JPH0751227B2 - Primer applicator - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial application] The present invention relates to a coating apparatus for a primer as an adhesion auxiliary material.

[Prior Art] Conventionally, members such as metal parts, electrically insulating parts, and electric elements have been mounted in a ceramic tube or a sleeve by using a resin adhesive.

As shown in FIG. 7, this mounting method is carried out by applying a primer 67 to the inner peripheral surface 61b of the mounting cylindrical portion 61a of the tubular ceramics 61 and the outer peripheral surface of the member 63 such as an electric element, and to apply urethane rubber, silicon rubber or the like. The resin adhesive 64 is filled between these primer layers and bonded.

Here, the work of applying the primer 67 to the inner peripheral surface 61b has conventionally been performed by a spray method or a brush coating method.

[Problems to be Solved by the Invention] However, in the conventional method of applying the primer 67, not only the work efficiency is low because the work is performed manually, but also the applied amount of the primer becomes uneven, and the inner peripheral surface 61b There is a problem in that the adhesive strength of the adhesive portion of the adhesive material 64 becomes non-uniform, and when the adhesive surface is peeled off, moisture penetrates into the adhesive surface and the insulation strength decreases.

An object of the present invention is to provide a primer coating device capable of performing a primer coating operation on a cylindrical peripheral surface quickly and uniformly.

[Means for Solving the Problems] In order to achieve the above object, the invention according to claim 1 is a cylindrical coating roller made of a porous flexible material supported by a support shaft so as to be freely rotatable, and A coating roller revolving mechanism for revolving the support shaft and the coating roller; and a revolution radius automatic adjusting mechanism incorporated in the coating roller revolving mechanism for automatically adjusting the revolution radius of the coating roller during the revolving movement of the coating roller. An application roller elevating mechanism for elevating the application roller and a primer impregnating device for impregnating the application roller with a primer.

According to a second aspect of the present invention, the revolution radius automatic adjustment mechanism is configured such that it can reciprocate in the axial direction of the rotary cylinder supported by the shaft support cylinder and can rotate synchronously. Provided between a supported rotation support shaft, a rotation support shaft elevating mechanism which is provided on the side of the shaft support cylinder and moves the rotation support shaft up and down in the axial direction thereof, and between the lower ends of the rotation cylinder and the rotation support shaft. And a four-bar linkage mechanism for changing the position of the support shaft of the coating roller.

[Operation] In the invention according to claim 1, the coating roller elevating mechanism is operated, and the coating roller is applied to the cylindrical peripheral surface of the material to be processed without contact with the peripheral surface, and then is applied by the revolution radius automatic adjusting mechanism. The revolution radius of the roller is automatically adjusted to the position where it contacts the cylindrical peripheral surface. Further, the coating roller revolving mechanism is actuated so that the coating roller is in free contact while rotating, and the primer impregnated in the coating roller is coated on the cylindrical peripheral surface. As a result, the primer application work is performed quickly and uniformly over the entire cylindrical peripheral surface. If the coating roller has a structure in which the revolution radius cannot be changed automatically, when the coating roller contacts the cylindrical peripheral surface, the roller is moved in the direction parallel to the axial direction of the cylindrical peripheral surface. The roller is locally pressed against the leading edge of the roller, and as a result, not only the amount of primer applied becomes uneven, but also the wear of the roller itself is accelerated.

Furthermore, in the invention of claim 2, in addition to the operation of the invention of claim 1, the mechanism for automatically adjusting the revolution radius of the coating roller can be simplified.

[Embodiment] An embodiment of the present invention will be described below with reference to FIGS. 1 to 6.

As shown in FIG. 4, the transport mechanism 1 for transporting the main body insulator 61 as a material to be processed includes a support table 2 for supporting the main body insulator 61 at a predetermined position. A clamp air cylinder 4 is horizontally supported on a side portion of the transport mechanism 1 via a bracket 3, and a clamp metal fitting 5 attached to the rod clamps one side of the outer periphery of the mounting cylinder portion 61a. . A clamp air cylinder 8 is horizontally supported on the upper surface of the machine base 6 via a bracket 7, and a clamp metal fitting 9 attached to the tip of the rod clamps the outer peripheral side of the mounting cylinder portion 61a. There is.

A support cylinder 10 is erected on the upper surface of the machine base 6, and a rotary support table is provided on the top of the support cylinder 10 via a bearing 11.
12 is rotatably supported in the horizontal direction. A bracket 13 is provided on the upper surface of the machine base 6 to rotate the air cylinder.
The base end of 14 is rotatably supported in the horizontal direction, and the bearing cylinder 15a formed at the tip of the rod 15 of the cylinder 14 is horizontally supported by the connecting shaft 16 erected on the upper surface of the rotary support table 12. It is fitted so that relative rotation is possible. When the turning cylinder 14 is operated, the rotation support table 12 is rotated in the arrow (horizontal) direction in FIG.

A pair of columns 17 are erected parallel to each other on the upper surface of the rotation supporting table 12, lifting columns 18 are fitted to these columns 17, and a connecting plate 19 is connected between both columns 18, further,
The connecting plate 19 is vertically moved up and down together with the lifting cylinder 18 by a rod 21 of a lifting air cylinder 20 fixed to the rotation support table 12.

A mounting plate 22 is horizontally fixed to the upper end of the elevating cylinder 18, and a support fitting 23 is vertically fixed to the tip of the mounting plate 22 as shown in FIG.
A shaft support tube 24 is vertically fixed to the support fitting 23, and a rotary cylinder 26 is rotatably supported by the shaft support tube 24 via a bearing 25. A motor 27 is fixed to the lower surface of the mounting plate 22, and a belt 30 is hung between a drive pulley 28 of the motor 27 and a driven pulley 29 fitted and fixed to the upper end of the rotary cylinder 26 to rotate the motor. The cylinder 26 is rotated.

A rotary support shaft 31 is penetratingly supported inside the rotary cylinder 26 so as to be rotatable synchronously with the rotary cylinder 26 and relatively movable in the vertical direction by splines 26a and 31a. The rotating cylinder
The collar 32 is fitted and fixed to the outer peripheral portion of the lower end of the 26.
A first connecting link 33 is suspended and fixed to the lower surface of 32, and second and third connecting links 35 and 36 are connected to the connecting link 33 so as to be vertically rotatable. A fourth connecting link 37 is vertically connected to the tip ends of the two connecting links 35, 36 by a connecting pin 34. The upper end of the fourth connecting link 37 and the lower end of the rotation support shaft 31 are connected to each other. Fixed bracket
An operating link 39 is connected to the shaft 38 by connecting pins 34 and 40. When the rotary support shaft 31 is reciprocated in the vertical direction by the lifting mechanism K1 for the rotary support shaft 31, which will be described in detail later, the operation link 39 causes the first to fourth connection links 3
The fourth connection link 37 of the parallel four-bar linkage mechanism K2 composed of 3,35 to 37 is vertically reciprocated in the vertical state.

A support shaft 41 extending in the vertical direction is screwed and fixed to the lower end of the fourth connection link 37, and a support cylinder 42 is rotatably supported on the outer periphery of the support shaft 41 and is locked by a stopper bolt 43. On the outer periphery of the support cylinder 42, a thick-walled cylindrical coating roller 44 made of a porous flexible material such as urethane foam resin is supported together with the support cylinder 42 so as to be freely rotatable around the support shaft 41. There is. Reference numeral 45 is a stop ring for restricting the position of the coating roller 44. A bellows 46 is attached between the collar 32 and the connecting link 37 to cover the parallel four-bar link mechanism K2.

Next, the elevating mechanism K1 of the rotary support shaft 31 will be described with reference to FIG.

A bracket 47 is fixedly mounted on the upper surface of the mounting plate 22, an orbital radius adjusting air cylinder 48 of the coating roller 44 is fixed downward on the upper portion thereof, and a lifting case 50 is fixed on the lower end portion of the rod 49. A spherical body 52 fixed by a nut 53 screwed to the upper end of the rotary support shaft 31 is engaged with a spherical body receiving member 51 housed in the elevating case 50 so as to be relatively rotatable. And the rod of the air cylinder 48
When the lifting case 50 is moved up and down by 49, the rotation support shaft
As a result, the parallel four-node link mechanism K2 is operated by the operation link 39 in FIG. 1, and the central axis O1 of the rotation support shaft 31 which is the revolving center of the coating roller 44 causes The distance to the central axis O2 of the support shaft 41, that is, the revolution radius R of the coating roller 44 can be adjusted.

As is clear from the above description, in this embodiment, the rotary cylinder 26, the motor 27, the pulleys 28 and 29, the belt 30, the support shaft 3
1, the connecting link 37, the parallel four-bar link mechanism K2, and the like constitute the coating roller revolving mechanism K3 that revolves the coating roller 44, and the lifting mechanism K1, the rotation support shaft 31, and the coupling link 37.
Further, the parallel four-bar link mechanism K2 and the like constitute the revolution radius adjusting mechanism K4 of the coating roller 44. In addition, the pillar
17, the elevating cylinder 18, the elevating cylinder 20, the mounting plate 22 and the like constitute an elevating mechanism K5 for the coating roller 44.

In FIG. 4, when the lifting air cylinder 20 is operated, the mounting plate 22 is moved up and down to rotate the rotary cylinder 26, the motor 27, the rotary support shaft 31, the parallel four-bar linkage K2, the operating link 39, the support shaft. The members such as 41, the support cylinder 42, and the coating roller 44 are integrally reciprocated in the vertical direction.

In FIG. 6, when the rod 15 of the turning cylinder 14 is retracted, the rotation support table 12 is rotated in the clockwise direction in the drawing, and the mounting plate 22, the rotary cylinder 26, the motor 27, the drive Each member such as the pulley 28, the rotation support shaft 31, the parallel four-bar linkage K2, the operation link 39, the support shaft 41, the support cylinder 42, and the coating roller 44 is integrally rotated in the same direction, and the coating roller 44 is It is moved to a position corresponding to the primer impregnating device 54 installed on the side of the rotary support table 12. The primer 67 sprayed from the spray nozzle 55 of the primer impregnating device 54 is sprayed onto the outer peripheral surface of the coating roller 44 which is rotated by the motor 27 and vertically moved by the lifting cylinder 20. Against primer 67
Are uniformly impregnated.

Next, the primer 67 is applied to the inner peripheral surface 61b of the mounting cylinder portion 61 of the main body insulator 61 by the primer applicator configured as described above.
The step of applying is described.

First, as shown in FIG. 6, the application roller 44 is moved up and down while rotating the application roller 44 at a position corresponding to the injection nozzle 55 of the primer impregnating device 54, and the injection nozzle is ejected.
The primer 67 is sprayed onto the outer peripheral surface of the roller 44 by 55 to impregnate the roller 44 with the primer 67 in a predetermined amount.

Next, the rod 15 of the turning cylinder 14 is moved forward in FIG. 6 to rotate the rotation support table 12 counterclockwise, and the application roller 44 is stopped moving above the mounting cylinder portion 61a.

Next, the rod 21 of the ascending / descending cylinder 20 is moved downward so that the coating roller 44 enters the mounting cylinder portion 61a. (See FIGS. 1 and 4) Further, the rod 49 of the revolving radius adjusting siritan 48 is raised to raise the rotary support shaft 31, the fourth connecting link 37 is raised via the operating link 39, and the coating roller 44 The radius R of revolution is increased to bring the outer peripheral surface 44a of the coating roller 44 into contact with the inner peripheral surface 61b of the mounting cylinder portion 61a. In this state, the motor 27 is operated to rotate the coating roller 44 and the central axis of the support shaft 31.
When revolved around O1, the coating roller 44 revolves around the center axis O2 of the support shaft 41 while freely rotating.
The primer 67 impregnated in the coating roller 44 is attached to the mounting cylinder 61a.
Is applied to the inner peripheral surface 61b of the.

The primer 67 can be applied to the entire inner peripheral surface 61b by operating the elevating cylinder 20 and elevating the applying roller 44 while the revolving movement of the applying roller 44 is continued.

The present invention can also be embodied as follows.

In the above embodiment, the primer 67 is provided on the inner peripheral surface 61b of the mounting cylinder portion 61a.
In addition to this, the primer 67 is applied to the outer peripheral surface of a cylindrical work material (not shown) while revolving the application roller 44 while revolving, or a ceramic tube is applied. It is also used to apply a primer to the inner or outer peripheral surface of various members other than 61.

[Effects of the Invention] As described in detail above, the present invention has an excellent effect that the primer can be quickly and uniformly applied to the cylindrical peripheral surface of the work material and that the abrasion of the application roller can be suppressed. .

In addition to the effect of the invention of claim 1, the invention of claim 2 has an excellent effect that the mechanism for adjusting the revolution radius of the coating roller can be simplified.

[Brief description of drawings]

FIG. 1 is a longitudinal sectional view showing a main part of a primer coating apparatus of the present invention, FIG. 2 is a sectional view taken along the line AA of FIG. 1, FIG. 3 is a left side view of FIG. 1, and FIG. FIG. 5 is a front sectional view showing the entire primer coating apparatus, FIG. 5 is a vertical sectional view showing an elevating mechanism of a rotary support shaft, FIG. 6 is a sectional view taken along the line BB of FIG. 4, and FIG. FIG. 6 ... Machine stand, 10 ... Support cylinder, 12 ... Rotation support table, 14 ... Rotating air cylinder, 17 ... Strut, 18 ... Lifting cylinder, 20 ... Lifting air cylinder, 22 ... … Mounting plate, 24 …… Spindle, 26 …… Rotating cylinder, 27 …… Motor, 31
...... Rotary support shaft, 33 …… Mounting member, 34,36,40 …… Connecting pin, 35,37 …… Connecting link, 39 …… Actuating link, 41 ……
Support shaft, 42 ... Support cylinder, 44 ... Coating roller, 48 ... Revolution radius adjusting air cylinder, 50 ... Lifting case, 51 ... Sphere receiving member, 52 ... Sphere, 54 ... Primer impregnating device, 55
...... Injection nozzle, 61 …… Ceramic tube, 61a …… Mounting cylinder part, 61b …… Inner peripheral surface, 67 …… Primer, O1 …… Center axis of rotating support shaft 31, O2 …… Center axis of support shaft 41 , R ……
Revolution radius of coating roller 44, K1 ... Lifting mechanism of rotation support shaft 31, K2 ... Parallel four-bar link mechanism, K3 ... Revolving mechanism of coating roller, K4 ... Revolution radius adjusting mechanism, K5. Lifting mechanism.

Claims (2)

[Claims] 1. A cylindrical coating roller made of a porous flexible material supported by a supporting shaft so as to be freely rotatable, a coating roller revolving mechanism for revolving the supporting shaft and the coating roller, and a coating roller revolving mechanism. A revolving radius automatic adjusting mechanism that is incorporated and that automatically adjusts the revolving radius of the coating roller during the revolving movement of the coating roller; a coating roller elevating mechanism that raises and lowers the coating roller; A primer coating device comprising a primer impregnating device for impregnating a primer. 2. The automatic revolution radius adjusting mechanism according to claim 1, wherein the rotary cylinder is supported by a shaft support cylinder, and is capable of reciprocating in the axial direction of the rotary cylinder and synchronously rotatable. Provided between a supported rotation support shaft, a rotation support shaft elevating mechanism which is provided on the side of the shaft support cylinder and moves the rotation support shaft up and down in the axial direction thereof, and between the lower ends of the rotation cylinder and the rotation support shaft. And a four-bar linkage mechanism for changing the position of the support shaft of the coating roller.