EP0741328B1 - Dispositif pour le nettoyage de films exposés - Google Patents

Dispositif pour le nettoyage de films exposés Download PDF

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Publication number
EP0741328B1
EP0741328B1 EP95106858A EP95106858A EP0741328B1 EP 0741328 B1 EP0741328 B1 EP 0741328B1 EP 95106858 A EP95106858 A EP 95106858A EP 95106858 A EP95106858 A EP 95106858A EP 0741328 B1 EP0741328 B1 EP 0741328B1
Authority
EP
European Patent Office
Prior art keywords
film
roller
dry cleaning
fact
cleaning
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 - Lifetime
Application number
EP95106858A
Other languages
German (de)
English (en)
Other versions
EP0741328A1 (fr
Inventor
Andreas Schmitzer
Ingrid Manewald
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.)
Individual
Original Assignee
Individual
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
Application filed by Individual filed Critical Individual
Priority to AT95106858T priority Critical patent/ATE221216T1/de
Priority to DE59510296T priority patent/DE59510296D1/de
Priority to EP95106858A priority patent/EP0741328B1/fr
Priority to AU52014/96A priority patent/AU710529B2/en
Priority to US08/641,829 priority patent/US5713102A/en
Publication of EP0741328A1 publication Critical patent/EP0741328A1/fr
Application granted granted Critical
Publication of EP0741328B1 publication Critical patent/EP0741328B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03D—APPARATUS FOR PROCESSING EXPOSED PHOTOGRAPHIC MATERIALS; ACCESSORIES THEREFOR
    • G03D15/00—Apparatus for treating processed material

Definitions

  • the invention relates to a film cleaning device according to the Preamble of claim 1.
  • a film cleaning device is known from the German utility model DE-9 319 373 U known.
  • the film first pull through an immersion bath in order to remove a large part of the adhesive To remove dirt.
  • the film is then dried using warm air and then subjected to electrostatic cleaning, in which the loose due to Discharge and brush off dust particles adhering to electrostatic charge become.
  • electrostatic dry cleaning Dry cleaning step using adhesive rollers, which with their adhesive surfaces remove the remaining dust and dirt particles from the film surface.
  • the object of the invention is to provide a film cleaning device to improve the type mentioned at the outset in that at a satisfactory Cleaning effect ensures a safe winding of the cleaned film is.
  • Fig. Lin a schematic side view Film cleaning device for an exposed film 1, in particular cinema film, has a closed housing 20 with a mounting plate 3, which is parallel to the drawing plane in the vertical direction. Are on the mounting plate 3 fixes the device components housed in the housing 20.
  • an unwinding roll 10 freely rotatable, which is provided with a roller brake, not shown, thus the film roll 12 applied to the roll 10 with a defined tensile force must be handled.
  • This traction is, as explained in more detail to be by the drive motor 71 of a capstan roller 70 and the drive motor 61 a winding roller 60 applied together.
  • the take-up roll 60 is arranged vertically above the unwinding roll 10, which has the advantage that the Cleaning device in addition to rewinding the film 1 (which in this mode is designated 1 ') can be used.
  • the one provided for rewinding Filmbahn is shown in Fig. 1 with a dashed line.
  • the film is in a film guide level that corresponds to the drawing level 1 coincides from the unwinding roller 10 via a deflection roller 2 led vertically upwards to a first dry cleaning station 30, which as Ionization device is formed.
  • the ionizer includes two, one rod-shaped discharge devices arranged opposite film surfaces 31, 32, which is electrically powered by a common high-voltage power supply become.
  • the ions sprayed on by the discharge devices 31, 32 neutralize the electrical charges present on the film surfaces.
  • the thus discharged dust and dirt particles on the film surfaces are at the Further transport of the film 1 with the help of soft hairbrushes 33, 34, which are against the two film surfaces are directed, brushed off.
  • the film 1 After passing through the first dry cleaning station 30, the film 1 by means of two further deflection rollers 5, 6 by about 180 ° in its running direction vice versa and fed to a second dry cleaning station 40. Between Deflection rollers 5, 6 are in constant contact with the film 1 standing limit switch 7, which detects a film tear and a corresponding Sensor signal supplies the drive motors 61 and 71. The drive motors 61 and 71 are stopped immediately upon detection of a film tear, so that the Film transport through the capstan roll 70 and the take-up roll 60 is stopped.
  • the second dry cleaning station 40 consists in the example shown two, each on a film surface attacking adhesive rollers 41, 42. Die von Adhesive layer to be replaced from time to time on the surfaces of the adhesive rollers 41, 42 removes residual dust and dirt particles from two film surfaces. Instead of adhesive rolls, rolls with dielectric Surface material can be used, which by electrostatic Charge the remaining dust and dirt particles from both film surfaces remove.
  • the film 1 bypassing the adhesive rollers 41, 42 via a shunt roller 4 directly to one another deflection roller 51, which is in the film path behind the second adhesive roller 42 is arranged.
  • the deflection roller 51 forms together with another Deflection roller 52 a pair of wrapping rollers 50. Behind the roller 51 and in front of the Roll 52, the capstan roll 70 is arranged.
  • the pair of wrapping rollers 50 provides on the one hand for the film 1 to have a circumferential angle of more than 180 ° abuts the friction surface of the capstan roller 70.
  • the film 1 is through the wrap effect of all three rollers 51, 70 and 52 tense, which the Slip between film 1 and the friction surface of capstan roller 70 is minimized becomes.
  • the film 1 becomes the Winding roll 60 fed as film roll 65.
  • the Film roll 65 by a pressure roller 62 in the radial direction with a Pressure force applied.
  • the pressure roller 62 is free on a swivel arm 63 rotatably mounted, which if necessary under a pivot axis 64 Preload force of a spring, not shown, is pivotable.
  • the speed of the drive motor 61 is controlled by a controller (not shown) regulated in such a way that the tensile force exerted by the drive roller 60 on the film 1 is exercised evenly over the entire diameter of the film roll 65 and remains constant. Without such a traction control would increase Diameter of the film roll 65 increase the tensile force accordingly, which is synonymous would increase with the risk of a film tear. With the too cleaning films 1 are often very old and therefore appropriate dirty films where due to the aging of the footage and numerous Glue points greatly reduced the original elasticity and tensile strength is. In particular, these old films can be made with the help of the invention Clean the film cleaning device without the risk of film tears.

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Cleaning In General (AREA)
  • Registering, Tensioning, Guiding Webs, And Rollers Therefor (AREA)
  • Detergent Compositions (AREA)
  • Cleaning Or Drying Semiconductors (AREA)
  • Electrical Discharge Machining, Electrochemical Machining, And Combined Machining (AREA)

Claims (6)

  1. Dispositif pour nettoyer des films (1) exposés, comprenant
    un premier poste de nettoyage à sec (30) sous la forme d'un appareil d'ionisation, qui présente un dispositif de décharge (31, 32) électrostatique et des moyens (33, 34) pour enlever des particules de poussière déchargées,
    éventuellement un deuxième poste de nettoyage à sec (40), qui enlève des particules de salissure et de poussière par adhésion ou attraction électrostatique des deux surfaces de film,
    un galet cabestan (70) pour retirer le film (1) d'un galet de déroulement (10) dans le (les) poste(s) de nettoyage à sec, et
    un galet d'enroulement de film (60) disposé en aval du galet cabestan (70) avec un moteur d'entraínement (61),
       caractérisé en ce qu'il est prévu une commande pour le moteur d'entraínement (61), qui régule la force de traction exercée par le galet d'entraínement (60) sur le film (1) de telle façon que la force de traction reste uniforme et constante pour l'ensemble du diamètre du galet d'enroulement de film (60) et que des galets inverseurs (51, 52) sont disposés juste avant et après le galet cabestan (70) et sont prévus pour un enroulement du film (1) autour d'une partie importante de la surface du galet cabestan (70).
  2. Dispositif selon la revendication 1, caractérisé en ce qu'un dispositif de fin de course (7) est disposé dans le couloir de projection juste avant le deuxième poste de nettoyage à sec (40), lequel détecte une déchirure de film et agit sur les moteurs d'entraínement (61, 71) du galet d'enroulement de film (60) et du galet cabestan (70).
  3. Dispositif selon la revendication 1 ou 2, caractérisé en ce qu'entre le deuxième poste de nettoyage de film (40) et le galet cabestan (70) est disposé un galet shunt (4), au moyen duquel le film (1) peut être guidé en évitant le deuxième poste de nettoyage à sec (40).
  4. Dispositif selon l'une des revendications 1 à 3, caractérisé en ce que le galet d'enroulement de film (10) et le galet de déroulement (60) sont disposés dans un plan commun, le film (1') pouvant être déroulé directement entre les deux galets (10, 60) en évitant les postes de nettoyage à sec (30, 40).
  5. Dispositif selon l'une des revendications 1 à 3, caractérisé en ce qu'un dispositif d'aspiration (90) avec un filtre à poussière (80) placé en amont pour les particules de salissure et de poussière enlevées par brossage dans le premier poste de nettoyage à sec (30) est disposé à l'intérieur du boítier (20).
  6. Dispositif selon la revendication 5, caractérisé en ce que le degré d'encrassement du filtre à poussière (60) est détecté et affiché par un capteur (100).
EP95106858A 1995-05-05 1995-05-05 Dispositif pour le nettoyage de films exposés Expired - Lifetime EP0741328B1 (fr)

Priority Applications (5)

Application Number Priority Date Filing Date Title
AT95106858T ATE221216T1 (de) 1995-05-05 1995-05-05 Vorrichtung zum reinigen von belichteten filmen
DE59510296T DE59510296D1 (de) 1995-05-05 1995-05-05 Vorrichtung zum Reinigen von belichteten Filmen
EP95106858A EP0741328B1 (fr) 1995-05-05 1995-05-05 Dispositif pour le nettoyage de films exposés
AU52014/96A AU710529B2 (en) 1995-05-05 1996-05-01 Apparatus for dry cleaning exposed films
US08/641,829 US5713102A (en) 1995-05-05 1996-05-02 Apparatus for dry cleaning exposed films

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP95106858A EP0741328B1 (fr) 1995-05-05 1995-05-05 Dispositif pour le nettoyage de films exposés

Publications (2)

Publication Number Publication Date
EP0741328A1 EP0741328A1 (fr) 1996-11-06
EP0741328B1 true EP0741328B1 (fr) 2002-07-24

Family

ID=8219230

Family Applications (1)

Application Number Title Priority Date Filing Date
EP95106858A Expired - Lifetime EP0741328B1 (fr) 1995-05-05 1995-05-05 Dispositif pour le nettoyage de films exposés

Country Status (5)

Country Link
US (1) US5713102A (fr)
EP (1) EP0741328B1 (fr)
AT (1) ATE221216T1 (fr)
AU (1) AU710529B2 (fr)
DE (1) DE59510296D1 (fr)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6678913B1 (en) 2000-09-01 2004-01-20 San Lab Systems Apparatus and method for cleaning film
CN103111442B (zh) * 2013-02-27 2015-04-29 江苏华兰药用新材料股份有限公司 洗膜机
CN106984567A (zh) * 2017-03-29 2017-07-28 浙江凯阳新材料股份有限公司 一种薄膜生产用除尘装置

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2956300A (en) * 1956-09-17 1960-10-18 Oxy Dry Sprayer Corp Web tensioning and cleaning apparatus
NL299320A (fr) * 1962-10-22
US3531201A (en) * 1968-04-11 1970-09-29 Hycon Mfg Co Preprocessor
JPS5322415A (en) * 1976-08-13 1978-03-01 Canon Inc Motor con trol device for camera able to record sound simultaneously
US4244078A (en) * 1979-04-26 1981-01-13 Research Technology, Inc. Method and apparatus for cleaning film
US4454621A (en) * 1982-01-15 1984-06-19 Static Inc. Sheet and web cleaner
US4656530A (en) * 1985-11-25 1987-04-07 American Multimedia, Inc. Method and apparatus for servo-control of tape tension in high speed tape transporter
US5349713A (en) * 1992-11-25 1994-09-27 Jerome P. Stimpfl Magnetic tape cleaning system
DE9319373U1 (de) * 1993-12-16 1994-08-11 Schmitzer, Andreas, 93309 Kelheim Vorrichtung zum Reinigen von belichteten Filmen

Also Published As

Publication number Publication date
DE59510296D1 (de) 2002-08-29
AU5201496A (en) 1996-11-14
EP0741328A1 (fr) 1996-11-06
AU710529B2 (en) 1999-09-23
ATE221216T1 (de) 2002-08-15
US5713102A (en) 1998-02-03

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