CN210215721U - Weft yarn separating device - Google Patents

Abstract

The utility model discloses a woof separator, include: a transmission mechanism; a drive mechanism for driving the transmission mechanism; the weft yarn separating finger is provided with a finger root and a finger tip, the driving mechanism comprises a driving shaft and a driving unit for controlling the driving shaft to move, the driving shaft is connected with the transmission mechanism, the finger root of the weft yarn separating finger is arranged on the transmission mechanism, the finger tip faces the transverse direction of a plurality of weft yarns, the transmission mechanism drives the weft yarn separating finger to reciprocate through the driving shaft, and the weft yarn separating finger can extend into the space between the weft yarns. The utility model discloses a plurality of woofs can be avoided tangling or the separation is tangled.

Description

Weft yarn separating device

Technical Field

The present invention relates to the field of rapier looms, and more particularly to a fabric for weaving a plurality of weft yarns supplied from separate sources.

Background

In rapier looms, in particular for fabrics which require the interweaving of a plurality of weft yarns, a plurality of weft yarns supplied from separate sources are introduced in a defined pattern or sequence into a continuously formed warp shed. For this purpose, it is known to provide a delivery device with a separate delivery element for each weft thread, by means of which any of the plurality of weft threads is delivered, which is located in the insertion path of the rapier head for subsequent insertion into the shed formed by the upper and lower warp threads. It is also known to transport two or more weft threads simultaneously for joint weft insertion.

When moving the weft thread by means of the transport element, there is a risk that the moved weft thread, due to entanglement, makes it unnecessary for the weft thread delivered to the gripper head to move into the insertion path of the gripper head. It is therefore known to provide a further weft thread separating device for separating the weft thread from the undelivered weft thread. For example, US 4,022,253 shows a weft yarn separating device with a separating finger member which is continuously revolving in a sequence synchronized with the weaving cycle, into and out of a position in the middle of the weft yarn being delivered but not participating in the delivery of the weft yarn. The weft separating device is mechanically connected to the main shaft of the weaving machine so that during each weaving cycle the above-mentioned in-and-out movement is accomplished.

SUMMERY OF THE UTILITY MODEL

To overcome the drawbacks of the prior art, it is an object of the present invention to provide a weft yarn separating device for a weaving loom for weaving a fabric of a plurality of weft yarns supplied from a single source.

In order to solve the technical problem in the background art, the utility model discloses a woof separator includes:

a transmission mechanism;

a drive mechanism for driving the transmission mechanism;

a weft separating finger having a finger root and a finger tip,

the driving mechanism comprises a driving shaft and a driving unit used for controlling the driving shaft to move, the driving shaft is connected with the transmission mechanism, the finger roots of the weft yarn separating fingers are arranged on the transmission mechanism, the finger tips face the transverse direction of a plurality of weft yarns, the transmission mechanism drives the weft yarn separating fingers to reciprocate, and the weft yarn separating fingers can extend into the space between the weft yarns to be conveyed and the weft yarns which are not conveyed.

The weft yarn separating device of the utility model is arranged on the rapier loom. Wherein the weaving machine comprises a conveying device with a separate conveying element for each weft thread, which conveying elements are movable between a rest position and a working position, wherein in the working position of each conveying element the relevant weft thread is conveyed to a position for insertion, wherein for each insertion at least one weft thread is conveyed. Wherein the weft separator finger is mounted to move to and from a plurality of weft yarn inner positions, wherein in the inner positions the weft separator finger is intermediate at least one of the delivered weft yarn and the undelivered weft yarn, wherein the weft separator device further comprises a selectively controllable drive unit adapted to selectively drive the separator device to accommodate a selected weaving cycle, move the finger member to the inner position, and to be able to move the undelivered separator finger to the inner position for further weaving cycles.

A weaving cycle generally comprises the operations of forming a warp shed by moving the warp yarns up and down, introducing one or more weft yarns into the warp shed and tightening the weft yarns. When a different weft thread is introduced, the associated transport unit is moved between a rest position and a working position to transport one or more weft threads for insertion. The transported weft thread is subsequently introduced into the warp shed, for example by means of a rapier head. Normally, after the weft thread delivered is received by the gripper head, the delivery element is moved back to the rest position. When moving the conveying element, there is a risk that the moving weft threads become entangled with other weft threads. The weft separating fingers can be moved to an inner position in order to separate the tangled wefts from each other and/or to avoid weft entanglement.

It should be noted, however, that the weft separating fingers need not be moved each time in each weaving cycle. Thus, according to the present invention, a selectively controllable drive unit is provided which is adapted to drive the weft separator finger to move to the inner position only in selected weaving cycles, instead of all weaving cycles moving the weft separator finger to the inner position.

Thus, if a movement of the separating fingers for separating the tangled weft threads from each other and/or for avoiding entanglement of the weft threads is not necessary, the separating fingers are not driven to move into the inner position. When the separator finger is not moved, problems associated with the movement of the separator finger are avoided, for example, the movement of the weft thread to be conveyed next or the movement of the previously conveyed weft thread is disturbed by the separator finger.

Furthermore, the device also comprises a control unit and a setting unit used for sending a control instruction to the control unit, wherein the control unit is connected with the driving unit through a cable.

Further, the setting unit is wirelessly connected with the control unit.

In one embodiment, the control unit sends control commands to the drive unit for selectively driving the separator fingers to move to the inner position for a selected weaving cycle, and in other non-selected cycles to move the non-driven separator fingers to the inner position. In one embodiment, the control unit is specific to the weft separating device. In other embodiments, the control unit is at least partially integrated into a central control unit of the weaving machine. The control commands sent by the control unit may be selected on the basis of several factors selected among the type of weft yarn required in a weaving cycle, the relative position between the transport elements moved in a weaving cycle and the number of transport elements moved in a weaving cycle. In the context of the present invention, the type of weft yarn is understood to be a structure of the relevant yarn, in particular whether the yarn has a smooth structure or is a so-called yarn with an irregular structure or unusual features, such as slub yarn, wrap yarn, or varying thickness introduced during the yarn production process, etc.

The selection of whether to move the separating fingers to the inner position can be made individually for each weaving cycle. For example, a weft separating device may be used when a smooth weft and a weft having knots or thickenings are mixed for weaving. In the weaving cycle in this case, at least one weft thread with a knot or thickening passes through another weft thread, in particular when two weft threads with a knot or thickening cross one another, then the weft thread separator finger is driven to move into the inner position for the weaving cycle. On the other hand, in a further weaving cycle, only smooth weft threads cross each other, and the weft thread separation means are not driven but move to an inner position of the weaving cycle. Similarly, in a weaving cycle, the moving weft threads are adjacent to each other and there is a high risk of weft threads becoming entangled, the separation fingers being driven to move to an inner position for the weaving cycle, while in another weaving cycle, the moving weft threads are relatively far from each other and there is a low risk of weft threads becoming entangled, the weft separation fingers not being driven to move to an inner position of the weaving cycle.

The movement path of the weft separating fingers is selected to match the transport device. In an embodiment of the weft separating device, the separating fingers are mounted to rotate back and forth about a rotational axis. This provides reliable movement and is less prone to failure.

Further, the transmission mechanism comprises a first transmission rod 28, a second transmission rod 30, a third transmission rod 32 and a fixing frame 17, one end of the first transmission rod 28 is connected with the driving shaft, one end of the second transmission rod 30 is connected with the fixing frame through a rotating shaft, and two ends of the third transmission rod 32 are respectively connected with the other end of the first transmission rod 28 and the other end of the second transmission rod 30 in a rotatable mode.

Further, one end of the weft separating finger is connected to the second driving lever 30, and the other end faces in the transverse direction of the plurality of wefts.

Further, the distance between the driving shaft and the third transmission rod is not equal to the distance between the rotating shaft and the third transmission rod.

Further, still include the holder, actuating mechanism, drive mechanism and mount are all installed on the holder.

In an embodiment of the weft separating device, the separating finger is connected to the drive mechanism by a transmission mechanism, which comprises a first transmission rod connected to the drive mechanism and driven to rotate by the drive unit axis, the second transmission rod is rotatably mounted around the rotational axis of the weft separating finger, and the first transmission rod and the second transmission rod are connected by a third transmission rod. In other words, the present invention provides a four bar linkage system in which the length of the links, and the relative positions of the links, may be selected for the design of the desired movement by those skilled in the art.

Furthermore, the finger root of the weft yarn separating finger is connected to the second transmission rod, a plurality of bent parts are arranged between the finger root and the finger tip of the weft yarn separating finger, and the plurality of bent parts are connected in a smooth transition mode.

Further, the weft separating finger has a first bend and a second bend, the first bend and the second bend having opposite bending directions.

Further, the weft yarn separating device is installed on the rapier loom.

The weft separating fingers can be formed integrally with the second drive rod. In an embodiment of the weft separating device, the separating fingers are formed separately and mounted in an adjustable position on the second drive rod. The weft separating fingers can also be fixedly or detachably mounted on the second drive rod.

The weft separating device is in the form of a unit which can be mounted on a wall panel of the weaving machine, for example in an adjustable position on the wall panel of the weaving machine. In one embodiment, a holder is provided by means of which a weft yarn separating device can be fixedly mounted on a wall panel of a weaving machine. For example, the position of the unit can be adjusted in all spatial directions. Alternatively, the unit may be mounted on the beating-up seat of the weaving machine.

In an embodiment of the weft separating device, the drive unit is adapted to selectively drive the weft separating fingers to move between an inner position and an outer position, wherein the weft separating fingers do not influence the position of the weft. The skilled person can select the outer position such that the weft yarn separating finger does not interfere with the movement of any other element of the weaving machine, in particular with the movement of the weft yarn conveying unit of the weaving machine, when the weft yarn separating finger is in the outer position.

In one embodiment, the inner position of the weft separator finger is predefined, wherein the drive unit is adapted to selectively drive the separator finger member to move to any position between the predetermined inner position and the outer position for performing the selected weaving cycle.

In an alternative embodiment of the weft yarn separating device, the inner position of the weft yarn separating fingers is adjustable, wherein the drive unit is adapted to selectively drive the weft yarn separating fingers to move to the adjustable inner position for performing a selected weaving cycle. For example, in one embodiment, the inboard position can be adjusted by selectively driving the weft yarn separator fingers to move through the weaving cycle along their entire range of motion or only along a portion of their range of motion.

In one embodiment, the weft separating device is adapted for a weaving machine, wherein each transport element is movable between a rest position and a working position for transporting a plurality of weft threads to a position for the insertion of weft threads. The relevant transport element is moved into an operating position, in which the weft thread separating finger is located between a transported weft thread and an undelivered weft thread in the inner position.

The utility model discloses a woof separator, it can avoid a plurality of woofs to tangle or separate and tangle.

Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.

Drawings

In order to more clearly illustrate the technical solution of the present invention, the drawings needed for the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without creative efforts.

FIG. 1 is a schematic structural view of the weft insertion device of the rapier loom of the present invention;

FIG. 2 is a schematic top view of the weft insertion device of the rapier loom of the present invention;

FIG. 3 is a schematic top view of the weft insertion device of the rapier loom of the present invention;

FIG. 4 is a schematic view of a part of the construction of the weft separating device shown in FIG. 1;

fig. 5 is a partial structural schematic view of a weft separating device.

Wherein 2-fabric, 3-warp, 4,5,6, 7-weft, 8-weft cutter, 9-transport element, 10-rapier, 11-rapier, 12-warp shed, 13-fabric support, 14-cable, 15, 16-bolt, 17-holder, 18-bolt, 19-wall board, 20-weft separating device, 21-weft separating finger, 211-finger root, 212-fingertip, 213-first bend, 214-second bend, 22-drive mechanism, 23-drive mechanism, 24-control unit, 25-setting unit, 26-holder, 27-rotation axis, 28-first drive rod, 29-drive shaft, 30-second drive rod, 31-bearing, 32-third transmission rod, 33-first joint, 34-second joint.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary and intended to be used for explaining the present invention, and should not be construed as limiting the present invention.

In the description of the present invention, it is to be understood that the terms "upper", "lower", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the present invention. In the description of the present invention, "a plurality" means two or more unless specifically limited otherwise.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly, e.g., as meaning fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or may be connected through the interior of two elements or in interactive relation with one another. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

Referring to fig. 1 to 3, fig. 1 is a schematic structural view of a weft insertion device of a rapier loom of the present invention, and fig. 2 is a schematic top view of the weft insertion device of the rapier loom of the present invention; fig. 3 is a schematic plan view of the weft insertion device of the rapier loom of the present invention. As shown in fig. 1 to 3, the fabric 2 is formed by warp yarns 3 and weft yarns 4,5,6,7, the weft yarns 4,5,6,7 penetrating between respective warp sheds 12 formed by the warp yarns 3. The fabric 2 is guided over a fabric support 13. The weaving machine 1 comprises a conveying device (not shown) with a conveying element 9, each weft thread 4,5,6,7 and weft thread separating device 20 having a weft thread separating finger 21, which weft thread separating finger 21 is mounted so as to be mounted about a rotational axis 27. Fig. 2 and 3 are top views of the weft insertion device seen in the direction of rotation 27, in which the weft separating fingers 21 are arranged in a position inside (fig. 2) and outside (fig. 3) a plurality of weft threads, respectively.

The weft separating device 20 comprises a transmission mechanism 23, a drive mechanism 22 for driving the transmission mechanism 23, and a weft separating finger 21. The weft separating finger 21 is provided with a finger root 211 and a finger tip 212, the driving mechanism comprises a driving shaft 29 and a driving unit for driving the driving shaft 29, the driving shaft 29 is connected with the transmission mechanism 23, the finger root 211 of the weft separating finger 21 is arranged on the transmission mechanism 23, the finger tip 212 faces the transverse direction of a plurality of wefts 4,5,6 and 7, the driving unit controls the driving shaft to rotate, the driving shaft 29 drives the transmission mechanism 23 to move, the transmission mechanism 23 drives the weft separating finger 21 to reciprocate, and the weft separating finger 21 can extend into the plurality of wefts 4,5,6 and 7.

Fig. 2 shows a rapier 10 in tape-like or rod-like form, at the distal end of the rapier 10 a rapier head 11 is provided, which rapier head 11 is arranged to introduce selected weft yarns 4,5,6,7 into the warp shed 12. By the form of the gripper head 11 gripping the carrier in the shown embodiment, the gripper head 11 introduces the weft thread 4,5,6,7 into half of the warp shed 12 and transfers the weft thread 4,5,6,7 to a second gripper head, usually called a catcher gripper (not shown), for further introduction towards the opposite side of the weaving machine. The weft cutter 8 cuts a part of the weft thread 4,5,6,7 to remain at the edge of the fabric 2 before or before the rapier head 11 is introduced into the warp shed 12.

It is to be noted that a plurality of weft yarns 4,5,6,7 supplied from a separate source (not shown) can be introduced into a continuously formed warp shed 12 in a defined pattern, e.g. in a defined sequence. In fig. 1 to 3, four weft yarns 4,5,6,7 are shown. However, the invention is not limited to the use of four weft yarns, and in other embodiments only two, three or more than four weft yarns are introduced, for example up to eight or more weft yarns.

For each introduction, any one or more of the weft threads 4,5,6,7 may be selected. For this purpose, a conveying device is provided in which only parts of the conveying elements 9 are shown which are independent of each weft thread 4,5,6, 7. In this embodiment, the transport element 9 is a pinhole through which the weft threads 4,5,6,7 pass, wherein any one of the plurality of weft threads 4,5,6,7 is presented to the rapier head 11 by the movement of the relevant transport element 9, the transport device being located at a position in the insertion path of the rapier head 11. For example, in fig. 2, one weft yarn 5 is shown while the other weft yarns 4,6,7 are undelivered. However, this configuration is merely exemplary. The transported weft thread 5 is taken up by the moving gripper head 11, cut by the weft thread cutter 8 and introduced into the warp shed 12. The three undelivered weft threads 4,6,7 are not taken up by the gripper head 11, are not cut by the weft thread cutter 8 and are not introduced into the warp shed 12.

Referring to fig. 4 and 5, fig. 4 is a schematic view of a portion of the weft separating device shown in fig. 1; fig. 5 is a partial structural schematic view of a weft separating device. As shown in fig. 1 to 5, the weft separating device 20 can reciprocate between a plurality of weft inner positions and a plurality of weft outer positions. The separating finger 21 is located at an inner position (fig. 2) between the delivered weft thread 5 and the undelivered weft thread 4,6,7, separating the delivered weft thread 5 from the undelivered weft thread 4,6, 7. The separating fingers 21 avoid entanglement of the weft threads 4,5,6,7 or separate the entangled weft threads 4,5,6,7, thus ensuring that only the transported weft thread 5 is taken up by the rapier head 11 for introduction into the warp shed 12 and also that only the transported weft thread 5 is guided to the weft cutter 8 for cutting near the edge of the fabric 2.

The weft separating fingers 21 are mounted to rotate back and forth about an axis of rotation 27 between a plurality of weft inner positions as shown in fig. 2, wherein the weft separating fingers 21 are located between a delivered weft thread 5 and an undelivered weft thread 4,6, 7. An outer second position, as shown in fig. 3, in which the weft separating fingers 21 are not arranged in the middle of the weft threads 4,5,6, 7.

The drive mechanism 22 comprises a drive shaft 29 and a drive unit 22 for controlling the movement of the drive shaft 29, by means of which drive unit 22 the weft separating fingers 21 are driven to move to or from an inner position for a plurality of weft threads at a selected moment in the weaving cycle. The drive unit 22 may be, for example, a controllable electric motor.

The weft separating device 20 further comprises a control unit 24 and a setting unit 25 for issuing control commands to the control unit 24, the control unit 24 being connected to the drive unit 22 by a cable. The setting unit 25 is connected to the control unit 22 by wireless or cable. The drive unit 22 drives the weft separating fingers 21 via a transmission 23. In one embodiment, the control unit 24 and the setting unit 25 are formed as separate devices, which are wireless or communicate through a wired connection. In other embodiments, the control unit 24 and the setting unit 25 are designed as a combined device. In addition, the control unit 24 and/or the setting unit 25 can be integrated into a central control unit of the weaving machine. In other embodiments, the control unit 24 and/or the setting unit 25 communicate with a central control unit of the weaving machine.

As shown in fig. 1, the weft separating device 20 is in the form of a unit which is mounted to a wall plate 19 of the weaving machine by means of a holder 26 in an adjustable position. The position of the weft separating device 20 can be adjusted in all spatial directions relative to the fabric 2 to be woven, for example, by means of the bolts 18. In the embodiment shown, the axis of rotation 27 (see fig. 2 and 3) of the weft separating finger 21 is inclined at an angle relative to the horizontal plane in which the rapier head 11 moves during insertion. In addition, the orientation of the axis of rotation 27 can be chosen by the person skilled in the art depending on the design of the weaving machine and/or the design and number of the transport elements 9.

Referring to fig. 4 and 5, the transmission mechanism includes a first transmission rod 28, a second transmission rod 30, a third transmission rod 32 and a fixing frame 17, one end of the first transmission rod 28 is connected to the driving shaft 29, and the first transmission rod 28 is driven by the driving shaft 29, and the driving shaft 29 is parallel to the rotating shaft 27. One end of the second transmission rod 30 is connected with the fixed frame 17 through a rotating shaft 27, and two ends of the third transmission rod 32 are respectively and rotatably connected with the other end of the first transmission rod 28 and the other end of the second transmission rod 30. The base 211 of the weft separating finger is attached to the second driving rod 30 with the other end facing in the transverse direction of the plurality of weft yarns. The weft separating device also comprises a retainer 26, and the driving mechanism 22, the transmission mechanism 23 and the fixing frame 17 are all arranged on the retainer 26.

In particular, the second transmission lever 30 is rotatably mounted about the axis of rotation 27 of the weft separating finger 21 by means of a bearing 31. The first transfer lever 28 is mounted on the drive shaft 29 by means of bolts 15 (see fig. 5). The bearing 31 is mounted in a mount 17, and the mount 17 is fixed to the holder 26 by bolts 16 (see fig. 4). The second transmission lever 30 is connected to the first transmission lever 28 by a third transmission lever 32, so that the second transmission lever 30 is driven by the drive unit 22 to rotate together with the weft separating fingers 21 about the rotation axis 27. The first transfer bar 28, the second transfer bar 30 and the third transfer bar 32 together form a four-bar linkage system. In the exemplary embodiment shown, the distance between the drive shaft 29 and the third transmission rod 32 is not equal to the distance between the rotational axis 27 and the third transmission rod 32, i.e. the distance between the drive shaft 29 and the first joint 33 is not equal to the distance between the rotational axis 27 of the second transmission rod 30 and the second joint 34. The third transmission rod 32 is therefore not parallel to the connecting line between the drive shaft 29 and the rotation axis 27 of the second transmission rod 30. This design is parallel for the connecting line of the third transmission rod 32 and the second transmission rod 30. However, the present invention is not limited to this design of the transmission mechanism 23, and many modifications may occur to those skilled in the art.

As shown in fig. 2, when the weft separating finger 21 is in the inner position, the weft separating finger 21 is located between the delivered weft thread 5 and the undelivered weft thread 4,6,7 to separate the delivered weft thread 5 from the weft threads 4,6, 7. In the embodiment shown, the weft separating fingers 21 are arranged above the delivered weft thread 5 and below the undelivered weft threads 4,6,7 to ensure that the undelivered weft threads 4,6,7 are above the rapier head 11 as shown in fig. 2, so that the delivered weft thread 5 is taken up only by the rapier head 11 for introduction into the warp shed 12 and only the delivered weft thread 5 is guided to the weft cutter 8 (see fig. 1) and cut near the edge of the fabric 2.

As shown in fig. 3, when the weft separating finger 21 is in the outer position, the weft separating finger 21 is not located between a delivered weft thread 5 and an undelivered weft thread 4,6, 7. However, in this position it can still be achieved that the rapier head 11 only picks up the transported weft thread 5 for introduction into the warp shed 12.

It is remarked that for each introduction, it is not necessary to separate the weft thread delivered and the weft thread not delivered by means of the weft thread separating fingers 21. Thus, according to the invention, the drive unit 22 can be controlled by the control unit 24 (see fig. 1) to move the separating finger 21 only at selected moments in a selected weaving cycle, so that for a selected weft insertion the weft separating finger 21 is moved to the inside position and for other weft insertions the weft separating finger 21 is not moved to the inside position. The drive unit 22 may be controlled by a control unit 24 via a control cable 14, the control cable 14 being partially shown in fig. 4.

An insertion weaving cycle with a movement of the weft separating fingers 21 into an inner position can be selected by the setting unit 25 (see fig. 1). In addition, in the embodiment of the present invention, the inner position to which the weft separating fingers 21 are moved may be set individually for each weaving cycle. Alternatively or additionally, the drive unit 22 is also adapted to move the weft separating fingers 21 to any intermediate position between the inner and outer positions for the selected weaving cycle.

In particular, when at least one of the last weft thread to be inserted and the next weft thread to be inserted is a weft thread having irregularities such as thickening, or kinking, it is advantageous to drive the weft thread separating finger 21 to the inner position, because the risk of entanglement of the weft thread moved by the transport element 9 between two subsequent insertions is higher. On the other hand, in the case of only regular or smooth weft threads being introduced, the weft separating fingers 21 can remain in the outer position.

Furthermore, the selection of the weaving cycle can be made on the basis of the relative position between the transport elements 9 moving between two subsequent picks, moving the weft separation finger 21 to an inner position. For example, when a conveying element 9 is moved between two subsequent picks and their movement paths are arranged adjacent to each other, the risk of entanglement of a weft thread moved by a conveying element 9 is higher than when a relatively distant conveying element 9 is moved, so that, in one embodiment, a weft thread separating finger 21 is not moved to an inner position if a conveying element 9 moved between two subsequent picks is arranged relatively distant to each other.

With continued reference to fig. 1 to 5, in the embodiment shown, the weft separating finger 21 is in a rod-like structure, and the base 211 to the tip 212 of the weft separating finger 21 of the rod-like structure has a plurality of bends with smooth transition between the plurality of bends, which is designed to facilitate the movement of the weft separating finger 21 without interfering with the movement of the transporting element 9 or with other elements of the weaving machine. In one embodiment, the weft separating finger 21 has a first bend 213 and a second bend 214, the bending directions of the first bend 213 and the second bend 214 being opposite. However, the invention is not limited to this design of the weft separating fingers 21 and other designs may occur to those skilled in the art without departing from the invention.

In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example" or "some examples" or the like are intended to mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples described in this specification can be combined and combined by one skilled in the art.

While embodiments of the present invention have been shown and described above, it is to be understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and that variations, modifications and changes may be made to the above embodiments by those of ordinary skill in the art within the scope of the present invention.

Claims (10)

1. Weft yarn separation device, characterized in that it comprises:

a transmission mechanism (23);

a drive mechanism (22) for driving the transmission mechanism (23);

a weft separating finger (21), the weft separating finger (21) having a finger base (211) and a finger tip (212),

the driving mechanism (22) comprises a driving shaft (29) and a driving unit used for controlling the driving shaft (29) to move, the driving shaft (29) is connected with the transmission mechanism (23), the finger root (211) of the weft separating finger (21) is arranged on the transmission mechanism (23), the finger tip (212) faces the transverse direction of a plurality of wefts, the transmission mechanism (23) drives the weft separating finger to reciprocate, and the weft separating finger can extend into the plurality of wefts.

2. Weft yarn separating device according to claim 1, characterized in that it further comprises a control unit (24) and a setting unit (25) for issuing control commands to the control unit (24), the control unit (24) being connected to the drive unit by means of a cable.

3. Weft yarn separating device according to claim 2, characterized in that the setting unit (25) is wirelessly connected with the control unit (24).

4. Weft separation device according to claim 1, characterized in that the transmission mechanism (23) comprises a first transmission rod (28), a second transmission rod (30), a third transmission rod (32) and a fixed frame (17), one end of the first transmission rod (28) is connected with the drive shaft (29), one end of the second transmission rod (30) is connected with the fixed frame (17) through a rotating shaft (27), and two ends of the third transmission rod (32) are rotatably connected with the other end of the first transmission rod (28) and the other end of the second transmission rod (30), respectively.

5. Weft separation device according to claim 4, characterized in that the weft separation finger (21) is connected at one end to the second transmission rod (30) and at the other end is directed in the transverse direction of a plurality of weft threads.

6. Weft separation device according to claim 4, characterized in that the distance of the drive shaft (29) from the third drive rod (32) is not equal to the distance of the rotation axis (27) from the third drive rod (32).

7. Weft yarn separating device according to claim 4, characterized in that it further comprises a holder (26), the drive mechanism (22), the transmission mechanism (23) and the holder (17) being mounted on the holder (26).

8. Weft separation device according to claim 4, characterized in that the base (211) of the weft separation finger (21) is connected to the second transmission lever (30), the base (211) to the tip (212) of the weft separation finger (21) having a plurality of bends with a smooth transition between them.

9. Weft yarn separating device according to claim 8, characterized in that the weft yarn separating finger (21) has a first bend (213) and a second bend (214), the bending directions of the first bend (213) and the second bend (214) being opposite.

10. Weft yarn separating device according to claim 1, characterized in that it is mounted on a rapier weaving machine.

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