Classifications

• • D—TEXTILES; PAPER
  • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
  • D01H—SPINNING OR TWISTING
  • D01H1/00—Spinning or twisting machines in which the product is wound-up continuously
  • D01H1/10—Spinning or twisting machines in which the product is wound-up continuously for imparting multiple twist, e.g. two-for-one twisting
• • D—TEXTILES; PAPER
  • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
  • D01H—SPINNING OR TWISTING
  • D01H1/00—Spinning or twisting machines in which the product is wound-up continuously
  • D01H1/003—Twisting machines in which twist is imparted from the supply packages, e.g. uptwist
• • D—TEXTILES; PAPER
  • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
  • D01H—SPINNING OR TWISTING
  • D01H1/00—Spinning or twisting machines in which the product is wound-up continuously
  • D01H1/14—Details
  • D01H1/20—Driving or stopping arrangements
  • D01H1/24—Driving or stopping arrangements for twisting or spinning arrangements, e.g. spindles
• • D—TEXTILES; PAPER
  • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
  • D01H—SPINNING OR TWISTING
  • D01H7/00—Spinning or twisting arrangements
  • D01H7/02—Spinning or twisting arrangements for imparting permanent twist
  • D01H7/86—Multiple-twist arrangements, e.g. two-for-one twisting devices ; Threading of yarn; Devices in hollow spindles for imparting false twist
  • D01H7/868—Yarn guiding means, e.g. guiding tubes

Definitions

• the associated mechanical engineering effort is disruptive for certain purposes of the twisting devices - cf. e.g. GBM 84 05 365.
• the object of the invention is to design a thread twisting device in such a way that with a single drive there is a fixed ratio between the thread delivery and the twisting spindle speed and the thread is twisted with a defined twist (twists per meter).
• the solution is achieved by pulling the thread coming from the supply spool essentially tension-free with partial or complete looping around a wheel concentric with the twisting device and from there by a thread guide attached eccentrically to the bobbin carrier, the concentric wheel and the eccentric thread guide on the one hand are attached to the twisting spindle and on the other hand are stationary. If the bobbin is also a twisted spindle, the concentric wheel is stationary. If de The bobbin is stationary, for example in the case of a wing or pot twisting device, or “floats”, as in the case of a double-wire twisting device, so the concentric wheel is attached to the rotating twisting spindle, ie pot or the like.
• the invention can be applied to single twist and double wire twist.
• the driving principle of the invention is based on the fact that the rotating part (spindle) of the twisting device receives its drive torque through the thread itself, by guiding the thread around a wheel concentric with the spindle axis, taking advantage of the fact that the concentric one Thread running out of the wheel is under a higher thread tension than the thread running towards the concentric wheel.
• the concentric drive wheel can sit at the entrance of the hollow spindle, so that the floating, i.e. stationary bobbin threads coming around the drive wheel and then guided into the spindle.
• the concentric wheel can also be arranged in a stationary manner at the outlet of the spindle and the eccentric thread guide can be arranged on the spindle.
• a drive for thread conveyance can be provided.
• the promotion of the thread also causes
• the spindle can also be driven. In this case, the rotation of the spindle simultaneously causes the thread to be conveyed.
• Figure 1 is a thread twisting device with single twist.
• Fig. 2 is a thread twisting device, optionally after
• a single twisting device is shown, with which a twisted thread 11 is produced from several individual threads.
• a plurality of supply spools 1 are plugged onto the twist plate 3 in spool holders 2.
• the twisting plate 3 is rotatably supported by bearings 13 on the axis 8 of the stand 4.
• At the end of the shaft shaft 12 of the twister 3 there is an overflow thread guide 5 in the form of a circular disk.
• the threads are passed over this overflow plate and then to the thread guide 6.
• the individual threads are summarized in this thread guide 6.
• the combined thread is now wrapped around the central wheel 7 in one or more turns.
• the central wheel 7 sits at the end of the fixed axis 8.
• the thread center, which leaves the central wheel 7, is guided by the eccentric take-off thread guide.
• This take-off thread guide is also located on the rotatable twist plate 3. It is connected to it via the shaft 12 and an extension 18. At the end of the extension 18, the central thread guide 10 sits centrally to the twisting plate 3. The twisted thread is drawn off by this central thread guide. With 17 a delivery mechanism is indicated, which is driven by a drive motor. However, it must be mentioned that when using this twisting device as a hand-held device, the thread can also be pulled off by hand. In any case, the threading plate 3 is also rotated by conveying the thread by hand or with a conveyor 17. This is due to the fact that the tensile forces in the thread that runs to the central wheel are lower than the tensile forces of the running thread.
• Feed speed of the thread is.
• a different twist ratio can be set by choosing a central wheel with a different diameter. It is also possible to reverse the direction of rotation by changing the direction of wrap around the central wheel 7.
• the central wheel 7 is weakly conical or hyperbolic in the withdrawal direction. This ensures that the thread on the central wheel does not move in the axial direction.
• the twisting device according to FIG. 2 can be operated either according to the double wire twisting principle or according to the single twisting principle.
• the spindle 8 is rotatably supported in bearings 14.
• the central wheel 7 sits at the end of the spindle 8.
• the twist plate 3 with the shaft shaft 12 and the extension 18 is freely rotatably mounted on the spindle 8 in bearings 13.
• the twisting plate 3 is prevented from rotating by the fact that the spindle 8 is mounted inclined and that a weight 15 is fastened to the twisting plate 3. It should be mentioned that if the weight distribution of the twist plate is non-uniform, for example by appropriate design of the twist plate or by rotationally asymmetrical distribution of the supply spools 1, the weight 15 is left.
• the supply spools 1 are placed in the holders 2 on the twister 3.
• the threads of the supply spools are first passed over the circular disc-shaped drain thread guide 5 - if necessary - and then to the summarizing thread guide 6.
• the thread now summarized is wrapped around the central wheel 7 in several turns.
• the running thread is in the eccentric take-off thread guide , -. •
• the thread emerging from the spindle 8 is placed through the thread eye at the end of the rotating thread guide 21 and then guided to the central thread guide 10.
• the central thread guide 10 is fixed in place. It is important that it is centered on the spindle 8.
• the thread is drawn off by the indicated delivery mechanism 17.
• the delivery mechanism 17 is driven by a motor, not shown. -It should be mentioned that the conveyor 17 may also be missing when used as a hand twister.
• the thread receives two twists per revolution of the spindle 8.
• the number of twists is in a predetermined relationship to the conveying speed of the thread. This ratio depends on the diameter of the central wheel 7. Central wheels with a different diameter can therefore also be attached. The twisting direction can also be reversed. The effect is based in turn on the fact that the thread 7 running off the central wheel is under a higher tension than the incoming thread.
• the twisting ratio can also be changed, ie reduced, by using the device only as a single twister.
• a locking screw 22 is provided.
• the spindle 8 is prevented from rotating.
• the weight 15 is removed so that there is a symmetrical mass distribution on the twisting plate 3.
• the thread is threaded as indicated by the dashed line, ie the thread is guided from the eccentric take-off thread guide 9 directly to the central thread guide 10 and there - for example by Delivery plant 17 - deducted.
• the twist plate 3 is rotated.
• the thread receives one revolution per revolution of the twisting plate 3.
• the twisting direction can be reversed by changing the wrapping direction. Even now gradations in the twisting are possible by choosing central wheels 7 with a different diameter.
• the spindle 8 is rotatably supported in bearings 14.
• the twist plate with the shaft shaft 12 and the extension 18 is freely rotatably supported in bearings 13.
• the twisting plate 3 is prevented from rotating by the fact that the spindle 8 is mounted inclined and that a weight 15 is fastened to the twisting plate 3.
• the weight 15 can also be replaced by a pair of magnets, one of which is attached to the r
• the vo lay-up coils 1 are plugged onto the twist plate 3 in holders 2.
• the threads of the supply spools are first passed over the ring-shaped drain thread guide 5, which is attached to the extension 18 of the twisting plate 3 concentrically with the spindle 8. Now the threads are at
• This thread guide 21 encompasses the upper edge 23 of the central wheel 7, which is fixed in position and concentric with the spindle.
• the thread which comes from the outlet 20 of the spindle 8, is therefore guided in the axial direction around the thread guide 21 and from there onto the central wheel 7 .
• the central wheel is designed as a rotating body with a decreasing diameter.
• the thread is looped once or twice around the wheel and then guided onto the off-center thread guide 9.
• the off-center thread guide 9 0 is attached to the spindle 8 and attached so that the thread can be guided from this off-center thread guide 9 to the stationary central thread guide 10, which is fastened to the holder 24 centrally above the spindle 8.
• the thread is then drawn off by the conveyor 17.
• 5 can - which is not shown here - the
• the off-center thread guide 9 is attached in such a way that the thread is passed around the supply spools 1 and around the twisting plate 3 without any obstacle.

Landscapes

• Engineering & Computer Science (AREA)
• Mechanical Engineering (AREA)
• Textile Engineering (AREA)
• Spinning Or Twisting Of Yarns (AREA)

Applications Claiming Priority (4)

Publications (1)

Family

ID=25836495

Family Applications (1)

Country Status (5)

Families Citing this family (2)

Family Cites Families (5)

• 1986
  • 1986-09-22 EP EP86905792A patent/EP0241495A1/de not_active Withdrawn
  • 1986-09-22 WO PCT/EP1986/000553 patent/WO1987002077A1/de not_active Application Discontinuation
  • 1986-09-29 US US06/912,970 patent/US4769980A/en not_active Expired - Fee Related
• 1987
  • 1987-04-22 FI FI871758A patent/FI871758A/fi not_active IP Right Cessation
  • 1987-05-19 DK DK253287A patent/DK253287D0/da not_active Application Discontinuation

Non-Patent Citations (1)

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