JPS6212037A - Explosion-proof treating device - Google Patents

Abstract

PURPOSE:To achieve automatic explosion-proof treatment of cathode-ray tube by providing device for limiting such that the position in radial direction of bulb base of lug board positioned and supported on supporting device will not contact with cathode-ray tube thereby preventing contact of cathode-ray tube with lug board reliably. CONSTITUTION:The bulb base 31 is constructed retractably and when mounting a cathode ray tube B on said base 31 at the advanced position, the position of lug board L positioned and supported on supporting device 6 in radial direction of bulb base 31 is displaced by limiting device 40 to prevent the lug board L from contacting with cathode ray tube B. Consequently, droppage of lug board L or peeling of resin tape wound over cathode ray tube B due to contact are eliminated resulting in automatic explostion-proof treatment of cathode-ray tube B.

Description

[Detailed Description of the Invention] [Technical Field of the Invention] The present invention relates to an explosion-proof processing device for a cathode ray tube, and more specifically, for tightening the outside of a cathode ray tube with a strip and simultaneously attaching the cathode ray tube to a receiver or the like by this tightening. This invention relates to an explosion-proof processing device for fixing lug plates for

[Technical background of the invention and its problems]

As a means of explosion-proofing treatment for cathode ray tubes, resin tape (T
) and then wrap a metal strip (M) over this tape (T).
At the same time, by tightening the metal strip (M), the lug plate (L), which is bent into an L shape, is fixed to the diagonal corner of the cathode ray tube (B), as shown in Figure 4. There is. This lug plate (L) is for attaching the cathode ray tube (B) to a receiver or the like.

Conventionally, this explosion-proof treatment has been carried out using the apparatus shown in FIGS. 5(A) and CB). This explosion-proof processing equipment has a valve pedestal (2) fixed to a table (1), and a vacuum chuck (4) on the central part of which is moved up and down by the drive of a cylinder (3) fixed to the table (1). )
is provided. Further, a support plate (5) is attached on the valve pedestal (2) and has an opening formed in the center thereof through which a cathode ray tube (B), which is moved up and down while being sucked and supported by a vacuum chuck (4), is inserted therethrough. Around the opening of the support plate (5), there is a support device (6) that positions and supports the lug plate (L), and a metal strip (M) fed by the rollers (7) of the feed device is guided. A guide section consisting of a fixed guide (8) and a slide guide (10) that is driven toward and away from the fixed guide (8) by driving a pair of cylinders (9) fixed to a support plate (5). , metal strip (
M) electrodes (lla), (ll
b) etc. are provided.

Now, for the explosion-proof treatment, first, the lug plate (L) is attached to the lug plate positioning jig of the support device (6). As shown in Fig. 6, this lug plate positioning jig has a groove (14) provided with a protrusion (13) at its tip that engages with a hole (H) formed in the lug plate (L). The lug plate (L) is arranged in the radial direction of the valve pedestal (2) shown by the arrow (15), that is, in the radial direction of the valve pedestal (2).
2) It is mounted so that it can be displaced about 2 to 3 meters in the radial direction of the cathode ray tube (B) that is positioned and supported above, and is slid on this positioning jig by driving the positioning jig and the cylinder (16). It is positioned and supported by a slide plate. On the other hand, the XY direction positioning holder (
The cathode ray tube (B) positioned by 18) is suction-supported by the vacuum chuck (4) which is in a lowered state due to the drive of the cylinder (3). While supporting the cathode ray tube (B) by suction, a pair of rollers (7) that sandwich the metal strip (M) are rotated in the forward direction to feed the metal strip (M). This metal strip (M) is connected to a fixed guide (8) and a slide guide (10) provided on the support plate (5).
) and is wound so as to surround the cathode ray tube (B) on the bulb holder (2) and the lug plate (L) positioned and supported by the support device (6) from the outside. The tip of the wrapped metal strip (M) is fixed with the first fixing grip (20a), and the slide guide (10) is moved backward by driving the cylinder (9), and then the electrode (lla)
With the anode, the other electrode (llb), and the first fixing grip (20a) grounded, the metal strip (M) is heated with electricity. Thereafter, the rollers (7) are reversely rotated to wrap the heated metal strip (M) around the cathode ray tube (B) and apply a certain tension to it.

Then, the overlapping part with the tip of this metal strip (M) is fixed with the second grip (20b), and then the first grip (20b) is fixed.
After cutting the overlapping part on the a) side with a cutter (21), the overlapping part is welded by applying pressure and electricity to the welding electrode (22). The lug plate (L) supported by a positioning jig so as to be movable in the radial direction of the cathode ray tube (B) positioned and supported on the bulb holder (2) is connected to the winding of the metal strip (M). Due to the tension applied to the tube, the tube is displaced and fixed in the direction of the cathode ray tube (B).

The cathode ray tube (B) that has undergone the explosion-proof treatment is removed from the explosion-proof treatment apparatus by raising the vacuum chuck (4) by driving the cylinder (3).

However, in the explosion-proof treatment device configured as described above, the cathode ray tube (B) is mounted on the lug plate (shi) supported by the support device (6).
Because there is a clearance of about 2 to 3 meters in the radial direction.

When the metal strip (M) is fed at the same time as positioning and supporting the cathode ray tube (B) to the bulb holder (2), this metal strip (
M), the lug plate (L) is displaced in the axial direction of the cathode ray tube (B) and comes into contact with the cathode ray tube (B), causing it to fall from the support device (6) or to cause damage to the front surface of the cathode ray tube (B). The resin tape (T) wrapped around the outside of the part is peeled off, which reduces work efficiency and prevents automation of explosion-proof processing.

[Purpose of the invention]

The present invention has been made in view of the above-mentioned circumstances, and an object of the present invention is to construct an explosion-proof processing device that can position and support a cathode ray tube so that it does not come into contact with the lug plate positioned by positioning in the center direction of the panel.

[Summary of the invention]

It has a bulb pedestal that positions and supports a cathode ray tube, and a support device that positions and supports a lug plate attached to the cathode ray tube so as to be movable in a radial direction of the bulb pedestal,
The feeding device and the guide tighten the strip fed to the cathode ray tube so as to surround the outside of the cathode ray tube positioned and supported by the valve holder and the lug plate positioned and supported by the support device, and by this tightening. In the explosion-proof processing device for fixing the lug plate to the cathode ray tube, the valve holder is configured to be movable in a direction orthogonal to the radial direction thereof, and the lug plate positioned and supported by the support device is attached to the valve holder. By providing a regulating device that regulates the position of the valve holder in the radial direction so as not to contact the cathode ray tube positioned and supported by the pedestal,
The structure allows the cathode ray tube to be positioned without coming into contact with the lug plate.

[Embodiments of the invention]

Hereinafter, the present invention will be described based on embodiments with reference to the drawings.

FIGS. 1(A) and 1(B) show the structure of an explosion-proof processing apparatus which is an embodiment of the present invention. This explosion-proof processing apparatus has a table (30) with a recess formed in the center, and a valve pedestal (31) is provided on the recess of the table (30). This valve pedestal (31) is integrated with this support plate (32) by a drive support plate (32) attached to the rond of the cylinder (3) fixed to the bottom of the recess, and a plurality of columns (33). Valve catch plate attached to (
34). This valve receiving plate (34) is provided with a recessed portion in the center, and a cathode ray tube (B) is placed on this recessed portion.
A vacuum chuck (35) is attached to suction and support. The valve pedestal (31) to which this vacuum chuck (35) is attached is connected to the cylinder (
3), the table (30) is guided by the drive support plate (32) and the guide member (36) provided at the bottom of the recess of the table (30) to advance and retreat in the vertical direction.

The valve holder (
A support base (38) is attached that has an opening through which a cathode ray tube (B) mounted on the camera 31) can be inserted. A fixed guide is provided on the upper rear surface of the support base (38) to guide the metal strip (M) which is sandwiched between a pair of rollers (7) of the feeding device and fed by the forward rotation of the rollers (7). (8) is attached, and on the front upper surface,
A pair of left and right cylinders (
9), a semicircular slide guide (10) is provided which is driven toward and away from the fixed guide (8). Further, a support device (6) for positioning and supporting the lug plate (L) is provided at each diagonal portion on the support stand (38). This support device (6) has a structure similar to that of a conventional support device, and includes a lug plate positioning jig in which a groove for attaching the lug plate (L) is formed, and a cylinder (16) that is driven to position the lug plate (L). The positioning jig and the slide plate position and support the lug plate (L) so that it can be displaced in the radial direction of the valve holder (31). Further, on the upper surface of the front and right side of the support base (38), there are electrodes (lla) (11, b), and the rear part is provided with the tip of the metal strip (M) and the metal strip (M).
M), which clamps and fixes the overlapping part with the tip of the first. Second
Grip (20a), (20b), metal strip (M)
A cutter (21) for cutting the overlapping portion on the side of the first grip (20a), and a welding electrode (22) for spot-welding the overlapping portion by applying pressure and electricity are provided.

By the way, the valve receiving plate (34) of the above-mentioned valve receiving stand (31)
, there are four height positioning receivers (17) provided on the front and rear sides that regulate the height position of the cathode ray tube (B) suction-supported by the vacuum chuck (35), and four height positioning receivers (17) that regulate the position in the X and Y directions. In addition to the eight XY direction positioning receivers (18) provided on each side, there is a valve holder (31) on the lug plate (L) positioned and supported by the support device (6) on the diagonal corner. A regulating device (40) is provided for regulating the radial position.

This regulation device! As shown in FIG. 2, the cam rod (40) extends through the valve receiving plate (34) so as to be able to move forward and backward in the forward and backward direction of the valve holder (31), and has its tip as a cam surface. 41), and a valve holder (41) that engages with this cam rod (41) and is orthogonal to the advancing and retreating direction of this cam rod.
31) Consists of a regulating jig (42) that is displaced in the force direction. The cam rod (41) is connected to a spring guide (43) attached to the drive support plate (32) and the cam rod (41).
Due to the bias of the compression coil spring (45) installed between the flange (44) provided at the rear end, the tip cam surface protrudes above the valve receiving plate (34), and the valve receiving plate ( 43
) is moved back by the pressure of the cathode ray tube (B) positioned and supported above. Also, the regulating jig (42)
is the linear guide (4) fixed to the valve receiving plate (34).
6) and a cam floor support (47) attached to this slider (47).
8) and a T-shaped regulating plate (49). Cam floor (50) attached to cam floor support (48)
) is the cam floor support (48) and valve receiving plate (34).
The cam rod (41) is brought into pressure contact with the cam surface of the cam rod (41) by the bias of a tension coil spring (52) mounted between the spring post (51) and the spring post (51) fixed to the cam rod (41). However, due to the pressure contact of the lever, the regulation plate (49) was displaced in the radial direction of the valve pedestal (31) following the movement of the cam rod (41), and was positioned and supported by the support device (6) at the opposing position. The radial position of the valve holder (31) on the lug plate (L) is regulated.

The normal position of this lug plate (L) is preferably a position that is about inn beyond the diagonal dimension of the cathode ray tube (B) positioned and supported on the valve receiving plate (43).

The explosion-proof treatment of the cathode ray tube (B) is carried out as follows.

First, the lug plate (L) is attached to the lug plate support device (6).

The lug plate (L) is attached by an automatic lug plate supply device (not shown), but it may also be attached manually.

Next, the cathode ray tube (B) is mounted on the bulb pedestal (31) in the raised position using a transfer device (not shown). This cathode ray tube (B) is lowered while moving backward by pressing the cam rod (41) of the regulating device (40) provided on the valve holder (31), and moves to a position in the XY direction provided on the valve receiving plate (34). While the position is regulated in the XY direction and the height direction by the grip support (18) and the height position support (17), the valve support plate (34) is sucked and supported by the vacuum chuck (35). The cam rod (41), which retreats due to the suppression of the cathode ray tube (B), uses its cam surface to displace the regulating jig (42) in the radial direction of the valve holder (31), and uses its regulating plate (49) to move the regulating jig (42) to its opposing position. The rug board (
L) is pressed and displaced to regulate the radial position of its valve pedestal (31). Thereafter, the valve pedestal (31) is moved back to a predetermined position by driving the cylinder (3). Due to this retreat, the regulating plate (49) descends while contacting the lug plate (L) and retreats below the lug plate (L).

Simultaneously with the mounting of the cathode ray tube (B), the roller (7) is rotated in the forward direction to feed the metal strip (M).

The fed metal strip (M) is curved along the fixed guide (8) and the slide guide (10), and is positioned and supported by the cathode ray tube (B) on the valve holder (31) and the supporter. The lug plate (
L) is arranged so as to surround it from the outside.

The tip of the fed metal strip (M) is fixed with the first fixed grip (20a), and the slide guide (10) is retracted in the direction away from the fixed guide (8) by the pair of left and right cylinders (9). After letting the metal strip (M) escape, heating electrodes (lla) and (llb) are pressed into contact with the metal strip (M), one heating electrode (lla) is used as an anode, the other heating electrode (Ilb) and the first fixed grip ( 20a) is grounded and heated with electricity. These heating electrodes (l
After letting la) and (llb) escape, Laura (7)
by rotating the heated metal strip (M) in the opposite direction.
is wound around the cathode ray tube (B) positioned and supported on the valve receiving plate (34), and this metal strip (M)
Apply a certain tension to the Thereby, the lug plate (L) is held between the cathode ray tube (B) and the metal strip (M).

In this state, the second fixing grip (20b) presses and fixes the overlapping part to the tip of the metal strip (M), and furthermore, the overlap part on the first fixing grip (20a) side is fixed with the cutter (20a).
1), and then the first cut. Second grip (20a
) and (20b) are spot welded using a welding electrode (22).

After the above welding is completed, the valve pedestal (31) is raised by driving the cylinder (3), and then the vacuum chuck (3) is moved up.
5) Release the suction and take out the cathode ray tube (B).

As described above, the valve pedestal (31) is configured to be movable forward and backward,
When mounting the cathode ray tube (B) on this valve holder (31) in its forward position, the radial position of the valve holder (31) of the lug plate (L) positioned and supported by the support device (6) is regulated. If the device (40) is used to displace the lug plate (L) so that the lug plate (L) does not come into contact with the cathode ray tube (B), the lug plate (L) may fall or the cathode ray tube (B) may fall due to contact.
) There is no peeling of the resin tape wrapped around the cathode ray tube (B), and the device can automatically perform explosion-proof treatment on the cathode ray tube (B).

In addition, this explosion-proof processing equipment has a regulation device that regulates the position of the lug plate (L)! (40) is provided on the valve pedestal (31), and is configured to be operated by the pressure of the cathode ray tube (B) when positioned and supported on the valve pedestal (31).
No particularly complicated mechanism is required to position the four lug plates (L), and this can be done with an extremely simple configuration.

In the above embodiment, when the cathode ray tube is mounted on the bulb holder, the metal strip is fed at the same time, but this metal strip is fed before the cathode ray tube is mounted on the bulb holder, or This may be done after the valve is positioned and supported on the valve pedestal.

〔Effect of the invention〕

The valve cradle that positions and supports the cathode ray tube is configured to be movable forward and backward, and the radial position of the valve cradle of the lug plate positioned and supported by the support device does not come into contact with the cathode ray tube positioned and supported by the valve cradle. Since a regulating device is provided, it is possible to reliably prevent contact between the cathode ray tube and the lug plate, and automatically carry out explosion-proof treatment for the cathode ray tube.

[Brief explanation of drawings]

Figures 1 (A) and (B) are a partially removed plan view of an explosion-proof treatment device that is an embodiment of the present invention, and a cross-sectional view taken along line I-1, and Figure 2 is a diagram illustrating its regulations. A front view showing the configuration of the device, FIG. 3 is a perspective view of an explosion-proof cathode ray tube, FIG. 4 is a perspective view of a lug plate, and FIGS.
B) is a partially cut-out plan view and a partially cutaway front view of a conventional explosion-proof processing device, and FIG. 6 is a perspective view of a lug plate positioning jig.

Claims (6)

[Claims] (1) A valve pedestal for positioning and supporting the cathode ray tube, and a support device provided on the outside of the bulb pedestal for positioning and supporting a lug plate attached to the cathode ray tube so as to be movable in the radial direction of the bulb pedestal. and tightening the strip to the cathode ray tube, which is fed by a feeding device and a guide so as to surround the outside of the cathode ray tube positioned and supported by the valve holder and the lug plate positioned and supported by the support device. In the explosion-proof processing device for fixing the lug plate to the cathode ray tube by this tightening, the valve holder is configured to be movable in a direction perpendicular to its radial direction, and the lug plate positioned and supported by the support device is An explosion-proof processing apparatus characterized in that a regulating device is provided for adjusting the position of the bulb holder in a radial direction so as not to contact the cathode ray tube positioned and supported by the bulb holder. (2) The explosion-proof treatment apparatus according to claim 1, wherein the regulating device is provided on the valve pedestal. (3) The regulating device is in pressure contact with a cam rod that is supported so as to move forward and backward in the forward and backward direction of the valve holder and is biased in the forward direction of the valve holder, and the cam surface of this cam rod, and as the cam rod moves back and forth. 3. The explosion-proof processing apparatus according to claim 2, further comprising a regulating jig that is displaced in the radial direction of the valve pedestal. (4) The explosion-proof processing apparatus according to claim 3, wherein the cam rod protrudes from the valve pedestal so as to be pushed back by the cathode ray tube positioned and supported by the valve pedestal. (5) The explosion-proof processing device according to claim 4, wherein the cam rod has a cam surface at the tip end projecting above the valve pedestal. (6) The regulation jig has a linear guide fixed to the valve holder, a slider that moves along the linear guide, a cam floor attached to the slider, and a regulation plate fixed to the slider. An explosion-proof processing apparatus according to claim 3, characterized in that: