JP3280564B2 - Glazing method and apparatus for insulator corners - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method and an apparatus for glazing an insulator corner used in a manufacturing process of an insulator, and more particularly to a method for glazing an insulator corner suitable for manufacturing a suspended insulator with a conductive glaze. The present invention relates to a method and an apparatus.

[0002]

2. Description of the Related Art A cap metal is fixed to a head of an insulator by cement. For this purpose, first, a glaze is applied to an outer periphery of the head of the insulator, and ceramic particles called sand are adhered to the head. A method of filling a cement with a cap fitting on the surface is used. In order to apply glaze to the insulator head for this purpose, conventionally, a sponge roller impregnated with glaze was pressed against the head G1 of the rotating insulator G as shown in the left half of FIG. .

According to this conventional method, a cylindrical head G
Since no glaze could be applied to No. 1 without any problem, there was no problem in the production of ordinary insulators. However, in the manufacturing process of a special insulator called a conductive glaze insulator, as shown in the right half of FIG. In addition, it is necessary to adhere a conductive sand also to a corner portion C between the insulator head G1 and the cap portion G2. For this purpose, it is necessary to apply a glaze to the corner portion C, but it was impossible to apply a glaze to the curved corner portion C with the above-mentioned sponge roller.

When the above-mentioned sponge roller is forcibly pressed against the corner C to glaze the corner C,
The sponge roller is gradually plastically deformed, and there is a problem that the thickness of the conductive sand becomes uneven because uniform glaze cannot be obtained.

[0005]

SUMMARY OF THE INVENTION The present invention solves the above-mentioned conventional problems and provides an insulator corner portion in which a glaze can be uniformly applied to the corner portion between the insulator head and the shade portion. It has been made to provide a glaze method and apparatus.

[0006]

Means for Solving the Problems A method for glaze on a corner portion of an insulator according to the present invention, which has been made to solve the above problems, is as follows.
A thin disk-shaped glazing roller made of a porous material impregnated with glaze is elastically attached to the corner between the rotating insulator's head and shade, inclined to the axis of the insulator. And glaze is attached to the entire periphery of the insulator corner. In addition, the glaze device for the corner portion of the insulator according to the present invention comprises an arm having a thin disk-shaped glaze roller made of a porous body at the tip, and an insulator on which the glaze roller rotates and a parent roller for glaze supply. The arm is provided with tilting means for inclining the glaze roller with respect to the insulator axis, and elastic means for elastically contacting the glaze roller with the insulator corner. It is characterized by having been provided.

[0007]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Preferred embodiments of the present invention will be described below with reference to the drawings. In FIG. 1, G is an insulator (suspension insulator) mounted on a table (not shown) and rotated around its axis, and 1 is a vertical oscillating shaft provided on its side. A horizontal arm 2 is attached to the lower end of the swing shaft 1 via a horizontal shaft 3. Therefore, when the side lever 5 of the arm 2 is pulled up by the tilt cylinder 4 constituting the tilting means, the arm 2
Can be rotated from the state of FIG. 1 to the state of FIG.

A bracket 7 is pivotally supported by a pin 6 at the tip of the arm 2, and a thin disk-shaped glaze roller 8 made of a porous material is rotatably supported at the tip of the bracket 7. The glaze roller 8 is made of, for example, a disc-shaped sponge rubber, and both surfaces thereof are sandwiched between metal plates 9. A fork 10 extending laterally is provided integrally with the base of the bracket 7, and the tip of a piston rod 12 of a pressing cylinder 11 is penetrated through the fork 10.

When the piston rod 12 is extended toward the fork 10 as shown in FIG. 3, the bracket 7 is provided with elastic means 13 such as rubber bands provided between the bracket 7 and the arm 2.
As a result, the pin 6 rotates around the pin 6, and the glaze roller 8 at the tip thereof contacts the insulator G. Conversely, when the piston rod 12 is contracted, the stopper 14 at the tip of the piston rod 12 engages with the fork 10, so that the bracket 7 rotates in the opposite direction about the pin 6 as shown in FIG. Are separated from the insulator G. The use of a rubber band as the elastic means 13 has an advantage that the elasticity can be easily adjusted, but an appropriate means such as a rotary torque damper can also be used.

Reference numeral 15 denotes a main roller for supplying glaze, which is provided at a position behind the insulator G, and is rotated by a motor 16. A brush 18 is provided on the side of the brush 17 which can be advanced and retracted by a cylinder 17 so that excess glaze can be removed from the surface of the parent roller 15 and can flow down to a lower glaze receiver (not shown). A glaze is always supplied to the parent roller 15. The arm 2 swings in a horizontal plane about the oscillating shaft 1 so that the glaze roller 8 at the tip of the arm 2 moves between a position in contact with the parent roller 15 and a position in contact with the insulator G. Can be.

In order to glaze the corner portion C of the insulator G with the glaze apparatus of the present invention configured as described above, first, the glaze roller 8 is brought into contact with the parent roller 15 and glaze is applied to the glaze roller 8.
Impregnated. At this time, the glaze roller 8 is in a horizontal state. Next, as shown in FIG. 1, the glaze roller 8 is moved to the insulator G side, and the arm 2 is tilted about the horizontal axis 3 by the tilt cylinder 4 as shown in FIG. Are also inclined with respect to the axis of the insulator G.

At the same time, when the piston rod 12 of the pressing cylinder 11 is extended, the bracket 7 is rotated by the force of the elastic means 13 about the pin 6 as described above, and as shown in FIG. Corner C
Resiliently contact while inclined. Since the insulator G is rotating, the glaze roller 8 follows and rotates so as to glaze the impregnated glaze on the corner C of the insulator G over the entire circumference. Since the contact pressure at this time can be freely adjusted by the elastic means 13, it is possible to apply the glaze uniformly without excessively deforming the glazing roller 8. When the glaze on the corner C of the insulator G is completed in this way,
The glaze roller 8 is returned to the horizontal position again, the arm 2 is rotated, the glaze roller 8 is brought into contact with the parent roller 15, and glaze is supplied, and the same process is repeated.

[0013]

As described above, according to the present invention, since the glaze can be uniformly applied to the corner between the insulator head and the cap, the conductive sand is adhered to the corner. It is suitable for manufacturing a conductive glaze suspension insulator that needs to be formed.

[Brief description of the drawings]

FIG. 1 is a perspective view of the device of the present invention.

FIG. 2 is a plan view of a main part of FIG. 2;

FIG. 3 is a perspective view of a glaze state of the apparatus of the present invention.

FIG. 4 is a plan view of a main part of FIG. 3;

FIG. 5 is a side view of a conventional example.

[Explanation of symbols]

G insulator, G1 head, G2 cap, C corner,
1 swing axis, 2 arms, 3 horizontal axes, 4 tilt cylinders, 5 side levers, 6 pins, 7 brackets, 8
Glazed roller, 9 metal plate, 10 fork, 11 pressing cylinder, 12 piston rod, 13 elastic means, 14 stopper, 15 parent roller, 16 motor,
17 cylinders, 18 brushes

Claims (2)

(57) [Claims] 1. A thin disk-shaped glaze roller made of a porous material impregnated with glaze is inclined at a corner between a head and a shade of a rotating insulator with respect to an axis of the insulator. A method for applying glaze to insulator corners, wherein the glaze is adhered to the entire periphery of the insulator corners by elastically contacting the insulator corners. 2. An arm provided with a thin disk-shaped glaze roller made of a porous material at its tip so as to be movable between an insulator on which the glaze roller rotates and a parent roller for glaze supply. In addition, the arm corner is provided with a tilting means for tilting the glaze roller with respect to the axis of the insulator and an elastic means for elastically contacting the glaze roller with the insulator corner. Glazing equipment for the department.