the lower-layer material inlet and the lower-layer material reservoir. The lower layer material groove portion is provided, and the lower layer material groove portion and the lower layer material reservoir communicate with each other through a plurality of passages, and the upper layer material reservoir is provided between the upper layer material inlet and the upper layer material reservoir. An upper layer material groove portion having a width equal to or less than the width is provided, and the upper layer material groove portion and the upper layer material reservoir communicate with each other through a plurality of passages.

  The method for applying a two-layer material according to the invention of claim 4 efficiently applies a two-layer coating material comprising a lower layer material applied to the substrate surface and an upper layer material applied on the lower material. A method of applying a two-layer material for the step of pressing the lower layer material through a slit having an opening of a predetermined width and a predetermined thickness by applying pressure, and the upper layer material at an extrusion port to the outside or the A process of pushing through a slit having an opening with a predetermined width and a predetermined thickness by applying pressure while adhering to the upper surface of the lower layer material in front of the extrusion port to the outside, and the adhering lower layer material and upper layer material to the outside And the step of bringing the lower surface of the lower layer material into close contact with the surface of the base material while extruding from the extrusion port.

  Here, “predetermined width” and “predetermined thickness” for the lower layer material and “predetermined width” and “predetermined thickness” for the upper layer material necessarily mean the same width or the same thickness. It is not a thing.

  The multilayer material application nozzle according to the invention of claim 5 is applied on the lower layer material applied on the surface of the base material, one or more intermediate layer materials applied on the lower layer material, and the intermediate layer material. A multilayer material application nozzle for efficiently applying three or more layers of a multi-layer type coating material comprising an upper layer material, wherein the lower layer material injection port into which the lower layer material is injected, and the 1 or 2 or more One or two or more intermediate layer material injection ports into which the intermediate layer material is injected, an upper layer material injection port into which the upper layer material is injected, and a lower layer material having a predetermined width communicating with the lower layer material injection port A reservoir, one or more intermediate layer material reservoirs having a predetermined width communicating with the one or more intermediate layer material inlets, and a predetermined width communicating with the upper layer material inlet. The upper layer material reservoir and the lower layer material reservoir communicated with each other, and the lower layer material has a predetermined width. Is communicated with the lower layer material slit extruded with a width narrower than the predetermined width and with a predetermined thickness, and the one or more intermediate layer material reservoirs, respectively. Or one or more intermediate layer material slits extruded at a predetermined width and a width narrower than the predetermined width, and the upper layer material reservoir, and the upper layer material has the predetermined width or the predetermined width. A lower layer material slit and an upper layer material slit extruded at a predetermined thickness, wherein the lower layer material slit tip, the one or more intermediate layer material slit tips, and the upper layer material slit tip are the multilayer Pressed from the lower layer material and the one or more intermediate layer material slits, which are provided in the vicinity of the nozzle port of the material application nozzle or the position inside the nozzle port and pushed out from the lower layer material slit In which the upper layer material extruded from the one or more intermediate layers material and the upper layer material slit is is extruded from the nozzle port in close contact.

  Here, the “predetermined width” for the lower layer material reservoir, the “predetermined width” for the intermediate layer material reservoir, and the “predetermined width” for the upper layer material reservoir do not necessarily mean the same width. Similarly, the “predetermined thickness” for the lower layer material slit, the “predetermined thickness” for the intermediate layer material slit, and the “predetermined thickness” for the upper layer material slit necessarily mean the same thickness. It is not a thing.

  The multilayer material application nozzle according to the invention of claim 6 is divided into a number obtained by adding 1 to the number of layers of the intermediate layer material in a direction parallel to the intermediate material slit in the configuration of claim 5, The lower layer material inlet, the one or more intermediate layer material inlets and the upper layer material inlet are on the upper surface, the lower material reservoir is on one side, and the upper material reservoir is on the other side. Nozzle body provided on one or two or more divided surfaces, the lower layer material spacer having a thickness corresponding to a predetermined thickness of the lower layer material slit, and the 1 or 2 One or more intermediate layer material spacers having a thickness corresponding to a predetermined thickness of two or more intermediate layer material slits, and an upper layer material spacer having a thickness corresponding to a predetermined thickness of the upper layer material slits; Lower layer cover and upper layer cover The nozzle body is detachably assembled with one or more intermediate layer spacers sandwiched between one or more divided surfaces of the divided nozzle body, and the nozzle body is attached to one side surface of the nozzle body. The lower layer material cover is detachably attached with a lower layer material spacer in between, and the upper layer material cover is detachably attached to the other side surface of the nozzle body with the upper layer material spacer in between.

  A multilayer material application nozzle according to a seventh aspect of the present invention is the structure of the fifth or sixth aspect, wherein the lower layer material inlet and the lower layer material reservoir have a width equal to or less than the width of the lower material reservoir. A lower layer material groove is provided, and the lower layer material groove and the lower layer material reservoir communicate with each other through a plurality of passages, and the one or more intermediate layer material inlets and the one or more intermediates Intermediate layer material grooves each having a width equal to or less than the width of the intermediate layer material reservoir are provided between the layer material reservoirs, and the intermediate layer material groove portion and the intermediate layer material reservoir communicate with each other through a plurality of passages. An upper layer material groove having a width equal to or smaller than the width of the upper layer material reservoir is provided between the upper layer material inlet and the upper layer material reservoir, and between the upper layer material groove and the upper layer material reservoir. Is in communication with a plurality of passages.

  A nozzle for applying a two-layer material or a nozzle for applying a multilayer material according to the invention of claim 8 is the application of the surface of the base material according to any one of claims 1 to 3 or claim 5 to claim 7. A tip portion including the tip of the nozzle body is curved in the longitudinal direction (width direction) along a curved shape perpendicular to the direction.

  The method for applying a multilayer material according to the invention of claim 9 is applied to the lower layer material applied to the surface of the substrate, one or more intermediate layer materials applied onto the lower layer material, and the intermediate layer material. A multilayer material coating method for efficiently applying a multilayer coating material having three or more layers composed of an upper layer material to be applied, wherein an opening having a predetermined width and a predetermined thickness by applying pressure to the lower layer material A step of extruding through a slit having a predetermined width by applying pressure while bringing the one or two or more intermediate layer materials into close contact with the upper surface of the lower layer material at the outside extrusion port or before the outside extrusion port And extruding through a slit having an opening having a predetermined thickness, and bringing the upper layer material into close contact with the upper surface of the one or more intermediate layer materials at the outside extrusion port or before the extrusion port to the outside. While applying pressure, A step of extruding through a slit having an opening of a predetermined thickness; and the lower surface of the lower layer material while extruding the adhered lower layer material, one or more intermediate layer materials and the upper layer material from the extrusion port to the outside. And a step of closely adhering to the surface.

  Here, “predetermined width” and “predetermined thickness” for the lower layer material, “predetermined width” and “predetermined thickness” for one or more intermediate layer materials, and “ “Predetermined width” and “predetermined thickness” do not necessarily mean the same width or the same thickness.

  The nozzle for applying a two-layer material according to the invention of claim 1 includes a lower layer material injection port into which a lower layer material is injected, an upper layer material injection port into which an upper layer material is injected, and a predetermined lower layer material injection port. A lower layer material reservoir having a width, an upper layer material reservoir having a predetermined width communicating with the upper layer material inlet, and a lower layer material communicating with the lower material reservoir and having a predetermined thickness and a predetermined width of the lower material reservoir. Lower layer material slit extruded with a width narrower than the predetermined width, and upper layer material communicating with the upper layer material reservoir and the upper layer material extruded with a predetermined thickness and a predetermined width of the upper layer material reservoir or a width narrower than the predetermined width The tip of the lower layer material slit and the top of the upper layer material slit are provided close to the nozzle port of the two-layer material application nozzle or the position inside the nozzle port and pushed out from the lower layer material slit. Press from the lower layer material and the upper layer material slit. Extruded from the nozzle opening in a state in which the upper member issued are in close contact.

  By having such a structure, in the two-layer material coating nozzle according to the present invention, the lower layer material injected into the lower layer material injection port is once expanded to a predetermined width in the lower layer material reservoir, and then the lower layer material reservoir and Since it is extruded from the lower layer material slit having the same width or less, even if the injection pressure at the lower layer material injection port fluctuates, it is always stably applied with a predetermined width and a predetermined thickness. The same applies to the upper layer material. And the tip of the lower layer material slit and the tip of the upper layer material slit are provided close to the position inside the nozzle port or the nozzle port, and the lower layer material and the upper layer material are pushed out from the nozzle port in a close contact state. Therefore, air is not caught between the lower layer material and the upper layer material. Therefore, even if there is a heat baking step after the coating step, no swelling occurs.

  In this way, the upper layer material and the lower layer material can be applied stably and with a constant width and thickness with good adhesion, and air is not entrapped between the upper layer material and the lower layer material. In this case, the nozzle for applying a two-layer material does not cause swelling.

  The nozzle for two-layer material application according to the invention of claim 2 is a nozzle body in which a lower layer material injection port and an upper layer material injection port are provided on the upper surface, a lower material reservoir is provided on one side, and an upper material reservoir is provided on the other side. A lower layer material spacer having a thickness corresponding to a predetermined thickness of the lower layer material slit, an upper layer material spacer having a thickness corresponding to a predetermined thickness of the upper layer material slit, a lower layer material cover and an upper layer material cover, The lower layer material cover is detachably attached to one side surface of the nozzle body with the lower layer material spacer in between, and the upper layer material cover is detachably attached to the other side surface of the nozzle body with the upper layer material spacer in between. Become.

  Here, as described above, since the tip of the lower layer material slit and the tip of the upper layer material slit are provided close to each other, the nozzle body approaches as one side and the other side approach the tip. It has a tapered shape. Further, as a method for detachably attaching the lower layer material cover and the upper layer material cover, there are screwing with a plurality of screws, bolting and fixing with a plurality of bolts, and the like.

  When the lower layer material cover and the upper layer material cover are detachably attached in this way, when the foreign material enters the path of the lower layer material or the upper layer material in the two-layer material application nozzle and the coating pattern is disturbed. The foreign material can be easily removed by removing the lower layer material cover or the upper layer material cover, maintenance is easy, and a stable coating pattern can be ensured.

  In this way, it is possible to apply the upper layer material and the lower layer material stably with a constant width and thickness with good adhesion, and without the air being caught between the upper layer material and the lower layer material, In addition to the occurrence of blistering, the nozzle for coating a two-layer material is easy to maintain.

  In the two-layer material application nozzle according to the invention of claim 3, a lower layer material groove portion having a width equal to or smaller than the width of the lower layer material reservoir is provided between the lower layer material inlet and the lower layer material reservoir, The lower layer material reservoir communicates with a plurality of passages, and an upper layer material groove portion having a width equal to or smaller than the width of the upper layer material reservoir is provided between the upper layer material inlet and the upper layer material reservoir. The upper layer material reservoir communicates with a plurality of passages.

  As a result, the lower layer material and the upper layer material press-fitted from the lower layer material inlet and the upper layer material inlet once flow into the lower layer material groove portion and the upper layer material groove portion having a width, respectively, and then pass through a plurality of passages from there. Since it flows into the material reservoir and the upper layer material reservoir, the flow is adjusted and the pressure becomes uniform, from the tip of the lower layer material slit and the upper layer material slit having the same width or less as the lower layer material reservoir and the upper layer material reservoir, It is always extruded with a uniform width and thickness.

  In this way, it is possible to apply the upper layer material and the lower layer material stably with a constant width and thickness with good adhesion, and without the air being caught between the upper layer material and the lower layer material, It becomes a nozzle for applying a two-layer material that does not swell.

  The method for applying a two-layer material according to the invention of claim 4 includes a step of pressing the lower layer material through a slit having an opening having a predetermined width and a predetermined thickness, and an upper layer material at an outlet to the outside or A process of pushing through a slit having an opening of a predetermined width and a predetermined thickness by applying pressure while being in close contact with the upper surface of the lower layer material before the extrusion port to the outside, and extruding the adhered lower layer material and upper layer material to the outside A step of bringing the lower surface of the lower layer material into close contact with the surface of the base material while extruding from the mouth.

  As a result, the upper layer material comes into close contact with the upper surface of the lower layer material at or before the extrusion port to the outside, so that air is not caught between the lower layer material and the upper layer material. And since both the lower layer material and the upper layer material are extruded by applying pressure through a slit having an opening with a predetermined width and a predetermined thickness, respectively, they are extruded from the slit with a predetermined width and a predetermined thickness, and a stable width and Extruded by thickness. Furthermore, by bringing the lower surface of the lower layer material into close contact with the substrate surface, air is not caught between the substrate surface.

  In this way, it is possible to apply the upper layer material and the lower layer material stably with a constant width and thickness with good adhesion, and without the air being caught between the upper layer material and the lower layer material, This is a coating method of a two-layer material that does not cause blistering.

  A nozzle for applying a multilayer material according to the invention of claim 5 is a lower layer material injection port into which a lower layer material is injected, and one or more intermediate layer material injection ports into which one or more intermediate layer materials are injected, An upper layer material inlet through which the upper layer material is injected, a lower layer material reservoir having a predetermined width communicating with the lower layer material inlet, and a predetermined width communicating with one or more intermediate layer material inlets One or two or more intermediate layer material reservoirs having an upper layer material reservoir having a predetermined width communicating with the upper layer material inlet, and a lower layer material communicating with the lower layer material reservoir. The lower layer material slit extruded with a narrower width and a predetermined thickness and one or more intermediate layer material reservoirs communicate with each other, and the one or more intermediate layer materials have a predetermined width or the predetermined width, respectively. Inside one or more extruded with a narrower width and a predetermined thickness The upper layer material slit is communicated with the upper layer material reservoir, and the upper layer material is extruded with a predetermined width or a width smaller than the predetermined width and a predetermined thickness. Or the tip of two or more intermediate layer material slits and the tip of the upper layer material slit are provided close to the nozzle port of the multilayer material coating nozzle or the position inside the nozzle port and pushed out from the lower layer material slit And one or more intermediate layer materials extruded from one or more intermediate layer material slits and the upper layer material extruded from the upper layer material slits are extruded from the nozzle opening.

  By having such a structure, in the multilayer material application nozzle according to the present invention, the lower layer material injected into the lower layer material inlet is once expanded to a predetermined width in the lower layer material reservoir, and then the same as the lower material reservoir. Since it is extruded from the lower layer material slit having a width equal to or smaller than the width, even if the injection pressure at the lower layer material injection port fluctuates, it is always stably applied with a predetermined width and a predetermined thickness. The same applies to the intermediate layer material and the upper layer material.

  And the tip of the lower layer material slit, the tip of the intermediate layer material slit, and the tip of the upper layer material slit are provided close to the position inside the nozzle port or the nozzle port, the lower layer material, the intermediate layer material and the upper layer Since the material is pushed out from the nozzle opening in close contact with the material, air is not caught between the lower layer material, the intermediate layer material, and the upper layer material. Therefore, even when there is a heat baking step after the coating step, no swelling occurs between these layers.

  In this way, the upper layer material, the intermediate layer material and the lower layer material can be applied stably with a constant width and thickness with good adhesion, and air is not involved between these coating materials, and heating is performed. It becomes a nozzle for applying a multilayer material that does not swell during baking.

  The nozzle for applying a multilayer material according to the invention of claim 6 is divided into a number obtained by adding 1 to the number of layers of the intermediate layer material in a direction parallel to the intermediate layer material slit, and 1 or 2 or more of the lower layer material injection port The intermediate layer material inlet and the upper layer material inlet are on the upper surface, the lower layer material reservoir is on one side surface, the upper layer material reservoir is on the other side surface, and one or more intermediate layer material reservoirs are on one or more divided surfaces. On the other hand, each provided nozzle body, a lower layer material spacer having a thickness corresponding to a predetermined thickness of the lower layer material slit, and a thickness corresponding to a predetermined thickness of one or more intermediate layer material slits 1 or 2 or more intermediate layer material spacers, an upper layer material spacer having a thickness corresponding to a predetermined thickness of the upper layer material slit, a lower layer material cover and an upper layer material cover, and divided nozzle body 1 or 2 or more on one or more split surfaces The nozzle body is assembled in such a way that the intermediate layer material spacer is sandwiched, the lower layer material cover is detachably mounted on one side surface of the nozzle body, and the upper layer material spacer is mounted on the other side surface of the nozzle body An upper layer material cover is detachably attached across the wall.

  Here, as described above, since the tip of the lower layer material slit, the tip of the intermediate layer material slit, and the tip of the upper layer material slit are provided close to each other, the nozzle body has one side surface and the other side surface. It has a tapered shape that approaches as it goes to the tip. Further, as a method of detachably attaching the nozzle body and attaching the lower layer material cover and the upper layer material cover in a detachable manner, there are screwing with a plurality of screws, bolting and fixing with a plurality of bolts, and the like.

  In this way, the nozzle body is assembled in a detachable manner, and the lower layer material cover and the upper layer material cover are detachably attached, so that foreign matter can enter the passage of the lower layer material, intermediate layer material, or upper layer material in the nozzle for multilayer material application. If the coating pattern is disturbed due to contamination, foreign matter can be easily removed by dividing the nozzle body or removing the lower layer cover or upper layer cover, making maintenance easy and stable. The applied pattern can be ensured.

  In this way, the upper layer material, the intermediate layer material and the lower layer material can be applied stably with a constant width and thickness with good adhesion, and air is not involved between these coating materials, and heating is performed. Not only does this not cause blistering during baking, but also a nozzle for coating a multilayer material that is easy to maintain.

  The multilayer material application nozzle according to the invention of claim 7 is provided with a lower material groove portion having a width equal to or less than the width of the lower material material reservoir between the lower material inlet and the lower material material reservoir. The material reservoir communicates with a plurality of passages, and the width of the intermediate layer material reservoir is less than the width of the intermediate layer material reservoir between one or more intermediate layer material inlets and one or more intermediate layer material reservoirs. The intermediate layer material groove portion is provided, the intermediate layer material groove portion and the intermediate layer material reservoir communicate with each other through a plurality of passages, and the width of the upper layer material reservoir is provided between the upper layer material inlet and the upper layer material reservoir. An upper layer material groove having the following width is provided, and the upper layer material groove and the upper layer material reservoir communicate with each other through a plurality of passages.

  Accordingly, the lower layer material, the intermediate layer material, and the upper layer material that are press-fitted from the lower layer material injection port, the intermediate layer material injection port, and the upper layer material injection port respectively have a lower layer material groove portion, an intermediate layer material groove portion, and an upper layer material groove portion that once have widths To the lower layer material reservoir, the intermediate layer material reservoir, and the upper layer material reservoir, so that the flow is adjusted and the pressure becomes uniform, the lower layer material reservoir, the intermediate layer material reservoir and It is always extruded with a uniform width and thickness from the tip of the lower layer material slit, the tip of the intermediate layer material slit, and the tip of the upper layer material slit having a width equal to or smaller than the upper layer material reservoir.

  In this way, the upper layer material, the intermediate layer material and the lower layer material can be applied stably with a constant width and thickness with good adhesion, and air is not involved between these coating materials, and heating is performed. It becomes a nozzle for applying a multilayer material that does not swell during baking.

  In the nozzle for applying a two-layer material or the nozzle for applying a multilayer material according to the invention of claim 8, the tip portion including the tip of the nozzle body along the curved shape perpendicular to the application direction of the substrate surface has a longitudinal direction (width). Direction).

  When the surface of the substrate is curved along the coating direction, the upper layer material is formed by using a double-layer material coating nozzle or a multilayer material coating nozzle whose tip is linear in the longitudinal direction (width direction). And while extruding the lower layer material or upper layer material, intermediate layer material and lower layer material, the two-layer material application nozzle or the multilayer material application nozzle is moved so that it is always perpendicular to the substrate surface while moving in the application direction. By making it, it can apply | coat with sufficient adhesiveness.

  On the other hand, when the substrate surface is curved along a direction perpendicular to the coating direction, the tip of the nozzle body is aligned along a curved shape perpendicular to the coating direction of the substrate surface according to the present invention. Application is performed using a nozzle for applying a two-layer material or a nozzle for applying a multilayer material in which the tip portion including the (nozzle port) is curved in the longitudinal direction (width direction). Thereby, since the space | interval of a base-material surface and a front-end | tip part can be made constant over the width direction full length of a front-end | tip part, without impairing favorable adhesiveness, an upper layer material and a lower layer material or An upper layer material, an intermediate layer material, and a lower layer material can be applied.

  In this way, the upper layer material and the lower layer material or the upper layer material, the intermediate layer material, and the lower layer material can be stably and uniformly applied to the curved base material surface with a constant width and thickness. It becomes a nozzle for applying a two-layer material or a nozzle for applying a multilayer material that does not involve air between the coating materials and does not swell during baking.

  The method for applying a multilayer material according to the invention of claim 9 includes a step of pressing the lower layer material through a slit having an opening having a predetermined width and a predetermined thickness, and one or more intermediate layer materials to the outside. Extruding through a slit having an opening with a predetermined width and a predetermined thickness by applying pressure while adhering to the upper surface of the lower layer material at the extrusion port or before the extrusion port to the outside, and extruding the upper layer material to the outside Extruding through a slit having an opening having a predetermined width and a predetermined thickness by applying pressure while adhering to the upper surface of one or more intermediate layer materials at the mouth or before the extruding port to the outside; And the step of bringing the lower surface of the lower layer material into close contact with the substrate surface while extruding the material, one or more intermediate layer materials and the upper layer material from the extrusion port to the outside.

  As a result, the intermediate layer material comes into close contact with the upper surface of the lower layer material at or before the extrusion port to the outside, so that no air is caught between the lower layer material and the intermediate layer material. Further, since the upper layer material is in close contact with the upper surface of the intermediate layer material at or before the extrusion port to the outside, air is not caught between the intermediate layer material and the upper layer material. And since the lower layer material, the intermediate layer material, and the upper layer material are each pushed out through a slit having an opening with a predetermined width and a predetermined thickness, they are extruded from the slit with a predetermined width and a predetermined thickness, Extruded with stable width and thickness. Furthermore, by bringing the lower surface of the lower layer material into close contact with the substrate surface, air is not caught between the substrate surface.

  In this way, the upper layer material, the intermediate layer material and the lower layer material can be applied stably with a constant width and thickness with good adhesion, and air is not involved between these coating materials, and heating is performed. This is a method for applying a multilayer material that does not cause blistering during baking.

  Hereinafter, a two-layer material coating nozzle, a multilayer material coating nozzle, a two-layer material coating method, and a multilayer material coating method according to an embodiment of the present invention will be described with reference to the drawings.

Embodiment 1
First, a two-layer material application nozzle and a two-layer material application method according to the first embodiment of the present invention will be described with reference to FIGS.

  FIG. 1 (a) is a perspective view showing the entire structure of the two-layer material application nozzle according to the first embodiment of the present invention as viewed from below, and FIG. 1 (b) is a two-layer material application according to the first embodiment of the present invention. It is a perspective view which shows the whole nozzle structure and the applied two-layer material. FIG. 2 is an exploded perspective view showing the other side surface of the two-layer material application nozzle according to the first embodiment of the present invention. 3A is a left side view according to the arrow A in FIG. 2, and FIG. 3B is a right side view according to the arrow B in FIG.

  4 (a) to 4 (f) are explanatory diagrams showing a method for applying a two-layer material using the nozzle for applying a two-layer material according to the first embodiment of the present invention. FIG. 5 (a) is an explanatory view showing a coating method on the substrate surface curved in the coating direction of the two-layer material coating nozzle according to the first embodiment of the present invention, and (b) is a diagram of the two-layer material coating nozzle. Explanatory drawing which shows the 1st modification of the nozzle for double layer material application | coating concerning Embodiment 1 of this invention for the base-material surfaces curved in the direction perpendicular | vertical to an application direction, (c) is Embodiment 1 of this invention. It is explanatory drawing which shows the 2nd modification of the nozzle for two-layer material application | coating concerning.

  As shown in FIG. 1 (a), the two-layer material application nozzle 1 according to the first embodiment is tightened with a nozzle body 2 and three hexagon socket bolts 5 on one side surface of the nozzle body 2. A lower layer material cover 3 to be fixed, a lower layer material spacer 3B sandwiched between one side surface of the nozzle body 2 and the lower layer material cover 3, and three hexagon socket bolts 5 on the other side surface of the nozzle body 2 The upper layer material cover 4 is fastened and fixed, and the upper layer material spacer 4B is sandwiched between the other side surface of the nozzle body 2 and the upper layer material cover 4.

  In the two-layer material application nozzle 1 according to the first embodiment, the nozzle main body 2, the lower layer material cover 3, the lower layer material spacer 3B, the upper layer material cover 4, and the upper layer material spacer 4B as these components are made resistant. Although cemented carbide tungsten carbide is used from the viewpoint of wearability, other metals such as stainless steel, carbon steel, brass, brass, aluminum and alloys thereof may be used depending on the application.

  As shown in FIG. 1A, by sandwiching a lower layer material spacer 3B between one side surface of the nozzle body 2 and the lower layer material cover 3, the vicinity of the lower end of the two-layer material application nozzle 1 (nozzle port 8). ) Is provided with a lower layer material slit 3A having a predetermined opening width and a predetermined opening thickness, and an upper layer material spacer 4B is sandwiched between the other side surface of the nozzle body 2 and the upper layer material cover 4, thereby providing a two-layer material. An upper layer material slit 4A having a predetermined opening width and a predetermined opening thickness is provided in the vicinity of the lower end (nozzle port 8) of the coating nozzle 1. 1A, the lower layer material Pd is pushed out from the lower layer material slit 3A and the upper layer material Pu is pushed out from the upper layer material slit 4A in close contact with each other.

  Here, as shown in FIGS. 1A and 1B, the lower end of the upper layer material slit 4A is higher than the lower end of the lower layer material slit 3A by the opening thickness (about 1 mm) of the lower layer material slit 3A. . As a result, the lower layer material Pd pushed out from the lower layer material slit 3A and the upper layer material Pu pushed out from the upper layer material slit 4A are smoothly brought into close contact with each other and extruded together.

  Further, as shown in FIG. 1B, in the two-layer material application nozzle 1 according to the first embodiment, the lower-layer material injection pipe 3C is inserted into the lower-layer material injection port 6C provided on the upper surface of the nozzle body 2. The lower layer material coating gun 3D of the painting robot is connected to the upper layer material injection gun 4D of the painting robot via the upper layer material injection pipe 4C similarly to the upper layer material injection port 7C provided on the upper surface of the nozzle body 2. Is connected. Further, a lower layer material press-fit pipe 3E is connected to the lower layer material paint gun 3D, and an upper layer material press-fit tube 4E is connected to the upper layer material paint gun 4D.

  Then, an unillustrated coating gun open / close air solenoid valve is operated to first open the lower layer material coating gun 3D, while pushing the lower layer material Pd out of the lower layer material slit 3A as shown by an imaginary line in FIG. The two-layer material application nozzle 1 is moved, the upper-layer material coating gun 4D is opened with a slight delay, and the upper-layer material Pu is pushed out from the upper-layer material slit 4A as indicated by an imaginary line in FIG. The nozzle 1 for layer material application is moved.

  When coating to a predetermined range is completed, the solenoid valve for coating gun opening / closing air is operated to close first the upper layer material coating gun 4D and then close the lower layer material coating gun 3D with a slight delay, so that FIG. As shown in the figure, the lower layer material Pd applied to the rectangle is exposed in about 3 mm on each side, and the upper layer material Pu is in close contact with the lower layer material Pd. Complete.

  In the first embodiment, as the two-layer material applied by the two-layer material application nozzle 1, an example in which a two-layer coated steel plate reinforcing material used for vibration damping and reinforcement of a vehicle panel is used. Shows about. That is, the upper layer material Pu is excellent in rigidity and mainly serves as a constraining layer that reinforces the steel plate, and the lower layer material Pd is excellent in flexibility and adhesiveness, and mainly adheres the steel plate and the upper layer material Pu and prevents distortion.・ It plays a role as a buffer layer. The lower layer material Pd is applied to a thickness of about 1 mm, and the upper layer material Pu is applied to a thickness of about 2 mm, twice that of the lower layer material Pd.

  Therefore, if the upper layer material Pu is applied in a state of being in direct contact with the steel plate, the lower layer material Pd can no longer serve as an adhesive / buffer layer for preventing distortion. The width of 4A is also shortened by 3 mm on each of the left and right sides of the lower layer material slit 3A, and the coating timing is also controlled so that the lower layer material Pd is applied before the upper layer material Pu as described above and the application is completed later. The upper layer material Pu is reliably applied via the lower layer material Pd without directly touching the steel plate.

  Next, the internal structure of the two-layer material application nozzle 1 according to the first embodiment will be described with reference to FIG.

  As shown in FIG. 2, a flow path for the upper layer material Pu is formed on the other side surface of the nozzle body 2. The upper groove, that is, the upper layer material groove portion 7B communicates with an upper layer material injection port 7C provided on the upper surface of the nozzle body 2, and the upper layer material Pu flowing into the upper groove 7B from the upper layer material injection port 7C has two It is divided into passages and expands to the full width of the lower groove, that is, the upper layer material reservoir 7A, and is pushed out from the upper layer material slit 4A (width of about 64 mm) provided in the upper layer material spacer 4B (thickness of about 2 mm).

  As shown in FIG. 2, the upper layer material spacer 4B is sandwiched between the upper layer material cover 4 and the other side surface of the nozzle body 2 with the three hexagon socket bolts 5 to fix the upper layer material. An upper layer material slit 4A having a predetermined opening width (about 64 mm) and opening thickness (about 2 mm) communicating with the inlet 7C is formed.

  The inner surface of the opposite side of the two-layer material application nozzle 1, that is, one of the side surfaces is the same as that shown in FIG. 2 except for the width (about 70 mm) of the lower groove, that is, the lower layer material reservoir 6A. The thickness of the lower layer material spacer 3B (about 1 mm) and the width of the lower layer material slit 3A (about 70 mm). By providing the tip of the lower layer material slit 3A and the tip of the upper layer material slit 4A close to each other, the nozzle port 8 is formed.

  In the first embodiment, the upper layer material cover 4 (and the lower layer material cover 3) are fastened and fixed to the nozzle body 2 with three hexagon socket head bolts 5. This is the dimensional accuracy of each component. If the dimensional accuracy of each part is a little inferior, it is necessary to tighten and fix with more hexagon socket head bolts 5 to surely prevent the liquid leakage. As in the first embodiment, by being able to be tightened and fixed with the minimum necessary hexagon socket head bolts 5, it is possible to obtain the operational effect of improving the appearance and improving the efficiency during maintenance.

  Next, the structure of each part of the two-layer material application nozzle 1 according to the first embodiment will be described in more detail with reference to FIG.

  As shown by a broken line in FIG. 3 (a), the double-layer material application nozzle 1 communicates with the upper-layer material inlet 7C when viewed from the arrow A in FIG. When the upper groove, that is, the upper layer material groove portion 7B comes to the front side, the upper layer material Pu injected into the upper layer material groove portion 7B is divided into two flows and flows into the lower groove, that is, the upper layer material reservoir 7A. Is adjusted to expand to the full width of the upper layer material reservoir 7A.

  Similarly, as indicated by a broken line in FIG. 3B, when the two-layer material coating nozzle 1 is viewed from the direction of arrow B in FIG. The upper groove communicating with 6C, that is, the lower layer material groove 6B comes to the front side, and the lower layer material Pd injected into the lower material groove 6B is divided into two flows and flows into the lower groove, that is, the lower material pool 6A. As a result, the flow is adjusted and expands to the full width of the lower layer material reservoir 6A.

  Then, the lower layer material Pd and the upper layer material Pu applied with pressure enter the lower layer material coating gun 3D and the upper layer material coating gun 4D from the lower layer material press-fitting pipe 3E and the upper layer material press-fitting pipe 4E, respectively, and are blocked by an internal opening / closing valve. Therefore, the solenoid valve for painting gun opening / closing air (not shown) is operated to open the opening / closing valves in the lower layer coating gun 3D and the upper layer coating gun 4D, so that the lower layer material Pd has a thickness of about 1 mm and a width of about 70 mm. Then, the upper layer material Pu is pushed out from the upper layer material slit 4A with a thickness of about 2 mm and a width of about 64 mm from the lower layer material slit 3A.

  Next, a method for applying the lower layer material Pd and the upper layer material Pu by the two-layer material application nozzle 1 according to the first embodiment will be described in more detail with reference to FIG.

  First, as shown in FIG. 4A, the tip of the two-layer material application nozzle 1 is brought close to the base material surface G so as to be separated by the thickness of the lower layer material slit 3A (about 1 mm). Subsequently, as shown in FIG. 4B, a painting gun opening / closing air solenoid valve (not shown) is operated to open the opening / closing valve in the lower layer material coating gun 3D, and the lower layer material Pd is pushed out from the lower layer material slit 3A. The two-layer material application nozzle 1 is moved in the right direction in the figure while being in close contact with the substrate surface G.

  Then, when moved by a predetermined distance (about 3 mm), as shown in FIG. 4C, a solenoid valve for painting gun opening / closing air (not shown) is operated to open the opening / closing valve inside the upper layer coating gun 4D, The upper layer material Pu is pushed out from the upper layer material slit 4A while being in close contact with the lower layer material Pd, and the two-layer material application nozzle 1 is further moved rightward in the drawing.

  As shown in FIG. 4 (d), when the upper layer material Pu is applied by a predetermined length, the opening / closing valve inside the upper layer material coating gun 4D is closed to stop the extrusion of the upper layer material Pu, and further, a predetermined distance from there. When moved by (about 3 mm), as shown in FIG. 4E, the opening / closing valve inside the lower layer material coating gun 3D is closed to stop the extrusion of the lower layer material Pd. Then, when the two-layer material application nozzle 1 is raised, the upper-layer material Pu and the lower-layer material Pd are not pulled by the thread as shown in FIG. 1, the application of the upper layer material Pu and the lower layer material Pd to the substrate surface G is completed.

  In this way, in the two-layer material coating nozzle 1 and the two-layer material coating method according to the first embodiment, the upper layer material Pu and the lower layer material Pd are stably adhered to each other with a constant width and thickness. It can be applied, does not entrain air between the upper layer material Pu and the lower layer material Pd, has good adhesion between the lower layer material Pd and the substrate surface G, and swells during heat baking in the subsequent process It does not occur. In addition, as shown in FIG. 2, since it is configured to be disassembled, maintenance when foreign matter is mixed is easy.

  Next, an application method and a two-layer material application nozzle in the case where the substrate surface to which the two-layer material is applied are curved will be described with reference to FIG. As described above, the upper layer material Pu and the lower layer material Pd according to the first embodiment are two-layer coated steel plate reinforcements used for damping and reinforcing vehicle panels, and are used for vehicle door panel steel plates. In many cases, the surface of the base material is curved.

  As shown in FIG. 5A, when the substrate surface G1 is curved along the application direction, the upper layer is formed using the two-layer material application nozzle 1 according to the first embodiment. By extruding the material Pu and the lower layer material Pd, the two-layer material application nozzle 1 is moved in the application direction and rotated so as to be always perpendicular to the base material surface G1, thereby applying with good adhesion. it can.

  On the other hand, as shown in FIG. 5B, when the substrate surface G2 is curved along a direction perpendicular to the application direction, the first modification of the first embodiment is performed. The upper layer material Pu and the lower layer material Pd are applied using the two-layer material application nozzle 21A according to the example. As shown in FIG. 5B, in the two-layer material application nozzle 21A according to the first modification, the tip portion 24a is curved along the curved shape of the substrate surface G2, and the other portions. The configuration is the same as that of the nozzle 1 for applying a two-layer material according to the first embodiment described above.

  Therefore, in the two-layer material application nozzle 21A according to the first modification, the distance between the base material surface G2 and the tip portion 24a can be made constant over the entire length in the width direction of the tip portion 24a. The upper layer material Pu and the lower layer material Pd can be applied to the substrate surface G2 without impairing good adhesion.

  Similarly, as shown in FIG. 5C, the second embodiment of the first embodiment also applies when the substrate surface G3 is asymmetrically curved along a direction perpendicular to the application direction. The upper layer material Pu and the lower layer material Pd are applied using the two-layer material application nozzle 21B according to the modification. As shown in FIG. 5 (c), the two-layer material application nozzle 21B according to the second modification has the tip portion 24b curved along the curved shape of the substrate surface G3. The distance between the surface G3 and the tip portion 24b can be made constant over the entire length in the width direction, and the upper layer material Pu and the lower layer material Pd can be applied to the substrate surface G3 without impairing good adhesion. .

Embodiment 2
Next, a two-layer material application nozzle and a two-layer material application method according to Embodiment 2 of the present invention will be described with reference to FIGS.

  FIG. 6 is a perspective view showing the entire structure of the two-layer material application nozzle according to the second embodiment of the present invention and the applied two-layer material. Fig.7 (a) is a front view of the nozzle for 2 layer material application | coating concerning Embodiment 2 of this invention, (b) is a bottom view. 8A is a left side view according to the arrow C in FIG. 6, and FIG. 8B is a right side view according to the arrow D in FIG. FIGS. 9A to 9F are explanatory views showing a method for applying a two-layer material using a nozzle for applying a two-layer material according to Embodiment 2 of the present invention.

  As shown in FIG. 6, the two-layer material application nozzle 11 according to the second embodiment is also an application nozzle for applying the upper layer material Pu and the lower layer material Pd in close contact with each other. The two-layer material application nozzle 1 is different from the two-layer material application nozzle 1 of the first embodiment in that the lower layer material injection port 16C and the upper layer material injection port 17C provided on the upper surface of the nozzle body 12 are the same. Are arranged in the direction perpendicular to the coating direction, that is, in the width direction of the nozzle, whereas in the two-layer material coating nozzle 11 according to the second embodiment, the coating direction is along the thickness direction of the nozzle. The points are arranged.

  Therefore, as shown in FIG. 6, the two-layer material application nozzle 11 according to the second exemplary embodiment has a thickness (length in the application direction) of the nozzle body 12 for applying the two-layer material of the first exemplary embodiment. It is larger than the nozzle 1. The structure of the other parts is the same as that of the two-layer material application nozzle 1 of the first embodiment except for the internal structure.

  That is, the two-layer material application nozzle 11 according to the second embodiment includes a nozzle body 12, a lower layer material cover 13 that is fastened and fixed to one side surface of the nozzle body 12 with three hexagon socket bolts 15, A lower layer material spacer 13B sandwiched between one side surface of the nozzle body 12 and the lower layer material cover 13, and an upper layer material cover 14 fastened and fixed to the other side surface of the nozzle body 12 by three hexagon socket bolts 15; The upper layer material spacer 14 </ b> B is sandwiched between the other side surface of the nozzle body 12 and the upper layer material cover 14.

  In the two-layer material application nozzle 11 according to the second embodiment, the nozzle main body 12, the lower layer material cover 13, the lower layer material spacer 13B, the upper layer material cover 14, and the upper layer material spacer 14B as these components are resistant to materials. Although cemented carbide tungsten carbide is used from the viewpoint of wearability, other metals such as stainless steel, carbon steel, brass, brass, aluminum and alloys thereof may be used depending on the application.

  The lower layer material injection port 16C and the upper layer material injection port 17C on the upper surface of the nozzle body 12 are respectively connected to a lower layer material coating gun 13D and an upper layer material coating gun of the coating robot via a lower layer material injection tube 13C and an upper layer material injection tube 14C, respectively. 14D is connected. Further, a lower layer material press-fit pipe 13E is connected to the lower layer material paint gun 13D, and an upper layer material press-fit pipe 14E is connected to the upper layer material paint gun 14D.

  Also in the second embodiment, as a two-layer material applied by the two-layer material application nozzle 11, a two-layer type coated steel plate reinforcing material (upper layer material Pu) used for vibration damping and reinforcement of a vehicle panel, etc. Since the example using the lower layer material Pd) is described, as shown in FIG. 6, the lower layer material Pd is applied to a rectangle 3 mm longer than the upper layer material Pu by 4 mm.

  Next, a more detailed configuration of the two-layer material application nozzle 11 will be described with reference to FIG. As shown in the front view of FIG. 7A, in the two-layer material application nozzle 11 according to the second embodiment, the lower layer material injection port 16C and the upper layer material injection port 17C are along the thickness direction of the nozzle. Therefore, the upper groove, that is, the lower layer material groove portion 16B and the upper layer material groove portion 17B, and the lower groove, that is, the lower layer material reservoir 16A and the upper layer material reservoir 17A, which are the lower flow paths, are disposed in the nozzle body 12. It is provided approximately symmetrically.

  7 (a) and 7 (b), the lower layer material cover 13 is clamped to one side surface of the nozzle body 12 with three hexagon socket bolts 15 with the lower layer material spacer 13B interposed therebetween. The lower layer material slit 13A having a predetermined opening width (about 70 mm) and opening thickness (about 1 mm) communicating with the lower layer material injection port 16C is fixed. Similarly, the upper layer material cover 14 is clamped and fixed to the other side surface of the nozzle body 12 with three hexagon socket head bolts 15 with the upper layer material spacer 14B interposed therebetween, thereby predetermined communication with the upper layer material inlet 17C. An upper layer material slit 14A having an opening width (about 64 mm) and an opening thickness (about 2 mm) is formed.

  Here, as shown in FIG. 7A, the lower end of the upper layer material slit 14A is higher than the lower end of the lower layer material slit 13A by the opening thickness (about 1 mm) of the lower layer material slit 13A. As a result, the lower layer material Pd pushed out from the lower layer material slit 13A and the upper layer material Pu pushed out from the upper layer material slit 14A are smoothly brought into close contact with each other and extruded together.

  Next, the internal structure of the two-layer material application nozzle 11 will be described in more detail with reference to FIG.

  6A shown in FIG. 8A, that is, the left side surface is the other side surface of the nozzle body 12 in the present invention, and the upper layer material cover 14 is attached with the upper layer material spacer 14B interposed therebetween. On the side. As indicated by a broken line in FIG. 8A, the upper layer material injection port 17C communicates with the upper layer material groove 17B, and further communicates with the upper layer material reservoir 17A through four passages. Therefore, the upper layer material Pu injected into the upper layer material groove portion 17B is divided into four flows and flows into the upper layer material reservoir 17A, whereby the flow is adjusted and the upper layer material reservoir 17A expands to the full width.

  On the other hand, the arrow D in FIG. 6 shown in FIG. 8B, that is, the right side surface is one side surface of the nozzle body 12 in the present invention, and the lower layer material cover 13 is attached with the lower layer material spacer 13B interposed therebetween. On the side. As indicated by a broken line in FIG. 8B, the lower layer material injection port 16C communicates with the lower layer material groove 16B, and further communicates with the lower layer material reservoir 16A through four passages. Therefore, the lower layer material Pd injected into the lower layer material groove 16B is divided into four flows and flows into the lower layer material reservoir 16A, whereby the flow is adjusted and the lower layer material reservoir 16A is expanded to the full width.

  Then, the lower layer material Pd and the upper layer material Pu applied with pressure enter the lower layer material coating gun 13D and the upper layer material coating gun 14D from the lower layer material press-fitting pipe 13E and the upper layer material press-fitting pipe 14E, respectively, and are blocked by an internal opening / closing valve. Therefore, by operating a solenoid valve for painting gun opening / closing air (not shown) to open the opening / closing valves inside the lower layer material painting gun 13D and the upper layer material painting gun 14D, the lower layer material Pd has a thickness of about 1 mm and a width of about 70 mm. Then, the upper layer material Pu is extruded from the upper layer material slit 14A with a thickness of about 2 mm and a width of about 64 mm from the lower layer material slit 13A.

  Next, a method for applying the lower layer material Pd and the upper layer material Pu using the two-layer material application nozzle 11 according to the second embodiment will be described in more detail with reference to FIG.

  First, as shown in FIG. 9A, the tip of the two-layer material application nozzle 11 is brought close to the base material surface G so as to be separated by the thickness (about 1 mm) of the lower layer material slit 13A. Subsequently, as shown in FIG. 9B, a painting gun open / close air solenoid valve (not shown) is operated to open the open / close valve inside the lower layer material coating gun 13D, and the lower layer material Pd is pushed out from the lower layer material slit 13A. The two-layer material application nozzle 11 is moved in the right direction in the figure while being in close contact with the substrate surface G.

  Then, when moved by a predetermined distance (about 3 mm), as shown in FIG. 9 (c), the solenoid valve for coating gun opening / closing air (not shown) is operated to open the opening / closing valve inside the upper layer material coating gun 14D, The upper layer material Pu is pushed out from the upper layer material slit 14A while being in close contact with the lower layer material Pd, and the two-layer material application nozzle 11 is further moved rightward in the drawing.

  As shown in FIG. 9D, when the upper layer material Pu is applied by a predetermined length, the opening / closing valve inside the upper layer coating gun 14D is closed to stop the extrusion of the upper layer material Pu, and further, a predetermined distance from there. When moved by (about 3 mm), as shown in FIG. 9E, the opening / closing valve inside the lower layer coating gun 13D is closed to stop the extrusion of the lower layer Pd. Then, when the two-layer material application nozzle 11 is raised, the upper-layer material Pu and the lower-layer material Pd are not pulled by the thread as shown in FIG. 11, the application of the upper layer material Pu and the lower layer material Pd to the base material surface G is completed.

  Thus, in the two-layer material application nozzle 11 and the two-layer material application method according to the second embodiment, the upper layer material Pu and the lower layer material Pd are stably adhered to each other with a constant width and thickness. It can be applied, does not entrain air between the upper layer material Pu and the lower layer material Pd, has good adhesion between the lower layer material Pd and the substrate surface G, and swells during heat baking in the subsequent process It does not occur. In addition, as with the two-layer material application nozzle 1 according to the first embodiment, since it is configured to be disassembled by only three hexagon socket head bolts 15 on one side, maintenance when foreign matter is mixed in is easy. is there.

  The two-layer material application nozzle 11 according to the second embodiment inevitably increases in length, ie, thickness in the application direction due to its structure, and therefore follows the application direction as shown in FIG. Regarding the application to the curved substrate surface, there are some disadvantages compared to the two-layer material application nozzle 1 according to the first embodiment. On the other hand, since there is room in the interior of the two-layer material application nozzle 1 according to the first embodiment, there is an advantage that the internal passage can be configured more easily.

Embodiment 3
Next, a two-layer material coating nozzle and a two-layer material coating method according to Embodiment 3 of the present invention will be described with reference to FIGS.

  FIG. 10A is a perspective view showing the entire structure of the two-layer material application nozzle according to the third embodiment of the present invention as seen from below, and FIG. 10B is a two-layer material application according to the third embodiment of the present invention. It is a perspective view which shows the whole nozzle structure and the applied two-layer material. 11A is a left side view according to the arrow E in FIG. 10, and FIG. 11B is a right side view according to the arrow F in FIG. 12 (a) to 12 (f) are explanatory diagrams showing a method for applying a two-layer material using a nozzle for applying a two-layer material according to Embodiment 3 of the present invention.

  As shown in FIG. 10, the overall structure of the two-layer material application nozzle 31 according to the third embodiment is similar to the two-layer material application nozzle 1 of the first embodiment. First, as shown in FIG. 10A, the tip of the lower layer material slit 33A and the tip of the upper layer material slit 34A are retracted inside the nozzle port 38 of the two-layer material application nozzle 31 as shown in FIG. In other words, the lower layer material Pd and the upper layer material Pu are already in close contact with each other when being pushed out from the nozzle port 38. Second, as shown in FIG. 10B, the opening width and opening thickness of the lower layer material slit 33A are substantially the same as the opening width and opening thickness of the upper layer material slit 34A. Therefore, the upper layer material Pu is applied to the same width, the same length, and the same thickness as the lower layer material Pd.

  Thirdly, as shown in FIGS. 11A and 11B, the opening width of the lower layer material slit 33A and the opening width of the upper layer material slit 34A are the same as the width of the lower layer material reservoir 36A and the upper layer material reservoir 37A. The point is that each is narrower than the width.

  In Embodiment 1 and Embodiment 2 above, the opening width of the lower layer material slit and the opening width of the upper layer material slit are the same as the width of the lower layer material reservoir and the upper layer material reservoir. In the two-layer material application nozzle 31, even if the injection pressure varies by making the opening widths of the lower layer material slit 33A and the upper layer material slit 34A narrower than the widths of the lower layer material reservoir 36A and the upper layer material reservoir 37A, respectively. , Always stably applied with a predetermined width and a predetermined thickness.

  As for other points, the two-layer material application nozzle 31 according to the third embodiment has the same configuration as the two-layer material application nozzle 1 according to the first embodiment as shown in FIG. is doing.

  That is, the two-layer material application nozzle 31 according to the third embodiment includes a nozzle body 32, a lower layer material cover 33 that is fastened and fixed to one side surface of the nozzle body 32 with three hexagon socket head cap bolts 35, A lower layer material spacer 33B sandwiched between one side surface of the nozzle body 32 and the lower layer material cover 33; and an upper layer material cover 34 fastened and fixed to the other side surface of the nozzle body 32 by three hexagon socket bolts 35. The upper layer material spacer 34B is sandwiched between the other side surface of the nozzle body 32 and the upper layer material cover 34.

  In the two-layer material application nozzle 31 according to the third embodiment, the nozzle main body 32, the lower layer material cover 33, the lower layer material spacer 33B, the upper layer material cover 34, and the upper layer material spacer 34B as the component parts are resistant to materials. Although cemented carbide tungsten carbide is used from the viewpoint of wearability, other metals such as stainless steel, carbon steel, brass, brass, aluminum and alloys thereof may be used depending on the application.

  The lower layer material injection port 36C and the upper layer material injection port 37C on the upper surface of the nozzle body 32 are respectively connected to the lower layer material coating gun 33D and the upper layer material coating gun of the painting robot via the lower layer material injection tube 33C and the upper layer material injection tube 34C. 34D is connected. Further, a lower layer material press-fit pipe 33E is connected to the lower layer material paint gun 33D, and an upper layer material press-fit pipe 34E is connected to the upper layer material paint gun 34D.

  Here, as shown in FIGS. 10A and 10B, the lower end of the upper layer material slit 34A is higher than the lower end of the lower layer material slit 33A by the opening thickness (about 2 mm) of the lower layer material slit 33A. . As a result, the lower layer material Pd pushed out from the lower layer material slit 33A and the upper layer material Pu pushed out from the upper layer material slit 34A are smoothly brought into close contact with each other and are integrally pushed out from the nozzle port 38.

  Next, the internal structure of the two-layer material application nozzle 31 will be described in more detail with reference to FIG.

  10A shown in FIG. 11A, that is, the left side surface is the other side surface of the nozzle body 32 in the present invention, and the upper layer material cover 34 is attached with the upper layer material spacer 34B interposed therebetween. The side that is being. As indicated by a broken line in FIG. 11A, the upper layer material injection port 37C communicates with the upper layer material groove portion 37B, and further communicates with the upper layer material reservoir 37A through three passages. Therefore, the upper layer material Pu injected into the upper layer material groove portion 37B is divided into three flows and flows into the upper layer material reservoir 37A, whereby the flow is adjusted and the entire width of the upper layer material reservoir 37A is expanded.

  On the other hand, the arrow F in FIG. 10A shown in FIG. 11B, that is, the right side surface is one side surface of the nozzle body 32 in the present invention, and the lower layer material cover 33 with the lower layer material spacer 33B interposed therebetween. Is the side where is installed. As indicated by a broken line in FIG. 11B, the lower layer material inlet 36C communicates with the lower layer material groove 36B, and further communicates with the lower layer material reservoir 36A via three passages. Therefore, the lower layer material Pd injected into the lower layer material groove portion 36B is divided into three flows and flows into the lower layer material reservoir 36A, whereby the flow is adjusted and expands to the full width of the lower layer material reservoir 36A.

  Then, the lower layer material Pd and the upper layer material Pu applied with pressure enter the lower layer material coating gun 33D and the upper layer material coating gun 34D from the lower layer material press-fitting pipe 33E and the upper layer material press-fitting pipe 34E, respectively, and are blocked by an internal opening / closing valve. Therefore, by operating a solenoid valve for painting gun opening / closing air (not shown) and opening the opening / closing valves inside the lower layer material painting gun 33D and the upper layer material painting gun 34D, the lower layer material Pd and the upper layer material Pu are about 2 mm thick. , Having a width of about 64 mm, extruded from the lower layer material slit 13A and the upper layer material slit 14A.

  Next, a method of applying the lower layer material Pd and the upper layer material Pu by the two-layer material application nozzle 31 according to the third embodiment will be described in more detail with reference to FIG.

  First, as shown in FIG. 12A, the tip of the two-layer material application nozzle 31 is brought close to the substrate surface G so as to be separated by the thickness of the lower layer material slit 33A (about 2 mm). Subsequently, as shown in FIG. 12B, a painting gun open / close air solenoid valve (not shown) is operated to open the open / close valve inside the lower layer material coating gun 33D and the open / close valve inside the upper layer material coating gun 34D, Two-layer material coating nozzle while extruding the lower layer material Pd from the lower layer material slit 33A and extruding the upper layer material Pu from the upper layer material slit 34A while being in close contact with the lower layer material Pd. 31 is moved rightward in the figure.

  Thereby, as shown in FIG. 12C, the lower layer material Pd and the upper layer material Pu are integrally extruded from the nozzle port 38 and applied onto the substrate surface G. Then, as shown in FIG. 12D, when the lower layer material Pd and the upper layer material Pu are applied by a predetermined length, as shown in FIG. 12E, an open / close valve inside the lower layer material coating gun 33D. And the on-off valve inside the upper layer material coating gun 34D is closed, and the extrusion of the lower layer material Pd and the upper layer material Pu is stopped. Then, when the two-layer material application nozzle 31 is raised, the upper-layer material Pu and the lower-layer material Pd are not pulled by the thread as shown in FIG. Separated from 31, the application of the upper layer material Pu and the lower layer material Pd to the substrate surface G is completed.

  Thus, in the two-layer material application nozzle 31 and the two-layer material application method according to the third embodiment, the upper layer material Pu and the lower layer material Pd are stably adhered to each other with a constant width and thickness. It can be applied, does not entrain air between the upper layer material Pu and the lower layer material Pd, has good adhesion between the lower layer material Pd and the substrate surface G, and swells during heat baking in the subsequent process It does not occur. Further, like the two-layer material application nozzle 1 according to the first embodiment, since it is configured to be disassembled by only three hexagon socket head bolts 35 on one side, maintenance when foreign matters are mixed in is easy. is there.

Embodiment 4
Next, a multilayer material coating nozzle and a multilayer material coating method according to Embodiment 4 of the present invention will be described with reference to FIGS.

  FIG. 13: is a perspective view which shows the whole structure of the multilayer material application nozzle concerning Embodiment 4 of this invention, and the apply | coated three-layer material. FIG. 14 is an exploded perspective view showing the other side surface and nozzle body of the multilayer material application nozzle according to the fourth embodiment of the present invention in an exploded manner. FIGS. 15A to 15F are explanatory views showing a method for applying a three-layer material using a multilayer material application nozzle according to a fourth embodiment of the present invention.

  As shown in FIG. 13, in addition to the upper layer material Pu and the lower layer material Pd in the first to third embodiments, the multilayer material application nozzle 41 according to the fourth embodiment is intermediate between them. This is a three-layer material application nozzle for simultaneously applying the layer material Pm.

  That is, as shown in the exploded view of FIG. 14, the lower layer material slit 43A for extruding the lower layer material Pd is opened at the lowermost end, and is higher by the opening thickness (about 1 mm) of the lower layer material slit 43A. Are provided with an intermediate layer material slit 45A for extruding the intermediate layer material Pm, and an upper layer material slit for extruding the upper layer material Pu at a position higher by the opening thickness (about 1 mm) of the intermediate layer material slit 45A. 44A is provided.

  As shown in FIG. 13, in order to provide an intermediate layer material slit 45A for extruding the intermediate layer material Pm, the nozzle main body 42 is divided into two main body constituting portions 42A and 42B, and a lower layer material inlet is formed on the upper surface of the main body constituting portion 42A. 46C and an intermediate layer material inlet 48C are provided, and an upper layer material inlet 47C is provided on the upper surface of the main body constituting portion 42B. The lower layer material injection port 46C, the intermediate layer material injection port 48C, and the upper layer material injection port 47C are linearly arranged on the upper surface of the nozzle body 42 along the application direction.

  As shown in FIG. 13, the nozzle 41 for applying a multilayer material according to the fourth embodiment is divided into two main body constituting parts 42 </ b> A and 42 </ b> B and is fastened and fixed with two hexagon socket bolts 45. The intermediate layer material spacer 45B sandwiched between the main body constituting portions 42A and 42B, the lower layer material cover 43 fastened and fixed to the one side surface of the nozzle main body 42 with three hexagon socket head bolts 45, and the nozzle main body 42 A lower layer material spacer 43B sandwiched between one side surface and the lower layer material cover 43, an upper layer material cover 44 fastened and fixed to the other side surface of the nozzle body 42 with three hexagon socket bolts 45, and a nozzle body 42 The upper layer material spacer 44 </ b> B is sandwiched between the other side surface and the upper layer material cover 44.

  In the multilayer material application nozzle 41 according to the fourth embodiment, the main body constituting portions 42A and 42B, the lower layer material cover 43, the lower layer material spacer 43B, the upper layer material cover 44, the upper layer material spacer 44B, and the middle as these component parts. Cemented carbide tungsten carbide is used as the material of the layer spacer 45B from the viewpoint of wear resistance, but other metals such as stainless steel, carbon steel, brass, brass, aluminum and alloys thereof are used depending on the application. Etc. may be used.

  The lower layer material injection port 46C, the intermediate layer material injection port 48C, and the upper layer material injection port 47C on the upper surface of the nozzle body 42 are respectively connected via a lower layer material injection tube 43C, an intermediate layer material injection tube 45C, and an upper layer material injection tube 44C. The lower layer coating gun 43D, the intermediate layer coating gun 45D, and the upper layer coating gun 44D of the coating robot are connected. Further, a lower layer material press-in pipe 43E is connected to the lower layer material paint gun 43D, an intermediate layer material press-fit tube 45E is connected to the intermediate layer material paint gun 45D, and an upper layer material press-fit pipe 44E is connected to the upper layer material paint gun 44D. Yes.

  In the fourth embodiment, as a multilayer material applied by the multilayer material application nozzle 41, a three-layer coated steel sheet reinforcing material (upper layer material Pu, intermediate material) used for vibration damping and reinforcement of a vehicle panel, etc. Since the example using the layer material Pm and the lower layer material Pd) is described, as shown in FIG. 13, the lower layer material Pd is applied in a rectangle 3 mm longer than the upper layer material Pu and the intermediate layer material Pm by 4 mm. I try to do it.

  Here, as shown in FIGS. 13 and 15A, the lower end of the intermediate layer material slit 45A is higher than the lower end of the lower layer material slit 43A by the opening thickness (about 1 mm) of the lower layer material slit 43A. The lower end of the upper layer material slit 44A is higher than the lower end of the intermediate layer material slit 45A by the opening thickness (about 1 mm) of the intermediate layer material slit 45A. As a result, the lower layer material Pd extruded from the lower layer material slit 43A, the intermediate layer material Pm extruded from the intermediate layer material slit 45A, and the upper layer material Pu extruded from the upper layer material slit 44A are smoothly adhered and integrated. Pushed out.

  Next, the internal structure of the multilayer material application nozzle 41 according to the fourth embodiment will be described with reference to FIG.

  As shown in FIG. 14, a flow path for the intermediate layer material Pm is formed in the divided surface of the main body constituting portion 42 </ b> A constituting the nozzle main body 42. The upper groove, that is, the intermediate layer material groove portion 48B communicates with an intermediate layer material injection port 48C provided on the upper surface of the main body constituting portion 42A of the nozzle body 42, and the intermediate layer material injection port 48C leads to the intermediate layer material groove portion 48B. The flowing intermediate layer material Pm is divided into four passages and expands to the full width of the lower groove, that is, the intermediate layer material reservoir 48A, and the intermediate layer material slit 45A provided in the intermediate layer material spacer 45B (thickness of about 1 mm). It is extruded from (width about 64mm).

  Furthermore, a flow path for the upper layer material Pu is formed on the other side surface of the main body constituting portion 42B constituting the nozzle main body 42. The upper groove, that is, the upper layer material groove portion 47B communicates with an upper layer material inlet 47C provided on the upper surface of the main body constituting portion 42B of the nozzle body 42, and the upper layer material flowing into the upper layer material groove portion 47B from the upper layer material inlet 47C. Pu is divided into four passages and expands to the full width of the lower groove, that is, the upper layer material reservoir 47A, and is pushed out from the upper layer material slit 44A (width of about 64 mm) provided in the upper layer material spacer 44B (thickness of about 2 mm). .

  The side surface on the opposite side of the multilayer material application nozzle 41, that is, the internal structure of one side surface is the same as that shown in FIG. 14, except for the width (about 70 mm) of the lower groove or lower layer material reservoir 46A, The thickness of the lower layer material spacer 43B (about 1 mm) and the width of the lower layer material slit 43A (about 70 mm).

  Next, a method of applying the lower layer material Pd, the intermediate layer material Pm, and the upper layer material Pu by the multilayer material application nozzle 41 according to the fourth embodiment will be described with reference to FIG.

  First, as shown in FIG. 15A, the tip of the multilayer material application nozzle 41 is brought close to the base material surface G so as to be approximately the thickness of the lower layer material slit 43A (about 1 mm), and the coating (not shown) is performed. The solenoid valve for gun opening / closing air is operated to open the opening / closing valve in the lower layer material coating gun 43D, and the lower layer material Pd is pushed out from the lower layer material slit 43A to be in close contact with the substrate surface G, and the multilayer material application nozzle 41 is illustrated. Move to the right.

  Then, when it has moved by a predetermined distance (about 3 mm), as shown in FIG. 15B, the solenoid valve for painting gun opening / closing air (not shown) is operated to open the opening / closing valve inside the intermediate layer coating gun 45D. Then, the intermediate layer material Pm is pushed out from the intermediate layer material slit 45A while being in close contact with the lower layer material Pd, and the multilayer material application nozzle 11 is moved to the right in the figure, and further, as shown in FIG. The solenoid valve for opening and closing the coating gun opening / closing air is operated to open the opening / closing valve inside the upper layer material coating gun 44D, and the upper layer material Pu is pushed out from the upper layer material slit 44A while being in close contact with the intermediate layer material Pm. 41 is moved rightward in the figure.

  As shown in FIG. 15 (d), when the intermediate layer material Pm and the upper layer material Pu are applied for a predetermined length, the intermediate layer material coating gun 45D and the upper layer material coating gun 44D are closed to close the intermediate layer material. When the extrusion of the material Pm and the upper layer material Pu is stopped and further moved from there by a predetermined distance (about 3 mm), the open / close valve inside the lower layer material coating gun 43D is closed as shown in FIG. 15 (e). The extrusion of the lower layer material Pd is stopped. When the multilayer material application nozzle 41 is raised, the upper layer material Pu, the intermediate layer material Pm, and the lower layer material Pd are not pulled by the thread as shown in FIG. Separated from the application nozzle 41, the application of the upper layer material Pu, the intermediate layer material Pm and the lower layer material Pd to the substrate surface G is completed.

  As described above, in the multilayer material application nozzle 41 and the multilayer material application method according to the fourth embodiment, the upper layer material Pu, the intermediate layer material Pm, and the lower layer material have a stable and constant width and thickness and good adhesion. The material Pd can be applied, air is not involved between the upper layer material Pu, the intermediate layer material Pm, and the lower layer material Pd, and the adhesion between the lower layer material Pd and the base material surface G is also good. No blistering occurs during heat baking.

  Similarly to the two-layer material application nozzles 1, 11, and 31 described above, the nozzle body 42 includes only two hexagon socket bolts 45, and the lower layer material cover 43 and the upper layer material cover 44 each include only three. Since it is configured to be disassembled by the hexagon socket head cap bolt 45, maintenance when foreign matter is mixed is easy.

  In each of the above-described embodiments, an example in which a coated steel plate reinforcing material used for vibration suppression / reinforcement of a vehicle panel is used as a two-layer material and a multilayer material to be applied is described. Instead, it can be used to apply various two-layer materials and multilayer materials having different compositions and viscosities.

  Regarding the configuration, shape, material, size, manufacturing method, etc. of the other parts of the nozzle for applying the two-layer material and the nozzle for applying the multilayer material, as well as other steps of the method for applying the two-layer material and the method for applying the multilayer material The invention is not limited to the above embodiments.

FIG. 1 (a) is a perspective view showing the entire structure of the two-layer material application nozzle according to the first embodiment of the present invention as viewed from below, and FIG. 1 (b) is a two-layer material application according to the first embodiment of the present invention. It is a perspective view which shows the whole nozzle structure and the applied two-layer material. FIG. 2 is an exploded perspective view showing the other side surface of the two-layer material application nozzle according to the first embodiment of the present invention. 3A is a left side view according to the arrow A in FIG. 2, and FIG. 3B is a right side view according to the arrow B in FIG. 4 (a) to 4 (f) are explanatory diagrams showing a method for applying a two-layer material using the nozzle for applying a two-layer material according to the first embodiment of the present invention. FIG. 5 (a) is an explanatory view showing a coating method on the substrate surface curved in the coating direction of the two-layer material coating nozzle according to the first embodiment of the present invention, and (b) is a diagram of the two-layer material coating nozzle. Explanatory drawing which shows the 1st modification of the nozzle for double layer material application | coating concerning Embodiment 1 of this invention for the base-material surfaces curved in the direction perpendicular | vertical to an application direction, (c) is Embodiment 1 of this invention. It is explanatory drawing which shows the 2nd modification of the nozzle for two-layer material application | coating concerning. FIG. 6 is a perspective view showing the entire structure of the two-layer material application nozzle according to the second embodiment of the present invention and the applied two-layer material. Fig.7 (a) is a front view of the nozzle for 2 layer material application | coating concerning Embodiment 2 of this invention, (b) is a bottom view. 8A is a left side view according to the arrow C in FIG. 6, and FIG. 8B is a right side view according to the arrow D in FIG. FIGS. 9A to 9F are explanatory views showing a method for applying a two-layer material using a nozzle for applying a two-layer material according to Embodiment 2 of the present invention. FIG. 10A is a perspective view showing the entire structure of the two-layer material application nozzle according to the third embodiment of the present invention as seen from below, and FIG. 10B is a two-layer material application according to the third embodiment of the present invention. It is a perspective view which shows the whole nozzle structure and the applied two-layer material. 11A is a left side view according to the arrow E in FIG. 10, and FIG. 11B is a right side view according to the arrow F in FIG. 12 (a) to 12 (f) are explanatory diagrams showing a method for applying a two-layer material using a nozzle for applying a two-layer material according to Embodiment 3 of the present invention. FIG. 13: is a perspective view which shows the whole structure of the multilayer material application nozzle concerning Embodiment 4 of this invention, and the apply | coated three-layer material. FIG. 14 is an exploded perspective view showing the other side surface and nozzle body of the multilayer material application nozzle according to the fourth embodiment of the present invention in an exploded manner. FIGS. 15A to 15F are explanatory views showing a method for applying a three-layer material using a multilayer material application nozzle according to a fourth embodiment of the present invention. FIGS. 16A to 16G are explanatory views showing a coating method for a two-layer coating material according to Conventional Example 1. FIG. 17A to 17F are explanatory views showing a coating method for a two-layer coating material according to Conventional Example 2. FIG.

Explanation of symbols

1,11,21A, 21B, 31 Nozzle for applying two-layer material 2,12,22A, 22B, 32,42 Nozzle body 3,13,33,43 Lower material cover 3A, 13A, 33A, 43A Lower material slit 3B, 13B, 33B, 43B Lower layer material spacer 4, 14, 24A, 24B, 34, 44 Upper layer material cover 4A, 14A, 34A, 44A Upper layer material slit 4B, 14B, 34B, 44B Upper layer material spacer 6A, 16A, 36A Lower layer material pool 6B, 16B, 36B Lower layer groove 6C, 16C, 36C, 46C Lower layer inlet 7A, 17A, 37A, 47A Upper layer reservoir 7B, 17B, 37B Upper layer groove 7C, 17C, 37C, 47C Upper layer inlet 8, 18, 38 Nozzle port 41 Multi-layer material coating nozzle 45A Intermediate layer material slit 45B Intermediate layer material spacer 8A intermediate layer material reservoir 48B intermediate layer material groove 48C intermediate layer material inlet G, G1, G2, G3 substrate surface Pd underlying material Pm intermediate layer material Pu upper material

Claims (9)

A nozzle for applying a two-layer material for efficiently applying a two-layer coating material composed of a lower layer material applied to the substrate surface and an upper layer material applied on the lower layer material,
A lower material inlet through which the lower material is injected;
An upper layer material inlet through which the upper layer material is injected;
A lower layer material reservoir having a predetermined width communicating with the lower layer material inlet;
An upper layer material reservoir having a predetermined width communicating with the upper layer material inlet;
A lower layer material slit that is communicated with the lower layer material reservoir and the lower layer material is extruded with a predetermined thickness and a predetermined width of the lower layer material reservoir or a width narrower than the predetermined width;
The upper layer material is communicated with the upper layer material reservoir, and the upper layer material is provided with a predetermined thickness and a predetermined width of the upper layer material reservoir or an upper layer material slit extruded with a width smaller than the predetermined width,
The tip of the lower layer material slit and the tip of the upper layer material slit are provided close to the nozzle port of the two-layer material application nozzle or the position inside the nozzle port,
The two-layer material application nozzle, wherein the lower layer material extruded from the lower layer material slit and the upper layer material extruded from the upper layer material slit are extruded from the nozzle port in a state of being in close contact with each other. A nozzle body provided with the lower layer material inlet and the upper layer material inlet on the upper surface, the lower layer material reservoir on one side, and the upper layer material reservoir on the other side;
A lower layer spacer having a thickness corresponding to a predetermined thickness of the lower layer slit,
An upper layer material spacer having a thickness corresponding to a predetermined thickness of the upper layer material slit;
It comprises a lower layer material cover and an upper layer material cover,
The lower layer material cover is detachably mounted on one side surface of the nozzle body, and the upper layer material cover is detachably mounted on the other side surface of the nozzle body with the upper layer material spacer interposed. The nozzle for applying a two-layer material according to claim 1, wherein the nozzle is applied. A lower layer material groove having a width equal to or less than the width of the lower layer material reservoir is provided between the lower layer material inlet and the lower layer material reservoir, and a plurality of passages are provided between the lower material groove and the lower material reservoir. Communicate with
An upper layer material groove having a width equal to or smaller than the width of the upper layer material reservoir is provided between the upper layer material inlet and the upper layer material reservoir, and a plurality of passages are provided between the upper layer material groove and the upper layer material reservoir. The nozzle for applying a two-layer material according to claim 1, wherein the two-layer material application nozzle is provided. A method for applying a two-layer material for efficiently applying a two-layer coating material comprising a lower layer material applied to a substrate surface and an upper layer material applied on the lower layer material,
Extruding the lower layer material through a slit having an opening of a predetermined width and a predetermined thickness by applying pressure;
Extruding the upper layer material through a slit having an opening having a predetermined width and a predetermined thickness by applying pressure while adhering to the upper surface of the lower layer material at an external extrusion port or before the external extrusion port; ,
A method of applying a two-layer material, comprising: adhering a lower surface of the lower layer material to the surface of the base material while extruding the adhered lower layer material and upper layer material from the extrusion port to the outside. Multi-layer coating of three or more layers comprising a lower layer material applied to the substrate surface, one or more intermediate layer materials applied on the lower layer material, and an upper layer material applied on the intermediate layer material A multilayer material application nozzle for efficiently applying a material,
A lower material inlet through which the lower material is injected;
One or more intermediate layer material inlets into which the one or more intermediate layer materials are injected;
An upper layer material inlet through which the upper layer material is injected;
A lower layer material reservoir having a predetermined width communicating with the lower layer material inlet;
One or more intermediate layer material reservoirs having a predetermined width respectively communicating with the one or more intermediate layer material inlets;
An upper layer material reservoir having a predetermined width communicating with the upper layer material inlet;
A lower layer material slit that communicates with the lower layer material reservoir and the lower layer material is extruded at the predetermined width or a width narrower than the predetermined width and a predetermined thickness;
The one or two intermediate layer materials communicated with the one or more intermediate layer material reservoirs, respectively, and the one or two or more intermediate layer materials are respectively extruded with the predetermined width or a width narrower than the predetermined width and a predetermined thickness. The above intermediate layer material slit,
An upper layer material slit communicated with the upper layer material reservoir and the upper layer material is extruded at the predetermined width or a width narrower than the predetermined width and a predetermined thickness;
The tip of the lower layer material slit, the tip of the one or more intermediate layer material slits, and the tip of the upper layer material slit are close to the nozzle port of the multilayer material application nozzle or a position entering the inside from the nozzle port. Provided,
In a state where the lower layer material extruded from the lower layer material slit, the one or more intermediate layer materials extruded from the one or more intermediate layer material slits, and the upper layer material extruded from the upper layer material slit are in close contact with each other. A nozzle for applying a multilayer material, which is extruded from the nozzle opening. The number of layers of the intermediate layer material is divided by 1 in the direction parallel to the intermediate layer material slit, and the lower layer material inlet, the one or more intermediate layer material inlets, and the upper layer material injection are divided. An inlet is provided on the upper surface, the lower layer material reservoir is provided on one side surface, the upper layer material reservoir is provided on the other side surface, and the one or more intermediate layer material reservoirs are provided on one of the one or more divided surfaces. Nozzle body,
A lower layer spacer having a thickness corresponding to a predetermined thickness of the lower layer slit,
One or more intermediate layer material spacers having a thickness corresponding to a predetermined thickness of the one or more intermediate layer material slits;
An upper layer material spacer having a thickness corresponding to a predetermined thickness of the upper layer material slit;
It comprises a lower layer material cover and an upper layer material cover,
The nozzle body is detachably assembled with one or more intermediate layer material spacers sandwiched between one or more divided surfaces of the divided nozzle body, and the lower layer material spacer is mounted on one side surface of the nozzle body. 6. The lower layer material cover is detachably attached across the nozzle body, and the upper layer material cover is detachably attached to the other side surface of the nozzle body with the upper layer material spacer interposed therebetween. The multilayer material application nozzle as described. A lower layer material groove having a width equal to or less than the width of the lower layer material reservoir is provided between the lower layer material inlet and the lower layer material reservoir, and a plurality of passages are provided between the lower material groove and the lower material reservoir. Communicate with
Between the one or two or more intermediate layer material inlets and the one or two or more intermediate layer material reservoirs, an intermediate layer material groove having a width equal to or less than the width of the intermediate layer material reservoir is provided, The intermediate layer material groove and the intermediate layer material reservoir communicate with each other through a plurality of passages.
An upper layer material groove having a width equal to or smaller than the width of the upper layer material reservoir is provided between the upper layer material inlet and the upper layer material reservoir, and a plurality of passages are provided between the upper layer material groove and the upper layer material reservoir. The multilayer material application nozzle according to claim 5, wherein the nozzle is used for communication.   The tip portion including the tip of the nozzle body is curved in the longitudinal direction (width direction) along a curved shape perpendicular to the application direction of the substrate surface. The multi-layer material application nozzle according to any one of claims 5 to 7, or the multilayer material application nozzle according to any one of claims 5 to 7. Multi-layer coating of three or more layers comprising a lower layer material applied to the substrate surface, one or more intermediate layer materials applied on the lower layer material, and an upper layer material applied on the intermediate layer material A multilayer material application method for efficiently applying a material,
Extruding the lower layer material through a slit having an opening of a predetermined width and a predetermined thickness by applying pressure;
An opening having a predetermined width and a predetermined thickness is formed by applying pressure while bringing the one or more intermediate layer materials into close contact with the upper surface of the lower layer material at the outside extrusion port or before the outside extrusion port. Extruding through a slit having,
An opening having a predetermined width and a predetermined thickness by applying pressure while bringing the upper layer material into close contact with the upper surface of the one or two or more intermediate layer materials at the outside extrusion port or before the outside extrusion port. Extruding through a slit having
And adhering the lower surface of the lower layer material to the surface of the base material while extruding the adhered lower layer material, one or two or more intermediate layer materials and the upper layer material from the extrusion port to the outside. Multilayer material application method.

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