WO2007115712A1 - Combing machine comprising a rotating circular comb - Google Patents

Abstract

The invention relates to a combing machine comprising a rotating circular comb, in which in the initial region (12) of the combing field (3), the enveloping line (H) running over the tips of the combing needles (5) dips in relation to the following region of the outer line that is coaxial with the rotational axis of the circular comb.

Description

Combing machine with rotating circular comb

Technical area

The invention relates to a combing machine with rotating circular comb.

State of the art

In combing machines with a rotating circular comb, the tuft to be combed out is held by the mouth of the tongs apparatus to the combing area of the circular comb. The round comb rotates under the tuft and grabs the needles of its comb strips.

The replenished fiber tuft contains many tangled fibers, which are heavily loaded by the intervention of the needles. Accordingly, this is the risk of damage to shortening large.

It is therefore known to occupy the Kämmfeld a round comb with comb strips or needle bars different needle density, while sitting the coarser needle bars, so with fewer numbers of needles per centimeter in the front of the Kämmfeldes, the increasingly finer needle bars in the rear. This requires different needle bars, ie needle bars with different numbers of needles j e centimeter.

General description of the invention

The object of the invention has been found to avoid this and to be able to use uniform needle bars. It solves this problem by reducing the engagement of the comb strips or needle bars in the initial area of Kämmfeldes to protect the fibers in the still tangled tuft thereby reduced that the needle bars are set lower or equipped with shorter needles.

Specific description of the invention

In the drawing, an embodiment of the invention is shown schematically. It shows the front view of a circular ridge with the envelope line over the tips of the combing needles.

The circumferential in the arrow direction circular comb 1 is mounted on a shaft 2 and carries on a part of its circumference a Kämmfeld 3. In this Kämmfeld a larger number of comb strips or needle bars 4 is arranged, which are occupied by needles 5. In the back of the needle field, the needle bars are indicated only by their center lines. The manner of attachment of the needle bars on the circular comb is irrelevant to the present invention and therefore not shown and explained in detail. Saurer GmbH & Co. KG Z 0605 WO

The circular comb 1 is a pliers apparatus 6 is delivered, in which a pair of rollers 7 a fiber wadding 8 a pliers 9/10 supplies. When the pliers are closed, the fiber tuft 11 projecting out of it is held up by the needles 5 of the needle bars 4 and combed out by the rotating circular comb.

A fiber tuft 11, which has been pushed on when the tongs 9/10 are open, contains many fibers that are still tangled and anchored in it. In order not to expose these fibers immediately to the coarse engagement of the first needle bars 4 of Kämmfeldes, these first example. Five needle bars in an initial region 12 of the Kämmfeldes 3 set back so far that the H envelope over the tips of the needles 5 of these needle bars to the Dimension h lowers approximately to the circumference of the circular comb 1. This ensures that the engagement of these needle bars is gentle and the confused fibers are given the opportunity to insert themselves into the gaps between the needles without running the risk of being torn off.

It is understood that more than about five needle bars 4 can be reset and that the amount h of their setting back can be less or greater. The set back is achieved in that the support surface 13 of the circular comb 1, on which the needle bars 4 sit, is lowered in the initial region 12 of the Kämmfeldes 3 according to a measure h.

Alternatively, it can be provided that instead of a set back uniformly trained

Needle bars in the initial region 12 of Kämmfeldes 3 and needle bars lesser height can be used, which then stand on the same amount remaining support surface 13 of the circular comb. In order to achieve these needle bars with lesser height, needle bars 4 can be equipped with shorter needles with the same height of their web 14 or equal long needles 5 are soldered to webs of lesser height.

The object of the present invention results not only from the subject matter of the individual claims, but also from the combination of the individual claims with each other.

All information and features disclosed in the documents, in particular the spatial design shown in the drawings, are claimed to be essential to the invention.

LIST OF REFERENCE NUMBERS

1 round comb 2 shaft

3 combing field

4 comb strips, needle bars Saurer GmbH & Co. KG Z 0605 WO

5 needles

6 forceps apparatus

7 feed roller pair

8 fiber wadding

9, lO pliers mouth 11 tuft

Claims

Saurer GmbH & Co. KG Z 0605 WOPatentansprüche 1. combing machine with at least one rotating circular comb and at least one Kämmfeld with at least one comb strip, characterized in that in an initial region (12) of the Kämmfeldes (3) the Hülllinie (H) over the tips of the Kämmnadeln (5) with respect to the following, to Rotary axis of the circular comb (1) is lowered coaxial portion of the envelope line. 2. combing machine according to claim 1, characterized in that the comb strip (4) in the initial region (12) of Kämmfeldes (3) is set lower. 3. Combing machine according to claim 1, characterized in that the comb strip (4) in the initial region (12) of Kämmfeldes (3) with shorter Kämmnadeln (5) is occupied. 4. Combing machine according to claim 1, characterized in that the comb strip (4) in the initial region of Kämmfeldes (3) has a lower height of its web (13) than in the other areas. 5. circular comb for a combing machine with at least one Kämmfeld (3) or at least one comb strip (4) according to one of the preceding claims.