JPH11343583A - Automatic glazing device and glazing method of inner peripheral face of cylindrical object to be glazed with automatic glazing device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To automatically and mechanically glaze an inner face of an object to be glazed of a small quantity and many kinds such a large-sized vessel by mounting an elevating/lowering body insertable into an inside of a cylindrical object to be glazed to a support column freely in the vertical movement and disposing a spray gun jetting a glaze on the tip side freely rotatably. SOLUTION: An elevating/lowering 4, which is an arm of a device main body 1, is mounted to a support column 3 erected on a base 2. The body 4 is capable of elevating and lowering along the support column 3 by driving of a motor 6 and movable back-and-forth by a rack, and a pinion. Further a spray gun 5 is rotatably mounted to a tip side of the body 4 through a small arm 4a. The spray gun 5 can jet a glaze by connecting to a graze forcibly feeding tube, a graze spraying air tube, etc. The grazing by an automatic grazing device 11 is conducted by adjusting a height, etc., of the body 4, inserting the spray gun 5 into the cylindrical object to be glazed and adjusting it at an inclined angle corresponding to a shape of a barrel part and a bottom face and jetting the graze while rotating the object to be grazed.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

The present invention relates to an automatic glazing device,
A method for glazing the inner peripheral surface of a cylindrical object to be glazed using the automatic glazing device, more specifically, an automatic glazing device for automatically applying glass lining to an inner surface of, for example, a chemical reaction tank or a stirring tank, and the like. The present invention relates to a method for automatically glazing the inner peripheral surface of a cylindrical object to be glazed such as a chemical reaction tank or a stirring tank using an apparatus.

[0002]

2. Description of the Related Art Conventionally, when glass lining is automatically applied to the inner surface of a chemical reaction tank or a stirring tank as described above,
An operator holding a spray gun for glaze entered the inside of a chemical reaction tank or the like and sprayed the spray gun to perform glaze manually.

[0003]

Therefore, the operation is complicated, and a certain amount of skill is required to spray the glass lining layer substantially uniformly, and since it is a manual operation, a skilled worker is required. However, there was a limit to spraying almost uniformly.

[0004] Further, since the worker performs the work by manually spraying the spray gun, the influence on the human body cannot be ignored.

Therefore, mechanically, without manual work
It was requested that the glaze be performed automatically.

On the other hand, in the technique of enamel and the like, there is a technique called a dipping method in which a glaze is put in a case-shaped object to be glazed and rotated, for example, to glaze the inner surface side of a microwave oven.

The so-called electrostatic glaze method of charging a glass powder, spraying the charged powder on a metal surface, and attaching the powder to the metal surface by static electricity is also used as an enamel technique.

Further, a method of applying glaze to an enamel bathtub or the like using an articulated robot is employed.

However, these glazing means are all employed as enamel techniques for relatively small objects that can be mass-produced, and are used for large-sized glass linings, especially for chemical reaction tanks and stirring tanks. The inner surface of the tank needs to be glazed, and it cannot be applied to a small quantity and many kinds of objects that are manufactured one by one without mass production.

SUMMARY OF THE INVENTION The present invention has been made to solve all of the above problems, and it is necessary to apply a small amount of a variety of products which need to glaze the inner surface of a large tank such as a chemical reaction tank or a stirring tank as described above. An object of the present invention is to provide an automatic glazing device that can automatically and mechanically perform glass lining on an object.

[0011]

In order to solve the above problems, the present invention has been made as an automatic glazing apparatus and a method for glazing the inner peripheral surface of a cylindrical object to be glazed using the automatic glazing apparatus. The feature of the automatic glazing device is that it is an automatic glazing device for glazing the inner peripheral surface of a cylindrical glazed object, which can be inserted inside the cylindrical glazed object and can be moved up and down freely. The elevating body thus configured is provided in the apparatus main body 1, and a spray gun 5 capable of discharging glaze is attached to the tip side of the elevating body 4.

As the apparatus main body 1, for example, a base 2
And a support 3 erected on the base 2 and an elevating body 4 attached to the support 3 so as to be able to move up and down.

The elevating body 4 not only moves up and down, but also
It is also possible to configure so as to be movable back and forth.

A feature of the method for glazing the inner peripheral surface of the cylindrical object to be glazed using an automatic glazing device is that a spray capable of discharging glaze is provided on the tip side of a vertically movable body 4 which is vertically movable. After the elevating body 4 of the automatic glazing device configured with the gun 5 attached is moved up and down in accordance with the position of the opening of the cylindrical object to be glazed, the position of the spray gun 5 is set.
Inserting the spray gun 5 into the cylindrical object to be glazed, rotating the cylindrical object to be glazed, and spraying glaze from the spray gun 5 to apply the inner peripheral surface of the cylindrical object to be glazed. is there.

It is preferable that the rotation of the cylindrical object to be glazed is intermittently performed in both forward and reverse directions.

If the cylindrical object to be glazed has a face-shaped body and a curved bottom, the spray gun 5 is directed downward with respect to the body. It is preferable that the spray is sprayed on the bottom portion while changing the inclination angle of the spray gun 5.

[0017]

Embodiments of the present invention will be described below with reference to the drawings.

In FIG. 1, reference numeral 1 denotes an apparatus main body of an automatic glaze apparatus. This apparatus main body 1 includes a base 2, a support 3 erected on the base 2, and a vertically movable support 3 on the support 3. And an arm 4 mounted to be movable back and forth.

The arm 4 is suspended by a chain (not shown) and can be moved up and down, and can be moved back and forth by a rack and a pinion (not shown).

Then, the arm 4 of the apparatus main body 1 is used.
The spray gun 5 is attached to the front end of the device through a small arm 4a.

Reference numeral 6 denotes a motor for driving the arm 4 to move up and down.

The arm 4 is formed in the shape of a rectangular tube. Inside the arm 4, although not shown, a tube for pumping upper glaze, a tube for pumping lower glaze, and a tube for pumping glaze blowing air are provided. ing.

In FIG. 2, reference numeral 5a denotes a tip of the spray gun 5, in which a glaze channel 8 is formed in the center, and air channels 9 are formed on both sides.

Reference numeral 10 denotes a discharge port at the tip, and 8a denotes a needle.

A case will be described in which the automatic glaze apparatus 11 having such a configuration is used for glazing the glass lining of the reaction tank.

First, as shown in FIG. 3, the spray gun 5 attached to the tip of the arm 4 of the automatic glaze apparatus 11 is inserted from the inlet 13 of the reaction tank 12.

In this case, first, the arm 4 is moved up and down with respect to the column 3, and the height of the arm 4 is adjusted so that the spray gun 5 is inserted from the inlet 13 of the reaction tank 12.

Next, as shown in FIG. 4, the small arm 4a is rotated 90 degrees with respect to the arm 4, and the spray gun 5 is positioned downward.

Further, as shown in FIG. 5, the spray gun 5 is rotated by 90 degrees with respect to the small arm 4a to be positioned in a horizontal direction.

In this state, glaze is sprayed from the spray gun 5 and the reaction tank 12 to be glazed is rotated in the forward direction (the direction of the arrow A in FIG. 6).

The reaction tank 12 is mounted on four rolling elements 14,..., And by driving the rolling elements 14 serving as driving wheels among the four rolling elements 14,. It can be rotated.

Then, after the reaction tank 12 is rotated once at the same time as the spraying of the glaze, the rotation of the reaction tank 12 is temporarily stopped, and then, from the state where the spray gun 5 is turned horizontally, as shown in FIG. The glaze is sprayed while rotating the reaction tank 12 in the reverse direction (the direction of arrow B in FIG. 5) in this state by inclining it a predetermined angle (9 degrees in this embodiment) so as to be slightly downward.

Then, the spray gun 5 is sequentially rotated by a predetermined angle (9 degrees) to maintain the spray gun 5 in the inclined state at the predetermined angle, and the reaction tank 12 is intermittently moved in both the forward and reverse directions as described above. Spray glaze from spray gun 5 while rotating.

As described above, when the rotation of the reaction tank 12 and the spraying of the glaze are sequentially repeated while changing the inclination angle of the spray gun 5 by a predetermined angle, the glaze is suitably applied to the bottom 16 of the reaction tank 12. The Rukoto.

In this case, the bottom 16 of the reaction tank 12
Because it is formed on an elliptical arc surface instead of an arc surface,
When the glaze is sprayed by changing the inclination angle of the spray gun 5 by a predetermined angle as described above, the distance from the discharge port of the spray gun 5 to the wall surface of the bottom 16 of the reaction tank 12 changes.

Accordingly, when the amount of the glaze discharged from the spray gun 5 is the same, the thickness of the glaze to be applied increases as the distance from the spray gun 5 to the bottom wall surface of the reaction tank decreases. It will be.

As a result, the thickness of the glass lining tank may become uneven at the bottom of the reaction tank.
It is necessary to change the amount of the glaze discharged from the spray gun 5 according to the distance to the bottom wall surface of the reaction tank.

For example, as shown in FIG.
When is located horizontally, the distance to the bottom wall surface of the reaction tank is the shortest, so the discharge amount needs to be reduced.

As described above, by changing the amount of the glaze discharged from the spray gun 5 in accordance with the distance to the bottom wall of the reaction tank, the thickness of the glaze applied to the bottom of the reaction tank can be made substantially uniform. You can.

The setting of the position of the spray gun 5 according to the distance to the bottom wall surface of the reaction tank as described above
This is done by an ultrasonic displacement sensor attached to the device.

Therefore, the position of the spray gun 5 can be automatically set even if the worker does not enter the inside of the reaction tank.

Next, after finishing the glaze work on the bottom part 16 of the reaction tank 12, the glaze work is performed on the inner circumferential surface of the body part 15 of the reaction tank 12.

At the time when the glaze work on the bottom 16 of the reaction tank 12 as described above is completed, the spray gun 5 is in the downward state, but in this state, the spray gun 5 is sprayed onto the inner peripheral surface of the bottom 16. Similarly, the glaze is sprayed from the spray gun 5 while rotating the reaction tank 12 intermittently in both the forward and reverse directions and moving the arm 4 back and forth.

As described above, the glaze is applied to the circumferential inner surface of the body 15 of the reaction tank 12 by intermittently rotating the reaction tank 12 in both the forward and reverse directions and moving the arm 4 toward the near side. Will be done.

In this case, since the reaction tank 12 is intermittently rotated in both the forward and reverse directions, no uncoated portion is formed even at the beginning of spraying, and the reaction tank 12 can be rotated by rotating it many times. There is no displacement with respect to the moving body 14, and therefore, there is no possibility that the reaction tank 12 may drop carelessly from the rolling body 14.

Next, in this embodiment, a fixed-rate supply pump (not shown) is provided separately from an externally provided tank (not shown) for pumping the glaze. Is provided, the highly viscous glaze can be suitably pumped to the spray gun 5 provided on the distal end side of the arm 4.

There are two types of glaze applied to the inner peripheral surface of the reaction tank 12 by the above glaze work, a lower glaze and an upper glaze. And bottom 16
After being applied on the inner peripheral surface of the reactor, it is baked, then cooled, repaired, etc., and then the upper glaze is applied on the inner peripheral surface of the body 15 and bottom 16 of the reaction tank 12 in the same manner. Becomes

Note that the glaze work by the automatic glaze apparatus as described above is performed only on the inner peripheral surface of the body 15 and the bottom 16 of the reaction tank 12, but not on the upper side.

This is because, at the upper side of the reaction tank 12, a shaft sealing portion,
This is because the openings such as the raw material inlet and the steam outlet are formed, and it is recognized that automatic glazing work is difficult.

Therefore, the upper side of the reaction tank 12 is subjected to a manual glazing work as in the prior art.

As the glaze, a glaze composed of glass powder, clay, an electrolyte such as sodium nitrite, and water is used.

With the above operation, the glaze work of the reaction tank by the automatic glaze apparatus is completed. However, since the glaze itself has high viscosity and the tube may be clogged, it is necessary to clean the inside of the tube.

More specifically, the discharge port 10 of the spray gun 5 is closed, and the glaze remaining and adhering in the tube in that state is flowed back along the glaze flow path 8 by air pressure from the flow path 9. Let it.

Thereafter, the glaze in the flow channel is washed and removed by spraying water through the flow channel 8.

Here, if the water used for cleaning remains in the flow path 8 of the glaze, the flow path may be rusted, so that the water is blown off by air.

In addition, apart from the automatic glazing device described above,
A dust suction duct 17 as shown in FIG. 9 may be provided in the reaction tank.

The dust suction duct 17 comprises a bellows-like hose 18 and a suction port 19 attached to the end thereof as shown in FIG. 5 is for removing dust that has been sprayed from and has not adhered to the inner wall of the reaction tank 12.

That is, the glaze dust that has not adhered to the inner wall of the reaction tank 12 is suctioned and removed by the dust suction duct 17, thereby improving the quality of the glass lining product.

In the above embodiment, the base 2, the column 3 erected on the base 2, and the arm 4 attached to the column 3 so as to be able to move up and down and move back and forth. Although the main body 1 is configured, the structure of the apparatus main body 1 is not limited to this. In short, a spray gun 5 capable of discharging glaze can be attached to the tip side like the arm 4. It suffices if an elevating body that can elevate and lower according to the height of the substantially cylindrical object to be glazed is provided.

In this embodiment, after the arm 4 of the apparatus main body 1 is inserted into the inside of the reaction tank 12 which is the object to be glazed,
By moving the arm 4 back and forth, the position where the glaze should be applied was set inside the reaction tank 12, but conversely, the position of the arm 4 of the apparatus main body 1 was kept fixed, By moving the mounting table 21 on which the reaction tank 12 is mounted, it is possible to set a position where the glaze should be applied inside the reaction tank 12.

In this case, since the mounting table 21 is provided with the casters 22, the casters 22 can be easily moved by rolling.

Further, in the above embodiment, since the reaction tank 12 which is the object to be glazed is intermittently rotated in both the forward and reverse directions, no uncoated portion is formed. Although the preferred effect of preventing displacement was obtained, it was also possible to perform the glaze work while rotating only in the same direction without rotating in this way.

In the above-described embodiment, since a fixed-quantity supply pump is provided separately from the tank provided outside the apparatus main body 1, highly viscous glaze is suitably pumped to the spray gun 5 on the tip side of the arm 4. Although the preferred effect of the present invention was obtained, the provision of such a metering pump is not an essential condition of the present invention.

Further, in the above embodiment, the case where the reaction tank 12 is used as the object to be glazed has been described. However, the type of the object to be glazed is not limited to this. In addition, the present invention can be applied to various kinds of chemical machines that require glass lining.

In the present invention, the main purpose is to provide glaze with glass lining. However, the present invention is not limited to glass lining, and it is also possible to apply the present invention to a glaze to be glazed with enamel.

The point is that it is only necessary that an approximately cylindrical object to be glazed on the inner peripheral surface is used as the object to be glazed.

Further, in the above embodiment, when the bottom 16 of the reaction tank 12 is glazed, the angle of inclination of the spray gun 5 is sequentially changed by 9 degrees, and the glaze is sprayed from the spray gun 5 at the angle of inclination. This angle is not limited to 9 degrees in this embodiment, but can be arbitrarily changed according to the distance from the spray gun 5 to the bottom 16 of the reaction tank 12 and the curvature of the bottom.

In this embodiment, since the present invention is applied to an object to be glazed having a curved bottom 16 like the reaction tank 12, it is necessary to spray the glaze while changing the angle of the spray gun 5 as described above. However, in the case of an object to be glazed which does not have such a curved portion but has only a facing portion such as the body 15 of the reaction tank 12, the spray gun 5 needs to be tilted. There is no.

Therefore, it is not an essential condition of the present invention to apply the glaze while changing the inclination angle of the spray gun 5.

Further, in this embodiment, as a glaze, glass powder, clay, electrolyte (sodium nitrite),
Although a material consisting of water was used, the type of glaze is not limited to this. Arbitrary ones can be used according to the type of glass lining, enamel and the like.

Further, in the above-described embodiment, two kinds of glazes, upper glaze and lower glaze, are applied in order to glass-line the reaction tank 12, so that two glaze steps are required.
It is not an essential condition to apply the glaze twice as described above. If the upper and lower glazes are not required, only one glaze step may be performed.

Further, in order to obtain the performance such as corrosion resistance required for the glass lining, three or more glaze steps may be performed.

Further, in the above embodiment, the glaze was sprayed and washed with water, and the remaining water was discharged with air. However, such a step of cleaning and discharging with air is not an essential step of the present invention. .

[0074]

As described above, according to the present invention, the elevating body of the automatic glaze apparatus having the spray gun attached to the tip side of the elevating body is adjusted to the position of the opening of the cylindrical glaze object. After setting the position of the spray gun by moving it up and down, insert the spray gun into the cylindrical glaze, rotate the cylindrical glaze, and spray the glaze from the spray gun, fix the spray gun position By injecting the liquid in this state, the entire circumference of the inner peripheral surface of the rotating cylindrical object to be glazed is automatically glazed.

For this reason, a spray gun for glazing can be used in the conventional manner even for a large number of varieties to be glazed such as a chemical reaction tank and a stirring tank, which need to glaze a large, closed inner surface. There is no need for the grasped worker to enter the interior and apply the glaze manually, and the work is not required to be skilled, and the glaze can be mechanically and automatically applied by an external operation. There is.

Further, since only the object to be glazed is rotated and the spray can be sprayed while the spray gun is positioned at a fixed height, there is no variation in the discharge amount due to fluctuations in the head pressure. There is an effect that it can be applied with a suitable thickness.

Also, the device has a simple structure and has the effect of reducing the number of failures.

Further, when the elevating body is configured to be movable back and forth, there is an effect that the inner peripheral surface of the object to be glazed can be glazed while the object to be glazed is positioned.

Further, when the cylindrical glaze is rotated intermittently in both the forward and reverse directions, there is no uncoated portion as compared with the case where the glaze is rotated only in one direction. In addition, there is an advantage that the glaze is not displaced.

Further, when spraying while changing the inclination angle of the spray gun, even if the object to be glazed has a curved bottom, such as a reaction tank, the curved portion may be used. There is an advantage that glaze can be applied so as to conform to the above.

[Brief description of the drawings]

FIG. 1 is a schematic front view of an automatic glaze apparatus according to one embodiment.

FIG. 2 is an enlarged sectional view showing the structure of the tip of the spray gun.

FIG. 3 is a schematic front view showing a state where a spray gun is inserted into a reaction tank.

FIG. 4 is a schematic front view showing a state where a small arm and a spray gun are inclined downward.

FIG. 5 is a schematic front view of a main part showing a state when spraying the bottom of the reaction tank.

FIG. 6 is a schematic side view showing a state in which a reaction tank is rotated.

FIG. 7 is a schematic front view of a main part in a state where the spray gun is rotated downward.

FIG. 8 is a schematic front view of a main part showing a state when spraying the body of the reaction tank.

FIG. 9 is a schematic front view of a dust suction duct.

[Explanation of reference numerals] 1 ... Main body 4 ... Arm 5 ... Spray gun

 ──────────────────────────────────────────────────続 き Continued on the front page (72) Inventor Hideo Ueda 1168-1 Tsuchiyama, Hiraoka-cho, Kakogawa-shi, Hyogo Liber Tsuchiyama II709 (72) Inventor Akihiko Koga 2-26-3, Sumiyoshi, Uozumi-cho, Akashi-shi, Hyogo Shinko Pantetsu Co., Ltd. Uozumi Dormitory

Claims (6)

[Claims] 1. An automatic glazing apparatus for glazing the inner peripheral surface of a cylindrical glazed object, comprising an elevating body that can be inserted into the cylindrical glazed object and that is configured to be vertically movable. An automatic glazing device which is provided in the device main body (1), and is provided with a spray gun (5) capable of discharging glaze attached to a tip side of the elevating body (4). 2. An apparatus body (1) comprising: a base (2);
(2) It is composed of a column (3) erected on the upper side, and an elevating body (4) attached to the column (3) so as to be able to move up and down.
Automatic glazing device as described. 3. The automatic glazing device according to claim 1, wherein the lifting body is configured to be movable back and forth. 4. An elevating body (4) of an automatic glazing device comprising a spray gun (5) capable of discharging glaze is attached to a tip side of an elevating body configured to be vertically movable. After setting the position of the spray gun (5) by elevating and lowering it according to the position of the opening of the glaze, the spray gun (5)
Is inserted into the cylindrical object to be glazed, the cylindrical object to be glazed is rotated, and the glaze is sprayed from the spray gun (5).
A method of glazing the inner peripheral surface of a cylindrical glazed object using an automatic glazing device, wherein the inner peripheral surface of the cylindrical glazed object is glazed. 5. The method for glazing the inner peripheral surface of a cylindrical glazed object according to claim 4, wherein the rotation of the cylindrical glazed object is performed intermittently in both forward and reverse directions. 6. The cylindrical glazed object has a face-like body (1).
5) and a curved bottom (16). The spray is sprayed on the body (15) with the spray gun (5) facing downward, and the spray is sprayed on the bottom (16). The method for glazing the inner peripheral surface of a cylindrical object to be glazed according to claim 4, wherein the spraying is performed while changing the inclination angle of the gun (5).