CN1017479B - Apparatus for appalying graphite to inside surface of funnelshaped cover for kinescope - Google Patents
Apparatus for appalying graphite to inside surface of funnelshaped cover for kinescopeInfo
- Publication number
- CN1017479B CN1017479B CN89100965A CN89100965A CN1017479B CN 1017479 B CN1017479 B CN 1017479B CN 89100965 A CN89100965 A CN 89100965A CN 89100965 A CN89100965 A CN 89100965A CN 1017479 B CN1017479 B CN 1017479B
- Authority
- CN
- China
- Prior art keywords
- glass bulb
- graphite
- mentioned
- infundibulate
- graphite applying
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
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Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J9/00—Apparatus or processes specially adapted for the manufacture, installation, removal, maintenance of electric discharge tubes, discharge lamps, or parts thereof; Recovery of material from discharge tubes or lamps
- H01J9/02—Manufacture of electrodes or electrode systems
- H01J9/14—Manufacture of electrodes or electrode systems of non-emitting electrodes
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J9/00—Apparatus or processes specially adapted for the manufacture, installation, removal, maintenance of electric discharge tubes, discharge lamps, or parts thereof; Recovery of material from discharge tubes or lamps
- H01J9/20—Manufacture of screens on or from which an image or pattern is formed, picked up, converted or stored; Applying coatings to the vessel
- H01J9/22—Applying luminescent coatings
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Formation Of Various Coating Films On Cathode Ray Tubes And Lamps (AREA)
- Coating Apparatus (AREA)
Abstract
To enable uniform application of graphite on a cavity automatically by bringing a brush into contact with the cavity, and rotating the brush by an actuator. A member to be driven and a funnel 1 are rotated by means of a motor 14. Since there is a constant relation between the cavity provided on the funnel 1 and a detection member provided on the driven member, when the position of detection member is detected by means of a sensor, and the motor 14 is stopped, the cavity is always stopped at a constant position. When a brush 29 is arranged so as to be in contact with the cavity with the rotation of a brush arm 27, graphite is applied to the cavity by abutting the brush 29 against the cavity after the stoppage of motor 14, and by rotating the brush with an actuator 28. It is thus possible to apply graphite to the cavity uniformly and automatically.
Description
The present invention relates to device in the inner surface coated graphite of the infundibulate glass bulb of used for color picture tube, in more detail, relate on the inner surface of infundibulate glass bulb, in near the anode electrode in imbedding infundibulate glass bulb wall thickness, that be commonly referred to " cell (cavity) " the depression, the device of automatic coating graphite.
Usually, in order in chromoscope, to form positive electric field, must form one deck conductive layer 2, as shown in Figure 3 at the inner surface of infundibulate glass bulb 1 coated graphite powder equably.In the past, the device of employed coated graphite comprises clamping picture tube infundibulate glass bulb and revolvable clamper for this purpose, wherein the uncovered part of infundibulate glass bulb is exposed at the clamper outside, and keep certain position, the applicator that also comprises the suspension that has flooded graphite powder, this device in use makes this applicator compress the inner surface of infundibulate glass bulb, makes the glass bulb rotation simultaneously, automatically coated graphite.
On the other hand, in the wall thickness of the infundibulate glass bulb 1 of glass, to imbed the metallic anode electrode 3 that is commonly referred to " cell ", and, around the electrode 3 after imbedding, on the inner surface 1a of glass bulb 1, can produce depression 1a ' owing to the technologic reason of this electrode 3 being imbedded in the glass.The size of this depression 1a ' and shape have nothing in common with each other for a lot of picture tubes, graphite applying arrangement before adopting, can not automatically arrive graphite applying the surface of all depression 1a ', and can on the inner surface of this infundibulate glass bulb 1, stay the part depression 1a ' that graphite is not coated to.Therefore, had in the past method by hand to uncoated in all picture tubes to the depression 1a ' coated graphite of graphite or repair.
Therefore, purpose of the present invention just provide a kind of can be on the inner surface 1a of infundibulate glass bulb 1, around anode electrode 3, the graphite applying arrangement of coated graphite automatically and equably.
The present invention is on the inner surface of picture tube with the infundibulate glass bulb, near the anode electrode in imbedding its wall thickness, the device of coated graphite, it comprises clamping infundibulate glass bulb and revolvable clamping device, the uncovered part of infundibulate glass bulb is exposed outside clamping device, and keep certain position, it is characterized in that it also comprises following parts:
Positioning element with detected part, it and above-mentioned glass bulb clamping device rotate together, and the detected portion branch is arranged to keep with above-mentioned anode electrode the position relation of regulation;
Drive the drive unit that above-mentioned glass bulb clamping device rotates;
Detect after above-mentioned detected part forwarded the position of regulation to, send the transducer that makes the signal that above-mentioned drive unit stops;
The graphite applying device that can move between the primary importance and the second place, primary importance are meant near above-mentioned anode electrode and the contacted position of glass bulb inner surface that the second place is meant the position of accepting graphite powder suspension in the outside of this glass bulb;
Output signal reaction to the sensor makes above-mentioned graphite applying device move to the applicator mobile device that above-mentioned primary importance is gone from said second position;
Make this graphite applying arrangement applicator tumbler around the rotation of the axis of this graphite applying device on above-mentioned primary importance.
As mentioned above, in graphite applying arrangement of the present invention, for the detected part that makes positioning element is positioned at respect on the assigned position of imbedding the anode electrode in the glass bulb wall thickness, when this detected part forwards assigned position to, transducer promptly sends signal, drive unit is stopped, meanwhile, the mobile device of applicator is reacted to the signal of this transducer output, the graphite applying device is moved near above-mentioned anode electrode and the contacted position of the inner surface of glass bulb (primary importance) from the second place, so the graphite applying device just is positioned on the position of the depression on the glass bulb inner surface automatically.And, move on the applicator that primary importance goes at this, when it is in the second place, flooded the suspension of graphite powder, so, the applicator that rotates by means of the applicator tumbler on primary importance just can be automatically and coated graphite powder on the depression of glass bulb inner surface reliably.
Fig. 1 is the end view of coated graphite device of the present invention;
Figure 1A is the local amplification view of applicator support;
Fig. 2 is the cutaway view along Figure 1A-A line;
Fig. 3 is the longitudinal section of the infundibulate glass bulb used of picture tube;
Fig. 4 is the local amplification view of infundibulate glass bulb, has wherein represented to imbed the anode electrode in the glass bulb.
Fig. 1 and Fig. 2 with reference to the accompanying drawings illustrate embodiments of the invention.
Represented graphite applying arrangement is on the circumference of a very big rotary table (not shown) in the accompanying drawing, for producing a device in the many applying devices that are provided with in a large number.All graphite applying arrangements, its structure is all identical with the course of work, only just can be implemented in the process of the inner surface coated graphite of the infundibulate glass bulb that picture tube uses, so it is just passable to need only a graphite applying arrangement shown in the key diagram with a graphite applying arrangement.
Be configured for the hollow cylindrical clamper 4 of the clamping device of clamping infundibulate glass bulb 1, be fixed on from a pair of supporting arm 5 that above-mentioned rotary table (not shown) is stretched and (only represented an arm the figure), the neck that can insert infundibulate glass bulb 1 is housed in the inside of clamper 4, and make it remain on rotary body (not shown) on the assigned position, this rotary body rotating shaft 6 protrudes from the bottom surface of clamper 4, and a disk 7 is fixed on the rotating shaft 6 of this protrusion.
Said structure is known before being, does not just describe in detail here.
On rotating shaft 6, also be fixed with positioning disc 8, on the circumference of this disk 8, process circular arc cutaway 8a.Positioning disc 8 is like this with respect to rotating shaft location and be fixed on the rotating shaft 6, that is, when glass bulb 1 was clamped in the position of regulation by above-mentioned not shown rotary body, breach 8a was on the assigned position facing to the anode electrode 3 of glass bulb 1.
On the other hand, on the pedestal 10 that is in tilted layout, supporting the bearing pin 12 that energy freely rotate by bearing 11, one end of swinging mounting 13 just is fixed on the bearing pin 12, the other end of swinging mounting 13 is installed motor 14, fixing roller 15 on the output shaft of this motor, roller 15 is arranged on the external peripheral surface position contacting that makes it and above-mentioned positioning disc 8.In addition, cylinder 16 with pivot suspension near the end of pedestal 10, an end of lever 17 is connected with the piston rod 16a of cylinder 16 with pivot, and the other end is connected with swinging mounting 13 with pivot.Connecting rod 18 runs through swinging mounting 13 and lever 17, can be free therein movable, at the two ends of connecting rod 18 locking nut 19 is housed, 20, be with a compression helical spring 21 in the periphery of connecting rod 18, its length extends between swinging mounting 13 and the lever 17, therefore, when the piston rod 16a of cylinder 16 elongation, its motion makes lever 17 rotate, the rotation of lever 17 has by spring 21 and flexibly passes to swinging mounting 13, so swinging mounting 13 is from double dot dash line position shown in Figure 2, with bearing pin 12 is that swing in the counterclockwise direction at the center, and roller 15 is contacted with the outer round surface of positioning disc 8.Under this state, motor 14 driving rollss 15 rotate, rely on the frictional force between roller 15 and the positioning disc 8, positioning disc 8 is passed in the rotation of roller 15, disk 8 is rotated, so the not shown above-mentioned rotary body that goes out of rotating shaft 6 and clamper 4 the insides also rotates, thereby drive 1 rotation of infundibulate glass bulb.
On pedestal 10, also fixing transducer 22 by support 23, this transducer is the change in location when falling into the breach 8a of positioning disc 8 by means of roller 15, detect the position (being position shown in Figure 2) of swinging mounting 13, thereby detect the position of the above-mentioned anode electrode 3 of glass bulb 1.In the present embodiment, this transducer 22 be by known near switch, (non-contact switch) made.
See Fig. 1, on the right side of above-mentioned clamper 4, on interior vertical plane, be provided with the column 24 of perpendicular at the axis that comprises rotating shaft 6, drive unit support plate 25 is fixed on the upper end of column 24.On support plate 25, fixing by driving shaft 26 compressed air-driven, that have output shaft 26a, one end of applicator support 27 just is fixed on this root output shaft 26a, support 27 is arranged in the above-mentioned axis that comprises rotating shaft 6 in interior vertical plane, rotates between the position that can represent by means of the drive unit 26 visible position of representing with solid line and double dot dash line in Fig. 1.The other end of applicator support 27 is divided into two forks, second drive unit 28 is installed in the centre of two forks by pivot 28a, the disc graphite applying device made from sponge 29 is housed, and applicator 29 can come back rotation around the axis of output shaft in 180 ° of scopes on the output shaft of second drive unit 28.In the side of drive unit 28 L shaped carriage 30 is housed, the front end of lock-screw 31 is screwed in the screw on the horizontal component of this carriage, the bar portion of this lock-screw is passed on the applicator support 27 and forms, penetrate into following slotted hole 27a(referring to Figure 1A from above), and the head of this lock-screw 31 with contact above the applicator support 27.
The following describes the course of work.Before the graphite applying operation begins, swinging mounting 13 is on the position of double dot dash line among Fig. 2, graphite applying device 29 and applicator support 27 are on the double dot dash line position among Fig. 1, on this position, to graphite applying device 29 supply graphite suspensions (solvent that contains graphite powder), make the graphite applying device be in the holding state that is full of graphite suspension by not shown graphite feeding mechanism.
Be under the positioning states with respect to clamper 4 shown in Figure 1 at infundibulate glass bulb 1, this glass bulb 1 is clamped on the not shown rotary body that goes out in the clamper 4, then, drive cylinder 16 actions, its piston rod is stretched out forward.So, swing in the counterclockwise direction the double dot dash line position of swinging mounting 13 from Fig. 2, be flapped toward solid line position, roller 15 is pressed on the outer round surface of positioning disc 8, under such state, starts motor 14, make positioning disc 8 rotations by roller 15, so rotating shaft 6 also rotates, make among the above-mentioned figure rotary body of expression not and be clamped in also rotation simultaneously of infundibulate glass bulb 1 on this rotary body.When positioning disc 8 forwarded roller to and falls into breach 8a, swinging mounting 13 was just put the position shown in the solid line among Fig. 2, after transducer 22 detects swinging mounting and arrived this position, just sent detection signal.Motor 14 quits work according to this signal.That is to say that glass bulb 1 is in the axis in interior vertical plane time that comprises rotating shaft 6 in the position that rotates to anode electrode 3, just stop the rotation.
The signal that above-mentioned drive unit 26 response the sensors 22 are sent begins action, applicator support 27 is rotated to solid line position from the double dot dash line position of Fig. 1, thereby graphite applying device 29 is leaned against on the inner surface of infundibulate glass bulb 1.At this moment, do not represent among the figure, the transducer that is installed on the drive unit 26 sends signal, second drive unit is reacted to this signal, begin action, make graphite applying device 29 do several times 180 ° reciprocal rotation such as three times, in this reciprocal rotating process, second drive unit 28 can rotate slightly around axle 28a, can be on the inner surface 1a that the most stably is pressed against infundibulate glass bulb 1 until graphite applying device 29, slide because the bar portion of lock-screw 31 can process in the slotted hole 27a on applicator support 27, rotate slightly so allow second drive unit.
Because the above-mentioned anode electrode 3 in the infundibulate glass bulb 1, with graphite applying device 29 be co-located on comprise rotating shaft 6 axis in interior vertical plane, so, the graphite applying device 29 that moves to the solid line position of Fig. 1 by means of the action of drive unit 26 just contacts with the inner surface of infundibulate glass bulb 1 being positioned on the conplane position with anode electrode 3.The diameter of graphite applying device 29 is more much bigger than the diameter of anode electrode 3, even the center of graphite applying device 29 does not temporarily overlap with the center of anode electrode 3, also can lean on the back rotation of coming of graphite applying device 29, in the zone that comprises the depression 1a ' around the anode electrode 3 in the inner surface that is embedded in infundibulate glass bulb 1, the automatic coating powdered graphite.Therefore, the graphite applying arrangement in the present embodiment can be used for the glass bulb of multiple size.
The back rotation of coming of graphite applying device 29 has reached after the number of times of regulation, just can stop operating automatically, and meanwhile, drive unit 26 makes applicator support 27 rise to double dot dash line position among Fig. 1.Simultaneously, cylinder 16 is regained piston rod 16a, makes swinging mounting 13 retreat into the double dot dash line position, has finished the graphite applying operation of anode electrode 3 near zones of an infundibulate glass bulb inner surface, and whole device is waited for and begun operation next time.
Above-mentioned graphite applying operation can be carried out before the operation of the total inner surface 1a of glass bulb 1 coated graphite, also can carry out after this operation.Just, carry out on another station in coated graphite on the total inner surface 1a of glass bulb 1, at this moment, disk 7 be subjected to not shown motor revolving force driving and rotate, make rotating shaft 6 also do constant speed rotation, in addition, another not shown graphite applying device with glass bulb inner surface state of contact under reciprocating motion before and after doing, so just on whole inner surfaces of glass bulb, the helix shape that Yi Yiquan connects a circle is coated with and applies powdered graphite.And the front is narrated, the operation of coated graphite powder near the glass bulb inner surface the anode electrode 3 was carried out before or after this comprehensive coated graphite operation.
In the above-described embodiments, the position of the swinging mounting 13 when roller 15 falls into breach 8a set on the disk 8, be by measuring with the transducer of making near switch automatically 22, but also can this transducer 22, and on disk 8, offer an aperture (not shown), measure the position of swinging mounting 13 by the light of this aperture with light sensors.
Claims (10)
1, a kind of graphite applying arrangement, inner surface coated graphite coating in order to limited position around the anode in the shell wall that is embedded in picture tube infundibulate glass bulb, clamping device with infundibulate glass bulb, this clamping device makes the opening portion of infundibulate glass bulb open, and be held in a predetermined position, and can with the infundibulate glass bulb simultaneously around the rotational of this glass bulb neck, this graphite applying arrangement is characterised in that it comprises following each several part:
Detected part, before described infundibulate glass bulb clamping device and the rotation of described infundibulate glass bulb, be positioned in around neck the axis partly of described infundibulate glass bulb to become on the position of a predetermined angular with respect to described anode with respect to described infundibulate glass bulb glass clamping device;
Drive unit in order to the clamping device that drives described infundibulate glass bulb, described infundibulate glass bulb and described detected part, makes their rotational around described glass bulb neck;
Disc compressibility graphite applying device, can be around self rotational, and it is also mobile between the second place of impregnation graphite powder suspension-turbid liquid to be in the outside absorption of described infundibulate glass bulb at primary importance that it contact with the described limited position of described infundibulate glass bulb inner surface and its;
One transducer, detect described detected part when reaching the precalculated position corresponding to the primary importance of described graphite applying device in described detected part, to export a signal, this signal makes drive unit stop to drive, thereby described infundibulate glass bulb clamping device, described infundibulate glass bulb and described detected part are stopped operating;
Applicator travel mechanism delivers described graphite applying device, and the signal of exporting according to described transducer during work moves on to described primary importance with described graphite applying device from the described second place; With
The applicator tumbler, be contained in the described applicator travel mechanism, the graphite applying device is rotated in described primary importance, make described graphite applying device keep contacting simultaneously with the described limited position of infundibulate glass bulb inner surface, thus make described graphite applying device with graphite applying to the described limited position of described infundibulate glass bulb inner surface.
2, graphite applying arrangement as claimed in claim 1 is characterized in that, described detected part be by with the coaxial positioning disc circumference of described infundibulate glass bulb clamping device on the breach that processes constitute.
3, graphite applying arrangement as claimed in claim 2, it is characterized in that, above-mentioned drive unit is by being constituted with the motor that the external peripheral surface of above-mentioned positioning disc be done the roller of frictional drive and driving rolls rotation, when above-mentioned rollers fell into above-mentioned breach, the sensor promptly sent above-mentioned signal.
4, graphite applying arrangement as claimed in claim 3, it is characterized in that, above-mentioned rollers and motor support by swinging mounting, and this swinging mounting can make above-mentioned rollers to the direction of the external peripheral surface that is pressed on positioning disc and direction swing in contrast to this by means of actuating force.
5, graphite applying arrangement as claimed in claim 4 is characterized in that, the sensor is to borrow to detect above-mentioned rollers and measure above-mentioned detected part and forwarded the afore mentioned rules position in the position of above-mentioned swinging mounting when falling into above-mentioned breach.
6, graphite applying arrangement as claimed in claim 5 is characterized in that, the sensor is by being installed in constituting near switch automatically on the static parts.
7, graphite applying arrangement as claimed in claim 1 is characterized in that, described detected part by with the coaxial positioning disc of infundibulate glass bulb clamping device on the aperture that processes constitute, described transducer is the optical sensor that detects by the light of this aperture.
8, as each described graphite applying arrangement of claim 2 to 7, it is characterized in that, above-mentioned applicator drive unit is made of the applicator support and first drive unit, one end of this first drive unit is connected with this applicator support, and can make the applicator support swing a predetermined angle at the rotation that comprises above-mentioned glass bulb clamping device in interior plane.
9, as graphite applying arrangement as described in the claim 8, it is characterized in that above-mentioned applicator tumbler is made of second drive unit that is installed in the above-mentioned applicator support other end, above-mentioned applicator promptly is installed on the rotating output shaft of this second drive unit.
10, graphite applying arrangement as claimed in claim 9 is characterized in that, above-mentioned second drive unit is mounted to and can swings in the angular range of regulation with respect to the other end of this applicator support.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10612/88 | 1988-01-22 | ||
| JP63010612A JPH01187726A (en) | 1988-01-22 | 1988-01-22 | Device for applying graphite for inner decoration |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1035911A CN1035911A (en) | 1989-09-27 |
| CN1017479B true CN1017479B (en) | 1992-07-15 |
Family
ID=11755064
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN89100965A Expired CN1017479B (en) | 1988-01-22 | 1989-01-21 | Apparatus for appalying graphite to inside surface of funnelshaped cover for kinescope |
Country Status (3)
| Country | Link |
|---|---|
| JP (1) | JPH01187726A (en) |
| KR (1) | KR920001497B1 (en) |
| CN (1) | CN1017479B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112103156B (en) * | 2020-08-17 | 2022-09-20 | 广东天机工业智能系统有限公司 | Light plasma tube production device and method for rotationally positioning tube body |
-
1988
- 1988-01-22 JP JP63010612A patent/JPH01187726A/en active Pending
-
1989
- 1989-01-17 KR KR1019890000428A patent/KR920001497B1/en not_active IP Right Cessation
- 1989-01-21 CN CN89100965A patent/CN1017479B/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| CN1035911A (en) | 1989-09-27 |
| JPH01187726A (en) | 1989-07-27 |
| KR890012340A (en) | 1989-08-25 |
| KR920001497B1 (en) | 1992-02-15 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C06 | Publication | ||
| PB01 | Publication | ||
| C13 | Decision | ||
| GR02 | Examined patent application | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C15 | Extension of patent right duration from 15 to 20 years for appl. with date before 31.12.1992 and still valid on 11.12.2001 (patent law change 1993) | ||
| OR01 | Other related matters | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: CPT (Fuzhou) Co., Ltd. Assignor: Hitachi Ltd. Contract fulfillment period: In March 31, 2006, 4 years Contract record no.: 200210074 Denomination of invention: Device for coating graphite on inner surface of funnel shaped cover of kinescope Granted publication date: 19930421 License type: General Record date: 20020711 |
|
| LIC | Patent licence contract for exploitation submitted for record |
Free format text: LICENCE; TIME LIMIT OF IMPLEMENTING CONTACT: 2006.3.31, 4 YEARS Name of requester: CHUNGHWA PICTURE TUBES (FUZHOU) CO., LTD. Effective date: 20020711 |
|
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |