WO2003035522A1 - Device for pressing one moving machine piece against another - Google Patents
Device for pressing one moving machine piece against another Download PDFInfo
- Publication number
- WO2003035522A1 WO2003035522A1 PCT/EP2002/007293 EP0207293W WO03035522A1 WO 2003035522 A1 WO2003035522 A1 WO 2003035522A1 EP 0207293 W EP0207293 W EP 0207293W WO 03035522 A1 WO03035522 A1 WO 03035522A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- winding
- cylinder unit
- force
- pneumatic piston
- resilient element
- Prior art date
Links
- 238000004804 winding Methods 0.000 claims abstract description 43
- 230000008878 coupling Effects 0.000 claims description 20
- 238000010168 coupling process Methods 0.000 claims description 20
- 238000005859 coupling reaction Methods 0.000 claims description 20
- 229920001169 thermoplastic Polymers 0.000 claims description 2
- 239000004416 thermosoftening plastic Substances 0.000 claims 1
- 230000001154 acute effect Effects 0.000 description 1
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
- B65H18/00—Winding webs
- B65H18/08—Web-winding mechanisms
- B65H18/26—Mechanisms for controlling contact pressure on winding-web package, e.g. for regulating the quantity of air between web layers
Definitions
- the invention relates to a device for pressing a movable machine part against another, preferably for pressing a movable pressure roller against a winding shaft of a winding device or against a winding roller forming thereon, consisting of a pneumatic piston-cylinder unit.
- Pneumatic piston-cylinder units which are usually controlled by valves from electronic control devices, only work in a limited pressure range. If this pressure range is, for example, two to five bar, the pressure force exerted by the pneumatic cylinder can only be varied in this range. For the sake of simplicity, it is assumed that a pneumatic piston-cylinder unit generates a pressure force of 200 N at a pressure of two bar and correspondingly 500 N at five bar. The force exerted by the pneumatic piston-cylinder unit can be varied within a pressure range of two to five bar, i.e. only in the ratio 2/5.
- the object of the invention is therefore to provide a device of the type specified at the beginning, the compressive force of which can be varied sensitively over a wide range.
- a resilient element for. B. a tension spring is switched, the force of which opposes the force of the pneumatic piston-cylinder unit, but is less than the force of the pneumatic piston-cylinder unit.
- a hydropneumatic or a hydraulic piston-cylinder unit could also be provided.
- the device according to the invention thus enables a much larger adjustment range, the total force being adaptable to the desired application by installing springs of different forces.
- the device according to the invention can be used with particular advantage in a device for the continuous winding of webs, preferably webs made of thermoplastic plastic onto winding shafts or winding cores to form winding rolls, with the arms, which are preferably provided with a drive shaft, with arms that are attached to the winding shaft or Is provided with a separating knife which cuts the web when the roll is changed and with a device for winding the new beginning of the web formed by the separating cut onto the winding shaft or winding tube.
- the pressure roller can be pressed against the winding shaft or the winding roll which is formed with particular advantage by the device according to the invention.
- the pressure roller is mounted in the winding device between coupling rods, each of which is articulated to two links, the other ends of which are pivotally mounted in the machine frame, the device according to the invention having the coupling rod or one of the links their variable force applied.
- FIG. 1 is a side view of the winding device according to the invention with the removed front side wall of the machine frame,
- FIG. 2 the four-articulated system drawn out of Fig. 1, each consisting of two links and coupling rods, for the approximate straight guidance of the pressure roller and
- Fig. 3 is a plan view of the exploded four-link system consisting of two links and a coupling rod on one side.
- a rear plate-shaped side part 1 can be seen, which is part of a machine frame.
- the front side panel is removed to make the devices located between the side panels more visible.
- a slide is guided horizontally. Only the rear side wall 2 of the carriage is also shown, since the front side wall is again removed for reasons of better illustration.
- the side walls 1 of the carriage are connected to one another by cross members, not shown.
- the side walls 2 are slidably guided in dashed guides 3 of the side parts 1.
- On its upper side edge, at least the side wall 2 is provided with a toothed rack 4, which meshes with the pinion 5 of a geared motor 6, which is controlled by the electronic machine control for moving the slide with the side walls 2.
- two-armed levers 8 are pivotally mounted on both sides, their arms 10 pointing in the direction of the winding tube 9 carrying the charging electrode 12 which extends across the width of the web 11.
- the inner arms 13 of the two-armed lever 8 are provided with axle journals 14, on which rollers 15 are mounted, which are guided in guides 16 of the side parts 1 of the frame consisting of elongated holes.
- the guides 16 consist of a sloping section 17 and a section 18 which adjoins this and runs parallel to the guide 3.
- a linear unit for example a piston-less pneumatic cylinder
- a linear unit for example a piston-less pneumatic cylinder
- rockers 20 are pivotally mounted on the inner sides of the side walls 2 of the slide, which rockers can be pivoted by pneumatic cylinders 23, the piston rods 21 of which are pivotably mounted on pins 22 of the rockers 20.
- the cylinders 23 are pivotally mounted on pins 24 of the side walls 2 of the slide.
- the rockers 20 carry 23 journal 30 above the pneumatic cylinder, on which coupling links 31 are mounted.
- the coupling links 31 are articulated at their rear ends in the articulation points 33 with links 32, the upper ends of which are pivotably mounted on the journal 34 of the side walls 2.
- the coupling members 31 project beyond the rockers 20 in the direction of the winding tube 9.
- the pressure roller 38 is mounted between the free ends of the coupling rods 31.
- the electrode 12 can consist of a series of needles and is laterally bordered by strips which protectively cover them.
- the arrangement of the knife 19 with cylinder on the support of the electrodes 12 leads to a severing just above the nip between the winding sleeve 9 and the pressure roller 38 when the separating knife is activated, so that a web start with a short flag is formed.
- the web 11 runs in the direction of arrow A and is fed to the pressure roller 38 by a guide roller 39, which can be mounted, for example, between the side walls 2 of the carriage.
- the two-armed levers 8 with electrodes 12 and cutting knives 19 and the guides 16 for the rollers 15 of the inner arms of the two-armed levers 8 are arranged in a gel-like manner to a central plane 40 which runs through the axes of the winding tube 9 and the pressure roller 38. In this way, a simple changeover of the winding device to left-right winding is possible.
- FIG. 2 shows the four-link system, which is drawn out of FIG. 1 for the purpose of a clearer representation and consists of the links and the coupling rod, for the approximately straight guidance of the pressure roller 38.
- the linkage-forming rockers 20 on each side are fastened or clamped to the pivot shaft 7, which are mounted in the manner shown in FIG. 3 between the side walls 2 of the slide which can be moved in guides 3 of the side parts 1.
- the links 32 are pivotally mounted on the journal 34, which are firmly connected to the side walls 2 in the manner shown in FIG. 3.
- the coupling members or coupling rods 31 are articulated on the rockers 20 in the joints 30 and on the links 32 in the joints 33.
- the coupling rods 31 project beyond the rockers 20 by sections 40 of a predetermined length, between which the pressure roller 38 is mounted.
- the link 32 is shorter than the rocker 20 between its joints 7 and 30.
- the link 32 starting from its upper bearing 34, is inclined at an acute angle towards the rocker 20.
- the different lengths of the rocker arms 20 and the link 32 as well as the distances between the joints 30 and 33 on the coupling rods 31 and the lengths of the coupling rod sections 40 between the bearings for the pressure roller 38 and the bearings 30 on the rocker arms 20 are so matched that at a pivoting of the coupling rods between the position of the pressure roller 38 shown in full lines in Fig. 2, in which the coupling rods are displaced in the direction of the winding tube and the retracted position shown in dash-dotted lines, the movement of the pressure roller is approximately linear in the horizontal direction.
- the rockers 20 protrude down the coupling rods 31 by sections 41 of a predetermined length.
- a bearing pin 22 is provided on each section below the coupling rod 31, onto which the piston rod 21 of the pneumatic cylinder ders 23 is mounted, which in turn is pivotally mounted on the pin 24, which is fixedly connected to the side wall 2.
- the tension springs 25 are tensioned between the pins 26 of the sections 41 of the rockers 20 and the pins 27 provided on the side walls 2, which serve to enlarge the range of the contact pressure exerted by the pneumatic cylinders 23 on the rockers 20 becomes.
Landscapes
- Winding Of Webs (AREA)
- Rolls And Other Rotary Bodies (AREA)
- Massaging Devices (AREA)
Abstract
Description
Claims
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP02753077A EP1444155B1 (en) | 2001-10-24 | 2002-07-02 | Device for pressing one moving machine piece against another |
DE50209502T DE50209502D1 (en) | 2001-10-24 | 2002-07-02 | DEVICE FOR PROMOTING ONE MOVABLE MACHINE PART AGAINST ANOTHER |
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE10152493.5 | 2001-10-24 | ||
DE10152493 | 2001-10-24 | ||
DE10203149A DE10203149B4 (en) | 2001-10-24 | 2002-01-28 | Mechanism for positioning pressure roller against winding drum comprises suspension arms connected by pivots to connector plates, one of which is piston-and-cylinder unit while other is mounted on spring |
DE10203149.5 | 2002-01-28 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2003035522A1 true WO2003035522A1 (en) | 2003-05-01 |
Family
ID=26010445
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/EP2002/007293 WO2003035522A1 (en) | 2001-10-24 | 2002-07-02 | Device for pressing one moving machine piece against another |
Country Status (4)
Country | Link |
---|---|
EP (1) | EP1444155B1 (en) |
AT (1) | ATE353844T1 (en) |
DE (1) | DE50209502D1 (en) |
WO (1) | WO2003035522A1 (en) |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3834642A (en) * | 1972-03-24 | 1974-09-10 | Kampf Maschf Erwin | Apparatus for winding tapes and films |
US4095755A (en) * | 1976-03-12 | 1978-06-20 | A. Ahlstrom Osakeyhtio | Rider roll assembly in a winder |
EP0635445A1 (en) * | 1993-07-23 | 1995-01-25 | Knaus, Dennis A. | Method and apparatus for winding |
DE19520774A1 (en) * | 1995-06-07 | 1996-12-12 | Basf Magnetics Gmbh | Winding device esp. for magnetic video tape |
EP0819638A2 (en) * | 1996-07-19 | 1998-01-21 | Voith Sulzer Papiermaschinen GmbH | Method of and device for winding a paper web in a roll with active vibration damper |
-
2002
- 2002-07-02 AT AT02753077T patent/ATE353844T1/en active
- 2002-07-02 DE DE50209502T patent/DE50209502D1/en not_active Expired - Lifetime
- 2002-07-02 EP EP02753077A patent/EP1444155B1/en not_active Expired - Lifetime
- 2002-07-02 WO PCT/EP2002/007293 patent/WO2003035522A1/en active IP Right Grant
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3834642A (en) * | 1972-03-24 | 1974-09-10 | Kampf Maschf Erwin | Apparatus for winding tapes and films |
US4095755A (en) * | 1976-03-12 | 1978-06-20 | A. Ahlstrom Osakeyhtio | Rider roll assembly in a winder |
EP0635445A1 (en) * | 1993-07-23 | 1995-01-25 | Knaus, Dennis A. | Method and apparatus for winding |
DE19520774A1 (en) * | 1995-06-07 | 1996-12-12 | Basf Magnetics Gmbh | Winding device esp. for magnetic video tape |
EP0819638A2 (en) * | 1996-07-19 | 1998-01-21 | Voith Sulzer Papiermaschinen GmbH | Method of and device for winding a paper web in a roll with active vibration damper |
Also Published As
Publication number | Publication date |
---|---|
ATE353844T1 (en) | 2007-03-15 |
EP1444155A1 (en) | 2004-08-11 |
DE50209502D1 (en) | 2007-03-29 |
EP1444155B1 (en) | 2007-02-14 |
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