CN101619511A - Feeding device - Google Patents

Abstract

The present invention relates to a feed roller for a wool textile machine, wherein fibers are fed into a roller in an axial direction of an output roller. The invention is characterized in that a fraction of the fibers is returned to a fiber source from the roller and is then blown back to the roller, without having to pass through an opening.

Description

Pay-off

Technical field

The present invention relates to a kind of pay-off.

Background technology

The 40 for many years known feed rolls that have the multiple textile industry that is used for napping machine or combing machine for fur to use.These machines offer combing machine for fur or napping machine with a kind of fiber pad.

The known method of a kind of Rieter AG company is made of a plurality of simple rods, and its 90 outlet roller (Abzugswalzen) direction of principal axis of spending in a plurality of rollers blows fiber-air mixture.These are failed to be received into fiber in some rollers and might be blown to as residue and collect in the tower and be transported to again in the circulation of a plurality of rollers by a pair of input roller subsequently.A plurality of feed rolls all do not have air filter screen.

For example implement a kind of method according to Truetzschler and Hergeth company, in the method, roller is divided into 2 parts, and fiber is stored in the upper rolls and by input roller and grooving roll from a common transfer pipeline that is used for a plurality of rollers and flows to lower roll.Has air filter screen in the upper rolls.Upper rolls blows on direction of principal axis.

At that time, the feasibility of control of sensor technology and control technology and speed and position intervention was all poor than present.

In napping machine, only be equipped with a roller that fiber is provided by the feed machine usually.The problem of the system of 2 rollers has obviously appearred only using in the machine of broad here.If the filter screen of upper rolls has filled up fiber, air velocity will descend and fiber no longer can blow to the end in contrast to inlet of roller.This problem is tangible in broad machine (for example more than the 3.5m).

If blow strongly, the material on the feed entrance point will seldom leave in the roller.If blow with very low speed, fiber will arrive the relative end of roller.In mixture of different fibers, highdensity fiber retention is at charging aperture, and more low-density fiber retention is to relative end.

Summary of the invention

The objective of the invention is to propose a kind of in a kind of feed rolls on width deposits uniformly.This will represent, the fiber that supplies on side direction in the roller will be discharged with respect to the unnecessary fiber on the side of charging aperture by discharging opening more than the fiber of extracting out from roller and roller.The amount of loopback fiber can be measured by the deepening of grating in backpass ductwork.This measurement will be considered when definite fiber is supplied with, so that prevent the obstruction of fiber circulation.

Description of drawings

Fig. 1 shows the present invention.

The specific embodiment

The fiber that comes from feed arrangement 1 flows to shedding motion 3 by feed roller 2 and is delivered in the air-flow 4, and this feed roller is determined the fibre weight supplied with by variable rotating speed.Air blast 6 direction of principal axis with roller on side direction is blown into fiber in the top 7 of roller 13 by conveyance conduit.On the less a plurality of positions of fiber filled amount, provide a bigger open cross section of pipeline, and air velocity descends.Fiber no longer can transport and rest on this position by lower air velocity.Excess fiber will arrive the outlet of roller 8 and sucked back in fiber feedway 10.Grating 9 moment deepening owing to the fiber that floats.The time of deepening is a criterion of fiber surplus.Fiber pad 15 is exported by at least one outlet roller 14.Fiber separation can come the air loop back device 12 of separation of air to improve by filtering net surface 11 with by filtering net surface.If filtering net surface is empty, then the there is less than resistance at delivery outlet 8 for the resistance of air, and air will arrive backpass ductworks 12 by lateral 12 easily.In this way, fiber rests on the position that does not also have fiber to a greater extent.

Claims (3)

1. feed rolls that is used for the wool textile machine, in described feed rolls, the axial direction with outlet roller in a roller blows fiber, it is characterized in that, the part of described fiber is led from described roller and is got back to fibre source and blow to described roller once more, but can not pass through an aperture position.

2. feed rolls according to claim 1 is characterized in that, the air that enters by filtering net surface and the air of loopback are in the same place with fibril aggregation.

3. feed rolls according to claim 1 and 2 is characterized in that, and is monitored in pipeline by the excess fiber amount of loopback.

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