EP2078570B1 - Cabine de travail dotée d'une imprimante externe - Google Patents

Cabine de travail dotée d'une imprimante externe Download PDF

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Publication number
EP2078570B1
EP2078570B1 EP08100332A EP08100332A EP2078570B1 EP 2078570 B1 EP2078570 B1 EP 2078570B1 EP 08100332 A EP08100332 A EP 08100332A EP 08100332 A EP08100332 A EP 08100332A EP 2078570 B1 EP2078570 B1 EP 2078570B1
Authority
EP
European Patent Office
Prior art keywords
work
printer
transfer opening
working chamber
cabinet
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.)
Not-in-force
Application number
EP08100332A
Other languages
German (de)
English (en)
Other versions
EP2078570A1 (fr
Inventor
Bruno Nufer
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.)
Mettler Toledo GmbH Germany
Original Assignee
Mettler Toledo 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 Mettler Toledo AG filed Critical Mettler Toledo AG
Priority to DE502008001437T priority Critical patent/DE502008001437D1/de
Priority to AT08100332T priority patent/ATE482774T1/de
Priority to EP08100332A priority patent/EP2078570B1/fr
Priority to JP2009001325A priority patent/JP5276453B2/ja
Priority to CN2009100020235A priority patent/CN101480655B/zh
Priority to US12/351,224 priority patent/US8376821B2/en
Publication of EP2078570A1 publication Critical patent/EP2078570A1/fr
Application granted granted Critical
Publication of EP2078570B1 publication Critical patent/EP2078570B1/fr
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B08—CLEANING
    • B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
    • B08B15/00—Preventing escape of dirt or fumes from the area where they are produced; Collecting or removing dirt or fumes from that area
    • B08B15/02—Preventing escape of dirt or fumes from the area where they are produced; Collecting or removing dirt or fumes from that area using chambers or hoods covering the area
    • B08B15/023—Fume cabinets or cupboards, e.g. for laboratories

Definitions

  • the invention relates to a work cabin, which is for example part of a clean room, part of a safety workbench, part of an insulator or part of a smoke cabinet.
  • Cleanrooms, safety cabinets, insulators, and fume cupboards are used in many areas of industry and education, such as research and development, production, and quality control of products. All of these devices have a work cabin with a working chamber. All facilities also have in common that the person working with it outside the working chamber, therefore, is in the vicinity of the work cabin. Furthermore, the working chamber is connected to a ventilation device and has transfer openings which connect the working chamber with the environment of the work cabin. Through these transfer openings, the material to be treated can be introduced or removed. But they also allow access to the working chamber. Transfer openings can be designed as freely accessible openings, as locks, or as openings provided with protective means, for example with rubber gloves.
  • a negative pressure or pressure is generated.
  • a negative pressure is always generated when the person outside the work cabin is to be protected from the substances present in the work chamber.
  • By constantly prevailing in the working chamber vacuum is continuously through the transfer openings air from the environment in the Suction chamber sucked. This can prevent that toxic substances from the working chamber can get into the environment.
  • Such a device is used for example in the DE 3617965 A1 described.
  • the device referred to as a deduction cabinet has a work table with a work booth.
  • the working cabin is formed by the worktable surface, the right and left side walls, the rear wall and the cover of the fume cupboard, as well as a transparent front wall.
  • the thus enclosed working chamber is accessible from the front through a transfer opening.
  • the material to be treated is metered, transferred, warmed mixed, cooled and optionally the material to be treated, for example pulverulent substances, dissolved in solvents. It must be ensured that when treating different substances, these are not confused and mislabeled.
  • the labeling of the vessels is done by hand.
  • metering devices are available by means of which automatically, for example, a powdery substance, can be dosed.
  • the weight of the metered amount is detected by means of a load cell.
  • the weighing result can therefore be printed together with an identification means, for example a barcode or matrix code for labeling the vessel on a printer.
  • This printed product is usually a self-adhesive label, which can be pasted onto the manually labeled vessel.
  • the procedure described above has the disadvantage that the hand-written vessels despite all due care can be provided with the wrong label. Furthermore, the lettering by hand means a certain amount of time, which unnecessarily lengthens the entire dosing process and thereby exposes the operator, for example in the treatment of toxic or carcinogenic substances, unnecessarily long to a high mental stress. In addition, the procedure described above, the safety regulations corresponding to the operators from time to time disregards the fact that the label is brought into the working chamber from outside the cabin after each dosage, without adhering to the cleaning instructions for the hands.
  • the object of the present invention is therefore to ensure the rapid and secure labeling of filled in a working chamber with material to be treated with the printed products of a printer. Furthermore, the elaborate labeling should be eliminated by hand.
  • a working cabin according to the invention with a working chamber for temporary accommodation of material to be treated has at least one transfer opening, through which the working chamber is connected to the environment of the work cabin. Furthermore, the at least one transfer opening serves for the introduction and / or the discharge of the material to be treated and / or the access into the working chamber. In addition, with the working chamber, a, preferably the generation of a negative pressure in the working chamber serving ventilation device is connected. Furthermore, the work booth has at least one printer transfer opening, which printer transfer opening connects the print product output of a printer arranged in the vicinity of the work booth with the work chamber. In this case, it does not matter whether the printed product output extends through the printer transfer opening into the working chamber or whether the printed product output is arranged only after the printer transfer opening.
  • the printed product output preferably has a shaft-shaped housing part.
  • the inventive arrangement in which the printer is located outside the cabin, but the printed products can pass through the printer transfer port into the working chamber, has many advantages.
  • the likelihood of confusion described above can be eliminated because after each dosing process the filled vessel immediately with the printed product, such as a self-adhesive label on which the filling weight, the Substitute name and an identification code is printed, is inscribed.
  • identification code a barcode, a matrix code or a number sequence is conceivable.
  • the printed product can also contain a storage medium, for example an RFID tag, on which these data are stored electronically.
  • the printer since the printer is located in the vicinity of the work booth and not in the work chamber, it is always accessible without risk. For example, it can be safely maintained and refilled with ribbon and labels. Furthermore, printer malfunctions can be remedied at any time, even if an operator is working in the working chamber.
  • the working cabin according to the invention has a ventilation device in order to prevent toxic substances from contaminating the environment of the work cabin.
  • the printed product output therefore has a housing part with defined suction openings, through which suction openings ambient air from the surroundings of the working cabin can be sucked into the working chamber through the printer transfer opening. This prevents that items to be treated can reach the interior of the printer housing via the printer transfer opening. This is important because a dirty printer body could contaminate, for example, the operator and the environment with labels during refilling of the printer.
  • the suction openings can be equipped with an air filter.
  • a collecting tray for printed products of the printer is preferably arranged in the area of the printer transfer opening within the working chamber.
  • the printed product has a defined place where it can pick up the operator when needed.
  • the drip tray may also include a sensor whose signal, whether a label has been taken or not, for example, is forwarded to a monitoring device.
  • the monitoring device for example a production planning and control system or a control and regulating device may be programmed so that a next operation in the working chamber is not executable until the printed matter has been removed from the drip tray.
  • more or less dust and dirt may be generated in the printer housing during the printing process.
  • This dust and dirt can pass from the printer housing through the printed product output in the working chamber, if, for example, no or too small suction in the housing part of the printed product output are formed.
  • heat can significantly, which can then also get into the working chamber.
  • dirt and dust can spread throughout the working chamber and contaminate the material to be treated.
  • the hot air generated by the printer can affect sensitive measuring devices arranged in the working chamber, such as scales.
  • the ventilation device may comprise at least one suction duct, at the end of which at least one suction opening is arranged and which suction opening is arranged within the working chamber and in the region of the printer transfer opening.
  • Another way to protect the printer housing from the material to be treated or the contamination of the material to be treated by dust and dirt to prevent may consist in that the printer transfer port or the printed product output has a lock with at least two rollers pressed against each other.
  • the shaft-shaped cross section of the printed product output is largely closed by the two rollers, wherein the printed products between the two, preferably made of flexible material rolls are conveyed through.
  • the same goal can also be achieved by having the printer transfer port or the printed product output port a sluice with a rotatably arranged flap.
  • the working cabin according to the invention does not necessarily have to be set up alone.
  • the work booth may also be part of a clean room, part of a safety cabinet, part of an insulator or part of a smoke cabinet.
  • the inventive work cabin can also be referred to as a safety cabin or weighing cabin.
  • the transfer openings can of course be provided with closure means, for example with doors, flaps or covers.
  • small dosing units are available which have a weighing cell for controlling the discharge capacity.
  • the mass of the vessel or the mass of its contents is continuously detected during the dosing and transmitted the weighing signal to a processor unit.
  • the processor unit the weighing signal is continuously compared with a previously set by the user setpoint. As soon as the weighing signal corresponds to the setpoint, the dosing process is stopped.
  • the higher the measuring accuracy of the load cell the more sensitive it is to disturbing influences such as air turbulence within the working chamber. Since the work cabin has a ventilation device for the reasons mentioned above, such air turbulence is unavoidable.
  • a metering device with at least one windscreen is arranged in the working chamber.
  • Windbreak refers to a housing or enclosure suitable for keeping air turbulence away from the sensitive parts of the load cell and, preferably, the vessel placed on a load receptor of the load cell.
  • This windscreen can also serve as an additional safety barrier against the escape of toxic substances.
  • a gas connection may be present in the working chamber with which gas connection the space enclosed by the draft shield of the dosing device can be connected.
  • the interior of the windshield is flooded, if necessary, for example, with a protective gas.
  • an overpressure can be generated to protect the material to be treated by the gas connection within the windshield.
  • the smallest particles of a pulverulent material to be treated can enter the working chamber through small leaks in the windbreak and when the windbreak is opened. Due to the negative pressure prevailing there, caused by the ventilation device and by the air flowing in from the environment, the particles are continuously sucked off the ventilation device and therefore do not reach the environment.
  • FIG. 1 is shown schematically and in three-dimensional view of a work booth 100.
  • the work cabin 100 has a cabin housing 101 consisting of a front wall, two side walls and a cover, and a cabin floor 102.
  • the cabin housing 101 and the cabin floor 102 enclose a working chamber 103 and thus separate this space from the environment 120 of the work cabin 100.
  • the cabin housing 101 is preferably made of transparent material in order to ensure the best possible view into the working chamber 103.
  • a transfer opening 104 is formed, which allows access from the environment 120 ago to the working chamber 103.
  • a printer 105 is further arranged.
  • the cab housing 101 has a printer transfer opening 106, through which passes a shaft-shaped printed product output 108 of the printer 105 arranged in the surroundings 104 of the work booth 100.
  • the printed product output 108 is thus connected to the working chamber 103.
  • the printed product output 108 may also be arranged downstream of the printer transfer opening 106, wherein printed products of the printer 105 leave the printed product output 108 at the interface to the printer transfer opening 106 and pass through the printer transfer opening 106 into the working chamber 103.
  • the work cabin 100 further comprises a ventilation device 107, which in FIG. 1 is shown schematically as the exhaust pipe at the top of the cabin housing 101. Ventilation devices of various designs are known in the art, a detailed description is therefore unnecessary on this Job.
  • the most important aspect of the ventilation device 107 is that in the working chamber 103, a negative pressure can be generated and that due to the prevailing pressure difference to the ambient pressure ambient air from the environment 120 through the transfer port 104 and through the printer transfer port 106 into the working chamber 103 can flow.
  • the printed product output 108 may have suction openings, not shown, through which suction openings ambient air from the environment 120 of the work booth 100 through the printer transfer opening 106 into the working chamber 103 is sucked. This prevents that items to be treated can pass through the printer transfer opening 106 into the interior of the printer housing. This is important because contaminated by a dirty printer housing, for example, the operator and the environment.
  • the suction openings may be equipped with an air filter.
  • FIG. 2 shows the in FIG. 1 shown schematically and in three-dimensional view work booth 100, wherein in the working chamber 103 of the work booth 100, a metering device 130 is arranged. Below a dosing head of the metering device 130, a vessel 140 can be seen, in which is to be metered.
  • the metering device 130 in FIG. 2 shown with broken lines, is enclosed with a windshield 131 shown schematically. As the representation of a handle 133 indicates, this windscreen 131 can be opened so that the metering device 130 is freely accessible when the windbreak 131 is open.
  • a gas connection 132 is shown schematically, which opens into the windbreak 131.
  • This gas connection 132 in conjunction with the windbreak 131 special meanings. If contamination of the material to be treated is to be excluded or if the material to be treated must under no circumstances come into contact with the ambient air, the interior of the windscreen 131 can be flooded with a suitable gaseous medium, for example a protective gas, via the gas connection 132 before the metering process. If that Shielding gas is heavier than air, the vessel 140 remains flooded with inert gas, even if after the dosing of the windshield 131 is opened.
  • a suitable gaseous medium for example a protective gas
  • FIG. 3 a section of the work booth in the area of the printer transfer opening 106 is shown schematically in plan view and in section.
  • the cabin housing 101, the working chamber 103 of the car floor 102 and the first embodiment of the printed matter output 108 correspond to those in the FIGS. 1 and 2 represented units.
  • the printed product output 108 has a collecting tray 206 at its end projecting into the working chamber 103.
  • the collecting tray 206 may, for example, contain a sensor whose signal, whether or not the printed product 260 has been taken, can be forwarded, for example, to a control and regulating device of the previously described metering device.
  • the control and regulating device may be programmed so that the next dosing process is not executable until the printed matter 260 has been removed from the drip tray 206.
  • FIG. 3 a suction duct 207 is arranged in the working chamber 103, which is connected to the ventilation device, not shown.
  • a suction opening 208 of the suction duct 207 is arranged above the drip tray 206.
  • the air flow in the printed matter output 108 prevents gases and powdery substances from getting from the working chamber 103 into the interior of the printer. Furthermore, this arrangement also prevents dust and dirt, for example toner particles of the printer, from entering the working chamber 103.
  • the printed product output 108 can be provided with suction openings 201 which have a defined cross section be.
  • the air flow can also support the transport of the printed products 260 within the printed product output 108.
  • the suction openings 201 may further be equipped with a filter, not shown.
  • the suction chute 207 can have an adjustable ventilation flap 210.
  • FIG. 4 a section of the work booth in the area of the printer transfer opening 106 is shown schematically in plan view and in section.
  • the cabin housing 101, the working chamber 103 and the cabin floor 102 correspond to those in the FIGS. 1 . 2 and 3 represented units.
  • FIG. 4 but is a second embodiment of the printed product issue 308 shown.
  • This lock essentially has a first roller 310 and a second roller 311. The axes of rotation of the rollers 310, 311 are arranged in a plane orthogonal to the longitudinal direction of the printed matter output 308 and parallel to one another.
  • the diameters of the rollers 310, 311 are selected such that the lateral surfaces of the rollers 310, 311 touch one another at a line.
  • the rollers 310, 311 are made of elastic material, so that a printed product 360 can be conveyed freely between the rollers 310, 311.
  • the rollers 310, 311 are preferably driven by a drive, not shown.
  • the inner contour of the printed product output 308 is configured between the printer and the rollers 310, 311 such that the printed product 360 is compulsorily performed between the two rollers 310, 311.
  • brushes 301 may be arranged at suitable locations. These brushes 301 are preferably made of conductive materials and grounded so that electrostatic charges on the printed product 360 and / or the rollers 310, 311 can be eliminated.
  • FIG. 5 a section of the work booth in the area of the printer transfer opening 106 is shown schematically in plan view and in section.
  • the cabin housing 101, the working chamber 103 and the cabin floor 102 correspond in the FIGS. 1 . 2 and 3 represented units.
  • a third embodiment variant of the printed product output 408 is shown inside the shaft-shaped printed matter output 408 is as in FIG. 4 a lock arranged.
  • the lock in FIG. 5 is formed by a rotatably arranged flap 401.
  • the flap 401 whose axis of rotation is arranged in a direction orthogonal to the longitudinal direction of the printed matter output 408, has a recess 402.
  • the printer outputs a printed product 460, it slides through the manhole of the printed product output 408 into the recess 402.
  • the inclination of the print product output tray 408 to the direction of gravity must be selected so that the printed product 460 slides into the recess by itself through the tray 402 slips.
  • the flap 401 is rotated by about 120 ° in the indicated arrow direction, whereby the printed product 460 is conveyed in a collecting tray 406 on.
  • Even if the passage cross section of the printed matter output 408 is reduced to a few columns by the lock, a small amount of air can still be drawn through these gaps into the working chamber 103. Of course, these columns can also be completely eliminated by a suitable design, for example by labyrinth seals and elastic sealing means.

Landscapes

  • Ventilation (AREA)
  • Workshop Equipment, Work Benches, Supports, Or Storage Means (AREA)
  • Accessory Devices And Overall Control Thereof (AREA)
  • Automobile Manufacture Line, Endless Track Vehicle, Trailer (AREA)
  • Forklifts And Lifting Vehicles (AREA)
  • Processing Of Solid Wastes (AREA)

Claims (9)

  1. Cabine de travail (100) comprenant une chambre de travail (103) pour le logement temporaire de l'objet à traiter, comprenant au moins une ouverture de transfert (104), par laquelle la chambre de travail (103) est reliée à l'environnement (120) de la cabine de travail (100) et laquelle ouverture de transfert (104) sert à l'introduction et/ou l'évacuation de l'objet à traiter et/ou à l'accès à la chambre de travail (103), et un dispositif de ventilation (107) relié à la chambre de travail (103) et servant à la génération d'une dépression dans la chambre de travail (103), caractérisé en ce que également au moins une ouverture de transfert d'imprimante (106) est présente, ouverture de transfert d'imprimante (106) par laquelle la sortie du produit imprimé (108, 308, 408) d'une imprimante (105, 205) disposée dans l'environnement (120) de la cabine de travail (100) est reliée à la chambre de travail (103).
  2. Cabine de travail (100) selon la revendication 1, caractérisé en ce que l'ouverture de transfert d'imprimante (106) présente une partie de boîtier avec des ouvertures d'aspiration (201) définies, ouvertures d'aspiration (201) par lesquelles de l'air ambiant sortant de l'environnement (120) de la cabine de travail (100) peut être aspiré par l'ouverture de transfert d'imprimante (106) dans la chambre de travail (103).
  3. Cabine de travail (100) selon les revendications 1 et 2, caractérisé en ce qu'un bac collecteur (206, 406) pour les produits imprimés (260, 360, 460) de l'imprimante (105, 205) est disposé dans la zone de l'ouverture de transfert d'imprimante (106) à l'intérieur de la chambre de travail (103).
  4. Cabine de travail (100) selon l'une quelconque des revendications 1 à 3, caractérisé en ce que l'ouverture de ventilation (107) présente au moins une bouche d'aspiration (207), sur l'extrémité de laquelle est disposée au moins une ouverture d'aspiration (208) et laquelle ouverture d'aspiration (208) est disposée à l'intérieur de la chambre de travail (103) et dans la zone de l'ouverture de transfert d'imprimante (106).
  5. Cabine de travail (100) selon l'une quelconque des revendications 1 à 4, caractérisé en ce que l'ouverture de transfert d'imprimante (106) ou la sortie du produit imprimé (108, 308, 408) présente un sas avec au moins deux galets (310, 311) comprimés l'un contre l'autre.
  6. Cabine de travail (100) selon l'une quelconque des revendications 1 à 4, caractérisé en ce que l'ouverture de transfert d'imprimante (106) ou la sortie du produit imprimé (108, 308, 408) présente un sas avec un clapet (401) disposé de façon rotative.
  7. Cabine de travail (100) selon l'une quelconque des revendications 1 à 6, caractérisé en ce que la cabine de travail (100) fait partie d'un espace pur, partie d'un établi de sécurité, partie d'un isolateur ou partie d'une armoire d' évacuation de fumée.
  8. Cabine de travail (100) selon l'une quelconque des revendications 1 à 7, caractérisé en ce qu'au moins un dispositif de dosage (130) ou un instrument de mesure gravimétrique avec un abat-vent (131) est disposé dans la chambre de travail (103).
  9. Cabine de travail (100) selon la revendication 8, caractérisé en ce que dans la chambre de travail (103) est présent un raccordement de gaz (132), raccordement de gaz (132) avec lequel l'espace entouré par le abat-vent (131) du dispositif de dosage (130) peut être relié.
EP08100332A 2008-01-10 2008-01-10 Cabine de travail dotée d'une imprimante externe Not-in-force EP2078570B1 (fr)

Priority Applications (6)

Application Number Priority Date Filing Date Title
DE502008001437T DE502008001437D1 (de) 2008-01-10 2008-01-10 Arbeitskabine mit extern angeordnetem Drucker
AT08100332T ATE482774T1 (de) 2008-01-10 2008-01-10 Arbeitskabine mit extern angeordnetem drucker
EP08100332A EP2078570B1 (fr) 2008-01-10 2008-01-10 Cabine de travail dotée d'une imprimante externe
JP2009001325A JP5276453B2 (ja) 2008-01-10 2009-01-07 キャビネットの外部にプリンタを備えた作業キャビネット
CN2009100020235A CN101480655B (zh) 2008-01-10 2009-01-08 具有设在其外部的打印机的工作柜
US12/351,224 US8376821B2 (en) 2008-01-10 2009-01-09 Work cabinet with a printer arranged outside the cabinet

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP08100332A EP2078570B1 (fr) 2008-01-10 2008-01-10 Cabine de travail dotée d'une imprimante externe

Publications (2)

Publication Number Publication Date
EP2078570A1 EP2078570A1 (fr) 2009-07-15
EP2078570B1 true EP2078570B1 (fr) 2010-09-29

Family

ID=39481227

Family Applications (1)

Application Number Title Priority Date Filing Date
EP08100332A Not-in-force EP2078570B1 (fr) 2008-01-10 2008-01-10 Cabine de travail dotée d'une imprimante externe

Country Status (6)

Country Link
US (1) US8376821B2 (fr)
EP (1) EP2078570B1 (fr)
JP (1) JP5276453B2 (fr)
CN (1) CN101480655B (fr)
AT (1) ATE482774T1 (fr)
DE (1) DE502008001437D1 (fr)

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CN101480655A (zh) 2009-07-15
JP2009166233A (ja) 2009-07-30
DE502008001437D1 (de) 2010-11-11
ATE482774T1 (de) 2010-10-15
US8376821B2 (en) 2013-02-19
EP2078570A1 (fr) 2009-07-15
JP5276453B2 (ja) 2013-08-28
US20090180846A1 (en) 2009-07-16
CN101480655B (zh) 2012-11-14

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