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
  • B65H23/16—Registering, tensioning, smoothing or guiding webs longitudinally by weighted or spring-pressed movable bars or rollers
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
  • B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
  • B21C47/00—Winding-up, coiling or winding-off metal wire, metal band or other flexible metal material characterised by features relevant to metal processing only
  • B21C47/003—Regulation of tension or speed; Braking
• • 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
  • B65H23/18—Registering, tensioning, smoothing or guiding webs longitudinally by controlling or regulating the web-advancing mechanism, e.g. mechanism acting on the running web
  • B65H23/188—Registering, tensioning, smoothing or guiding webs longitudinally by controlling or regulating the web-advancing mechanism, e.g. mechanism acting on the running web in connection with 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
  • B65H2511/00—Dimensions; Position; Numbers; Identification; Occurrences
  • B65H2511/20—Location in space
  • B65H2511/21—Angle
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
  • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
  • B65H2701/00—Handled material; Storage means
  • B65H2701/10—Handled articles or webs
  • B65H2701/17—Nature of material
  • B65H2701/173—Metal

Definitions

• the invention relates to a device for compensating Werbergankungen and / or for adjusting the tension on a funded flexible metallic strand of material, in particular a metal strip, with at least one of the material strand umschlingbaren movable dancer roll.
• a dancer roll arrangement comprises a roll which is integrated into the strip course of a strip treatment plant and can be acted upon by a certain force, which forms a loop in the strip whose loop length coincides with the loop
• FIGS. 1 to 5 show typical dancer roller arrangements known from the prior art.
• the present invention seeks to provide a device for compensating Switzerlandschwankache and / or for adjusting the tension on a funded flexible metallic strand of material, in particular a
• Material band specify, which is very simple and thus can be integrated with little effort into existing treatment facilities for metallic material strands, especially metal bands. Furthermore, the device should compensate for short-term
• the object is achieved with a device according to the preamble of claim 1, characterized in that the at least one dancer roll along a path inclinable to the vertical path is displaceable, wherein the inclination angle of the web is adjustable by means of an adjustment.
• the present invention is based on the idea that by a suitable inclination of the direction of movement of the dancer to the vertical and thus the weight force vector of the dancer a precise adjustment of the web train without additional, the inertial mass of the arrangement increasing weights and without actuators is possible.
• wire or tape-shaped material tapes for transporting goods of various kinds, but also metal cables, wires and the like understood.
• Bands can be increased according to the inclination angle up to near 90 °, so that the weight of the dancer roll and their storage has virtually no influence on the Strangzug and this is correspondingly minimal.
• the respective effective tensile force can be determined with a simple trigonometric equation from the weight of the dancer roll and its storage. It corresponds to the slope force on an inclined plane and is calculated to
• Angle of inclination of the web formed controllable i. a change in inclination can be triggered by a corresponding control command in the automated operation of a treatment plant for the metallic material strands, in particular a strip processing plant. This is particularly advantageous if, during continuous operation of the treatment plant, a change in the material strand takes place, the ends of both strands being stapled to one another.
• the dancer roll between two pulleys is arranged so in operation, the flexible metallic strand of material forms a band loop together with the dancer roll.
• the dancer roll displaceable on a path which can be tilted to the vertical according to the invention its wrap angle is relatively constant both during the dancer movement along the inclinable path and during the adjustment of the inclination angle can be held, so that the forces exerted on the material strand tensile forces are precisely controlled at any time.
• the inclinable to the vertical path is linear.
• a strictly linear trained train such as a
• Inclination angle of the train preset value corresponds. This can be realized constructively, for example, by the bearing of the dancer roller being guided essentially without friction on a linear guide.
• Linear motion guides are particularly suitable for this purpose.
• Structurally different linear guides can also be used as "linear guides", for example roller guides and rail guides of all kinds, as well as sliding guides or also air cushion guides or magnetic guides
• Dancer roll be guided in a linear slot or in a gap between two mutually parallel carriers.
• the adjusting unit may comprise an electromechanical drive, in particular a spindle drive, or an actuator, in particular a hydraulically or pneumatically operated cylinder, so that the linear guide for adjusting the inclination angle of the web is pivotable about a pivot point.
• an electromechanical drive in particular a spindle drive
• an actuator in particular a hydraulically or pneumatically operated cylinder
• the path inclinable to the vertical can be curved, in particular curved in a circular arc, the radius of curvature being large in relation to the arc
• this variant can be realized by using a rocker on which the bearing of the
• the pivot point of the rocker for adjusting the inclination angle of the web on which the dancer roll is displaced is displaced.
• the adjusting unit may comprise an actuator, so that the pivot point of the rocker along a linear, substantially vertically oriented trajectory is displaced.
• the adjustment unit may comprise an actuator whose kinematics make it possible for the pivot point of the rocker, at the end of which the dancer roll is arranged, to be displaced along a curved, substantially vertically oriented path curve. This trajectory can be predetermined by a further rocker, on which the pivot point is pivotally mounted.
• the dancer roller When using the dancer roller to adjust the web tension in very heavy flexible metallic material strands that require corresponding tensile forces, it may be appropriate to displace the at least one dancer roll along the path inclinable to the vertical by the action of an actuator, in particular a hydraulic or pneumatic cylinder , This opens up the possibility, in addition to the force generated by the dancer roll itself, i. the downgrade force on the tiltable track to generate another force that increases the train. It makes sense to use the actuator when a vanishing tilt angle is selected, i. E. the full weight force acts on the flexible metallic strand of material.
• an actuator in particular a hydraulic or pneumatic cylinder
• Another aspect of the present invention relates to a treatment plant for sheet-like metallic material with a device for adjusting the tension and / or for compensation of tension fluctuations in the web-shaped material according to one of claims 1 to 10.
• the above-mentioned object is procedurally achieved with a method for operating a treatment plant for flexible metallic material strands, in particular metal strips, with a device for adjusting the tension and / or compensation of tension fluctuations in the material strand according to one of claims 1 to 11, characterized in that when changing the material strand during operation of the treatment plant, the adjustment of the tension by adjusting the inclination angle of the web by means of the adjustment takes place.
• the decisive advantage of the method is that due to the possibility of adjusting the tension during operation of the treatment plant no risk of damage to sensitive material strands due to excessive tensile forces, as in a change from heavy, durable material strands on lighter sensitive strands during operation always an optimal strip tension is set.
• an optimal strip tension is set.
• Fig. 1 is a known from the prior art
• Fig. 2 is a second known from the prior art
• FIG. 3 shows the dancer roller assembly of FIG. 1 with a counterweight
• FIG. 4 shows the dancer roller arrangement from FIG. 2 with a counterweight
• FIG. 5 shows the dancer roller arrangement from FIG. 2 with an actuator
• Fig. 6 shows a device for compensation of
• FIG. 7 shows the device from FIG. 6 with an actuator for increasing the tension
• Fig. 8 shows a device for compensating Wegschwankungen and for adjusting the tension on web material in a second embodiment
• 9 shows a treatment system for metallic belts with a device for adjusting the tension and for compensation of tension fluctuations according to FIG. 6.
• FIG. 1 shows a dancer roller arrangement known from the prior art with a dancer roller 100 arranged between two deflection rollers 110, 120.
• the belt M in this case a metal belt, which is guided essentially horizontally in a belt treatment system (not shown in detail) is replaced by the deflection roller 110 deflected downwards from the horizontal direction in the vertical direction, the dancer roll 100 wraps around with a wrap angle in the range of 180 ° and is then led up to the vertical slightly inclined to the second guide roller 120, where it is deflected in the horizontal direction.
• the dancer roller 100 can be displaced on a vertically oriented linear guide 130, so that approximately the entire weight force of the dancer roller 100 and its bearing 110a acts on the metal band M. This can lead to unacceptably high belt tension, especially for thin and correspondingly sensitive metal bands.
• a further known from the prior art solution is shown.
• the force acting on the metal strip M weight of the dancer roller 100 and its storage on the linear guide 130 is compensated by a counterweight 140, wherein the counterweight 140 may be selected such that the resulting acting on the metal strip M tensile force corresponds to the desired value.
• the problem with this arrangement is that the inertia of the dancer roller assembly is increased accordingly by the counterweight, so that in the compensatory movements of the dancer roller 100 the
• Fig. 4 shows the dancer roller assembly of Fig. 2, here the rocker 230 'is extended beyond the pivot point 240 addition, and a weight 250 along the rocker 230' is displaced so that it by the weight of the dancer roll on the band M exerted tensile force by a corresponding counter-torque increased or attenuated.
• Fig. 5 shows again the dancer roller assembly of Fig. 2, in which case an actuator 260 in the form of a hydraulic or pneumatic cylinder engages the rocker 230 and thus in analogous to Fig. 4 way to the tape M through the dancer roll 200 exerted or exerted weaker tape tensile force.
• an actuator 260 in the form of a hydraulic or pneumatic cylinder engages the rocker 230 and thus in analogous to Fig. 4 way to the tape M through the dancer roll 200 exerted or exerted weaker tape tensile force.
• Fig. 6 is a device for compensating Switzerlandschwankept and for adjusting the tension on web material present a metal strip M - shown with a displaceable along a tiltable path to the vertical dancer roller 2 in a first embodiment.
• the metal strip M is guided for this purpose around a deflection roller 3 and then forms with the dancer roll 2 a
• the inclinable path of the device of FIG. 6 is presently designed as a linear guide 4, on which the dancer roller can be moved substantially without friction by means of a subframe 2 a, on which the bearing blocks of the dancer roller are arranged.
• the linear guide 4 can be pivoted to adjust the inclination angle ⁇ about a pivot point X by means not shown in detail, an electromechanical drive, in particular a spindle drive, comprehensive adjustment.
• G is the weight of the dancer roller 2 and its bearing and ⁇ is the inclination angle of the linear guide 4.
• the adjusting unit is designed to be controllable. This means that when changing the strip thickness or - width - here are the ends of different thicknesses or broad bands stapled together - on a control command of the general machine control out the appropriate adjustment of the strip tension by changing the inclination of the linear guide 4 during operation of a strip processing plant (see Fig. 9) can take place.
• the device from FIG. 6 is additionally provided with an actuator in the form of a pneumatic cylinder 5.
• an actuator in the form of a pneumatic cylinder 5.
• FIG. 8 shows a further device for compensating for tension fluctuations and / or for adjusting the tension on a metal strip in a second embodiment.
• This differs from that of FIG. 6 in that the dancer roller 2 can not be moved along a linear unit without friction, but is suspended on a rocker 6 whose length is chosen to be large compared to the adjustment range of the dancer roller 2, so that the deflections of the dancer roller 2 in the operation of the device to a good approximation are linear.
• Radius of curvature and dancer roll deflection is approximately> 3: 1.
• the inclination to the vertical of this quasi linearly deflectable dancer roll 2 can now be adjusted again to exert the desired strip tension on the metal strip M.
• the suspension of the rocker, i. their fulcrum, along a predetermined trajectory by means of an adjusting unit, not shown movable.
• Fig. 8 two differently set inclination angle ⁇ , ⁇ 'are shown.
• the subframe 6a of the rocker 6 is moved to a lower position A, which is a comparatively small angle ⁇ «30 ° equivalent.
• the subframe 6a of the rocker 6 is moved into an upper position B by means of an adjusting drive of the adjusting unit which corresponds to an enlarged angle ⁇ '' 50 °.
• the movement of the subframe ⁇ a can be effected by an electromechanical drive as well as by a hydraulically or pneumatically operating cylinder (both not shown in FIG. 8) of the adjusting unit.
• FIG. 9 shows a treatment system for metallic strips with a device according to FIG. 6.
• the metal strip M for example a copper or copper alloy strip
• the metal strip M is unwound from a first roll 10 and first passed through an oven 12, for example an annealing furnace.
• the band M is deflected on the roller 3 and forms with the dancer roller. 2 a loop, wherein the dancer roller 2 in the manner described in connection with FIG. 6 along a to the vertical by the angle ⁇ by means of a controllable by the general machine control adjustment unit (not shown) track is displaceable.
• the metal strip is deflected by a further roller 1 back into the horizontal and finally wound up by a second roller 10.
• the present treatment plant for metallic bands thus precise pre-adjustment of the strip tension and its controlled change is possible with changed operating parameters.
• Machine control a corresponding control command to the adjustment for the adjustment of the inclination angle ⁇ of the tiltable track, whereupon this adapts the inclination angle ⁇ accordingly, so that the dancer roller 2 always exerts an optimal strip tension on the metal strip M.

Landscapes

• Engineering & Computer Science (AREA)
• Mechanical Engineering (AREA)
• Registering, Tensioning, Guiding Webs, And Rollers Therefor (AREA)
• Controlling Rewinding, Feeding, Winding, Or Abnormalities Of Webs (AREA)
• Winding, Rewinding, Material Storage Devices (AREA)
• Heat Treatment Of Strip Materials And Filament Materials (AREA)

Priority Applications (4)

Applications Claiming Priority (2)

Publications (1)

Family

ID=41269141

Family Applications (1)

Country Status (6)

Cited By (2)

Families Citing this family (15)

Citations (6)

Family Cites Families (13)

• 2009
  • 2009-04-28 DE DE102009018914A patent/DE102009018914A1/de not_active Withdrawn
  • 2009-07-01 DE DE202009009097U patent/DE202009009097U1/de not_active Expired - Lifetime
• 2010
  • 2010-04-20 EP EP10719295.7A patent/EP2424689B1/de active Active
  • 2010-04-20 JP JP2012507680A patent/JP2012525261A/ja active Pending
  • 2010-04-20 CN CN2010800190966A patent/CN102413957A/zh active Pending
  • 2010-04-20 WO PCT/EP2010/055221 patent/WO2010124969A1/de active Application Filing
  • 2010-04-20 US US13/257,491 patent/US20120018564A1/en not_active Abandoned

Patent Citations (6)

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