US3533543A - Device for maintaining a predetermined tension in a web or warp guided over rollers - Google Patents

Device for maintaining a predetermined tension in a web or warp guided over rollers Download PDF

Info

Publication number
US3533543A
US3533543A US683693A US3533543DA US3533543A US 3533543 A US3533543 A US 3533543A US 683693 A US683693 A US 683693A US 3533543D A US3533543D A US 3533543DA US 3533543 A US3533543 A US 3533543A
Authority
US
United States
Prior art keywords
warp
web
compensating roller
tension
maintaining
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.)
Expired - Lifetime
Application number
US683693A
Other languages
English (en)
Inventor
Max Wenger
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.)
Benninger AG Maschinenfabrik
Original Assignee
Benninger AG Maschinenfabrik
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 Benninger AG Maschinenfabrik filed Critical Benninger AG Maschinenfabrik
Application granted granted Critical
Publication of US3533543A publication Critical patent/US3533543A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

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
    • B65H23/18—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
    • B65H23/1888—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 and controlling web tension
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06B—TREATING TEXTILE MATERIALS USING LIQUIDS, GASES OR VAPOURS
    • D06B3/00—Passing of textile materials through liquids, gases or vapours to effect treatment, e.g. washing, dyeing, bleaching, sizing, impregnating
    • D06B3/34—Driving arrangements of machines or apparatus
    • D06B3/345—Means for controlling the tension in the textile material

Definitions

  • the tension of a warp or of a web is of great importance.
  • the warp tension may be decisive for the efliciency of the loom.
  • the Warp is previously sized, whereby, in the drying zone of the sizing machine, important variations of length either in the sense of an elongation or in the sense of a shrinking may occur, the meticulous maintaining of a constant warp tension is required.
  • This requires precise and reliable operating control means.
  • Such control means are present in most of the machines and, according to their technical construction, they also operate more or less correctly.
  • compensating rollers For example, it is known, for the purpose of regulating the different drives of sizing machines, to make use of compensating rollers. These rollers, on the one hand, impart to the warp to be sized a determined tension and, on the other hand, compensate elongations or shrinkings of the warp.
  • the tension is produced, for example, by compensating rollers that are loaded by weights, springs or also pneumatically. Elongations or shrinkings are, in some instances, only signalled by the compensating rollers and must then be corrected by hand.
  • the deviations of the compensating roller as a result of an elongation or shrinking of the warp are used to regulate driving means electrically or mechanically in such a manner that the synchronism of the dilferent drives is restored.
  • the inventive device for maintaining a predetermined tension in a web or warp guided over rollers of the type comprising at least a compensating roller the deflections of which out of a predetermined position control a regulating mechanism, is provided with means operated upon a stop of the treated Web or warp to interrupt the control of the regulating mechanism by the web or warp as long as the latter stands still.
  • Another, more specific operative advantage of the invention pertains to an arrangement in which the deflections of a compensating roller by means of an arm, pivot a shaft, the angular displacement of which controls the regulating mechanism in such manner that the pendulum axle of the compensating roller carries an arm supporting a tooth segment producing the control of the regulating mechanism.
  • Means are provided for fixedly securing the tooth segment to the arm when the web is running and to release the tooth segment from the arm movements when the web stands still.
  • the regulating mechanism is controlled in the conventional manner by the deflections of the compensating roller, which are transmitted to the tooth segment over the said arm.
  • the motion transmission from the compensating roller to the regulating mechanism by the tooth segment, now no longer moved with the arm, is interrupted.
  • FIG. 1 diagrammatically illustrates a sizing machine and the guiding of a Warp through said machine
  • FIGS. 2 and 3 illustrate, at enlarged scale and partly in section, the members serving to control a regulating mechanism by the deflections of a compensating roller, and
  • FIG. 4 shows the members serving to load a compensating roller in order to maintain a predetermined tension in a web guided over said roller.
  • the warp K is tensioned by a compensating roller 4'.
  • the warp K is tensioned by a compensating roller 4.
  • the associated mechanism is identical for each of the compensating rollers of a regulating path so that in the following only one of such mechanisms shall be explained in more detail.
  • the compensating roller 4 rotates in an eye 18a of an arm 18 of a twin lever 18, 18b, the pivoting axle of which coincides with the pendulum axle 6, with which the lever 18, 18b is connected for rotation and which is rotatably arranged in bearings 6a, 6b.
  • a counterweight 20 is suspended from the end of arm 18b of the twin lever, serving to precisely balance the compensating roller system.
  • the loading of the compensating roller 4 is effected pneumatically by means of a cylinder 22, the piston 22b of which is articulated by means of its piston rod to the free end of a lever 21 connected for rotation with the pendulum axle 6.
  • the loading of the piston 22b is effected through a connection 22a of cylinder 22 by means of a conduit 41.
  • the pressure may be adjusted by hand at a reduction valve 35 and may be checked on a manometer 36.
  • the desired tension of the Warp K guided about the compensating roller 4 results from the load of the warp K depending on the pressure adjusted at the reduction valve 35 and transmitted by the piston 22b, the piston rod thereof, the lever 21, the pendulum axle 6, and the arm 18 in direction of arrow 39.
  • the compensating rollers 4 should not only serve to impart to the warp a determined tension, but in addition, they should maintain such tension independent of all shrinkings and elongations of the warp during the drying process. If, necessary, they should compensate such i deviations from a desired tension by means of regulating members not only in operation of the machine but also, and particularly, at interruptions of such operation of the machine with the warp drawn-in.
  • FIGS. 2 and 3 At both sides of the machine a plate 7 is connected for rotation with each of the two pendulum axles 6. Each of these plates 7 carries a pneumatical cylinder 8. A piston 9 sliding in said cylinder 8 may be loaded in direction of arrow 16 by compressed air supplied through a conduit 42 (FIG. 2) connected to the cylinder. A spring 11 acting in the opposite direction onto the piston 9 holds the latter in a rest position near the connection 8a when the conduit 42 is pressureless.
  • the outer end of the piston rod 13 of piston 9 carries a head piece 12, to which is secured a bolt 12a guided in longitudinal direction in a slot 7a of plate 7.
  • the head piece 12 serves in addition to secure links 13a and 13b, which are each secured to a segment 14a and 14b respectively, arranged for free rotation on the pendulum axle 6.
  • Both segments 14a, 14b form, as is best seen from FIG. 2, a scissors acting onto two bolts 15a, 15b projecting from a tooth segment 16.
  • the latter as are the segments 14a, 14b, is arranged for free rotation on the pendulum axle 6.
  • the tooth segment 16 meshes with a pinion 23 mounted on a shaft 24 arranged for rotation in bearings 25.
  • the shaft 24 further carries a chain wheel 26 connected by means of a chain 27 and a further chain wheel 28 with a regulating mechanism 29a for a gear 29 which is of wellknown type and, for this reason, is not represented in more detail.
  • this gear connected with a motor 37, the latter drives a shaft 38 and, over this shaft, drives the rollers in the sizing trough 2 and/or one or several drums of the dryer 3.
  • the arrangement is such that the compensating roller 4' at the inlet of the dryer regulates a gear 29' driving the squeezing rollers 2a of the sizing trough 2.
  • the regulating mechanism 29a associated to each gear controls the rotational speed transmitted by the gear to the shaft 38. This control is effected in such manner that a lowering of the associated compensating roller as a result of an elongation of the warp adjusts the regulating mechanism in such manner that the speed transmitted from the gear to the shaft 38 is reduced.
  • FIG. 1 In the embodiment of FIG.
  • a throttle 40 connected into the pressure air supply to cylinder 8 insures that the reinstalled compressed air supply loads the piston 9 in a retarded manner so that the segments 14a, 14b close slowly and again secure the tooth segment 16, whereby the throttle 40 is adjusted in such manner that the regulating mechanism 29a may adjust itself in accordance with the position of the compensating roller.
  • a disk 30 mounted for rotation on shaft 24 by means of a wedge.
  • This disk 30 carries a friction lining 31.
  • the chain wheel 26 is mounted for free rotation on shaft 24 and carries a disk 32.
  • the disk 30 may be pressed with its friction lining 31 against disk 32 so as to transmit rotation of shaft 24 to the chain wheel 26.
  • the relative position of the chain wheel 25 and the pinion 23 may be modified and consequently, the rotational speed of gear 29 for a determined position of pinion 23.
  • the compensating roller may regulate the gear 29 through the regulating mechanism in one direction only but, in this direction, over the largest possible range.
  • the frictional connection through the friction lining 31 in addition has the advantage of providing safety against faulty manipulation.
  • the pneumatical operation of the scissors 14a, 1412 as described may, of course, be replaced by hydraulic, mechanical or electrical actuation effecting an opening of the scissors when the machine stops and a slow closing of the scissors when the machine is set into operation.
  • a device for maintaining a predetermined tension in a web or warp guided over rollers by means of at least a compensating roller, the deflections of which out of a predetermined position are transferred to a regulat ing mechanism to control the same the improvement comprising means for interrupting the transfer of said deflections to said regulating mechanism when the web or warp stands still.
  • a device for maintaining a predetermined tension in a web or warp guided over rollers by means of at least a compensating roller, the deflections of which out of a predetermined position are transferred to a regulating mechanism to control the same comprising means for interrupting the control of the regulating mechanism by the web or warp when the latter stands still, said improvement further comprising an arm connected with a pendulum axle, a compensating roller means the deflections of which pivot said pendulum axle, a regulating mechanism regulated by the angular movement of said pendulum axle, a tool segment means for producing the control of the regulating mechanism carried by said arm connected With said pendulum axle, and wherein means are provided for securing said tooth segment means to said arm when the Web is running and for releasing said securing when the web stands still.
  • said securing means comprises a scissors means pivotable with said arm for fixing in closed position by means of abutments said tooth segment means and for allowing in its open position free angular movement of said arm with said scissors means with respect to said tooth segment means.

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Treatment Of Fiber Materials (AREA)
US683693A 1966-11-22 1967-11-16 Device for maintaining a predetermined tension in a web or warp guided over rollers Expired - Lifetime US3533543A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH1679566A CH465539A (de) 1966-11-22 1966-11-22 Vorrichtung zur Aufrechterhaltung einer vorbestimmten Spannung in einer über Walzen geführten Gewebe- oder Kettbahn

Publications (1)

Publication Number Publication Date
US3533543A true US3533543A (en) 1970-10-13

Family

ID=4420278

Family Applications (1)

Application Number Title Priority Date Filing Date
US683693A Expired - Lifetime US3533543A (en) 1966-11-22 1967-11-16 Device for maintaining a predetermined tension in a web or warp guided over rollers

Country Status (5)

Country Link
US (1) US3533543A (de)
CH (1) CH465539A (de)
DE (1) DE1574398A1 (de)
FR (1) FR1547830A (de)
GB (1) GB1202311A (de)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5454151A (en) * 1993-07-21 1995-10-03 Karl Mayer Textilmaschinenfabrik Gmbh Arrangement for setting the tension of a thread
US20060143881A1 (en) * 2002-06-03 2006-07-06 Hunter Douglas Inc. Beam winding apparatus
US20110062206A1 (en) * 2008-05-20 2011-03-17 Khs Gmbh Roll or buffer storage for a flat web material

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107326590B (zh) * 2017-08-22 2023-05-30 恒天重工股份有限公司 一种适用于浆纱机的自动割纱装置

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2214609A (en) * 1939-04-25 1940-09-10 Westinghouse Electric & Mfg Co Torque amplifier for dancer field rheostats
US2544467A (en) * 1947-01-31 1951-03-06 Aluminum Co Of America Tension control system

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2214609A (en) * 1939-04-25 1940-09-10 Westinghouse Electric & Mfg Co Torque amplifier for dancer field rheostats
US2544467A (en) * 1947-01-31 1951-03-06 Aluminum Co Of America Tension control system

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5454151A (en) * 1993-07-21 1995-10-03 Karl Mayer Textilmaschinenfabrik Gmbh Arrangement for setting the tension of a thread
US20060143881A1 (en) * 2002-06-03 2006-07-06 Hunter Douglas Inc. Beam winding apparatus
US20060277732A1 (en) * 2002-06-03 2006-12-14 Hunter Douglas Inc. Beam winder with yarn shrink system
US20060277729A1 (en) * 2002-06-03 2006-12-14 Hunter Douglas Inc. Beam winding apparatus with beam switching turntable
US20070000108A1 (en) * 2002-06-03 2007-01-04 Hunter Douglas Inc. Method of setting up a beam winder
US7178211B2 (en) 2002-06-03 2007-02-20 Hunter Douglas Inc. Beam winding apparatus with beam switching turntable
US7181816B2 (en) 2002-06-03 2007-02-27 Hunter Douglas Inc. Beam winder with yarn shrink system
US7234213B2 (en) 2002-06-03 2007-06-26 Hunter Douglas Inc. Beam winding apparatus
US7234212B2 (en) * 2002-06-03 2007-06-26 Hunter Douglas Inc. Method of winding a beam
US7260873B2 (en) 2002-06-03 2007-08-28 Hunter Douglas Inc. Method of setting up a beam winder
US20110062206A1 (en) * 2008-05-20 2011-03-17 Khs Gmbh Roll or buffer storage for a flat web material
US8973801B2 (en) * 2008-05-20 2015-03-10 Khs Gmbh Roll or buffer storage for a flat web material

Also Published As

Publication number Publication date
FR1547830A (fr) 1968-11-29
GB1202311A (en) 1970-08-12
CH465539A (de) 1968-11-30
DE1574398A1 (de) 1971-06-24

Similar Documents

Publication Publication Date Title
US2343181A (en) Automatic tension control
US3533543A (en) Device for maintaining a predetermined tension in a web or warp guided over rollers
US2190529A (en) Apparatus for producing a uniform tension in winding devices
US1395830A (en) Automatic tension-controlling mechanism
US3329561A (en) Tension apparatus in the endless forming wire of a fourdrinier paper machine
US2375316A (en) Warp letoff device
US2586123A (en) Uniform strand tension device
US2143200A (en) Tension controlling device
US3466940A (en) Mechanism for tensioning endless belt-like members
US2734253A (en) Variable speed drive apparatus
US3567354A (en) Apparatus for controlling the warp tension in a weaving machine
US1941158A (en) Automatic brake for windlasses
US5299753A (en) Cloth takeup and method
US2834091A (en) Beam warping machine
US3061227A (en) Web tensioning device
US2637506A (en) Web tension control for printing presses
US4058143A (en) Constant tension regulator of positively unwound flexible material, particularly warp threads in weaving machines
US2927364A (en) Slashers
US2618945A (en) Warp yarn feed device
US3417791A (en) Warp beam take-off drive
US1952913A (en) Web tensioning means
US2708456A (en) Tension controlling means
US2371620A (en) Device for controlling the tension in the yarns being wound upon a beam in a warping or beaming plant
US2375459A (en) Tension device
US3860044A (en) Warp tension control mechanism