JP2711100B2 - Weft processing equipment for shuttleless loom - Google Patents

Description

Description: BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a weft processing device for passing a weft from a yarn feeder to a weft insertion means in a shuttleless loom. 2. Description of the Related Art Some weft processing apparatuses of this type include, for example, Japanese Patent Application Laid-Open No. 61-119.
There is one disclosed in Japanese Patent Publication No. 746. This means that a clamper and a cutting device are provided between the two yarn feeders, and the other end is fed to the yarn end portion of the yarn feeder from which the weft is drawn out to the weft insertion means including the weft storage device and the weft insertion nozzle. A so-called pictail knot connecting the yarn start ends of the yarns is formed between the two yarn feeders, and both sides of the pictail knot are held by two clampers. And, for example, between the weft storage device and the yarn feeder, or between the weft storage device and the weft insertion nozzle,
When a yarn break occurs between the weft insertion means and the yarn feeder, after the loom is stopped, the weft present between the two clampers is cut by the cutting device, and communicates with the yarn feeder side of the weft storage device. The suction pipe is moved between the two yarn feeders, and the yarn start end of the yarn feeder which has not been used for weft insertion is drawn through the suction pipe to the weft storage device side. Problems to be Solved by the Invention In the event that a yarn break occurs between the yarn supplying body and the weft insertion means, a structure in which a pictorial knot is cut in advance for continuous yarn supply and the weft is drawn through Therefore, every time after the thread breakage occurs and the weft is drawn through, the operator must perform a pictail tying operation and an operation of holding the two sides of the pictail tying portion of the weft with two clampers, The work is troublesome. Therefore, the present invention can automatically pass the weft yarn to the weft inserting means even if a yarn break occurs between the yarn supplying body and the weft inserting means, and further, such as pick tail knotting and the like. An object of the present invention is to provide a weft processing device for a shuttleless loom that can eliminate troublesome work. Means to solve the problem Weft storage device, weft insertion means including a weft insertion nozzle, and weft suction holding that catches the yarn start from the yarn layer surface of the yarn supply by relative rotation between the yarn supply and the suction port Means, and a weft transfer means for transferring the yarn start end captured by the weft suction and holding means to the weft insertion means side, wherein the yarn feeder is held by a support rod which is constantly driven and connected to an output shaft of a drive motor. Have been. Embodiments Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. As shown in FIGS. 1 to 8, this processing device roughly includes a weft insertion device A, a weft suction holding device B, a weft transfer device C, and a first weft transfer device C that are driven and controlled by a controller (not shown) of the shuttleless loom. Weft feeding means D, second weft feeding means E, first relief guide means F, second relief guide means G, first weft removing means H,
A second weft removing means I and a yarn supplying body attaching means J are provided. Here, the weft insertion means A is provided with a weft storage device 1 and a weft insertion nozzle 2, and during normal operation of the shuttleless loom, the yarn feeder 4 is driven by a winding guide 4 that relatively rotates around the drum 3 in the weft storage device 1. point storing wrapped weft insertion of one or more pick worth any one weft w drawn out from a yarn supplier W ₁ to the drum 3 of a plurality of weft package W which is attached to the body attachment means J, the weft of the drum 3 The locking member 5 arranged at the end of the insertion nozzle is driven by the actuator 6 to extract the drum 3 from the drum 3 at a predetermined timing, and the weft w is inserted from the drum 3 by the fluid ejection of the weft insertion nozzle 2. On the contrary, the basic structure of the known structure is the same as that of the known structure in that the locking body 5 is pushed into the drum 3 and the weft w is moored thereto to finish the weft insertion of one pick. On the other hand, the weft suction holding means B is structured to capture the yarn beginning wa from the yarn layer surface of the yarn supplier W ₁ by relative rotation of the yarn supplier W ₁ and the suction opening 9a. The yarn supplier relative rotation between W ₁ and the suction opening 9a is in this embodiment are embodied by rotating in the direction unwinding the yarn supplier W _1. Specifically, the weft suction holding means B is a pulse motor 8 which constitutes an actuator attached to a portion of the apparatus main body (see FIGS. 5 to 8) 7 between the weft inserting means A and the yarn supplying body attaching means J. And a holding arm 9 fixed to the output shaft 8a. The holding arm 9 is driven by the rotation of the pulse motor 8 to move to a standby position indicated by a solid line in FIG.
It is structured to move to a thread transfer position indicated by a virtual line. Holding the pulse motor 8 retaining arm 9, together with the sequence moves to the retracted position → the thread take-up position → thread passing position by the yarn breakage detection signal from the above-mentioned controller, in the weft there detection signal of the sensor S ₂ of the weft yarn delivery means C The drive of the arm 9 is controlled so as to return to the yarn transfer position → the retraction position. Note the movement of the thread passing position from the thread take-up position of the holding arm 9, are to be initiated by the weft presence detection signal of the sensor S ₁ provided on the holding arm 9. At the free end of the holding arm 9, the above-mentioned suction port 9a is formed. This suction port 9a has become a slit having an axial length substantially equal longitudinal width of the yarn layer surface of the yarn supplier W _1, when the holding arm 9 is stopped in thread take-up position, the sheet as shown in Figure 1 together are opposed so as to be elongated in the axial direction relative to the yarn layer surface Itotai W _1, yarn supplier W ₁ of the unwinding rotational direction of the suction opening 9a as shown in FIG. 2 (arrow X direction)
A gap d for sucking air can be formed between the rear portion and the yarn layer surface. The suction port 9a is connected to a suction pump via a passage 9b formed in the holding arm 9 and a flexible pipe 10 connected thereto.
Connected to 11. The suction pump 11, until the weft there detection signal of the sensor S ₂ of the weft yarn delivery means C from the thread take-up position of the holding arm 9 by the aforementioned controller is adapted to suction drive. A cutter 12 is provided in the suction port side portion of the passage 9b.
Sensor in the portion of the pipe 10 for detecting the presence or absence of the weft yarn W ₁ from
It is disposed the S _1. After the suction operation of the suction nozzle 15 by the weft transfer means C is started by the controller described above, the cutter 12 cuts and retracts via an actuator (not shown). Weft transferring means C, so the thread starting end wa weft supply package W ₁ captured by the weft suction holding means B, the structure to be passed to the weft insertion means A side received in thread passing position of the weft suction holding means B I have. Specifically, the suction attached to the working rod end of a cylinder (see FIGS. 5 to 8) 14 constituting an actuator attached to a portion between the weft inserting means A and the yarn supplying means attaching means J of the apparatus body 7. A nozzle 15 and a scissor-type cutter 16 are provided. The suction nozzle 15 and the cutter 16 are provided. These suction nozzle 15 and cutter 16 are connected to cylinder 14
In FIG. 1, a reciprocating operation is performed between a yarn receiving position indicated by a solid line and a yarn passing position indicated by a virtual line by the expansion and contraction drive. This yarn receiving position is set so as to correspond to the yarn transfer position of the weft suction and holding means B. However, the weft transferring means C at the yarn receiving position does not interfere with the weft suction and holding means B at the yarn transferring position. It has become. Cylinder 14 in the aforementioned controller, the yarn a suction nozzle 15 and the cutter 12 from the suction port peripheral edge provided by the weft presence detection signal generator of sensor S ₂ for detecting the presence or absence of the weft yarn w of the suction nozzle 15 with a predetermined time delay as well as forward to receiving position → thread passing position is controlled and the cutter 16 suction nozzle 15 in the weft there detection signal of the sensor S ₃ of the first weft feeding means D to return operation to the thread passing position → thread receives ing. The suction nozzle 15 is connected to a suction pump 18 via a flexible pipe 17. The suction pump 18 sucks drive after unwinding stop the yarn supplier W ₁ in the above controller are controlled so as to suck stopped at the weft there detection signal of the sensor S _3. The first weft feeding means D is for transferring the weft w to the weft storage apparatus 1 side by fluid injection between the weft transfer means C and the weft storage apparatus 1, and the yarn feed nozzle 20 attached to the apparatus main body 7 is moved. Have. The yarn feed nozzle 20 is disposed so that a yarn guide hole penetrating toward the weft transfer means C and the weft storage device 1 is coaxially aligned with a yarn guide hole entrance of the winding guide 4. An air pump 23 as a pressure air source is connected to an air supply port of the yarn feed nozzle 20 via an electromagnetically driven directional control valve 21 having a valve opening position and a valve closing position, and a pressure regulator 22. Directional control valve 21 by the weft presence detection signal of the sensor S ₃ after loom normal operation signal and the weaving machine stop from the foregoing the controller in this embodiment is set to open position, the weft-conveying air flow in the yarn feed nozzle 20 On the other hand, on the contrary, the direction control valve 21 is controlled by a thread breakage detection signal from the controller.
Is set to the valve closing position, and the weft transfer airflow is stopped. Sensor also on the inlet side of the yarn feed nozzle 20 Yes by arranging the sensor S ₃ for detecting the presence or absence of the weft yarn w as described above, to detect the presence or absence of weft yarn w to outlet
S ₄ is provided. The second weft feeding means E transfers the weft w to the weft insertion nozzle 2 by fluid ejection between the weft storage device 1 and the second relief guide means G. A nozzle 24 is provided. The yarn feed nozzle 24 is disposed so that the yarn guide hole penetrating toward the weft storage device 1 and the weft insertion nozzle 2 is coaxially aligned with the yarn guide hole entrance of the weft insertion nozzle 2. An air pump 27 as a source of pressurized air is connected to an air supply port of the yarn feed nozzle 24 via an electromagnetically driven directional control valve 25 having a valve opening position and a valve closing position, and a pressure regulator 26.
Directional control valve 25 by the loom normal operation signal and the weft presence detection signal of the sensor S ₃ after the loom is stopped from the controller in this embodiment is set in the valve-opening position, generates a weft-conveying air flow in the yarn feed nozzle 24 On the other hand, on the other hand, the direction control valve is
25 is set to the valve closing position so as to stop the weft transfer airflow. The outlet side of the yarn feed nozzle 24 are disposed a sensor S ₅ for detecting the presence or absence of the weft w. The first relief guide means F guides the weft w from the winding guide 4 to the second weft feed means E. The guide pipe is mounted on the end of the operating rod of a cylinder 30 which constitutes an actuator attached to the apparatus main body 7. It has 31. The guide pipe 31 is configured to move to a retracted position shown by a solid line in FIG. 1 and a guide position shown by a virtual line by the expansion and contraction drive of the cylinder 30. The cylinder 30 is controlled so as to move the guide pipe 31 from the retracted position to the guide position based on the yarn breakage detection signal from the controller described above, and to return from the guide position to the retracted position based on the weft presence detection signal from the controller. . In this guide position, the openings at both ends of the guide pipe 31 are arranged to face the outlet of the winding guide 4 and the inlet of the yarn feed nozzle 24 of the second weft feed means E. Sensors S ₈ and S ₉ for detecting the presence or absence of the weft w are provided at the openings at both ends of the guide pipe 31. As shown in FIG. 3, a thread relief port 32 is formed in the guide pipe 31 at a portion of the peripheral wall on the drum 3 side. The second relief guide means G is for guiding the weft w from the second weft feed means E to the weft insertion nozzle 2, and includes a cylinder 35 as an actuator attached to the apparatus main body 7.
And a guide pipe 36 attached to the end of the operating rod.
The guide pipe 36 is driven by the expansion and contraction of the cylinder 35 to be the first
The structure moves to a retreat position indicated by a solid line and a guide position indicated by a virtual line in the drawing. In this guide position, both ends of the guide pipe 36 are disposed so as to face the outlet of the yarn feed nozzle 24 and the inlet of the weft insertion nozzle 2 in the second weft feed means E. The cylinder 35 is controlled so as to move the guide pipe 36 from the retracted position to the guide position by the yarn breakage detection signal from the controller described above, and to return to the guide position → the retracted position by the weft presence detection signal from the controller. I have. A thread escape port 37 is cut out in the peripheral wall of the guide pipe 36 in the same manner as the guide pipe 31 in the first relief guide means F. A sensor ₆ for detecting the presence or absence of a weft w between the guide pipe 36 and the weft insertion noise 2
Is provided. Further is provided a sensor S ₇ in the weft insertion side of the weft insertion nozzle 2. The first weft removing means H has a structure in which an airflow acts on the broken weft w from the lateral direction at the first weft feeding means D to remove it. This is specifically the yarn feed nozzle 20
A pressure air nozzle 40 and an air guide pipe 41 are disposed on the peripheral wall outlet side of the air nozzle in such a manner as to face each other in the diameter direction. The pressure air nozzle 40 is connected to an air pump 44 constituting a pressure air source via an electromagnetically driven directional control valve 42 having a valve opening position and a valve closing position, and a pressure regulator 43,
By the opening operation of the direction control valve 42, compressed air is blown laterally to the weft w in the yarn feed nozzle 20. Pump 44 while being driven by the yarn breakage detection signal from the above controller, and is controlled to stop at the weft there detection signal of the sensor S _10. Air guide pipe
41 receives the pressurized air blown to the weft w from the pressurized air nozzle 40, to which a yarn collecting device 45 is connected, and an opening formed in the intermediate portion thereof has a cutter 46 and a sensor S ₁₀ are arranged. The cutter 46 is adapted to be cut, the return operation in the weft there detection signal of the sensor S _10. The second weft removing means 1 has a structure in which when the yarn breaks, the weft w wound around the drum 3 is cut and removed. Specifically, it is constituted by a cutting device 50 and a suction device 51. The cutting device 50 includes a cutter 53 attached to an end of an operating rod of a cylinder 52 as an actuator attached to the device main body 7. The cylinder 52 is controlled to extend and retract so as to move the thread breakage detection signal cutter 53 from the controller to a retracted position shown by a solid line in FIG. 1 and a thread cut position shown by a virtual line in FIG. When the cutter 53 at the thread cutting position is inserted and arranged in any one of the plurality of cutter taking-in grooves 3a formed on the winding surface of the drum 3 as shown in FIG. , The weft w is cut and returned via the above actuator. The plurality of cutter taking-in grooves 3a are arranged apart from each other in the circumferential direction of the drum 3 and extend substantially linearly along the axial direction of the drum 3. The suction device 51 has a suction pipe 54 for removing the weft w cut by the cutting device 50 from the drum 3. This suction pipe 54
Is attached to the apparatus main body 7, and its suction port is opposed to the winding peripheral surface of the drum 3 so as not to interfere with the cutting device 50 at the thread cutting position described above. The suction pipe 54 is connected to a suction pump 56 via a filter 55. The suction pump 56 is driven by a yarn breakage detection signal from the controller for a sufficient and necessary time to suck the weft w cut by the cutting device 50. The yarn feeder mounting means J includes, for example, a cross-shaped movable frame 61 having a plurality of arms fixed to an output shaft 60a of a pulse motor 60 mounted on the apparatus main body 7. The movable frame 61 is configured to be rotated by a rotation of the pulse motor 60 at a rotation angle equivalent to the number of the plurality of arms, in this embodiment, a rotation angle of 90 degrees. The pulse motor 60 is, for example a pick tail knot and when yarn yarn supplier W ₁ becomes weft insertion can limit the amount not to, or thread a new yarn supplier W with each other by a pick tail knot weft When starting to be used for insertion, driving and stopping are controlled by the aforementioned controller at the required rotation angle. A pulse motor 62 different from the above is attached to each end of each arm of the movable frame 61. A support rod 63 is provided on each of the output shafts 62a of the pulse motors 62.
Is always connected to drive. A yarn feeder W is mounted on each of these support rods 63 so that the pipe-shaped core is detachably fitted to the support rod 63 so as to be detachable. Yarn W ₁
A pulse motor 62 that is mounted in during the in-shown controller described above, until the weft there detected by the sensor S ₂ in thread passing position from the suction operation starting at the yarn feed position of the weft suction holding means B, the yarn feed is controlled body W ₁ so as to rotate the drive in the unwinding direction of rotation. According to the above embodiment structure, the shuttleless loom that normal operation is stopped, the presence or absence of weft yarn w is detected by the sensor S ₃ to S ₇ by an instruction from the controller outside the FIG. Now for example, the sensor S ₇ is assumed to have detected the absence of the weft w, firstly, the first weft removing means H, present over the yarn feed nozzle 24 from the yarn feeding nozzle 20 by operation of the second weft removing means I respectively The weft w is removed. That is, the yarn breakage detection signal from the controller, the pulse motor 62 is stopped, unwound rotation of the weft supply package W ₁ is a state of being restricted, (i) the air pump 44, suction pump 56, the cylinder 52
Drives. (B) The cutter 53 moves from the retracted position to the cutting position to cut the weft w wound around the drum 3. (C) The yarn feed nozzle from the cut weft w and the drum 3
The weft w present on the 24 side is sucked and removed by the suction pipe 54, and the weft w present in the yarn feed nozzle 20 from the drum 3 is introduced into the air guide pipe 41 by the pressurized air injected from the pressurized air nozzle 40. It is sucked. (D) sensor S ₁₀ detects that a weft w in Shirubeki pipe 41 (sensor S ₁₀ outputs a weft presence detection signal to the controller). (E) The cutter 46 cuts the weft w in the air guide pipe 41. (F) The weft w extending from the air guide pipe 41 toward the drum 3 is collected by the yarn collecting device 45. (G) Shirubeki pipe 41 from the yarn supplier W ₁ as shown in Figure 5
, The weft W is stretched, and the air guide pipe 41
From which the weft yarn to the yarn feed nozzle 24 is removed. At this time, it is assumed that the weft w of the weft insertion nozzle 2 has been removed by a weft removing means outside the drawing provided on the weft insertion side of the weft insertion nozzle 2. Next, the yarn breakage detection signal from the controller by the weft presence detection signal of the sensor S _10, the weft suction holding means
B, the weft transfer means C, the first weft feeding means D, the second weft feeding means E, the first relief guide means F, the second relief guide means G, and the yarn feeder attaching means J actuate the weft w. The thread W ₁ is passed through the weft insertion nozzle 2. That is, (a) the pulse motor 8, the suction pumps 11, 18, the air pumps 23, 27, and the cylinders 30, 35 are driven. (B) The holding arm 9 moves from the retracted position to the thread take-up position,
At the same time, the guide pipes 31, 36 move from the retreat position to the guide position and stop. (C) a pulse motor 62 is rotated in the arrow X direction of unwinding the yarn supplier W _1. (D) yarn by a relative rotation between the yarn supplier W ₁ and the suction opening 9a as shown in FIG. 6, from the thread starting end wa (yarn supplier W ₁ of the weft w yarn layer surface of the yarn supplier W ₁ (Including the portion extended to the feed nozzle 20) is sucked and captured in the suction port 9a. (E) sensor S ₁ is detected that there is a weft w in the holding arm 9 (sensor S ₁ is output to the weft presence detection signal to the controller). (F) As shown in FIGS. 7 (A) and 7 (B), the pulse motor 8 is driven again, and the holding arm 9 moves from the thread take-up position to the yarn transfer position and stops. (G) the suction nozzle 15 sensor S ₂ from the suction port 9a, the cutter 1
6 via the detects that there the weft yarn w over the yarn supplier W _1. The rotation of (h) the pulse motor 62 is stopped to unwinding direction of yarn supplier W ₁ is stopped, the cutter 12 to cut the weft yarn w near the suction port 9a, from the suction port 9a of the weft w The part on the suction nozzle 15 is sucked and captured by the suction nozzle 15,
Further, the holding arm 9 returns to the thread transfer position → the retracted position. (I) As shown in FIG. 8, the suction nozzle 15 and the cutter 16 move and stop together from the yarn receiving position to the yarn transfer position. (G) The cutter 16 cuts the weft w, and the yarn start end wa of the weft w is sucked and captured by the yarn feed nozzle 20. (Le) sensor S ₃ detects that a weft w yarn feed nozzle 20 (sensor S ₃ and outputs a weft presence detection signal to the controller). (E) suction nozzle 15, with the cutter 16 is returned to the thread passing position → the yarn receiving position, guide 4 wound from the yarn feed nozzle 20 yarn yarn supplier W ₁ is the fluid ejection of the yarn feed nozzle 20, the induction pipe 31 And arrives at the yarn feed nozzle 24 via (W) Then, in addition to the above (E), the fluid ejection of the yarn feed nozzle 24 acts on the weft w, and the weft w reaches the weft insertion nozzle 2 from the yarn feed nozzle 24 via the guide pipe 36. That weft w is pulled through from the weft package W ₁ in the weft insertion nozzle 2, sensor _{S 3 ~S 7, S 8,} S 9 and outputs a weft presence detection signal to the controller. (F) sensor S ₃ ~S _7, S _8, the cylinder 30 and 35 by the weft presence detection signal of the controller due to S ₉ are driven, induced pipes 31 and 36 is restored to the introduction position → retracted position. At this time, the middle part of the weft w is removed from the guide pipes 31 and 36 through the yarn escape ports 32 and 34. (Yo) sensor S _8, S ₉ outputs the weft absence detection signal to the controller, shuttleless loom is normally operated by the controller. In case any yarn breakage between the yarn supplier W ₁ and the weft insertion means A, since the weft w from yarn supplier W ₁ by a series of operations described above to weft insertion means A is automatically pulled through is there. On the other hand, as shown in phantom in FIG. 1, if the pick tail tied yarn beginning wa of weft package W on the thread end portion wb of yarn supplier W _1, the weft package W ₁ yarn Disappears following the yarn feeder W
It will be clear that this thread can be automatically wefted. Moreover, in this embodiment, since the yarn feeder W is held by the support rod 63 which is always drivingly connected to the output shaft 62a of the drive motor 62, there is no need to perform positioning for transmitting the driving force, and the structure is simple. Inexpensive configuration. Furthermore, since the yarn feeder W can be driven to rotate at any time if necessary, for example, when the yarn feeder W is blown off by an airflow generator fixed to or moved on one side with respect to the yarn feeder W, the airflow is generated. Since the airflow of the device acts from one side of the yarn feeder W, there is an airflow shadow in which the airflow does not act on a part of the yarnfeeder, but this airflow shadow is shifted by rotating the yarnfeeder W. This makes it possible to uniformly prevent fly waste from being attached to the yarn supplying body W over the entire circumference of the yarn supplying body W. Note that the present invention is not limited to the above embodiment,
Although illustration is omitted, for example, the following structures (a) to (e) are also possible. By any one of the weft absence detection signal of the (a) sensor S ₃ to S ₇ is output to the controller, the controller or stops the shuttleless loom, without performing (b) pick tail knot, run out of yarn yarn supplier W _1, shuttleless loom is stopped, the pulse motor 60 is driven to rotate, yarn supplier W is moved to the position of the yarn supplier W _1, after stopping, the embodiment A series of operations automatically pulls the weft w from the yarn supplying body W to the weft insertion means A. (c) An ejector is provided in the passage 9b of the holding arm 9, and the pressurized air is sent from the ejector to the passage 9b suction suction port 9a and the thread starting end wa ejector action caused by the injected toward the outlet side towards the opposite, or capture, (d) yarn supplier W ₁ is stationary, the yarn supplying the holding arm 9 Body w ₁
By rotating around, or configure the relative rotation between the yarn supplier W ₁ and the suction opening 9a, (e) support rod of a new weft supply package in a portion other than the yarn supplier W ₁
Refill 63 automatically or manually. Effects of the Invention As described above, according to the present invention, even if a yarn break occurs between the yarn supplying body and the weft insertion means, the relative rotation between the yarn supplying body and the suction port causes the yarn supplying body to rotate. Since the yarn starting end is captured from the yarn layer surface and delivered to the weft insertion means side, the weft can be automatically passed from the yarn supply body to the weft insertion means, and further troublesome pick tail knotting etc. There is a new effect that unnecessary work becomes unnecessary and workability can be remarkably improved. Moreover, in the present invention, since the yarn feeder is always held by the support rod which is drivingly connected to the output shaft of the drive motor, there is no need to provide a moving mechanism for transmitting the driving force, and it is necessary to position the yarn feeder. Since there is no control, the structure of the control and device can be simple and inexpensive.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a schematic configuration diagram showing one embodiment of the present invention, FIG. 2 is a side view showing a relative position between a yarn supplying body and a suction port of the embodiment,
FIG. 3 is a side view of the guide pipe of the embodiment, FIG. 4 is a side view of the drum of the embodiment, and FIGS. 5 to 8 are operation explanatory diagrams of the embodiment. 1 ... weft storage device, 2 ... weft insertion nozzle, 9a ... suction port, A ... weft insertion means, B ... weft suction holding means, C ...
… Weft transfer means, W, W ₁ … supply, w… weft, wa
...... The thread start end.

Claims (1)

(57) [Claims] Weft storage means including a weft storage device and a weft insertion nozzle;
Weft suction holding means for capturing the yarn starting end from the yarn layer surface of the yarn supplying body by relative rotation between the yarn supplying body and the suction port, and the yarn starting end captured by the weft suction holding means is placed on the weft insertion means side. And a weft transfer means for transferring, the yarn feeder includes:
A weft processing device for a shuttleless loom, characterized in that the weft processing device is held by a support rod that is always drivingly connected to an output shaft of a drive motor.