JPH0442877A - Apparatus for multicolor glazing - Google Patents

Abstract

PURPOSE:To readily enable exchange of works and color change by providing a work conveyor and a glazing robot and installing plural rotating type booths respectively provided with a pan for recovering a glaze between both. CONSTITUTION:A work 20 is conveyed to the side of a carrier device 17 with a conveyor and carried from the conveying end onto a potter's wheel 13 with the carrier device 17. When the carrier device 17 is returned to a standby position, a base 15 is rotated 90 deg.. The next work 20 is then carried from a conveyor onto a potter's wheel 13 in the next booth 10. When the carrier device 17 is returned to the standby position, the base 15 is further rotated 90 deg.. Thereby, the work 20 is located at a position on the side opposite to the carrier device 17, a coating robot 16 is operated to glaze the work 20 simultaneously with rotation of the potter's wheel 13. After completing the glazing, either of glaze feeding valves is closed to stop the feed of the glaze.

Description

[Detailed Description of the Invention] [Field of Industrial Application] The present invention relates to a technology for efficiently changing colors and replacing workpieces in a device for spraying glaze onto ceramics such as wash basins and toilet bowls. .

[Prior art]

In the conventional glazing device, as shown in Fig. 7, a workpiece 2 made of ceramic, such as a wash basin or a toilet bowl, is brought into a booth surrounded by a curtain l that is open on one side and surrounded on three sides.
The glaze is placed on the potter's wheel 4 and is applied onto the surface of the workpiece 2 by the coating robot 5 disposed on the open side as the wheel 4 rotates.

When the glazing is completed, the curtain 1 is stored downward or upward, the glazed workpiece 2 is carried out by the conveyance device 3, the next unglazed workpiece is conveyed onto the potter's wheel 4, and the curtain 1 is stretched again and glazed. Work was being done.

When changing the color to be glazed, the transport device 3 and painting robot 5 were stopped, the glaze hose and nozzle were replaced, and the removed nozzle was cleaned during the glazing process.

[Problem to be solved by the invention]

In this way, when changing workpieces, the curtain was lowered, the conveyance device was moved back and forth, the workpiece was replaced with an unglazed workpiece, and the curtain was raised again before glazing was performed. It had not been done.

Additionally, when changing the color (glaze), the entire equipment, including the painting robot and conveyance device, had to be stopped before changing the nozzle, making changing the color a very tedious and time-consuming process. be. Therefore, it takes extra time and effort to prepare products in a large number of colors to match the colors desired by buyers, and products in colors with low demand cannot be delivered in a short time.

[Means to solve the problem]

In view of these points, the present invention is constructed as follows so that workpiece replacement and color change can be easily performed.

A workpiece transfer device is provided on one side, a glazing robot is placed on the other side, a plurality of rotating booths are provided between the transfer device and the glazing robot, and each booth is provided with a tray for collecting glaze. It is something.

Further, in the multicolor glazing apparatus, the workpiece is exchanged during the glazing operation by the glazing robot, and the glaze is exchanged and the nozzle is cleaned when the booth rotates.

Further, a color change device is provided near the nozzle, and the cleaning valve is operated while switching from one glaze supply valve to another glaze supply valve.

[For production]

Since the present invention is constructed as described above, glazing is performed by a coating robot on the - side, and at the same time, the glazed workpiece is exchanged with an unglazed workpiece on the other side. After finishing glazing one workpiece, the booth must be rotated to begin glazing the next workpiece.

When this booth rotates, the color changes (change of glaze)
This is done simultaneously, and between closing one glaze supply valve and opening the other glaze supply valve, air and water are alternately passed through the glaze hose and nozzle to perform cleaning.

When the glazing process is completed, the drain of the saucer is opened to collect the glaze, which is then reused.

[Embodiments of the invention]

Next, an example will be described in which the work shown in the attached drawings is used as a toilet bowl and glazed.

Fig. 1 is a front view of the multicolor glazing device of the present invention, Fig. 2 is a plan view, Fig. 3 is a side view of the conveyance section, Fig. 4 is a front view of the glaze being collected, and Fig. 5. 6 is a side view showing the color change device, and FIG. 6 is a color change time chart.

As shown in FIGS. 1 and 2, the multicolor glazing device has a coating robot 16 and a conveyance device 17 facing each other, and a rotating booth is arranged between them, and the booth is configured in the shape of a box. One side surface is open, and the lower surface is a saucer 10a for storing glaze, and the saucer 10a is provided with a toluin IOb for discharging the glaze outside the booth.
C is net-like or open.

The rear portions of the four booths 10, 10, . and the duct 12 are communicated with each other. However, by changing the shape of the rear part of the booth 10, it is possible to combine three booths and arrange them in a 7-shape shape, or it is also possible to arrange five or more booths radially. It is also possible to arrange four booths in a cross shape and arrange two sets of conveyance devices 17 and painting robots 16 facing each other as in this embodiment.

The duct 12 is opened only on the painting robot 16 side, so that dust and the like scattered inside the booth 10 can be sucked and discharged to the discharge duct 11 side through the rear surface 10C of the booth 10.

Further, a potter's wheel 13 is provided at the center of each booth 10, and the potter's wheel 13 is rotatable by a drive motor 14 provided on the side of the booth 10.

These four booths 10 are placed on a machine stand 15, and the cough machine stand 15 can be rotated by a motor.
It can be raised and lowered using a hydraulic cylinder. However, instead of using a hydraulic cylinder, it is also possible to use a configuration in which it is lifted from above.

A conveyor 17 is provided on the opposite side of the painting robot 16, a conveyor 21 for supplying an unglazed workpiece 20 such as a dried toilet bowl is placed in front of the conveyor 17, and a conveyor 21 is provided in the rear of the conveyor 17 for supplying an unglazed workpiece 20 such as a dried toilet bowl. A conveyor 22 for conveying the glazed workpiece 20 to the firing process is disposed.

The transport device 17 can move in the front-rear direction and in the left-right direction along the rails 23, and can also rotate the carrier 18 that lifts the workpiece 20 by a drive motor 24. Therefore, the workpiece 2 from the supply conveyor 21
0 can be picked up by the receiver and transported onto the potter's wheel 13 while rotating the workpiece, and the workpiece 20 after glazing is transferred to the potter's wheel 1.
3 and can be transported to the conveyor 22 while rotating.

The painting robot 16 is placed in the protective frame 3 so that it does not approach unnecessarily.
0, an arm 25 is rotatably disposed on a machine base 27, the cough machine base 27 is configured to be rotatable, and an arm 26 is pivotally connected to the tip of the arm 25, A nozzle 29 is attached to the tip of the arm 26 so as to be rotatable in the axial direction and in the vertical direction.

The nozzle 29 is connected to a color change device A, which is provided near the nozzle 29, and in this embodiment is provided at the tip of the arm 26 as shown in FIG.

The color change device A consists of glaze supply valves 32 and 33, which are electromagnetic switching valves, and a cleaning valve 34, which is a three-way switching solenoid valve. The hoses 35 and 36 connected to the discharge ports of the
9 and a hose 38 connected to a cleaning valve 34. However, the glaze supply valves are connected in parallel up to the number of booths (four) depending on the color of the glaze to be applied.

The cleaning valve 34 is equipped with the hose 38 and hoses 39 and 4.
0 is connected, the hose 39 is connected to a water faucet, and the hose 40 is connected to a discharge port of an air pump.

In addition, the glaze supply valves 32 and 33, the cleaning valve 3
The solenoid No. 4 is connected to a control circuit, and the painting robot 16, conveyance side view 17, conveyors 21 and 22, motors, etc. are also connected to the control circuit.

In such a configuration, the work 20 is conveyed by the conveyor 21 to the conveyor 17 side, and is conveyed by the conveyor 17 from the end of the conveyor 21 to above the potter's wheel 13. Then, when the transport device 17 returns to the standby position, the machine base 15 is
° Rotated. Then, the next work 20 is conveyor 21
From there, it is transported onto the potter's wheel 13 in the next booth 10, and when the transport device 17 returns to the standby position, the machine stand 15 is further rotated by 90 degrees.

When the workpiece 20 is located on the opposite side of the conveyance device 17 in this manner, the coating robot 16 is operated, and the workpiece 20 is glazed as the potter's wheel 13 rotates.

The timing of changing the glaze after glazing is completed is shown in Figure 6, where a indicates the operation of the painting robot 16 and b indicates the operation of the booth 1.
0, C is the solenoid on the air side of the cleaning valve 34, d is the solenoid on the water side, e is one glaze supply valve (32), and f is the other glaze supply valve (32).
33).

That is, when glazing is completed, one glaze supply valve 33 is closed (f) and the supply of glaze is stopped, and the coating robot 1-1
6 moves to the standby position and stops (al. At the same time, the booth 10 is rotated (bl, the air side solenoid of the cleaning valve 34 is ONL, and (C) the hose 40 is connected to the cleaning valve 34, the hose 38, and the glaze supply valve. Compressed air is sent to 32 and 33, the glaze hose 37, and the nozzle 29 for cleaning.After a certain period of time, the solenoid is switched from the air side of the cleaning valve 34 to the water side fc) (d),
Washing water is sent from the hose 39 to the washing valve 34, hose 38, glaze supply valves 32 and 33, glaze hose 37, and nozzle 29 for washing. By repeating this flow of air and cleaning water several times, the nozzle 29 and hose can be further cleaned. Usually repeated twice alternately.

When cleaning is completed, the water side solenoid of the cleaning valve 34 is turned OFF (dl, and the other glaze supply valve 32 is turned ON).
(e) The glaze is filled up to the nozzle 29.

Then, the rotation of the booth 10 is stopped and the coating robot 16 is operated again, and when the nozzle 29 is positioned to the next workpiece 20, the glaze supply valve 32 is turned back to
It is then glazed with a different color of glaze.

During the glazing of the next workpiece, the glazed workpiece located on the opposite side of the painting robot 16 is conveyed to the conveyor 22 by the conveyance device 17, and the next unglazed workpiece is picked up from the conveyor 21 and placed in the booth 10. It is transported onto the potter's wheel 13 inside.

The above operations are repeated, and the nozzle is cleaned and the color is changed while the booth 10 is rotating, and the workpieces are replaced by the conveyance device on the opposite side while the workpieces are being glazed.

In addition, in the case of -color or two colors, it is also possible to arrange two booths back to back and perform glazing on one side and exchanging workpieces on the other side.

When the work is completed in this way, as shown in Fig. 4, by lifting the booth 10, placing the collection bucket 19 below the drain 10b, and opening the drain 10b, the glaze used for glazing can be recovered, and the glaze used for glazing can be recovered. It can be used for glazing.

〔effect〕

With the above configuration, the present invention provides the following effects.

A workpiece transport device is installed on one side, a painting robot is placed on the other side, and a rotating booth is installed between the transport device and the painting robot, so that the workpiece can be exchanged on the other side while glazing is being applied on the - side. This enabled efficient glazing work without wasting time such as raising and lowering curtains.

In addition, a duct can now be placed in the center of a combination of multiple booths, making it possible to share a dust evacuation duct and eliminating the need for a duct in each booth.

Since each booth was equipped with a collection tray, the glaze could be collected after the glazing process was completed, making it possible to recycle the glaze.

In addition, since the glaze is replaced and the nozzle is cleaned when the booth rotates, it is possible to change colors efficiently, and the cleaning valve can be changed while switching from one glaze supply valve to another. Because it was configured to operate, changing the glaze color and cleaning could be done easily, saving space, and in a short amount of time.

[Brief explanation of drawings]

Fig. 1 is a front view of the multicolor glazing device of the present invention, Fig. 2 is a plan view, Fig. 3 is a side view of the conveyance section, Fig. 4 is a front view of the glaze being collected, and Fig. 5. is a side view showing the color change device, Figure 6 is a color change time chart,
FIG. 7 is a perspective view showing a conventional glazing device. A...Color change device 10, 0a, 16, 17, 20, 29, 32, 34...Booth...Saucer...Painting robot...Transport device...Workpiece...Nozzle 33...Glaze supply valve・・Cleaning valve

Claims (3)

[Claims] (1) A workpiece transfer device is provided on one side, a glazing robot is placed on the other side, and a plurality of rotating booths are provided between the transfer device and the glazing robot, and each booth has a glaze recovery device. A multicolor glazing device characterized by a saucer. (2) The multicolor glazing apparatus according to claim 1, wherein the workpiece is exchanged during the glazing operation by the glazing robot, and the glaze is exchanged and the nozzle is cleaned when the booth rotates. (3) A multicolor glazing device, characterized in that a color change device is provided near the nozzle, and the cleaning valve is operated while switching from one glaze supply valve to another.