JPH0623307A - Coating device - Google Patents

Abstract

PURPOSE:To make the entire device compact and ensure that coating operation is carried out effectively. CONSTITUTION:A cylindrical work W is supported by a rotary mechanism 2, and is allowed to rotate in one direction, centered around the axial center of the work. A brush 13 for an inner surface on an inner surface coating mechanism 3 is installed in such a way that the brush 13 can be introduced in and out across a stretch from one end of the work W to the interior of the work W. The internal circum ferential surface of the work W is coated with a coating agent using the brush 13. An outer surface coating mechanism 4 is installed against the outer circumferential surface of the work W, and the outer circum ferential surface of the work W is coated with a coating agent using a brush 37 for an external surface on an external surface coating mechanism 4. Further, an end surface coating mechanism 5 is installed against the end surface of the work W, and a coating agent is applied to the end surface of the work W suing a brush 39 for an end surface on the end surface coating mechanism 5. Thus it is possible to apply a coating agent to the end surfaces of both inner circumferential surface and outer circumferential surface almost simultaneously in such a state that the cylindrical work W is supported at one spot.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a coating apparatus for coating a coating material such as an adhesive on the inner peripheral surface, outer peripheral surface and end surface of a cylindrical work, such as a pressure-proof insulating cylinder in a lightning protection horn. It is about.

[0002]

2. Description of the Related Art Generally, when assembling a lightning protection horn, an adhesive is applied to an inner peripheral surface, an outer peripheral surface and an end surface of a pressure-proof insulating cylinder. Then, a current limiting element containing zinc oxide as a main material is housed and fixed inside the pressure-proof insulating cylinder, and a rubber insulating jacket is bonded and fixed to the outer peripheral surface of the pressure-proof insulating cylinder.

Conventionally, when applying a coating agent such as an adhesive to the inner peripheral surface, the outer peripheral surface, and the end surface of a work such as a pressure-proof insulating cylinder of this type, it must be done manually. There were many. In some cases, the inner surface coating device, the outer surface coating device, and the end surface coating device are separately arranged, and the work is sequentially carried in and out of these devices to perform the coating work.

[0004]

Therefore, in this conventional coating apparatus, the entire apparatus becomes large and
There is a problem that the coating work is troublesome and takes time.

The present invention has been made by paying attention to the problems existing in such a conventional technique, and the purpose thereof is to provide a cylindrical work piece supported at one place. (EN) Provided is a coating device capable of coating a coating agent on an inner peripheral surface, an outer peripheral surface, and an end surface almost at the same time, making it possible to downsize the entire apparatus and performing a coating operation easily and efficiently. Especially.

[0006]

In order to achieve the above object, in a coating apparatus of the present invention, a rotating mechanism for supporting a cylindrical work and rotating the work about an axis is provided. The inner surface coating mechanism is provided so that it can be put in and taken out from the end of the work piece, and applies the coating agent to the inner peripheral surface of the work. The inner surface coating mechanism is provided so as to face the outer peripheral surface of the work and applies the coating agent to the outer peripheral surface of the work. It is provided with an outer surface coating mechanism and an end surface coating mechanism which is provided so as to face the end surface of the work and which applies a coating agent to the end surface of the work.

[0007]

In the coating apparatus constructed as described above,
A cylindrical work is supported and rotated by a rotation mechanism about its axis. Then, in this state, the inner surface coating mechanism is moved into and out of the work from one end of the work, and the inner surface coating mechanism applies the coating agent to the inner peripheral surface of the work.
Further, the outer surface coating mechanism provided to face the outer peripheral surface of the workpiece applies the coating agent to the outer peripheral surface of the workpiece, and the end surface coating mechanism provided to face the end surface of the workpiece applies to the end surface of the workpiece. A coating agent is applied.

Therefore, the coating material can be applied to the inner peripheral surface, the outer peripheral surface, and the end surface of the work piece at substantially the same time while supporting the work piece at one place, and the entire apparatus can be made compact and the application material can be applied. Work can be performed easily and efficiently.

[0009]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of a coating apparatus embodying the present invention will be described below in detail with reference to the drawings.

As shown in FIGS. 1 and 2, this coating apparatus comprises an apparatus frame 1, which supports a cylindrical work W on its upper part and rotates it in one direction around the axis of the work W. The rotation mechanism 2 for the purpose is provided. The work W is, for example, a pressure-proof insulating cylinder in a lightning protection horn, and has a cylindrical cap Wa with a cover fitted at one end and a cylindrical base Wb having a flange at the other end. .

The inner surface coating mechanism 3 is arranged on the apparatus frame 1 so that it can be taken in and out from one end of the work W, and the inner surface coating mechanism 3 applies a coating agent such as an adhesive to the inner peripheral surface of the work W. Is applied. The outer surface coating mechanism 4 is arranged so as to face the outer peripheral surface of the work W.
Thus, the coating agent is applied to the outer peripheral surface of the work W. The end face coating mechanism 5 is arranged so as to face the end faces of the mouthpieces Wa and Wb of the work W, and the end face coating mechanism 5 applies the coating agent to the end faces of the mouthpieces Wa and Wb.

Therefore, the rotating mechanism 2 will be described in detail first. As shown in FIGS. 1 to 3, the rotating motor 6 is arranged on the apparatus frame 1, and the work W is attached to the tip of the motor shaft. A chuck 7 for mounting and supporting the mouthpiece Wa on the one end side is provided. The rail 8 is laid on the apparatus frame 1 below the work W and extends in the same direction as the axis of the work W. The support 9 is supported on the rail 8 so as to be movable and adjustable, and a pair of support rollers 10 for supporting the flange portion of the mouthpiece Wb on the other end side of the work W is provided on the upper portion thereof.

The rotating motor 6 is rotated in a state where the mouthpiece Wa on one end side of the work W is mounted and supported on the chuck 7 and the flange portion of the mouthpiece Wb on the other end side is supported on the support roller 10. As a result, the work W is rotated clockwise in FIG. 3 at a predetermined speed.

Next, the inner surface coating mechanism 3 will be described in detail. As shown in FIGS. 1, 2 and 4 to 6, the spline shaft 11 has a spline shaft 11 on the other end side of the work W on the side of the mouthpiece Wb. It is movably and rotatably supported by the device frame 1 via a spline bridge 12, and the inner surface of the brush 1 is attached to the tip thereof.
3 is attached. The screw rod 14 is the spline shaft 1.
1 is rotatably supported by the apparatus frame 1 so as to extend in parallel with 1, and is rotated by a moving motor 15 via gears 16 and 17. The female screw body 18 is screwed onto the threaded rod 14 and is connected to the spline shaft 11 via a connecting body 19.

As shown in FIGS. 1 and 2, the inner surface brush 13 is always arranged at the retracted position on the outer side of the work W, and the screw rod 14 is moved by the moving motor 15.
Is rotated in one direction, the spline shaft 11 is moved to the work W side through the connecting body 19, the inner surface brush 13 is moved to the working position in the work W, and the moving motor 15 moves the screw rod. When 14 is rotated in the other direction, the spline shaft 11 is moved in a direction away from the work W, and the inner surface brush 13 is moved from the working position in the work W to the retracted position.

The rotating lever 20 is provided on the spline shaft 11 so as to be integrally rotatable and relatively movable.
The rotating cylinder 21 is arranged on the apparatus frame 1, and the tip of the rod is connected to the rotating lever 20. Then, when the rotation cylinder 21 is projectingly operated in a state where the inner surface brush 13 is inserted into the working position in the work W, the spline shaft 11 is rotated in the clockwise direction in FIG. When the inner surface brush 13 is rotated, the inner surface brush 13 is rotated from the hanging position shown by the solid line in FIG. 6 to the inclined position shown by the chain line, and is brought into contact with the inner peripheral surface of the work W being rotated in one direction. A coating agent such as an adhesive is applied to the.

As shown in FIG. 1, FIG. 2 and FIG. 7, the coating agent tank 22 is supported on the apparatus frame 1 so as to be able to move up and down through an elevating device 23, and inside thereof, a coating agent such as an adhesive agent is placed. It is housed. The lifting motor 24 is disposed on the device frame 1 and is operatively connected to the lifting device 23 via an operating shaft 25. Then, when the elevating motor 23 operates the elevating device 23 in a state where the inner brush 13 is arranged at the retracted position, the coating agent tank 22 is moved up and down to apply the coating agent to the inner brush 13. .

The solvent tank 26 is disposed on the apparatus frame 1 in the vicinity of the coating agent tank 22, and the solvent is contained in the inside thereof. The rail 27 is laid on the apparatus frame 1 at the side of the solvent tank 26 and extends in a direction orthogonal to the moving direction of the inner surface brush 13. The moving table 28 is movably supported along the rails 27, and is moved by the moving cylinder 29 provided on the apparatus frame 1 in the direction in which it comes in contact with and separates from the inner surface brush 13.

The hanging plate 30 is rotatably supported on the moving table 28, and is turned by a turning cylinder 31 provided on the moving table 28 via a turning lever 32. Then, the movable table 28 is always arranged at the retracted position shown by the solid line in FIG. 7, and the hanging plate 30 is arranged at the tilting position shown by the chain line in FIG. 7, and is immersed in the solvent in the solvent tank 26. The coating material is held on the surface of the drooping plate 30 so that the coating material does not adhere to the surface and cure.

Further, when the coating agent is applied to the inner surface brush 13 as the coating agent tank 22 moves up and down, the turning cylinder 31 moves the hanging plate 30 from the tilted position shown by the chain line to the horizontal position shown by the solid line. After being rotated, the moving table 28 is moved closer to the inner surface brush 13 side by the moving cylinder 29, and the excess coating agent attached to the inner surface brush 13 is drooped by the engagement with the drooping plate 30. This prevents the coating agent from dripping from the inner surface brush 13.

Next, the outer surface coating mechanism 4 and the end surface coating mechanism 5 will be described in detail with reference to FIGS. 1, 2 and 8 to 10.
As shown in FIG. 5, the rotation shaft 33 is rotatably supported by the apparatus frame 1 and extends in parallel behind the work W. The mounting block 34 is fitted and fixed to the rotating shaft 33,
A pair of mounting plates 35 and 36 are fixed to both side surfaces thereof. The outer surface brush 37 is attached to one of the mounting plates 35 in a positionally adjustable manner, and when the rotating shaft 33 is rotated by a predetermined angle, the outer surface brush 37 is attached to the outer periphery of the work W as shown by a chain line in FIG. It is arranged at a position in contact with and faces the surface, and the coating agent is applied to the outer peripheral surface thereof.

The three supports 38 are attached to the other mounting plate 36 so as to be positionally adjustable so as to correspond to one end surface of one mouthpiece Wa of the work W and both end surfaces of the other mouthpiece Wb, respectively. An end surface brush 39 is rotatably supported at the tip of the. The rotation cylinder 40 is provided on each support 38, and is operatively connected to the end face brush 39 via the rack 41 and the pinion 42.

The end face brush 39 is always shown in FIG.
When the rotating cylinder 40 is operated to project, the end face brush 39 is disposed at the inactive position shown by the solid line in FIG.
Is rotated from this non-acting position to the working position in the inclined state shown by the chain line in the figure. Further, when the rotation shaft 33 is rotated by a predetermined angle in the state where the end face brushes 39 are rotated to the working position in this way, as shown by the chain line in FIG. , Wb in contact with the end faces of Wb. Then, as shown in FIGS. 13 to 15, the rotation of the rotary actuator 80 causes the gears 81, 82 to rotate.
The cam 84 connected by the shaft 83 is rotated via the. By this rotation, the roller 8 fixed to the driven body 85
6 is actuated, and the driven body 85 is moved parallel to the shaft 33 against the spring 87. When the driven body 85 is moved, the fixing metal fitting 34 is also moved, the end face brush 39 is moved in parallel with the work W, and the coating agent is applied to the end faces of the mouthpieces Wa and Wb.

As shown in FIGS. 1, 2, 11, and 12, a pair of rails 43 are laid on the apparatus frame 1 and extend parallel to the rotating shaft 33. The movable plate 44 is movably supported along the rails 43, and a moving cylinder 45 provided on the apparatus frame 1 is used for the movement plate 44.
2 is moved in the left-right direction. The rack 46 is fixed to the upper surface of the moving plate 44 so as to extend in the moving direction.
6 on the device frame 1 so as to mesh with the pinion 47.
Are rotatably arranged. The gear transmission device 48 is provided between the pinion 47 and the rotation shaft 33, and when the pinion 47 is rotated via the rack 46 with the movement of the moving plate 44, the rotation shaft is transmitted via the gear transmission device 48. 33 is rotated.

Further, in this embodiment, the moving cylinder 45 is constructed so that the operating speed can be switched. Then, when the moving cylinder 45 is operated to project from the state shown in FIGS. 11 and 12,
The outer surface brush 37 and the end surface brush 39 supported on the rotating shaft 33, which are operated at a high speed for a predetermined time, move from the hanging position P1 shown by the solid line in FIG. 8 to the inclined position P2 shown by the chain line at a predetermined angle R1. It is rotated by fast-forwarding, and then the operating speed of the moving cylinder 45 is switched to a low speed, so that the outer-face brush 37 and the end-face brush 39 are slow-forwarded from the inclined position P2 to the substantially horizontal action positions P3, P4. Is rotated by.

The first stop screw 49 is attached to the upper surface of the moving plate 44 so that its position can be adjusted. The first stopper 50 is supported on the apparatus frame 1 so as to be able to move up and down so as to face the first stop screw 49, and is shown by a descent position and a chain line shown in FIG. 12 by a lifting cylinder 52. It is moved to the raised position. The second stop screw 53 is attached to the upper surface of the moving plate 44 so that its position can be adjusted, and a second stopper 54 is fixedly arranged on the apparatus frame 1 so as to face the second stop screw 53.

When the movable plate 44 is moved by a predetermined distance L1 from the original position shown in FIG. 12 with the first stopper 50 placed in the raised position, the first stop screw 49 causes the first stopper screw 49 to move. Engage 50. And
After the outer surface brush 37 and the end surface brush 39 are fast-forwarded and rotated from the drooping position P1 shown in FIG. 8 to the inclined position P2, the first brush
The end face brush 39 is first placed in contact with the end faces of the mouthpieces Wa and Wb of the work W to apply the coating agent to the end faces of the workpieces W and Wb.

After the coating operation on the end faces of the mouthpieces Wa and Wb is completed, the first stopper 50 is moved to the lowered position, and the moving plate 44 is further moved from the original position shown in FIG. 12 by a predetermined distance L2. Then, the second stop screw 53 engages with the second stopper 54, and the outer surface brush 37 and the end surface brush 39 move from the first action position P3 to the second operation position P3.
Further, the feed brush 37 is further rotated by a predetermined angle R3 to the action position P4, and then the outer surface brush 37 is placed in contact with the outer peripheral surface of the work W to apply the coating agent to the outer peripheral surface.

As shown in FIG. 2, the coating agent tank 55 is supported on the apparatus frame 1 so as to be able to move up and down through an elevating device 56, and the inside thereof contains a coating agent such as an adhesive. The lifting motor 57 is disposed on the device frame 1,
It is operatively connected to the lifting device 56 via an operating shaft 58. When the elevating device 57 is operated by the elevating motor 57 in a state where the outer surface brush 37 and the end surface brush 39 are arranged at the hanging positions shown in FIGS. 2, 8 and 10, the coating agent tank 55 is operated. Is moved up and down, and the coating agent is applied to the outer surface brush 37 and the end surface brush 39.

As shown in FIG. 1, hanging plates 59, 60
Faces the outer surface brush 37 and the end surface brush 39,
It is rotatably and movably arranged on the device frame 1. Then, the hanging plate 3 of the above-mentioned inner surface brush 13
Similar to 0, from the inclined position where the hanging plates 59 and 60 are immersed in the solvent in the solvent tank by the rotating cylinder 61,
After being rotationally arranged in the horizontal position, the moving cylinder 62 is moved together with the moving plate 63 from the retracted position toward the outer surface brush 37 and the end surface brush 39, and the brushes 3 are moved.
Excessive coating material applied to 7, 39 is dripped off to prevent the coating material from dripping from both brushes 37, 39.

Next, the operation of the coating apparatus having the above structure will be described. Now, in the coating apparatus of this embodiment, when the apparatus is started while the cylindrical work W is supported between the chuck 7 and the support roller 10 of the rotating mechanism 2, the rotating motor 6 of the rotating mechanism 2 causes The work W is rotated in one direction around its axis. Then, in this state, the coating agent in the coating agent tank 22 is applied to the inner surface brush 13 of the inner surface coating mechanism 3, and the hanging plate 30
And then the inner surface brush 13 is moved into the work W from one end of the work W to move the work W to the work W.
Is contacted with the inner peripheral surface, and the coating agent is applied to the inner peripheral surface.

Further, in parallel with the coating operation for the inner peripheral surface of the work W, the coating agent in the coating agent tank 55 is applied to the outer surface brush 37 of the outer surface coating mechanism 4 and the end surface brush 39 of the end surface coating mechanism 5. At the same time, it is cut off by the hanging plates 59 and 60. In this state, first, the end surface brush 39 is brought into contact with the end surfaces of the mouthpieces Wa and Wb of the work W, the coating agent is applied to those end surfaces, and then the outer surface brush 37 is brought into contact with the outer peripheral surface of the work W. The coating agent is applied to the outer peripheral surface thereof.

Therefore, in the coating apparatus of this embodiment, the coating material can be coated on the inner peripheral surface, the outer peripheral surface and the end surface of the workpiece W almost at the same time while the work W is supported at one place. Can be downsized, and the coating operation can be performed easily and efficiently.

The present invention is not limited to the configuration of the above-described embodiment, but can be modified and embodied as follows without departing from the spirit of the present invention. (1) As the inner surface coating mechanism 3, the outer surface coating mechanism 4, and the end surface coating mechanism 5, for example, other mechanisms such as spray coating of a coating agent are adopted. (2) The present invention is embodied in a cylindrical work W different from the withstand voltage insulating cylinder of the above-mentioned embodiment, and an adhesive, a paint or the like is applied to the inner peripheral surface, the outer peripheral surface and the end surface of the work W. To configure.

[0035]

Since the present invention is configured as described above, the coating agent is applied to the inner peripheral surface, the outer peripheral surface and the end surface of the cylindrical work substantially at the same time with the cylindrical work being supported at one place. Therefore, it is possible to reduce the size of the entire apparatus, and it is possible to perform the coating operation easily and efficiently, which is an excellent effect.

[Brief description of drawings]

FIG. 1 shows an embodiment of a coating apparatus embodying the present invention,
It is a top view which makes it a partial section.

FIG. 2 is a front view showing a partial cross section of the coating apparatus.

3 is a partially enlarged cross-sectional view taken along the line AA of FIG.

4 is a partial cross-sectional view showing an enlarged inner surface coating mechanism in the coating apparatus of FIG.

5 is a partial enlarged cross-sectional view taken along the line BB of FIG.

6 is a partially enlarged cross-sectional view taken along the line CC of FIG.

7 is a partially enlarged cross-sectional view taken along the line DD of FIG.

8 is a partially enlarged cross-sectional view taken along the line EE of FIG.

9 is a partial cross-sectional view taken along the line FF of FIG.

10 is a partial cross-sectional view taken along the line GG of FIG.

FIG. 11 is a partial plan view showing, in an enlarged manner, the operating configuration of the outer surface and end surface coating mechanism in the coating apparatus of FIG.

12 is a partial cross-sectional view taken along the line HH of FIG.

FIG. 13 is a partially cutaway front view showing the operating mechanism of the end face brush.

FIG. 14 is a side view showing an operating mechanism of the end face brush.

FIG. 15 is a view showing the action of the end face brush.

[Explanation of symbols]

1 ... Device frame, 2 ... Rotation mechanism, 3 ... Inner surface coating mechanism,
4 ... Outer surface coating mechanism, 5 ... End surface coating mechanism, 6 ... Rotation motor, 7 ... Chuck, 10 ... Support roller, 11 ... Spline shaft, 13 ... Inner surface brush, 15 ... Moving motor, 21 ...
Cylinder for rotation, 22 ... Coating agent tank, 37 ... Brush for outer surface,
Reference numeral 39 ... End face brush, 40 ... Rotating cylinder, 55 ... Coating agent tank, W ... Work, Wa ... One end side cap, Wb ... Other end side cap.

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[Procedure amendment]

[Submission date] June 22, 1993

[Procedure Amendment 1]

[Document name to be amended] Statement

[Correction target item name] 0021

[Correction method] Change

[Correction content]

Next, the outer surface coating mechanism 4 and the end surface coating mechanism 5 will be described in detail with reference to FIGS. 1, 2 and 8 to 10.
As shown in FIG. 3, the rotary shaft 33 is rotatably supported by the apparatus frame 1 and extends in parallel behind the work W. The mounting block 34 is fitted and supported on the rotating shaft 33,
A pair of mounting plates 35 and 36 are fixed to both side surfaces thereof. The outer surface brush 37 is attached to one of the mounting plates 35 in a positionally adjustable manner, and when the rotating shaft 33 is rotated by a predetermined angle, the outer surface brush 37 is attached to the outer periphery of the work W as shown by a chain line in FIG. It is arranged at a position in contact with and faces the surface, and the coating agent is applied to the outer peripheral surface thereof.

[Procedure Amendment 2]

[Document name to be amended] Statement

[Name of item to be corrected] 0023

[Correction method] Change

[Correction content]

The end face brush 39 is always shown in FIG.
When the rotating cylinder 40 is placed in the inactive position in the hanging state shown by the solid line in FIG.
9 is rotated from this inoperative position to the operative position in the inclined state shown by the chain line in the figure. Also, in this way, the end face brush 39
When the rotary shaft 33 is rotated by a predetermined angle in a state where the brush 39 is rotated to the operating position, each end face brush 39 contacts and faces the end faces of the mouthpieces Wa and Wb, as shown by a chain line in FIG. It is located in. Then, as shown in FIGS.
The rotation of the rotary actuator 80 causes the gears 81, 8 to rotate.
The cam 84 connected to the shaft 83 is rotated via the shaft 2. By this rotation, the roller 8 fixed to the driven body 85
6 is actuated, and the driven body 85 is moved parallel to the shaft 33 against the spring 87. By moving the driven body 85, the fixing metal fitting 34 is also moved, the end face brush 39 is moved in parallel with the work W, and the coating agent is applied to the end faces of the mouthpieces Wa and Wb.

Claims (1)

[Claims] 1. A rotation mechanism for supporting a cylindrical work and rotating the work about an axis, the rotation mechanism being provided so that the work can be taken in and out from an end of the work.
An inner surface coating mechanism that applies the coating agent to the inner peripheral surface of the workpiece, an outer surface coating mechanism that is provided to face the outer peripheral surface of the workpiece, and an outer surface coating mechanism that applies the coating agent to the outer peripheral surface of the workpiece, and to face the end surface of the workpiece And an end face coating mechanism that coats the end face of the work with the coating agent.