Classifications

• • D—TEXTILES; PAPER
  • D03—WEAVING
  • D03D—WOVEN FABRICS; METHODS OF WEAVING; LOOMS
  • D03D49/00—Details or constructional features not specially adapted for looms of a particular type
  • D03D49/04—Control of the tension in warp or cloth
  • D03D49/06—Warp let-off mechanisms

Definitions

• the invention relates to a loom with a warp beam and a drive means, in particular a Kettbaumtechnikrad, therefor, wherein the warp beam a
• Kettbaumflansch and a detachable connection between the Kettbaumflansch and the drive means is provided.
• Kettbaumwelle and Kettbaumtechnikrad braced against each other, but this solution has the disadvantage of a complex construction. Another disadvantage arises from the axial displacement of the warp beam in relation to the driving pinion at each disconnection of the drive connection. This sliding connection between the drive pinion and Kettbaumtechnikrad requires a certain initial game in the
• the Applicant has already realized in weaving machines, the drive means e.g. screw in the form of a gear directly on the Kettbaumwelle or Kettbaumrohr and remove the gear at each Kettbaum cafe with the warp beam from the loom.
• the drive means e.g. screw in the form of a gear directly on the Kettbaumwelle or Kettbaumrohr and remove the gear at each Kettbaumcic with the warp beam from the loom.
• this complicates the further transport of the warp beam.
• the change of Kettbaumtechnikrades from the old to the new warp beam is in addition to the additional work and a further risk of injury to the operator when handling the loose, heavy Kettbaumtechnikrad.
• the invention is therefore an object of the invention to provide a loom of the type described, which has a compact, sturdy construction, a highly resilient and permanently play-free transmission of torque on the warp tree ensures and allows easy change of the large and heavy warp beam. Furthermore, the invention is intended to prevent personal injury and property damage as a result of operating errors during the warp beam change.
• the drive means preferably a warp gear, according to claims 1 and 5 by means of one or more screws connected to the warp beam, wherein the screws are to be operated through recesses in the frame wall. Holes and openings of any shape and size as well as lateral cuts in the frame wall are understood here as recesses.
• the screws are designed in number and dimensions so that a safe and backlash-free transmission of torque from the drive means is ensured on the Kettbaumflansch.
• the operation of the screws through the recesses in the frame wall allows a very close arrangement of the drive means to the frame wall and thus a compact design.
• the compact design saves to a space and on the other hand increases the stability of the drive. In particular, in high-speed looms so that the tendency to vibrate is advantageously minimized.
• the fixing and unscrewing of the warp beam can be done from the outside of the frame wall, which is much easier and safer than an operation from the inside.
• the drive means is mounted in a drive-side frame wall.
• About the drive means and the warp beam can be stored on the drive side in the frame wall, as long as it is bolted to the drive means.
• the described close arrangement is advantageous because with a small axial distance between the drive means and the bearing and the forces to be absorbed by the bearing are relatively low, especially if the drive means is unscrewed from the warp beam ,
• the drive-side engagement of the gears remains unchanged even when Kettbaum lymphosar.
• This allows close tolerances in the teeth, and the teeth are subject to low wear, which in turn ensures a permanent almost backlash-free transmission of torque even at this point.
• no complex manufacturing measures are necessary, which allow axial displacement of the gears against each other, but minimize the game in the circumferential direction.
• this is accommodated in an eccentrically arranged bore in the drive means, wherein the Kettbaumflansch is centered and fixed by at least one further, with the Kettbaumflansch and the drive means operatively connected element in the common axis of rotation.
• This element is e.g. a passport or a dowel pin.
• a support kettbaum mass on the drive means with this mitbedorfd arranged.
• the support may for example be designed as a pair of support bearings on which the warp beam is supported both during installation and removal, as long as it is not connected to the drive means.
• This intermediate storage facilitates, especially when installing the warp beam, the alignment of the threaded holes in the Kettbaumflansch on the holes in the drive means and then screwing the screws. Despite the high weight of the warp beam can be this rotate on rotatable support bearings with little effort. An additional intermediate storage device, for example in the form of a separate storage rack is thus no longer required.
• the markers may be both visually detectable markers and electronic markers which may be e.g. be detected by signals transmitted to a controller of the loom connected sensors.
• the sensors signal the controller when the drive means is in a suitable position for installation and removal of the warp beam.
• the controller may then provide the operator with e.g. Generate a corresponding display on a control panel.
• a mark to be visually detected is advantageously attached to the loom so that it is clearly recognizable from various positions when the drive means is in a suitable position for installation and removal of the warp beam.
• connection can be released and screwed only in an angular position of the drive element arranged around the common axis of rotation for the warp beam change.
• the appropriate angular position is again given by the arrangement of the support.
• a preferred possibility of this protection can be achieved by a drilling pattern with an asymmetrical arrangement of the through holes in the drive means, a corresponding arrangement of the recesses in the frame wall and by a small distance between the drive means and the frame wall.
• the recesses in the frame wall are designed, for example, as through holes which have only a slightly larger diameter than the screw heads, and if these through holes are arranged in the frame wall according to the same hole pattern as the holes in the drive means, the screws can only be screwed in and out when the drilling pattern in the drive means is in the angular position in which it is congruent with the drilling pattern in the frame wall. In this angular position, the support is in a position holding the warp beam.
• asymmetrical arrangement various types of asymmetry are understood here.
• holes that are arranged at different distances from the central axis of rotation and at different angles to each other are understood here.
• the described protection is advantageously realized by the screwing and unscrewing of the screw through the frame wall and the closely arranged drive means in and out of the Kettbaumflansch is preferably only possible if the Hole in the drive element is exactly opposite a correspondingly shaped recess in the frame wall.
• a further preferred embodiment of the invention provides that in the Kettbaumflansch more threaded holes are arranged as holes in the drive means.
• one or more screws are preferably designed as fitting screws.
• the head of the at least one screw is smaller than the recess in the frame wall.
• the drive means with the screws is arranged so close to the frame wall, that any screw not screwed with its screw head forcibly into the recess of the frame wall protrudes.
• any screw not screwed far enough protrudes into the corresponding recess to block any further rotational movement of the drive means in each case is on each screw operatively connected to the screw energy storage means, in particular a compression spring arranged.
• the compression spring pushes the screw against its screwing in the recesses of the frame wall.
• the compression spring is supported on a shoulder on the inner surface of the bore in the drive means.
• a securing element for example a securing ring.
• the securing element cooperates with an end limit provided on the drive means, for example a fitting bush arranged on the inner circumference of the respective bore in the drive means, and holds the at least one screw in a predetermined end position. Each unscrewed screw is thus pressed by the energy-storing means against the end limit and held in this predetermined position.
• Each screw is dimensioned to withstand the torque of a driving motor. This means that a screw not screwed in drives the drive
• Kettbaumes blocked characterized in that it is present on the inside of the respective recess in the frame wall.
• a preferably provided shutdown protection on the engine switches this at a
• Blocking off In this way, damage to the weaving machine and the product are avoided, which could otherwise result from operation with not screwed screws and only partially attached warp beam.
• Figure 1 a side view of the drive side of the warp beam
• Figure 2 is a view of the drive side of the warp beam with the drive elements
• Figure 3 a sectional view of the drive elements of the warp beam according to
• FIG. 4 shows a detail enlargement D from FIG. 3.
• 1 shows a side view of the drive side of the warp beam 2 with four screws 6 and four recesses 4.1 in the frame wall 4 is shown.
• a warp beam 2 is provided with a motor 7 driving the warp beam.
• the recesses 4.1 and the screws 6 are arranged according to an asymmetrical hole pattern. Through the recesses 4.1 in the frame wall 4 through the heads of the screws 6 can be seen in the drive means 3. In the illustrated angular position of the drive means 3, all screws 6 are screwed in and out. In any other angular position of the drive means 3, this is not possible, because then not all or no screws 6 can go in and out through the recesses 4.1 in the frame wall 4.
• the warp beam 2 consists essentially of a warp beam 2.1, a Kettbaumflansch 2.2 and arranged on the warp beam Kettbaumin 2.3, which as a lateral boundary for the not shown
• FIG. 2 further shows a motor 7 which is rigidly connected to a drive-side frame wall 4 and which drives a drive means 3 designed as a gear wheel via a motor pinion, not shown.
• the drive means 3 is screwed to the Kettbaumflansch 2.2, wherein the Kettbaumflansch 2.2 in turn is rigidly connected to the Kettbaumrohr 2.1.
• a support 8 is designed in the form of support bearings, which are fastened laterally on the drive means 3.
• the second support bearing is fixed at the same distance from the axis of rotation 5 behind the visible support bearing on the drive means 3.
• the two support bearings together form a support for the Kettbaumflansch 2.2.
• the warp beam 2 is in an installation and removal position, but not bolted to the drive means 3, it is held by the support 8.
• the intermediate storage on Stützlagem 8 is advantageous because the warp beam 2 can be rotated so with little effort around its axis of rotation and placed in a suitable angular position for screwing the screws 6.
• FIG 3 shows the assembled parts of the warp beam drive in a sectional view along CC in Figure 1.
• the drive means 3 is connected by screws 6 with the Kettbaumflansch 2.2.
• the Kettbaumflansch 2.2 is in this embodiment, a separately manufactured element which is rigidly bolted to the Kettbaumrohr 2.1.
• the drive means 3, the Kettbaumflansch 2.2 and the Kettbaumrohr 2.1 are arranged around the common axis of rotation 5.
• Figure 3 also shows the close, space-saving arrangement of the Kettbaumflansches 2.2, the drive means 3 and the frame wall 4 to each other, which is only possible through the recesses 4.1 in the frame wall for screwing and unscrewing the screws 6.
• FIG. 4 shows, in an enlarged detail, one of the screw connections between drive means 3 and warp beam flange 2.2.
• the warp beam 2 is rigidly connected to the drive means 3 and separated.
• each of the screws 6 is operatively connected via a arranged on the circumference of the screw shank compression spring 9 with the drive means 3.
• the compression spring 9 is supported on a shoulder 3.3 on the inner surface of the bore 3.1 and moves the screwed-in screw 6 against the screwing and thus further into the recess 4.1 of the frame wall 4 inside. So that the screw 6 is not completely pushed out of the compression spring 9 from the bore 3.1 in the drive means 3, it is secured by means of a securing ring 10.
• the arranged on the shank circumference of the screw 6 circlip 10 limits the displacement of the screw 6 by being supported against a fitting bushing 11 as the end limit, which is pressed into the bore 3.1 in the drive means 3.
• This arrangement of the locking ring 10 and the fitting bushing 11 also prevent the screw 6, which has not been screwed in, from falling out, e.g. through vibrations.

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• Engineering & Computer Science (AREA)
• Textile Engineering (AREA)
• Looms (AREA)

Priority Applications (4)

Applications Claiming Priority (2)

Publications (1)

Family

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Family Applications (1)

Country Status (8)

Families Citing this family (5)

Citations (2)

Family Cites Families (22)

• 2005
  • 2005-04-29 DE DE102005019906A patent/DE102005019906B3/de not_active Expired - Fee Related
• 2006
  • 2006-03-29 JP JP2008508065A patent/JP2008539335A/ja not_active Withdrawn
  • 2006-03-29 CN CNA2006800145470A patent/CN101166856A/zh active Pending
  • 2006-03-29 EP EP06722704A patent/EP1877610A1/de not_active Withdrawn
  • 2006-03-29 WO PCT/DE2006/000552 patent/WO2006116959A1/de active Application Filing
  • 2006-03-29 RU RU2007144196/12A patent/RU2007144196A/ru not_active Application Discontinuation
  • 2006-03-29 US US11/919,621 patent/US20080314472A1/en not_active Abandoned
  • 2006-03-29 BR BRPI0609901-7A patent/BRPI0609901A2/pt not_active IP Right Cessation

Patent Citations (2)

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