JPH02207867A - Coating device - Google Patents

Abstract

PURPOSE:To automatically and efficiently coat a coating surface with an FRP layer without requiring manpower by equipping a self-traveling type truck with the pressing rolls which press a coating material consisting of a liquid resin and fibrous reinforcing material. CONSTITUTION:The coating material C consisting of the liquid thermosetting resin P supplied on a coating surface L1 and the fibrous reinforcing material (glass fibers G) is pressed by the pressing rolls 4 as the self-traveling type truck 2 travels. The liquid resin P is impregnated in the fibers G and is defoamed and cured by the pressing rolls 4. As a result, both of the stage for supplying the coating material C to the coating surface L1 and the stage for pressing the coating material to impregnate and defoam the material are automatically executed without requiring the manpower, by which the working time is shortened and the number of workers is reduced. The number of parts decreases if the pressing rolls are functioned as the wheels of the self-traveling type truck.

Description

[Detailed description of the invention]

[Industrial Field of Application J] The present invention mainly applies a coating material made of FRP, for example, to the foundation of a civil engineering building, such as concrete, which forms the rooftop or floor of a building, or the deck of a viaduct. The present invention relates to a coating device used when coating the surface of the substrate. [Conventional Technology J] P Rp (Fiber Re1m-1/r
ced f'l*5tics (reinforced glass fiber reinforced with glass fiber) is molded to a predetermined thickness and coated (
coating), and its construction is usually F.
RP molding casting method is carried out according to the general hand lay-up method or spray-up method. According to the hand lay-up method, glass fibers in the form of a mat or a-pin cloth are spread on the base, a liquid thermosetting resin (unsaturated polyester, etc.) is supplied on top of the base, and both materials are The resin is sufficiently soaked into the glass fiber by rolling it while pressing with a roll, etc. (
(impregnation) and remove the air bubbles present inside (defoaming), and then mold the FRP layer. In addition, according to the spray-up method, roving cloth is cut and tied with a chipoput strand I;
After each of the liquid thermosetting resins is sprayed onto the substrate using a sugray device, the FRP layer is formed by impregnating and defoaming in the same manner. As mentioned above, each of these methods includes a step of supplying a coating material of glass fiber and liquid thermosetting resin onto the substrate, and an impregnation/defoaming step of impregnating the glass fiber with the liquid thermosetting resin and removing air bubbles. It is divided into two parts,
In the hand lay-up method, both processes are done manually, and in the spray-up method, the coating material supply process is mechanized. In particular, the post-process impregnation/defoaming process is important because if the removal of air bubbles is insufficient, the FRP layer will not be able to perform its various functions, and in each method, this process is performed manually. Therefore, it is done carefully.

[Problem to be solved by the invention]

In each of the above methods, the hand lay-up method is extremely inefficient, especially when dealing with large-area substrates, as both processes are done manually, and requires an increase in the number of workers. There is a possibility that the function of the FRP layer may be influenced by the skill of the worker. Even in the spray-up method in which the coating material supply process is mechanized, when viewed as a whole, it cannot be expected to significantly shorten the working time compared to the hand lay-up method. Furthermore, in any case, if the base is made of concrete or the like and has an uneven surface, there is a problem in that it is difficult to remove air bubbles and the work takes a long time. In this way, conventionally, when covering the FRP layer on the base, work efficiency was low because it was mainly done manually.
Therefore, there has been a desire to develop an apparatus that can automatically and efficiently coat an FRP layer on a substrate without requiring human intervention. [Means for Solving the Problems] The present invention has been made based on such a demand, and the first invention is to provide a self-propelled trolley that runs on a surface to be coated with a supply device to the surface to be coated. It is characterized by being equipped with a press roll that presses a coating material made of a liquid resin and a fibrous reinforcing material.
A second invention provides a coating material supply mechanism for supplying a coating material made of a liquid resin and a fibrous reinforcing material to the surface to be coated, to a self-propelled trolley that travels on the surface to be coated; The present invention is characterized in that it is equipped with a press roll that presses the coating material supplied to the surface to be coated by a mechanism. Further, in addition to the above invention, as a third invention, the pressure roll is equipped on the self-propelled truck as a traveling wheel, and a large number of recesses are formed on the outer peripheral surface of the pressure roll. In particular, the self-propelled trolley is equipped with a plurality of pressure rolls, each of which has a plurality of recesses formed on its outer circumferential surface and a flexible sheet-like fiber wound around its outer circumferential surface. This includes combinations with press rolls. [Operation 1] According to the coating apparatus of the present invention, the coating material made of liquid resin and fibrous reinforcing material supplied onto the coating surface is pressed by the press roll as the self-propelled trolley runs. At this time, the reinforcing material is impregnated with liquid resin and defoamed. Thereafter, by curing the liquid resin, a coating material is formed on the coated surface. Furthermore, if the self-propelled trolley is equipped with a coating material supply mechanism, the coating material can be automatically supplied to the coating surface. As a result, both the process of supplying the coating material consisting of liquid resin and reinforcing material to the coating surface, and the process of impregnating and degassing it by pressing it can be done automatically without the need for human intervention. As a result, the working time and the number of workers can be reduced. Moreover, if the pressure rolls also function as wheels of a self-propelled truck, the number of parts will be reduced and the cost will be reduced. Furthermore, by forming recesses on the surface of the pressure roll, the defoaming effect becomes extremely good.Additionally, by combining this with a pressure roll wound with sheet-like fibers, the spreading effect of the coating material is improved. do.

【Example】

First Embodiment (FIGS. 1 to 7) The first embodiment described below is based on claim 1.3 of the present invention.
4 and 5. In FIG. 1, reference numerals indicate bases on which the coating material C is to be applied, such as the rooftops of buildings, indoor floors, or the deck slabs of elevated bridges. In this case, the coating material C is FRP made of liquid thermosetting resin P and glass fiber G (fibrous reinforcing material).
It is. The foundation is made of cement concrete, asphalt concrete, PC (prestressed concrete) board, plastic, wood, metal, etc., or a composite thereof. Reference numeral 1 denotes a coating apparatus of this embodiment that forms the FRP layer C3 on the coating surface. The coating apparatus l is configured as a self-propelled trolley (hereinafter simply referred to as a trolley) 2, and includes a box-shaped trolley body 3 and a plurality of rollers (
In this case, it is composed of three pressure rolls 4, and a motor 5 such as an L-sized motor installed inside the truck body 3 and causing the truck body 3 to run on the coating surface. A plurality of pairs of left and right legs 6 extending downward are attached to the side portions of the truck body 3 (in this case, three sets corresponding to the pressure coolants), and each pair of legs 6 is attached to the pressure coolant. The rolls 4 are perpendicular to the traveling direction (leftward in FIG. 1) of the truck body 3 and are each attached rotatably around an axis. By the way, there are two types of pressure rolls 4, a pressure roll 4a shown in FIG. 2(a) and a pressure roll 4b shown in FIG. The book is a pressure roll 4a, the rear side is a pressure roll 4
It is a combination such as b. Note that this combination order is an example, and the front one is the pressure roll 4b,
Any combination may be used, such as the other two being the pressure rolls 4a, the front and center being the pressure rolls 4b, and the rear one being the pressure roll 4a. , and the number of pressure rolls 4a and 4b is one or more each,
It may be set to any number within an appropriate range. The press roll 4a has a cylindrical roll main body 7 with shafts 7a protruding from both end faces, and a mesh 8 in which a diamond-shaped lattice is formed by elongated wire-like rods 8a as shown in FIG. 2(b) on the outer peripheral surface of the roll body 7. It is made by winding and fixing. As a result, a large number of diamond-shaped recesses 9 of a constant size are formed on the outer circumferential surface of the press roll 4a. Note that the number of turns of the net 8 is preferably two or more. The net 8 is swollen and swelled by liquid resin, cleaning organic solvent, etc.
It is preferably made of non-erodible thermoplastic plastic (polyethylene, polypropylene, polyester, polyamide, etc.) or metal, and its hardness is preferably lower than that of the material forming the base. Note that the recess 9 can be formed by cutting the outer circumferential surface of the roll body 7, by molding at the same time as the roll is created, by wrapping a metal or plastic plate with the recess 9 formed on the outer circumferential surface by pressing, etc., around the roll body 7, or by wrapping the recess 9 around the roll body 7. It can also be formed by a method such as inserting the roll blank 7 into the inside of a tube in which a hole is formed. However, from the viewpoint of ease of manufacture and repair of the pressure roll 4a and low cost, it is best to form the recesses 9 by wrapping the net 8 around the roll body 7 as described above. Furthermore, Fig. 2(c)
A net 8' using meandering rods 8a' may also be used, as shown in FIG. Further, the rods 8a of the net 8 forming the recesses 9 are fixed to the roll body 7 to form the protrusions 10, and the height (thickness) thereof is 1 (+++a1 or more, preferably 2 to 3
0. □, that is, the depth of the recess 9 is l (,,1 or more, preferably 2 to 30
□□). Furthermore, the ratio of the recessed portion 9 to the circumferential surface of the pressure roll 4a is 10 to 90 (%), preferably 30 to 8
It is set to 0 (%). The material of the roll body 7 is iron, aluminum, stainless steel, rope, wood, plastic, etc., or a combination of these materials, and if a predetermined weight can be secured, the inside is hollow. It can be anything. The pressure roll 4b has an outer circumferential surface of the roll body 7,
It is made by winding flexible sheet-like fibers 11. As the sheet-like fiber 11, mohair, pig hair, woolen fabric, etc. are used. In addition to these, we also offer cotton, hemp, rayon, acetate, nylon, polyester, spandex (polyurethane fabric), vinylon, acrylic, polypropylene,
Glass fiber or the like may also be used. As shown in FIG. 4(a), each of the press rolls 4 (4a, 4b) has a shaft 7a on both end faces thereof, which is connected to the leg portion 6 via a bottle so as to be able to swing up and down, or to a link 12. It is installed. The link 12 has a half-moon-shaped bearing hole 13 larger than the cross-sectional area of the shaft 7a on the free end side, and the shaft 7a of the press roll 4 is loosely fitted into the bearing hole 13. Thereby, the press roll 4 can move up and down together with the link 12, and can move to a certain extent independently of the movement of the link 12. The motor 5 is operatively connected to the pressure roll 4b#, and rotates the pressure roll 4b to drive the carriage 2.
Propel yourself forward. That is, the press roll 4b functions as a driving wheel, each press roll 4a functions as a driven wheel, and each functions as a traveling wheel of the truck 2. Activation $15 includes cable 1 connected to a power source (not shown)
4 is electrically connected, and the motor 5 is operated and controlled by a switch 15 provided in the middle of this cable 14, so that the traveling direction (forward/reverse) and speed of the trolley 2 can be remotely controlled. It has become. The operation of the trolley 2 can be controlled by having a receiving device mounted on the main body 3 of the trolley 3 as well as a battery, and using a transmitting device that is paired with the receiving device to enable remote control without the need for the cable 14. You can. Furthermore, the motor 5 may be connected to all three press rolls 4, or may be connected to two. Note that a manual handle 16 is attached to the rear of the truck body 3. Among the above-mentioned press rolls 4, the press roll 4a having a large number of recesses 9 formed on its outer circumferential surface has a coating surface, and the liquid thermosetting resin P and glass fiber G supplied thereon are coated.
Pressing by rolling as the trolley 2 runs,
Glass fibers G are sufficiently impregnated with liquid thermosetting resin P, and air bubbles existing inside are defoamed. Further, a press roll 4b having sheet-like fibers 11 wound around the outer circumferential surface is provided with a coating material C after each press roll 4a.
Coating material C
Press down to spread it evenly. By the way, the pressing force of these press rolls 4a and 4b on the coating material C is determined by each element constituting the cart 2, that is, the cart main body 3 having the handle 16, the motor 5, the legs 6, and the press rolls 4a10-4b. be yourself,
The pressure roll 4a prevents the total weight from sinking into the liquid thermosetting resin P and squeezing out the resin WIP, and the pressure roll 4b applies appropriate pressure to spread the coating material C. is set to join. A method of forming an FRP layer P+ by coating the coating material C on the coated surface of the substrate using the coating apparatus 1 having the above-mentioned configuration will be explained in order. ■First, prepare the surface of coating surface L1 as necessary.
Perform primer treatment. This treatment is usually performed when the base is made of a solid material such as concrete or metal, and the primers used include liquid temperature air curing urethane primer, bisphenol A epoxy/polyamine glimer, and unsaturated polyester. type primers, etc. are used. (2) Next, liquid thermosetting resin P and glass fiber G are uniformly supplied onto the coating surface. In this embodiment, as described above, glass fiber G is used as a reinforcing material for FRP, but other materials such as carbon fiber and aramid fiber (manufactured by DuPont) are used. Moreover, examples of the shape include a stimulated strand, a mat, a roving, a roving cloth, and the like. Moreover, as the above-mentioned liquid thermosetting resin P, unsaturated polyester resin is mainly used, and in addition to this, epoxy resin, phenol resin, vinyl ester resin, etc. are used. When unsaturated polyester is used, a peroxide is used as the catalyst, and a metal salt, amine, etc. are used as the curing accelerator. Furthermore, the viscosity of the liquid thermosetting resin P is important from the viewpoint of impregnation into the glass fiber G, dripping phenomenon, etc. That is, if the viscosity is too low, the FRP FI Cr to be molded tends to whiten or sag, while if the viscosity is too high, impregnability is poor and molding becomes difficult. From this point of view, the viscosity of the liquid thermosetting resin is 0.5
A suitable value is 1.0 to 1 s poise/25°C, more preferably 2 to 10 voids/°C. Here, the glass fiber G is Supply an amount of 10 to ■ weight (%), preferably 15 to 60 weight (%), more preferably 20 to 50 weight (%) in FRP jllC after molding. ■ Liquid thermosetting resin P and glass The coating device 1 is set on the coated surface to which the fibers G have been supplied, with the direction of movement determined, and the motor 5 is activated by the switch 15 to move the trolley 2 forward at an appropriate constant speed. Along with this, each pressure roll 4a and pressure roll 4b are applied on the liquid thermosetting resin P and the glass fiber G.
The person was transferred while applying appropriate pressure. In each press roll 4a, the rods 8a constituting the net 8 having a high surface pressure on the outer peripheral surface, that is, the convex portions 10, press the glass fibers G, thereby causing the liquid thermosetting resin P to be applied to the glass fibers. It is fully impregnated with G. When the liquid thermosetting resin P contains air bubbles, the convex portion 10 pushes the air bubbles into the recessed portion 9 on both sides or one side of which the surface pressure is low, and the air bubbles escape from there. In other words, since the outer circumferential surface of the pressure roll 4a is constituted by the convex portion lO with a large surface pressure against the liquid thermosetting resin P and the small concave portion 9, the convex portion lO with a large surface pressure ,
The air bubbles are moved to the side of the recess 9 where the surface pressure is lower, and then escape. Therefore, even if the coating surface is uneven, bubbles can be easily removed and the defoaming operation can be accomplished very effectively. In addition, in the press roll 4b, impregnation and
By rolling on the degassed coating material C, the coating material C is uniformly spread. Coat truck 2 as described above. By running the coating material C over the entire surface, the glass fibers G are impregnated with the liquid thermosetting resin P, the bubbles are removed, and the coating material C is uniformly spread.
It is applied on the coating surface Lt. Note that after this, the liquid thermosetting resin P is appropriately heated to be cured, and finally FRpmc is molded. As a result, the base surface is coated with FRPIIP. As described above, according to the coating device fil of this embodiment, the liquid thermosetting resin P and glass fiber G supplied above the coating surface are pressed to impregnate and defoam, and are uniformly spread. Since the following steps can be automatically performed by a single operator operating the switch 15, the working time and the number of workers can be reduced. As a result, even if the coating surface L1 of the substrate is large, the coating work of the FRP layer CI can be performed efficiently without increasing the number of workers. Since a constant pressing force always acts on , the FRP layer C1 after molding exhibits its function evenly and uniformly. Further, the press rolls 4 (4a, 4b) themselves function as wheels, and also impregnate and defoam the coating material C. Therefore, there is no need to provide dedicated wheels on the truck body 3, and the number of parts is reduced, resulting in lower costs. Slowly, the net 8 is placed on the roll body 7 on the press roll 4a.
If the net 8 is wound two or more times, the thickness of the net 8 increases and the elasticity increases, which improves the ability to absorb undulations when rolling on the coating material C and allows for smoother rolling. move. Note that in each pressure roll 4a, the front pressure roll 4
If the recess 9 of a is set larger than the rear recess 9, impregnation and defoaming can be carried out in stages, which is effective. Moreover, the concave portion 9 of the press roll 4a is not limited to the rhombus shape as described above, but may have various shapes as described below. As shown in FIG. 5(b), the outer circumferential surface of the pressure roll 4a shown in FIG.
A square recess 9 is formed by O. FIGS. 6(a) to 6(j) further show modified examples of the recessed portion 9 and the convex portion lO accompanying this. The recess 9 in FIG. 6 Ca) has a diamond shape with rounded corners, and the protrusion 10 is formed at a constant height. The concave portion 9 in FIG. 6(b) has a square shape, and the width of the convex portion 10 is the same as that of the pressure roll 4.
It is larger than a. The recess 9 in FIG. 6(c) has a honeycomb shape, the recess 9 in FIG. 6(d) has a circular shape, and the recess 9 in FIG.
The recess 9 in Figure (e) is Saturn-shaped with a circle in the center of the ellipse, the recess in Figure 6 (Cf') is elliptical, the recess 9 in Figure 6 (g) is triangular, and the recess 9 in Figure 6 (h ) has a triangular or square shape, which is not uniform in size and shape.
The recess 9 has a circular shape and a cross shape with a rounded tip.
Diagram (j) is an elongated oval. A large number of all the recesses 9 are formed on the entire outer circumferential surface of the pressure roll 4a. Note that they may not be formed on the entire outer circumferential surface of the pressure roll 4a, but may be formed at regular intervals in the circumferential direction or the axial direction. FIGS. 4(b) to 4(f) show modified examples of how the pressure roll 4 is attached to the leg portion 6. FIG. 4(b) shows the spring 1 attached to the leg 6.
The shaft of the press roll 4 is rotatably attached to the tip of the roll 7. In FIG. 4(c), a ring 18 is integrally formed at the tip of the leg 6, and the press roll 4 is loosely fitted into the ring 18. In FIG. 4(d), a pair of upper and lower springs 20 are attached to the mutually opposing surfaces of a pair of supports 19 fixed to the truck body 3, and the legs 6 fixed to the tips of these springs 20 are pressed. A roll 4 is rotatably mounted. Fourth
In Figure (e), a spring 21 is attached to the middle of the leg 6 so that it can expand and contract up and down. Figure 4 (fXf') is
A shaft 22 bent inward is provided at the tip of the leg 6, and this shaft 22
is loosely fitted into a bearing hole 23 larger than the shaft 22 formed at the center of both end faces of the roll body 7. The blending ratio of the coating material C in the above example is such that the glass fiber G is l1l- in the FRPjlC after molding.
10 weight (%), preferably 15 to 60 weight (%), more preferably 20 to 50 weight (%), but when the glass fiber G is 311 (%) or more, the coating material C
Since the overall viscosity becomes high, it becomes necessary to spread the coating material C particularly by the pressing force of the pressing roll 4b. That is, if the glass fiber G is less than 311 (%), the pressure roll 4b may not be attached to the trolley body 3, and all three pressure rolls 4a may be used. In such a case, as shown in the coating apparatus la of FIG. 7, the roll body 7 attached to each leg 6 is an endless belt-shaped body having the above-mentioned recesses formed on its outer peripheral surface. By winding the roll 24 of and pressing the coating material C while rolling it,
It may be configured to impregnate and defoam the coating material. Second Embodiment (FIGS. 8 to 11) Next, a second embodiment of the present invention will be described. This embodiment is based on claims 2.4 and 5 of the invention. In the figure, numeral 30 indicates the coating device of this embodiment, and the coating device 30 and the front wheels 31, 31, which are the steered wheels. and a box-shaped self-propelled truck (hereinafter simply referred to as a truck) 33 to which rear wheels 32 and 32 are attached, and a motor 34 such as a motor that causes the truck 33 to run on the coated surface LI of the base; A resin supply mechanism (coating bowl supply mechanism) 35 that supplies liquid thermosetting resin P onto the coating surface of the substrate, a glass fiber supply mechanism 36 that supplies glass fiber G onto the coating surface LI, and each of these. It is composed of the above-mentioned press roll 4 which has a coating surface and presses the liquid thermosetting resin P and glass fiber G supplied thereon by mechanisms 35 and 36 to impregnate and defoam them. The engine 34 is disposed in the front of the truck 33, that is, on the front wheels 31, 31 side (on the left in FIGS. 8 and 9), and is operatively connected to the front wheels 31, 31. By rotating the wheels 31 and 31, the trolley 33 is made to move forward by itself. Similar to the first embodiment, a remote control cable and a switch (none of which are shown) are connected to this trolley 33. The resin supply mechanism 35 is installed behind the motor 34 inside the truck 33. As shown in FIG.
According to 9.40, the resin is sent to the mixer 43 through each pipe 41 and 42, where the two are stirred and mixed, and if necessary, a curing accelerator is mixed in to create the final liquid thermosetting resin P. After that, the resin P is supplied by dropping it onto the coating surface from a rectangular supply port 44 connected to the mixer 43. The supply port 44 is provided at the bottom of the truck 33 along the width direction, and has a length such that the liquid thermosetting resin P supplied onto the coating surface L1 is stepped on by the rear wheels 32. It is set to no level. In addition, valves 45 and 46 for flow rate adjustment are provided in front of the mixer 43 in each of the resin-side and catalyst-side pipe lines 41 and 42, respectively. The glass fiber supply mechanism 36 is installed behind the resin supply machine 4% 35 inside the truck 33. As shown in FIG. 11, the glass fiber supply mechanism 36 includes a base 48 that is fixed to the bottom of the cart 33 and has an elongated rectangular supply port 47 in the center, and A pair of left and right main arms 49 are connected to the upper surface of the front (left side in the figure) so as to be freely rotatable back and forth, and a pair of left and right main arms 49 are rotatably connected to the ends of the main arms 49,
The sub-arm 51, which is biased toward the main arm 49 by the spring 50, and a pair of guide rolls 52, 53 provided on both arms 49, 51, are coupled to the base 48 via a bottle, and are used to move the main arm 49 forward and backward. a motor 55 fixed to the rear of the supply port 47 in the base 48; a pulley 57 rotated in the direction of arrow (A) by the motor 55 via a transmission belt 56; 57 and the guide roll 52 on the main arm 49 side to transmit the rotation of the pulley 57 to the guide roll 52;
2, a cutter roll 60 is rotatably supported by a support (not shown), and has blades 59 provided at equal intervals on its outer peripheral surface. According to this glass fiber supply mechanism 36, the sub arm 51
is slightly rotated against the force of the spring 50 to form a gap between both guide rolls 52 and 53, and the end of the cloth, roving cloth, or matted glass fiber G is drawn into this gap, and the sub-arm 51 is By separating them, the glass fiber G is sandwiched between both guide rolls 52 and 53. Next, the cylinder 54 is slightly retracted to form a gap between the guide roll 52 on the main arm 49 side and the cutter roll 60, and the end of the glass fiber G is drawn into this gap, and the cylinder 54 is returned to its original position. and cutter roll 60
The glass fiber G is sandwiched between the two. In this state, by driving the motor 55, the guide roll 52 on the main arm 49 side rotates via the pulley 57 and the transmission belt 58 so as to wind the glass fiber IIG between it and the cuck roll 60. Then, the glass fibers G passing between these rolls 52 and 60 are cut by a rotating cutter roll 60 into chip-shaped glass fibers, that is, chopped strands Gt, and are passed through the supply port 47 onto the liquid thermosetting resin P. It is supplied by dropping it on the surface. A frame 61 is attached to the rear part 1 of the truck 33 so as to be able to swing up and down. This frame 61 has 3ffi of a pair of left and right legs 62, and the press roll 4 is attached to each pair of legs 62 perpendicularly to the traveling direction of the truck 33 and rotatable around an axis. are installed on each. As in the first embodiment, these pressure rolls 4 are attached to each leg 62, and the front and middle two are the pressure rolls 4a, and the rear side is the pressure roll 4b. Further, the mounting method is according to one of the methods shown in FIG. 4 of the first embodiment. According to the coating device 30 of the present embodiment, the coating device 30 is set on the coating surface Lt with the traveling direction determined, and the motor 34 is operated to advance the trolley 33 at an appropriate constant speed while the resin is coated. The liquid thermosetting resin P is dropped onto the coating surface L1 from the supply mechanism 35, and chopped strands G are supplied onto the fallen liquid thermosetting resin P by the glass fiber supply mechanism 36. Since the speed of the truck 33 is constant, the liquid thermosetting resin P is supplied in the form of a belt with a constant thickness, and the chopped strands Gl are uniformly supplied thereon. Next, the frame 6 is placed over the coated surface and over the liquid thermosetting resin P and glass fiber G supplied above.
Each pressure roll 4a and pressure roll 4b attached to 1
are rolled while applying appropriate pressure, and thereby, the coating material C is coated on the coating surface and the FRP layer C3 is formed in the same way as in the first embodiment. According to the coating device R30 of this example, liquid thermosetting resin P and glass fiber G (chopped strand G
, ) onto the coating surface Ll is also automatically performed by each supply mechanism 35, 36, so that the first
Compared to the coating apparatus 1 of the embodiment, the working time and number of workers can be reduced. Third Embodiment (Twelfth Embodiment) FIG. 12 shows a $3 embodiment of the present invention, which is based on claims 2.3.4 and 5 of the present invention. In the coating device 70 of this embodiment, a plurality of (four in this case) pressure rolls 4 mounted on a truck 71 also function as wheels of the truck 71, as in the first embodiment. It is. In this case, four pressure rolls 4 are attached to the cart 71, of which three from the front are the pressure rolls 4a, and the rearmost one is the pressure roll 4b. The most forward pressing roll 4a is rotationally driven by a motor 72 installed in the truck 71, thereby causing the truck 71 to move forward. At the front inside the truck 71, the resin supply mechanism 35 and the glass fiber supply mechanism 36 described in the second embodiment are respectively disposed. According to this embodiment, when compared with the second embodiment, there is an advantage that there is no need to provide dedicated wheels to the trolley 71, the number of parts is reduced, and the cost is reduced. In the above-mentioned first to third implementations, the order in which the coating material C is supplied on the coating surface of the base is in the order of liquid thermosetting resin P1 glass fiber G (chopped strand G). However, this order may be reversed, or the two may be mixed in advance inside the disposed cart and supplied onto the coating surface Lt at the same time. In addition, in the second and third embodiments, liquid thermosetting resin P
Although the resin is simply dropped from the resin supply mechanism 35 onto the coating surface LI, it may also be supplied by spraying onto the coating surface L1 using a spray device. In this case, in order to prevent the atomized liquid thermosetting resin from scattering, a booth surrounding the l# fat supply@ff435 is provided, and as the resin supply mechanism 35 operates, the atomized resin, vapor, and It is a good idea to install a suction device to suck out odors. The suction device used is one in which a sirocco fan is provided coaxially with the air intake in an exhaust duct that has an air intake that communicates with the inside of the booth via a flexible hose. In this way, by operating the sirocco fan while spraying the liquid thermosetting resin onto the coating surface using the spray device, the atomized resin, steam, and odor that fill the booth can be removed. is discharged to the outside through the intake port, the 7 lexiple hose, and the exhaust duct. Therefore, the atomized liquid thermosetting resin, steam, and odor are not scattered, and it is not affected by wind, etc., so it is very useful especially when working outdoors. Further, in the second and third embodiments, the glass fiber supply mechanism 36 is configured to supply the chopped strands Gl obtained by cutting the glass fibers G onto the coating surface. The crossed glass fiber G is coated without being cut. It may also be configured as something that is spread over the top. [Effect of the Invention J As explained above, according to the coating apparatus of the present invention, manual labor is not required when impregnating and defoaming the coating material made of liquid resin and fibrous reinforcing material supplied to the coating surface. Furthermore, if the self-propelled trolley is equipped with a mechanism to supply the coating material to the coating surface, it will further improve the efficiency of the work.
It is possible to shorten working time and reduce the number of workers. This makes it especially useful when the coating surface is large.
In addition, since the pressure roll always applies a constant pressing force to the liquid resin, the coating material performs its function evenly and uniformly. Moreover, if the press a-ru functions as the wheel of a self-propelled trolley, the number of parts will be reduced and the cost will be reduced. Furthermore, if a recess is formed on the outer circumferential surface of the pressure roll, the defoaming effect will be extremely improved.Furthermore, if a pressure roll wound with a flexible fibrous sheet is combined,
The coating material is spread evenly and its functionality is fully demonstrated.

[Brief explanation of the drawing]

1 to 7 show a first embodiment of the present invention.
The figure is a side view, filZ diagram (a) is a perspective view of the press a-ru,
Fig. 2(b) is an enlarged plan view of the outer circumferential surface of the same press roll, Fig. 2(C) is a plan view showing a modified example of the net, Fig. 3 is a perspective view of another press roll, Fig. 4(a) ~(e) is a side view showing the attachment structure of the pressure roll to the leg, FIG. 4 (fXf')
5(a) is a perspective view showing a modified example of the pressing roll, FIG. 5(b) is an enlarged perspective view of the outer peripheral surface of the pressing roll, and FIGS. 6(a) to ( j) is a plan view showing a modification of the recessed portion, FIG. 7 is a side view showing a modification of the first embodiment, FIGS. 8 to 11 show a second embodiment of the present invention, and FIG. is a side view, FIG. 9 is a plan view of the same, FIG. 1θ is a diagram schematically showing the resin supply mechanism, FIG. 11 is a side view schematically showing the glass fiber supply mechanism, and FIG. It is a side view which shows an example. 1130.70...Coating equipment, 2.3
3.71...Private trolley, 4.24...
・Press roll, 9... Concavity, 11... Sheet-like fibre, 35... Resin supply mechanism (coating material supply mechanism), 36... Glass fiber supply mechanism (coating material supply mechanism), C...Coating material, G...Glass fiber Ia (reinforcing material), GI...
・・Chikopto strand (reinforcing material), L・・・・・
Base, L...Coach ink surface, P...Liquid thermosetting resin, CI...FRP layer, Applicant Dainippon Ink & Chemicals Co., Ltd. Figure 4 Figure (h) Figure (α) (b) Figure 10

Claims (5)

[Claims] (1) A self-propelled trolley that travels on the surface to be coated is equipped with a pressure roll that presses the coating material made of liquid resin and fibrous reinforcing material supplied to the surface to be coated. Coating equipment. (2) A coating material supply mechanism that supplies a coating material made of a liquid resin and a fibrous reinforcing material to the surface to be coated to a self-propelled trolley that travels on the surface to be coated; A coating apparatus characterized in that it is equipped with a press roll that presses the coating material supplied to the surface to be coated. (3) The coating apparatus according to Claims 1 and 2, wherein the press roll is installed on the self-propelled truck as a traveling wheel. (4) The coating apparatus according to any one of claims 1, 2 and 3, wherein a large number of recesses are formed on the outer peripheral surface of the press roll. (5) A plurality of the pressure rolls are attached to the self-propelled trolley, and each of the pressure rolls includes a pressure roll having a large number of recesses formed on its outer circumferential surface, and a flexible sheet-like fiber wound around the outer circumferential surface. 4. The coating device according to claim 1, 2, or 3, characterized in that the coating device is comprised of a combination of a pressure roll and a press roll.