JP2009066546A - Support apparatus for coating inner surface of long pipe workpiece - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a support apparatus for coating inner surface of long pipe workpiece capable of dispensing with transferring work of a long pipe workpiece in a coating booth. <P>SOLUTION: A turning table device 1 having a guide rail 3 and a motor for rotary driving workpiece is installed on a coating booth 5. Driving rollers 10, 10a and driven rollers 11, 11a are parallely installed on a support base 7 with travelling casters 9 to form a carriage device 6 having a power transmission mechanism for transmitting the rotary driving force to the driving rollers 10, 10a. The long pipe workpiece 13 loaded with ringlike tools 14 having required outside diameters is carried-in the coating booth 5 in a state of being placed on the driving rollers 10, 10a and driven rollers 11, 11a of the carriage device 6, the power transmission mechanism of the carriage device 6 carried on the guide rail 3 of the turning table device 1 is linked on the output side of the motor for rotary driving workpiece, and the long pipe workpiece 13 placed on the driving rollers 10, 10a and driven rollers 11, 11a is coated by a coating gun 32 while rotating it. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to a support device for inner surface coating of a long pipe work used for supporting the long pipe work when performing inner face coating of a long pipe work such as a jet engine shaft.

  Generally, the shaft of a jet engine is a long tube having a length of several meters. Further, the jet engine shaft needs to be coated on its inner surface such as heat resistant coating.

  By the way, as a method for coating the inner surface of a long pipe work such as the jet engine shaft, as shown in FIGS. 5 (a) and 5 (b), it is placed horizontally on a support base a and supported. An operator (not shown) inserts a long (long handle) paint gun c to the inner axial center position (center of the inner surface) of the long pipe work (steel pipe) b, It has been conventionally performed to perform coating while moving the coating gun c in the longitudinal direction of the long tubular work b (see, for example, Patent Document 1).

  In addition, unevenness that occurs when the spray of paint from the coating gun does not come out uniformly, or unevenness that occurs due to difficulty in moving the coating gun in the axial direction while being positioned at the axial center of the long pipe work In order to reduce this, the long tube work is placed on a carriage with a support roller, and the operator looks at the state of the painted surface inside and checks for unevenness on the support roller provided on the carriage. It is also considered that the long pipe work is repeatedly applied while being rotated by hand as appropriate.

  In addition, in the above-mentioned patent document 1, in a device for performing powder coating of a pipe material such as a steel pipe, as a device for supporting a steel pipe as a pipe material to be coated in the painting booth, a moving table is provided on the floor of the painting booth. Are provided so as to be movable in the longitudinal direction of the steel pipe via a drive roller, and four rotary support rollers for supporting both ends of the steel pipe are provided on the moving table, and each of the rotary support rollers is provided on the steel pipe. A mechanism to vary the roller spacing left and right and back and forth according to the length and diameter, and a drive motor provided on the moving table is connected to one of the four rotation support rollers. It has been proposed to use a supporting device having a configuration as described above. According to this support device, the steel pipe is rotated by rotationally driving one rotary support roller connected to the drive motor in a state where the steel pipe is supported horizontally on the four rotary support rollers. It is said that it can be made.

JP-A-9-253537

  However, the method shown in FIGS. 5 (a) and 5 (b) above, or a long tube work is placed on a carriage with a support roller, and an operator manually observes the coating condition of the inner surface on the support roller. All the methods of painting work while rotating the long pipe work appropriately require skill of the operator, and the quality improvement depends on the skill of the operator, so mass production and stabilization of quality are required. The reality is that there is a limit to.

  In addition, if it uses a support apparatus as shown in the said patent document 1, it will rotate in a coating booth, supporting a steel pipe sideways on the four rotation support rollers provided on the movable stand. However, since the above moving platform is installed in the painting booth, the steel pipe that is the workpiece to be painted must be brought into the painting booth using a separate carriage for transportation, and then the above moving platform. It is necessary to transfer onto each rotation support roller above. In addition, after the painting work, it is necessary to transfer the steel pipes supported on the respective rotation support rollers to a carriage for transporting and the like from the painting booth.

  However, for example, a jet engine shaft may be a heavy object having a weight of several hundred kilograms, and a carriage for conveying such a heavy work in a painting booth, as shown in Patent Document 1 above. In order to transfer between the rotating support rollers of the support device, equipment for transfer work such as a hoist is required, but normally the painting booth is made compact to adjust the air conditioning relationship Therefore, in practice, it is difficult to install the above-mentioned equipment for the replacement work in the painting booth. In other words, in order to install the hoist and other equipment for the transfer work in the painting booth, it is necessary to enlarge the painting booth. When the painting booth is thus enlarged, the air conditioning capacity is increased. Necessity arises.

  Moreover, in the supporting device as shown in Patent Document 1, since a coating gun has to be inserted over the entire length of the steel pipe from one end in the longitudinal direction with respect to the steel pipe as a workpiece, a paintable steel pipe ( The length dimension of the workpiece is limited to the same length dimension as that of the paint gun.

  Therefore, the present invention eliminates the need to replace the long pipe work in the painting booth, and also performs the inner surface painting work of the long pipe work having a total length almost twice the length of the coating gun. An object of the present invention is to provide a support device for coating the inner surface of a long pipe work.

  In order to solve the above-mentioned problems, the present invention can run with a leg table and a turntable device provided with a guide rail and a work rotation drive motor and installed in a painting booth. The drive roller and the driven roller are installed in parallel on the left and right positions on the upper surface side of the support frame, and can be detached at the required position of the support frame to the output side of the work rotation drive motor of the turning table device. Positioning on the turning table device the carriage device provided with a power transmission mechanism for connecting and transmitting the rotational driving force of the motor to the driving motor, and the carriage device placed on the guide rail of the turning table. And a carriage fixing device for releasably fixing the position, and an outer diameter larger than the distance between the driving roller and the driven roller, and the inner diameter portion of the long tubular work To become equipped in a state attached to the outer periphery of both end portions and a ring-shaped jig for mounting on the drive roller and the driven roller of the carriage device structure countercurrent.

  Further, in the above configuration, the carriage fixing device is arranged on the turning table device so that the central portion in the width direction in the middle portion in the front-rear direction of the carriage device is located immediately above the turning center of the turning table device. The position can be fixed.

  Further, in each of the above configurations, the cart fixing device is configured by a toggle stopper and an angle member provided with a guide rail sandwiched on the turning table device, and a leg member of the cart device is provided between the toggle stopper and the angle material. It is set as the structure which can position and fix the position of this trolley | bogie apparatus by inserting | pinching.

  Further, in each of the above-described configurations, a manual rotation shaft is provided for detachably connecting the output shaft of the motor to the flexible shaft provided at the input portion of the power transmission mechanism of the carriage device to the work rotation driving motor provided in the turning table device. It is set as the structure which provided the clutch.

According to the support device for inner surface coating of a long pipe work of the present invention, the following excellent effects are exhibited.
(1) A rotating table device provided with a guide rail and a work rotation drive motor and installed in a painting booth, and a drive roller and a driven device at the left and right positions on the upper surface side of a support frame that can be run with legs. A roller is installed in parallel, and is connected to a required portion of the support base in a releasable manner on the output side of the work rotation drive motor of the turning table device to transmit the rotational drive force of the motor to the drive motor. A carriage device provided with a power transmission mechanism, a carriage fixing device for positioning the carriage device placed on the guide rail of the turning table on the turning table device and releasably fixing the carriage device, and the drive The bogie device has an outer diameter larger than the distance between the roller and the driven roller, and the inner diameter portion is attached to the outer periphery of both ends in the longitudinal direction of the long tube work. Since it is configured to include a ring-shaped jig for mounting on the moving roller and the driven roller, the long pipe work is inserted through ring-shaped jigs attached to the outer circumferences at both ends in the longitudinal direction. Carrying in and out of the painting booth can be performed in a state of being placed on the driving roller and the driven roller of the carriage device. In the painting booth, the power transmission mechanism of the carriage device is connected to the output side of the work rotation driving motor of the turning table device, so that the rotation driving force of the motor can be transmitted to the driving roller for rotation. Therefore, it is possible to perform the inner surface painting work by rotating the long pipe work while being placed on the driving roller and the driven roller of the carriage device. Therefore, it is not necessary to replace the long pipe work in the painting booth, and it is not necessary to provide equipment such as a hoist for replacing the work in the painting booth, so the painting booth is made compact. It is possible to minimize the air conditioning capacity of the painting booth.
(2) Since the work rotation driving motor for rotating the long pipe work is mounted on the turning table device installed in the painting booth, the carriage device can be configured not to be equipped with a motor. For this reason, a trolley | bogie apparatus can be made into a simple structure, and a weight can be lightened. In addition, since the manufacturing cost of the bogie device can be suppressed, it is possible to exhibit the function as a bogie for product transportation by preparing many bogie devices in accordance with a wide variety of long pipe works. .
(3) When long tube work placed on the bogie device is brought into and out of the paint booth where explosion protection is to be carried out, it is not necessary to attach / detach the explosion-proof connector. The workability of the carry-out work can be improved.
(4) When painting the long pipe work, if the long pipe work is rotated on the driving roller and the driven roller, the inner surface is coated several times with a paint gun. Even if the gun tip is somewhat deteriorated, the adhesion of the paint can be averaged, and the coating unevenness can be reduced. Further, even if the position of the coating gun is slightly deviated from the axial center position of the long pipe work, it is possible to reduce coating unevenness.
(5) Since the long tube work can be turned together with the carriage device by the turning table device, the coating gun is inserted from one end of the long tube work, After coating the inner surface from the end of the tube to the center in the longitudinal direction, the long tube work is turned 180 degrees by turning the swivel table, and then the coating gun is moved to the other of the long tube work in the longitudinal direction. The inner surface can be applied over the entire length in the longitudinal direction of the long pipe work by inserting from the other end and painting the inner surface from the other end to the central portion in the longitudinal direction. Therefore, it becomes possible to carry out the inner surface coating of a long pipe work having a length that is almost twice the length of the coating gun.
(6) The position of the bogie device is fixed on the turntable device as an arrangement in which the central portion in the width direction in the intermediate portion in the front-rear direction of the bogie device is positioned directly above the turning center of the turntable device. By adopting such a configuration, even if the orientation of the long tubular work is reversed 180 degrees by turning the turntable device as shown in the above (5), the axial center after the long tubular work is reversed. It becomes possible to make the position coincide with the axial center position before inversion.
(7) The carriage fixing device is composed of a toggle stopper and an angle member provided with a guide rail on the turning table device, and the leg member of the carriage device is sandwiched between the toggle stopper and the angle material. The cart fixing device can be easily realized by adopting a configuration in which the cart device can be positioned and fixed.
(8) A manual clutch for releasably connecting the output shaft of the motor to the flexible shaft provided at the input portion of the power transmission mechanism of the carriage device is provided on the motor for driving the work rotation provided in the turning table device. With this configuration, the power transmission mechanism of the carriage device can be easily connected to and detached from the work rotation driving motor.

  The best mode for carrying out the present invention will be described below with reference to the drawings.

  FIGS. 1 to 4 (a) and (b) show an embodiment of a support device for painting an inner surface of a long pipe work according to the present invention, and extend in the front-rear direction above a table frame 2 that can be swiveled. A turning table device 1 provided with a pair of left and right guide rails 3 and a work rotation driving motor 4 is installed at a required location in the painting booth 5. Drive rollers 10 and 10a and driven rollers 11 and 11a are provided in parallel on the left and right positions on the upper surface of the support base 7 that extends in the front-rear direction and includes the leg members 8 with the traveling casters 9 at the four corners. A power transmission mechanism 12 is detachably connected to the output side of the work rotation driving motor 4 installed in the turning table device 1 to transmit the rotational driving force of the motor 4 to the driving rollers 10 and 10a. A cart apparatus 6 is provided. Furthermore, a ring-shaped jig 14 for mounting on the outer periphery of both ends in the longitudinal direction of the long tube work 13 is provided, and the long tube is formed from the turning table device 1, the carriage device 6, and the ring-shaped jig 14. A support device for coating the inner surface of the workpiece 13 is configured. As a result, the long tubular work 13 with the ring-shaped jigs 14 mounted on the outer circumferences at both ends in the longitudinal direction is placed on the upper side of the driving rollers 10 and 10a and the driven rollers 11 and 11a in the cart device 6 in the ring shape. By placing it through the jig 14, the long tubular work 13 can be moved to an arbitrary location through the traveling caster 9 together with the carriage device 6. Further, in a state where the traveling casters 9 of the cart device 6 are put on the left and right guide rails 3 of the turning table device 1, the work rotation driving motor 4 provided in the turning table device 1. By connecting a power transmission mechanism 12 provided in the cart device 6 to the output side, the rotational driving force of the work rotation driving motor 4 is supplied to the driving roller 10 of the cart device 6 via the power transmission mechanism 12. , 10a so that the driving rollers 10, 10a can be rotationally driven, and the rotation of the driving rollers 10, 10a allows the driving rollers 10, 10a and the driven rollers 11, 11a to be mounted on the above. The long tubular work 13 mounted with the ring-shaped jig 14 can be rotated.

  More specifically, as shown in FIGS. 2 (A) and 2 (B), the swivel table device 1 has the table frame 2 mounted on the center shaft 15 fixed to the base surface 5a of the painting booth 5 so as to protrude upward. The table frame 2 can be driven to turn around the center shaft 15 by a turning motor (not shown), for example, a turning motor (not shown) provided on the table frame 2 so as to be rotatable about the shaft 15. It is. On the lower side of the four corners of the table frame 2, turning casters 16 are provided, and the load acting on the table frame 2 is transmitted to the base surface 5 a of the painting booth 5 through the turning casters 16. So that it can be supported.

  On the upper surface of the table frame 2, a guide rail 3 having a groove shape extending in the front-rear direction along both left and right edge portions is provided. Further, as a cart fixing device 17 for positioning and fixing the cart device 6 to be placed on the left and right guide rails 3 via the traveling casters 9, for example, one guide of the left and right guide rails 3 is used. The required height is set at two positions in the front and rear of the carriage device 6 at intervals in the vicinity of the inner side of the rail (the guide rail on the upper and lower sides in FIG. The angle member 18 having a dimension is installed in an open posture toward the guide rail 3 side, and is toggled to a position near the outside of the guide rail 3 facing the angle members 18 with the guide rail 3 interposed therebetween. A stopper 19 is provided. As a result, the carriage device 6 is put on the guide rails 3 via the traveling casters 9, and the front and rear of the carriage device 6 are placed on the one guide rail 3 as shown in FIG. When the leg members 8 are arranged between the front and rear angle members 18 and the corresponding toggle stoppers 19, the front and rear toggle stoppers 19 are operated and the toggle stoppers 19 operate the above-described toggle stoppers 19. By pushing the front and rear leg members 8 of the cart device 6 inward as shown in FIG. 4 (b), the cart fixing casters 20 provided laterally on the inner side surface of the leg members 8 are The position can be fixed by pressing against the front and rear angle members 18. Therefore, the cart device 6 can be fixed simultaneously with the positioning of the cart device 6 on the turning table device 1 via the cart fixing caster 20 and the angle member 18. When the relative position of the carriage device 6 is fixed with respect to the turning table device 1 as described above, the center portion in the width direction of the carriage device 6 passes directly above the turning center of the turning table device 1. It is assumed that it is arranged at a position.

  Further, as shown in FIGS. 2 (a) and 2 (b), a mounting member 21 that protrudes a required dimension upward is provided between the left and right guide rails 3 at one end portion (left end portion in the drawing) of the table frame 2 in the front-rear direction. The work rotation driving motor 4 is installed at the upper end of the mounting member 21 toward the other end in the front-rear direction. Further, the work rotation drive motor 4 is configured to have a manual clutch 22 for moving the output shaft 4a in the front-rear direction. Thus, the work rotation driving motor is driven by the manual clutch 22 in a state where the cart device 6 placed on the guide rail 3 is fixed at a predetermined position on the turntable device 1 by using the cart fixing device 17. 4 is moved to the other end side in the front-rear direction so that the output shaft 4a can be connected to the flexible shaft 23 of the carriage device 6 to be described later. By moving the output shaft 4a of the work rotation driving motor 4 to one end side in the front-rear direction, the output shaft 4a can be detached from the flexible shaft 23 of the carriage device 6.

  As shown in FIG. 3 (a), the carriage device 6 is slightly higher than the workpiece rotation drive motor 4 provided in the turning table device 1 in a state of being put on the guide rail 3 of the turning table device 1. The length dimension of each leg member 8 is set so that the support frame 7 can be arranged at the position.

  Further, as shown in FIGS. 3A and 3B, the left and right side edges (upper and lower edges in FIG. 3B) of the upper surface of the support base 7 are arranged at one end in the front-rear direction. A drive roller 10 extending in the front-rear direction is installed rotatably, and has grooves on the outer periphery at two locations, the other end portion in the front-rear direction on the upper surface of the support frame 7 and a required portion near the other end. In addition, a grooved drive roller 10a having an outer diameter in the groove portion equal to the outer diameter of the drive roller 10 is rotatably installed, and each of the drive rollers 10 and 10a adjacent in the front-rear direction is further installed. And the rotation shafts 10a and 10a are connected to each other via power transmission shafts 24 and 25 and a coupling 26, respectively.

  Furthermore, as the power transmission mechanism 12, the carriage device 6 is placed on the guide rail 3 of the turntable device 1 below the central portion in the left-right width direction at one end portion in the front-rear direction of the support frame 7. Thus, the flexible shaft 23 is disposed at a height position corresponding to the output shaft 4a of the work rotation driving motor 4 provided in the turning table device 1, and integrated with the other end in the front-rear direction of the flexible shaft 23. A rotating shaft 27 connected to the support frame 7 is attached to the lower surface side of the support frame 7 through a bearing 28. Further, the chain 30 is endlessly wound around a chain sprocket 29 attached to the rotary shaft 27 and a chain sprocket (not shown) attached to the corresponding portion of the power transmission shaft 24 in the front-rear direction. As a result, in the state where the output shaft 4 a of the work rotation driving motor 4 provided in the turning table device 1 is connected to the flexible shaft 23, the rotational driving force of the motor 4 is converted to the flexible shaft 23 and the rotating shaft 27. The power transmission shaft 24, the power transmission shaft 25, and the coupling 26 are connected to each other by transmitting to the chain sprocket provided on the power transmission shaft 24 through the chain sprocket 29 and the chain 30. The drive rollers 10 and 10a can be integrally rotated.

  In addition, at one end portion in the front-rear direction at the left and right other side edge portions (upper edge portion in FIG. 3B) on the upper surface of the support frame 7, the same shape as the driving roller 10 extending in the front-rear direction is required. A follower roller 11a having a shape similar to that of the grooved drive roller 10a is rotatably provided at a certain follower roller 11 and at the other end portion and a required portion near the other end.

  The ring-shaped jig 14 has a larger outer diameter than the distance between the drive rollers 10 and 10a and the driven rollers 11 and 11a provided side by side on the cart device 6 and is a long object to be coated on the inner surface. The ring shape has an inner diameter dimension corresponding to the outer diameter of a required portion as a jig mounting portion at both longitudinal ends of the pipe work 13. Thereby, even if the diameter dimension of the jig attachment part of the longitudinal direction one end side and other end side in the said long pipe workpiece 13 differs, the ring-shaped jig | tool 14 with the same outer diameter dimension is concentrically on the outer periphery. Is attached to the drive roller 10, 10a and the driven roller 11, 11a of the carriage device 6 via the ring-shaped jig 14, so that the long tube work 13 is moved in the axial direction. Can be supported in parallel with the axis of each of the rollers 10, 10a, 11, 11a, that is, horizontally on the carriage device 6. Further, even for the long pipe work 13 having different diameter dimensions, ring-shaped jigs 14 having the same outer diameter dimension are respectively attached to the outer periphery thereof, and the ring-shaped jigs 14 having the same outer diameter dimension are attached. Through the driving rollers 10 and 10a and the driven rollers 11 and 11a of the carriage device 6 through the above, the relative axial center positions of the long tubular workpieces 13 having different diameters on the carriage device 6 can be obtained. The position can always be fixed.

  When the carriage device 6 is put on the guide rail 3 of the turning table device 1 at a position adjacent to the turning table device 1 in the painting booth 5, as shown in FIG. A long spray is applied at a height position corresponding to the axial center position of the long tubular work 13 placed on the upper side of the driving rollers 10 and 10a and the driven rollers 11 and 11a of the apparatus 6 via the ring-shaped jig 14. A painting gun 32 provided with a nozzle is arranged, and the painting gun 32 can be moved in the horizontal direction so as to pass right above the turning center of the turning table device 1 along the axial direction. It is assumed that a coating apparatus 31 is installed.

  In the case of using the long pipe work inner surface coating support device having the above-described configuration, first, the ring is placed on the outer periphery of two places near both ends in the longitudinal direction of the long pipe work 13 to be subjected to the inner face coating. A jig 14 is attached.

  Next, in a state where the cart device 6 separated from the turning table device 1 is pulled out of the painting booth 5, above the driving rollers 10 and 10 a and the driven rollers 11 and 11 a of the cart device 6. The long tubular work 13 is supported on the cart device 6 by placing the long tubular work 13 via ring-shaped jigs 14 attached to both ends in the longitudinal direction. At this time, one ring-shaped jig 14 of the two ring-shaped jigs 14 attached to both ends in the longitudinal direction of the long tube work 13 is connected to the other end of the carriage device 6 in the front-rear direction. By placing the grooved drive roller 10a and the driven roller 11a in the set near the end so as to be fitted in the grooves of the drive roller 10a and the driven roller 11a of one set, The movement of the long tubular work 13 in the axial direction on the cart device 6 can be restricted.

  Next, after the carriage device 6 with the long tubular work 13 placed thereon is moved to the painting booth 5 by running through the running casters 9 provided on the respective leg members 8, It is placed on the guide rail 3 of the turning table device 1 provided.

  After the carriage device 6 is put on the guide rail 3 of the turntable device 1 as described above, the corresponding leg member 8 in the carriage device 6 is provided by operating the toggle stoppers 19 at two front and rear positions. The carriage fixing caster 20 is pressed against the angle member 18 provided on the turntable device 1 side to fix the position of the cart device 6 on the turntable device 1. Thereafter, the manual clutch 22 is operated to connect the output shaft 4 a of the work rotation driving motor 4 provided in the turning table device 1 to the flexible shaft 23 provided in the cart device 6.

  Thereafter, the swivel table device 1 is used to swivel the long tubular work 13 together with the cart device 6 at a required angle, and one end portion in the longitudinal direction of the long tubular work 13 is moved to the coating device 31. And the axial direction of the long tubular work 13 is arranged so as to be aligned with the axial direction of the coating gun 32 of the coating apparatus 31.

  When the workpiece rotation driving motor 4 is operated in this state, the rotational driving force output from the output shaft 4a of the motor 4 as described above is the power on the cart device 6 side including the flexible shaft 23. It is transmitted to the drive rollers 10 and 10a through the transmission mechanism 12, and the long tubular work 13 is rotated as the drive rollers 10 and 10a are rotationally driven. At this time, the number of rotations of the work rotation driving motor 4 is appropriately adjusted so that the long pipe work 13 is adjusted, for example, by the inner diameter of the long pipe work 13, the moving speed of the coating gun 32, the coating conditions, and the like. The coating gun 32 of the coating apparatus 31 is inserted from one end in the longitudinal direction of the long tubular work 13 in a state of being rotated at a required rotational speed according to the The inner surface of the pipe work 13 is painted.

  During the coating, the swivel table device 1 is moved from one longitudinal end of the long tubular work 13 to the middle portion in the longitudinal direction while rotating the long tubular work 13. Coating may be performed by reciprocating a plurality of times up to a position above the turning center.

  After the inner surface coating from one end portion in the longitudinal direction of the long tube work 13 to the position above the turning center of the turning table device 1 in the middle portion in the longitudinal direction is completed as described above. After the paint gun 32 is once extracted from the long tube work 13, the long tube work 13 is turned 180 degrees together with the cart device 6 by the turning table device 1, and the long tube work 13 is removed. The other end in the longitudinal direction is directed to the direction of the coating device 31, and the axial direction of the long tube work 13 is arranged in line with the axial direction of the coating gun 32 of the coating device 31. In the same manner as described above, the coating gun 32 is rotated at the intermediate portion in the longitudinal direction from the other end portion in the longitudinal direction of the long tube work 13 while rotating the long tube work 13. Table device Between until a position above the of the turning center a plurality of times back and forth, to perform the inner surface coating of the moiety.

  After the inner surface coating is completed over the entire length of the long tube work 13, the manual clutch 22 is operated so that the output shaft 4 a of the work rotation driving motor 4 is moved from the flexible shaft 23 on the cart device 6 side. After detachment, the operation of the toggle stopper 19 releases the fixing of the carriage device 6 on the turning table device 1. After that, the long caster 9 after the inner surface coating is finished by running of the running caster 9 of the carriage device 6. The pipe work 13 is carried out from the painting booth 5 together with the carriage device 6.

  Thus, according to the support device for inner surface coating of the long tube work of the present invention, the long tube work 13 which is the object of inner surface coating is carried into the coating booth 5 while being placed on the carriage device 6. While being able to carry out, in the painting booth 5, the inner surface painting operation | work can be performed, rotating with the state mounted in the trolley | bogie apparatus 6. FIG. Therefore, the work for replacing the long tubular work 13 can be performed outside the painting booth 5, so that the work for replacing the long tubular work 13 in the painting booth 5 can be made unnecessary. Therefore, since it is not necessary to provide a hoist or the like for replacing the long pipe work 13 in the painting booth 5, the painting booth 5 can be made compact, and the air conditioning of the painting booth 5 can be performed. Capability can be minimized.

  Further, the work rotation drive motor 4 for rotating the long tube work 13 at the time of painting is mounted on the turning table device 1 installed in the painting booth 5, and the carriage device 6 is a motor. Therefore, the carriage device 6 can be made simple and the weight of the carriage device 6 used for moving the long tubular work 13 can be reduced. In addition, since the manufacturing cost of the cart device 6 can be reduced, a function as a cart for product transportation can be achieved by preparing a number of cart devices 6 according to various types of long tube works 13. be able to.

  Furthermore, since the painting booth 5 generally needs to be explosion-proof, when the carriage that transports the long tube work 13 is equipped with a motor, every time the carriage is taken in and out of the painting booth 5, Each time, an explosion-proof connector must be attached and detached, and the workability of carrying in and carrying out the long tube work 13 to and from the painting booth 5 becomes poor. However, the carriage device 6 used in the present invention has a motor. Since it is not equipped, it is not necessary to attach and detach the explosion-proof connector as described above. Therefore, it is possible to improve the workability of carrying the long tube work 13 into and out of the painting booth 5.

  When painting the long tube work 13, the inner surface of the long tube work 13 is rotated a plurality of times with the paint gun 32 while rotating the long tube work 13 on the driving rollers 10, 10a and the driven rollers 11, 11a. Therefore, even if the gun tip is somewhat deteriorated, the adhesion of the paint can be averaged, and the coating unevenness can be reduced. Further, even if the position of the coating gun 32 is slightly deviated from the axial center position of the long tubular work 13, it is possible to reduce coating unevenness.

  Further, by turning the long tube work 13 together with the cart device 6 by the turning table device 1, the orientation of the long tube work 13 with respect to the coating gun 32 can be easily reversed. After inserting from one end of the long tube work 13 and coating the inner surface from the one end to the central portion in the longitudinal direction, the long tube work 13 is reversed, and then the coating gun 32 is inserted from the other end portion in the longitudinal direction of the long tubular work 13 and the inner surface from the other end portion to the central portion in the longitudinal direction is coated, so that the length of the long tubular work 13 is increased. Since the inner surface coating can be performed over the entire length in the direction, it is possible to perform the inner surface coating of the long tubular work 13 having a length dimension approximately twice the length dimension of the coating gun 32.

  In addition, this invention is not limited only to the said embodiment, The arrangement | positioning of the drive rollers 10 and 10a and the driven rollers 11 and 11a in the front-back direction of the trolley | bogie apparatus 6 is the length dimension of the elongate pipe workpiece 13. Alternatively, the length may be appropriately changed according to the attachment interval of the ring-shaped jig 14 in the long tubular work 13.

  The thicknesses of the driving rollers 10 and 10a and the driven rollers 11 and 11a and the distance between the driving rollers 10 and 10a and the driven rollers 11 and 11a are changed according to the outer diameter of the ring-shaped jig 14 attached to the long tubular work 13. May be. The arrangement of the driving rollers 10 and 10a and the driven rollers 11 and 11a in the left-right direction of the carriage device 6 may be reversed.

  The power transmission mechanism provided in the carriage device 6 can be detachably connected to the output side of the work rotation driving motor 4 provided on the turntable device 1 side, and the rotational driving force of the motor 4 can be applied to the driving rollers 10 and 10a. As long as the drive rollers 10 and 10a can be driven to rotate, a power transmission mechanism of a type other than that illustrated may be employed.

  The carriage fixing device 17 positions the carriage device 6 placed on the guide rail 3 provided on the turning table device 1 by the traveling caster 9 so that the position can be releasably fixed on the turning table device 1. If there is any type of cart fixing device other than the configuration including the angle member 18 and the toggle stopper 19 provided on the turning table device 1 and the cart fixing caster 20 provided on the leg member 8 of the cart device 6. May be.

  Of course, various modifications can be made without departing from the scope of the present invention.

It is a schematic perspective view which shows one Embodiment of the support apparatus for the inner surface coating of the long pipe workpiece of this invention. FIG. 2 is a schematic side view of the turning table device in the apparatus of FIG. 1, and (b) is a schematic plan view. FIGS. 2A and 2B show a cart apparatus in the apparatus of FIG. 1, in which (A) is a schematic side view, and (B) is a schematic plan view. FIG. 2 is an enlarged view of a cart fixing device provided in the turning table device in the apparatus of FIG. 1, (A) shows a state where the cart device is not fixed, and (B) shows a state where the cart fixing device is fixed. FIG. The outline | summary of the technique currently conventionally implemented in order to coat the inner surface of a long pipe work is shown, (A) is a front view, (B) is the side view.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Turning table apparatus 3 Guide rail 4 Work rotation drive motor 4a Output shaft 5 Painting booth 6 Carriage apparatus 7 Supporting base 8 Leg member (leg part)
DESCRIPTION OF SYMBOLS 9 Traveling caster 10, 10a Drive roller 11, 11a Follower roller 12 Power transmission mechanism 13 Long pipe work 14 Ring-shaped jig 17 Dolly fixing device 18 Angle material 19 Toggle stopper 22 Manual clutch 23 Flexible shaft

Claims (4)

  A rotating table device equipped with a guide rail and a work rotation drive motor and installed in the painting booth, and a driving roller and a driven roller parallel to the left and right positions on the upper surface side of a support frame that can be run with a leg. And a power transmission mechanism for detachably connecting to the output side of the work rotation drive motor of the swivel table device and transmitting the rotational drive force of the motor to the drive motor. A carriage device, a carriage fixing device for positioning the carriage device placed on the guide rail of the turning table on the turning table device and releasably fixing the carriage device, and the drive roller and the follower A drive roller of the carriage device having an outer diameter larger than the interval between the rollers and having an inner diameter portion attached to the outer periphery of both ends in the longitudinal direction of the long tubular work. Inner surface coating supporting device for a long pipe work and having a provided comprising configure and La and a ring-shaped jig for mounting on the driven roller.   The position of the carriage device can be fixed on the turning table device as an arrangement in which the central portion in the width direction in the intermediate portion in the front-rear direction of the carriage device is located immediately above the turning center of the turning table device. The support device for inner surface coating of the long pipe work according to claim 1.   The carriage fixing device is composed of a toggle stopper provided on the turning table device with a guide rail sandwiched between them and an angle member. The support device for inner surface coating of a long pipe work according to claim 1 or 2, wherein the device can be positioned and fixed.   A work clutch driving motor provided in the turning table device is provided with a manual clutch for releasably connecting an output shaft of the motor to a flexible shaft provided at an input portion of a power transmission mechanism of the carriage device. The support apparatus for the inner surface coating of the long pipe work of 1, 2 or 3.

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