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
  • B65H23/02—Registering, tensioning, smoothing or guiding webs transversely
  • B65H23/032—Controlling transverse register of web
  • B65H23/038—Controlling transverse register of web by rollers
• • 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
  • B65H23/16—Registering, tensioning, smoothing or guiding webs longitudinally by weighted or spring-pressed movable bars or rollers
• • 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
• • 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
  • B65H23/26—Registering, tensioning, smoothing or guiding webs longitudinally by transverse stationary or adjustable bars or rollers

Definitions

• the invention relates to a web guiding device for guiding a
• Material web in particular a film web
• a device for processing a material web in particular a film web.
• the material webs are usually provided on coils, for example
• Unwinding processing fed via pulleys to the processing position and sometimes rewound.
• an asymmetric, ie oblique insertion of a material web may also be desirable, for example, to guarantee that an edge region of the material web is under high
• Material tension - and thus smooth - is to enable in particular a reliable reading of registration marks or the like.
• the object of the present invention is therefore to provide a web guiding device and a device for processing a material web, by means of which an oblique intake of a material web can be corrected in a simple, cost-effective and reliable manner. This object is achieved by a web guiding device having the features of patent claim 1 and by an apparatus for processing a material web having the features of patent claim 13.
• Such a web guiding device for guiding a material web comprises a first and a second web
• Frame element which: are pivotally attached to a first axis in respective first end regions,
• Fixing element is connected to the first axis.
• symmetrical web tension of the web i. is designed for not obliquely or asymmetrically incoming material webs, by the second axis and the fixing element is a point of attack for asymmetrically acting forces, as they may arise when obliquely pulling a web of material created.
• Under axes are understood to mean components that have a
• Axes may be round in cross-section but also shaped differently, where appropriate, the cross-sectional profile may vary over the longitudinal extent of an axis.
• Web guide role formed frame around the fixing element.
• the web guide roller is deflected in the direction of stronger traction. This relieves the side of the material web which is under greater tension and compensates for the asymmetry created by the oblique intake.
• the web thus leaves the web guide roller straight and with balanced tension.
• no external control so no external sensor and / or actuator is necessary, but the necessary forces to correct the web run are provided solely by the tension of the material web available.
• the desired twisting of the web guiding device can already be achieved if the frame elements and / or the second axle are designed to be flexible.
• the necessary flexibility can be achieved by suitable choice of material and by adjusting the material thickness as a function of tensile forces occurring in a specific processing machine.
• the frame elements and / or the second axis can be made of one or more elastomeric materials in one piece or in several parts. It is also possible to form only a part of the frame elements and / or the second axis of an elastomeric material, which part then provides the necessary flexibility. For example, only the joints between the frame members and the second axis and / or the joints between the frame members and the web guide roll may be made of an elastomeric or partially elastomeric material Be formed bearing element.
• the second axis is formed of an elastomeric and therefore twistable material and / or the second axis of twisted or stranded sub-elements of elastomeric and / or non-elastomeric materials is formed.
• the elasticity of the elastomeric material and / or the proportion of elastomeric materials on the overall construct of the second axis determines their overall Verwind tone and thus allows the adjustment of the flexibility of the web guiding device according to the invention.
• Such spherical bearings allow a pivoting movement of the web guide roller or the second axis about the respective bearing point and thus allow the distortion of the device, without unnecessary material stresses are introduced into this. This increases the life of such
• the joint bearings are further designed as a ball bearing.
• all necessary degrees of freedom are provided with a simple and stable construction of the bearing.
• the second axis is arranged between the first axis and the web guide roller.
• the arrangement of the second axis between the other two transverse elements of the device is in cooperation with the fixing element of the desired
• the second axis is located closer to the first axis than to the web-guiding roller.
• the fixing element is arranged to be movable on the first axis in the axial direction.
• Web guide roller and the fixing element are present.
• the fixing element can be fixed to the first axis by means of a locking element, so that a desired
• the fixing element is in an operating position of
• Frame element set on the first axis In this way, the complete compensation of asymmetrical tensile forces described above can be accomplished, so that the material web leaves the web guide roller free of transverse stresses.
• a central position is meant the distances between the fixing element and the frame elements do not differ by more than 20%, preferably not more than 10%.
• the fixing element on the second axis is preferred
• the fixing element is mounted by means of a bearing sleeve on the second axis.
• a certain sliding of the fixing element is made possible, without leading to tilting or the like.
• an inner diameter of the bearing sleeve by 5% to 20%, preferably from 10% to 12%, greater than an outer diameter of the second axis.
• Locking element is adjustable. As a result, it can be influenced how quickly the twisting of the device follows a changed force distribution on the web guide roller, so that possibly occurring vibrations or oscillations of the device can be damped or completely avoided
• Web guiding device due to asymmetrical tensile forces. Further, it is advantageous if the web guide device is arranged so that the web guide roller of the web guiding device in a
• Web guide roller is arranged perpendicular to a conveying direction of the material web and in the conveying plane of the material web. In this state, no undesired forces are introduced into the material web by the web guiding device.
• the device is preferably designed as an embossing device, in particular a hot stamping device, and / or as a printing device.
• embossing device in particular a hot stamping device
• printing device a printing device
• Fig. 1 is a perspective view of a rolling device for a
• Fig. 2 The unwinding device of Figure 1 in side view.
• Fig. 3 is a front view of the web guiding device of
• Unwinding device according to FIG. 1; 4 shows a side view of the web guiding device according to FIG. 3 with symmetrical web feed;
• FIG. 5 shows a side view of the web guiding device according to FIG. 3 with left-sided asymmetrical web feed
• Fig. 6 is a side view of the web guiding device according to FIG. 3 in the case of the asymmetric web feeder on the right side.
• Figures 1 and 2 show the responsible for the web provision part of a device 1 for processing a material web 2.
• the material web 2 is provided on a spool 21 which is received on a roll 1 1 of the device 1.
• a plurality of deflection rollers 12, which are arranged fixed to the frame and rotatable on a frame 13 of the device 1 the unwound material web 2 is fed to the processing.
• Processing device such as a printing or embossing station, is not shown in the figures.
• the device 1 comprises a
• Web guiding device 3. This comprises two frame elements 31, 32, which are attached with their respective end portions 31 1, 321 pivotally mounted on a first axis 33.
• the axis 33 is attached to an end portion 331 on the frame 13 of the device 1 and not rotatable itself.
• the frame elements 31, 32 are connected to one another via a web guide roller 34, over which the material web 2 is guided during operation of the device 1.
• a further axis 35 also connects the frame members 31, 32 and extends parallel to the axis 33 and the web guide roller 34. Both the axis 35 and the web guide roller 34 are hinged to the frame members 31, 32 with ball bearings 36. The axis 35 and the web guide roller 34 can thus not only rotate about their respective extension axes, but are also tiltable relative to the frame members 31, 32.
• the axis 35 is also connected by means of a fixing element 37 with the axis 33.
• the fixing element 37 consists of two halves 371, 372, which can be fixed by means of screws 373 and 374 against each other and the respective receptacles 375, 376 for the axes 33, 35 have.
• the axis 35 is received with a sliding sleeve 38 in the fixing member 37, the inner diameter is preferably greater by 5% to 20%, more preferably by 10% to 12% greater than the outer diameter of the shaft 35.
• 376 and according to the tightening force of the screws 373, 374 can thus also be determined how firmly the fixing element 37 sits on the axes 33, 35.
• the fixing member 37 can be moved on the axes 33, 35.
• the figures show the fixing element 37 in a lateral position.
• the frame elements 31, 32 can pivot about the axis 33 and move relative to their axis Fig. 4 shown balance position are deflected.
• the axis 35 and the web guide roller 34 can follow this movement and thereby tilted due to their storage by means of the ball bearings 36 obliquely to the axis 33 and thus also obliquely to the original web guide plane.
• the web guide roller 34 can follow the asymmetrical forces caused by an obliquely inserted material web 3.
• the web guide roller 34 is thereby further deflected until the on their End regions acting forces are the same again, so no more moment is transferred to the fixing member 37.
• the faster-running side edge of the material web 2 is braked and accelerates the slower-running side edge of the material web 2.
• Material web 2 is thus corrected and the material web 2 runs evenly through the device 1.
• the web guide roller 34 returns to the neutral position shown in FIG. 4 and remains in this, as long as the web 2 continues to run straight.

Landscapes

• Registering, Tensioning, Guiding Webs, And Rollers Therefor (AREA)
• Replacement Of Web Rolls (AREA)
• Preliminary Treatment Of Fibers (AREA)

Priority Applications (9)

Applications Claiming Priority (2)

Publications (1)

Family

ID=53783685

Family Applications (1)

Country Status (13)

Families Citing this family (2)

Citations (4)

Family Cites Families (12)

• 2014
  • 2014-08-07 DE DE102014111312.8A patent/DE102014111312B3/de not_active Expired - Fee Related
• 2015
  • 2015-07-23 US US15/500,715 patent/US10294056B2/en active Active
  • 2015-07-23 JP JP2017506840A patent/JP6728537B2/ja not_active Expired - Fee Related
  • 2015-07-23 DK DK15747405T patent/DK3177554T3/da active
  • 2015-07-23 WO PCT/EP2015/066941 patent/WO2016020206A1/de not_active Ceased
  • 2015-07-23 KR KR1020177004212A patent/KR102442926B1/ko active Active
  • 2015-07-23 PT PT157474057T patent/PT3177554T/pt unknown
  • 2015-07-23 PL PL15747405T patent/PL3177554T3/pl unknown
  • 2015-07-23 HU HUE15747405A patent/HUE046162T2/hu unknown
  • 2015-07-23 MX MX2017001251A patent/MX382685B/es unknown
  • 2015-07-23 ES ES15747405T patent/ES2748681T3/es active Active
  • 2015-07-23 CN CN201580042338.6A patent/CN106660731B/zh not_active Expired - Fee Related
  • 2015-07-23 EP EP15747405.7A patent/EP3177554B1/de active Active

Patent Citations (4)

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