JPH10261368A - Washing water removing method and device for cathode-ray tube glass container - Google Patents

Abstract

PROBLEM TO BE SOLVED: To efficiently remove washing water adhering to a glass container surface, by blowing air to a container surface, with a cathode-ray tube glass container rotated under a condition wherein the axis of the cathode-ray tube is adopted as a center, the container surface is set into a downward condition, and pressedly fix the container following the rotation by a centrifugal force utilizing type clamp mechanism. SOLUTION: A cathode-ray tube glass container W is placed on a rotation head 4 with its surface downward in a condition where the axis of the cathode- ray tube glass container W conforms to a rotation axis; and then the rotation head 4 is gradually shifted from a low- to a high-speed in rotation. Then, the dynamic balancer 9 of a centrifugal force utilizing type clamp 10 is elevated by centrifugal force, and concurrently a claw piece 8 is lowered to abut on and press the container W to fix it to the rotation head 4. Consequently, washing water, in the front surface F of the container W, can be efficiently and sufficiently removed, by shaking off action by the centrifugal force, and blowing off action by blowing off air from air nozzles 12.

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 removing water from a glass container for a cathode ray tube, and more particularly, to a method for removing water remaining on a front surface of a glass container for a television picture tube after polishing and cleaning. The present invention relates to a technology for removing washing water.

[0002]

2. Description of the Related Art Conventional washing water removing means is configured to blow air from the air nozzle to the surface of a glass container while relatively moving the air nozzle in a state where the air nozzle is opposed to the front surface of a glass container for a cathode ray tube. I have.

[0003]

In the above prior art, since air is simply blown, not only a large amount of air to be blown out but also a long time is required to completely drain the water. It was inefficient.

It is an object of the present invention to provide a method and an apparatus for removing washing water adhering to the surface of a glass container for a cathode ray tube without omission with high efficiency.

[0005]

According to the present invention, in order to achieve the above object, a glass container for a cathode ray tube is rotated while its axis is centered, and air is blown onto the surface of the container. As the device, the container is set so that its surface is directed downward, and is pressed and fixed to the mounting bracket of the container with rotation by a centrifugal force type clamp mechanism.

[0006] By the synergistic effect of the draining action by centrifugal force and the draining action by air blowing, the washing water adhering to the container surface is removed without any occlusion under high efficiency. As the rotation speed increases, it is automatically and strongly fixed by the clamp mechanism utilizing centrifugal force.

[0007]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described in detail with reference to the apparatus shown in the accompanying drawings. As shown in FIGS. 1 to 3, a vertical shaft bearing 2 is provided on a base 1, and a hollow shaft 3 extending downward is provided. The short cylindrical rotary head 4 is mounted on the hollow shaft 3 with the bearing 2
And a rotating shaft 4 from a servo motor 5 provided on the base 1 and a mounting mechanism T of a glass container W for a CRT is mounted on the upper end of the rotating head 4. A receiving portion 7 is provided so that the glass container W can be placed on the receiving portion 7 with its front face F facing downward. 8 with a dynamic balancer 9 at the rear end
The pin 0 is pivoted inward by the pin 11 so that the claw piece 8 corresponds to the mounting bracket T on the receiving portion 7, thereby forming a centrifugal force-based clamping mechanism.

A drive mechanism 14 for a support arm / air supply pipe 13 which extends downward while an air nozzle 12 having a circular or slit-shaped ejection opening is opposed to the front face F of the glass container W inside the rotary head 3. To move in a substantially horizontal radial or diametrical direction along the front surface F. Preferably, the air nozzle 12 is moved to the front surface F of the glass container W.
It is preferable to move in the radial direction from the vicinity of the center in the radial direction, and connect a pressurized air supply source 17 to the air supply pipe 13 via an air guide pipe 15 and an air supply opening / closing valve 16, and pressurize at an arbitrary pressure. Air can be blown from the air nozzle 12 to the front surface F of the glass container W while supplying air to the air supply pipe 13 in a timely manner. As the drive mechanism 14, a screw feed mechanism 19 driven by a servo motor 18 is adopted. In addition to reciprocating the moving table 20 while being guided by the guide rails 21, it is preferable that an air supply pipe 13 is attached and fixed to the moving table 20, or the moving table 20 is reciprocated by a fluid pressure actuator (not shown). You may.

In the apparatus having the above structure, the glass container W for a cathode ray tube which has been subjected to the polishing step and the cleaning step is set in the rotary head 4 and then subjected to the draining step. Since the cover is provided so that the cleaning water does not adhere to the portion, the portion where the cleaning water remains and needs draining is limited to the front surface F.

In order to set the glass container W for a cathode ray tube on the rotary head 4, the glass container W is placed on the rotary head 4 by, for example, manual operation with the axis of the glass container W coinciding with the axis of rotation. By rotating the rotary head 4 from low-speed rotation to high-speed rotation gradually by starting the servo motor 5, the dynamic balancer 9 of the clamp 10 is raised by centrifugal force from the state of FIG. 8, the claw piece 8 comes into contact with and presses from above the mounting bracket T, and the glass container W is fixed to the rotary head 4. When the glass container W rotates at a high speed together with the rotary head 4, the glass container W The washing water adhering to the front face F is shaken off and removed by centrifugal force. At the same time, the pressurized air is ejected from the air nozzle 12 while the screw feed mechanism by the servo motor 18 is used. 9, the moving table 20 is moved, and the jetting air from the air nozzle 12 is sprayed on the entire front surface F of the container W in conjunction with the rotation of the glass container W. By the blow-off action, the washing water on the front face F of the glass container W is removed without leakage with high efficiency.

With the completion of the draining step, the rotation of the rotary head 4 is gradually reduced to a stop to stop the glass container W
May be stopped and removed manually.

The glass container W for a cathode ray tube can be attached to and detached from the rotary head 4 without manual operation.
It is preferable that the holding is performed by an automatic transfer device, that is, as shown in the drawing, a holding arm 22 for detachably holding the glass container W above the rotary head 4 and a fluid pressure actuator 23 for moving the holding arm 22 up and down. And a transfer mechanism 26 for moving the lift mechanism 25 in the horizontal direction. The programs of the lift mechanism 25 and the transfer mechanism 26 are stored in programs for various mechanisms for draining. And the glass container W is attached and detached, and a vertical and horizontal relationship is specified to attach and detach the glass container W.
Therefore, it is desirable to control the stop phase of the servomotor 5 and to adopt a timing belt as a belt used by the transmission mechanism 6 or to provide another stop phase regulating means. May be.

The rotary head 4 rotates at a rate of 100 to 1 per minute.
It may be about 000, and the target CRT is 14
~ 21 inches is suitable.

[0014]

As described above, according to the present invention,
Since the air is blown to the front surface F at the same time as the glass container W is rotated, the washing water adhering to the front surface F of the glass container W is shaken off by centrifugal force and blown off by the jet air. Can be removed without omission under high efficiency by the synergistic effect of

A clamp mechanism 10 utilizing centrifugal force is provided outside the vicinity of the upper end of the rotary head 4, and the mounting bracket T of the glass container W on the receiving portion 7 is fixed by being pressed by a clamp with the rotation of the rotary head 4. Therefore, when the glass container W is set on the rotary head 4, the glass container W can be automatically fixed to the rotary head 4 by the clamp 10 with the rotation without any complicated operation. Not only can it be performed, but also the clamp release is automatically performed by stopping the rotation of the rotary head 4.

The driving mechanism 14 moves the air nozzle 12 in a substantially horizontal direction along the front surface F while facing the front surface F of the glass container W. Air nozzle 1 with limited opening
2 can be used to blow air efficiently.

[Brief description of the drawings]

FIG. 1 is a partially longitudinal front view of an operating state of a clamp mechanism showing a main part of the device of the present invention.

FIG. 2 is a partially longitudinal front view of the device of the present invention.

FIG. 3 is a partially cutaway side view of the apparatus of FIG. 2;

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Base 2 Bearing 3 Hollow shaft 4 Rotating head 5 Servo motor 7 Receiver 8 Claw piece 9 Dynamic balancer 10 Clamp 11 Pin 12 Air nozzle 14 Driving mechanism 15 Air guide tube 17 Pressurized air supply source W Glass container F Front T Mounting bracket

Claims (5)

[Claims] 1. A method for removing cleaning water remaining on a front surface (F) of a glass container (W) for a cathode ray tube after polishing and cleaning the front surface (F) thereof, wherein the glass container (W) is aligned with an axis. After setting the rotary head (4) under
The washing water is shaken off by the centrifugal force under the rotation of the glass container (W) by the rotation of the rotating head (4), and at the same time, the washing water is blown against the front surface (F) of the rotating glass container (W). For removing water from a glass vessel for CRT tubes that blows off water. 2. After a glass container (W) is placed on a rotary head (4) provided with a centrifugal force-based clamping mechanism (10), a centrifugal force-based clamping mechanism is rotated with rotation of the rotary head (4). 2. The method according to claim 1, wherein the glass container (W) is fixed to the rotating head (4) by the following method. 3. An apparatus for removing a washing water from a front surface (F) of a glass container (W) for a television picture tube after polishing and cleaning the front surface (F), wherein a vertical shaft bearing is mounted on a base (1). A rotary head (4) is provided in the hollow shaft (3) in a vertical axis relation with the rotary head (4), and is rotated by a motor (5), and a glass container is provided at an upper end of the rotary head (4). In addition to providing a receiving portion (7) for mounting the mounting bracket (T) in (W), a clamp mechanism for pressing the mounting bracket (T) is provided outside the receiving portion (7), and a rotary head (3) An air nozzle (12) is provided inside the glass container so as to face the front surface (F) of the glass container (W), and an air nozzle (15) is provided in the air nozzle (12).
A pressurized air supply source (17) is connected via a device for cleaning water from a glass vessel for a CRT. 4. Outside the vicinity of the upper end of the rotary head (4),
A clamp (10) having a nail (8) at the tip and a dynamic balancer (9) at the rear end is used to move the clamp (8) inward so that the nail (8) corresponds to the mounting bracket (T) on the receiving part (7). 4. The apparatus for removing water from a glass vessel for a CRT tube according to claim 3, further comprising a centrifugal force-based clamping mechanism configured to be pivoted by a pin in this state. 5. A driving mechanism (14) for moving the air nozzle (12) in a horizontal radial direction or a diametric direction along the front surface (F) while facing the front surface (F) of the glass container (W). The washing water removing device for a glass vessel for a cathode ray tube according to claim 3 or 4, wherein