JPS6335857A - Method and apparatus for removing refuse sliver of loom - Google Patents

Abstract

(57) [Abstract] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION (Industrial Application Field) The present invention involves winding up waste sliver produced by cutting the false selvedge of fabric during the weaving process.

The present invention relates to a method and apparatus for removing.

PRIOR ART Currently, slivers cut from the side edges of fabric are removed by various means. For example, the sliver is gripped between two gears or roughened wheels rotating at a constant speed, picked up and then dropped onto the floor or into a can. Generally, a loom has one such set of wheels for each sliver. In this type of device, the tension in the sliver is not quite constant or unbalanced and cannot be controlled, leading to cutting of the sliver and stopping of the loom for reasons not necessarily specifically related to the weaving mechanism. result.

In order to eliminate these undesirable stoppages and thereby increase the productivity of the loom, the present invention provides a method and apparatus for automatically balancing the tension in the sliver.

SUMMARY OF THE INVENTION The present invention consists of the steps of spirally winding a sliver and releasing it. A method for removing waste sliver produced by cutting selvedges, in which the sliver is wound into one cord at the same time, and the cord is false-twisted to automatically adjust the tension of the different slivers. The invention also provides a method characterized in that: 0. A weft discharge type winder whose periphery changes along the generatrix, a bobbin braking device, and 9. The cord is placed on the winder at the side of the maximum diameter part of the winder, and a false twist is applied to the cord. It consists of a combination of a drive rotary cord supply duct and a rotary cord supply duct. To provide a device for removing waste sliver produced by cutting selvedges.

EXAMPLES Other features of the invention will become more apparent to those skilled in the art from consideration of the following description and accompanying drawings.

The device of the invention mainly consists of supply ducts 2. Discharge winder 3
and a braking device 9.

Although not limited thereto, as illustrated in FIG. 1, the four-winder 3 is a bell-shaped bobbin or discharge reel having a convex region 3a and a substantially concave region 3b. It is composed of.

This facilitates the removal of the spiral sliver or cord that forms around the winder, as will be explained in more detail below.

Any other winder that functions similarly may be used. Other embodiments of the winder include two parts with different conical and cylindrical parts and according to the known approach in the weft release movement.

A bobbin may be mentioned which consists of a number of bottles or rods supported in an inclined manner with respect to a cylindrical portion by seven lunges.

The aforementioned discharge winder 3 is made of plastic material 1 and is rotatably mounted on a shaft 4, for example.

The supply duct 2 is 1, for example, a portion 2a of the supply duct is connected to the shaft 4.
It consists of a cylindrical body with a circular cross section, which is bent so that the other part 2b extends toward the periphery of the winder.

The outlet opening of the supply duct 2 is located opposite and outwardly from the largest circumference side of the two winders.

Furthermore, the supply duct 2 is driven into rotation by any suitable means, such as, for example, a gear-up mechanism 7 driven by the shaft of a fabric take-up roller (not shown).

The drive mechanism described above is not meant to be limiting in any way and may be used with any other device, whether or not co-velocated with the loom shaft.

The braking device 9 of the preferred embodiment of the invention comprises the ejection take-up 3
It consists of three rods 9a located on both sides of the machine and extending perpendicularly to the axis of rotation of the device, and these rods are adapted to hold the helical hood against the bobbin by means of springs 9b. (Illustrated in Figure 2). Of course, it is also possible to use different types of braking devices, for example magnetic ones.

During operation, the cord 1 formed by the two slivers 1a and 1b produced by cutting the selvedges on both sides of a piece of fabric is introduced into the inlet 6 of the supply duct 2 and the outlet 5 of the duct 2. It is then discharged from the winder 3 and wound up near the maximum peripheral edge of the winder 3.

The path between the cord and the cord turning section on the winder 9 is as follows:
It is shown schematically in FIG. 1 by broken lines.

Under the rotation of the feed duct 2, the cord 1 is subjected to false twisting, which has the effect of wrapping the slivers around each other. Then,
The cord 1 is continuously wound around a winder 3 in a thinly wound shape. Due to the effect of the conical or pointed shape of the section 3b of the winder 3, this continuous helical hood slides in a manner known per se towards the smallest circumferential area 3a of the winder and then at least one layer of the helix. is located above it. This spiral layer is held in place by a braking device 9 and is automatically discharged in a manner known per se into a collection can 8 on the side of the smallest circumferential edge of the winder.

The braking device also has the function of determining the tension developed in the cord 1. in this way. When one of the two slivers has less tension than the other sliver 1a, the sliver 1b is wound around the sliver 1a to compensate for the difference in length, and the tension of the two slivers is be equivalent.

Thus, during operation, the tensions of the two slivers are automatically balanced and the risk of breakage due to braking is significantly reduced.

The performance of the device according to the invention is due to the fact that the false twisting of the cord is further advanced and the control is easier.

The rotational speed of the supply duct (2) increases in proportion to the rate at which it exceeds the rotational speed of the dough take-up roller.

Furthermore, the device of the invention has the advantage of starting automatically;
This is a novel feature not found in any conventional known device.

[Brief explanation of drawings]

FIG. 1 is a longitudinal sectional view of a device according to the present invention. FIG. 2 is a side view of the first winder and braking device. 2... Supply duct, 3... Discharge winder, 9... Braking device.

Claims (4)

[Claims] (1) A method for removing waste sliver produced by cutting a false weave selvedge, which consists of the steps of spirally winding the sliver and releasing it, at the same time as the sliver is being wound. A method characterized in that the tensions of the different slivers are automatically balanced by being formed into one cord and false-twisting the cord. (2) A weft discharge type winder whose peripheral edge changes along the generatrix, a bobbin braking device, and the above-mentioned cord arranged on the winder on the side of the maximum diameter part of the winder, and the cord is temporarily attached to the winder. A device for removing waste sliver resulting from cutting of false fabric selvedges, in combination with a driving rotary cord supply duct adapted to impart twisting. (3) The device of claim (2), wherein the bobbin has a concave area and a convex area. (4) The braking device is elastically abutted against the bobbin 2
The device according to claim (2), consisting of a book stick.