JP2010065369A - Treatment apparatus for weft tip end portion of water jet loom - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a treatment apparatus for the weft tip end portion of a water jet loom, smoothing the weaving and decreasing the loss of the weft by simultaneously satisfying a means for decreasing phenomena of fiber loosening generated at the weft tip end portion and a means for keeping tension at the tip end of the weft even when setting short the length of the length measurement of the weft extended on the one side of the right vicinity yarn part so as to provide stable weft perception. <P>SOLUTION: A weft cutter cutting the weft arrived at the right vicinity yarn part of the water jet loom and a weft sensor sensing whether the weft arrived or not are set at a position within a range capable of passing through a reed space, the position of a catch cord yarn is made movable to the weft cutter side, a reed space of generally narrow width is formed at a reed positioned on the front side, and the weft cutter and the weft sensor are made passable through the reed space. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention is provided on one side of the right side thread portion of a water jet loom, and includes a weft sensor that senses the presence or absence of a weft yarn, and a weft cutter that grips the arrived weft yarn with a catch cord yarn and then cuts it. The installation position is located within the range that can pass through one cage space. In order to use one cage space in common, the installation position of the weft sensor is the direction of the weft cutting machine. By moving to the right side thread part, the phenomenon of loosening of the weft end part can be prevented and stable weaving can be sensed and smooth weaving can be achieved. The loss of weft yarn can be minimized.

  The installation of the weft cutting machine and the weft sensor installed in the right side thread portion of the conventional water jet loom is configured as follows.

  That is, as shown in FIG. 7, the weft cutting machine (2) is provided at a position close to the right side thread portion (1), and the weft sensor (3) is located at a certain distance from the weft cutting machine (2). ), And the catch cord thread (4) is installed side by side.

  Also, in front of the weft cutting machine (2) and the weft sensor (3), there is an arm (7) for moving the weft thread (5) supplied in the weft direction to the pre-weaving (starting point of weaving) (6). There are two cage spaces through which the weft cutting machine (2) and the weft sensor (3) can pass, that is, the weft cutting machine cage space (2A). Separate weft sensor cage spaces (3A).

  There are the following problems when the two spaces are installed as described above.

  That is, the weft yarn (5) arrives in front of the sheath (7) through the warp yarn (8) opened by the jet water, and the arrived weft yarn (5) moves to the front side of the sheath (7). Therefore, when moving toward the weft sensor (3), the position of the weft tip (5 ') must be supplied to the right of the catch cord thread (4) to some extent (usually 4-5 cm or more). In this case, the weft end portion (5 ′) is not stably held by the catch cord yarn (4), and stable continuous operation of the loom becomes impossible.

  However, if the weft tip (5 ') is supplied to the right side of the catch cord thread (4) with a certain margin as described above, the water jetted from the spray nozzle causes the weft thread (5) to flow. In the process of pulling and reaching the right side thread part (1) of the warp yarn (8), the spray water itself arrives near the right side thread part (1) while spreading in a water droplet state, unlike the initial stage of injection. In the process of passing through the weft cutting machine cage space (2A) and the weft sensing machine cage space (3A), the water droplets are colliding with the two cage space (2A) and (3A) side surfaces. As part of the weft disperses and interferes with the progress of the water jet, loosening occurs at the tip (5 ') of the weft (5). Becomes unstable.

  As a result, the loosening of the weft tip (5 ') reduces the tension of the weft (5), and the weft (5) with less tension passes through the sensor of the weft sensor (3). At times, stable passage becomes difficult, and eventually, a problem that the operation of the loom stops can easily occur.

  In addition to the above problems, the weft (5) arrived by the jet water contacts the front of the two cage spaces (2A) and (3A) through which the weft cutting machine (2) and the weft sensor (3) pass. When the arm (7) moves forward in the state of being pulled, the weft (5) is bent in a dotted line state as shown in FIG. Since the passage of (3) becomes unstable, there has been a problem that the stable operation of the loom will be affected.

  Furthermore, if you want to reduce the number of cage spaces using the weft cutting machine cage space (2A) and the weft sensor cage cage space (3A) as one cage space, the cage space becomes too wide. Since the weft yarn (5) is loosened, a separate auxiliary sheath (7 ′) is required between the cage spaces (2A) and (3A).

  The problem described above and the unstable sensing of the weft is that the larger the space (2A) and (3A), the more the loosening phenomenon caused by the lowering of the weft tension occurs, making it difficult for the weft sensor to pass through. It was. However, until now, the weft supply length (direction of weft) has been conventionally made long (long) to enable stable weft detection, so weft loss (arrived) There has been a problem that the waste thread that is discarded after the tip of the weft is cut) is uneconomical.

  In order to solve such various conventional problems, the present invention includes a weft cutting machine that cuts the weft that has arrived at the right side thread portion of the water jet loom and a weft sensor that senses whether or not the weft has arrived. Distributing the spray water that unifies the space, minimizes the width, and pulls the weft at the right side thread by installing it so that it is located within the range that can pass through the two space A means to reduce the phenomenon of loosening the yarn generated at the tip of the weft thread by reducing the phenomenon, and the right side thread by minimizing the phenomenon of loosening the weft due to the cage space in the process of guiding the weft yarn that has arrived and moving forward Even if the length of the weft extended on one side of the section is set to be short, the means for maintaining tension at the tip of the weft is satisfied at the same time so that stable weft sensing can be established. Smooth weaving and reduce weft loss It is the thing.

  As means for solving the above-mentioned problems, the present invention provides a single space for a weft cutting machine that cuts the weft that has arrived at the right-hand side thread portion of the water jet loom and a weft sensor that senses whether or not the weft has arrived. The catch cord thread is moved so as to move toward the weft cutting machine, and is placed in a range where it can pass through. A space is formed, and a weft cutting machine and a weft sensor can be passed through the space.

  The present invention relates to a weft weaving machine using a water jet weaving machine, which is installed on the right side thread part to detect the arrival of the weft yarn and the position of the catch cord thread that holds the tip of the weft thread. That is, in order to move closer to the right side thread portion, the weft sensing device and the weft cutting device are allowed to pass through one narrow space having a generally narrow width, thereby allowing injection. Reduce water dispersion to prevent loosening of the weft tip, so that stable weaving can be detected and smooth weaving can be achieved, and weft loss can be minimized. This has the effect of making economical textile weaving possible.

FIG. 1 is a plan view of the apparatus of the present invention. FIG. 2 is a perspective view of an essential part of the present invention. FIG. 3 is a side view of FIG. FIG. 4 is a plan configuration diagram of another embodiment of the device of the present invention. FIG. 5 is a perspective view of an essential part of another embodiment of the present invention. 6 is a side configuration diagram of FIG. FIG. 7 is a plan view of a conventional apparatus.

  Embodiments of the present invention will be described below with reference to the drawings.

  The technical summary to be provided by the present invention is to prevent the phenomenon of loosening of the front end of the weft so that the detection of the presence or absence of the weft and the weaving of the fabric can proceed smoothly, and the loss of the weft In this invention, a weft cutting machine, a weft sensor and a catch cord yarn are installed on the right side thread portion of the water jet loom. Catch cord yarn is installed after the weft sensor is installed in front of the weft sensor and the weft yarn that arrives is moved forward in front of the weave to detect the arrival of the weft yarn through the weft sensor. In the configuration of the weft front end processing unit of the water jet loom that is gripped by the weft cutting machine, a single space is formed between the catch cord yarn and the right side yarn portion. In order to reduce the weft loss by reducing the distance between the weft sensor and the right side thread, the weft sensor is moved to the weft cutting machine so that the weft sensor and the weft cutting machine take up space. It is located in the range which can pass.

  In order to position the weft cutting machine and the weft sensor in the range that can pass through one space as described above, the weft cutting machine and the weft sensor are integrated or installed separately. Since it may be made to adjoin so that it may pass through one space, it demonstrates in detail below.

  FIG. 1 is a plan view of a weft tip processing apparatus for a water jet loom to be provided in the present invention, and FIGS. 2 and 3 are a weft cutting machine (10) and a weft sensor (20 FIG. The weft sensor (20) is fixedly installed by using the fixing surface (16) of the main body (15) of the weft cutting machine (10), and at the tip of the main body (21) constituting the weft sensor (20) The sensing unit (23) in which the guide unit (22) is formed is configured.

  The fixed blade (11) is fixedly installed on the side of the main body (21) of the weft sensor (20), and the movable blade (12) is positioned on the side of the fixed blade (11). (12) is integrally fixed to the movable blade plate (13), and the movable blade plate (13) is connected to the operating shaft (14) sandwiched between the main body (15) of the cutting machine so as to be rotatable forward and backward. Thus, the movable blade (12) was moved up and down from the fixed blade (11).

  Accordingly, in the present invention, the right weft yarn sensor (20) is moved to the right side yarn portion (W-1) of the warp yarn (W), i.e., to the weft cutting machine, so that the right side yarn portion is moved. The distance between (W-1) and the weft detector (20) was reduced. In addition, the catch cord thread (C-1) is installed close to the outer part of the weft sensor (20) so that it is connected to the spindle (35) and cut by the weft cutter (10). The cut yarn of weft (W-2) was processed.

  In addition, a sheath (30) is installed in front of the weft sensor (20), and between the catch cord thread (C-1) and the right side thread (W-1) is placed on the sheath (30). One weave space (31) is configured to allow the weft cutting machine (10) and the weft sensor (20), which are configured as a single unit, to pass through and to be fed in the direction of the weft. The weft yarn (W-2) was moved forward to the front of the weave (the point where the fabric (C) starts) (C ').

  FIG. 4 is a plan configuration diagram of another embodiment of the device of the present invention, and FIGS. 5 and 6 are a perspective view and a side configuration diagram of the weft cutting machine (10) and the weft sensor (20) installed in FIG. Also in this embodiment, as in the embodiment of FIGS. 1 to 3, the weft sensor (20) is installed at the right side thread portion (W-1), that is, toward the weft cutting machine (10). The distance between the right side thread part (W-1) and the weft sensor (20) was made closer to be moved.

  However, in this embodiment, the weft cutting machine (10) and the weft sensor (20) are not configured as an integrated type, but are installed separately and pass through a single space as if they were installed as an integrated type. So positioned.

  That is, like a normal weft cutter, the fixed blade (11) is fixedly installed on the main body (15) of the cutter, and the movable blade (12) is positioned on the side of the fixed blade (11). The movable blade (12) is integrally fixed to the movable blade plate (13), and the movable blade plate (13) is sandwiched between the main body (15) of the cutting machine so that forward and reverse rotation is possible (14 So that the movable blade (12) is moved up and down from the fixed blade (11), and the weft thread is placed on the line that lines with the weft cutter (10). The sensor 20 is positioned.

  As the installation position of the weft sensor (20), it can be installed in the main body (15) of the cutting machine, the tem pull bar (36) or the like. In this embodiment, a configuration fixed to the tem pull bar (36) will be described.

  In other words, as shown in FIG. 5, the bracket (37) is fastened and fixed on the tem pull bar (36), and the main body (21) of the weft sensor (20) is positioned on the bracket (37), and then is integrated. The guide is fixed so that the tip of the main body (21) is bent toward the weft cutting machine (10) by the thickness of the weft cutting machine (10) and then protrudes forward. The plate (21 ′) is configured in front of the weft cutting machine (10), the guide plate (21 ′) includes a guide hole (22 ′) in which a guide portion (22) is formed, and the guide portion A sensing part (23) was formed inside (22). At this time, the jet water that pulls the weft (W-2) passes through the guide hole (22 ').

  In addition, a catch cord thread (C-1) is installed on the outer side of the weft sensor (20) and connected to the spindle (35) to cut the weft thread (W-2) cut by the weft cutter (10). The cut yarn was processed.

  In addition, a arm (30) is installed in front of the weft sensor (20), and the arm (30) is located between the catch cord thread (C-1) and the right side thread (W-1). One weave space (31) is configured to allow the weft sensor (20) and the weft cutting machine (10) to enter and exit together, and the supplied weft (W-2) Moved forward to Orizen (C ').

  The weft sensor used in the present invention can be applied to all the weft sensors of various systems.

  In FIGS. 1 and 4, reference numerals that are not explained are guide plates (38) of catch cord yarns.

  Conventionally, when weaving a fabric using a water jet loom, the weft (W-2) has arrived by the spray water sprayed from the spray nozzle (not shown) (30) will be located in the front, In this state, the weft (30) advances and the weft yarn (W-2) moves forward to the weaving front (C '), and the weft sensor detects the arrival of the weft yarn. After being gripped by the cord yarn, weaving proceeded by repeating the process of being cut by the weft cutter (10).

  However, in the present invention, unlike the prior art, the position of the weft sensor (20) is moved toward the weft cutting machine (10) so as to be integrated, or the weft sensor (20). Conventionally used weft sensing allows the weft cutting machine (10) to pass through one cage space (31) by positioning it separately so as to pass through one cage space. The space of the machine can be omitted, and the position of the catch cord thread (C-1) can be moved closer to the right side thread (W-1) by the weft sensor (20). Since it becomes possible, the supply length of the weft (W-2) can be reduced accordingly.

  In addition, since the one space (31) is filled with the first space (31), the water droplets of the jet water that pulls the weft (W-2) collide with the first space and disperse. In addition to reducing the phenomenon that occurs, it is possible to reduce the phenomenon of drooping backward in the process of guiding the weft yarn that arrives at the arm (30) and moving forward, so supply of the tip of the weft (W-2) Even if the length is set short, the vibration phenomenon at the tip of the weft (W-2) can be greatly reduced. Moreover, smooth weaving can be realized by stably detecting the presence or absence of the weft, and economical weaving can be realized by minimizing the weft loss.

C-1 Catch Cord Yarn W Warp W-1 Right Side Wedge W-2 Weft 10 Weft Cutting Machine 11 Fixed Blade 12 Movable Blade 13 Movable Blade Plate 14 Operating Shaft 15 Cutting Machine Body 16 Fixed Surface 20 Weft Sense Sensor 21 Body 21 'guide plate 22 guide part 22' guide hole 23 sensing part 30 length 31 space

Claims (1)

A weft cutting machine, a weft sensor and a catch cord yarn are installed on the right side thread of the water jet loom, and the weft yarn arrived after the weft is installed in front of the weft sensor. The weft yarn of the water jet loom is made to sense whether or not the weft has arrived through the weft sensor, and is then gripped by the catch cord yarn and cut by the weft cutter. In the configuration of the processing device at the tip,
In the arm, one arm space is formed between the catch cord thread and the right side thread part,
In order to reduce the weft loss by reducing the distance between the weft sensor and the right-hand side thread portion, the weft sensor is moved toward the weft cutter to cut the weft sensor and the weft cut. A processing apparatus for a weft tip portion of a water jet loom, wherein the machine is positioned within a range that can pass through the space.

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