Two-component spraying device and two-component spraying method

Abstract

To provide a two-liquid mixture injector and a two-liquid mixture injection method capable of suppressing mixture unevenness of coating liquid.SOLUTION: A two-liquid mixture injector EA is a device that injects first coating liquid and second coating liquid, mixes the first coating liquid and the second coating liquid, and coats a surface to be coated. The two-liquid mixture injector EA includes: a first nozzle 10 that injects the first coating liquid; a second nozzle 20 that injects the second coating liquid; and control means 30 that controls injection of the first nozzle 10 and the second nozzle 20. The control means 30 injects the second coating liquid to the second nozzle 20 before the first nozzle 10 injects the first coating liquid.SELECTED DRAWING: Figure 1

Description

Technical Field

[0001] The present invention relates to a two - liquid mixing injection device and a two - liquid mixing injection method.

Background Art

[0002] A two - liquid mixing injection device that injects and mixes a first coating liquid and a second coating liquid is known (see, for example, Patent Document 1).

Prior Art Documents

Patent Documents

[0003]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0004] The two - liquid mixing air - mix gun (two - liquid mixing injection device) described in Patent Document 1 injects and mixes a silver mirror treatment liquid (first coating liquid) and a reducing liquid (second coating liquid). However, for example, when the injection amount of the second coating liquid is less than that of the first coating liquid, or when the viscosity of the second coating liquid is high, the dispersion of the second coating liquid with respect to the first coating liquid becomes insufficient, and there is a disadvantage that uneven mixing of the coating liquids occurs.

[0005] An object of the present invention is to provide a two - liquid mixing injection device and a two - liquid mixing injection method capable of suppressing uneven mixing of coating liquids.

Means for Solving the Problems

[0006] A two-liquid mixing spray device according to one aspect of the present invention is a two-liquid mixing spray device that sprays a first coating liquid and a second coating liquid, mixes the first coating liquid and the second coating liquid and applies it to a surface to be coated, comprising a first nozzle for spraying the first coating liquid, a second nozzle for spraying the second coating liquid, and control means for controlling the spraying of the first nozzle and the second nozzle, wherein the control means causes the second coating liquid to be sprayed by the second nozzle before the first coating liquid is sprayed by the first nozzle.

[0007] In a two-liquid mixture spraying device according to one aspect of the present invention, the first nozzle comprises a first coating liquid injection hole for spraying the first coating liquid and a first gas injection hole for spraying gas, and the second nozzle comprises a second coating liquid injection hole for spraying the second coating liquid and a second gas injection hole for spraying gas, and of the first gas injection hole and the second gas injection hole, at least the second gas injection hole is inclined toward the corresponding coating liquid injection hole among the first and second coating liquid injection holes, and the inclination angle of the second gas injection hole with respect to the second coating liquid injection hole may be greater than the inclination angle of the first gas injection hole with respect to the first coating liquid injection hole.

[0008] In a two-liquid mixing spray device according to one aspect of the present invention, the second nozzle may be positioned further away from the surface to be coated than the first nozzle.

[0009] A two-liquid mixing spray device according to one aspect of the present invention comprises a plurality of second nozzles, and the plurality of second nozzles may be arranged such that the application areas of the second coating liquids on the surface to be coated overlap with the application areas of the first coating liquids by the first nozzles.

[0010] A two-liquid mixing spray method according to one aspect of the present invention is a two-liquid mixing spray method that sprays a first coating liquid and a second coating liquid, mixes the first coating liquid and the second coating liquid and applies it to a surface to be coated, comprising: a first coating liquid spraying step of spraying the first coating liquid with a first nozzle; a second coating liquid spraying step of spraying the second coating liquid with a second nozzle; and a control step of controlling the spraying of the first nozzle and the second nozzle, wherein in the control step, the second coating liquid is sprayed with the second nozzle before the first coating liquid is sprayed with the first nozzle. [Effects of the Invention]

[0011] According to the present invention, the dispersion of the second coating liquid in the first coating liquid is promoted, thereby suppressing uneven mixing of the coating liquids. [Brief explanation of the drawing]

[0012] [Figure 1] (A) is a side view of a raw material manufacturing apparatus equipped with a two-liquid mixing spray device according to the first embodiment. (B) is a partial plan view of (A). (C) is a longitudinal cross-sectional view of the first nozzle. (D) is a view of (C) from the direction of arrow DD. (E) is a longitudinal cross-sectional view of the second nozzle. (F) is a view of (E) from the direction of arrow FF. [Figure 2] (A) is a side view of a raw material manufacturing apparatus equipped with a two-liquid mixing spray device according to the second embodiment. (B) is a partial plan view of (A). (C) is a longitudinal cross-sectional view of the first nozzle. (D) is a view of (C) from the direction of arrow DD. (E) is a longitudinal cross-sectional view of the second nozzle. (F) is a view of (E) from the direction of arrow FF. [Figure 3] (A) is a side view of a raw material manufacturing apparatus equipped with a two-liquid mixing spray device according to the third embodiment. (B) is a partial plan view of (A). (C) is a longitudinal cross-sectional view of the first nozzle. (D) is a view of (C) from the direction of arrow DD. (E) is a longitudinal cross-sectional view of the second nozzle. (F) is a view of (E) from the direction of arrow FF. [Figure 4] (A) is a side view of a raw material manufacturing apparatus equipped with a two-liquid mixing spray device according to the fourth embodiment. (B) is a partial plan view of (A). (C) is a longitudinal cross-sectional view of the first nozzle. (D) is a view of (C) from the direction of arrow DD. (E) is a longitudinal cross-sectional view of the second nozzle. (F) is a view of (E) from the direction of arrow FF. [Figure 5](A) is a side view of a raw material manufacturing apparatus equipped with a two-liquid mixing spray device according to a modified example. (B) is a partial plan view of (A). (C) is a longitudinal section view of the first nozzle. (D) is a view of (C) from the direction of arrow DD. (E) is a longitudinal section view of the second nozzle. (F) is a view of (E) from the direction of arrow FF. [Figure 6] (A) is a side view of a raw material manufacturing apparatus equipped with a two-liquid mixing spray device according to a modified example. (B) is a partial plan view of (A). (C) is a longitudinal section view of the first nozzle. (D) is a view of (C) from the direction of arrow DD. (E) is a longitudinal section view of the second nozzle. (F) is a view of (E) from the direction of arrow FF. [Figure 7] (A) is a side view of a raw material manufacturing apparatus equipped with a two-liquid mixing spray device according to a modified example. (B) is a partial plan view of (A). (C) is a longitudinal section view of the first nozzle. (D) is a view of (C) from the direction of arrow DD. (E) is a longitudinal section view of the second nozzle. (F) is a view of (E) from the direction of arrow FF. [Figure 8] A plan view showing the arrangement of the first and second nozzles of a modified two-liquid mixture spray device. [Figure 9] A plan view showing the arrangement of the first and second nozzles of a modified two-liquid mixture spray device. [Modes for carrying out the invention]

[0013] Embodiments of the present invention will be described below with reference to the drawings. In this embodiment, the X, Y, and Z axes are orthogonal to each other. The X and Y axes are axes within a predetermined plane, and the Z axis is an axis perpendicular to the predetermined plane. Furthermore, in this embodiment, when directions are indicated based on a view from the front direction in Figure 1(A) parallel to the Y axis, "up" is the direction of the Z-axis arrow and "down" is the opposite direction, "left" is the direction of the X-axis arrow and "right" is the opposite direction, "front" is the front direction in Figure 1(A) parallel to the Y axis and "back" is the opposite direction. Because the configurations of each embodiment are schematically shown in the drawings, their actual shape, size, and scale may differ. Furthermore, in the second embodiment and subsequent embodiments, components with the same configuration and function as those of the embodiments already described will be given the same number as the embodiment, or their illustration will be omitted, and their descriptions will be simplified or omitted.

[0014] [First Embodiment] In FIGS. 1(A) to 1(F), a two-liquid mixing injection device EA is a device that injects a main agent as a first coating liquid and a curing agent as a second coating liquid, mixes the main agent and the curing agent, and applies them to a coated surface AB1. The two-liquid mixing injection device EA includes a first nozzle 10 that injects the main agent, a second nozzle 20 that injects the curing agent, a control means 30 that controls the injection of the first nozzle 10 and the second nozzle 20, a first coating liquid supply means 40 that supplies the main agent to the first nozzle 10, a second coating liquid supply means 50 that supplies the curing agent to the second nozzle 20, a first gas supply means 60 that supplies a gas such as air or gas to the first nozzle 10, and a second gas supply means 70 that supplies a gas such as air or gas to the second nozzle 20. Further, the two-liquid mixing injection device EA includes a feeding means 80 that feeds a base material AB having a coated surface AB1, and a drying means 90 that dries the main agent and the curing agent applied to the coated surface AB1, thereby constituting a raw fabric manufacturing device EA1.

[0015] The first nozzle 10 includes a first coating liquid injection hole 11 that injects the main agent supplied from the first coating liquid supply means 40, a first gas injection hole 12 that injects the gas supplied from the first gas supply means 60, and a frustoconical recess 13 provided at the tip of the first nozzle 10 and having a reduced diameter toward the base end. The first coating liquid injection hole 11 has an injection port 14 that opens at the bottom surface of the recess 13. The first gas injection hole 12 has an injection port 15 that opens at the side surface of the recess 13. In the case of this embodiment, the first gas injection hole 12 is annular in a cross-sectional view and surrounds the first coating liquid injection hole 11, and is a conical ring shape with a gradually reduced diameter at the tip. That is, the first gas injection hole 12 is inclined in a direction toward the first coating liquid injection hole 11 at the tip with respect to the first coating liquid injection hole 11. Further, the injection port 14 of the first coating liquid injection hole 11 is circular, and the injection port 15 of the first gas injection hole 12 is formed in a concentric circle with the injection port 14 and is an annular shape surrounding the injection port 14.

[0016] The second nozzle 20 includes a second coating liquid injection hole 21 for injecting the curing agent supplied from the second coating liquid supply means 50, a second gas injection hole 22 for injecting the gas supplied from the second gas supply means 70, and a frustum-shaped recess 23 provided at the tip of the second nozzle 20 and having a reduced diameter toward the base end. The second coating liquid injection hole 21 has an injection port 24 opened on the bottom surface of the recess 23. The second gas injection hole 22 has an injection port 25 opened on the side surface of the recess 23. In the case of this embodiment, the second nozzle 20 is provided separately from the first nozzle 10, is disposed at the same height position as the first nozzle 10, and is arranged side by side with the first nozzle 10 in the front-rear direction. Also, the second nozzle 20 has the same shape as the first nozzle 10, and the inclination angle θ2 of the second gas injection hole 22 with respect to the second coating liquid injection hole 21 is the same as the inclination angle θ1 of the first gas injection hole 12 with respect to the first coating liquid injection hole 11.

[0017] The control means 30 is composed of a personal computer, a sequencer, etc., controls the injection of the first nozzle 10 and the second nozzle 20, and controls the operations of the two-liquid mixing injection device EA and the raw fabric manufacturing device EA1. In the case of this embodiment, the control means 30 performs control to cause the second nozzle 20 to inject the curing agent before the first nozzle 10 injects the main agent.

[0018] The first coating liquid supply means 40 includes a pressurizing means 42 such as a pressurizing pump or a turbine for pumping the main agent into the first coating liquid supply pipe 41 communicating with the first coating liquid injection hole 11, and a switching valve 43 such as an electromagnetic valve or a hydraulic control valve provided in the first coating liquid supply pipe 41 for switching the presence or absence of injection of the main agent by the first nozzle 10.

[0019] The second coating liquid supply means 50 includes a pressurizing means 52 such as a pressurizing pump or a turbine for pumping the curing agent into the second coating liquid supply pipe 51 communicating with the second coating liquid injection hole 21, and a switching valve 53 such as an electromagnetic valve or a hydraulic control valve provided in the second coating liquid supply pipe 51 for switching the presence or absence of injection of the curing agent by the second nozzle 20.

[0020] The first gas supply means 60 includes a pressurizing means 62 such as a pressurizing pump or turbine that pressurizes and sends gas to a first gas supply pipe 61 that communicates with the first gas injection hole 12, and a switching valve 63 such as a solenoid valve or hydraulic control valve that is provided in the first gas supply pipe 61 and switches whether or not gas is injected by the first nozzle 10.

[0021] The second gas supply means 70 includes a pressurizing means 72, such as a pressurizing pump or turbine, for pressurizing and sending gas to a second gas supply pipe 71 that communicates with the second gas injection port 22, and a switching valve 73, such as a solenoid valve or hydraulic control valve, provided in the second gas supply pipe 71 for switching whether or not gas is injected by the second nozzle 20. The gas supplied by the second gas supply means 70 may be the same as or different from the gas supplied by the first gas supply means 60.

[0022] The feeding mechanism 80 includes a support roller 81 that supports the strip-shaped base material AB, a guide roller 82 that guides the base material AB, and a recovery roller 84 that is supported on the output shaft of a rotary motor 83 which is a drive device, and which constantly applies a predetermined tension to the base material AB and recovers the base material AB while the raw material manufacturing device EA1 is in automatic operation.

[0023] The drying means 90 includes a heating means 91 such as an infrared heater or a coil heater.

[0024] The operation of the raw material manufacturing apparatus EA1, which is equipped with the two-liquid mixing spray device EA described above, will now be explained. First, the user of the raw material manufacturing apparatus EA1 (hereinafter simply referred to as "user") sets the base material AB as shown in the figure, with each component positioned in the initial position shown by the solid line in Figure 1(A). Then, a signal to start automatic operation is input via an operating means such as an operation panel or personal computer (not shown). The first coating liquid supply means 40, the second coating liquid supply means 50, the first gas supply means 60, and the second gas supply means 70 then drive their respective pressurizing means 42, 52, 62, and 72, and while the raw material manufacturing apparatus EA1 is operating automatically, they supply the main agent, hardener, and gas to the supply pipes 41, 51, 61, and 71 to maintain their respective pressures.

[0025] Next, the dispensing means 80 drives the rotating motor 83, and when the substrate AB is dispensed to a predetermined length, the driving of the rotating motor 83 is stopped. Subsequently, the control means 30 drives the switching valves 53 and 73 via the second coating liquid supply means 50 and the second gas supply means 70 to spray the hardener and gas from the second nozzle 20 before spraying the main agent from the first nozzle 10. This allows the hardener to disperse without being obstructed by the main agent, promoting the dispersion of the hardener. Next, before the hardener reaches the coated surface AB1 of the substrate AB, the control means 30 drives the switching valves 43 and 63 via the first coating liquid supply means 40 and the first gas supply means 60 to spray the main agent and gas from the first nozzle 10. The main agent and hardener are then atomized and dispersed by the gas sprayed together with them, mixed in the air, and applied to the respective coated areas PA1 and PA2 on the coated surface AB1, as shown in Figure 1(B). Note that in Figure 1(B), the outer edges of the main agent application area PA1 and the hardener application area PA2 are offset to make them easier to distinguish, but in reality, the main agent and hardener are sprayed so that both application areas PA1 and PA2 coincide.

[0026] Once the application of the main agent and hardener to the surface to be coated AB1 is complete and a coating film CL consisting of the main agent and hardener is formed, the dispensing means 80 drives the rotating motor 83 to dispensing the substrate AB to a predetermined length, and then stops driving the rotating motor 83. Next, the drying means 90 drives the heating means 91 to heat the coating film CL on the surface to be coated AB1 to dry the main agent and hardener. As a result, the substrate becomes a raw material with a coating film CL formed on the surface to be coated AB1, and the same operation as above is repeated thereafter.

[0027] According to the above embodiment, since the hardener is sprayed into the second nozzle 20 before the main component is sprayed into the first nozzle 10, the hardener is dispersed without being obstructed by the main component. As a result, the dispersion of the hardener relative to the main component is promoted, and uneven mixing of the coating liquid can be suppressed.

[0028] [Second Embodiment] In this embodiment, as shown in Figures 2(A) to (F), the overall configuration and arrangement of the two-liquid mixing spray device EA and the raw material manufacturing device EA1, as well as the control by the control means 30, are the same as in the first embodiment, but the configuration of the second nozzle 20A differs from that of the first embodiment.

[0029] As shown in Figures 2(E) and (F), the inclination angle θ2 of the second gas injection port 22A relative to the second coating liquid injection port 21 of the second nozzle 20A is greater than the inclination angle θ1 of the first gas injection port 12 relative to the first coating liquid injection port 11. Therefore, the gas injected from the second gas injection port 22A collides with the hardener at a steeper angle compared to the first nozzle 10.

[0030] The control means 30 sprays the hardening agent into the second nozzle 20A before spraying the main agent into the first nozzle 10.

[0031] According to the embodiment described above, the inclination angle θ2 of the second gas injection port 22A relative to the second coating liquid injection port 21 is greater than the inclination angle θ1 of the first gas injection port 12 relative to the first coating liquid injection port 11. As a result, the gas injected from the second gas injection port 22A collides with the curing agent at a steep angle. Therefore, the dispersion of the curing agent relative to the main agent is further promoted, and uneven mixing of the coating liquid can be suppressed.

[0032] [Third Embodiment] In this embodiment, as shown in Figures 3(A) to 3(F), the arrangement of the second nozzle 20 differs from that of the first embodiment.

[0033] As shown in Figures 3(A) and (B), the second nozzle 20 is positioned further away from the surface to be coated AB1 than the first nozzle 10, above the position of the first nozzle 10 with respect to the surface to be coated AB1, and aligned with the first nozzle 10 in the front-to-back direction.

[0034] Furthermore, the control means 30 sprays the hardening agent into the second nozzle 20 before spraying the main agent into the first nozzle 10.

[0035] According to the embodiment described above, the second nozzle 20 is positioned further away from the surface to be coated AB1 than the first nozzle 10, so the distance from the second nozzle 20 to the surface to be coated AB1 is increased. As a result, the dispersion of the curing agent is further promoted before it reaches the surface to be coated AB1, and uneven mixing of the coating liquid can be suppressed.

[0036] [Fourth Embodiment] In this embodiment, as shown in Figures 4(A) to 4(F), a plurality of second nozzles 20 are provided, and the number and arrangement of the second nozzles 20 differ from those of the first embodiment.

[0037] As shown in Figures 4(A) and (B), the multiple second nozzles 20 are arranged such that the curing agent application areas PA2 on the surface to be coated AB1 overlap with the main agent application area PA1 by the first nozzle 10. This promotes the dispersion of the curing agent in the main agent application area PA1.

[0038] Furthermore, the control means 30 sprays the hardening agent into the second nozzle 20 before spraying the main agent into the first nozzle 10.

[0039] According to the embodiment described above, since the multiple second nozzles 20 are arranged such that the coating area PA2 of the curing agent by the second nozzle 20 overlaps with the coating area PA1 of the main agent by the first nozzle 10, the dispersion of the curing agent relative to the main agent is further promoted, and uneven mixing of the coating liquid can be suppressed.

[0040] As described above, the best configurations, methods, etc., for carrying out the present invention are disclosed in the above description, but the present invention is not limited thereto. That is, although the present invention is mainly illustrated and described in relation to specific embodiments, those skilled in the art can make various modifications to the embodiments described above in terms of shape, material, quantity, and other detailed configurations without departing from the scope of the technical idea and objectives of the present invention. Furthermore, the descriptions of shapes, materials, etc. disclosed above are illustrative to facilitate understanding of the present invention and do not limit the present invention, so descriptions of components with some or all of those limitations removed are included in the present invention.

[0041] For example, the shapes of the coating liquid injection holes 11, 21, the gas injection holes 12, 22, 22A, and the injection nozzles 14, 15, 24, 25 may be formed to match the shapes of the coating areas PA1, PA2. For example, as shown in Figures 5(A) and (B), if the coating areas PA1 and PA2 are elliptical, then as shown in Figures 5(C) to (F), the first nozzle 10B may include a first coating liquid injection hole 11B having an elliptical injection nozzle 14B and a first gas injection hole 12B having an elliptical annular injection nozzle 15B, and the second nozzle 20B may include a second coating liquid injection hole 21B having an elliptical injection nozzle 24B and a second gas injection hole 22B having an elliptical annular injection nozzle 25B. Furthermore, as shown in Figures 6(A) and (B), when the coating areas PA1 and PA2 are rectangular, the first nozzle 10C may be provided with a first coating liquid injection hole 11C having a rectangular injection opening 14C and a first gas injection hole 12C having a rectangular injection opening 15C, as shown in Figures 6(C) to (F), and the second nozzle 20C may be provided with a second coating liquid injection hole 21C having a rectangular injection opening 24C and a second gas injection hole 22C having a rectangular injection opening 25C. Furthermore, as shown in Figures 7(A) and (B), if the coating areas PA1 and PA2 are annular, the first nozzle 10D may include a first coating liquid injection hole 11D having an annular injection port 14D and a first gas injection hole 12D having double annular injection ports 15D and 16D formed concentrically with the injection port 14D, and the second nozzle 20D may include a second coating liquid injection hole 21D having an annular injection port 24D and a second gas injection hole 22D having double annular injection ports 25D and 26D formed concentrically with the injection port 24D. The first nozzles 10, 10B, 10C, 10D and the second nozzles 20, 20A, 20B, 20C, 20D may be provided separately from each other or as a single unit. The first nozzles 10, 10B, 10C and the second nozzles 20, 20A, 20B, 20C may or may not have recesses 13, 23. Similar to the second nozzle 20A, the inclination angle θ2 of the second gas injection holes 22B, 22C, 22D relative to the second liquid injection holes 21B, 21C, 21D may be greater than the inclination angle θ1 of the first gas injection holes 12B, 12C, 12D relative to the first liquid injection holes 11B, 11C, 11D. The first gas injection holes 12, 12B, 12C, and 12D may be inclined from the base end to the tip end of the first nozzles 10, 10B, 10C, and 10D toward the first coating liquid injection holes 11, 11B, 11C, and 11D, and the second gas injection holes 22, 22A, 22B, 22C, and 22D may be inclined from the base end to the tip end of the second nozzles 20, 20A, 20B, 20C, and 20D toward the second coating liquid injection holes 21, 21B, 21C, and 21D. The first gas injection holes 12, 12B, 12D and the second gas injection holes 22, 22A, 22B, 22D do not have to be annular in shape surrounding the corresponding coating liquid injection holes 11, 11B, 11D, 21, 21B, 21D. For example, they may consist of a plurality of injection holes arranged in a line surrounding the corresponding coating liquid injection holes 11, 11B, 11D, 21, 21B, 21D. The gas injected from the first gas injection ports 12, 12B, 12C, and 12D may be the same as the gas injected from the second gas injection ports 22, 22A, 22B, 22C, and 22D, or they may be different.

[0042] The first coating liquid supply means 40 and the second coating liquid supply means 50 may or may not be provided in the two-component mixing spray device EA or the raw material manufacturing device EA1. If they are not provided, the first coating liquid and the second coating liquid may be supplied by other devices. The switching valve 43 may be built into the first nozzles 10, 10B, 10C, and 10D, and the switching valve 53 may be built into the second nozzles 20, 20A, 20B, 20C, and 20D.

[0043] The first gas supply means 60 and the second gas supply means 70 may or may not be provided in the two-liquid mixing injection device EA or the raw material manufacturing device EA1, and if they are not provided, the gas may be supplied by other devices. The gas supplied by the first gas supply means 60 and the gas supplied by the second gas supply means 70 may be the same or different. If they are different, the gas may be supplied to the first gas injection port 12 and the second gas injection port 22 from one of the first gas supply means 60 and the second gas supply means 70, and the other gas supply means 60 and the second gas supply means 70 may not be provided. In other words, gas may be supplied to both the first gas injection port 12 and the second gas injection port 22 from a single gas supply means. The switching valve 63 may be built into the first nozzles 10, 10B, 10C, and 10D, and the switching valve 73 may be built into the second nozzles 20, 20A, 20B, 20C, and 20D.

[0044] The feeding means 80 may feed out sheet substrate AB, or it may support or guide the substrate AB with plate-shaped members or shaft members instead of rollers such as support rollers 81 and guide rollers 82, or it may support the substrate AB by folding it in a fanfold manner without winding it, or it may employ a collection means to collect the substrate AB by folding it in a fanfold manner, shredding it with a shredder, or haphazardly accumulating it without winding it, or it may not employ a collection means at all. The dispensing means 80 may or may not be provided in the two-liquid mixing spray device EA or the raw material manufacturing device EA1. If it is not provided, the base material AB may be dispensed or recovered by other devices.

[0045] The drying means 90 may include a supply means such as a pressurized pump or turbine that supplies heated air or gas heated by the heating means 91, and a spraying means such as a spraying pipe or nozzle connected to the supply means via piping for spraying the heated gas, thereby drying the main agent and hardener by spraying the heated gas onto the coating film CL on the surface AB1 to be coated. The heating means 91 is not particularly limited and may, for example, be the heating side of a heat pipe.

[0046] The two-component mixing spray device EA comprises a plurality of first nozzles 10, 10B, 10C, 10D and a plurality of second nozzles 20, 20A, 20B, 20C, 20D, and may mix the main component sprayed from the plurality of first nozzles 10, 10B, 10C, 10D with the hardener sprayed from the plurality of second nozzles 20, 20A, 20B, 20C, 20D. For example, the first nozzles 10, 10B, 10C, 10D and the second nozzles 20, 20A, 20B, 20C, 20D may be arranged alternately along an annular imaginary line. In this case, the shape and number of the ring-shaped virtual lines, and the number of the first nozzles 10, 10B, 10C, 10D and the second nozzles 20, 20A, 20B, 20C, 20D, can be set according to the shape and size of the final coating area PA3 of the main agent and hardener on the surface AB1 to be coated, as shown in Figures 8 and 9. For example, the virtual lines may be circular, elliptical, or oblong rings, or polygonal rings such as triangles, rectangles, or polygons with five or more sides. One virtual line may be set, or multiple virtual lines may be set. For example, as shown in Figure 8, if the final coating area PA3 is circular, the first nozzles 10 and 20 may be alternately arranged along the inner virtual line VL1 of the multiple concentric virtual lines VL1 and VL2, and the first nozzles 10B and 20B may be alternately arranged along the outer virtual line VL2. Furthermore, as shown in Figure 9, if the final coating area PA3 is annular, the first nozzle 10B and the second nozzle 20B may be arranged alternately along the circular imaginary line VL2. The two-component mixture spray device EA may be equipped with any or more of the first nozzles 10B, 10C, and 10D in place of or in combination with the first nozzle 10, or may be equipped with any or more of the second nozzles 20A, 20B, 20C, and 20D in place of or in combination with the second nozzle 20. The two-component injection device EA may be configured to drive the switching valves 43, 53, 63, and 73 by a lever, button, or the like, instead of or in combination with the control means 30. The two-component mixing spray device EA and the raw material manufacturing device EA1 may be equipped with a table having a support surface that can be held by adsorption using a depressurization means (holding means) not shown, such as a depressurization pump or a vacuum ejector, and the main agent and curing agent may be sprayed onto the surface AB1 of the substrate AB supported on the support surface of the table.

[0047] The type, category, and composition of the first and second coating liquids are not particularly limited. For example, the first coating liquid may be the main component of a release agent such as silicone, the main component of a paint, or an intermediate liquid other than a main component. The second coating liquid may be a curing agent for a release agent such as silicone, a catalyst or reaction initiator, a curing agent for a paint, or an intermediate liquid other than a curing agent. It should be noted that the amount of catalysts, reaction initiators, and curing agents added is generally small, around 0.001 to 10 parts by mass per 100 parts by mass of the main component, and it has been difficult to mix them uniformly in the past. In contrast, according to the present invention, even if the amount of the second liquid added to the first coating liquid is small, the first and second coating liquids can be uniformly mixed and applied.

[0048] The material, type, shape, etc., of the substrate AB and the coating CL are not particularly limited. For example, the substrate AB and the coating CL may be circular, elliptical, polygonal (triangle, square, etc.), or other shapes. The substrate AB may be, for example, a single object such as food, a resin container, a semiconductor wafer such as a silicon semiconductor wafer or a compound semiconductor wafer, a circuit board, an information recording substrate such as an optical disc, a glass plate, a steel plate, a ceramic, a wooden board, or a resin, or a film, paper, or a sheet, or a composite made of two or more of the above, or a composite such as a release film or release paper, and any form of component or article can also be included. The coating CL may be an adhesive layer or bonding layer, a coating film such as a print-receiving layer, a hard coat layer, or a release layer, or another form such as a photoresist.

[0049] The means and processes in this invention are not limited in any way as long as they can perform the operations, functions, or processes described for those means and processes, and are certainly not limited at all to the components or processes of just one embodiment shown in the above-mentioned embodiments. For example, the first nozzle can be anything that can spray the first coating liquid, and is not limited in any way as long as it is within the scope of the common technical knowledge at the time of filing (the same applies to other means and processes).

[0050] The drive equipment in the above embodiment can be electric equipment such as rotary motors, linear motors, single-axis robots, articulated robots with two or more axes, actuators such as air cylinders, hydraulic cylinders, rodless cylinders, and rotary cylinders, or a combination of these directly or indirectly. In the above embodiment, if a rotating member such as a roller is used, a drive device for rotating the rotating member may be provided, the surface of the rotating member or the rotating member itself may be made of a deformable material such as rubber or resin, the surface of the rotating member or the rotating member itself may be made of a non-deformable material, other members such as rotating or non-rotating shafts or blades may be used instead of rollers, and if a support (holding) means or support (holding) member or other means for supporting (holding) the supported member (held member) is used, a configuration may be adopted in which the supported member is supported (held) by gripping means such as a mechanical chuck or chuck cylinder, Coulomb force, adhesive (adhesive sheet, adhesive tape), adhesive agent (adhesive sheet, adhesive tape), magnetic force, Bernoulli adsorption, suction adsorption, drive device, etc. [Explanation of symbols]

[0051] EA…Two-component mixing injection device 10…First nozzle 11...First coating liquid injection hole 12…First gas injection nozzle 20...Second nozzle 21…Second coating liquid injection hole 22...Second gas injection nozzle 30... Control means AB1…coated surface PA1…Coating Field PA2…Coating Field θ1… Inclination angle θ2… Inclination angle

Claims

1. A two-component mixing spray device that sprays a first coating liquid and a second coating liquid, mixes the first coating liquid and the second coating liquid, and applies them to a surface to be coated, A first nozzle for spraying the first coating liquid, A second nozzle for spraying the second coating liquid, The system includes control means for controlling the injection of the first nozzle and the second nozzle, The first nozzle comprises a first coating liquid injection hole that opens at the tip of the first nozzle and sprays the first coating liquid, and a first gas injection hole that opens at the tip of the first nozzle and sprays gas. The second nozzle comprises a second coating liquid injection hole that opens at the tip of the second nozzle and sprays the second coating liquid, and a second gas injection hole that opens at the tip of the second nozzle and sprays gas. Of the first gas injection port and the second gas injection port, at least the second gas injection port is inclined toward the corresponding coating injection port among the first and second coating injection ports. The inclination angle of the second gas injection port relative to the second coating liquid injection port is greater than the inclination angle of the first gas injection port relative to the first coating liquid injection port. The control means is characterized by spraying the second coating liquid into the second nozzle before spraying the first coating liquid into the first nozzle, thus forming a two-liquid mixing spraying device.

2. The two-liquid mixing spray device according to claim 1, characterized in that the second nozzle is positioned further away from the surface to be coated than the first nozzle.

3. Equipped with multiple second nozzles, The two-liquid mixing spray device according to claim 1, characterized in that the plurality of second nozzles are arranged such that the application areas of the second coating liquid by each of them on the surface to be coated overlap with the application area of ​​the first coating liquid by the first nozzle.

4. A two-component mixing spraying method comprising spraying a first coating liquid and a second coating liquid, mixing the first coating liquid and the second coating liquid, and applying them to a surface to be coated, A first coating liquid spraying step in which the first coating liquid is sprayed from the first nozzle, A second coating liquid spraying step in which the second coating liquid is sprayed using a second nozzle, A control step is performed to control the injection from the first nozzle and the second nozzle. The first nozzle comprises a first coating liquid injection hole that opens at the tip of the first nozzle and sprays the first coating liquid, and a first gas injection hole that opens at the tip of the first nozzle and sprays gas. The second nozzle comprises a second coating liquid injection hole that opens at the tip of the second nozzle and sprays the second coating liquid, and a second gas injection hole that opens at the tip of the second nozzle and sprays gas. Of the first gas injection port and the second gas injection port, at least the second gas injection port is inclined toward the corresponding coating injection port among the first and second coating injection ports. The inclination angle of the second gas injection port relative to the second coating liquid injection port is greater than the inclination angle of the first gas injection port relative to the first coating liquid injection port. The control step is characterized in that the second coating liquid is sprayed into the second nozzle before the first coating liquid is sprayed into the first nozzle, in a two-liquid mixed spraying method.

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