EP1345836A1 - Vorrichtung zum schwebenden führen von bahn- oder bogenmaterial in einer verarbeitungsmaschine - Google Patents
Vorrichtung zum schwebenden führen von bahn- oder bogenmaterial in einer verarbeitungsmaschineInfo
- Publication number
- EP1345836A1 EP1345836A1 EP01990543A EP01990543A EP1345836A1 EP 1345836 A1 EP1345836 A1 EP 1345836A1 EP 01990543 A EP01990543 A EP 01990543A EP 01990543 A EP01990543 A EP 01990543A EP 1345836 A1 EP1345836 A1 EP 1345836A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- guide surface
- blowing
- openings
- sheet material
- nozzles
- 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.)
- Granted
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H23/00—Registering, tensioning, smoothing or guiding webs
- B65H23/04—Registering, tensioning, smoothing or guiding webs longitudinally
- B65H23/24—Registering, tensioning, smoothing or guiding webs longitudinally by fluid action, e.g. to retard the running web
-
- 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
- B65H29/52—Stationary guides or smoothers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H2301/00—Handling processes for sheets or webs
- B65H2301/40—Type of handling process
- B65H2301/44—Moving, forwarding, guiding material
- B65H2301/446—Assisting moving, forwarding or guiding of material
- B65H2301/4461—Assisting moving, forwarding or guiding of material by blowing air towards handled material
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H2402/00—Constructional details of the handling apparatus
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H2406/00—Means using fluid
- B65H2406/10—Means using fluid made only for exhausting gaseous medium
- B65H2406/11—Means using fluid made only for exhausting gaseous medium producing fluidised bed
- B65H2406/113—Details of the part distributing the air cushion
Definitions
- the invention relates to a device for the floating guiding of web or sheet material in a processing machine according to the preamble of claim 1.
- This device is particularly suitable for contactless sheet guidance and sheet feeding in a printing press.
- a known device of this type is described in DE-OS 19 07 083 with a blow box with a guide surface and a plurality of distributed blow openings, each of which has an inclined guide surface which is lowered into the blow box.
- the nozzles there have a tongue and the radial edges of the guide surface form an angle between 120 ° and 180 °. This creates a wide beam, not a directed beam, with a flat effect. All blowing nozzles are also arranged in the same direction. As a result, hardly any tightening effect can be produced in one direction, which is disadvantageous especially in the case of thin sheet material, since this tends to flutter.
- DE 28 02 610 AI shows nozzles, the side surfaces of which run parallel to the oblique guide surface and are provided with a tongue. These nozzles are arranged close to one another on blow boxes and a guide surface is described which consists of several blow boxes and is arranged above and below sheet material to be guided. In one development, the nozzles are assigned a perforation which, as an additional blowing agent, is intended to prevent the processing material from coming into contact with the blow box (guide surface).
- a device is known with which sheet or web material is guided and conveyed contactlessly on a guide surface.
- the device has nozzles with a nozzle body, each of which is sunk in the nozzle body and inclined to the outside of the nozzle body in the direction of the guide surface and has a guide surface for the emerging blown air flow.
- the nozzle body has a conical depression within the guide surface, in which at least one nozzle opening is arranged eccentrically.
- the invention is based on the object of providing a device of the type mentioned at the outset which avoids the disadvantages mentioned, which in particular permits uniform pressure build-up for the floating guiding of sheet or web material along a guide surface and noticeably reduces the risk of smearing.
- the device for floating guiding starts from a guiding surface on which the web or sheet material is guided in a conveying direction without contact by means of an air cushion.
- the air cushion is fed by nozzles which operate according to the aerodynamic paradox, after which the web or sheet material is carried simultaneously (overpressure area) and sucked in (underpressure area).
- This guide surface is closed per se and, according to a predetermined distribution, has a plurality of incorporated nozzles which are designed as air-actuated, preferably identical nozzles.
- a first advantage of the device is based on the fact that - starting from a large number of nozzles in the guide surface - a flat depression is arranged around the blow opening in the rear area of each nozzle - inside the guide surface.
- each blowing opening is additionally arranged lowered from the plane of the guide surface.
- each nozzle is preferably formed with an extension of the guide surface, which begins at the blowing opening, and associated side flanks, at the nozzle.
- each nozzle supports the above-mentioned divergence of the guide surfaces by means of a special geometry of the blow openings.
- a blow opening known per se is formed in such a way that the blow flow generated by a pneumatic system and supplied by means of the flow channel is divided into two, preferably slightly laterally oriented, blow openings (two blow mouths) before exiting the flow channel.
- This is supported by the special, mirror-image geometry described in more detail in the exemplary embodiment.
- support openings are arranged laterally to the flanks of each nozzle in the guide surface of the device. These support openings, for example small bores, can be blown with air (from the flow channel) and cause a direct flow impulse against the underside of the web or sheet material. This provides additional support for web or sheet material, particularly in the area of the side flanks, so that a floating guide can be realized without greasing.
- the risk of lubrication can be further reduced by rounding off all edges, in particular the transitions of the two flanks and the flat lowering of each nozzle, into the guide surface (with a defined radius).
- the device according to the invention with the nozzles can be produced by a single shaping tool with relatively little effort.
- Show: 1 shows a section (AA) through the device in the region of a nozzle in its longitudinal direction
- Fig. 2 is a plan view of the nozzle according to the figure
- FIG. 3 shows a section (B-B) through the device in the region in front of the blow opening of the nozzle according to FIG. 1, and
- Fig. 4 is a three-dimensional representation of the
- the device for the floating guiding of web or sheet material 3 has a closed guide surface 2, which extends along a conveying path in the conveying direction 11 of the web or sheet material 3.
- a large number of nozzles 1 are introduced into this guide surface 2 according to a specific distribution.
- nozzles 1 of this type are produced by means of a forming tool by means of a straight-line punch cut (transverse to the planned blowing direction) with a straight edge 17 in the region of the blowing openings and by deep drawing (lowering the material from the plane of the guide surface 2).
- Such a nozzle 1 has a rear area 12 and a front area 13, the areas 12, 13 being delimited by the edge 17.
- the nozzle 1 can be arranged as desired on a guide surface 2.
- the blown air flow of each nozzle 1 can be arranged against the conveying direction or laterally to the conveying direction 11 or in the conveying direction 11.
- a flat depression 14 which is delimited by the edge 17 and merges into the plane of the guide surface 2 with a defined radius.
- the depression 14 in the rear area 12 is arranged approximately semi-circular.
- the nozzle 1 has a first blowing opening 6 and a second adjacent blowing opening 7, which are formed by a separating point 15 as blowing openings 6, 7 lying separately next to one another.
- the separation point 15 is preferably a depression, for example a bead, which is formed analogously to a web in terms of shaping technology and extends vertically from the edge 17 to the guide surface 4.
- the separation point 15 is preferably a conical bead. This means that the blown air jets also flow over the side flanks 8.9 and reduce the risk of smearing.
- Each of the blowing openings 6, 7 preferably has a cross-sectional area for the air outlet, which has the shape of a parallelogram.
- each blowing opening 6, 7 has a cross-sectional area in the form of a parallelogram, which are arranged in mirror image relative to one another in relation to the vertically arranged separation point 15 (FIG. 3).
- a recessed guide surface 4 which extends at a defined angle into the plane of the guide surface 2, preferably trumpet-shaped, in a preferably straight transition 10.
- the guide surface 4 is also assigned by a first flank 8 (the first blowing opening 6) and delimited by a second flank 9 assigned to the second blowing opening 7.
- the flanks 8, 9 are closed side surfaces and extend from the Guide surface 4 inclined flat in the plane of the guide surface 2.
- the flanks 8, 9 preferably have a diverging width. Alternatively, their width can also be made constant.
- each nozzle 1 results in a strongly diverging, preferably trumpet-shaped guide surface 4 which, in conjunction with the flanks 8, 9, starting from two separate blowing openings 6, 7, creates a pressure build-up which acts over a large width between the guide surface 2 and the underside of the web. or sheet material 3 allowed.
- Such nozzles 1 can be acted upon, for example, at a pressure of approximately 50 to 500 Pa with a gaseous medium.
- a gaseous medium for example, air can be used as the gaseous medium, which is introduced into this flow channel 5 by a pneumatic system, preferably at least one fan, in a flow channel 5 arranged on the rear side of the guide surface 2.
- At least one support opening 16 is arranged in the front surface 13 to the sides of the flanks 8, 9 in the guide surface 2, which is supplied with blown air by means of the pneumatic system and flow channel 5.
- These support openings 16 additionally support the web or sheet material 3 from below and prevent possible contact with the flanks 8, 9, in particular in their transition area.
- the support openings 16 are preferably to be arranged in the vicinity of the blowing openings 6, 7, since the strongest suction effect occurs here.
- At least one support opening 16 is arranged in the region of the depression 14 in order to support the web or sheet material 3 in the rear region 12 of the nozzle 1 and to noticeably reduce the risk of smearing.
- the exit surface of such a support bore 16 is significantly smaller than the exit surface of the blowing openings 6, 7.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Advancing Webs (AREA)
- Feeding Of Articles By Means Other Than Belts Or Rollers (AREA)
- Drying Of Solid Materials (AREA)
- Pressure Welding/Diffusion-Bonding (AREA)
- Registering, Tensioning, Guiding Webs, And Rollers Therefor (AREA)
- Delivering By Means Of Belts And Rollers (AREA)
Description
Claims
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE10064589A DE10064589C2 (de) | 2000-12-22 | 2000-12-22 | Vorrichtung zum schwebenden Führen von Bahn- oder Bogenmaterial in einer Verarbeitungsmaschine |
DE10064589 | 2000-12-22 | ||
PCT/EP2001/014506 WO2002051733A1 (de) | 2000-12-22 | 2001-12-11 | Vorrichtung zum schwebenden führen von bahn- oder bogenmaterial in einer verarbeitungsmaschine |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1345836A1 true EP1345836A1 (de) | 2003-09-24 |
EP1345836B1 EP1345836B1 (de) | 2005-02-09 |
Family
ID=7668678
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP01990543A Expired - Lifetime EP1345836B1 (de) | 2000-12-22 | 2001-12-11 | Vorrichtung zum schwebenden führen von bahn- oder bogenmaterial in einer verarbeitungsmaschine |
Country Status (7)
Country | Link |
---|---|
EP (1) | EP1345836B1 (de) |
JP (1) | JP3703804B2 (de) |
CN (1) | CN1263665C (de) |
AT (1) | ATE288869T1 (de) |
CZ (1) | CZ20031725A3 (de) |
DE (2) | DE10064589C2 (de) |
WO (1) | WO2002051733A1 (de) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE10332213B3 (de) * | 2003-07-16 | 2004-08-19 | Koenig & Bauer Ag | Bogendruckmaschine |
JP2007245719A (ja) * | 2006-03-15 | 2007-09-27 | Heidelberger Druckmas Ag | 枚葉紙搬送装置 |
Family Cites Families (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1907083C3 (de) * | 1969-02-13 | 1975-12-18 | Vits-Maschinenbau Gmbh, 4018 Langenfeld | Blaskasten zum schwebenden Führen und/oder Fördern von Bahnen oder Bogen |
DE2802610C2 (de) * | 1978-01-21 | 1983-05-05 | Vits-Maschinenbau Gmbh, 4018 Langenfeld | Blaskasten zum schwebenden Führen und/oder Fördern von Bahnen oder Bogen |
DE8915626U1 (de) * | 1989-11-06 | 1991-02-21 | Vits, Hilmar, 5653 Leichlingen | Vorrichtung zum schwebenden Führen von zu fördernden Materialbahnen oder Materialbogen |
DE4113465A1 (de) * | 1991-04-25 | 1992-10-29 | Heidelberger Druckmasch Ag | Vorrichtung zum schwebenden fuehren und/oder foerdern von bahnen oder bogen |
DE4406847C2 (de) * | 1994-03-03 | 1997-07-10 | Koenig & Bauer Albert Ag | Vorrichtung zum schwebenden Führen von Bogen oder Bahnen |
DE4406848C2 (de) * | 1994-03-03 | 1997-11-06 | Koenig & Bauer Albert Ag | Blaskasten zum schwebenden Führen von Bogen oder Bahnen |
DE29615294U1 (de) * | 1996-09-03 | 1996-10-24 | Heidelberger Druckmaschinen Ag, 69115 Heidelberg | Vorrichtung zur berührungslosen Bogenführung in einer Bogendruckmaschine |
-
2000
- 2000-12-22 DE DE10064589A patent/DE10064589C2/de not_active Expired - Fee Related
-
2001
- 2001-12-11 DE DE50105336T patent/DE50105336D1/de not_active Expired - Lifetime
- 2001-12-11 WO PCT/EP2001/014506 patent/WO2002051733A1/de active IP Right Grant
- 2001-12-11 AT AT01990543T patent/ATE288869T1/de active
- 2001-12-11 JP JP2002552840A patent/JP3703804B2/ja not_active Expired - Fee Related
- 2001-12-11 CN CNB018211941A patent/CN1263665C/zh not_active Expired - Fee Related
- 2001-12-11 CZ CZ20031725A patent/CZ20031725A3/cs unknown
- 2001-12-11 EP EP01990543A patent/EP1345836B1/de not_active Expired - Lifetime
Non-Patent Citations (1)
Title |
---|
See references of WO02051733A1 * |
Also Published As
Publication number | Publication date |
---|---|
CZ20031725A3 (en) | 2004-05-12 |
JP3703804B2 (ja) | 2005-10-05 |
JP2004516212A (ja) | 2004-06-03 |
CN1482991A (zh) | 2004-03-17 |
DE10064589A1 (de) | 2002-07-18 |
CN1263665C (zh) | 2006-07-12 |
WO2002051733A1 (de) | 2002-07-04 |
ATE288869T1 (de) | 2005-02-15 |
DE10064589C2 (de) | 2002-11-07 |
DE50105336D1 (de) | 2005-03-17 |
EP1345836B1 (de) | 2005-02-09 |
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