JP3904526B2 - Coating device for protective layer forming material - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a coating device for a protective layer forming material for coating a protective layer forming material on an outer surface mainly of a painted portion of a vehicle that has been painted, and in particular, a liquid protective layer is formed by a roller that is in close contact with the outer surface. The present invention relates to a coating device for a protective layer forming material for coating a material.
[0002]
[Prior art]
Vehicles such as automobiles are often stored in an outdoor stockyard before being handed to a user after manufacture, or are transported by a trailer or a ship. During this time, the vehicle is exposed to dust, metal powder, salt, oil, acid, direct sunlight, etc., so the surface layer of the multiple paint layers on the outer surface of the vehicle during long-term storage and transportation. The quality of the product may be affected.
[0003]
In order to prevent such a situation, a method is known in which a peelable protective layer is formed on a painted portion in a stage before vehicle shipment (see, for example, Patent Document 1). The peelable protective layer is formed by applying and drying a protective layer forming material (also called a strippable paint) that is a liquid wrap material, and can protect the painted part. Moreover, it can be easily peeled when removed, and does not peel naturally during normal storage.
[0004]
In this case, in the step of applying the protective layer forming material, the protective layer forming material is applied to the roller, and the roller is rolled along the coating portion, whereby the protective layer forming material is applied. Yes.
[0005]
In order to automate such work and make the coating quality uniform, a method of spreading the protective layer forming material by blowing air after pouring the protective layer forming material onto the vehicle body has been proposed ( For example, see Patent Document 2). According to this method, many of the operations in the coating process of the protective layer forming material are automated, which can reduce the burden on the operator and improve the tact time.
[0006]
In addition, the present applicant has proposed a coating system and a coating method for a protective layer forming material described in Japanese Patent Application No. 2002-38880 in view of automation of the above-described operation and uniformization of coating quality. In this Japanese Patent Application No. 2002-38880, the process of applying the protective layer forming material to the outer surface of the vehicle by a roller operated by a robot is further automated, improving the production efficiency and simplifying the work, and improving the coating quality. It was possible to homogenize.
[0007]
[Patent Document 1]
JP 2001-89697 A (paragraphs [0022] to [0027])
[Patent Document 2]
JP-A-8-173882 (FIG. 1)
[0008]
[Problems to be solved by the invention]
The present invention has been made in connection with the invention of the aforementioned Japanese Patent Application No. 2002-38880, and is capable of reliably and satisfactorily applying the protective layer forming material with a simple and inexpensive configuration. An object of the present invention is to provide a coating apparatus.
[0009]
[Means for Solving the Problems]
A protective layer forming material coating apparatus according to the present invention is provided in the vicinity of a conveyance line of a vehicle, and a robot capable of teaching operation;
A roller mechanism connected to the robot and including a rotatable roller;
A supply mechanism for supplying a liquid protective layer forming material that acts as a peelable protective layer after drying to the roller;
Have
The roller mechanism portion rotatably supports the roller, and a tube member provided with a plurality of nozzle holes for supplying the protective layer forming material on an outer peripheral portion;
A substantially cylindrical collar member interposed between the roller and the tube member;
With
The collar member is It consists of a plurality of split members divided in the radial direction, and between each of the split members is formed a slit-like opening extending over the entire length along the axial direction of the roller, The protective layer forming material supplied into the collar member from the nozzle hole of the tube member From the slit-shaped opening Supply into the roller Is It is characterized by that.
[0010]
Therefore, when the protective layer forming material is supplied to the tube member, the protective layer forming material is supplied into the collar member from a plurality of nozzle holes provided in the tube member. For this reason, the protective layer forming material can be quickly filled into the roller from the opening provided in the collar member, and the coating operation with the protective layer forming material is efficiently performed while maintaining high response.
[0011]
At that time, the color member It consists of a plurality of split members divided in the radial direction, and between each of the split members is formed a slit-like opening extending over the entire length along the axial direction of the roller, This protective layer forming material is Slit-shaped opening Is fed into the roller. Therefore, the protective layer forming material can be supplied uniformly over the entire length in the axial direction of the roller, and the coating quality can be made uniform with a simple configuration and a highly accurate coating operation can be performed.
[0012]
further , Said For color members , Diameter A plurality of hole portions penetrating in the direction are formed, and the protective layer forming material supplied from the nozzle hole of the tube member to the hole portion is discharged from the outer peripheral portion of the collar member into the roller through the hole portion. Is done. Thereby, the protective layer forming material is reliably supplied in a more uniform state into the roller, and a good coating operation is easily performed.
[0015]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, a preferred embodiment of a coating device for a protective layer forming material according to the present invention will be described with reference to the accompanying drawings.
[0016]
As shown in FIGS. 1 and 2, a protective layer forming material coating apparatus 10 according to the first embodiment is provided in a transport line 12 of an automobile, and is a protective layer for a vehicle 14 that has finished painting. Apply forming material.
[0017]
The coating apparatus 10 includes three robots 16a, 16b and 16c, which are industrial robots, a control unit 18 for controlling the entire system, a tank 20 in which a protective layer forming material is accommodated, and each robot from the tank 20 It has the coating material pipe line 22 connected to 16a-16c, and the water pipe line 26 which supplies water from the water supply source 24 to the robots 16a-16c. The robots 16a to 16c are controlled by robot controllers 28a to 28c connected to the control unit 18, respectively.
[0018]
The robots 16a and 16c are provided on the left hand side in the traveling direction of the vehicle 14 in the transport line 12, and the robot 16b is provided on the right hand side in the traveling direction. The robot 16a is provided in the forward direction, the robot 16b is provided in the middle in the forward direction, and the robot 16c is provided in the rear in the forward direction. The robots 16 a to 16 c can move on the slide rail 30 parallel to the transport line 12.
[0019]
A pump 32 is provided in the middle of the coating material pipe line 22 to suck up the protective layer forming material from the tank 20 and supply it to the robots 16a to 16c. The protective layer forming material is controlled to have an appropriate temperature by a heater and a thermometer (not shown). Roller mechanisms 34 to which the protective layer forming material is supplied by the coating material pipe line 22 are provided at the distal ends of the robots 16a to 16c.
[0020]
The material of the protective layer forming material is mainly composed of an acrylic copolymer agent, and preferably has two kinds of acrylic copolymer portions having different glass transition temperatures. Specifically, for example, the protective layer forming material disclosed in Patent Document 1 may be used. Further, the protective layer forming material can adjust the viscosity by changing the mixing ratio with water and the temperature, and when it is dried, it adheres to the vehicle 14 and becomes dust, metal powder, salt, oil, acid, direct sunlight, etc. Thus, the painted part of the vehicle 14 can be protected chemically and physically. Furthermore, when the vehicle 14 is delivered to the user, it can be easily peeled off when the protective layer forming material is removed.
[0021]
As illustrated in FIG. 3, the robots 16 a to 16 c are, for example, industrial articulated robots, and a base unit 40 and a first arm 42 and a second arm 44 in order with the base unit 40 as a reference. And a third arm 46, and a roller mechanism 34 is provided at the tip of the third arm 46. The roller mechanism 34 is detachable from the third arm 46 and acts as a so-called end effector.
[0022]
The first arm 42 can be rotated horizontally and vertically with respect to the base portion 40 by axes J1 and J2. The second arm 44 is connected to the first arm 42 so as to be rotatable about the axis J3, and the second arm 44 can be rotated by the axis J4. The third arm 46 is connected to the second arm 44 so as to be rotatable about the axis J5, and the third arm 46 can be rotated by the axis J6.
[0023]
By such operations of the six-axis robots 16a to 16c, the roller mechanism unit 34 connected to the tip can be moved to an arbitrary position in the vicinity of the vehicle 14 and can be set in an arbitrary direction. It is. In other words, the roller mechanism 34 can move with six degrees of freedom. The robots 16a to 16c may have an operation unit such as an expansion / contraction operation and a parallel link operation in addition to the rotation operation.
[0024]
As shown in FIGS. 4 to 6, the roller mechanism 34 is attached to the tip of the third arm 46 of the robot 16a (16b, 16c) and absorbs and stores the protective layer forming material in a cylindrical shape. And a thrust rotating portion 69 which is a mounting portion for the third arm 46. The thrust rotating portion 69 includes an attachment member 70, a thrust rotating member 74 that is rotatably supported with respect to the attachment member 70 via a bearing 72, and a base portion 76 attached to the lower portion of the thrust rotating member 74. And have.
[0025]
The roller mechanism part 34 is provided with pneumatic cylinders 78 and 80 provided at both ends of the base part 76 and substantially lower ends of two downward extending parts 76a extending downward from the base part 76 via a swing shaft 82. A swinging member 84 that is pivotally supported, a holder 86 that holds the roller 48, and a connection portion 88 that connects the holder 86 and the swinging member 84 are provided. The swing member 84 has two upward extending portions 84a extending upward, and a pin 90 is provided in parallel with the swing shaft 82 at the substantially upper end of the upward extending portion 84a. The pin 90 is movably inserted into a long hole 91 formed in the downward extending portion 76a.
[0026]
The roller mechanism section 34 includes two pin pressing members 92 and 94 that rotate around the swing shaft 82 under the force of the rods 78a and 80a of the pneumatic cylinders 78 and 80. The pressing surface 92a of the pin pressing member 92 presses the left surface of the pin 90 in FIG. 6 when the rod 78a is retracted, and the pressing surface 94a of the pin pressing member 94 is the pin 90 in FIG. 6 when the rod 80a retracts. Press the right side of.
[0027]
A rotation restricting member 96 is provided on the upper portion of the thrust rotating member 74, and a small protrusion 98 that protrudes downward from the mounting member 70 is disposed in a recess 96 a on the upper surface of the rotation restricting member 96. The width of the small protrusion 98 is slightly smaller than the width of the recess 96a, and the thrust rotating member 74 is rotatable in the thrust direction within the range of the gap. Here, the thrust direction is a direction orthogonal to the axis of the roller 48 itself, and is a rotation direction around the axis C of the third arm 46 (see FIG. 6). The bolt 100 for attaching the attachment member 70 to the third arm 46 may also be used as the small protrusion 98.
[0028]
The connection portion 88 is provided with two clampers 102 and 104 that face each other at the upper and lower portions. The clamper 102 is fixed to the swing member 84, while the clamper 104 is fixed to the holder 86, and the clampers 102 and 104 hold the aluminum pipe 106, thereby connecting the swing member 84 and the holder 86. . On the surface of the aluminum pipe 106, an annular groove 106a serving as a dividing line of the aluminum pipe 106 is provided.
[0029]
As shown in FIGS. 4 and 5, the holder 86 includes a plate-shaped holder body 86 e. A fixed holder portion 86a is fixed to one end of the holder main body 86e by a bolt 86b, and a movable holder portion 86c is rotatably attached to the other end of the holder main body 86e via a shaft member 86d. The connecting member 110b is fixed to the fixed holder portion 86a by a nut 110a, and the coating material pipe line 22 is connected to one end side opening of the connecting member 110b.
[0030]
A first end 112a of a hollow pipe (pipe member) 112 is connected to the other end side opening of the connecting member 110b. The pipe 112 supplies the protective layer forming material supplied from the coating material pipeline 22 into the roller 48 and supports the roller 48 rotatably. A plurality of (for example, two) conical grooves (not shown) are formed in the first end portion 112a, and an embedding bolt or the like (not shown) is engaged with the grooves from the side of the connecting member 110b. 112 is firmly attached to the connecting member 110b. The second end 112b of the pipe 112 is closed.
[0031]
A plurality of nozzle holes 114 for feeding the supplied protective layer forming material to the roller 48 are formed in the pipe 112. The pipe 112 is preferably formed of a stainless steel material. For example, the pipe 112 is more preferably formed of a SUS304-based material (steel pipe classified into austenite: conforming to Japanese Industrial Standards).
[0032]
A circular groove 86f is formed on the distal end side of the movable holder 86c. The movable holder portion 86c can pivot under the urging action of the spring 116, and the second end portion 112b of the pipe 112 is engaged with the circular groove portion 86f by the elastic force of the spring 116. Thereby, the pipe 112 is reliably held.
[0033]
As shown in FIGS. 5 and 7, the roller 48 is formed of a material that can absorb and store the protective layer forming material, and the protective layer forming material is applied by being in close contact with the surface of the vehicle 14. A hollow application member (application part) 48a, and end caps 122 that are liquid-tightly attached to the openings 48b at both ends of the application member 48a via an O-ring 120.
[0034]
A hole 122 a is formed at the center of the end cap 122, and the pipe 112 is directly inserted into the hole 122 a, so that the end cap 122 is integrated with the roller 48 with respect to the pipe 112. It is supported rotatably. The fitting of the pipe 112 and the hole 122a is adjusted to such an extent that the protective layer forming material can be held inside the coating member 48a.
[0035]
As shown in FIGS. 7 and 8, a substantially cylindrical collar member 124 is interposed between the pipe 112 and the roller 48. The collar member 124 includes a plurality of, for example, two split members 126a and 126b, which are made of, for example, plastic and divided in the radial direction in order to reduce the weight. Between the split members 126a and 126b, slit-like grooves (openings) 128a and 128b extending in the axial direction of the roller 48 (in the direction of arrow B in FIG. 7) are formed. The grooves 128a and 128b are provided with a predetermined gap S (see FIG. 8).
[0036]
As shown in FIG. 9, a combined hydraulic and pneumatic circuit (supply mechanism unit) 150 for supplying the protective layer forming material to the roller 48 includes a compressor 152 and an air tank connected to the discharge unit of the compressor 152. 154, a manual pneumatic injection valve 156 that switches between supplying and shutting off air pressure, a regulator 158 that reduces the secondary pressure by an electric signal supplied from the control unit 18, and a secondary pressure of the regulator 158 And a regulator operation valve 160 that is pilot operated to reduce the pressure in the coating material pipe line 22.
[0037]
The composite circuit 150 is provided between the secondary side of the regulator operation valve 160 and the MCV (Material Control Valve: supply switching valve) 162 to which the water pipe 26 is connected, and the secondary side of the MCV 162 and the roller 48. Trigger valve 164. In the MCV 162, switching valves 162a and 162b for switching between communication and blocking of the coating material pipe line 22 and the water pipe line 26 are provided, and the secondary sides of the switching valves 162a and 162b communicate with each other. In FIG. 9, a broken line indicates a pneumatic line.
[0038]
The MCV 162, the trigger valve 164, and the regulator operation valve 160 are not limited to the pneumatic pilot type, and may be a drive type such as an electric solenoid.
[0039]
The composite circuit 150 further includes an MCV switching electromagnetic valve 166 for operating the switching valves 162a and 162b in a pilot manner by switching the air pressure supplied from the pneumatic injection valve 156, and a trigger switching electromagnetic valve for operating the trigger valve 164 in a pilot manner. 168.
[0040]
The MCV switching electromagnetic valve 166 makes one of the switching valves 162a and 162b communicate with each other and shuts off the other by an electric signal supplied from the control unit 18, and switches the water and the protective layer forming material to the trigger valve 164. Supply. The trigger switching electromagnetic valve 168 switches the trigger valve 164 to the communication / blocking state by an electric signal supplied from the control unit 18 and supplies water or a protective layer forming material to the roller 48.
[0041]
Manual stop valves 170 and 172 are provided in the middle of the coating material pipeline 22 and the water pipeline 26, respectively. Stop valves 170 and 172 are normally maintained in communication. In the composite circuit 150, silencers 174 are provided at the air discharge ports, respectively, to reduce exhaust noise. The compressor 152, the pump 32, and the water supply source 24 are provided with a relief valve (not shown) that prevents an excessive pressure increase.
[0042]
The decompressed air is supplied to the bottom side of the pneumatic cylinder 52 via an electromagnetic pilot regulator 176. The regulator 176 is electrically operated by the control unit 18 or manually operated by a predetermined dial or the like, and can appropriately change the pressure value on the secondary side when the protective layer forming material is applied. The secondary side of the regulator 176 communicates with the bottom side of the pneumatic cylinder 52. The air on the rod side of the pneumatic cylinder 52 can be discharged via the silencer 174.
[0043]
Note that the compressor 152, the air tank 154, the water supply source 24, and the pump 32 in the composite circuit 150 are common to the robots 16a to 16c, and other devices are individually provided in the robots 16a to 16c.
[0044]
Next, the operation | movement which apply | coats a protective layer forming material to the vehicle 14 using the coating device 10 comprised in this way is demonstrated.
[0045]
First, the robot 16a to 16c is instructed to operate in advance. Specifically, the robots 16a to 16c are taught to share the bonnet part 14a, the roof center part 14b, and the roof rear part 14c of the vehicle 14, respectively, and to apply the protective layer forming material to the respective responsible parts. The taught teaching data is recorded and held in a predetermined recording unit of the control unit 18 (see FIG. 1). When the vehicle 14 is, for example, a sedan type, the robot 16c shares the trunk portion.
[0046]
That is, as shown in FIG. 10, the distance between the third arm 46 of the robot 16a and the surface of the vehicle 14 is appropriately maintained, and the tilt angle of the swing member 84 is taught to be a predetermined angle θ. The inclination angle of the swing member 84 is basically maintained at the angle θ. However, for example, the concave portion 200 and the convex portion 202 may be ignored, and the tilt angle of the swing member 84 may be slightly changed. By ignoring the shallow concave portion 200 and the relatively low convex portion 202 in this manner, the operation teaching of the robot 16a is facilitated.
[0047]
Next, when the protective layer forming material is applied to the vehicle 14 while moving the robot 16a to the right in FIG. 10, the right side so as to generate a relatively weak force Fa in the direction in which the rod 80a retracts. Air is supplied to the pneumatic cylinder 80. Further, air is supplied to the left pneumatic cylinder 78 so that the rod 78a extends. Thereby, the pressing surface 94 a of the right pin pressing member 94 presses the right surface of the pin 90 with a relatively weak force, and the pressing surface 92 a of the left pin pressing member 92 is separated from the pin 90. Therefore, the swing member 84 and the roller 48 receive a counterclockwise force around the swing shaft 82, and the roller 48 is pressed against the surface of the vehicle 14 with an appropriate pressing force.
[0048]
The force Fa is appropriately adjusted according to the application location and moving method of the roller 48. This adjustment can be easily performed by operating a pressing force adjusting function unit corresponding to the regulator 176 with the control unit 18 or operating a predetermined dial or the like.
[0049]
On the other hand, as shown in FIG. 11, when applying the protective layer forming material to the vehicle 14 while moving the robot 16a to the left, a relatively weak force Fa is generated in the direction in which the rod 78a retracts. Air is supplied to the left pneumatic cylinder 78. Air is supplied to the right pneumatic cylinder 80 so that the rod 80a extends. Accordingly, the pressing surface 92 a of the left pin pressing member 92 presses the left surface of the pin 90 with a relatively weak force Fa, and the pressing surface 94 a of the right pin pressing member 94 is separated from the pin 90. Therefore, the swing member 84 and the roller 48 receive a clockwise force around the swing shaft 82, and the roller 48 is pressed against the surface of the vehicle 14 with an appropriate pressing force.
[0050]
Thus, the roller 48 can be appropriately pressed against the surface of the vehicle 14 by controlling the flow direction and pressure of the air supplied to the pneumatic cylinders 78 and 80 in accordance with the traveling direction of the robot 16a. it can.
[0051]
Thereafter, the vehicle 14 coated with the protective layer forming material by the robots 16a to 16c is transported to the next process by the transport line 12. Then, the robots 16a to 16c hold a standby posture that does not interfere with the vehicle 14, and wait until the next vehicle 14 is carried in. At this time, the trigger valve 164 is shut off and the supply of the protective layer forming material is stopped. The applied protective layer forming material is naturally dried or dried while blowing to form a peelable protective layer to protect the painted portion of the vehicle 14.
[0052]
In this case, in the first embodiment, as shown in FIGS. 5 and 7, the coating material pipe line 22 is connected to the first end portion 112 a of the pipe 112, and the protection supplied from the coating material pipe line 22. The layer forming material is discharged into the collar member 124 from the plurality of nozzle holes 114 of the pipe 112.
[0053]
At that time, the collar member 124 includes two split members 126a and 126b, and extends between the split members 126a and 126b in the axial direction of the roller 48 (in the direction of arrow B in FIG. 7) to form a predetermined gap. Slit groove portions 128a and 128b provided with S are formed (see FIG. 8). For this reason, the protective layer forming material is fed along the axial direction into the roller 48 from the grooves 128a and 128b, and the protective layer forming material can be supplied uniformly over the entire axial length of the roller 48. . Thereby, it is possible to obtain an effect that the coating quality is uniformed and the coating operation is performed with high accuracy with a simple configuration.
[0054]
In addition, since the collar member 124 is accommodated in the roller 48, the roller 48 is quickly filled with a necessary amount of the protective layer forming material. This is because the volume of the space in the roller 48 is greatly reduced. For this reason, compared with the structure which does not use the collar member 124, there exists an advantage that the application | coating operation | work by a protective layer forming material is efficiently performed maintaining a high response.
[0055]
Further, in the collar member 124, grooves 128a and 128b are formed between the divided members 126a and 126b. Therefore, the configuration of the collar member 124 is simplified, and the collar member 124 can be manufactured economically.
[0056]
Further, for example, there is no need to interpose a bearing between the pipe 112 and the end cap 122, and the entire roller mechanism 34 can be reduced in weight and size. In addition, the number of parts can be reduced and the roller mechanism 34 can be manufactured economically.
[0057]
FIG. 12 is an exploded perspective view of a main part of a roller mechanism unit 180 constituting a coating device for a protective layer forming material according to a second embodiment, and FIG. 13 is a cross-sectional explanatory view of a main part of the roller mechanism unit 180. It is. In addition, the same referential mark is attached | subjected to the component same as the roller mechanism part 34 which comprises the coating device 10 which concerns on 1st Embodiment, and the detailed description is abbreviate | omitted. Similarly, the detailed description of the third embodiment described below will be omitted.
[0058]
The roller mechanism portion 180 includes a collar member 182 interposed between the pipe 112 and the roller 48. The collar member 182 includes a plurality of, for example, two split members 184a and 184b that are divided in the radial direction, and a predetermined gap S extends between the split members 184a and 184b in the axial direction of the roller 48. The provided slit-shaped grooves (openings) 186a and 186b are formed.
[0059]
The split members 184a and 184b are provided with a plurality of holes (openings) 188a and 188b that penetrate from the center of the collar member 182 in the radial direction. The holes 188a and 188b are formed in a zigzag manner in the outer peripheral portions of the split members 184a and 184b, respectively, and are uniformly dispersed in the axial direction.
[0060]
In the second embodiment configured as described above, the protective layer forming material supplied from the coating material conduit 22 is discharged into the collar member 182 from the nozzle hole 114 of the pipe 112. At that time, slit-shaped grooves 186a and 186b are formed between the split members 184a and 184b constituting the collar member 182 so as to extend in the axial direction of the roller 48, and the split members 184a and 184b A plurality of holes 188a and 188b penetrating in the radial direction are provided.
[0061]
For this reason, the protective layer forming material is fed into the roller 48 along the grooves 186a and 186b, and into the roller 48 from the plurality of holes 188a and 188b through centrifugal force due to the rotation of the collar member 182. Discharged. Accordingly, the protective layer forming material can be supplied uniformly and reliably over the entire length of the roller 48 in the axial direction, the coating quality is made uniform with a simple configuration, and a high-precision coating operation is performed. The same effects as those of the embodiment can be obtained. In the second embodiment, the grooves 186a and 186b need not be provided.
[0062]
FIG. 14 is an explanatory cross-sectional view of a main part of a roller mechanism 190 that constitutes a coating device for a protective layer forming material according to the third embodiment.
[0063]
The roller mechanism 190 includes a collar member 192 interposed between the pipe 112 and the roller 48. The collar member 192 includes a plurality of, for example, two split members 194a and 194b that are divided in the radial direction. A predetermined gap S extends between the split members 194a and 194b in the axial direction of the roller 48. The provided slit-shaped grooves (openings) 196a and 196b are formed.
[0064]
The split members 194a and 194b are provided with a plurality of curved hole portions (openings) 198a and 198b penetrating in the radial direction from the center of the collar member 192. The curved hole portions 198a and 198b are formed in a zigzag manner in the outer peripheral portions of the split members 194a and 194b, respectively, and are formed to be uniformly distributed in the axial direction.
[0065]
In the third embodiment configured as described above, the split members 194a and 194b are provided with a plurality of curved hole portions 198a and 198b. Thereby, the coating amount of the protective layer forming material is changed, and a satisfactory coating operation is performed on a predetermined coating surface. Therefore, by selectively using the hole portions 188a and 188b and the curved hole portions 198a and 198b, it is possible to obtain an effect that desired application work can be efficiently performed on various application surfaces. In the third embodiment, the grooves 196a and 196b need not be provided.
[0066]
Moreover, although the bumper of the vehicle 14 is colored and does not need to be painted, the protective layer forming material may be applied to a portion other than the painted portion such as the bumper.
[0067]
【The invention's effect】
According to the protective layer forming material coating apparatus according to the present invention, the protective layer forming material is supplied into the color member from a plurality of nozzle holes provided in the tube member, and the color member includes the protective layer. An opening for supplying the forming material into the roller is provided, and the protective layer forming material is fed into the roller through the opening. As a result, the protective layer forming material can be quickly filled into the roller from the opening provided in the collar member, and the coating operation with the protective layer forming material is efficiently and satisfactorily performed while maintaining high response. The
[Brief description of the drawings]
FIG. 1 is a perspective view of a coating device for a protective layer forming material according to a first embodiment.
FIG. 2 is a front view of the coating apparatus.
FIG. 3 is a perspective view of a robot in the coating apparatus and a roller mechanism provided in the robot.
FIG. 4 is an enlarged perspective view of the roller mechanism.
FIG. 5 is a partial sectional front view of the roller mechanism.
FIG. 6 is a side view of the roller mechanism.
FIG. 7 is an exploded perspective view of a main part of the roller mechanism.
FIG. 8 is a cross-sectional explanatory view of a main part of the roller mechanism.
FIG. 9 is a diagram showing a combined circuit of hydraulic pressure and pneumatic pressure.
FIG. 10 is an explanatory diagram showing the positional relationship between the robot and the surface of the vehicle in the process of moving the robot to the right.
FIG. 11 is an explanatory diagram showing a positional relationship between the robot and the surface of the vehicle when the robot is moved in the left direction.
FIG. 12 is an exploded perspective view of a main part of a roller mechanism that constitutes a coating device for a protective layer forming material according to a second embodiment.
FIG. 13 is an explanatory cross-sectional view of a main part of the roller mechanism.
FIG. 14 is an explanatory cross-sectional view of a main part of a roller mechanism portion constituting a coating device for a protective layer forming material according to a third embodiment.
[Explanation of symbols]
10 ... Coating device 12 ... Conveying line
14 ... Vehicles 16a-16c ... Robot
18 ... Control unit 20 ... Tank
22 ... Coating material pipe line 26 ... Water pipe line
30 ... slide rail 32 ... pump
34, 180, 190 ... roller mechanism part 40, 76 ... base part
48 ... Roller 48a ... Coating member
48b ... Opening 52, 78, 80 ... Pneumatic cylinder
78a, 80a ... Rod 82 ... Oscillating shaft
84 ... Swing member 86 ... Holder
112 ... Pipe 112a, 112b ... End
114 ... Nozzle hole 120 ... O-ring
122 ... End cap 122a ... Hole
124, 182, 192 ... collar members
126a, 126b, 184a, 184b, 194a, 194b ... split members
128a, 128b, 186a, 186b, 196a, 196b ... groove
188a, 188b ... hole 198a, 198b ... curved hole

Claims (2)

A robot that is provided near the vehicle transfer line and capable of teaching;
A roller mechanism connected to the robot and including a rotatable roller;
A supply mechanism for supplying a liquid protective layer forming material that acts as a peelable protective layer after drying to the roller;
Have
The roller mechanism portion rotatably supports the roller, and a tube member provided with a plurality of nozzle holes for supplying the protective layer forming material on an outer peripheral portion;
A substantially cylindrical collar member interposed between the roller and the tube member;
With
The collar member includes a plurality of split members that are divided in a radial direction, and slit-like openings extending over the entire length along the axial direction of the roller are formed between the split members, and the tube the protective layer forming material from the nozzle hole of the member is fed into the collar member, the coating apparatus of the protective layer forming material, characterized in Rukoto supplied to said roller from said slit opening. In the coating apparatus of the protective layer forming material according to claim 1 Symbol placement,
Said collar member has a plurality of holes extending through in the radial direction is made form, the protective layer forming material to be supplied to the hole from the nozzle hole of the tube member, the collar through the hole portion An apparatus for applying a protective layer forming material, wherein the protective layer forming material is discharged from an outer peripheral portion of the member into the roller.

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