EP0895649A1 - Procede et appareil pour le depoussierage de masques perfores - Google Patents

Procede et appareil pour le depoussierage de masques perfores

Info

Publication number
EP0895649A1
EP0895649A1 EP97950454A EP97950454A EP0895649A1 EP 0895649 A1 EP0895649 A1 EP 0895649A1 EP 97950454 A EP97950454 A EP 97950454A EP 97950454 A EP97950454 A EP 97950454A EP 0895649 A1 EP0895649 A1 EP 0895649A1
Authority
EP
European Patent Office
Prior art keywords
shadow mask
dust removal
dust
dust removing
removing apparatus
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.)
Withdrawn
Application number
EP97950454A
Other languages
German (de)
English (en)
Inventor
Sheung Ihn Samsung 3rd Apt. CHO
Jae Bong Yukseong Villa YEOM
Chang Hee 17-2 7 6-ga JANG
Hyung S. Yoowon Jeil Apt. 4-1005 YOON
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Samsung SDI Co Ltd
Original Assignee
Samsung Display Devices Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Priority claimed from KR2019960064424U external-priority patent/KR200149630Y1/ko
Priority claimed from KR1019970028477A external-priority patent/KR19990004386A/ko
Priority claimed from KR1019970028478A external-priority patent/KR19990004387A/ko
Application filed by Samsung Display Devices Co Ltd filed Critical Samsung Display Devices Co Ltd
Publication of EP0895649A1 publication Critical patent/EP0895649A1/fr
Withdrawn legal-status Critical Current

Links

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
    • H01J9/142—Manufacture of electrodes or electrode systems of non-emitting electrodes of shadow-masks for colour television tubes
    • 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
    • H01J9/38—Exhausting, degassing, filling, or cleaning vessels

Definitions

  • the present invention relates to a method and apparatus for removing
  • CRTs cathode ray tubes
  • the CRT includes a phosphor
  • the shadow mask includes a mask having a plurality of beam-guide
  • the beam-guide apertures land the electron beams deflected by the
  • the electron beams are partly or entirely blocked in the beam-guide
  • ultrasonic cleaning process are usually employed to remove the defect.
  • processing the shadow mask is completed because it not only decreases the production effects but also increases the production costs.
  • the present invention is directed to a method and
  • An object of the present invention is to provide a method and apparatus
  • the shadow mask is not only fed to but also immovably fixed on the dust removal position so as to prevent it from
  • Shadow mask is delivered to a next process.
  • the dust removing apparatus for performing the aforementioned dust
  • removing operation includes a shadow mask feeding and delivering unit for
  • the dust removing apparatus according to the present invention may
  • the dust removing apparatus for removing the dusts adhered on the
  • exterior of the shadow mask includes a shadow mask feeding and delivering
  • the dust removing apparatus may be also an apparatus for removing
  • the dust removing apparatus for removing the dusts adhered on the
  • the interior of the shadow mask includes a shadow mask feeding and delivering
  • the dust removing apparatus may be also an apparatus for
  • the dust removing apparatus for simultaneously removing the dusts
  • an internal dust removing unit for removing the dusts adhered on the
  • the beam-guide aperture clogging defect can be removed owing to rapid and
  • Fig. 1 is a front view of a dust removing apparatus for removing dusts
  • Fig. 2a is a front view showing the initial state of the dust removing
  • Fig. 2b is a front view showing the state of the dust removing apparatus
  • Fig. 2c is a front view of the dust removing apparatus showing the
  • Fig. 3 is a perspective view of a dust removing apparatus for removing dusts from the interior of a shadow mask according to a second preferred
  • Fig. 4 is a plan view of the dust removing apparatus according to the
  • Fig. 5a is a front view showing the initial state of the dust removing
  • Fig. 5b is a fragmentary sectional front view showing the state of the
  • Fig. 5c is a fragmentary sectional front view showing the state of the
  • Fig. 5d is a fragmentary sectional front view showing the state of the
  • Fig. 6 is a perspective view of a dust removing apparatus for
  • Fig. 7a is a front view showing the initial state of the dust removing
  • Fig. 7b is a front view showing the state of the dust removing apparatus
  • Fig. 7c is a front view showing the state of the dust removing apparatus
  • Fig. 7d is a front view showing the state of the dust removing apparatus
  • the shadow mask according to the third preferred embodiment.
  • present invention includes a shadow mask feeding and delivering unit for
  • Fig. 1 is a front view of a dust removing apparatus for removing dusts
  • Fig. 2a is a front view showing the initial state of the dust
  • Fig. 2b is a
  • FIG. 1 front view showing the state of the dust removing apparatus in which a dust
  • Fig. 2c is a front view of the
  • the dust removing apparatus for removing dusts from the exterior of
  • shadow mask feeding and delivering unit for feeding the shadow mask S to a
  • the shadow mask feeding and delivering unit includes a conveyer C for
  • the conveyer C is arranged between delivering devices (not shown).
  • the conveyer C is a roller conveyer, but a belt
  • the external dust removing unit includes a base frame 1 positioned
  • a dust removal tape 3 having a side applied with adhesive materials, a tape guide unit for guiding the dust removal tape 3 onto
  • the roller conveyer C is provided with a regular position stopper 5 for
  • position stopper 5 is driven by an actuator (not shown).
  • the roller conveyer C is further provided with an interference
  • stopper supporting members are disposed on both sides of a conveyer frame 9
  • the regular position stopper 5 is
  • the dust removal tape 3 has an end wound on a circular winding base
  • the dust removal tape 3 also has an opposing end wound on the
  • winding base (not shown) mounted on a winding roller 13.
  • roller 13 is spaced apart from the rotary roller 11 with a predetermined distance.
  • the width of the dust removal tape 3 is greater than that of a mask
  • the dust removal tape 3 is a polyethylene tape and has a thickness of 0.05 mm, an adhesive force of 120g/25 mm, a tensional
  • the tape guide unit includes two elevators 15 and 17 fixed on the base
  • the elevators 15 and 17 includes guide cylinders 15a and 17a for
  • the guide cylinders 15a and 17a are arranged between the rotary roller
  • guide cylinders 15a and 17a should be at least longer than the longitudinal
  • guide rollers 15c and 17c are vertically provided under the
  • Guide members 15d and 17d are also provided at the bottom of the guide
  • pistons 15b and 17b to combine the guide pistons 15b and 17b with the guide
  • rollers 15c and 17c such that the guide rollers 15c and 17c can be rotated.
  • the winding roller 13 is arranged above the shadow mask S by the guidance of
  • the shadow mask S makes in contact with the exterior of the shadow mask S.
  • the dust removal tape 3 does not uniformly contact the overall surface of the shadow mask S because an air is remained on the
  • contact unit spurts high-pressure air on the contact side between the dust
  • the pressure contact unit includes two pressure cylinders 19 for
  • a motor 21 is connected to the winding roller 13.
  • the winding roller 13 is rotated by the motor 21 to wind the dust removal tape 3
  • shadow mask S is continuously replaced by a new one so that deterioration in
  • the dust removal efficiency can be prevented. As described above, when the dust removal tape 3 is attached on or
  • the shadow mask S should be fixed on the dust removal position
  • each are driven by an actuator (not shown) and pressurize the skirt of the
  • the supporting rollers 25 prevent the
  • interference prevention stopper 7 is protruded backward the interference prevention stopper 7
  • shadow mask S and prevents it from interfering with a following shadow mask S.
  • pistons 19a is spaced apart from the dust removal tape 3 contacting the
  • the air feeder 19b spurts high-pressure air on the dust removal tape 3
  • the motor 21 rotates the winding roller 13 with a predetermined
  • roller conveyer C delivers the dust-removed shadow
  • the dust removing operation can be continuously performed through
  • FIG. 3 is a perspective view of a dust removing apparatus for removing
  • Fig. 4 is a plan view of the dust removing
  • Fig. 5a is a front
  • Fig. 5b is a fragmentary sectional front view
  • Fig. 5c is a fragmentary
  • a balloon is blown up and a dust removal tape is attached on the interior of the
  • Fig. 5d is a fragmentary sectional front view showing the
  • the dust removing apparatus for removing dusts from the interior of the
  • shadow mask feeding and delivering unit for feeding the shadow mask S to a
  • roller conveyer C1 is also a roller conveyer C1 as is in the first preferred
  • roller conveyer C1 is
  • the internal dust removing unit includes a dust removal tape 33 and a
  • removal tape 33 is a polyethylene tape as is in the first preferred embodiment.
  • the tape attachment unit includes a balloon 45 positioned under the
  • the dust removal tape 33 has an end wound on a circular winding base
  • the dust removal tape 33 also has an opposing end
  • the dust removal tape 33 lengthened between the rotary roller 41 and
  • the winding roller 43 is positioned between the shadow mask S and the balloon
  • a pipe 47 is connected to the bottom of the balloon 45.
  • the pipe is to feed air into the balloon 45 to inflate it while the pipe supports the
  • the balloon 45 inflates to uniformly attach the dust removal tape 33 on
  • the balloon 45 should be elevated toward the interior of the shadow
  • a hose 49a is connected to one side of the lift 49 to feed high-pressure
  • the lift 49 receives high-pressure air from the hose 49a to feed it
  • a motor 51 is connected to the winding roller 43 to rotate it and thereby
  • interference prevention stopper 37 is also protruded to prevent the shadow
  • the balloon 45 is inflated upon receipt of air from the lift 49
  • the dust removal tape 33 may still be attached
  • the motor 51 rotates the winding roller 43 with a predetermined angle to
  • stopper 37 enter into the stopper supporting members 39b respectively and the
  • roller conveyer C1 delivers the dust-removed
  • Fig. 6 is a perspective view showing a dust removal apparatus for
  • Fig. 7a is a
  • Fig. 7b is a front view showing the state of the third preferred embodiment
  • Fig. 7c is a front view showing the state of the dust removing
  • Fig. 7d is a front view
  • the dust removing apparatus for simultaneously removing dusts from
  • stoppers 93 as are in the previous preferred embodiments.
  • the external dust removing unit includes a base frame 61 positioned
  • a tape guide unit for guiding the first dust
  • the first dust removal tape 63 has an end wound on a circular winding
  • the first dust removal tape 63 also has an opposing end wound on the
  • winding roller 73 is
  • the first dust removal tape 63 is a polyethylene tape as is in the first
  • the tape guide unit includes two elevators 75 and 77 fixed on the base
  • the elevators 75 and 77 include guide cylinders 75a and 77a for
  • the guide cylinders 75a and 77a is arranged between the rotary roller
  • the distance between the guide cylinders 75a and 77a should be at least longer than the longitudinal
  • guide rollers 75c and 77c are vertically provided under the
  • Guide members 75d and 77d are also provided at the bottom of the guide
  • rollers 75c and 77c such that the guide rollers 75c and 77c can be rotated.
  • pressure contact unit spurts high-pressure air on the contact side between the first dust removal tape 63 and the shadow mask S.
  • the pressure contact unit includes two pressure cylinders 79 for
  • a motor 80 is connected to the winding roller 73.
  • the winding roller 73 is rotated by the motor 21 to wind the first dust removal
  • roller 73 and the other guide roller 77c.
  • the supporting rollers 85 prevent the
  • the internal dust removing unit includes a second dust removal tape 63
  • the tape attachment unit includes a balloon 85 positioned under the
  • the second dust removal tape 63 has an end wound on a circular
  • the second dust removal tape 63 lengthened between the rotary roller
  • a pipe 87 is connected to the bottom of the balloon 85.
  • the pipe is to feed air into the balloon 85 to inflate it while the pipe supports the
  • the balloon 85 inflate to uniformly attach the second dust removal tape
  • the upper portion of the inflated balloon 85 has the same curvature as the
  • the balloon 85 should be elevated toward the interior of the shadow
  • lift 89 is connected to the bottom of the pipe 87 to elevate the balloon 85
  • the lift 89 receives high-pressure air from the external to feed it into the
  • a motor 90 is connected to the winding roller 83 to rotate it and thereby
  • interference prevention stopper 67 is also protruded to prevent the shadow
  • pistons 79a is spaced apart from the first dust removal tape 63 contacting the
  • the air feeder 79b spurts high-pressure air on the first dust removal
  • the motor 80 rotates the winding roller 73 with a predetermined
  • the balloon 85 is inflated upon receipt of air from the lift 89
  • the second dust removal tape 63 may still be
  • the motor 90 rotates the winding roller 83 with a
  • roller conveyer C2 delivers the dust-removed
  • the beam-guide aperture clogging defect can be removed owing to rapid and

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Cleaning In General (AREA)
  • Manufacture Of Electron Tubes, Discharge Lamp Vessels, Lead-In Wires, And The Like (AREA)

Abstract

Cette invention se rapporte à un procédé servant à dépoussiérer un masque perforé (S), ce procédé consistant à acheminer le masque perforé jusqu'à une position de dépoussiérage, à éliminer les poussières collées au masque perforé, et à acheminer le masque perforé ainsi dépoussiéré jusqu'à l'opération de traitement suivante. L'élimination de la poussière s'effectue au moyen d'une bande d'élimination de poussière (3) comportant une face de contact recouverte d'un enduit gommé. La poussière est éliminée des deux côtés du masque perforé, du côté interne et du côté externe, et en même le masque perforé est placé en support sur un ballonnet.
EP97950454A 1996-12-30 1997-12-29 Procede et appareil pour le depoussierage de masques perfores Withdrawn EP0895649A1 (fr)

Applications Claiming Priority (7)

Application Number Priority Date Filing Date Title
KR2019960064424U KR200149630Y1 (ko) 1996-12-30 1996-12-30 칼라 음극선관용 새도우 마스크의 제진장치
KR9664424 1996-12-30
KR9728477 1997-06-27
KR9728478 1997-06-27
KR1019970028477A KR19990004386A (ko) 1997-06-27 1997-06-27 음극선관용 섀도우마스크 제진장치
KR1019970028478A KR19990004387A (ko) 1997-06-27 1997-06-27 음극선관용 섀도우마스크 제진장치
PCT/KR1997/000280 WO1998029892A1 (fr) 1996-12-30 1997-12-29 Procede et appareil pour le depoussierage de masques perfores

Publications (1)

Publication Number Publication Date
EP0895649A1 true EP0895649A1 (fr) 1999-02-10

Family

ID=27349441

Family Applications (1)

Application Number Title Priority Date Filing Date
EP97950454A Withdrawn EP0895649A1 (fr) 1996-12-30 1997-12-29 Procede et appareil pour le depoussierage de masques perfores

Country Status (6)

Country Link
EP (1) EP0895649A1 (fr)
JP (1) JP2000507385A (fr)
CN (1) CN1214795A (fr)
AU (1) AU5344598A (fr)
BR (1) BR9709156A (fr)
WO (1) WO1998029892A1 (fr)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101002001B1 (ko) * 2004-02-02 2010-12-16 엘지디스플레이 주식회사 마스크 입자 제거 장치
CN109454968B (zh) * 2018-12-21 2024-03-01 浙江爱漫时智能家居有限公司 一种墙布复合机
CN111959864A (zh) * 2020-07-31 2020-11-20 昆山铭世特精密机械有限公司 一种用于凸面曲面屏的贴膜装置
CN115069684B (zh) * 2022-07-21 2022-10-28 山东睿芯半导体科技有限公司 芯片自动除尘设备
CN115652603B (zh) * 2022-09-23 2023-09-01 南通如日纺织有限公司 涂层布生产用涂层装置
CN115958304B (zh) * 2022-11-30 2024-01-30 江苏瑞普森电路科技有限公司 一种集成电路打标除尘装置

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0246622A (ja) * 1988-08-06 1990-02-16 Mitsubishi Electric Corp カラーブラウン管の製造方法

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO9829892A1 *

Also Published As

Publication number Publication date
WO1998029892A1 (fr) 1998-07-09
BR9709156A (pt) 1999-08-03
CN1214795A (zh) 1999-04-21
AU5344598A (en) 1998-07-31
JP2000507385A (ja) 2000-06-13

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