JP3475457B2 - Water trimmer - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a water trimmer, and more particularly to a water trimmer suitable as a water treatment device for washing unnecessary phosphors remaining on a panel of a cathode ray tube with water.

[0002]

2. Description of the Related Art A cathode ray tube as a television picture tube has a glass panel on its front surface. There is a step of forming a phosphor screen inside a glass panel in the process of manufacturing a cathode ray tube. In the process, usually, a plurality of panels are arranged on a turntable with the inner surface thereof facing upward, and the panels are set to, for example, 60.
It is performed by dropping and applying the phosphor material from above while rotating at rpm. In this phosphor material application step, unnecessary phosphor material remains on the skirt portion of the panel.

Conventionally, as shown in FIG. 7, a water trimmer, which is a water treatment device for washing away unnecessary fluorescent material of the panel skirt portion 10a with water, has an upper arm (Uppe).
r arm) 1 and a lower arm (Lower arm) 2 has a U-shaped structure. The upper arm 1 has a panel outer peripheral copying roller 3 at its free end, while the lower arm 2 has a free end. Is equipped with a water nozzle 4 for spraying water for washing the phosphor material. The upper arm 1 and the lower arm 2 are connected and supported by an upper arm lower arm connecting fulcrum 6, and the upper arm 1 and the lower arm 2 are configured to be rotatable about the connecting fulcrum 6. Further, the upper arm 1 rotates about an upper arm rotation fulcrum 1a that can be bent at a substantially right angle. Similarly, the lower arm 2 rotates about a lower arm rotation fulcrum 2a that can be bent at a substantially right angle.

As shown in FIG. 7, the panel outer peripheral copying roller 3 attached to the upper arm 1 moves following the outer peripheral surface of the panel which is moved by the rotation of the glass panel 10 to be processed. At this time, the upper arm lower arm connection fulcrum 6
Performs a circular motion about the upper arm rotation fulcrum 1a as shown by an arrow AA 'in FIG. FIG. 8 shows a schematic diagram in the vicinity of the upper arm lower arm connection fulcrum 6 of the conventional device. Upper arm 1
The screw-shaped upper arm lower arm connecting fulcrum 6 attached to the end of the lower arm 2 functions as a cam follower, and moves along the U-groove-shaped guide portion 7 at the end of the lower arm 2. Therefore,
The upper arm 1 of the conventional water trimmer is moved along the guide portion 7 of the upper arm lower arm connection fulcrum 6 along the guide portion 7 of the roller 3, and is rotated about the upper arm rotation fulcrum 1a, so that the AA shown in FIG. It becomes a circular motion of ′.

In FIG. 9, the upper arm lower arm connecting fulcrum 6 is shown in FIG.
FIG. 8 is a schematic configuration diagram of the water trimmer in a state where the water trimmer is circularly moved from the state of FIG. As shown in FIG. 9, the upper arm lower arm connection fulcrum 6 rotates about the upper arm rotation fulcrum 1a, while the arm portion from the lower arm rotation fulcrum 2a to the upper arm lower arm connection fulcrum 6 is upward. By the pivotal movement of the arm lower arm connection fulcrum 6, the pivotal fulcrum of the lower arm is used as a fixed point for expansion and contraction.

FIG. 10 is a schematic view showing the movement of a conventional water nozzle, and FIG. 11 is a view for explaining the trajectory of water on the glass panel according to the conventional method. In particular, FIG. 11 (a) is a perspective view. 11B is a development view.

First, as shown in FIG. 10, in the conventional method, the connecting fulcrum 6 of the upper arm and the lower arm makes a circular motion as described above. The lower arm 2 moves accordingly, the water nozzle 4 attached to the tip of the lower arm 2 rotates about the lower arm rotation fulcrum 2a, and the tip makes a circular motion with a radius R. Therefore, the trajectory 8 of the water ejected from the water nozzle 4 is too close to the panel effective surface 10a on the short side of the panel, as shown by the chain double-dashed line in FIGS. 11 (a) and 11 (b).

The operation of the conventional water trimmer device is as follows. (1) The phosphor material-coated glass panel 10 attracted to the head (panel support) of the rotary table rotates at 60 rpm at a rotation angle of 110 °. (2) Roller 3 of upper arm 1 of water trimmer
However, the glass panel 10 rotates while following the outer periphery of the glass panel 10 that rotates under the condition (1). The upper arm 1 moves up and down in accordance with the follow-up rotational movement of the roller 3. (3) The vertical movement of the upper arm 1 in (2) above is transmitted to the lower arm 2 via the upper arm lower arm connection fulcrum 6 which is the connection fulcrum of the upper arm 1 and the lower arm 2. (4) Water nozzle 4 attached to the lower arm 2
Moves following the upper arm 1 to wash away the phosphor material remaining on the inner surface of the skirt portion of the glass panel 10, which is the object to be processed, with water.

[0009]

In the conventional water trimmer, the upper arm lower arm connection fulcrum 6 part is constituted by the cam follower 6 and the guide part 7 as shown in FIG. Since it is attached to the arm 1, as the upper arm and the lower arm connecting fulcrum 6 move, as shown in FIG. 9, there is a relationship of r <r ′, α> α ′ (where r and r ′ are These are the distances from the center of the upper arm lower arm connecting fulcrum 6 to the centers of the upper arm rotating fulcrum 1a and the lower arm rotating fulcrum 2a, respectively. Α and α ′ are the upper arm lower arm connecting fulcrum 6 and the upper arm rotating fulcrum, respectively. Fulcrum 1
a and the lower arm rotation fulcrum 2a are connected to each other, and the upper arm lower arm connection fulcrum 6 and the lower arm rotation fulcrum 2a are connected to the upper arm rotation fulcrum 1a. Angle).

Thus, from the state shown in the figure, r, r'and α,
Since α ′ moves with different relationships,
The ability of the lower arm 2 to follow the movement of the upper arm 1 is poor.
Therefore, the followability of the water nozzle 4 to the movement of the copying roller 3 on the outer periphery of the panel is deteriorated, and the phosphor material remaining on the inner surface of the skirt portion 10a of the panel cannot be efficiently washed off. Further, in a mixed flow line using different cathode ray tube types (for example, two tube types), ignoring that there is a deviation (for example, a deviation amount of 3 mm) between the positions of both panel pins 8a and 8b as shown in FIG. Water was flown from the water nozzle 4 to wash away the remaining phosphor material. As a result, particularly when either one of the tube types is washed with water (sometimes with both of them), the water ejected from the water nozzle 4 splashes on the panel pin 8a or 8b and hits the fluorescent surface 10c on the back surface of the glass panel 10, so-called water. Bounce failure occurred.

Furthermore, while the tip of the water nozzle 4 is a circular arc (FIG. 10) which is drawn during the water washing operation, the inner surface of the skirt portion 10a of the panel has an arcuate shape on the long side. Although it is not, it is almost straight on the short side of the panel. Therefore, as shown in FIG. 11 (b), the trace of water is too close to the straight panel effective surface at the center on the short side of the panel. Therefore, if the water trace is moved away from the effective surface at the center of the short side of the panel, the phosphor cannot be sufficiently washed off at the long side of the panel and at the corners. That is, in the conventional method, it was difficult to cleanly wash away the phosphor material along the circumference of the panel.

In view of the above problems, the present invention improves the followability of the lower arm to the movement of the upper arm and, even in the case of different types of cathode ray tubes in which the positions of the panel pins are different, they remain in the panel skirt portion. It is an object of the present invention to provide a water trimmer that can wash away phosphors cleanly.

[0013]

SUMMARY OF THE INVENTION In a water trimmer for washing unnecessary phosphor material remaining in a panel skirt portion of a cathode ray tube with water, the above-mentioned problem is solved through a base and a base and a first shaft. A first arm, which is rotatably engaged and has a roll means at one end that follows the outer circumference of the panel of the cathode ray tube, is rotatably engaged via the base and the second shaft portion, and is for washing the phosphor material with water. A second arm having at one end the water discharge means of the first arm and the rotation of the first arm
This second movement due to the locus of the other end and the rotational movement of the second arm
Can move linearly in the tangential direction with respect to the locus of the other end of the arm
, The other end of the first arm is connected, and the second arm
And a coupling support point which the other end of the arm is connected to the second arm is provided with a cylinder means for moving the position of the water discharge means according to the type of the cathode ray tube, further, the
The distance between the second shaft and the water discharge means can be changed on the two arms.
Slide in the direction to move the position of the water discharge means.
A slide member that moves is provided, and the slide member is
A guide member is attached, and the second arm is rotated and the draft is made.
It includes a guide member for guiding the inner member along the inner periphery of the panel skirt is solved by a water trimmer, characterized by comprising providing a cam mechanism Ru to draw the trajectory of water.

In order to solve the above-mentioned problems, a water trimmer according to a second aspect of the present invention is characterized in that the water discharging means according to the first aspect causes a circular motion at the time of washing the long side of the panel and a water movement on the short side of the panel. It is characterized by performing a linear motion during washing with water.

In order to solve the above-mentioned problems, the water trimmer according to a third aspect of the present invention is to move the position of the water discharging means so as not to directly apply water to the panel pin of the panel of the cathode ray line according to the first aspect. Characterize.

[0016]

According to the water trimmer described in claim 1, the first arm rotatably engaged with the base 50 through the first shaft portion, and the base 50 and the second shaft portion. Since it has a second arm rotatably engaged with each other and a connecting fulcrum that connects the other ends of the first arm and the second arm and is linearly movable, The followability of the second arm with respect to the one arm is improved. Also,
The distance between the second shaft and the water discharge means can be changed on the second arm.
Slide in the direction to move the position of the water discharge means.
A slide member that moves is provided and guided to this slide member.
A member is attached, and the guided portion is accompanied by the rotation operation of the second arm.
With a guide member that guides the material, the panel skirt part
Since the cam mechanism for drawing the trajectory of water along the inner circumference is provided, the water discharging means (water nozzle) can be linearly moved in the specific section Δd (see FIG. 5) with a forcing force. As a result, the water discharging means can move along the inner circumference of the panel skirt portion, and the phosphor can be washed away cleanly. Further, since the second arm is provided with the cylinder means for moving the position of the water discharging means depending on the type of the cathode ray tube, it is possible to obtain the trajectory of the water passing through the predetermined position of the panel skirt portion.

[0017] According to claim 2, water discharge means Gapa panel a circular motion during washing of the long side, in order to perform linear movement during washing of the short side of the panel, the water along the inner periphery of the panel skirt release It is possible to achieve good washing with water.

[0018] According to claim 3, for moving the position of the water discharge means so as not to hit directly the water panel pin of the panel of shade polar tube, characterized in that water is prevented from bouncing phosphor screen against the panel pins And

[0019]

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

FIG. 1 shows a water trimmer 2 according to the present invention.
Ru front view showing one embodiment of a 0. FIG. 2 is a left side view of FIG. As shown in FIG. 1 , the water trimmer 20 of the present invention is an example of a first arm engaged with a base 50.
Has an upper arm 1. The free end of the arm 1 on this roll means for rotating to follow the glass panel 10 periphery
An example roller 3 is attached . Also, this
The water trimmer 20 of the first is engaged with the base 50.
It has two arms. As shown in FIG.
The second arm includes the lower arm mounting plate 52 and the LM guide 21.
And a slide base 19 and a lower arm 2.
ing. Among these, a water nozzle 4 for ejecting water for washing the unnecessary phosphor material remaining on the panel skirt portion 10a is attached to the free end of the lower arm 2. Further, the lower arm mounting plate 52 and the upper arm 1 are connected to each other.
The upper arm and the lower arm connecting fulcrum 16, which is an example of the fulcrum, are connected to each other. As described with reference to FIG. 4 later
In addition, the upper arm 1 can rotate about the upper arm rotation fulcrum 1a, which is an example of the first shaft portion . On the other hand , the lower arm 2 is the second
The lower arm rotation fulcrum 2a, which is an example of the shaft portion, can be rotated about the axis.

In the present embodiment, in addition to the conventional construction as described above, the second arm is provided with a cam mechanism 17, a slide base 19, and a pipe type discriminating nozzle stroke switching stopper cylinder 22, which will be described in detail later. There is. Among these, as shown in FIG. 1, the cam mechanism 17 is provided between the lower arm rotation fulcrum 2a of the second arm and the water nozzle 4. FIG. 3 is a diagram showing a cam mechanism. As shown in FIG. 3, in this embodiment, the cam mechanism 17 is an example of a guide member.
And a cam follower 17b which is an example of a guided member, and the guide portion of the cam plate 17a is slightly bent at the center as shown in FIG. As a result, the cam follower 17b draws a correction locus different from the normal circular movement.

The LM guide 21 shown in FIG .
Provided at the lower end of the lower arm mounting plate 52 so as to be parallel to
Has been. Further, the slide base 19 shown in FIG.
The LM guide so that it can be moved on the LM guide 21.
It is mounted on 21. In addition, this slide
As shown in FIG. 3, the side surface of the base 19 has a cam mechanism 17
It is connected to the (cam follower) with screws.
It Therefore, the slide base 19 is the cam follower 1
It is possible to move in the X direction (the movement direction of the LM guide) according to the movement of 7b. In the stopper cylinder 22 for switching the pipe type discrimination nozzle stroke of this embodiment, the switching amount is, for example, 3 mm, and the tip position of the water nozzle is, for example, 3 m.
It can be shifted by m.

FIG. 4 is a schematic diagram for explaining the operation of the present embodiment. In particular, FIG. 4A shows the upper arm rotation fulcrum 1a, the upper arm lower arm connection fulcrum 16 and the lower arm rotation fulcrum 2.
When a is on a straight line, FIG. 4B shows a state in which the state has moved from the state of FIG. 4 (a) and 4 (b), the water trimmer according to the present embodiment first rotates the glass panel 10 to follow the movement of the roller 3 following the outer surface of the glass panel. Rotate about. At this time, the upper arm lower arm connection fulcrum 16 is made independent of both the upper arm 1 and the lower arm 2 and performs a linear motion in the horizontal direction. As a result, always α
= Α ', r' = r ", the followability of the upper arm 1 and the lower arm 2, and thus the followability of the movement of the roller 3 and the movement of the water nozzle 4 are substantially equal (provided that r'and r" are upwards, respectively). Distances from the center of the arm lower arm connection fulcrum 16 to the centers of the upper arm rotation fulcrum 1a and the lower arm rotation fulcrum 2a, where α and α ′ are the upper arm lower arm connection fulcrum 16 and the upper arm rotation fulcrum, respectively. 1a and the lower arm rotation fulcrum 3a are connected to each other, and the upper arm lower arm connection fulcrum 16 and the lower arm rotation fulcrum 2a are connected to the upper arm rotation fulcrum 1a. Angle).

FIG. 5 shows the movement of the tip of the water nozzle having the above-described good followability, and FIG. 6 shows the trajectory of water accompanying the movement of the tip of the water nozzle 4 of FIG. The tip of the water nozzle 4 according to this embodiment has a glass panel 10.
Moves linearly in the Z-direction (R '<R) in a constant section (Δd) where the short side of is washed away. As a result of the movement of the end of the water nozzle 4, as shown in FIG.
8 is a straight line, which can hold a constant distance d1 with respect to the panel effective screen 10b. Therefore, it was possible to prevent the water splashing defect, which was a problem in the related art, due to the water trace 18 coming too close to the panel effective screen 10b on the short side of the glass panel 10.

Further, the water trimmer 20 of this embodiment.
A cathode ray tube type, for example SD-140 (1
9 ") panel water cleaning (so that the water does not directly hit the panel pin from the nozzle), and then when performing panel water cleaning for different pipe types, for example SD-169 (21"), the nozzle stroke for each tube type Use the switching stopper cylinder 22 to move the water nozzle 4 to 3 mm (cathode ray tube SD-1
The panel pin of 40 and the panel pin of the cathode ray tube SD169 were moved by the amount of positional deviation). By this operation, the water spouting from the water nozzle 4 was not positioned immediately above the panel pin, and the water splash failure could be prevented. The moving distance (3 mm) of the water nozzle 4 is variously selected according to different target tube types, and can be appropriately matched with the stopper cylinder 22.

[0026]

As described above, according to the present invention,
By making the movement of the connection fulcrum that connects the first arm and the second arm linear, it is possible to improve the followability of the second arm with respect to the first arm. Further, in the present invention, the second arm is provided with a distance between the second shaft portion and the water discharging means.
The position of the water discharge means is slid in the variable direction.
A slide member for moving the
A guide member is attached, and the second arm is rotated and the draft is made.
A panel skirt provided with a guide member for guiding the inner member.
By providing the cam mechanism for drawing the trajectory of the water along the inner circumference of the portion, the water discharging means can be caused to perform the movement in conformity with the complicated inner surface R shape of the panel. Further, since the second arm is provided with the cylinder means, the tip position of the water discharging means can be changed depending on the type of pipe to be treated.
It is possible to prevent water from spouting on the panel pins. This allows the panel to be subjected to optimal water treatment.

[Brief description of drawings]

FIG. 1 is a front view showing an embodiment of a water trimmer according to the present invention.

FIG. 2 is a left side view of FIG.

FIG. 3 is a diagram showing a cam mechanism according to the present invention.

FIG. 4 is a schematic diagram for explaining the operation of the present embodiment.

FIG. 5 is a diagram showing the movement of the tip of the water nozzle of this embodiment.

FIG. 6 is a diagram showing a trajectory of water accompanied by movement of the tip of the water nozzle of FIG.

FIG. 7 is a schematic configuration diagram for explaining a conventional water trimmer.

FIG. 8 is a schematic diagram in the vicinity of an upper arm lower arm connection fulcrum of a conventional device.

FIG. 9 is a schematic configuration diagram for explaining the operation of a conventional water trimmer.

FIG. 10 is a schematic diagram showing movement of a conventional water nozzle.

FIG. 11 is a diagram illustrating a trajectory of water on a glass panel according to a conventional method.

FIG. 12 is a diagram for explaining a water splash defect.

[Explanation of symbols]

1 Upper arm 1a Upper arm rotation fulcrum 2 Lower arm 2a Lower arm rotation fulcrum 3 Roller 4 Water nozzle 6,16 Upper arm Lower arm connection fulcrum 7 Guide part 8, 18 Water locus 10 Glass panel 10a Panel skirt part 10b Panel Effective surface 11 Fluorescent surface 17 Cam mechanism 17a Cam plate 17b Cam follower 19 Slide base 20 Water trimmer 21 LM guide 50 Base 52 Lower arm mounting plate

Claims (3)

(57) [Claims] 1. A water trimmer for washing unnecessary phosphor material remaining in a panel skirt portion of a cathode ray tube with water, wherein the base is rotatably engaged with the base through the first shaft portion, and A first arm having a roll means at one end, which follows the outer circumference of the panel of the cathode ray tube, is rotatably engaged with the base and the second shaft portion, and a water discharge means for washing the phosphor material is used. A second arm at one end and the other end of the first arm due to the rotation operation of the first arm
Of the second arm due to the trajectory of the second arm and the rotation operation of the second arm.
Can move linearly in the tangential direction with respect to the locus of the other end of the arm
, The other end of the first arm is connected, and
And a coupling support point to which the other end of the second arm is connected to said second arm, a cylinder means for moving the position of the water discharge means according to the type of the cathode ray tube is provided, further, the first The second arm includes the second shaft portion and the water discharge means.
Slide it in a direction that allows the distance between
A slide member for moving the position of the discharging means is provided, and a guided member is attached to the slide member, and the second member is attached.
Guide for guiding the guided member according to the rotating motion of the arm
Includes a member, a water trimmer, characterized in that a cam mechanism Ru to draw the trajectory of the water along the inner periphery of the panel skirt. 2. The water trimmer according to claim 1, wherein the water discharging means performs a circular movement when washing the long side of the panel and a linear movement when washing the short side of the panel. 3. The water trimmer according to claim 1, wherein the position of the water discharging means is moved so that water is not directly applied to the panel pin of the panel of the cathode ray tube.