Classifications

• • D—TEXTILES; PAPER
  • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
  • D01G—PRELIMINARY TREATMENT OF FIBRES, e.g. FOR SPINNING
  • D01G19/00—Combing machines
  • D01G19/06—Details
  • D01G19/10—Construction, mounting, or operating features of combing elements
  • D01G19/105—Combing cylinders

Definitions

• the invention relates to a combing cylinder for a Combing machine according to the preamble of claim 1.
• Combing machines are used to comb out fibers puts.
• the individual fibers of the a pair of pliers held tuft parallel out aligns and removes impurities and fiber nodules far away.
• the effective part of the combing machine is an on a cylinder body seated combing segment, whose Outer surface arranged in several rows of teeth or Has needles. These teeth or needles of the combing saw mentes grasp and comb the angelie with a pair of pliers ferten fiber beard. You can only see its effectiveness then fully unfold when the combing period begins on, i.e. from the point in time at which the beginning of the combing segment on the rotating cylinder at the opening tion of the pliers is reached, grasp the tuft. This condition is common, particularly at high speeds of the combing cylinder, not met, because the foremost needles or teeth grip the tuft only at a point in time when they are already back removed from the pliers.
• the object of the present invention was therefore to provide a Provide combing cylinder, the combing segment during the is fully effective throughout the combing period, i.e. the Fiber tuft already captured when opening the pliers.
• the inventive design of the comb cylinder becomes the negative effect of moving air not just eliminated, but through interaction the airfoil of the combing segment with the air channel between the inner surface of the combing segment and the cylinder outer surface is a suction effect to bring the Fiber beard generated at the beginning of the combing segment.
• the approach brings about an early grasp and on the other hand a better penetration of the fiber bartes through the teeth of the combing segment and therefore a more effective combing.
• the airflow acts like a second one at the free end of the fiber beard attacking, forceps holding the beard on the Teeth of the combing segment feeds.
• the arrangement of the - preferably on the end of the comb segment to - widening air duct between the combing segment with airfoil profile and cylinder body results in a sub on the outside of the combing segment pressure zone and on the inside, i.e. between combs segment and cylinder body, an overpressure zone.
• the Profile nose is used to minimize the influence a wrong angle of attack, preferably relatively thick trained, which is especially in unstable, compli ornamental flow conditions is advantageous. Although the flow resistance here is a relative one A thick profile nose plays a minor role with an increased flow resistance in the first place suitable for low speeds of the combing cylinder.
• the invention is further illustrated with reference to the figure light. It shows the side view purely schematically a combing device.
• the combing device has a combing cylinder 1 a cylinder body 2, which carries a combing segment 3, on.
• the comb segment is at its beginning 4 and on its end 5 with four (not shown) fastening supply flanges attached to the cylinder body 2. It shows a more curved exterior with 6 teeth surface 7 and a less curved, the jacket 9 of the Inner surface 8 facing cylinder body 2.
• the Inner surface 8 and the jacket 9 limit one another the end 5 of the combing segment 3 to be expanded air channel. These two surfaces 8,9 are smooth, to keep the frictional resistance as low as possible.
• the continuous, i.e. ge closed smooth outer surface by placing a thin film on the discontinuous outer surface be achieved.
• the size of the teeth 6 of the combseg mentes 3 takes from its beginning 4 to its end 5 to from.
• a top comb 17 arranged, followed by a pair of tear-off rollers 18.
• This tuft is made by the Suction effect of the combing cylinder 2 according to the invention the approaching, clockwise rotating combing saw ment 3 brought up, where it is captured by the teeth 6 and is combed through. Thereafter, the top comb 17 and lowers the pair of tear-off rollers 18 grips the tuft 13, pulls it out of the open pliers 12 and tears it from. The uncombed end of the tuft is on Top comb 17 combed out.
• the combing segment teeth of the same size over its length in the manner of a Carry card topping.
• the outer, upper profile line of the combing segment an arc of a circle and the design of the wing profile takes place alone through the inner (lower) profile line.
• the latter is in in any case less curved than the outer profile line and can even be a straight line.
• am A spoiler can be arranged at the end of the combing segment.
• the inventive combing cylinder is the Effectiveness of the combing process even at high speeds skills improved or working with increased Speed while maintaining at low Speeds achieved combing effect allows.

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• Engineering & Computer Science (AREA)
• Textile Engineering (AREA)
• Preliminary Treatment Of Fibers (AREA)

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Citations (3)

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• 1987
  • 1987-04-15 CH CH1466/87A patent/CH673290A5/de not_active IP Right Cessation
• 1988
  • 1988-04-08 EP EP19880105657 patent/EP0286993A3/de not_active Withdrawn
  • 1988-04-11 JP JP63088862A patent/JPS63270815A/ja active Pending
  • 1988-04-14 US US07/181,488 patent/US4896401A/en not_active Expired - Fee Related

Patent Citations (3)

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