EP0360968B1 - Vorrichtung zum Entwickeln von auf einer Fotopapierbahn belichteten Papierbildern - Google Patents
Vorrichtung zum Entwickeln von auf einer Fotopapierbahn belichteten Papierbildern Download PDFInfo
- Publication number
- EP0360968B1 EP0360968B1 EP89107118A EP89107118A EP0360968B1 EP 0360968 B1 EP0360968 B1 EP 0360968B1 EP 89107118 A EP89107118 A EP 89107118A EP 89107118 A EP89107118 A EP 89107118A EP 0360968 B1 EP0360968 B1 EP 0360968B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- deflection rollers
- developing
- photographic paper
- speed
- drive unit
- 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
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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
- 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
- G03D3/13—Liquid processing apparatus involving immersion; Washing apparatus involving immersion having progressive mechanical movement of exposed material for long films or prints in the shape of strips, e.g. fed by roller assembly
- G03D3/135—Liquid processing apparatus involving immersion; Washing apparatus involving immersion having progressive mechanical movement of exposed material for long films or prints in the shape of strips, e.g. fed by roller assembly fed between chains or belts, or with a leading strip
- G03D3/137—Liquid processing apparatus involving immersion; Washing apparatus involving immersion having progressive mechanical movement of exposed material for long films or prints in the shape of strips, e.g. fed by roller assembly fed between chains or belts, or with a leading strip provided with transport speed regulation
Definitions
- the invention relates to a device for developing paper images, which is continuously traversed by the photo paper web to be developed.
- each of the paper images exposed on the photo paper web to be developed must have a certain, constant dwell time, for example 45 seconds.
- the developing device and the developing process are involved in the entire manufacturing and processing process, especially in the case of a more industrial production of photo paper images in large companies in the photo production industry.
- this includes processing the negatives, exposing the photo paper webs and cutting the finished paper photos to their packaging.
- the exposure device for exposing the photographic paper is the most expensive device in the entire work process, which could be driven at a very high work rate on its own, but would have to be throttled constantly because of the subsequent development process if the work was connected. This would not occupy this expensive machine.
- the work performed by the work stations preceding and following the development process changes from time to time.
- the exposure device printer
- the throughput speed in the printer has to be changed.
- the photo paper web to be exposed can be transported per exposure process only by the format length of a paper image, i.e. per exposure process by a shorter distance than before.
- the duration of an exposure process usually remains constant. This has the consequence that the transport speed of the photo paper web has to decrease with a smaller format of the photo paper images. This also changes the workload of this workstation.
- the invention is therefore based on the object of improving the development process in such a way that it fits more profitably into the paper photo production and processing process (finishing).
- the entire work process is advantageously no longer dictated by the development process as in the past, but in the process according to the invention, the speed of the development process is based on the other work stations, so that they are better utilized and thus a higher work rate and profitability are achieved .
- the exposure device and the developing device were connected to one another, but this connection only took place via an intermediate store.
- the exposure device had to adapt to the operating speed of the developing device in an unprofitable manner by filling the memory only to the extent that the developing device could empty it.
- the entire work process had to be brought to a complete standstill temporarily in order to be able to adapt to the new conditions.
- Document DE-A-36 23 084 describes an automatic photo development system in which storage units with continuously variable capacities are arranged between the different process devices, which allow the photo paper tape to be processed continuously despite the different speeds of the processes.
- the development speed of the developing device can depend on the other workstations, so that it is now also advantageously possible to directly connect the exposure device and the developing device, in which the exposure device, when fully utilized, determines the working speed. Only with the device according to the invention does the development process smoothly adapt to the changed speed requirement.
- the development device can also be linked directly to subsequent work stations.
- a certain constant residence time for example 45 seconds, must still be available for each of the paper images exposed on the photo paper web to be developed. This is ensured as long as the transport speed of the photo paper web through the developing device is constant, since the path of the photo paper web through the developing device is also constant and the desired dwell time is adjusted according to the simple formula of the running distance divided by the speed.
- the photo paper web to be exposed is deflected and guided in a meandering manner via deflection rollers. Meandering in order to achieve a sufficiently large throughput path for relatively high transport speeds with the smallest possible space requirement.
- Some of these deflection rollers are detachably arranged in conventional development machines. These deflection rollers can thus be used to change the throughput path into very specific, predetermined ones Positions are implemented.
- these convertible deflection rollers are mounted on plug-in strips on which the deflection rollers can be repositioned and re-screwed.
- a change in the speeds of upstream or downstream workstations is also easily absorbed in the method according to the invention.
- Document SU-A-593 181 describes an automatic imperforate film developing device in which the length of a single loop immersed in the developer is controlled by a sensor so that the duration of the development remains constant even if it changes the entry speed of the film changes.
- the throughput path can be changed by locally changing a plurality of deflection points for the photo paper web in the developing device, by means of which the throughput path is specified, such that the length of the section of the phototapered paper web which they steer and is in the developing device is proportional to the changed transport speed is also changed.
- deflection rollers or the like are continuously changed in their arrangement until the throughput is again adapted to the changed transport speed of the photo paper web, so that the dwell time for the individual exposed paper image in the developing device remains constant.
- the throughput path can be changed slowly up to the proportional value to be achieved. This also ensures that the tension of the paper web does not change too quickly, so that paper tear or paper sagging is avoided.
- the passage is preferably changed automatically by means of suitable control devices, so that workloads are relieved and an optimal adaptation of the passage is achieved.
- the device according to the invention advantageously has displaceably arranged deflection rollers, which can therefore be continuously changed in position, this change in position being able to be carried out with a drive unit, which makes work easier and also has the advantage that the development device does not need to be opened to change the path of travel .
- the adjustment of the throughput path is advantageously carried out automatically, specifically by means of a registration device registering a speed parameter, preferably an input speed parameter, for actuating and actuating the control drive unit in accordance with the registered parameter. It is preferably provided that the output drive unit can also be controlled by the registration device, in particular so that the correct paper tension of the photo paper web is established.
- the registration device registers speed parameters of both drive units and then controls and actuates the control drive unit if there is a speed difference between the two drive units.
- a change in speed is predetermined by the printer connected upstream, when the device according to the invention is used, so that the input speed of the photo paper in the developing device changes accordingly, while the output speed is initially maintained until the deflection rollers have moved to the final position.
- a speed difference can thus be used as a suitable speed parameter for controlling the control drive unit be considered.
- the displaceable deflection rollers can be displaced continuously, preferably on a sliding guide. This has the advantage that the throughput path can also be precisely adapted to slight changes in speed. It would also be conceivable not to move continuously, for example on grid rails or the like.
- drives known per se such as e.g. can be used with chains, spindles or the like.
- a plurality of deflection rollers of the same height level can be moved and are coupled to one another in terms of drive.
- the drive coupling improves controllability and allows a single drive unit to suffice.
- a next development of the invention, for which independent protection is also claimed, is characterized in that the deflecting rollers are arranged in only two height levels, that all deflecting rollers of one of the height levels are coupled with one another and that a displacement of these rollers extends beyond the other height level the other pulleys is possible.
- the deflecting rollers are arranged in two groups, between which the photo paper web runs back and forth in meandering fashion, and that by changing the distance between these two roller groups to one another, the path of travel of the photo paper web is very clean and precise with the greatest possible scope for change can be changed.
- this design has the advantage that when the developing device is started up anew, in front of which an initial section of a new photo paper web is first inserted, this insertion can take place while the displaceable rollers are pushed beyond the height level of the other rollers, so that the initial section between them Rolls can be shot through and when the movable deflection rollers are returned to their original level, a meandering course automatically results over the deflection rollers of the photo paper web.
- the development device can thus be restarted with very little loss of time, for example after maintenance.
- This displacement of the displaceable deflection rollers beyond the height level of the other deflection rollers is particularly simple in a development of the invention, which is characterized in that the deflection rollers of a height level are mechanically connected to each other to form a comb-like roller unit and that the two roller units, if provided to the same height level moved, comb together.
- the displaceable deflection rollers are preferably those which belong to the lower level.
- the paper images are exposed on a photo paper web 1, which runs in loops in a meandering manner over deflection rollers 2a, 2b through the developing device.
- the pulleys 2a, 2b are arranged in two groups at two height levels, the deflection rollers 2a forming the lower deflection roller group and the deflection rollers 2b forming the upper deflection roller group.
- the photo paper web 1 is transported by means of an input drive unit 3 and an output drive unit 4 through the developing device over the deflection rollers 2a, 2b.
- the pulleys of the lower pulley group and the upper pulley group are mechanically connected to each other to form roller units.
- the lower roller unit can be moved up and down along slide guides 5.
- a control drive unit 6 is provided which is drivingly coupled to the lower roller unit via chains 7.
- connecting elements 8 are provided.
- the control drive unit 6 is controlled and actuated by a registration device 9.
- This registration device 9 has sensors 10, which register the speed parameters of the input drive unit 3 and the output drive unit 4.
- the control drive unit 6 can be activated, for example, if the speed parameter of the input drive unit 3 changes or if a difference in the speed parameters of the input and output drive unit occurs.
- the slide guides 5 are so long that they protrude above the level of the upper guide rollers 2b, so that the lower guide rollers 2a can be raised to above the level of the upper guide rollers 2b.
- This uppermost position of the lower deflecting rollers 2a is indicated by dashed lines with the reference numbers 2a 'for some deflecting rollers 2a.
- an initial section can be between these and the upper guide rollers 2b a photo paper web 1 in a simple manner, namely to be shot through when the developing device is to be restarted, for example after maintenance.
- FIG. 2 shows a top view, partly in section, of the device according to FIG. 1.
- the same components are identified by the same reference numbers as in FIG. 1.
- roller unit 2 shows in particular the design of the two roller units with the deflection rollers 2a and 2b.
- the roller units are comb-like, so that the two roller units mesh with one another when they have reached the same level, and the lower roller unit can be raised above the level of the upper roller unit without mutual hindrance.
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Photographic Developing Apparatuses (AREA)
- Photographic Processing Devices Using Wet Methods (AREA)
- Inspection Of Paper Currency And Valuable Securities (AREA)
- Silver Salt Photography Or Processing Solution Therefor (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| AT89107118T ATE101288T1 (de) | 1988-09-30 | 1989-04-20 | Vorrichtung zum entwickeln von auf einer fotopapierbahn belichteten papierbildern. |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE3833216 | 1988-09-30 | ||
| DE3833216A DE3833216A1 (de) | 1988-09-30 | 1988-09-30 | Verfahren und vorrichtung zum entwickeln von auf einer fotopapierbahn belichteten papierbildern |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| EP0360968A2 EP0360968A2 (de) | 1990-04-04 |
| EP0360968A3 EP0360968A3 (en) | 1990-11-28 |
| EP0360968B1 true EP0360968B1 (de) | 1994-02-02 |
Family
ID=6364063
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP89107118A Expired - Lifetime EP0360968B1 (de) | 1988-09-30 | 1989-04-20 | Vorrichtung zum Entwickeln von auf einer Fotopapierbahn belichteten Papierbildern |
Country Status (6)
| Country | Link |
|---|---|
| EP (1) | EP0360968B1 (da) |
| AT (1) | ATE101288T1 (da) |
| DE (2) | DE3833216A1 (da) |
| DK (1) | DK482089A (da) |
| ES (1) | ES2048228T3 (da) |
| NO (1) | NO893878L (da) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| IT1260114B (it) * | 1992-12-14 | 1996-03-28 | Unita' d'adattamento dell'avanzamento di materiale fotografico per impianto di sviluppo continuo di materiale fotografico | |
| US6894102B2 (en) | 2002-05-20 | 2005-05-17 | General Electric | Syndiotactic polystyrene blends |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3623084A1 (de) * | 1985-07-16 | 1987-01-29 | Gregoris Photo Equip | Automatische fotoentwicklungsanlage |
Family Cites Families (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE863452C (de) * | 1951-04-04 | 1953-01-19 | Arnold & Richter Kg | Geraet zum Entwickeln von Filmen |
| US2998175A (en) * | 1956-07-05 | 1961-08-29 | Charles H Topping | Automatic developing system |
| US2928329A (en) * | 1956-11-09 | 1960-03-15 | David R Limbach | Photographic developing machine |
| DE1111940B (de) * | 1957-01-29 | 1961-07-27 | Arnold & Richter Kg | Filmtransport-Einrichtung |
| US3087405A (en) * | 1959-12-21 | 1963-04-30 | Sperry Rand Corp | Film processing apparatus |
| DE1497387B1 (de) * | 1966-02-16 | 1969-10-16 | Arnold & Richter Kg | Vorlauf-Magazin fuer Filmbearbeitungs-Maschinen |
| US3412668A (en) * | 1966-02-21 | 1968-11-26 | Chicago Aerial Ind Inc | Strip transport system |
| GB1307524A (en) * | 1969-03-21 | 1973-02-21 | Kodak Ltd | Web or strip material handling apparatus |
| SU593181A1 (ru) * | 1976-08-09 | 1978-02-28 | Предприятие П/Я Р-6947 | Устройство дл обработки рулонных фотоматериалов |
| US4215827A (en) * | 1979-06-25 | 1980-08-05 | Roberts Marvin A | Film loop apparatus |
| JPS5639542A (en) * | 1979-09-10 | 1981-04-15 | Dainippon Screen Mfg Co Ltd | Stationary developing method with automatic developing apparatus |
| DE3014784C2 (de) * | 1980-04-17 | 1984-12-06 | Staude, geb. Bartels, Eva, 6366 Wölfersheim | Vorrichtung zum Entwickeln von Mikrofilmen |
-
1988
- 1988-09-30 DE DE3833216A patent/DE3833216A1/de not_active Withdrawn
-
1989
- 1989-04-20 EP EP89107118A patent/EP0360968B1/de not_active Expired - Lifetime
- 1989-04-20 AT AT89107118T patent/ATE101288T1/de active
- 1989-04-20 ES ES89107118T patent/ES2048228T3/es not_active Expired - Lifetime
- 1989-04-20 DE DE89107118T patent/DE58906882D1/de not_active Expired - Lifetime
- 1989-09-29 DK DK482089A patent/DK482089A/da not_active Application Discontinuation
- 1989-09-29 NO NO89893878A patent/NO893878L/no unknown
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3623084A1 (de) * | 1985-07-16 | 1987-01-29 | Gregoris Photo Equip | Automatische fotoentwicklungsanlage |
Also Published As
| Publication number | Publication date |
|---|---|
| DK482089D0 (da) | 1989-09-29 |
| DK482089A (da) | 1990-03-31 |
| NO893878D0 (no) | 1989-09-29 |
| ES2048228T3 (es) | 1994-03-16 |
| NO893878L (no) | 1990-04-02 |
| EP0360968A3 (en) | 1990-11-28 |
| DE3833216A1 (de) | 1990-04-05 |
| DE58906882D1 (de) | 1994-03-17 |
| EP0360968A2 (de) | 1990-04-04 |
| ATE101288T1 (de) | 1994-02-15 |
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