CN1754997A

CN1754997A - Device for weaving trimming of fabric produced by shuttleless weaving machine

Info

Publication number: CN1754997A
Application number: CN 200510116584
Authority: CN
Inventors: R·卡皮塔尼奥; M·诺韦拉
Original assignee: Smit SpA
Current assignee: Smit SpA
Priority date: 2004-08-05
Filing date: 2005-08-05
Publication date: 2006-04-05
Also published as: EP1624096B1; EP1624096A3; EP1624096A2; DE602005019352D1; JP2006045762A; ITVI20040196A1

Abstract

The invention provides a device used for weaving fabric rim (23) on a fabric (24) woven by a loom, and the device comprises an unit (1) which has at least a planetary epicycloidal gear (13); wherein, the planetary epicycloidal gear (13) is used for distributing two strands of weaving yarns (4, 4A) to weaving points (22) of the fabric (24), where the fabric rim (23) is formed. The invention is characterized in that the weaving yarns (4, 4A) connected with each planetary gear come from a yarn package (2) on at least a supporting piece (9) which is arranged outside the unit (1).

Description

On the fabric of making by shuttleless loom, weave the device of selvedge

Technical field

The present invention relates to a kind of device of on the fabric of making by shuttleless loom, weaving selvedge.

Background technology

As everyone knows, natural selvedge weave must be by realizing through interweaving of weft yarn so that prevent the edge warp thread and come off from weft yarn.

The most frequently used weaving method, being called as has the groove leno heald (slotted leno heald), be position so-called to form " Warp opening (warp mouth) " by a pair of yarn of conversion and control of reciprocal position, similar to the opening that other warp thread forms, be used to introduce one or more parallel.

Can realize that this known devices that interweaves is various.

Particularly, first kind of traditional device uses the disk that has two holes, and woven yarn passes described two holes, and in order to realize weaving, disk is parallel to the yarn setting.

Yet there is the vertical shortcoming that hinders in this device, and it has hindered device itself and is installed in the leno heald frame, has therefore limited the maximum quantity that heald frame can be installed.

Another shortcoming is that when move in circular channel in the hole of disk, the friction yarn interlaced causes wearing and tearing.

Advised the device that is used to solve vertical obstruction problem of other types in the prior art, they can be placed on the inside of leno heald frame, but still there is shortcoming, wherein, may cause between guide eye and the yarn excessively slippage and/or excessive lateral to move obstruction, the maximum of restriction machine is weaved height.

The most frequently used device of weaving selvedge is called as " (rotation is cut apart) rotating splitz ", and based on a kind of installation epicycloidal tooth wheel apparatus with two interwoven yarns deposits onboard.

See from the angle of the passage (ellipse) of the guide eye of control opening angle (in fact, if geared system has constant rotational speed, opening angle meets sinusoidal rule) of interwoven yarns and yarn, these devices taken into account above-mentioned both.

Yet there is the problem that hinders in such device, and this is owing to the yarn feeding tube is installed in reason on the planetary gear of epicycloidal tooth wheel apparatus of device itself.

In fact this means, owing to inhibition can not be set to device in the leno heald frame.This fact has also limited the size of the yarn package of feeding interwoven yarns.

Summary of the invention

An object of the present invention is to overcome above-mentioned shortcoming, particularly, provide a kind of device of weaving selvedge on the fabric of being made by loom, described device can reduce the overall obstruction of whole system, needn't consider the size of used yarn package, described yarn package is placed on the outside of device.

Another object of the present invention is that described device can be realized the effective control to the yarn opening, makes that the opening angle of yarn of levels is identical, thereby, make the slippage between the yarn in the yarn feeding area between yarn package and the device itself eliminate/minimize.

Another purpose of the present invention provides a kind of device of weaving selvedge on the fabric of being made by loom, and this device descends the percentage elongation of yarn in the shed open.

Other purpose of the present invention provide a kind of usefulness simple, fast, accurately, the economic and device of mode Woven fabric selvedge reliably.

These purposes realize by making a kind of device of weaving selvedge on the fabric of being made by loom according to claim 1.

Other technical characterictic illustrates in the dependent claims.

Advantageously, the present invention keeps the epicycloidal tooth wheel apparatus (i.e. " rotatingsplitz " cut apart in rotation) of known type, and it has overcome the obstruction problem, and with respect to all traditional systems, reduces the percentage elongation of yarn in the shed open.

The further feature and advantage of weaving the device of selvedge on the fabric of being made by loom will comprise that accompanying drawing embodies more significantly from following description, and these descriptions are to be used for explaining and nonrestrictive purpose:

The complete perspective view of weaving the device of selvedge of the present invention shown in Figure 1;

Fig. 2 is the perspective view of the yarn feeding side of key diagram 1 shown device;

Fig. 3 is the cutaway view of device shown in Figure 1 III-III direction along the line;

The Descartes (Cartesian) who concerns between the opening angle that Figure 4 shows that near the yarn the selvedge and the anglec of rotation of Fig. 1 gear schemes.

The specific embodiment

Reference numeral among Fig. 1-3: 1 expression has the device of the epicycloidal tooth train of known type, comprise, in typing support member 10, disk 11, this disk direction shown in the arrow F in Fig. 1 is rotated in a known manner, drive two planetary gears 13 and rotate, described planetary gear separately with the relevant yarn 4 of weaving, 4A connects.

(Fig. 2) particularly, the paired yarn 4 that is provided with, 4A is directed in the device 1 through the pipe 14 of support component 15, and enters into the center of disk 11 thus, enters the inside in curved hole 16.

Weave yarn 4 then, 4A is separated to penetrate the central opening 17 of two planetary gears 13,18 (Fig. 1), and deflection enters in the guide eye 8, described guide eye 8 is installed in again on the

suitable carriage

19,20, converges to track 21 up to yarn, the selvedge 23 of this track machine representation fabric weave a little 22, woven fabric is totally represented with 24.

Two guide eyes 8 are provided with respect to the respective axis 6 (Fig. 3) of each planetary gear 13 is eccentric, make above-mentioned guide eye 8 follow elliptical path.

In a word, passing the guide eye 8 that is eccentrically set on the road wheel 13 is known technology, and weaving process also is the same.

According to the present invention, being labeled as 2 the yarn tube of

weaving yarn

4 and 4A among Fig. 1 is set on the external support component 9, described support member 9 is the rotation of the direction shown in the arrow G in Fig. 1,

yarn

4 and 4A at first enter epicycloid device 1 at dish 11 center and near being positioned at the rotation 5 of planetary gear 13, enter the center of each planetary gear 13 then, near relative rotation axi line 6.

Described device can be according to two kinds of different mode operations, particularly, a kind of pattern is: for fear of at blocker (interception) 3 with install in the zone between 1, the accumulation that

yarn

4 and 4A are entangled to each other, when direction rotation of rotating disc 11 pictures, support member 9 rotates synchronously with rotating disc 11; Another kind of pattern is: when rotating disc 11 alternately rotated a fixing turn on two opposite directions, support member 9 was fixed, and at blocker 3 with install in the zone between 1, kept the entanglement average out to zero of

yarn

4 and 4A.

Yarn

4 and 4A elongation reduce be because " cutting apart (splitz) " of epicycloidal tooth train (as, employed among the present invention) can not form shed open at the yarn feeding side yet, and, the elongation that is caused by previous warp thread mouth (in the shaping side of fabric 24) can be distributed on the length of yarn that extends to yarn package 2.

Finally, described device can be by optimizing the opening of

yarn

4 and 4A and the slippage of

yarn

4 and 4A minimized in the feeding district, the yarn opening angle of representing with α and β among maintenance Fig. 1 is all almost equal in all stages, especially in the operator scheme that the support member 9 of yarn package 2 is fixed.

In this case, the present invention is different with known devices, in known devices, depending on yarn is opened on top or in the bottom, has one with respect to the sinusoidal rule of contrast yarn opening angle that postpone or expection, (for example, angle [alpha] is different from angle beta in many operation phase of device), as shown in Figure 4, in the present invention, if rotating disc 11 is configured to constant rotating speed, then use device among the present invention can cause on top (angle [alpha]) and in the bottom (angle beta) yarn opening angle follow sinusoidal rule and change.

From foregoing description as can be known, weaving the characteristic of the device of selvedge on the fabric of being made by loom, also is goal of the invention of the present invention, has relevant advantage obviously.

Particularly, they have the following aspects:

-reduced vertical and horizontal the obstruction, and keep enough opening angles of weaving yarn;

-sliding phenomenon and the common damage of weaving yarn are minimized;

-effectively the passage (ellipse) of the guide eye of the opening angle of yarn and yarn itself is weaved in control.

At last, the device among the present invention can have a large amount of various variations, all belongs to inventive concept of the present invention.Also it is apparent that, in specific embodiments of the invention, material, form and described detailed dimensions can change as required, and can substitute with other the technology that is equal to mutually.

Claims

1. device that is used on the woven fabric of loom (24), weaving selvedge (23), comprise device (1) with at least one planet epicycloidal gear (13), described planet epicycloidal gear (13) is used to distribute two to weave yarn (4,4A) inweave point (22) to what fabric (24) formed selvedge (23), it is characterized in that, be connected to described on each planetary gear (13) weave yarn (4,4A) come from the yarn package (2) that is installed on outside at least one support member (9) of device (1).

2, device according to claim 1 is characterized in that, the support member (9) of described yarn package (2) rotates (G) synchronously with described epicycloidal gear, so that in the yarn feeding zone, yarn (4,4A) can not twine mutually.

3, device according to claim 1, it is characterized in that, the described support member (9) of yarn package (2) is maintained fixed, described epicycloidal gear is according to the program of setting alternately rotation (F) on two opposite directions, be applied to yarn (4 to keep, the twist 4A) or from yarn (4,4A) average of the twist that go up to discharge is zero.

4, device according to claim 1, it is characterized in that, described epicycloidal gear comprises that to be positioned at typing support member (10) inner, rotation (F) circular slab or disk (11), being used to drive two planetary gears (13) rotates, described weave yarn (4,4A) by mounted in pairs in feeding district, corresponding described plate or disk (11) in the guiding motion device (1).

5, device according to claim 4, it is characterized in that, the described yarn (4 of weaving, 4A) break away from coupling in the downstream of described plate or disk (11), deflection enters in the guide eye separately (8) on each planetary gear (13) respectively, converge to track (21) up to them, all of the selvedge (23) of this track machine representation fabric (24) inweave point (22).

6, device according to claim 5 is characterized in that, described guide eye (8) is provided with respect to the respective axis (6) of each planetary gear (13) is eccentric, makes described guide eye (8) follow elliptical path.

7, device according to claim 4 is characterized in that, the described yarn (4 of weaving, 4A) near the rotation (5) of described planetary gear (13), be guided in the access to plant (1), then, near the rotation (6) of described planetary gear (13), be guided at the center.

8, device according to claim 1, it is characterized in that, described device (1) keeps yarn opening angle (α, β) all university degree is identical in all stages, optimize and weave yarn (4, opening 4A), and make yarn (4, relative slippage does not take place in the zone that they may twine between 4A).