KR101857891B1

KR101857891B1 - Weaving machine having an apparatus for forming a leno selvedge

Info

Publication number: KR101857891B1
Application number: KR1020167002977A
Authority: KR
Inventors: 피터 수하; 게르하르트 보글; 헤럴드 아놀드
Original assignee: 린다우어 도르니어 게젤샤프트 엠바하
Priority date: 2013-07-25
Filing date: 2014-07-07
Publication date: 2018-05-14
Also published as: CN105408537A; RU2016105515A; DE102013214598A1; JP2016527416A; WO2015010879A1; RU2636308C2; EP3024967A1; KR20160029828A; JP6313853B2

Abstract

A loom having a first guide mechanism (12.1) configured as a linear guide for guiding a first Lenovo needle (11.1) and a device for forming a Lenovo Selby (1) by a first needle driver (13.1) do. And further comprises a second guide mechanism 12.2 configured as a linear guide for guiding the second Leno needle 11.2 and the second needle driver 13.2. The two guide mechanisms 12.1 and 12.2 and the two needle drivers 13.1 and 13.2 are fixed on the carrier 14 which can be driven in the longitudinal direction of the leno needles 11. [ The leno needles 11 are drivable through the carrier 14 and through the needle driver 13 at two planes 15.1, 15.2 parallel to one another. The two planes 15.1, 15.2 extend in the weft direction of the loom and in the longitudinal direction of the leno needle 11. In addition, a yarn guide element 16 is provided, which includes two guide contours 17.1, 17.2 extending in parallel in the lengthwise direction of the leno needles 11. The yarn guide element 16 is disposed in an area between the two planes 15.1, 15.2 of the leno needle 11 and the opening elements 8.

Description

TECHNICAL FIELD [0001] The present invention relates to a weaving machine having a leno shelf forming device,

The present invention relates to a loom provided with a leno shelf-forming apparatus.

A loom with an arrangement for forming a leno selvedge is known, for example, from DE 1814269. Lenovo Selby is formed by Lenovo and standing thread or ground threads. The edges of the fabric are fixed so that the warps of the edge region of the weave fabric can not be further relaxed or unwound from the weave fabric in the weft direction.

In DE 1814269, the leno rooms are moved back and forth with respect to the stationary chamber by means of an electromagnetic drive through the transmission elements and pairs of fork-shaped leno needles. In this regard, the leno yarns are moved in the weft direction. Various other forms of leno binding may be generated by the drive of the leno needle.

Often, several Lenovo Shelves are required on looms. They can be placed right and left in each weave fabric, or they can be centered between fabric runs or webs of multi-width woven webs. According to DE 1814269, for each such Lenovo Shelf, its own drive is required for the back and forth movement of each Lenovo Needle in the weft direction. Such a mechanism is complex, expensive, heavy, and therefore not widely used.
A device capable of driving several chambers for guiding the effective chambers in the weft direction by a common driver is disclosed in WO 2011095262 A1. However, WO 2011095261 A1 does not disclose the formation of a Lenesservice on the woven fabric edge or between the progressive parts or webs of several woven fabrics.

It is an object of the present invention to provide a loom in a simple arrangement for forming at least one Lenovo Sel.

This object is achieved by a loom provided with an apparatus for forming a leno shelf according to the independent claims.

In the loom according to the present invention, there is provided an apparatus for forming a Renosevel frame, comprising a first guide mechanism for guiding a first Leno needle and a first needle driver for driving a first Leno needle. The apparatus further includes a second guide mechanism for guiding the second Leno needle, and a second needle driver for driving the second Leno needle. In this regard, the leno needles have a thread eye and are typically elongated and thin elements through which the associated leno thread is guided. The guide mechanisms and the needle drivers are fixed to the carrier which can be driven by the driver in the longitudinal direction of the Leno needle. The longitudinal direction of the Leno needles extends generally perpendicular to the warp and weft yarns in the loom; In most looms it is basically vertical. Further, a yarn guide element is provided in the apparatus. In this respect, the yarn guide element is an elongated element, whose longitudinal axis is generally oriented in the same direction as the longitudinal axis of the Leno needle. The yarn guide element includes two guide contours extending in the longitudinal direction. The two guide contours are placed on two mutually facing sides of the yarn guide element. These are usually two faces or bounding surfaces of the yarn guide element, which face the warp yarns of the loom.

The loom further comprises opening elements, whereby a loom shed can be formed. The opening elements of the loom are, for example, heald frames or shafts, or harness cords. By means of a shedding machine mounted on the loom, harness cords or hive frames with associated heddles can be moved between the upper and lower opening positions. By this opening movement, the loom opening is formed by the warp yarn guided in the heald.

According to the present invention, a loom having a device for forming a Renosevel beam is characterized in that the first and second guide mechanisms are constituted as linear guides so that the Leno needles can be guided or driven in the weft direction of the loom. Further, both guide mechanisms and both needle drivers are fixed to the carrier so that the first Leno needle can be driven in the first plane and the second Leno needle can be driven in the second plane, so that these two planes extend parallel to each other. In this respect, for example, the spacing between the two planes can be achieved by means of spacers in the guide region which is mounted in a manner suitable for the carrier.

According to the present invention, the yarn guide element is disposed in an area between the opening elements of the loom and the two planes from which the leno needle can be driven.

According to the apparatus of the present invention, the first and second Reno needles each having the first and second Reno yarns are alternately moved to the right or left side of the stop chamber or the ground chamber extending in the warp direction, running. By driving the carrier in the longitudinal direction of the leno needle - therefore, normally vertical-bilateral leno needles, or bilateral leno threads, respectively, alternately go above or below the plane in which the wefts are inserted. Thus, an alley or passage through which each of the leno needles pass is formed by the yarn guide element between the stop chamber and the adjacent warp yarn. According to the described sequence of movements, the stop chamber and each inserted weft form a loop by both side Lenovo chambers at the same time. This results in particularly robust binding of the lanocerviservices.
Furthermore, an advantageous effect arises because the yarn guide element is disposed in the area between the leno needles and the wefts of the opening elements of the loom. Thus, the formation of a bore or passage between the warp and the stop chamber is achieved and there is no risk of collision between the weft reed of the loom and the yarn guide element.

It is effective that the through-passage point is located close to or close to the yarn guide element so that the leno needle passes through the gap between the stationary yarn and the warp yarn in the widest region of the existing bone or passage. It may therefore be appropriate or effective to arrange the leno needle in a direction toward the yarn guide element, that is, toward the rear of the warp direction, or at an angle starting from the guide mechanism.

The first and second Lenovo needles are drivable in the weft direction of the loom by the respective first and second needle drivers irrespective of each other Leno needle. It is preferable that the first and second needle drivers are each constituted by a linear drive. Needle actuators may be pneumatic, electromotorized, or electromagnetic linear drives.
For example, an arrangement in which the first and second guide mechanisms and the first and second needle drivers are mounted on the front side of the hinge frame is effective. Thus, a hinge frame with standard elements - i.e., conventional commercially available related hill guides, can be used as a carrier for the leno device. In this regard, a technically useful solution is the drive of the hinge frame or carrier by the opening machine of the loom. Due to the normal order of movement of the opening machine, this usually results in the leno yarns being alternately located above and below the weft threads of successive weft inserts. The carrier can also be driven by a driver that performs a complete downward or upward movement of the carrier between the two weft inserts when the Lenosyls require a Lenovo Shelf positioned above or below the wefts of the continuous weft insert. For example, it may be a driver driven from a weaving reed driver of a loom. With the corresponding programming of the needle driver for the leno needle and the driver for the carrier of the leno device, various other modifications of the leno binding can be generated at the fabric edge.

Optionally, the structure of the various embodiments of the loom according to the present invention occurs through various other mounting or installation possibilities of the thread guiding element.

A first simple structure is created when the yarn guide element is fixed to a drivable carrier as a guide mechanism, such as the Leno chambers.

In this case, the yarn guide element is driven in synchronism with the Leno needle in the longitudinal direction of the Leno needle or the longitudinal direction of the guide element. The yarn guiding element together with the guiding contour must be configured to be long enough so that the yarn guiding element always maintains the bone-forming or passage-forming function in the warp and the stitch seal area during the above- The intersection of elements can not occur. This object can be achieved, for example, if the guiding contour of the yarn guiding element extends over a length corresponding roughly to the separation distance between the upper opening position and the lower opening position of the loom.

In a further advantageous embodiment, the yarn guide element is fixed to the opening element of the loom or to a stationary component of the loom.

When fixed to the opening element, a movement perpendicular to the warp and weft in the longitudinal direction of the yarn guide element occurs like the opening element.

The thread guiding element similarly includes a length corresponding to the spacing distance between the upper opening position and the lower opening position on the loom when the stop part of the loom, for example, is fixed to a transverse or crossing lateral beam of the loom frame do. Thus, during replacement of the opening, no yarn is stuck or caught on the free end of the yarn guide element, or is not inaccurately intersected with the yarn guide element.

Usually weaving fabrics are bound together on both sides by Lenovo Shelves. It may therefore be important or appropriate to fix the first group of two first Leno needles and the second group of two second Leno needles respectively to the first or second guide mechanism. The two leno needles belonging to a group are arranged in this case at a distance from one another in the direction of the warp, which corresponds roughly to the weaving width of the weaving reed. In the right or left woven fabric edge region, leno binding is formed by one of a pair of leno needles, respectively, whereby one pair of these leno needles belong to a group of first leno needles, Belongs to the group of the second Lenovo needles. Each of these pairs of first and second Lenovo needles is designated with at least one yarn guide element which provides a passage or valley between the stationary chamber and each adjacent warp yarn at one side of the stationary chamber.

Further, it is to be understood that each stop thread can be guided on both sides by each one thread guide element. In this case, each of the first and second Leno needles is assigned a pair of two yarn guide elements. This prevents intrusion-induced deflection in the transverse direction of the stop chamber, thereby improving process reliability.

In order to form a Renoservage at the mid-separation or partial position of the two-fabric-progressive and multi-width woven webs, it is also possible to add, as a supplement to the group of first and second Lenovo needles for the two outer- It may be appropriate to provide leno needles for two fabric edges.

Thereby, a group of the first Lenovo needles and a group of the second Lenovo hands are produced, each of which consists of four needles. All four needles in one group are connected to the same guide mechanism, which is driven by the needle driver. For each of the four fabric edges or all of the shelves, one pair of first and second leno needles are used to respectively form two Leno chambers and a Lenovo Shelf of one stationary chamber, respectively. For multi-width woven webs, at least three yarn guide elements are used at the center. One yarn guide element is provided for each of the two stop chambers and the two side passages or valleys between the respective neighboring warp yarns and an additional yarn guide element is provided for forming a passage or a valley between the two central stop chambers.

Therefore, in a further embodiment of the loom according to the invention, there are a group of first and second leno needles and, furthermore, a plurality of thread guiding elements are provided, so that the thread guiding elements and the leno needles, Two pairs are arranged so that a group of three yarn guide elements are designated.

In multiple-fabric-run and multi-fabric-run multiple-width woven webs with multiple separating or separating positions between individual woven fabric advances, The number of first and second Leno needles is correspondingly increased so that each pair of first and second Leno needles is provided at each outer and center fabric edge. In a woven web having two or more fabric advances, a group of three yarn guiding elements are arranged in two pairs of first and second Lenovo needles, as described previously in relation to a two-fabric- Respectively.

In a further embodiment of the invention, which is particularly effective for multi-fabric-running and multi-width woven webs, the leno yarns are unwound outward from the yarn bobbin of the yarn storage or yarn feeder located in the weft insertion section of the loom. This makes it easier to access the yarn bobbin of the yarn feeder or the yarn storage of the Lenovo yarn from the front side of the loom. Thus, in the case of yarn damage, the leno yarns need to be pulled forward from the rear region of the opening element, which is advantageous to the operating personnel.

Formation of the Lenovo Selbee in a loom according to the present invention with a Reno device as described above is advantageous in manufacturing multi-fabric-progressive and multi-width woven webs at high rotational speeds. That is, the leno sheath used in the prior art is no longer economically available at high machine rotational speeds due to its high abrasion resistance. In a Reno device with a motor driver for forming a Renoservice, its respective driver is required for each fabric edge; This increases the cost. For higher machine rotational speeds, a motor-driven Leno device is used, wherein the Leno chambers are guided through the eye or eye opening of the Leno disk. However, such a Lenodisk creates undesirable broad passages or valleys between the majority-fabric advancement and the center Lenorevels of the multi-width woven web.

According to the present invention, it is possible to manufacture a multi-fabric-progressive portion and a multi-width woven web having a Lenoselvia with only two needle drivers. Moreover, very narrow passages or valleys can be constructed at the center separation or break positions between the fabric advances. In this respect, the passage or trough width is only determined by the thickness of the leno needle and thread guiding element. As such, the multi-fabric-progressing portion with the Renosevels and the multi-width woven webs can be produced at high rotational speeds and in particular economically.

Figure 1 is a schematic partial planar view that does not reflect the scale of the embodiment of the loom according to the invention;
Figure 2 is a schematic view that does not reflect the scale of the embodiment according to Figure 1 seen in the weft direction;
Figure 3 is a schematic cross-sectional view that does not reflect the scale of a further embodiment of a loom according to the invention viewed from the front along cut line AA (see Figure 2);
Figure 4 is a schematic partial plan view that does not reflect the scale of the embodiment of the loom according to the invention according to Figure 3;

Figure 1 shows a partial view of a loom according to the invention with a warp yarn 2 extending in the warp direction 3 and a weft yarn 4 extending in the weft direction 5 in the loom.

In this embodiment, the opening element 8 comprises a frame-type hull frame or shaft with a heald, and the warp yarn 2 is guided or driven in a known manner and in a manner known per se through the heald.

The leno shell selvedge 1 is formed by two leno threads 6.1 and 6.2 and a ground or stop chamber 7. The stop chamber (7) extends parallel to the warp (2) at the edge of the weave fabric. The stop chamber may or may not be included in the opening formation. The first Reno chamber 6.1 is guided by the first Reno needle 11.1 in the first plane 15.1. The second Reno chamber 6.2 is guided by the second Leno needle 11.2 in the second plane 15.2. The two planes 15.1 and 15.2 of the leno needles 11.1 and 11.2 extend parallel to each other in the weft direction 5 and longitudinal direction of the leno needle 11. Each of the two leno needles 11.1 and 11.2 can be alternately positioned to the left and right of the stop chamber 7. [ A thread guiding element 16 is provided which comprises guiding contours 17.1 and 17.2 on two opposing surfaces and the guiding contours extend parallel to one another in the longitudinal direction of the leno needle 11. On the yarn guide element 16, the guide contours 17 form contact surfaces or contact lines, which are directed to the warp yarns 2 in the loom or to the stop chambers 7, respectively. The warp yarns 2 adjacent to or adjacent to the stop yarn 7 are formed in such a manner that even if the warp yarn 2 and / or the stop yarn 7 are moved in the longitudinal direction of the leno needles 11 for forming the openings, Is guided on the guide contour 17 so that the spacing distance is maintained. In this regard, the cross-section of the yarn guide element is not caught in one of the two adjacent chambers, and the passage or trough, in which the leno needles 11 can be immersed or inserted, Is selected to be sufficiently large. The renaissance yarns 6 and the associated stop chamber 7 are pulled together in common through the lead gaps of the weaving lid 10 of the loom.

Fig. 2 shows a loom according to Fig. 1 as a partial view in weft direction 5; Fig. The warp yarn 2 is pulled from the unillustrated warp beam at the rear of the loom. The stop chamber 7 is also pulled from the unillustrated thread supply at the rear of the loom. In the illustrated embodiment, the Leno seals 6 are pulled from a thread bobbin of a yarn feeder or seal storage 18 located in the weft insertion region of the loom.

The first Leno needle 11.1 is mounted to the first guide mechanism 12.1 and the second Leno needle 11.2 is mounted to the second guide mechanism 12.2. In this example, the two leno needles 11.1, 11.2 are bent backward in the warp direction 3 towards the yarn guide element 16. In this example, the guide mechanism 12 is constituted by guide rails screwed to the hinge frame. Several spacer elements slide on the guide rail in the weft direction 5 and the spacing between the two planes 15.1, 15.2 of the leno needles 11.1, 11.2 is determined by the spacing elements. The drive rails are fixed to the spacer elements and the outer ends of the respective drive rails are connected to a needle driver 13, each of which is embodied as a linear motor driver. Needle holders for each group of leno needles 11 or leno needles 11 are mounted on the drive rails, respectively. The guide rails extend in the weft direction 5 in front of the carrier 14 driven by the opening machine 9, through which the actuator of the opening element 8 is carried out in the loom.

Figure 3 shows the arrangement of the needle drivers 13.1, 13.2 on the hull frame of the loom. The two needle drivers 13.1 and 13.2 are fixed together with the associated guide mechanisms 12.1 and 12.2 on the front side of the hinge frame or carrier 14 and in the longitudinal direction of the leno needles 11, (9). Each of the two needle drivers 13.1, 13.2 can be driven by an electronic control mechanism (not shown) independent of each of the other needle drivers 13. [

One of each of the two leno needles 11.1 and 11.2 is alternately moved to the right or left of the stop chamber 7 in order to form the Lenovo Shelf 1. The driving of the carrier 14 proceeds in the longitudinal direction of the leno needles 11 and therefore perpendicularly to the warp yarn 2, the stop chamber 7 and the weft yarn 4. Weft insertion can occur at both end positions of the carrier 14 so that as the result of a new change in the position of the leno needles 11 the leno threads 6 alternate above and below the weft threads 4 And are alternately positioned to the right and left of the associated stop chamber 7. [ Thereby, a Renoservissue 1 composed of three chambers is formed.

Figure 3 shows the arrangement of the guide mechanism 2 and the needle drivers 13 of the carrier 14, which is the same as all the embodiments described herein. However, in Fig. 3 the details of further embodiments of the loom according to the invention are also shown. In this regard, this is for an embodiment in which groups of first and second Leno needles 11.1, 11.2 are each assigned to a group of thread guiding elements 16, respectively. Additional details of this embodiment for multiple fabric-progressive and multi-width woven webs are shown in FIG. A group of three yarn guide elements 16 are each assigned to two pairs of first and second Leno needles 11.1 and 11.2, respectively.

In this regard, two outer yarn guide elements 16 form a bore or passage between the stop chamber 7 and the adjacent warp yarn 2 of the advancing portion or web of the weaving fabric. The central thread guiding element 16 forms a bore or passage between two stop chambers of the adjacent woven fabric advancement or web.

1: leno selvedge
2: warp (warp)
3: curved direction
4: weft
5: Weft direction
6.1, 6.2: first Reno room, second Reno room
7: Ground or stop chamber
8: shedding element
9: opening machine
10: weed reed
11, 11.1, 11.2: a leno needle, a first leno needle, a second leno needle
12, 12.1, 12.2: guide mechanism, first guide mechanism, second guide mechanism
13, 13.1, 13.2: needle driver, first needle driver, second needle driver
14: Carrier
15.1, 15.2: Leno needle plane
16: yarn guide element
17, 17.1, 17.2: guide contours
18: Room storage or Renosil feeder

Claims

An apparatus for forming a Renoservissue 1 consisting of opening elements 8 and two leno threads 6.1 and 6.2 and a stop chamber 7 for forming looms opened by warp yarns 2 As the loom provided,
The apparatus includes a first guide mechanism 12.1 for guiding a first Lenovo needle 11.1, a first needle driver 13.1 for driving a first Lenovo needle 11.1, and a second Lenovo needle 11.2 And a second needle driver (13.2) for driving the second leno needle (11.2), wherein the second guide mechanism (12.2)
The guide mechanisms 12 and the needle drivers 13 are fixed to a carrier 14 which can be driven by a driver in the longitudinal direction of the leno needles 11,
Further comprising a yarn guide element (16) including two guide contours (17.1, 17.2) extending parallel to the longitudinal direction of the leno needles (11)
The guide contours are arranged on two opposite sides of the thread guiding element 16,
The guiding devices 12 are each embodied as linear guides so that the leno needles 11 can be driven in the weft direction 5 of the loom,
The first and second Leno needles 11.1 and 11.2 are connected to each other by respective respective first needle drivers and second needle drivers 13.1 and 13.2 independently of each other Leno needles 11, And the needle drivers 13 are implemented as pneumatic linear actuators, electric motor linear actuators or electromagnetic linear actuators, respectively,
The two guide mechanisms 12.1, 12.2 are arranged such that the first Leno needle 11.1 is actuable in the first plane 15.1 and the second Leno needle 11.2 is actuatable in the second plane 15.2. And two needle drivers 13.1, 13.2 are fixed to the carrier 14,
The two planes 15.1 and 15.2 extend parallel to one another and the bosses or passages between the warp yarns 2 and the stop chamber 7 are formed by the thread guiding element 16. [ Wherein the element (16) is disposed in an area between the two planes (15.1, 15.2) of the leno needles (11) and the opening elements (8).

The method according to claim 1,
Wherein the yarn guide element (16) is fixed to the carrier (14).

The method according to claim 1,
Wherein the yarn guide element (16) is fixed to one of the opening elements (8) of the loom.

The method according to claim 1,
Wherein the yarn guide element (16) is fixed to a stop part of the loom.

5. The method according to any one of claims 1 to 4,
A group of first Lenovo needles 11.1 is fixed to a first guide mechanism 12.1 and a group of second Lenovo needles 11.2 is fixed to the second guide mechanism 12.2, The groups of two leno needles (11.1, 11.2) are each actuable by first and second needle drivers (13.1, 13.2).

6. The method of claim 5,
There is a plurality of thread guiding elements 16 and the thread guiding elements 16 and the leno needles 11 are arranged such that the group of two thread guiding elements 16 is a pair of first and second Leno needles (11.1, 11.2), respectively.

6. The method of claim 5,
There are a plurality of yarn guide elements 16 and the yarn guide elements 16 and the leno needles 11 are arranged such that the group of three yarn guide elements 16 is divided into two pairs of first and second Leno needles (11.1, 11.2), respectively.

6. The method of claim 5,
Wherein yarn stockers (18) for the Leno yarns (6) are present and the yarn stockers (18) of the Leno yarns (6) are arranged above the weft insertion areas of the loom.