EP1767480A2 - Dispositif de protection dans l'appareil de sortie des feuilles d'une machine de traitement de feuilles - Google Patents

Dispositif de protection dans l'appareil de sortie des feuilles d'une machine de traitement de feuilles Download PDF

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Publication number
EP1767480A2
EP1767480A2 EP06019463A EP06019463A EP1767480A2 EP 1767480 A2 EP1767480 A2 EP 1767480A2 EP 06019463 A EP06019463 A EP 06019463A EP 06019463 A EP06019463 A EP 06019463A EP 1767480 A2 EP1767480 A2 EP 1767480A2
Authority
EP
European Patent Office
Prior art keywords
sheet
sheet delivery
observation window
radiation
delivery according
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Withdrawn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
EP06019463A
Other languages
German (de)
English (en)
Other versions
EP1767480A3 (fr
Inventor
Rudolf Raab
Helmut Schild
Berthold Seib
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.)
Manroland AG
Original Assignee
Manroland AG
MAN Roland Druckmaschinen AG
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 Manroland AG, MAN Roland Druckmaschinen AG filed Critical Manroland AG
Publication of EP1767480A2 publication Critical patent/EP1767480A2/fr
Publication of EP1767480A3 publication Critical patent/EP1767480A3/fr
Withdrawn legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41F—PRINTING MACHINES OR PRESSES
    • B41F21/00—Devices for conveying sheets through printing apparatus or machines
    • B41F21/08—Combinations of endless conveyors and grippers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41F—PRINTING MACHINES OR PRESSES
    • B41F23/00—Devices for treating the surfaces of sheets, webs, or other articles in connection with printing
    • B41F23/04—Devices for treating the surfaces of sheets, webs, or other articles in connection with printing by heat drying, by cooling, by applying powders
    • B41F23/0403—Drying webs
    • B41F23/0406—Drying webs by radiation
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41F—PRINTING MACHINES OR PRESSES
    • B41F33/00—Indicating, counting, warning, control or safety devices
    • B41F33/0018—Protection means against injury to the operator
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H29/00—Delivering or advancing articles from machines; Advancing articles to or into piles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2407/00—Means not provided for in groups B65H2220/00 – B65H2406/00 specially adapted for particular purposes
    • B65H2407/10—Safety means, e.g. for preventing injuries or illegal operations
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2407/00—Means not provided for in groups B65H2220/00 – B65H2406/00 specially adapted for particular purposes
    • B65H2407/20—Means not provided for in groups B65H2220/00 – B65H2406/00 specially adapted for particular purposes for manual intervention of operator
    • B65H2407/22—Means not provided for in groups B65H2220/00 – B65H2406/00 specially adapted for particular purposes for manual intervention of operator means for observing the handled material during its handling
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2557/00—Means for control not provided for in groups B65H2551/00 - B65H2555/00
    • B65H2557/50—Use of particular electromagnetic waves, e.g. light, radiowaves or microwaves

Definitions

  • the invention relates to a protective device on the sheet delivery of a sheet-processing machine z. B., a sheet-fed or finishing machine according to the preamble of claim 1.
  • the invention is directed in particular to printing machines in which in the region of the sheet delivery, e.g. In the area of a so-called sheet exit facilities are still provided for sheet aftertreatment, especially for drying paint or varnish.
  • a boom is provided with a housing, through which a protection against the moving components is achieved.
  • the housing also largely prevents the spread of volatile constituents of the job applied to the printing substrate and the spread of powder possibly applied to the printing substrate.
  • window sections In order to allow a user to observe the process of sheet delivery in the sheet delivery without opening the enclosure, it is known to provide window sections on this enclosure, which as such release a view into the interior of the boom.
  • window sections can prove problematic, since their action is not shielded. In machine operation glare or flashes of light that are perceived by the operating staff as very unpleasant. This can even be assumed in the worst case of damage to the eyesight.
  • the invention is therefore based on the object to provide solutions that offer advantages in terms of reducing the potential exposure to radiation or flashes of light in a surrounding area of a sheet delivery person.
  • a housing in a sheet delivery for a sheet-processing machine, which as such surrounds the sheet conveying serving and a delivery room comprehensive boom inner area and shields from the environment.
  • at least one observation window is provided, which allows an insight into the encompassed by the housing boom inner region. If a radiator device serving for the arc treatment is provided in this boom inner region, radiation inevitably occurs in the region of the observation window. Therefore, the bow arm is characterized in that the observation window is arranged as a bulkhead means and the foreclosure about emitted by the radiator device to the observation window penetrating radiation at least to a physiologically sufficiently harmless level is used.
  • the observation window it is possible to avoid the penetration of strong or critical radiation, in particular UV radiation, or the effects of light by a special embodiment of the observation window itself.
  • a pane of so-called self-dimming glass or as a liquid crystal window it is possible to carry out in the observation window a pane of so-called self-dimming glass or as a liquid crystal window. It is also possible to provide the observation window with a UV filter.
  • the foreclosure of the radiation can be further controlled by means of a sensor in an advantageous manner.
  • the sensor can detect the radiation penetrating into the region of the observation window.
  • a control associated with the observation window can then control the dimming of the observation window in dependence on the detected brightness or radiation values.
  • the foreclosure can be timed so controlled in fast-shrinking window systems that this is sufficiently darkened in the emission-relevant periods. This activation can be effected as a function of the measured values of the sensor or else in a rhythm which depends on the position of the gripper systems with respect to the line of sight between the observation window and the radiator device.
  • the observation window is located in the jib-side front or forehead region and thus allows an insight into the gripper systems at the time of sheet release and possibly the stack top located below the sheet discharge area.
  • the observation window makes it possible to observe the release of the sheets conveyed by the gripper systems and their sinking.
  • This observation window may be part of a flap device.
  • the observation window can also form part of a duct wall which serves for air extraction.
  • Such bulkhead signs may be moved into the radiation area by appropriate synchronization or timing by detecting the position of the gripper systems or other indexing means circulating with the chain drive. The detection of the gripper systems can be done optically by a light barrier device or inductively or mechanically. Such bulkhead signs can already retain a large part of the introduced radiation.
  • Figure 1 shows a sheet delivery for a sheet processing machine having a housing 1 which, as such, surrounds a boom interior. Within the boom inner region extends a sheet conveying by means of held on a conveyor system 8 gripper systems 9 serving delivery chamber 7. The inner boom area is shielded by the housing 1 from the environment.
  • the housing 1 is provided with at least one observation window 2, which allows an insight into the encompassed by the housing 1 boom inner region.
  • at least one emitter device 3 serving for the sheet treatment is provided upstream of the region of the sheet deposit.
  • the boom inner region of the delivery chamber 7 is provided for the transport of printed sheets 6 held on an endless conveyor system 8.
  • the printed sheets 6 are gripper systems 9 to the radiator devices 3 passed through the delivery chamber 7 to a sheet stack 5 and thrown off there.
  • the observation window 2 is arranged in the sheet delivery arm shown here such that it extends in the boom-side front or end region and thus allows a view of the upper region of a sheet stack 5 or at least on the discharge area of the sheet 6 at.
  • the observation window 2 can be made of a transparent material, in particular glass or flexible plastic material.
  • the bulkhead means 4 is designed as a sheet-metal part equipped with a strongly absorbing surface facing at least the radiator device 3 and extends transversely to the sheet feed direction in the vicinity of the lower arcuate section of the boom interspersed by the lower chain trump of the conveyor system 8.
  • the actual bulkhead element is inventively integrated into the observation window 2 itself.
  • a pane 10 of so-called self-dimming glass is inserted into the field of view of the observation window 2 for this purpose.
  • the disk 10 is transparent in the ground state. It contains a layer of electrically controllable liquid crystals. These change depending on the control their orientation and thus change the light transmission of the disc 10th
  • a controller 12 which generates signals for adjusting the orientation of the liquid crystals in the disk 10.
  • the controller 12 has inputs from a machine controller of the sheet processing machine and from a sensor 11.
  • the signals can be generated as a function of measured values of a sensor 11.
  • the sensor 11 is attached to the housing 1 of the sheet delivery in the region of the observation window 2.
  • the sensor 11 detects radiation S coming from the radiation device 3 coming into the region of the observation window.
  • the sensor 11 is attached to the upper edge of the window in order to be able to detect radiation that penetrates as far as possible.
  • the sensor 11 can also be arranged in the region of the lower edge or at eye level of the operating personnel.
  • the radiation S passes through in different ways as far as the observation window 2.
  • part of the radiation S is already shaded before entry into the sheet delivery (dash-dotted lines).
  • Another part of the radiation is alternately shaded by the rotating gripper systems 9 or due to its orientation does not reach the area of the observation window 2 (see double lines).
  • the disk 10 can now be changed in its permeability to the incident radiation by influencing the control 12 with the aid of the sensor 11.
  • the influencing can initially take place in such a way that, depending on the irradiation intensity, a mean darkening on the window 10 is adjustable as a function of the power of the radiation device 3. In principle, it must be ensured that the visibility of the storage area B in the sheet delivery for operator guidance must be ensured. It can also be assumed that the radiation device 3 can be set differently depending on the type of print job in the characteristic of its action on the printed sheets 6.
  • the reflection property of the printed sheet 6 for forwarding the light of the radiation device 3 can be taken into account.
  • the setting of the radiation device 3 can be adjusted depending on the speed of the sheet-processing machine. It should be noted that the flashes of light last longer with a slow-moving machine than with a fast-running machine. It is therefore in the adjustment of the permeability of the self-dimming disc 10 on the one hand to a change in the radiation intensity at faster running machine and at the same time on the thereby occurring shortening of the passing light flashes of the radiation device 3 ago. An average value will therefore have to be based primarily on the operator-related visibility for the staff.
  • the adjustment of the transmittance of the self-dimming disc 10 can also be made dependent on determined radiation maxima with respect to dedicated machine positions. In this case, with regard to an angular position of the machine, a certain amount of radiation is expected on the observation window 2 and the self-dimming glass 10 is adjusted correspondingly more or less permeable.
  • the transmittance can be changed at each machine revolution for intercepting individual or bundles of flashes of light, as well as gradually depending on speed changes. For example, the transmittance can be increased because of the shortening of the flashes of light.
  • observation window 2 can also be shaded differently depending on the operating or radiation characteristics.
  • the darkening in the edge regions of the observation window 2 can be set more strongly than in the middle.
  • a stronger or weaker foreclosure can also be set in the upper or lower area of the observation window 2, so that the observability of the storage area B is ensured by an additional illumination provided in the sheet delivery arm.
  • the setting of the self-dimming disc 10 can also be carried out in a control loop, wherein the measured value of the sensor 11 can be used as a reference variable. It is also conceivable to attach the sensor 11 or another sensor to the outside of the observation window 2. Finally, the self-dimming glass 10 itself can be used as a light sensor and thus adjust to the incident light.
  • the regulation of the light transmittance of the glass 10 can then be performed depending on the amount of radiation or light impinging on the inside of the boom or on the amount of radiation or light passing through the observation window 2. This creates an automatic adaptation to the abovementioned operating states with regard to application characteristics, machine speed, type of substrate or operating parameters.
  • a self-dimming disc 10 also a coated, translucent material can be used.
  • the coating can influence both the light transmittance and its reflection.
  • the effect of the coating can in turn be adjustable.
  • a scarfing device controlled synchronously with the gripper systems 9 of the delivery arm is provided, whereby the phasewise existing light gap running through the delivery space of the gripper systems 9 is covered, so that, in particular, the light flashes which may be generated by the delivery systems under the UV emitter are concealed and there is no glare of the operator.
  • the Abschott raised can be performed as described either as a rocker, rotating roller or rotating transport device.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Health & Medical Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Toxicology (AREA)
  • Physical Or Chemical Processes And Apparatus (AREA)
  • Pile Receivers (AREA)
  • Infusion, Injection, And Reservoir Apparatuses (AREA)
EP06019463A 2005-09-23 2006-09-18 Dispositif de protection dans l'appareil de sortie des feuilles d'une machine de traitement de feuilles Withdrawn EP1767480A3 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE200520015011 DE202005015011U1 (de) 2005-09-23 2005-09-23 Schutzvorrichtung für den Auslagebereich einer bogenverarbeitenden Maschine, insbesondere Bogendruckmaschine

Publications (2)

Publication Number Publication Date
EP1767480A2 true EP1767480A2 (fr) 2007-03-28
EP1767480A3 EP1767480A3 (fr) 2010-08-04

Family

ID=35483712

Family Applications (1)

Application Number Title Priority Date Filing Date
EP06019463A Withdrawn EP1767480A3 (fr) 2005-09-23 2006-09-18 Dispositif de protection dans l'appareil de sortie des feuilles d'une machine de traitement de feuilles

Country Status (2)

Country Link
EP (1) EP1767480A3 (fr)
DE (1) DE202005015011U1 (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102006028855A1 (de) * 2006-06-23 2007-12-27 Koenig & Bauer Aktiengesellschaft Druckmaschine mit einer Sichtscheibe zum Schutz vor elektromagnetischer Strahlung
DE102008042394B4 (de) * 2008-09-26 2021-03-25 Koenig & Bauer Ag Vorrichtung zur Überwachung verarbeitungstechnischer Vorgänge in einer Bogen verarbeitenden Maschine, insbesondere einer Bogendruckmaschine

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE20201859U1 (de) * 2002-02-07 2002-08-08 Schneider, Armin, 65830 Kriftel Trocknereinrichtung für Druckmaschinen
DE102004049604A1 (de) * 2003-11-07 2005-06-02 Heidelberger Druckmaschinen Ag Beleuchtungssystem für eine Druckmaschine
DE102006028855A1 (de) * 2006-06-23 2007-12-27 Koenig & Bauer Aktiengesellschaft Druckmaschine mit einer Sichtscheibe zum Schutz vor elektromagnetischer Strahlung

Also Published As

Publication number Publication date
DE202005015011U1 (de) 2005-12-01
EP1767480A3 (fr) 2010-08-04

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