JPH1167084A - Insulation material application device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To favorably apply insulation material by relatively positioning a neck part of a cathode-ray tube and an application means without applying compulsory force to the neck part of the cathode-ray tube in a device to apply insulation material to the neck part of the cathode-ray tube. SOLUTION: A neck part regulation head 8 having a hole part 8a in a corresponding form to an enlarged part 1c from a neck part 1a to a cone part 1b in a cathode-ray tube 1 is provided, and the neck part regulation head 8 is set to follow the enlarged part 1c of the cathode-ray tube 1, so the neck part regulation head 8 is position-regulated without applying compulsory force to the neck part 1c, etc., in the cathode-ray tube 1. By installing a silicone application nozzle 14 onto the neck part regulation head 8, the silicone application nozzle 14 can be favorably position-regulated to the neck part 1c of the cathode- ray tube 1 with the neck part regulation head 8.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

The present invention relates to a CRT (Cathode
The present invention relates to an insulating material applying apparatus for applying an electrically insulating material such as a silicon paste to a neck portion of a CRT when manufacturing a Ray Tube.

[0002]

2. Description of the Related Art As a conventional silicon coating method for coating an electric insulating material such as silicon paste on a neck portion of a CRT, a four side portion 22a of a CRT 22 transported by a transport pallet 21 as shown in FIG. , Four panel setting devices 2 movable in the X direction and the Y direction, respectively.
After the position of the CRT 22 is fixed by pressing while pressing with 3, the position of the CRT 22 is fixed by a pair of neck portion setting arms 24 configured to be able to hold the neck portion 22b of the CRT 22 from both sides.
The neck portion 22b of the RT 22 is pinched and set, and then,
A silicon coating nozzle 25 that can be moved up and down at a predetermined position
The silicone paste was applied to the end of the neck portion 22b by approaching the neck portion 22b of the nozzle 22.

[0003]

However, in the conventional method, the weight may be increased due to the increase in the size of the CRT 22, and the setting force of the panel setting device 23 and the neck setting arm 24 may be insufficient, and the setting may not be performed. If the setting force of the panel setting device 23 and the neck setting arm 24 is increased so as to eliminate such a problem, the neck portion 22b of the CRT 22 is broken, and the setting force of the panel setting device 23 and the neck setting arm 24 is reduced. There has been such a problem that the size of the portion to be applied becomes large and these setting devices become very large.

[0004] The present invention solves the above-mentioned problem, and the CR
It is an object of the present invention to provide an insulating material applying apparatus which can apply an insulating material to a neck of a CRT without breaking a neck portion of a T or an extremely large size of a setting device. is there.

[0005]

SUMMARY OF THE INVENTION In order to solve the above-mentioned problems, the present invention relates to an insulating material applying apparatus for applying an insulating material having an electrical insulating property to a neck portion of a CRT. Moving means for moving the moving part in a direction along the axis, and a floating mechanism attached to the moving part via a floating mechanism capable of being displaced at least in the direction along the axial direction, and extending from the neck part of the CRT to the cone part side. And a coating means for applying an electrically insulating material attached so as to be integral with the copying member. With this configuration, the neck portion of the CRT is The insulating material can be satisfactorily applied to the neck portion of the CRT without breaking or making the setting device very large.

[0006]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention according to claim 1 is an insulating material applying apparatus for applying an insulating material having an electrical insulation property to a neck portion of a CRT, wherein the direction is along the axial direction of the neck portion of the CRT. A moving means for moving the moving part, and a floating mechanism which is displaceable to the moving part at least in a direction along the axial direction, and has a shape extending along a part extending from the neck part of the CRT to the cone part side. And a coating means which is attached so as to be integral with the copying member and applies an electric insulating material.

In this configuration, the moving portion is moved in the direction along the axial direction of the neck portion of the CRT by the moving means, and the copying member is moved through the neck portion to the cone side through the neck portion via the floating mechanism. If you move it towards
The surface of the hole of the tracing member abuts on the CRT in such a manner that the surface of the hole extends from the neck part of the CRT to the cone part side.
Since the copying member is set at a predetermined position without applying excessive force to the CRT, the coating means integrally attached to the copying member is also set at a predetermined position with respect to the CRT. An insulating material can be applied favorably. Hereinafter, embodiments of the present invention will be described with reference to the accompanying drawings.

In FIG. 1, 1 is a CRT, 2 is a CRT 1
The CRT 1 is placed on the transport pallet 2 and transported in a posture in which the screen side faces downward and the neck portion 1a is located upward.

Reference numeral 3 denotes a main lifting cylinder device as a moving means, which supports a lifting base 4 as a moving portion so as to be movable in a vertical direction, that is, a direction along the axis of the neck portion 1a of the CRT 1. . The main lifting cylinder device 3 is attached to a fixed base 5 fixed at a predetermined position, and the lifting base 4 is moved up and down along a guide rail 6 arranged to extend vertically on the fixed base 5. It has become so.

A neck portion setting head 8 as a copying member is attached below the lifting base 4 via a floating mechanism 7. That is, the support rod 7a of the floating mechanism 7 is inserted into the end of the portion extending in the horizontal direction of the elevating base 4 so as to be able to move somewhat in the horizontal direction or the like with a gap. A neck portion setting head 8 is attached to a lower end of 7a so as to be in a substantially horizontal posture. Further, a coil spring 9 is externally provided between the neck setting head 8 and the elevating base 4 of the support rod 7a, and the coil setting 9 urges the neck setting head 8 downward. . A retaining member 10 is attached to the upper end of the support rod 7a.

A hole 8a is formed in the center of the neck portion setting head 8, and the hole 8a has a shape extending along a portion 1c extending from the neck 1a of the CRT 1 toward the cone 1b.

Further, one end of the neck portion setting head 8 is provided with a sub-elevating device 12 on an upper portion of a vertical mounting base 11 extending upward.
And a silicon application nozzle 14 as an application unit for applying a silicon paste via a horizontal mounting base 13 attached to the lifting rod.

In the above configuration, when the CRT 1 is transported to a predetermined location by the transport pallet 2, the moving section 4 of the main lifting cylinder device 3, which has been evacuated to the upper side of the transport path in advance, is moved down. The neck portion setting head 8 and the silicon coating nozzle 14 are also lowered integrally with the moving portion 4. Then, the hole 8a of the neck portion setting head 8
The neck portion 1a of the CRT 1 is inserted into the CRT 1 and the neck portion setting head 8 is further lowered so that the wall portion of the hole portion 8a becomes CR.
It is in contact with the expanding portion 1c of T1. In this case, since the hole 8a of the neck portion setting head 8 is formed in a shape along the widened portion 1c of the CRT 1, the hole 8a is in contact with the widened portion 1c of the CRT 1 with an equal force and the relative position is good. Done in Further, since the floating mechanism 7 is provided, the widened portion 1c of the CRT 1 is not pressed with excessive force by the neck portion setting head 8, and the center position of the hole 8a of the neck portion setting head 8 and C
Even if the axial position of the neck portion 1a of the RT1 is slightly deviated, the center is aligned and the hole 8a of the neck portion setting head 8 is moved to the CRT1.
To the widened portion 1c. At the same time that the neck portion setting head 8 follows the spread portion 1c of the CRT 1, the silicon coating integrally attached to the neck portion setting head 8 via the vertical mounting base 11, the sub-elevating device 12 and the horizontal mounting base 13. The nozzle 14 is well defined at a position facing the neck 1a of the CRT 1.

Thereafter, after the main lifting / lowering cylinder device 3 is stopped, the sub-raising / lowering device 12 is driven, and the tip of the silicon application nozzle 14 is finely adjusted so as to maintain an appropriate distance from the neck portion 1a of the CRT 1, and the silicon The application nozzle 14 applies a silicon paste. When the coating operation is completed, the sub-raising / lowering device 12 separates the silicon coating nozzle 14 upward. Then, the main lifting cylinder device 3 also raises the moving portion 4 and the neck portion setting head 8, the silicon coating nozzle 14, and the like. And the next C
Prepared for RT1.

As described above, since the neck portion setting head 8 is set along the widened portion 1c of the CRT 1 without exerting an excessive force on the CRT 1, the silicon integrally attached to the neck portion setting head 8 is fixed. Coating nozzle 1
4 is also set at a predetermined position with respect to the CRT 1, and in this state, the silicon paste can be satisfactorily applied by the silicon application nozzle 14.

The expanded portion 1c of the CRT 1 is a CRT.
Regardless of the size of the CRT 1, the same type of CRT 1 can be used for a plurality of types of CRTs 1 and can be manufactured at a correspondingly low cost. A mechanism for holding down the part and the neck part 1a is not required.
The silicon paste can be satisfactorily applied to the neck 1a of the RT1, and the reliability is improved.

In the above embodiment, the case where the sub-elevating device 12 is provided has been described. However, the present invention is not limited to this, and the neck portion setting head 8 and the silicon coating nozzle 14 can be integrally moved. What is necessary is just a structure which becomes. Needless to say, an insulating material having an electrical insulating property other than the silicon paste can be used.

[0018]

As described above, according to the present invention, as a device for applying an insulating material to a neck portion of a CRT manufacturing, a CRT is not applied to a silicon application nozzle, but a CR is applied.
By providing a tracing member having a hole shaped along the flared portion from the neck of the T to the cone, and by following the tracing member to the diverging portion of the CRT, excessive force is applied to the neck of the CRT. The position of the copying member can be adjusted without applying the coating member to the copying member.
The position can be adjusted relative to the RT neck portion, and the neck portion can be prevented from being damaged.
It is also possible to prevent the device from becoming large. In addition, since the widened portion of the CRT is substantially the same regardless of the size of the CRT, it is possible to cope with a plurality of types of CRTs using a common device, and the device can be manufactured at a correspondingly low cost.

[Brief description of the drawings]

FIG. 1 is a partially cutaway side view of a silicon coating apparatus according to an embodiment of the present invention.

FIG. 2 is a schematic view of a conventional silicon coating apparatus.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 CRT 1a Neck part 1b Cone part 1c Expanding part 3 Main elevating cylinder device (moving means) 4 Elevating base (moving part) 7 Floating mechanism 8 Neck part setting head (tracing member) 8a Hole 14 Silicon coating nozzle (coating means) )

Claims (1)

[Claims] 1. An insulating material applying apparatus for applying an insulating material having an electrical insulation property to a neck portion of a CRT.
A moving means for moving the moving portion in a direction along the axial direction of the neck portion, and a floating mechanism attached to the moving portion so as to be displaceable at least in the direction along the axial direction, and the cone from the neck portion of the CRT. An insulating material applying apparatus, comprising: a copying member having a hole having a shape extending along a portion extending toward a part side; and applying means for applying an electrical insulating material so as to be integrated with the copying member.