EP0484739B1 - Einsatz für Durchlauf-Entwicklungsgeräte - Google Patents

Einsatz für Durchlauf-Entwicklungsgeräte Download PDF

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Publication number
EP0484739B1
EP0484739B1 EP91118037A EP91118037A EP0484739B1 EP 0484739 B1 EP0484739 B1 EP 0484739B1 EP 91118037 A EP91118037 A EP 91118037A EP 91118037 A EP91118037 A EP 91118037A EP 0484739 B1 EP0484739 B1 EP 0484739B1
Authority
EP
European Patent Office
Prior art keywords
conveyor belt
squeeze
roll
rolls
station
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
EP91118037A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0484739A2 (de
EP0484739A3 (en
Inventor
Ernst-Adolf Sitte
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
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Filing date
Publication date
Application filed by Individual filed Critical Individual
Publication of EP0484739A2 publication Critical patent/EP0484739A2/de
Publication of EP0484739A3 publication Critical patent/EP0484739A3/de
Application granted granted Critical
Publication of EP0484739B1 publication Critical patent/EP0484739B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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    • 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
    • G03D15/02—Drying; Glazing
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03D—APPARATUS FOR PROCESSING EXPOSED PHOTOGRAPHIC MATERIALS; ACCESSORIES THEREFOR
    • G03D3/00—Liquid processing apparatus involving immersion; Washing apparatus involving immersion
    • G03D3/08—Liquid processing apparatus involving immersion; Washing apparatus involving immersion having progressive mechanical movement of exposed material
    • G03D3/12—Liquid processing apparatus involving immersion; Washing apparatus involving immersion having progressive mechanical movement of exposed material for plates, films or prints spread onto belt conveyors

Definitions

  • the invention relates to an insert for continuous processing devices according to the preamble of patent claim 1.
  • An insert of this type is used for developing films or generally photographic materials. It is customary to convey the photographic material successively through several individual tanks in which different liquid chemicals are located. For complete development, the photographic material must therefore be transferred from a single tank to the subsequent single tank and conveyed.
  • the film material is in its full width at the exit from a single tank squeezed or squeezed out, which may otherwise be film material of different widths.
  • the rollers arranged in pairs on the output side of the insert form a squeezing station in that the roller below acts as a squeeze roller.
  • a device for developing photographic supports with a wet part having different treatment baths and an adjoining drying part is known, a squeeze roller pair having rollers arranged essentially one above the other being provided between the wet part and the drying part .
  • the lower roller of the pair of squeezing rollers is driven and has a forward speed in relation to the transport speed in the wet part, and the upper roller lies on the layer side of the substrate as a weight roller.
  • the known device therefore has a squeezing station, the lower roller of which has a pile covering on its outer surface and the weight roller is designed as a smooth roller.
  • the rollers which are also provided in the drying part of the device do not form a squeezing station, but are only provided for drying the layer support.
  • the invention has for its object to improve the use of the type described in the preamble of claim 1 so that an optimal development of the film material is possible, and that when the film material enters from a single tank into the next Single tank no liquid chemicals from the previous single tank can get into the next tank.
  • the film material should be optimally prepared so that it can absorb the other liquid chemical present there when entering the next individual tank.
  • the invention is based on the consideration that, in the known application according to document DE-A 26 09 463, it is not possible to achieve optimal and effective squeezing of the film material with one squeezing station. This is because one of the rollers of the known squeezing station must be designed as a transport roller in order to move and transport the endless conveyor belt. So that the conveyor belt can be moved, however, the surface of at least one roller of the squeezing station must be formed with a rough surface. In contrast, it would be better for squeezing the surfaces of the rollers of the squeezing station in order to clean the film material satisfactorily from the chemical of the assigned individual tank and to achieve an optimal squeezing.
  • a second squeezing station in addition to the first squeezing station, a second squeezing station is provided, which consists of two squeezing rollers.
  • the advantage of the invention is that in the squeeze rollers of the second squeeze station, the surfaces of the squeeze rollers can be designed as desired and no consideration must be given to the conveyance of the endless conveyor belt, because this conveyance is still carried out by the first squeeze station.
  • the two squeeze rollers of the second squeeze station with a smooth surface or to optionally provide the squeeze rollers with an absorbent surface.
  • a combination is possible, for example, by providing a squeeze roller with a smooth surface and the other squeeze roller with an absorbent surface.
  • the second squeezing station provided in the invention with the two squeezing rollers, the surfaces of which can be either smooth and / or absorbent, it is achieved that the emulsion, which is on the support of the film material, is compressed like a sponge and thus by the liquid chemical is exempted.
  • the film material After passing the second squeezing station, the film material is therefore in a state in which it can hold the liquid chemical of the next tank without a liquid chemical from the previous single tank having got into the next single tank.
  • the second squeezing station comprises a second stationary lower squeeze roller and a second upper squeeze roller, the upper squeeze roller being freely movable in the vertical direction in an elongated hole and pressing with its own weight against the lower squeeze roller.
  • the pressure of the upper second squeeze roller on the lower squeeze roller can be determined by the weight of the upper squeeze roller.
  • the upper second squeeze roller in vertical direction is freely movable and can move upwards against its own weight.
  • movable and rotatable floating rollers are provided along the path of the conveyor belt within the insert or the individual tank, which are freely movable obliquely to the direction of transport of the conveyor belt.
  • This measure has the advantage that the rotatable floating rollers exert a certain pressure against the conveyor belt or against the photographic material (film material) due to the buoyancy force acting on them, which is caused by the chemical liquid in the individual tank.
  • the floating rollers can be stored in oblique oblong holes that run too obliquely from bottom to top in the direction of the conveyor belt.
  • the floating rollers move in the direction specified by the elongated holes, i. that is, they perform an oblique motion that includes a horizontal and vertical motion component.
  • the horizontal movement component is responsible for the pressure against the photo material.
  • the guidance of the film material through the individual tank is advantageously improved by pressing the photographic material against the conveyor belt. This counteracts the risk that if the photographic material is not transported safely, it can remain in the individual tank.
  • the swimming rollers are themselves without drive. However, they rotate by themselves due to the fact that they abut the photographic material or the conveyor belt with a certain pressure.
  • a deflection belt is additionally provided, which presses the photographic material against the conveyor belt and is driven by at least one drive roller.
  • the deflection belt is deflected by a lower weight roller that is freely movable in the vertical direction, whereby the deflection belt is tensioned and kept taut by the weight of the weight roller.
  • the freely movable lower weight roller automatically tensions the deflection belt based on its own weight. This also ensures that in such cases, if thicker photographic material is used, the print can be adjusted automatically.
  • an upper, freely movable in the vertical direction weight roller is provided, which presses with its own weight against the conveyor belt.
  • the conveyor belt is automatically tensioned and held tight. This is achieved in that the weight roller is freely movable in the vertical direction and can thus adapt its position to the prevailing conditions and the tension of the conveyor belt. If this automatically keeps the conveyor belt taut, this has the effect of ensuring that the photographic material is guided securely through the individual tank.
  • the insert designated as a whole in FIG. 1 with the reference number 10 comprises two side walls 12, between which the various rollers described in more detail below with reference to FIG. 2 extend. These rollers are mounted in openings and elongated holes, which are also described in more detail below with reference to FIG. 3.
  • the insert 10 is otherwise in itself known manner introduced into a single tank, not shown, which is filled with a chemical liquid, the liquid level 50 is shown in Fig. 2.
  • the insert 10 comprises, as shown in FIG. 2, an endless conveyor belt 22 with associated conveyor rollers 14, 16, 18 and 20. At least one of these conveyor rollers is provided with a drive in order to set the endless conveyor belt 22 in motion.
  • the arrow A in FIG. 2 indicates the input side, on which the photographic material to be processed, seen from the left, is inserted between the two transport rollers 14 and 16 and then guided by means of the conveyor belt 22 through the individual tank to the output side indicated by the arrow B. becomes.
  • the upper squeeze roller 26 is in the vertical direction freely movable in an elongated hole 13 which is arranged in the side wall 12. 2, the upper squeeze roller 26 is shown at a distance from the lower squeeze roller 28. In fact, however, due to its free movement, the upper squeeze roller 26 lies with its own weight on the film material, not shown, which is guided between the two squeeze rollers 26 and 28 on the exit side B to the next individual tank.
  • This upper weight roller 32 is freely movable in the vertical direction in an elongated hole 34 of the side wall 12.
  • a deflection belt 40 which is driven by drive rollers 38 and is deflected by a deflection roller 42 and a lower weight roller 44.
  • the deflection belt 40 is expediently driven at the same speed at which the conveyor belt 22 is also driven.
  • the deflection belt 40 presses up to the height of the drive roller 38 against the conveyor belt 22 or against the photographic material located therebetween, as a result of which reliable guidance is achieved in the region of the deflection of the photographic material or the conveyor belt 22.
  • the lower weight roller 24 is freely movable in the vertical direction in an elongated hole 46, which is located in the side walls 12. Due to its own weight, the weight roller 44 exerts a downward force on the deflection belt 40, which is thereby automatically tensioned and held tight.
  • displacement rollers 48 are provided in the center, which are mounted between the downward and upward parts of the conveyor belt.
  • the insert 10 also includes a plurality of floating rollers 36 which, as shown in FIG. 3, are mounted in oblique oblong holes in the side walls 12. Both on the area leading downward and on the area leading upward of the conveyor belt several floating rollers are arranged in a row. As the liquid level 50 shows, the floating rollers are below this level, that is to say in the chemical liquid of the associated individual tank. The chemical liquid causes a buoyancy force of the floating rollers 36 with the result that they press against the film material guided by the conveyor belt 22 with a certain pressure.
  • the elongated holes 56 receiving the floating rollers 36 run in an oblique direction from bottom to top, namely in the direction of the conveyor belt. This direction is indicated in FIG. 3 by arrow C for the left row of elongated holes 56 and by arrow D for the right row of elongated holes 58.
  • the floating rollers follow the oblique directions C and D, pressing with a horizontal component against the conveyor belt 22 or the photographic material guided by this conveyor belt.
  • the pressure required in each case can be predetermined by the weight of the floating rollers 36.
  • the illustration in Fig. 3 also the bores 52, in which the transport rollers 14, 16, 18 and 20 are mounted, and the bore 44 for the lower squeeze roller 28.
  • the bore 60 for the deflection roller 24 in which the transport rollers 14, 16, 18 and 20 are mounted, and the bore 44 for the lower squeeze roller 28.
  • the bore 60 for the deflection roller 24 in which the bores 62 for the mounting of the drive rollers 38 of the lower deflection belt 40 and the bore 64 for the deflection roller 42.
  • the elongated hole 46 for the lower weight roller 44 which is freely movable in the vertical direction, can also be seen.

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Photographic Processing Devices Using Wet Methods (AREA)
  • Coating Apparatus (AREA)
  • Spray Control Apparatus (AREA)
EP91118037A 1990-11-05 1991-10-23 Einsatz für Durchlauf-Entwicklungsgeräte Expired - Lifetime EP0484739B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2300910A JPH04170542A (ja) 1990-11-05 1990-11-05 連続現像装置用浸漬具
JP300910/90 1990-11-05

Publications (3)

Publication Number Publication Date
EP0484739A2 EP0484739A2 (de) 1992-05-13
EP0484739A3 EP0484739A3 (en) 1993-01-20
EP0484739B1 true EP0484739B1 (de) 1997-05-28

Family

ID=17890602

Family Applications (1)

Application Number Title Priority Date Filing Date
EP91118037A Expired - Lifetime EP0484739B1 (de) 1990-11-05 1991-10-23 Einsatz für Durchlauf-Entwicklungsgeräte

Country Status (5)

Country Link
US (1) US5281989A (es)
EP (1) EP0484739B1 (es)
JP (1) JPH04170542A (es)
DE (1) DE59108721D1 (es)
ES (1) ES2104643T3 (es)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5506653A (en) * 1993-04-14 1996-04-09 Spillane; John D. 58 second color print processor
JPH08339071A (ja) * 1995-04-12 1996-12-24 Noritsu Koki Co Ltd 写真感光材料の搬送装置
US6217238B1 (en) * 1999-02-17 2001-04-17 Phototrader, Inc. Photographic film processor and method of developing film

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4140384A (en) * 1974-07-11 1979-02-20 Dainippon Screen Seizo Kabushiki Kaisha Film conveyor
JPS5128034A (ja) * 1974-08-30 1976-03-09 Tomasu Supedeingu Oribaa Gorufuaakunrenyosochi
JPS5233864U (es) * 1975-08-30 1977-03-10
DE2548755C2 (de) * 1975-10-31 1984-05-24 Autopan Heimerdinger & Stäbler GmbH & Co, 7022 Leinfelden -Echterdingen Fördereinrichtung für eine Vorrichtung zum Naßbehandeln von fotografischem Entwicklungsgut
DE2609463C3 (de) * 1976-03-08 1981-02-19 Ernst-Adolf 3250 Hameln Sitte Einsatz für Durchlauf-Entwicklungs-
JPS5377523A (en) * 1976-12-20 1978-07-10 Tokyo Shiyutsupan Insatsu Kenk Automatic developer on automatic photo printer
GB1579766A (en) * 1977-05-30 1980-11-26 Dainippon Screen Mfg Film processing apparatus incorporating squeegee means
US4174901A (en) * 1977-06-03 1979-11-20 Dainippon Screen Seizo Kabushiki Kaisha Film squeegee mechanism of automatic film developing apparatus
IL56538A (en) * 1978-02-07 1981-05-20 Grant Sidney Apparatus for processing sheet material in a liquid bath
DE2951847A1 (de) * 1979-12-21 1981-07-02 Agfa-Gevaert Ag, 5090 Leverkusen Vorrichtung zum entwickeln von fotografischen schichttraegern
JPS6242821A (ja) * 1985-08-21 1987-02-24 Toyoda Gosei Co Ltd ゴム押出し成形品の製造方法

Also Published As

Publication number Publication date
US5281989A (en) 1994-01-25
EP0484739A2 (de) 1992-05-13
DE59108721D1 (de) 1997-07-03
ES2104643T3 (es) 1997-10-16
JPH04170542A (ja) 1992-06-18
EP0484739A3 (en) 1993-01-20

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