JP2009287144A - Device for inspecting running state of weft in fluid jet loom - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a device for inspecting running state of weft to reduce the load on an operator. <P>SOLUTION: The weft running state inspection device S1 is composed of a body 16 and an insertion member 17 having a thin form to enable the insertion into and extraction from a warp opening by pushing apart through the warps T. The body 16 is fixed to a sleigh 9 by an L-shaped attaching bracket 18 fixed to a side face, a bolt 19 and a nut 20. The insertion member 17 has a hollow space 23 formed inside the member and an opening 24 formed at the tip end of an intrusion part 21, connected to the hollow space 23 and directing to a weft path. A light projector 25 composed of a light-emitting diode is inserted and fixed in the opening 24. Accordingly, the intrusion part 21 of the insertion member 17 of the weft running state inspection device S1 is introduced into the warp opening by the backward rotation of the sleigh 9. When the rotation angle of the loom reaches a preset level, light is projected from the light projector 25 to the weft path to illuminate the weft. Since the light projector 25 emits light synchronous with the rotation of the loom, the running state of the weft Y can be observed and inspected in stopped state. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to a weft running state inspection device for inspecting a running state of a weft thread inserted in a fluid jet loom in a warp opening.

  In the fluid jet loom, the weft is injected into the warp opening by the fluid ejected from the weft insertion nozzle and is inserted. For example, when there is a tendency that poor weft insertion tends to occur, the weft running state in the warp opening, that is, the weft posture is inspected. Based on the test results of the weft flying state, the operation timing of the weft insertion nozzle, auxiliary nozzle (in the case of a fluid jet loom by air injection) or the locking pin of the weft length measuring storage device is adjusted as necessary. .

  The inspection of the weft flying state is performed by, for example, a stroboscope 4 disclosed in Patent Document 1 that can emit light only at a specific loom rotation angle during set weft insertion. Although there is no detailed description in Patent Document 1, the configuration of the stroboscope 4 that is generally used in a loom includes a power source line for connecting to a box body having a light source and a light projecting unit and a power source, and a reference in one rotation of the loom. A signal line or the like for transmitting a signal is provided.

  When using the stroboscope 4, the operator first plugs the power line into a power outlet and connects the signal line to a control device that transmits the rotation reference signal of the loom. Next, the operator sets the loom rotation angle to be inspected by the setting device provided in the stroboscope 4. Thereafter, the operator holds the stroboscope 4 in his / her hand and holds it over the weft path near the position corresponding to the loom rotation angle to be inspected, and projects the light at the set loom rotation angle to visually inspect the weft posture. .

  The inspection of the weft flying state by the stroboscope 4 is performed at a position appropriately selected between the position near the weft insertion start side and the position near the weft insertion end side. Further, since the weft is present in the warp opening, the stroboscope 4 projects light from above the warp sheet toward the weft path.

JP-A-1-213443

  An operator who inspects the weft flying state must use both hands to hold the relatively large stroboscope 4 over the inspection position. In addition, it is necessary to maintain a mental and physical tension state in order to fix the light projection to the inspection position as much as possible, and it is unavoidable for the operator. Further, in order to prepare the stroboscope 4, it is necessary to connect a power line and a signal line, and it is necessary to pull the power line and the signal line to move to the inspection position, so that the operability is very poor. Furthermore, since the light projection by the stroboscope 4 must be performed from above the opened warp sheet, the light source of the stroboscope 4 must have a higher luminous intensity.

  The object of the present invention is to provide a weft running state inspection device that reduces the load on the operator.

  In the fluid jet loom according to the first aspect of the present invention, the weft is injected by the fluid ejected from the weft insertion nozzle, the weft is inserted into the warp opening, and the weft inserted is beaten with a kite. An insertion member having an intruding portion capable of appearing and retracting is provided in the warp opening, a light projecting body that projects light in synchronization with a loom rotation angle set in the intrusion portion of the insertion member is provided, and the light projecting of the light projecting body is provided The direction is directed to the weft path at the time of weft insertion.

  According to the present invention described in claim 1, it is not necessary for the operator to use the weft running state inspection device corresponding to the stroboscope in his / her hand, and the load on the operator can be greatly reduced.

  The present invention according to claim 2 is characterized in that the light projecting body is constituted by a light emitting diode, so that light can be directly projected to the weft from the warp opening with a simple configuration.

  According to a third aspect of the present invention, the light projecting body is constituted by an optical fiber mounted on the insertion member, and a light source that emits light toward the optical fiber is installed on a proximal end side of the insertion member. Therefore, since only the light projecting body can be made to appear and disappear in the warp opening and the light source can be installed outside the warp opening, the size of the light source can be freely selected. Therefore, it is possible to set the luminous intensity most suitable for inspecting the weft flying state from the relationship between the weaving conditions and the type of weft.

  According to a fourth aspect of the present invention, a cavity extending from the base end portion to the entry portion is formed in the insertion member, and a prism or a mirror is mounted in the cavity on the entry portion side to constitute the light projecting body. Since a light source that emits light toward the inside of the cavity is installed on the base end side, the same effect as in the third aspect can be obtained with a simple configuration.

  The invention of claim 5 is characterized in that the insertion member provided with the light projecting body is installed at a plurality of locations within the weaving width. By setting it as a standard, it is possible to inspect the weft flying state immediately when necessary.

  The invention of claim 6 is characterized in that a mounting groove extending in a weaving width direction is formed in a slay that supports the heel, and a mounting bracket that supports the insertion member is detachably fastened to the mounting groove. Therefore, it is easy to attach and remove the weft running state inspection device.

  According to the seventh aspect of the present invention, the insertion member is disposed in a loom frame below the warp opening so as to be reciprocable by a driving means, and the driving means reciprocates the insertion member only at the time of weft inspection. Therefore, it is not necessary for the insertion member to unnecessarily enter the warp opening during normal weaving, and the influence on the warp can be reduced.

  According to the present invention, the operability is improved and the burden on the operator in the inspection of the weft flying state can be greatly reduced.

(First embodiment)
A first embodiment implemented in an air jet loom (hereinafter simply referred to as a loom) will be described below with reference to FIGS. 1 and 2.
The weft Y drawn from the yarn feeding bobbin 1 is wound around the drum 4 by the yarn winding tube 3 of the weft length measuring and storing device 2 and is stored in a certain amount by engagement with the electromagnetic locking pin 5. The weft releasing operation of the locking pin 5 is performed at a weft insertion start timing programmed in a control device (not shown), and the weft locking operation of the locking pin 5 is a photoelectric sensor 6 for detecting the consumption amount of the weft Y on the drum 4. Based on the signal from The timing at which the locking pin 5 locks the weft according to the signal from the photoelectric sensor 6 is the weft insertion end timing.

  When the weft insertion start timing comes during the operation of the loom, the air fluid is ejected from the weft insertion nozzle 7 and then the locking pin 5 releases the weft Y. Therefore, the weft Y is injected into the warp opening (see FIG. 2) formed by the upper and lower warps T, and assists the air injection from the auxiliary nozzles 8 arranged along the weft path YX indicated by the one-dot chain line. It is inserted while being done. The weft path YX is formed in a weft guide hole 11 of a reed 10 called a so-called deformed reed arranged in parallel on the sley 9 in the weft insertion direction. Reference numeral 12 denotes a weft feeler disposed near the weft end on the opposite weft insertion side, and detects whether or not the weft Y has been inserted normally. Reference numeral 13 denotes a cutter disposed between the weft insertion nozzle 7 and the weft insertion side weave end, and cuts the weft Y at an appropriate timing after the weft insertion. Reference sign W (see FIG. 2) indicates a woven fabric.

  A plurality of weft running state inspection devices S1, S2, S3, and S4 are provided on the sley 9 so as to be positioned within the weaving width. The weft running state inspection device S1 is located near the weaving end on the weft insertion start side, S2 and S3 are located at appropriate positions within the weaving width, and S4 is located near the weaving end on the weft insertion end side. Each weft running state inspection device S1, S2, S3, S4 has the same configuration, and the specific configuration of the weft running state inspection device S1 will be described with reference to FIG.

  FIG. 2 is a side cross-sectional view as seen from the side opposite to the weft insertion side of FIG. A mounting groove 14 extending in the weaving width direction is provided on the front side of the sley 9. The mounting groove 14 is formed in a convex shape in cross section by a hole 14a having a rectangular cross section inside and a narrow slit 15 opening outside the sley 9. Although not described in detail, a plurality of auxiliary nozzles 8 are detachably attached to the attachment groove 14.

  The weft running state inspection device S1 includes a main body 16 and an insertion member 17 that is formed so as to be thin enough to protrude and retract into the warp opening by pressing the warp T and the warp T separately. The main body 16 has an L-shaped mounting bracket 18 fixed to the side surface, and the mounting bracket 18 has a bolt 19 loosely fitted on its free side and a nut 20 screwed into the bolt 19. Accordingly, the head of the bolt 19 is inserted into the hole 14a of the mounting groove 14 and the screw shaft of the bolt 19 is inserted into the slit 15 from the side, and the main body 16 together with the bolt 19 is placed near the weft end on the weft insertion side within the weaving width. Moving. Next, by tightening the nut 20, the head of the bolt 19 comes into contact with the inner wall of the hole 14 a and the main body 16 comes into contact with the front surface of the sley 9, so that the weft running state inspection device S 1 is fixed to the slay 9. In addition, the weft running state inspection device S1 can be easily attached and detached because it can be moved to another position and removed from the slay 9 if the nut 20 is loosened.

  The insertion member 17 has an intrusion part 21 and a base end part 22 that actually appear and disappear in the warp opening, and the base end part 22 is fixed in a state of being fitted into the main body 16. Further, the insertion member 17 has a cavity 23 formed therein and extending from the base end portion 22 to the intrusion portion 21 and an opening 24 communicating with the cavity 23 at the distal end portion of the intrusion portion 21 and directed to the weft path YX. . A light projecting body 25 made of a light emitting diode is inserted and fixed in the opening 24 of the intrusion portion 21, and the light projecting body 25 is directed to the weft path YX.

  The power line connected to the light projecting body 25 is included in the cable 26 and is drawn out of the main body 16 through the cavity 23 of the insertion member 17 and a cable hole (not shown) in the main body 16. For example, the cable 26 is pulled out to the side of the loom with the surface of the sley 9 facing up, and the power line is connected to a power source (not shown) via the control device C.

  In FIG. 1, the power line of the weft running state inspection device S <b> 1 is indicated by K <b> 1, and a configuration for connecting to the control device C is shown. Further, the power lines of the weft flying state inspection devices S2, S3, and S4 are denoted by K2, K3, and K4, respectively, and are connected to the control device C. The function panel 27 includes an input unit 28 having data input keys and various switches and a data display unit 29, and is connected to the control device C. The rotary encoder 30 is a device that inputs an origin signal and a rotation angle signal during one rotation of the loom to the control device C.

  The input unit 28 of the function panel 27 is provided with operation switches 31 that are provided with displays S1, S2, S3, and S4 individually corresponding to the weft running state inspection devices S1, S2, S3, and S4. Therefore, for example, when the button S1 of the operation switch 31 is pressed, the power line K1 of the weft running state inspection device S1 is turned on (power supply state) at the set loom rotation angle, and the light projection state is entered. In addition, a remote controller 32 capable of setting operation for each weft running state inspection device S1, S2, S3, S4 is detachably attached in the vicinity of the function panel 27. The remote controller 32 can set the timing of projection of each weft running state inspection device S1, S2, S3, S4 by the rotation angle of the loom. Note that the loom rotation angle can also be set as the light emission timing at the input unit 28 of the function panel 27. Further, it is possible to set so that the weft running state at a specific position can be inspected by using any one of the weft running state inspection devices S1, S2, S3, S4. Alternatively, it is possible to set so that a plurality of weft running states can be simultaneously inspected using a plurality of weft running state inspection devices or all weft running state inspection devices.

The operation of the first embodiment configured as described above will be described below.
Each weft running state inspection device S1, S2, S3, S4 is attached to the sley 9 as a partial mechanism of the loom. For example, the case where the weft running state immediately after being injected from the weft inserting nozzle 7 is inspected by the weft running state inspection device S1 will be described.

  During or before the operation of the loom for checking the state of the weft Y, the operator goes to the function panel 27 and presses the button S1 of the operation switch 31 provided in the input unit 28. The weft running state inspection device S1 is in a state in which power is supplied from the power line K1 by the control device C at the set loom rotation angle, and the light projecting body 25 of the insertion member 17 projects light. Next, the loom rotation angle corresponding to the timing at which the weft Y inserted is passed through the light projection position of the weft running state inspection device S1 is set in the control device C by the remote controller 32.

  With the operation of the loom, the origin signal transmitted from the rotary encoder 30 every rotation of the loom is input to the control device C. The control device C calculates and stores the light projection timing corresponding to the loom rotation angle set by the remote controller 32 based on the origin signal.

  At the weft insertion time, the intruding portion 21 of the insertion member 17 of the weft running state inspection device S1 advances into the warp opening by the rearward rotation of the sley 9. Therefore, when the set rotation angle of the loom is reached, the light projecting body 25 provided in the intrusion portion 21 projects light in the directing direction (see FIG. 1) indicated by the phantom line toward the weft path YX. Irradiate. Since the light projecting body 25 projects light in synchronization with the rotation of the loom, the flying state of the weft Y can be observed and inspected in a stationary state. Note that the weft running state inspection device S1 can stop the light projecting action by pressing a stop button (not shown) provided on the remote control 32 or pressing the button S1 of the operation switch 31 again.

  When using other weft running state inspection devices S2, S3, S4, one of the buttons S2, S3, S4 of the operation switch 31 is pressed. Further, by setting the rotation angle of the loom corresponding to the timing at which the weft Y arrives at the position where the weft running state inspection device to be used is arranged by the remote controller 32, the same throwing as the above-described weft running state inspection device S1 is performed. Light action can be performed. In addition, when the buttons S1, S2, S3, and S4 of the operation switch 31 are pressed, a plurality of corresponding weft running state inspection devices can be operated, and all the wefts can be operated by pressing all the buttons. The flight state inspection device can be activated.

In the first embodiment of the present invention described above, the following operational effects are obtained.
(1) Since the weft running state inspection devices S1, S2, S3, and S4 are in the state of being attached to the sley 9, there is no need for the operator to hold them in their hands or route the power cable 26, Operability is improved.
(2) Since light can be projected at a position closest to the flying weft Y to be inspected, even a light projecting body having a low luminous intensity can be used sufficiently and energy consumption can be improved. The effect can be expected.
(3) By operating the weft running state inspection devices S1, S2, S3, and S4 with the remote controller 32, the operator's freedom of action is sufficiently ensured as compared to when operating with the function panel 27. For example, when observing the state of the weft Y with the weft running state inspection device S4 on the opposite weft insertion side, the user moves to the function panel 27 on the weft insertion side in order to change the light projection timing of the weft running state inspection device S4. There is no need to do it.
(4) Since the light can be directly projected onto the weft Y without passing through the warp T, the sharpness of the flying weft Y is increased and the observation becomes easy.
(5) By operating a plurality or all of the weft running state inspection devices S1, S2, S3, and S4, it is possible to inspect the weft running state in the entire weaving width without operation one by one.

(Second Embodiment)
The second embodiment shown in FIG. 3 is obtained by changing the configuration of the light projecting body 25 in the first embodiment. The same components as those in the first embodiment are denoted by the same reference numerals, and detailed description is given. Is omitted.
The light projecting body 25 in the first embodiment includes a light source by disposing a light emitting diode. In contrast, in the second embodiment, the light source is separated from the light projecting body. FIG. 3 specifically shows the weft running state inspection device S1.

  The light projecting body in the second embodiment is constituted by an optical fiber 33 inserted into the cavity 23 of the insertion member 17. One end of the optical fiber 33 is disposed in the opening 24 formed in the intrusion portion 21 of the insertion member 17 and is directed to the weft path YX. The other end of the optical fiber 33 is disposed on the base end 22 side of the insertion member 17 so as to face the light source 34 built in the main body 16. A known light source such as a light emitting diode or a xenon lamp can be used as the light source 34. The operation method of the weft flying state inspection device S1 is the same as that in the first embodiment.

  Therefore, when the weft running state inspection device S1 reaches the set loom rotation angle, the light source 34 emits light toward the other end of the optical fiber 33, and the light is guided to one end side of the optical fiber 33 to pass the weft path YX from the opening 24. The weft Y is irradiated. In the second embodiment, in addition to the operational effects of the first embodiment, the light source 34 is attached to the main body 16 that does not enter the warp opening. Therefore, it is possible to use a larger light source than in the first embodiment. The light source suitable for the weaving conditions and the type of weft Y used can be selected.

  The present invention is not limited to the configuration of each of the embodiments described above, and various modifications are possible within the scope of the gist of the present invention, and can be implemented as follows.

(1) In the second embodiment, the projector can use a mirror or a prism instead of the optical fiber 33. In this embodiment, a mirror or prism is attached to the opening 24 communicating with the cavity 23 of the insertion member 17. The mirror or prism is attached so that the reflected light or transmitted light is directed to the weft path YX. The light source 34 provided in the main body 16 is disposed so as to emit light toward the cavity 23. Therefore, after the light emitted from the light source 34 is guided by the cavity 23, the optical path is changed by the mirror or the prism, and is projected onto the weft path YX. This embodiment can obtain the same effects as those of the second embodiment.

(2) The weft running state inspection devices S1, S2, S3, and S4 are not attached to the sley 9 in advance as in the first embodiment, but are attached to the sley 9 only when inspecting the weft Y. It can also be configured to be removed at the end of the inspection.
(3) The number of weft flying state inspection devices mounted within the weaving width is not limited to four as in the first embodiment, and can be increased or decreased as necessary.
(4) The cable 26 of the power supply line connected to the weft running state inspection devices S 1, S 2, S 3 and S 4 may be configured to be connected to a connector provided on the slay 9. In this case, the connector includes a power supply line connected to a power supply outside the loom and a signal line connected to the control device C. The connector receives a signal input from the control device C, and the weft running state inspection devices S1, S2, S3, S4. And power supply at the set loom rotation angle.

(5) The power supply control to the weft flying state inspection devices S1, S2, S3, and S4 may be configured to be performed using a non-contact power transmission means using a mutual induction action.
(6) The weft running state inspection device S1, S2, S3, S4 itself can be configured to include a battery and omit the power line. In this case, a control circuit and a wireless receiver are also incorporated, and the origin signal of one rotation of the loom is directly transmitted to the control circuit in the weft flying state inspection devices S1, S2, S3, S4 by wireless communication. In this case, the configuration is further simplified.

(7) The weft running state inspection devices S1, S2, S3, and S4 are not necessarily provided on the slay 9, and may be provided on the loom frame below the warp opening. In this case, the insertion member 17 of the weft running state inspection device S1, S2, S3, S4 is disposed so as to be able to reciprocate by a driving means such as a cam. The weft running state inspection devices S1, S2, S3, and S4 are moved forward by the driving means during the warp opening, and the intruding portion 21 of the insertion member 17 advances into the warp opening to perform a light projecting action. In this embodiment, the drive means does not need to be driven at all times, and if the insertion member 17 is reciprocated only during the inspection of the weft Y, the insertion member 17 is not required in the warp opening during normal weaving. There is no need to enter, and the influence on the warp T can be reduced.

(8) A camera connected to the function panel 27 is installed on the rail disposed above the warp opening, and the weft running state under inspection is photographed by the weft running state inspection devices S1, S2, S3, and S4. Can be configured. Since the photographing data can be observed on the display unit 29 of the function panel 27, the work becomes easy. Further, if an image recognition processing program is set in the function panel 27, it is fed back to each weft insertion mechanism such as the weft insertion nozzle 7, the auxiliary nozzle 8, and the locking pin 5 of the weft length measuring storage device based on the photographing data. Automatic control can be performed.

  Although each said embodiment showed the example which implemented this invention in the air jet loom, it is also possible to implement this invention in a water jet loom.

It is the schematic plan view which partially cut the weft insertion mechanism. It is side surface sectional drawing which shows the attachment state of the weft running state inspection apparatus. It is side surface sectional drawing which shows the attachment state of the weft running state inspection apparatus in 2nd Embodiment.

Explanation of symbols

5 Locking Pin 7 Weft Inserting Nozzle 8 Auxiliary Nozzle 9 Slay 10 Hail 11 Weft Guide Hole 14 Mounting Groove 14a Hole 15 Slit 16 Body 17 Inserting Member 18 Mounting Bracket 19 Bolt 20 Nut 21 Intrusion 22 Base End 23 Cavity 24 Opening 25 Light projector 26 Cable 27 Function panel 31 Operation switch 32 Remote control 33 Optical fiber 34 as light emitter Light source S1, S2, S3, S4 Weft running state inspection device K1, K2, K3, K4 Power line YX Weft path

Claims (7)

In the fluid jet loom that injects the weft yarn by the fluid ejected from the weft insertion nozzle, performs the weft insertion into the warp opening, and beats the weft yarn inserted by the scissors.
An insertion member having an intruding portion that can be projected and retracted in the warp opening is provided, a light projecting body that projects light in synchronization with a loom rotation angle set in the intrusion portion of the insertion member, and a light projecting of the light projecting body A weft flying state inspection device in a fluid jet loom characterized by having a direction directed to the weft path at the time of weft insertion.   The said light projecting body is comprised with the light emitting diode, The weft running state inspection apparatus in the fluid ejection type loom of Claim 1 characterized by the above-mentioned.   2. The fluid ejection according to claim 1, wherein the light projecting member includes an optical fiber attached to the insertion member, and a light source that emits light toward the optical fiber is installed on a proximal end side of the insertion member. Weft running state inspection device for type looms.   A cavity extending from the base end portion to the intrusion portion is formed in the insertion member, and a prism or a mirror is mounted in the cavity on the intrusion portion side to constitute the light projecting body and at the base end side in the cavity The weft flying state inspection device for a fluid jet loom according to claim 1, wherein a light source that emits light is installed.   5. The weft running state inspection device in the fluid jet loom according to claim 1, wherein the insertion member including the light projecting body is installed at a plurality of locations within a weaving width. .   6. A mounting groove extending in a weaving width direction is formed in a sley that supports the collar, and a mounting bracket that supports the insertion member is detachably fastened to the mounting groove. The weft flying state inspection device in the fluid jet loom according to claim 1.   The insertion member is disposed in a loom frame below the warp opening so as to be reciprocable by a driving means, and the driving means reciprocates the insertion member only at the time of weft inspection. Item 6. The weft running state inspection device in the fluid jet loom according to any one of items 5 to 6.

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